Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git

163 files changed, 5380 insertions, 2614 deletions

diff --git a/fs/Kconfig b/fs/Kconfig
index 6a4ad4b..a7c0cc3 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -741,56 +741,6 @@ config SYSFS
 
 	Designers of embedded systems may wish to say N here to conserve space.
 
-config DEVFS_FS
-	bool "/dev file system support (OBSOLETE)"
-	depends on EXPERIMENTAL
-	help
-	  This is support for devfs, a virtual file system (like /proc) which
-	  provides the file system interface to device drivers, normally found
-	  in /dev. Devfs does not depend on major and minor number
-	  allocations. Device drivers register entries in /dev which then
-	  appear automatically, which means that the system administrator does
-	  not have to create character and block special device files in the
-	  /dev directory using the mknod command (or MAKEDEV script) anymore.
-
-	  This is work in progress. If you want to use this, you *must* read
-	  the material in <file:Documentation/filesystems/devfs/>, especially
-	  the file README there.
-
-	  Note that devfs no longer manages /dev/pts!  If you are using UNIX98
-	  ptys, you will also need to mount the /dev/pts filesystem (devpts).
-
-	  Note that devfs has been obsoleted by udev,
-	  <http://www.kernel.org/pub/linux/utils/kernel/hotplug/>.
-	  It has been stripped down to a bare minimum and is only provided for
-	  legacy installations that use its naming scheme which is
-	  unfortunately different from the names normal Linux installations
-	  use.
-
-	  If unsure, say N.
-
-config DEVFS_MOUNT
-	bool "Automatically mount at boot"
-	depends on DEVFS_FS
-	help
-	  This option appears if you have CONFIG_DEVFS_FS enabled. Setting
-	  this to 'Y' will make the kernel automatically mount devfs onto /dev
-	  when the system is booted, before the init thread is started.
-	  You can override this with the "devfs=nomount" boot option.
-
-	  If unsure, say N.
-
-config DEVFS_DEBUG
-	bool "Debug devfs"
-	depends on DEVFS_FS
-	help
-	  If you say Y here, then the /dev file system code will generate
-	  debugging messages. See the file
-	  <file:Documentation/filesystems/devfs/boot-options> for more
-	  details.
-
-	  If unsure, say N.
-
 config DEVPTS_FS_XATTR
 	bool "/dev/pts Extended Attributes"
 	depends on UNIX98_PTYS
@@ -1318,6 +1268,7 @@ config NFS_FS
 	depends on INET
 	select LOCKD
 	select SUNRPC
+	select NFS_ACL_SUPPORT if NFS_V3_ACL
 	help
 	  If you are connected to some other (usually local) Unix computer
 	  (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
@@ -1360,6 +1311,16 @@ config NFS_V3
 
 	  If unsure, say Y.
 
+config NFS_V3_ACL
+	bool "Provide client support for the NFSv3 ACL protocol extension"
+	depends on NFS_V3
+	help
+	  Implement the NFSv3 ACL protocol extension for manipulating POSIX
+	  Access Control Lists.  The server should also be compiled with
+	  the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option.
+
+	  If unsure, say N.
+
 config NFS_V4
 	bool "Provide NFSv4 client support (EXPERIMENTAL)"
 	depends on NFS_FS && EXPERIMENTAL
@@ -1403,6 +1364,7 @@ config NFSD
 	select LOCKD
 	select SUNRPC
 	select EXPORTFS
+	select NFS_ACL_SUPPORT if NFSD_V3_ACL || NFSD_V2_ACL
 	help
 	  If you want your Linux box to act as an NFS *server*, so that other
 	  computers on your local network which support NFS can access certain
@@ -1426,6 +1388,10 @@ config NFSD
 	  To compile the NFS server support as a module, choose M here: the
 	  module will be called nfsd.  If unsure, say N.
 
+config NFSD_V2_ACL
+	bool
+	depends on NFSD
+
 config NFSD_V3
 	bool "Provide NFSv3 server support"
 	depends on NFSD
@@ -1433,6 +1399,16 @@ config NFSD_V3
 	  If you would like to include the NFSv3 server as well as the NFSv2
 	  server, say Y here.  If unsure, say Y.
 
+config NFSD_V3_ACL
+	bool "Provide server support for the NFSv3 ACL protocol extension"
+	depends on NFSD_V3
+	select NFSD_V2_ACL
+	help
+	  Implement the NFSv3 ACL protocol extension for manipulating POSIX
+	  Access Control Lists on exported file systems. NFS clients should
+	  be compiled with the NFSv3 ACL protocol extension; see the
+	  CONFIG_NFS_V3_ACL option.  If unsure, say N.
+
 config NFSD_V4
 	bool "Provide NFSv4 server support (EXPERIMENTAL)"
 	depends on NFSD_V3 && EXPERIMENTAL
@@ -1477,6 +1453,15 @@ config LOCKD_V4
 config EXPORTFS
 	tristate
 
+config NFS_ACL_SUPPORT
+	tristate
+	select FS_POSIX_ACL
+
+config NFS_COMMON
+	bool
+	depends on NFSD || NFS_FS
+	default y
+
 config SUNRPC
 	tristate
 
diff --git a/fs/Makefile b/fs/Makefile
index 443f2bc..fc92e59 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_BINFMT_FLAT)	+= binfmt_flat.o
 
 obj-$(CONFIG_FS_MBCACHE)	+= mbcache.o
 obj-$(CONFIG_FS_POSIX_ACL)	+= posix_acl.o xattr_acl.o
+obj-$(CONFIG_NFS_COMMON)	+= nfs_common/
 
 obj-$(CONFIG_QUOTA)		+= dquot.o
 obj-$(CONFIG_QFMT_V1)		+= quota_v1.o
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index c7b2b88..9c09641 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -185,6 +185,19 @@ int autofs4_wait(struct autofs_sb_info *,struct dentry *, enum autofs_notify);
 int autofs4_wait_release(struct autofs_sb_info *,autofs_wqt_t,int);
 void autofs4_catatonic_mode(struct autofs_sb_info *);
 
+static inline int autofs4_follow_mount(struct vfsmount **mnt, struct dentry **dentry)
+{
+	int res = 0;
+
+	while (d_mountpoint(*dentry)) {
+		int followed = follow_down(mnt, dentry);
+		if (!followed)
+			break;
+		res = 1;
+	}
+	return res;
+}
+
 static inline int simple_positive(struct dentry *dentry)
 {
 	return dentry->d_inode && !d_unhashed(dentry);
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index 500425e..feb6ac4 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -56,12 +56,9 @@ static int autofs4_check_mount(struct vfsmount *mnt, struct dentry *dentry)
 	mntget(mnt);
 	dget(dentry);
 
-	if (!follow_down(&mnt, &dentry))
+	if (!autofs4_follow_mount(&mnt, &dentry))
 		goto done;
 
-	while (d_mountpoint(dentry) && follow_down(&mnt, &dentry))
-		;
-
 	/* This is an autofs submount, we can't expire it */
 	if (is_autofs4_dentry(dentry))
 		goto done;
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 3765c04..2a771ec 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -205,7 +205,11 @@ static int autofs4_dir_open(struct inode *inode, struct file *file)
 		struct vfsmount *fp_mnt = mntget(mnt);
 		struct dentry *fp_dentry = dget(dentry);
 
-		while (follow_down(&fp_mnt, &fp_dentry) && d_mountpoint(fp_dentry));
+		if (!autofs4_follow_mount(&fp_mnt, &fp_dentry)) {
+			dput(fp_dentry);
+			mntput(fp_mnt);
+			return -ENOENT;
+		}
 
 		fp = dentry_open(fp_dentry, fp_mnt, file->f_flags);
 		status = PTR_ERR(fp);
@@ -302,7 +306,14 @@ static int try_to_fill_dentry(struct dentry *dentry,
 		
 		DPRINTK("expire done status=%d", status);
 		
-		return 0;
+		/*
+		 * If the directory still exists the mount request must
+		 * continue otherwise it can't be followed at the right
+		 * time during the walk.
+		 */
+		status = d_invalidate(dentry);
+		if (status != -EBUSY)
+			return 0;
 	}
 
 	DPRINTK("dentry=%p %.*s ino=%p",
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 5a40d36..fa2348d 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -191,6 +191,13 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
 	}
 
 	if ( !wq ) {
+		/* Can't wait for an expire if there's no mount */
+		if (notify == NFY_NONE && !d_mountpoint(dentry)) {
+			kfree(name);
+			up(&sbi->wq_sem);
+			return -ENOENT;
+		}
+
 		/* Create a new wait queue */
 		wq = kmalloc(sizeof(struct autofs_wait_queue),GFP_KERNEL);
 		if ( !wq ) {
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 009b892..dd9baab 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -316,6 +316,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 	current->mm->brk = ex.a_bss +
 		(current->mm->start_brk = N_BSSADDR(ex));
 	current->mm->free_area_cache = current->mm->mmap_base;
+	current->mm->cached_hole_size = 0;
 
 	set_mm_counter(current->mm, rss, 0);
 	current->mm->mmap = NULL;
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index f8f6b6b..7976a23 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -775,6 +775,7 @@ static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 	   change some of these later */
 	set_mm_counter(current->mm, rss, 0);
 	current->mm->free_area_cache = current->mm->mmap_base;
+	current->mm->cached_hole_size = 0;
 	retval = setup_arg_pages(bprm, randomize_stack_top(STACK_TOP),
 				 executable_stack);
 	if (retval < 0) {
diff --git a/fs/buffer.c b/fs/buffer.c
index 7e9e409..0befa72 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -528,7 +528,7 @@ static void free_more_memory(void)
 	for_each_pgdat(pgdat) {
 		zones = pgdat->node_zonelists[GFP_NOFS&GFP_ZONEMASK].zones;
 		if (*zones)
-			try_to_free_pages(zones, GFP_NOFS, 0);
+			try_to_free_pages(zones, GFP_NOFS);
 	}
 }
 
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index ef001a9..3d1cce3 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -61,7 +61,7 @@ unsigned long coda_timeout = 30; /* .. secs, then signals will dequeue */
 
 
 struct venus_comm coda_comms[MAX_CODADEVS];
-static struct class_simple *coda_psdev_class;
+static struct class *coda_psdev_class;
 
 /*
  * Device operations
@@ -363,14 +363,14 @@ static int init_coda_psdev(void)
 		     CODA_PSDEV_MAJOR);
               return -EIO;
 	}
-	coda_psdev_class = class_simple_create(THIS_MODULE, "coda");
+	coda_psdev_class = class_create(THIS_MODULE, "coda");
 	if (IS_ERR(coda_psdev_class)) {
 		err = PTR_ERR(coda_psdev_class);
 		goto out_chrdev;
 	}		
 	devfs_mk_dir ("coda");
 	for (i = 0; i < MAX_CODADEVS; i++) {
-		class_simple_device_add(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR,i), 
+		class_device_create(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR,i),
 				NULL, "cfs%d", i);
 		err = devfs_mk_cdev(MKDEV(CODA_PSDEV_MAJOR, i),
 				S_IFCHR|S_IRUSR|S_IWUSR, "coda/%d", i);
@@ -382,8 +382,8 @@ static int init_coda_psdev(void)
 
 out_class:
 	for (i = 0; i < MAX_CODADEVS; i++) 
-		class_simple_device_remove(MKDEV(CODA_PSDEV_MAJOR, i));
-	class_simple_destroy(coda_psdev_class);
+		class_device_destroy(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR, i));
+	class_destroy(coda_psdev_class);
 out_chrdev:
 	unregister_chrdev(CODA_PSDEV_MAJOR, "coda");
 out:
@@ -425,10 +425,10 @@ static int __init init_coda(void)
 	return 0;
 out:
 	for (i = 0; i < MAX_CODADEVS; i++) {
-		class_simple_device_remove(MKDEV(CODA_PSDEV_MAJOR, i));
+		class_device_destroy(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR, i));
 		devfs_remove("coda/%d", i);
 	}
-	class_simple_destroy(coda_psdev_class);
+	class_destroy(coda_psdev_class);
 	devfs_remove("coda");
 	unregister_chrdev(CODA_PSDEV_MAJOR, "coda");
 	coda_sysctl_clean();
@@ -447,10 +447,10 @@ static void __exit exit_coda(void)
                 printk("coda: failed to unregister filesystem\n");
         }
 	for (i = 0; i < MAX_CODADEVS; i++) {
-		class_simple_device_remove(MKDEV(CODA_PSDEV_MAJOR, i));
+		class_device_destroy(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR, i));
 		devfs_remove("coda/%d", i);
 	}
-	class_simple_destroy(coda_psdev_class);
+	class_destroy(coda_psdev_class);
 	devfs_remove("coda");
 	unregister_chrdev(CODA_PSDEV_MAJOR, "coda");
 	coda_sysctl_clean();
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 548556f..efc97d9 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -45,44 +45,15 @@ struct file_operations debugfs_file_operations = {
 	.open =		default_open,
 };
 
-#define simple_type(type, format, temptype, strtolfn)				\
-static ssize_t read_file_##type(struct file *file, char __user *user_buf,	\
-				size_t count, loff_t *ppos)			\
-{										\
-	char buf[32];								\
-	type *val = file->private_data;						\
-										\
-	snprintf(buf, sizeof(buf), format "\n", *val);				\
-	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));\
-}										\
-static ssize_t write_file_##type(struct file *file, const char __user *user_buf,\
-				 size_t count, loff_t *ppos)			\
-{										\
-	char *endp;								\
-	char buf[32];								\
-	int buf_size;								\
-	type *val = file->private_data;						\
-	temptype tmp;								\
-										\
-	memset(buf, 0x00, sizeof(buf));						\
-	buf_size = min(count, (sizeof(buf)-1));					\
-	if (copy_from_user(buf, user_buf, buf_size))				\
-		return -EFAULT;							\
-										\
-	tmp = strtolfn(buf, &endp, 0);						\
-	if ((endp == buf) || ((type)tmp != tmp))				\
-		return -EINVAL;							\
-	*val = tmp;								\
-	return count;								\
-}										\
-static struct file_operations fops_##type = {					\
-	.read =		read_file_##type,					\
-	.write =	write_file_##type,					\
-	.open =		default_open,						\
-};
-simple_type(u8, "%c", unsigned long, simple_strtoul);
-simple_type(u16, "%hi", unsigned long, simple_strtoul);
-simple_type(u32, "%i", unsigned long, simple_strtoul);
+static void debugfs_u8_set(void *data, u64 val)
+{
+	*(u8 *)data = val;
+}
+static u64 debugfs_u8_get(void *data)
+{
+	return *(u8 *)data;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_u8, debugfs_u8_get, debugfs_u8_set, "%llu\n");
 
 /**
  * debugfs_create_u8 - create a file in the debugfs filesystem that is used to read and write a unsigned 8 bit value.
@@ -116,6 +87,16 @@ struct dentry *debugfs_create_u8(const char *name, mode_t mode,
 }
 EXPORT_SYMBOL_GPL(debugfs_create_u8);
 
+static void debugfs_u16_set(void *data, u64 val)
+{
+	*(u16 *)data = val;
+}
+static u64 debugfs_u16_get(void *data)
+{
+	return *(u16 *)data;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_u16, debugfs_u16_get, debugfs_u16_set, "%llu\n");
+
 /**
  * debugfs_create_u16 - create a file in the debugfs filesystem that is used to read and write a unsigned 8 bit value.
  *
@@ -148,6 +129,16 @@ struct dentry *debugfs_create_u16(const char *name, mode_t mode,
 }
 EXPORT_SYMBOL_GPL(debugfs_create_u16);
 
+static void debugfs_u32_set(void *data, u64 val)
+{
+	*(u32 *)data = val;
+}
+static u64 debugfs_u32_get(void *data)
+{
+	return *(u32 *)data;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_u32, debugfs_u32_get, debugfs_u32_set, "%llu\n");
+
 /**
  * debugfs_create_u32 - create a file in the debugfs filesystem that is used to read and write a unsigned 8 bit value.
  *
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 2af3338..3a9b6d1 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -122,6 +122,9 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 
 	start_addr = mm->free_area_cache;
 
+	if (len <= mm->cached_hole_size)
+		start_addr = TASK_UNMAPPED_BASE;
+
 full_search:
 	addr = ALIGN(start_addr, HPAGE_SIZE);
 
diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
index 6030956..7901ac9 100644
--- a/fs/isofs/dir.c
+++ b/fs/isofs/dir.c
@@ -193,12 +193,17 @@ static int do_isofs_readdir(struct inode *inode, struct file *filp,
 
 		/* Handle everything else.  Do name translation if there
 		   is no Rock Ridge NM field. */
-		if (sbi->s_unhide == 'n') {
-			/* Do not report hidden or associated files */
-			if (de->flags[-sbi->s_high_sierra] & 5) {
-				filp->f_pos += de_len;
-				continue;
-			}
+
+		/*
+		 * Do not report hidden files if so instructed, or associated
+		 * files unless instructed to do so
+		 */
+		if ((sbi->s_hide == 'y' &&
+				(de->flags[-sbi->s_high_sierra] & 1)) ||
+		      (sbi->s_showassoc =='n' &&
+				(de->flags[-sbi->s_high_sierra] & 4))) {
+			filp->f_pos += de_len;
+			continue;
 		}
 
 		map = 1;
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index abd7b12..1652de1 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -28,11 +28,6 @@
 
 #define BEQUIET
 
-#ifdef LEAK_CHECK
-static int check_malloc;
-static int check_bread;
-#endif
-
 static int isofs_hashi(struct dentry *parent, struct qstr *qstr);
 static int isofs_hash(struct dentry *parent, struct qstr *qstr);
 static int isofs_dentry_cmpi(struct dentry *dentry, struct qstr *a, struct qstr *b);
@@ -55,11 +50,6 @@ static void isofs_put_super(struct super_block *sb)
 	}
 #endif
 
-#ifdef LEAK_CHECK
-	printk("Outstanding mallocs:%d, outstanding buffers: %d\n",
-	       check_malloc, check_bread);
-#endif
-
 	kfree(sbi);
 	sb->s_fs_info = NULL;
 	return;
@@ -73,7 +63,7 @@ static kmem_cache_t *isofs_inode_cachep;
 static struct inode *isofs_alloc_inode(struct super_block *sb)
 {
 	struct iso_inode_info *ei;
-	ei = (struct iso_inode_info *)kmem_cache_alloc(isofs_inode_cachep, SLAB_KERNEL);
+	ei = kmem_cache_alloc(isofs_inode_cachep, SLAB_KERNEL);
 	if (!ei)
 		return NULL;
 	return &ei->vfs_inode;
@@ -84,9 +74,9 @@ static void isofs_destroy_inode(struct inode *inode)
 	kmem_cache_free(isofs_inode_cachep, ISOFS_I(inode));
 }
 
-static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
+static void init_once(void *foo, kmem_cache_t * cachep, unsigned long flags)
 {
-	struct iso_inode_info *ei = (struct iso_inode_info *) foo;
+	struct iso_inode_info *ei = foo;
 
 	if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
 	    SLAB_CTOR_CONSTRUCTOR)
@@ -107,7 +97,8 @@ static int init_inodecache(void)
 static void destroy_inodecache(void)
 {
 	if (kmem_cache_destroy(isofs_inode_cachep))
-		printk(KERN_INFO "iso_inode_cache: not all structures were freed\n");
+		printk(KERN_INFO "iso_inode_cache: not all structures were "
+					"freed\n");
 }
 
 static int isofs_remount(struct super_block *sb, int *flags, char *data)
@@ -144,7 +135,7 @@ static struct dentry_operations isofs_dentry_ops[] = {
 	{
 		.d_hash		= isofs_hashi_ms,
 		.d_compare	= isofs_dentry_cmpi_ms,
-	}
+	},
 #endif
 };
 
@@ -153,7 +144,8 @@ struct iso9660_options{
 	char rock;
 	char joliet;
 	char cruft;
-	char unhide;
+	char hide;
+	char showassoc;
 	char nocompress;
 	unsigned char check;
 	unsigned int blocksize;
@@ -219,8 +211,8 @@ isofs_hashi_common(struct dentry *dentry, struct qstr *qstr, int ms)
 /*
  * Case insensitive compare of two isofs names.
  */
-static int
-isofs_dentry_cmpi_common(struct dentry *dentry,struct qstr *a,struct qstr *b,int ms)
+static int isofs_dentry_cmpi_common(struct dentry *dentry, struct qstr *a,
+				struct qstr *b, int ms)
 {
 	int alen, blen;
 
@@ -243,8 +235,8 @@ isofs_dentry_cmpi_common(struct dentry *dentry,struct qstr *a,struct qstr *b,int
 /*
  * Case sensitive compare of two isofs names.
  */
-static int
-isofs_dentry_cmp_common(struct dentry *dentry,struct qstr *a,struct qstr *b,int ms)
+static int isofs_dentry_cmp_common(struct dentry *dentry, struct qstr *a,
+					struct qstr *b, int ms)
 {
 	int alen, blen;
 
@@ -318,13 +310,15 @@ enum {
 	Opt_block, Opt_check_r, Opt_check_s, Opt_cruft, Opt_gid, Opt_ignore,
 	Opt_iocharset, Opt_map_a, Opt_map_n, Opt_map_o, Opt_mode, Opt_nojoliet,
 	Opt_norock, Opt_sb, Opt_session, Opt_uid, Opt_unhide, Opt_utf8, Opt_err,
-	Opt_nocompress,
+	Opt_nocompress, Opt_hide, Opt_showassoc,
 };
 
 static match_table_t tokens = {
 	{Opt_norock, "norock"},
 	{Opt_nojoliet, "nojoliet"},
 	{Opt_unhide, "unhide"},
+	{Opt_hide, "hide"},
+	{Opt_showassoc, "showassoc"},
 	{Opt_cruft, "cruft"},
 	{Opt_utf8, "utf8"},
 	{Opt_iocharset, "iocharset=%s"},
@@ -356,7 +350,7 @@ static match_table_t tokens = {
 	{Opt_err, NULL}
 };
 
-static int parse_options(char *options, struct iso9660_options * popt)
+static int parse_options(char *options, struct iso9660_options *popt)
 {
 	char *p;
 	int option;
@@ -365,7 +359,8 @@ static int parse_options(char *options, struct iso9660_options * popt)
 	popt->rock = 'y';
 	popt->joliet = 'y';
 	popt->cruft = 'n';
-	popt->unhide = 'n';
+	popt->hide = 'n';
+	popt->showassoc = 'n';
 	popt->check = 'u';		/* unset */
 	popt->nocompress = 0;
 	popt->blocksize = 1024;
@@ -398,8 +393,12 @@ static int parse_options(char *options, struct iso9660_options * popt)
 		case Opt_nojoliet:
 			popt->joliet = 'n';
 			break;
+		case Opt_hide:
+			popt->hide = 'y';
+			break;
 		case Opt_unhide:
-			popt->unhide = 'y';
+		case Opt_showassoc:
+			popt->showassoc = 'y';
 			break;
 		case Opt_cruft:
 			popt->cruft = 'y';
@@ -493,7 +492,7 @@ static int parse_options(char *options, struct iso9660_options * popt)
  */
 #define WE_OBEY_THE_WRITTEN_STANDARDS 1
 
-static unsigned int isofs_get_last_session(struct super_block *sb,s32 session )
+static unsigned int isofs_get_last_session(struct super_block *sb, s32 session)
 {
 	struct cdrom_multisession ms_info;
 	unsigned int vol_desc_start;
@@ -518,7 +517,8 @@ static unsigned int isofs_get_last_session(struct super_block *sb,s32 session )
 		printk(KERN_ERR "Invalid session number or type of track\n");
 	}
 	i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info);
-	if(session > 0) printk(KERN_ERR "Invalid session number\n");
+	if (session > 0)
+		printk(KERN_ERR "Invalid session number\n");
 #if 0
 	printk("isofs.inode: CDROMMULTISESSION: rc=%d\n",i);
 	if (i==0) {
@@ -557,13 +557,13 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
 	struct iso9660_options		opt;
 	struct isofs_sb_info	      * sbi;
 
-	sbi = kmalloc(sizeof(struct isofs_sb_info), GFP_KERNEL);
+	sbi = kmalloc(sizeof(*sbi), GFP_KERNEL);
 	if (!sbi)
 		return -ENOMEM;
 	s->s_fs_info = sbi;
-	memset(sbi, 0, sizeof(struct isofs_sb_info));
+	memset(sbi, 0, sizeof(*sbi));
 
-	if (!parse_options((char *) data, &opt))
+	if (!parse_options((char *)data, &opt))
 		goto out_freesbi;
 
 	/*
@@ -792,7 +792,8 @@ root_found:
 	sbi->s_rock = (opt.rock == 'y' ? 2 : 0);
 	sbi->s_rock_offset = -1; /* initial offset, will guess until SP is found*/
 	sbi->s_cruft = opt.cruft;
-	sbi->s_unhide = opt.unhide;
+	sbi->s_hide = opt.hide;
+	sbi->s_showassoc = opt.showassoc;
 	sbi->s_uid = opt.uid;
 	sbi->s_gid = opt.gid;
 	sbi->s_utf8 = opt.utf8;
@@ -1002,7 +1003,6 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
 		rv++;
 	}
 
-
 abort:
 	unlock_kernel();
 	return rv;
@@ -1014,7 +1014,7 @@ abort:
 static int isofs_get_block(struct inode *inode, sector_t iblock,
 		    struct buffer_head *bh_result, int create)
 {
-	if ( create ) {
+	if (create) {
 		printk("isofs_get_block: Kernel tries to allocate a block\n");
 		return -EROFS;
 	}
@@ -1061,19 +1061,17 @@ static struct address_space_operations isofs_aops = {
 
 static inline void test_and_set_uid(uid_t *p, uid_t value)
 {
-	if(value) {
+	if (value)
 		*p = value;
-	}
 }
 
 static inline void test_and_set_gid(gid_t *p, gid_t value)
 {
-        if(value) {
+        if (value)
                 *p = value;
-        }
 }
 
-static int isofs_read_level3_size(struct inode * inode)
+static int isofs_read_level3_size(struct inode *inode)
 {
 	unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
 	int high_sierra = ISOFS_SB(inode->i_sb)->s_high_sierra;
@@ -1136,7 +1134,7 @@ static int isofs_read_level3_size(struct inode * inode)
 				bh = sb_bread(inode->i_sb, block);
 				if (!bh)
 					goto out_noread;
-				memcpy((void *) tmpde + slop, bh->b_data, offset);
+				memcpy((void *)tmpde+slop, bh->b_data, offset);
 			}
 			de = tmpde;
 		}
@@ -1150,12 +1148,11 @@ static int isofs_read_level3_size(struct inode * inode)
 		more_entries = de->flags[-high_sierra] & 0x80;
 
 		i++;
-		if(i > 100)
+		if (i > 100)
 			goto out_toomany;
-	} while(more_entries);
+	} while (more_entries);
 out:
-	if (tmpde)
-		kfree(tmpde);
+	kfree(tmpde);
 	if (bh)
 		brelse(bh);
 	return 0;
@@ -1179,7 +1176,7 @@ out_toomany:
 	goto out;
 }
 
-static void isofs_read_inode(struct inode * inode)
+static void isofs_read_inode(struct inode *inode)
 {
 	struct super_block *sb = inode->i_sb;
 	struct isofs_sb_info *sbi = ISOFS_SB(sb);
@@ -1249,7 +1246,7 @@ static void isofs_read_inode(struct inode * inode)
 	ei->i_format_parm[2] = 0;
 
 	ei->i_section_size = isonum_733 (de->size);
-	if(de->flags[-high_sierra] & 0x80) {
+	if (de->flags[-high_sierra] & 0x80) {
 		if(isofs_read_level3_size(inode)) goto fail;
 	} else {
 		ei->i_next_section_block = 0;
@@ -1336,16 +1333,16 @@ static void isofs_read_inode(struct inode * inode)
 		/* XXX - parse_rock_ridge_inode() had already set i_rdev. */
 		init_special_inode(inode, inode->i_mode, inode->i_rdev);
 
- out:
+out:
 	if (tmpde)
 		kfree(tmpde);
 	if (bh)
 		brelse(bh);
 	return;
 
- out_badread:
+out_badread:
 	printk(KERN_WARNING "ISOFS: unable to read i-node block\n");
- fail:
+fail:
 	make_bad_inode(inode);
 	goto out;
 }
@@ -1394,11 +1391,8 @@ struct inode *isofs_iget(struct super_block *sb,
 
 	hashval = (block << sb->s_blocksize_bits) | offset;
 
-	inode = iget5_locked(sb,
-			     hashval,
-			     &isofs_iget5_test,
-			     &isofs_iget5_set,
-			     &data);
+	inode = iget5_locked(sb, hashval, &isofs_iget5_test,
+			     &isofs_iget5_set, &data);
 
 	if (inode && (inode->i_state & I_NEW)) {
 		sb->s_op->read_inode(inode);
@@ -1408,36 +1402,6 @@ struct inode *isofs_iget(struct super_block *sb,
 	return inode;
 }
 
-#ifdef LEAK_CHECK
-#undef malloc
-#undef free_s
-#undef sb_bread
-#undef brelse
-
-void * leak_check_malloc(unsigned int size){
-  void * tmp;
-  check_malloc++;
-  tmp = kmalloc(size, GFP_KERNEL);
-  return tmp;
-}
-
-void leak_check_free_s(void * obj, int size){
-  check_malloc--;
-  return kfree(obj);
-}
-
-struct buffer_head * leak_check_bread(struct super_block *sb, int block){
-  check_bread++;
-  return sb_bread(sb, block);
-}
-
-void leak_check_brelse(struct buffer_head * bh){
-  check_bread--;
-  return brelse(bh);
-}
-
-#endif
-
 static struct super_block *isofs_get_sb(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *data)
 {
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index 9ce7b51..38c7515 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -47,6 +47,8 @@ struct isofs_sb_info {
 	unsigned char s_nosuid;
 	unsigned char s_nodev;
 	unsigned char s_nocompress;
+	unsigned char s_hide;
+	unsigned char s_showassoc;
 
 	mode_t s_mode;
 	gid_t s_gid;
diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
index 690edf3..e37e82b 100644
--- a/fs/isofs/namei.c
+++ b/fs/isofs/namei.c
@@ -131,14 +131,16 @@ isofs_find_entry(struct inode *dir, struct dentry *dentry,
 		}
 
 		/*
-		 * Skip hidden or associated files unless unhide is set 
+		 * Skip hidden or associated files unless hide or showassoc,
+		 * respectively, is set
 		 */
 		match = 0;
 		if (dlen > 0 &&
-		    (!(de->flags[-sbi->s_high_sierra] & 5)
-		     || sbi->s_unhide == 'y'))
-		{
-			match = (isofs_cmp(dentry,dpnt,dlen) == 0);
+			(sbi->s_hide =='n' ||
+				(!(de->flags[-sbi->s_high_sierra] & 1))) &&
+			(sbi->s_showassoc =='y' ||
+				(!(de->flags[-sbi->s_high_sierra] & 4)))) {
+			match = (isofs_cmp(dentry, dpnt, dlen) == 0);
 		}
 		if (match) {
 			isofs_normalize_block_and_offset(de,
@@ -146,11 +148,11 @@ isofs_find_entry(struct inode *dir, struct dentry *dentry,
 							 &offset_saved);
                         *block_rv = block_saved;
                         *offset_rv = offset_saved;
-			if (bh) brelse(bh);
+			brelse(bh);
 			return 1;
 		}
 	}
-	if (bh) brelse(bh);
+	brelse(bh);
 	return 0;
 }
 
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index 089e79c..4326cb4 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -13,352 +13,542 @@
 #include "isofs.h"
 #include "rock.h"
 
-/* These functions are designed to read the system areas of a directory record
+/*
+ * These functions are designed to read the system areas of a directory record
  * and extract relevant information.  There are different functions provided
  * depending upon what information we need at the time.  One function fills
  * out an inode structure, a second one extracts a filename, a third one
  * returns a symbolic link name, and a fourth one returns the extent number
- * for the file. */
-
-#define SIG(A,B) ((A) | ((B) << 8)) /* isonum_721() */
-
-
-/* This is a way of ensuring that we have something in the system
-   use fields that is compatible with Rock Ridge */
-#define CHECK_SP(FAIL)	       			\
-      if(rr->u.SP.magic[0] != 0xbe) FAIL;	\
-      if(rr->u.SP.magic[1] != 0xef) FAIL;       \
-      ISOFS_SB(inode->i_sb)->s_rock_offset=rr->u.SP.skip;
-/* We define a series of macros because each function must do exactly the
-   same thing in certain places.  We use the macros to ensure that everything
-   is done correctly */
-
-#define CONTINUE_DECLS \
-  int cont_extent = 0, cont_offset = 0, cont_size = 0;   \
-  void *buffer = NULL
-
-#define CHECK_CE	       			\
-      {cont_extent = isonum_733(rr->u.CE.extent); \
-      cont_offset = isonum_733(rr->u.CE.offset); \
-      cont_size = isonum_733(rr->u.CE.size);}
-
-#define SETUP_ROCK_RIDGE(DE,CHR,LEN)	      		      	\
-  {LEN= sizeof(struct iso_directory_record) + DE->name_len[0];	\
-  if(LEN & 1) LEN++;						\
-  CHR = ((unsigned char *) DE) + LEN;				\
-  LEN = *((unsigned char *) DE) - LEN;                          \
-  if (LEN<0) LEN=0;                                             \
-  if (ISOFS_SB(inode->i_sb)->s_rock_offset!=-1)                \
-  {                                                             \
-     LEN-=ISOFS_SB(inode->i_sb)->s_rock_offset;                \
-     CHR+=ISOFS_SB(inode->i_sb)->s_rock_offset;                \
-     if (LEN<0) LEN=0;                                          \
-  }                                                             \
-}                                     
-
-#define MAYBE_CONTINUE(LABEL,DEV) \
-  {if (buffer) { kfree(buffer); buffer = NULL; } \
-  if (cont_extent){ \
-    int block, offset, offset1; \
-    struct buffer_head * pbh; \
-    buffer = kmalloc(cont_size,GFP_KERNEL); \
-    if (!buffer) goto out; \
-    block = cont_extent; \
-    offset = cont_offset; \
-    offset1 = 0; \
-    pbh = sb_bread(DEV->i_sb, block); \
-    if(pbh){       \
-      if (offset > pbh->b_size || offset + cont_size > pbh->b_size){	\
-	brelse(pbh); \
-	goto out; \
-      } \
-      memcpy(buffer + offset1, pbh->b_data + offset, cont_size - offset1); \
-      brelse(pbh); \
-      chr = (unsigned char *) buffer; \
-      len = cont_size; \
-      cont_extent = 0; \
-      cont_size = 0; \
-      cont_offset = 0; \
-      goto LABEL; \
-    }    \
-    printk("Unable to read rock-ridge attributes\n");    \
-  }}
-
-/* return length of name field; 0: not found, -1: to be ignored */
-int get_rock_ridge_filename(struct iso_directory_record * de,
-			    char * retname, struct inode * inode)
+ * for the file.
+ */
+
+#define SIG(A,B) ((A) | ((B) << 8))	/* isonum_721() */
+
+struct rock_state {
+	void *buffer;
+	unsigned char *chr;
+	int len;
+	int cont_size;
+	int cont_extent;
+	int cont_offset;
+	struct inode *inode;
+};
+
+/*
+ * This is a way of ensuring that we have something in the system
+ * use fields that is compatible with Rock Ridge.  Return zero on success.
+ */
+
+static int check_sp(struct rock_ridge *rr, struct inode *inode)
 {
-  int len;
-  unsigned char * chr;
-  CONTINUE_DECLS;
-  int retnamlen = 0, truncate=0;
- 
-  if (!ISOFS_SB(inode->i_sb)->s_rock) return 0;
-  *retname = 0;
-
-  SETUP_ROCK_RIDGE(de, chr, len);
- repeat:
-  {
-    struct rock_ridge * rr;
-    int sig;
-    
-    while (len > 2){ /* There may be one byte for padding somewhere */
-      rr = (struct rock_ridge *) chr;
-      if (rr->len < 3) goto out; /* Something got screwed up here */
-      sig = isonum_721(chr);
-      chr += rr->len; 
-      len -= rr->len;
-      if (len < 0) goto out;	/* corrupted isofs */
-
-      switch(sig){
-      case SIG('R','R'):
-	if((rr->u.RR.flags[0] & RR_NM) == 0) goto out;
-	break;
-      case SIG('S','P'):
-	CHECK_SP(goto out);
-	break;
-      case SIG('C','E'):
-	CHECK_CE;
-	break;
-      case SIG('N','M'):
-	if (truncate) break;
-	if (rr->len < 5) break;
-        /*
-	 * If the flags are 2 or 4, this indicates '.' or '..'.
-	 * We don't want to do anything with this, because it
-	 * screws up the code that calls us.  We don't really
-	 * care anyways, since we can just use the non-RR
-	 * name.
-	 */
-	if (rr->u.NM.flags & 6) {
-	  break;
+	if (rr->u.SP.magic[0] != 0xbe)
+		return -1;
+	if (rr->u.SP.magic[1] != 0xef)
+		return -1;
+	ISOFS_SB(inode->i_sb)->s_rock_offset = rr->u.SP.skip;
+	return 0;
+}
+
+static void setup_rock_ridge(struct iso_directory_record *de,
+			struct inode *inode, struct rock_state *rs)
+{
+	rs->len = sizeof(struct iso_directory_record) + de->name_len[0];
+	if (rs->len & 1)
+		(rs->len)++;
+	rs->chr = (unsigned char *)de + rs->len;
+	rs->len = *((unsigned char *)de) - rs->len;
+	if (rs->len < 0)
+		rs->len = 0;
+
+	if (ISOFS_SB(inode->i_sb)->s_rock_offset != -1) {
+		rs->len -= ISOFS_SB(inode->i_sb)->s_rock_offset;
+		rs->chr += ISOFS_SB(inode->i_sb)->s_rock_offset;
+		if (rs->len < 0)
+			rs->len = 0;
+	}
+}
+
+static void init_rock_state(struct rock_state *rs, struct inode *inode)
+{
+	memset(rs, 0, sizeof(*rs));
+	rs->inode = inode;
+}
+
+/*
+ * Returns 0 if the caller should continue scanning, 1 if the scan must end
+ * and -ve on error.
+ */
+static int rock_continue(struct rock_state *rs)
+{
+	int ret = 1;
+	int blocksize = 1 << rs->inode->i_blkbits;
+	const int min_de_size = offsetof(struct rock_ridge, u);
+
+	kfree(rs->buffer);
+	rs->buffer = NULL;
+
+	if ((unsigned)rs->cont_offset > blocksize - min_de_size ||
+	    (unsigned)rs->cont_size > blocksize ||
+	    (unsigned)(rs->cont_offset + rs->cont_size) > blocksize) {
+		printk(KERN_NOTICE "rock: corrupted directory entry. "
+			"extent=%d, offset=%d, size=%d\n",
+			rs->cont_extent, rs->cont_offset, rs->cont_size);
+		ret = -EIO;
+		goto out;
 	}
 
-	if (rr->u.NM.flags & ~1) {
-	  printk("Unsupported NM flag settings (%d)\n",rr->u.NM.flags);
-	  break;
+	if (rs->cont_extent) {
+		struct buffer_head *bh;
+
+		rs->buffer = kmalloc(rs->cont_size, GFP_KERNEL);
+		if (!rs->buffer) {
+			ret = -ENOMEM;
+			goto out;
+		}
+		ret = -EIO;
+		bh = sb_bread(rs->inode->i_sb, rs->cont_extent);
+		if (bh) {
+			memcpy(rs->buffer, bh->b_data + rs->cont_offset,
+					rs->cont_size);
+			put_bh(bh);
+			rs->chr = rs->buffer;
+			rs->len = rs->cont_size;
+			rs->cont_extent = 0;
+			rs->cont_size = 0;
+			rs->cont_offset = 0;
+			return 0;
+		}
+		printk("Unable to read rock-ridge attributes\n");
+	}
+out:
+	kfree(rs->buffer);
+	rs->buffer = NULL;
+	return ret;
+}
+
+/*
+ * We think there's a record of type `sig' at rs->chr.  Parse the signature
+ * and make sure that there's really room for a record of that type.
+ */
+static int rock_check_overflow(struct rock_state *rs, int sig)
+{
+	int len;
+
+	switch (sig) {
+	case SIG('S', 'P'):
+		len = sizeof(struct SU_SP_s);
+		break;
+	case SIG('C', 'E'):
+		len = sizeof(struct SU_CE_s);
+		break;
+	case SIG('E', 'R'):
+		len = sizeof(struct SU_ER_s);
+		break;
+	case SIG('R', 'R'):
+		len = sizeof(struct RR_RR_s);
+		break;
+	case SIG('P', 'X'):
+		len = sizeof(struct RR_PX_s);
+		break;
+	case SIG('P', 'N'):
+		len = sizeof(struct RR_PN_s);
+		break;
+	case SIG('S', 'L'):
+		len = sizeof(struct RR_SL_s);
+		break;
+	case SIG('N', 'M'):
+		len = sizeof(struct RR_NM_s);
+		break;
+	case SIG('C', 'L'):
+		len = sizeof(struct RR_CL_s);
+		break;
+	case SIG('P', 'L'):
+		len = sizeof(struct RR_PL_s);
+		break;
+	case SIG('T', 'F'):
+		len = sizeof(struct RR_TF_s);
+		break;
+	case SIG('Z', 'F'):
+		len = sizeof(struct RR_ZF_s);
+		break;
+	default:
+		len = 0;
+		break;
 	}
-	if((strlen(retname) + rr->len - 5) >= 254) {
-	  truncate = 1;
-	  break;
+	len += offsetof(struct rock_ridge, u);
+	if (len > rs->len) {
+		printk(KERN_NOTICE "rock: directory entry would overflow "
+				"storage\n");
+		printk(KERN_NOTICE "rock: sig=0x%02x, size=%d, remaining=%d\n",
+				sig, len, rs->len);
+		return -EIO;
+	}
+	return 0;
+}
+
+/*
+ * return length of name field; 0: not found, -1: to be ignored
+ */
+int get_rock_ridge_filename(struct iso_directory_record *de,
+			    char *retname, struct inode *inode)
+{
+	struct rock_state rs;
+	struct rock_ridge *rr;
+	int sig;
+	int retnamlen = 0;
+	int truncate = 0;
+	int ret = 0;
+
+	if (!ISOFS_SB(inode->i_sb)->s_rock)
+		return 0;
+	*retname = 0;
+
+	init_rock_state(&rs, inode);
+	setup_rock_ridge(de, inode, &rs);
+repeat:
+
+	while (rs.len > 2) { /* There may be one byte for padding somewhere */
+		rr = (struct rock_ridge *)rs.chr;
+		if (rr->len < 3)
+			goto out;	/* Something got screwed up here */
+		sig = isonum_721(rs.chr);
+		if (rock_check_overflow(&rs, sig))
+			goto eio;
+		rs.chr += rr->len;
+		rs.len -= rr->len;
+		if (rs.len < 0)
+			goto eio;	/* corrupted isofs */
+
+		switch (sig) {
+		case SIG('R', 'R'):
+			if ((rr->u.RR.flags[0] & RR_NM) == 0)
+				goto out;
+			break;
+		case SIG('S', 'P'):
+			if (check_sp(rr, inode))
+				goto out;
+			break;
+		case SIG('C', 'E'):
+			rs.cont_extent = isonum_733(rr->u.CE.extent);
+			rs.cont_offset = isonum_733(rr->u.CE.offset);
+			rs.cont_size = isonum_733(rr->u.CE.size);
+			break;
+		case SIG('N', 'M'):
+			if (truncate)
+				break;
+			if (rr->len < 5)
+				break;
+			/*
+			 * If the flags are 2 or 4, this indicates '.' or '..'.
+			 * We don't want to do anything with this, because it
+			 * screws up the code that calls us.  We don't really
+			 * care anyways, since we can just use the non-RR
+			 * name.
+			 */
+			if (rr->u.NM.flags & 6)
+				break;
+
+			if (rr->u.NM.flags & ~1) {
+				printk("Unsupported NM flag settings (%d)\n",
+					rr->u.NM.flags);
+				break;
+			}
+			if ((strlen(retname) + rr->len - 5) >= 254) {
+				truncate = 1;
+				break;
+			}
+			strncat(retname, rr->u.NM.name, rr->len - 5);
+			retnamlen += rr->len - 5;
+			break;
+		case SIG('R', 'E'):
+			kfree(rs.buffer);
+			return -1;
+		default:
+			break;
+		}
 	}
-	strncat(retname, rr->u.NM.name, rr->len - 5);
-	retnamlen += rr->len - 5;
-	break;
-      case SIG('R','E'):
-	if (buffer) kfree(buffer);
-	return -1;
-      default:
-	break;
-      }
-    }
-  }
-  MAYBE_CONTINUE(repeat,inode);
-  if (buffer) kfree(buffer);
-  return retnamlen; /* If 0, this file did not have a NM field */
- out:
-  if(buffer) kfree(buffer);
-  return 0;
+	ret = rock_continue(&rs);
+	if (ret == 0)
+		goto repeat;
+	if (ret == 1)
+		return retnamlen; /* If 0, this file did not have a NM field */
+out:
+	kfree(rs.buffer);
+	return ret;
+eio:
+	ret = -EIO;
+	goto out;
 }
 
 static int
 parse_rock_ridge_inode_internal(struct iso_directory_record *de,
 				struct inode *inode, int regard_xa)
 {
-  int len;
-  unsigned char * chr;
-  int symlink_len = 0;
-  CONTINUE_DECLS;
-
-  if (!ISOFS_SB(inode->i_sb)->s_rock) return 0;
-
-  SETUP_ROCK_RIDGE(de, chr, len);
-  if (regard_xa)
-   {
-     chr+=14;
-     len-=14;
-     if (len<0) len=0;
-   }
-   
- repeat:
-  {
-    int cnt, sig;
-    struct inode * reloc;
-    struct rock_ridge * rr;
-    int rootflag;
-    
-    while (len > 2){ /* There may be one byte for padding somewhere */
-      rr = (struct rock_ridge *) chr;
-      if (rr->len < 3) goto out; /* Something got screwed up here */
-      sig = isonum_721(chr);
-      chr += rr->len; 
-      len -= rr->len;
-      if (len < 0) goto out;	/* corrupted isofs */
-      
-      switch(sig){
+	int symlink_len = 0;
+	int cnt, sig;
+	struct inode *reloc;
+	struct rock_ridge *rr;
+	int rootflag;
+	struct rock_state rs;
+	int ret = 0;
+
+	if (!ISOFS_SB(inode->i_sb)->s_rock)
+		return 0;
+
+	init_rock_state(&rs, inode);
+	setup_rock_ridge(de, inode, &rs);
+	if (regard_xa) {
+		rs.chr += 14;
+		rs.len -= 14;
+		if (rs.len < 0)
+			rs.len = 0;
+	}
+
+repeat:
+	while (rs.len > 2) { /* There may be one byte for padding somewhere */
+		rr = (struct rock_ridge *)rs.chr;
+		if (rr->len < 3)
+			goto out;	/* Something got screwed up here */
+		sig = isonum_721(rs.chr);
+		if (rock_check_overflow(&rs, sig))
+			goto eio;
+		rs.chr += rr->len;
+		rs.len -= rr->len;
+		if (rs.len < 0)
+			goto eio;	/* corrupted isofs */
+
+		switch (sig) {
 #ifndef CONFIG_ZISOFS		/* No flag for SF or ZF */
-      case SIG('R','R'):
-	if((rr->u.RR.flags[0] & 
- 	    (RR_PX | RR_TF | RR_SL | RR_CL)) == 0) goto out;
-	break;
+		case SIG('R', 'R'):
+			if ((rr->u.RR.flags[0] &
+			     (RR_PX | RR_TF | RR_SL | RR_CL)) == 0)
+				goto out;
+			break;
 #endif
-      case SIG('S','P'):
-	CHECK_SP(goto out);
-	break;
-      case SIG('C','E'):
-	CHECK_CE;
-	break;
-      case SIG('E','R'):
-	ISOFS_SB(inode->i_sb)->s_rock = 1;
-	printk(KERN_DEBUG "ISO 9660 Extensions: ");
-	{ int p;
-	  for(p=0;p<rr->u.ER.len_id;p++) printk("%c",rr->u.ER.data[p]);
-	}
-	  printk("\n");
-	break;
-      case SIG('P','X'):
-	inode->i_mode  = isonum_733(rr->u.PX.mode);
-	inode->i_nlink = isonum_733(rr->u.PX.n_links);
-	inode->i_uid   = isonum_733(rr->u.PX.uid);
-	inode->i_gid   = isonum_733(rr->u.PX.gid);
-	break;
-      case SIG('P','N'):
-	{ int high, low;
-	  high = isonum_733(rr->u.PN.dev_high);
-	  low = isonum_733(rr->u.PN.dev_low);
-	  /*
-	   * The Rock Ridge standard specifies that if sizeof(dev_t) <= 4,
-	   * then the high field is unused, and the device number is completely
-	   * stored in the low field.  Some writers may ignore this subtlety,
-	   * and as a result we test to see if the entire device number is
-	   * stored in the low field, and use that.
-	   */
-	  if((low & ~0xff) && high == 0) {
-	    inode->i_rdev = MKDEV(low >> 8, low & 0xff);
-	  } else {
-	    inode->i_rdev = MKDEV(high, low);
-	  }
-	}
-	break;
-      case SIG('T','F'):
-	/* Some RRIP writers incorrectly place ctime in the TF_CREATE field.
-	   Try to handle this correctly for either case. */
-	cnt = 0; /* Rock ridge never appears on a High Sierra disk */
-	if(rr->u.TF.flags & TF_CREATE) { 
-	  inode->i_ctime.tv_sec = iso_date(rr->u.TF.times[cnt++].time, 0);
-	  inode->i_ctime.tv_nsec = 0;
-	}
-	if(rr->u.TF.flags & TF_MODIFY) {
-	  inode->i_mtime.tv_sec = iso_date(rr->u.TF.times[cnt++].time, 0);
-	  inode->i_mtime.tv_nsec = 0;
-	}
-	if(rr->u.TF.flags & TF_ACCESS) {
-	  inode->i_atime.tv_sec = iso_date(rr->u.TF.times[cnt++].time, 0);
-	  inode->i_atime.tv_nsec = 0;
-	}
-	if(rr->u.TF.flags & TF_ATTRIBUTES) { 
-	  inode->i_ctime.tv_sec = iso_date(rr->u.TF.times[cnt++].time, 0);
-	  inode->i_ctime.tv_nsec = 0;
-	} 
-	break;
-      case SIG('S','L'):
-	{int slen;
-	 struct SL_component * slp;
-	 struct SL_component * oldslp;
-	 slen = rr->len - 5;
-	 slp = &rr->u.SL.link;
-	 inode->i_size = symlink_len;
-	 while (slen > 1){
-	   rootflag = 0;
-	   switch(slp->flags &~1){
-	   case 0:
-	     inode->i_size += slp->len;
-	     break;
-	   case 2:
-	     inode->i_size += 1;
-	     break;
-	   case 4:
-	     inode->i_size += 2;
-	     break;
-	   case 8:
-	     rootflag = 1;
-	     inode->i_size += 1;
-	     break;
-	   default:
-	     printk("Symlink component flag not implemented\n");
-	   }
-	   slen -= slp->len + 2;
-	   oldslp = slp;
-	   slp = (struct SL_component *) (((char *) slp) + slp->len + 2);
-
-	   if(slen < 2) {
-	     if(    ((rr->u.SL.flags & 1) != 0) 
-		    && ((oldslp->flags & 1) == 0) ) inode->i_size += 1;
-	     break;
-	   }
-
-	   /*
-	    * If this component record isn't continued, then append a '/'.
-	    */
-	   if (!rootflag && (oldslp->flags & 1) == 0)
-		   inode->i_size += 1;
-	 }
-	}
-	symlink_len = inode->i_size;
-	break;
-      case SIG('R','E'):
-	printk(KERN_WARNING "Attempt to read inode for relocated directory\n");
-	goto out;
-      case SIG('C','L'):
-	ISOFS_I(inode)->i_first_extent = isonum_733(rr->u.CL.location);
-	reloc = isofs_iget(inode->i_sb, ISOFS_I(inode)->i_first_extent, 0);
-	if (!reloc)
-		goto out;
-	inode->i_mode = reloc->i_mode;
-	inode->i_nlink = reloc->i_nlink;
-	inode->i_uid = reloc->i_uid;
-	inode->i_gid = reloc->i_gid;
-	inode->i_rdev = reloc->i_rdev;
-	inode->i_size = reloc->i_size;
-	inode->i_blocks = reloc->i_blocks;
-	inode->i_atime = reloc->i_atime;
-	inode->i_ctime = reloc->i_ctime;
-	inode->i_mtime = reloc->i_mtime;
-	iput(reloc);
-	break;
+		case SIG('S', 'P'):
+			if (check_sp(rr, inode))
+				goto out;
+			break;
+		case SIG('C', 'E'):
+			rs.cont_extent = isonum_733(rr->u.CE.extent);
+			rs.cont_offset = isonum_733(rr->u.CE.offset);
+			rs.cont_size = isonum_733(rr->u.CE.size);
+			break;
+		case SIG('E', 'R'):
+			ISOFS_SB(inode->i_sb)->s_rock = 1;
+			printk(KERN_DEBUG "ISO 9660 Extensions: ");
+			{
+				int p;
+				for (p = 0; p < rr->u.ER.len_id; p++)
+					printk("%c", rr->u.ER.data[p]);
+			}
+			printk("\n");
+			break;
+		case SIG('P', 'X'):
+			inode->i_mode = isonum_733(rr->u.PX.mode);
+			inode->i_nlink = isonum_733(rr->u.PX.n_links);
+			inode->i_uid = isonum_733(rr->u.PX.uid);
+			inode->i_gid = isonum_733(rr->u.PX.gid);
+			break;
+		case SIG('P', 'N'):
+			{
+				int high, low;
+				high = isonum_733(rr->u.PN.dev_high);
+				low = isonum_733(rr->u.PN.dev_low);
+				/*
+				 * The Rock Ridge standard specifies that if
+				 * sizeof(dev_t) <= 4, then the high field is
+				 * unused, and the device number is completely
+				 * stored in the low field.  Some writers may
+				 * ignore this subtlety,
+				 * and as a result we test to see if the entire
+				 * device number is
+				 * stored in the low field, and use that.
+				 */
+				if ((low & ~0xff) && high == 0) {
+					inode->i_rdev =
+					    MKDEV(low >> 8, low & 0xff);
+				} else {
+					inode->i_rdev =
+					    MKDEV(high, low);
+				}
+			}
+			break;
+		case SIG('T', 'F'):
+			/*
+			 * Some RRIP writers incorrectly place ctime in the
+			 * TF_CREATE field. Try to handle this correctly for
+			 * either case.
+			 */
+			/* Rock ridge never appears on a High Sierra disk */
+			cnt = 0;
+			if (rr->u.TF.flags & TF_CREATE) {
+				inode->i_ctime.tv_sec =
+				    iso_date(rr->u.TF.times[cnt++].time,
+					     0);
+				inode->i_ctime.tv_nsec = 0;
+			}
+			if (rr->u.TF.flags & TF_MODIFY) {
+				inode->i_mtime.tv_sec =
+				    iso_date(rr->u.TF.times[cnt++].time,
+					     0);
+				inode->i_mtime.tv_nsec = 0;
+			}
+			if (rr->u.TF.flags & TF_ACCESS) {
+				inode->i_atime.tv_sec =
+				    iso_date(rr->u.TF.times[cnt++].time,
+					     0);
+				inode->i_atime.tv_nsec = 0;
+			}
+			if (rr->u.TF.flags & TF_ATTRIBUTES) {
+				inode->i_ctime.tv_sec =
+				    iso_date(rr->u.TF.times[cnt++].time,
+					     0);
+				inode->i_ctime.tv_nsec = 0;
+			}
+			break;
+		case SIG('S', 'L'):
+			{
+				int slen;
+				struct SL_component *slp;
+				struct SL_component *oldslp;
+				slen = rr->len - 5;
+				slp = &rr->u.SL.link;
+				inode->i_size = symlink_len;
+				while (slen > 1) {
+					rootflag = 0;
+					switch (slp->flags & ~1) {
+					case 0:
+						inode->i_size +=
+						    slp->len;
+						break;
+					case 2:
+						inode->i_size += 1;
+						break;
+					case 4:
+						inode->i_size += 2;
+						break;
+					case 8:
+						rootflag = 1;
+						inode->i_size += 1;
+						break;
+					default:
+						printk("Symlink component flag "
+							"not implemented\n");
+					}
+					slen -= slp->len + 2;
+					oldslp = slp;
+					slp = (struct SL_component *)
+						(((char *)slp) + slp->len + 2);
+
+					if (slen < 2) {
+						if (((rr->u.SL.
+						      flags & 1) != 0)
+						    &&
+						    ((oldslp->
+						      flags & 1) == 0))
+							inode->i_size +=
+							    1;
+						break;
+					}
+
+					/*
+					 * If this component record isn't
+					 * continued, then append a '/'.
+					 */
+					if (!rootflag
+					    && (oldslp->flags & 1) == 0)
+						inode->i_size += 1;
+				}
+			}
+			symlink_len = inode->i_size;
+			break;
+		case SIG('R', 'E'):
+			printk(KERN_WARNING "Attempt to read inode for "
+					"relocated directory\n");
+			goto out;
+		case SIG('C', 'L'):
+			ISOFS_I(inode)->i_first_extent =
+			    isonum_733(rr->u.CL.location);
+			reloc =
+			    isofs_iget(inode->i_sb,
+				       ISOFS_I(inode)->i_first_extent,
+				       0);
+			if (!reloc)
+				goto out;
+			inode->i_mode = reloc->i_mode;
+			inode->i_nlink = reloc->i_nlink;
+			inode->i_uid = reloc->i_uid;
+			inode->i_gid = reloc->i_gid;
+			inode->i_rdev = reloc->i_rdev;
+			inode->i_size = reloc->i_size;
+			inode->i_blocks = reloc->i_blocks;
+			inode->i_atime = reloc->i_atime;
+			inode->i_ctime = reloc->i_ctime;
+			inode->i_mtime = reloc->i_mtime;
+			iput(reloc);
+			break;
 #ifdef CONFIG_ZISOFS
-      case SIG('Z','F'):
-	      if ( !ISOFS_SB(inode->i_sb)->s_nocompress ) {
-		      int algo;
-		      algo = isonum_721(rr->u.ZF.algorithm);
-		      if ( algo == SIG('p','z') ) {
-			      int block_shift = isonum_711(&rr->u.ZF.parms[1]);
-			      if ( block_shift < PAGE_CACHE_SHIFT || block_shift > 17 ) {
-				      printk(KERN_WARNING "isofs: Can't handle ZF block size of 2^%d\n", block_shift);
-			      } else {
-				/* Note: we don't change i_blocks here */
-				      ISOFS_I(inode)->i_file_format = isofs_file_compressed;
-				/* Parameters to compression algorithm (header size, block size) */
-				      ISOFS_I(inode)->i_format_parm[0] = isonum_711(&rr->u.ZF.parms[0]);
-				      ISOFS_I(inode)->i_format_parm[1] = isonum_711(&rr->u.ZF.parms[1]);
-				      inode->i_size = isonum_733(rr->u.ZF.real_size);
-			      }
-		      } else {
-			      printk(KERN_WARNING "isofs: Unknown ZF compression algorithm: %c%c\n",
-				     rr->u.ZF.algorithm[0], rr->u.ZF.algorithm[1]);
-		      }
-	      }
-	      break;
+		case SIG('Z', 'F'): {
+			int algo;
+
+			if (ISOFS_SB(inode->i_sb)->s_nocompress)
+				break;
+			algo = isonum_721(rr->u.ZF.algorithm);
+			if (algo == SIG('p', 'z')) {
+				int block_shift =
+					isonum_711(&rr->u.ZF.parms[1]);
+				if (block_shift < PAGE_CACHE_SHIFT
+						|| block_shift > 17) {
+					printk(KERN_WARNING "isofs: "
+						"Can't handle ZF block "
+						"size of 2^%d\n",
+						block_shift);
+				} else {
+					/*
+					 * Note: we don't change
+					 * i_blocks here
+					 */
+					ISOFS_I(inode)->i_file_format =
+						isofs_file_compressed;
+					/*
+					 * Parameters to compression
+					 * algorithm (header size,
+					 * block size)
+					 */
+					ISOFS_I(inode)->i_format_parm[0] =
+						isonum_711(&rr->u.ZF.parms[0]);
+					ISOFS_I(inode)->i_format_parm[1] =
+						isonum_711(&rr->u.ZF.parms[1]);
+					inode->i_size =
+					    isonum_733(rr->u.ZF.
+						       real_size);
+				}
+			} else {
+				printk(KERN_WARNING
+				       "isofs: Unknown ZF compression "
+						"algorithm: %c%c\n",
+				       rr->u.ZF.algorithm[0],
+				       rr->u.ZF.algorithm[1]);
+			}
+			break;
+		}
 #endif
-      default:
-	break;
-      }
-    }
-  }
-  MAYBE_CONTINUE(repeat,inode);
- out:
-  if(buffer) kfree(buffer);
-  return 0;
+		default:
+			break;
+		}
+	}
+	ret = rock_continue(&rs);
+	if (ret == 0)
+		goto repeat;
+	if (ret == 1)
+		ret = 0;
+out:
+	kfree(rs.buffer);
+	return ret;
+eio:
+	ret = -EIO;
+	goto out;
 }
 
 static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
@@ -376,32 +566,32 @@ static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
 			if (slp->len > plimit - rpnt)
 				return NULL;
 			memcpy(rpnt, slp->text, slp->len);
-			rpnt+=slp->len;
+			rpnt += slp->len;
 			break;
 		case 2:
 			if (rpnt >= plimit)
 				return NULL;
-			*rpnt++='.';
+			*rpnt++ = '.';
 			break;
 		case 4:
 			if (2 > plimit - rpnt)
 				return NULL;
-			*rpnt++='.';
-			*rpnt++='.';
+			*rpnt++ = '.';
+			*rpnt++ = '.';
 			break;
 		case 8:
 			if (rpnt >= plimit)
 				return NULL;
 			rootflag = 1;
-			*rpnt++='/';
+			*rpnt++ = '/';
 			break;
 		default:
 			printk("Symlink component flag not implemented (%d)\n",
-			     slp->flags);
+			       slp->flags);
 		}
 		slen -= slp->len + 2;
 		oldslp = slp;
-		slp = (struct SL_component *) ((char *) slp + slp->len + 2);
+		slp = (struct SL_component *)((char *)slp + slp->len + 2);
 
 		if (slen < 2) {
 			/*
@@ -412,7 +602,7 @@ static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
 			    !(oldslp->flags & 1)) {
 				if (rpnt >= plimit)
 					return NULL;
-				*rpnt++='/';
+				*rpnt++ = '/';
 			}
 			break;
 		}
@@ -423,59 +613,61 @@ static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
 		if (!rootflag && !(oldslp->flags & 1)) {
 			if (rpnt >= plimit)
 				return NULL;
-			*rpnt++='/';
+			*rpnt++ = '/';
 		}
 	}
 	return rpnt;
 }
 
-int parse_rock_ridge_inode(struct iso_directory_record * de,
-			   struct inode * inode)
+int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode)
 {
-   int result=parse_rock_ridge_inode_internal(de,inode,0);
-   /* if rockridge flag was reset and we didn't look for attributes
-    * behind eventual XA attributes, have a look there */
-   if ((ISOFS_SB(inode->i_sb)->s_rock_offset==-1)
-       &&(ISOFS_SB(inode->i_sb)->s_rock==2))
-     {
-	result=parse_rock_ridge_inode_internal(de,inode,14);
-     }
-   return result;
-}
+	int result = parse_rock_ridge_inode_internal(de, inode, 0);
 
-/* readpage() for symlinks: reads symlink contents into the page and either
-   makes it uptodate and returns 0 or returns error (-EIO) */
+	/*
+	 * if rockridge flag was reset and we didn't look for attributes
+	 * behind eventual XA attributes, have a look there
+	 */
+	if ((ISOFS_SB(inode->i_sb)->s_rock_offset == -1)
+	    && (ISOFS_SB(inode->i_sb)->s_rock == 2)) {
+		result = parse_rock_ridge_inode_internal(de, inode, 14);
+	}
+	return result;
+}
 
+/*
+ * readpage() for symlinks: reads symlink contents into the page and either
+ * makes it uptodate and returns 0 or returns error (-EIO)
+ */
 static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
 {
 	struct inode *inode = page->mapping->host;
-        struct iso_inode_info *ei = ISOFS_I(inode);
+	struct iso_inode_info *ei = ISOFS_I(inode);
 	char *link = kmap(page);
 	unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
 	struct buffer_head *bh;
 	char *rpnt = link;
 	unsigned char *pnt;
-	struct iso_directory_record *raw_inode;
-	CONTINUE_DECLS;
+	struct iso_directory_record *raw_de;
 	unsigned long block, offset;
 	int sig;
-	int len;
-	unsigned char *chr;
 	struct rock_ridge *rr;
+	struct rock_state rs;
+	int ret;
 
 	if (!ISOFS_SB(inode->i_sb)->s_rock)
 		goto error;
 
+	init_rock_state(&rs, inode);
 	block = ei->i_iget5_block;
 	lock_kernel();
 	bh = sb_bread(inode->i_sb, block);
 	if (!bh)
 		goto out_noread;
 
-        offset = ei->i_iget5_offset;
-	pnt = (unsigned char *) bh->b_data + offset;
+	offset = ei->i_iget5_offset;
+	pnt = (unsigned char *)bh->b_data + offset;
 
-	raw_inode = (struct iso_directory_record *) pnt;
+	raw_de = (struct iso_directory_record *)pnt;
 
 	/*
 	 * If we go past the end of the buffer, there is some sort of error.
@@ -483,20 +675,24 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
 	if (offset + *pnt > bufsize)
 		goto out_bad_span;
 
-	/* Now test for possible Rock Ridge extensions which will override
-	   some of these numbers in the inode structure. */
+	/*
+	 * Now test for possible Rock Ridge extensions which will override
+	 * some of these numbers in the inode structure.
+	 */
 
-	SETUP_ROCK_RIDGE(raw_inode, chr, len);
+	setup_rock_ridge(raw_de, inode, &rs);
 
-      repeat:
-	while (len > 2) { /* There may be one byte for padding somewhere */
-		rr = (struct rock_ridge *) chr;
+repeat:
+	while (rs.len > 2) { /* There may be one byte for padding somewhere */
+		rr = (struct rock_ridge *)rs.chr;
 		if (rr->len < 3)
 			goto out;	/* Something got screwed up here */
-		sig = isonum_721(chr);
-		chr += rr->len;
-		len -= rr->len;
-		if (len < 0)
+		sig = isonum_721(rs.chr);
+		if (rock_check_overflow(&rs, sig))
+			goto out;
+		rs.chr += rr->len;
+		rs.len -= rr->len;
+		if (rs.len < 0)
 			goto out;	/* corrupted isofs */
 
 		switch (sig) {
@@ -505,7 +701,8 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
 				goto out;
 			break;
 		case SIG('S', 'P'):
-			CHECK_SP(goto out);
+			if (check_sp(rr, inode))
+				goto out;
 			break;
 		case SIG('S', 'L'):
 			rpnt = get_symlink_chunk(rpnt, rr,
@@ -515,14 +712,18 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
 			break;
 		case SIG('C', 'E'):
 			/* This tells is if there is a continuation record */
-			CHECK_CE;
+			rs.cont_extent = isonum_733(rr->u.CE.extent);
+			rs.cont_offset = isonum_733(rr->u.CE.offset);
+			rs.cont_size = isonum_733(rr->u.CE.size);
 		default:
 			break;
 		}
 	}
-	MAYBE_CONTINUE(repeat, inode);
-	if (buffer)
-		kfree(buffer);
+	ret = rock_continue(&rs);
+	if (ret == 0)
+		goto repeat;
+	if (ret < 0)
+		goto fail;
 
 	if (rpnt == link)
 		goto fail;
@@ -535,19 +736,18 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
 	return 0;
 
 	/* error exit from macro */
-      out:
-	if (buffer)
-		kfree(buffer);
+out:
+	kfree(rs.buffer);
 	goto fail;
-      out_noread:
+out_noread:
 	printk("unable to read i-node block");
 	goto fail;
-      out_bad_span:
+out_bad_span:
 	printk("symlink spans iso9660 blocks\n");
-      fail:
+fail:
 	brelse(bh);
 	unlock_kernel();
-      error:
+error:
 	SetPageError(page);
 	kunmap(page);
 	unlock_page(page);
@@ -555,5 +755,5 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
 }
 
 struct address_space_operations isofs_symlink_aops = {
-	.readpage	= rock_ridge_symlink_readpage
+	.readpage = rock_ridge_symlink_readpage
 };
diff --git a/fs/isofs/rock.h b/fs/isofs/rock.h
index deaf5c8..ed09e2b 100644
--- a/fs/isofs/rock.h
+++ b/fs/isofs/rock.h
@@ -1,85 +1,88 @@
-/* These structs are used by the system-use-sharing protocol, in which the
-   Rock Ridge extensions are embedded.  It is quite possible that other
-   extensions are present on the disk, and this is fine as long as they
-   all use SUSP */
-
-struct SU_SP{
-  unsigned char magic[2];
-  unsigned char skip;
-} __attribute__((packed));
-
-struct SU_CE{
-  char extent[8];
-  char offset[8];
-  char size[8];
+/*
+ * These structs are used by the system-use-sharing protocol, in which the
+ * Rock Ridge extensions are embedded.  It is quite possible that other
+ * extensions are present on the disk, and this is fine as long as they
+ * all use SUSP
+ */
+
+struct SU_SP_s {
+	unsigned char magic[2];
+	unsigned char skip;
+} __attribute__ ((packed));
+
+struct SU_CE_s {
+	char extent[8];
+	char offset[8];
+	char size[8];
 };
 
-struct SU_ER{
-  unsigned char len_id;
-  unsigned char len_des;
-  unsigned char len_src;
-  unsigned char ext_ver;
-  char data[0];
-} __attribute__((packed));
-
-struct RR_RR{
-  char flags[1];
-} __attribute__((packed));
-
-struct RR_PX{
-  char mode[8];
-  char n_links[8];
-  char uid[8];
-  char gid[8];
+struct SU_ER_s {
+	unsigned char len_id;
+	unsigned char len_des;
+	unsigned char len_src;
+	unsigned char ext_ver;
+	char data[0];
+} __attribute__ ((packed));
+
+struct RR_RR_s {
+	char flags[1];
+} __attribute__ ((packed));
+
+struct RR_PX_s {
+	char mode[8];
+	char n_links[8];
+	char uid[8];
+	char gid[8];
 };
 
-struct RR_PN{
-  char dev_high[8];
-  char dev_low[8];
+struct RR_PN_s {
+	char dev_high[8];
+	char dev_low[8];
 };
 
+struct SL_component {
+	unsigned char flags;
+	unsigned char len;
+	char text[0];
+} __attribute__ ((packed));
 
-struct SL_component{
-  unsigned char flags;
-  unsigned char len;
-  char text[0];
-} __attribute__((packed));
+struct RR_SL_s {
+	unsigned char flags;
+	struct SL_component link;
+} __attribute__ ((packed));
 
-struct RR_SL{
-  unsigned char flags;
-  struct SL_component link;
-} __attribute__((packed));
+struct RR_NM_s {
+	unsigned char flags;
+	char name[0];
+} __attribute__ ((packed));
 
-struct RR_NM{
-  unsigned char flags;
-  char name[0];
-} __attribute__((packed));
-
-struct RR_CL{
-  char location[8];
+struct RR_CL_s {
+	char location[8];
 };
 
-struct RR_PL{
-  char location[8];
+struct RR_PL_s {
+	char location[8];
 };
 
-struct stamp{
-  char time[7];
-} __attribute__((packed));
+struct stamp {
+	char time[7];
+} __attribute__ ((packed));
 
-struct RR_TF{
-  char flags;
-  struct stamp times[0];  /* Variable number of these beasts */
-} __attribute__((packed));
+struct RR_TF_s {
+	char flags;
+	struct stamp times[0];	/* Variable number of these beasts */
+} __attribute__ ((packed));
 
 /* Linux-specific extension for transparent decompression */
-struct RR_ZF{
-  char algorithm[2];
-  char parms[2];
-  char real_size[8];
+struct RR_ZF_s {
+	char algorithm[2];
+	char parms[2];
+	char real_size[8];
 };
 
-/* These are the bits and their meanings for flags in the TF structure. */
+/*
+ * These are the bits and their meanings for flags in the TF structure.
+ */
 #define TF_CREATE 1
 #define TF_MODIFY 2
 #define TF_ACCESS 4
@@ -89,31 +92,31 @@ struct RR_ZF{
 #define TF_EFFECTIVE 64
 #define TF_LONG_FORM 128
 
-struct rock_ridge{
-  char signature[2];
-  unsigned char len;
-  unsigned char version;
-  union{
-    struct SU_SP SP;
-    struct SU_CE CE;
-    struct SU_ER ER;
-    struct RR_RR RR;
-    struct RR_PX PX;
-    struct RR_PN PN;
-    struct RR_SL SL;
-    struct RR_NM NM;
-    struct RR_CL CL;
-    struct RR_PL PL;
-    struct RR_TF TF;
-    struct RR_ZF ZF;
-  } u;
+struct rock_ridge {
+	char signature[2];
+	unsigned char len;
+	unsigned char version;
+	union {
+		struct SU_SP_s SP;
+		struct SU_CE_s CE;
+		struct SU_ER_s ER;
+		struct RR_RR_s RR;
+		struct RR_PX_s PX;
+		struct RR_PN_s PN;
+		struct RR_SL_s SL;
+		struct RR_NM_s NM;
+		struct RR_CL_s CL;
+		struct RR_PL_s PL;
+		struct RR_TF_s TF;
+		struct RR_ZF_s ZF;
+	} u;
 };
 
-#define RR_PX 1   /* POSIX attributes */
-#define RR_PN 2   /* POSIX devices */
-#define RR_SL 4   /* Symbolic link */
-#define RR_NM 8   /* Alternate Name */
-#define RR_CL 16  /* Child link */
-#define RR_PL 32  /* Parent link */
-#define RR_RE 64  /* Relocation directory */
-#define RR_TF 128 /* Timestamps */
+#define RR_PX 1			/* POSIX attributes */
+#define RR_PN 2			/* POSIX devices */
+#define RR_SL 4			/* Symbolic link */
+#define RR_NM 8			/* Alternate Name */
+#define RR_CL 16		/* Child link */
+#define RR_PL 32		/* Parent link */
+#define RR_RE 64		/* Relocation directory */
+#define RR_TF 128		/* Timestamps */
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 8d2a9ab..30a2bf9 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -70,8 +70,7 @@ static struct posix_acl *jfs_get_acl(struct inode *inode, int type)
 		if (!IS_ERR(acl))
 			*p_acl = posix_acl_dup(acl);
 	}
-	if (value)
-		kfree(value);
+	kfree(value);
 	return acl;
 }
 
@@ -112,8 +111,7 @@ static int jfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 	}
 	rc = __jfs_setxattr(inode, ea_name, value, size, 0);
 out:
-	if (value)
-		kfree(value);
+	kfree(value);
 
 	if (!rc) {
 		if (*p_acl && (*p_acl != JFS_ACL_NOT_CACHED))
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index a87b06f..c2c19c9 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -1,6 +1,6 @@
 /*
- *   Copyright (c) International Business Machines Corp., 2000-2002
- *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *   Copyright (C) International Business Machines Corp., 2000-2002
+ *   Portions Copyright (C) Christoph Hellwig, 2001-2002
  *
  *   This program is free software;  you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -19,16 +19,13 @@
 
 #include <linux/fs.h>
 #include "jfs_incore.h"
+#include "jfs_inode.h"
 #include "jfs_dmap.h"
 #include "jfs_txnmgr.h"
 #include "jfs_xattr.h"
 #include "jfs_acl.h"
 #include "jfs_debug.h"
 
-
-extern int jfs_commit_inode(struct inode *, int);
-extern void jfs_truncate(struct inode *);
-
 int jfs_fsync(struct file *file, struct dentry *dentry, int datasync)
 {
 	struct inode *inode = dentry->d_inode;
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 24a6891..2137138 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -23,6 +23,7 @@
 #include <linux/pagemap.h>
 #include <linux/quotaops.h>
 #include "jfs_incore.h"
+#include "jfs_inode.h"
 #include "jfs_filsys.h"
 #include "jfs_imap.h"
 #include "jfs_extent.h"
@@ -30,14 +31,6 @@
 #include "jfs_debug.h"
 
 
-extern struct inode_operations jfs_dir_inode_operations;
-extern struct inode_operations jfs_file_inode_operations;
-extern struct inode_operations jfs_symlink_inode_operations;
-extern struct file_operations jfs_dir_operations;
-extern struct file_operations jfs_file_operations;
-struct address_space_operations jfs_aops;
-extern int freeZeroLink(struct inode *);
-
 void jfs_read_inode(struct inode *inode)
 {
 	if (diRead(inode)) { 
@@ -136,7 +129,7 @@ void jfs_delete_inode(struct inode *inode)
 	jfs_info("In jfs_delete_inode, inode = 0x%p", inode);
 
 	if (test_cflag(COMMIT_Freewmap, inode))
-		freeZeroLink(inode);
+		jfs_free_zero_link(inode);
 
 	diFree(inode);
 
diff --git a/fs/jfs/jfs_debug.c b/fs/jfs/jfs_debug.c
index 91a0a88..4caea6b 100644
--- a/fs/jfs/jfs_debug.c
+++ b/fs/jfs/jfs_debug.c
@@ -58,8 +58,6 @@ void dump_mem(char *label, void *data, int length)
 
 static struct proc_dir_entry *base;
 #ifdef CONFIG_JFS_DEBUG
-extern read_proc_t jfs_txanchor_read;
-
 static int loglevel_read(char *page, char **start, off_t off,
 			 int count, int *eof, void *data)
 {
@@ -97,14 +95,6 @@ static int loglevel_write(struct file *file, const char __user *buffer,
 }
 #endif
 
-
-#ifdef CONFIG_JFS_STATISTICS
-extern read_proc_t jfs_lmstats_read;
-extern read_proc_t jfs_txstats_read;
-extern read_proc_t jfs_xtstat_read;
-extern read_proc_t jfs_mpstat_read;
-#endif
-
 static struct {
 	const char	*name;
 	read_proc_t	*read_fn;
diff --git a/fs/jfs/jfs_debug.h b/fs/jfs/jfs_debug.h
index a38079a..ddffbbd 100644
--- a/fs/jfs/jfs_debug.h
+++ b/fs/jfs/jfs_debug.h
@@ -1,6 +1,6 @@
 /*
- *   Copyright (c) International Business Machines Corp., 2000-2002
- *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *   Copyright (C) International Business Machines Corp., 2000-2002
+ *   Portions Copyright (C) Christoph Hellwig, 2001-2002
  *
  *   This program is free software;  you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -31,7 +31,9 @@
  * CONFIG_JFS_DEBUG or CONFIG_JFS_STATISTICS is defined
  */
 #if defined(CONFIG_PROC_FS) && (defined(CONFIG_JFS_DEBUG) || defined(CONFIG_JFS_STATISTICS))
-	#define PROC_FS_JFS
+#define PROC_FS_JFS
+extern void jfs_proc_init(void);
+extern void jfs_proc_clean(void);
 #endif
 
 /*
@@ -65,8 +67,8 @@
 
 extern int jfsloglevel;
 
-/* dump memory contents */
 extern void dump_mem(char *label, void *data, int length);
+extern int jfs_txanchor_read(char *, char **, off_t, int, int *, void *);
 
 /* information message: e.g., configuration, major event */
 #define jfs_info(fmt, arg...) do {			\
@@ -110,6 +112,11 @@ extern void dump_mem(char *label, void *data, int length);
  *	----------
  */
 #ifdef	CONFIG_JFS_STATISTICS
+extern int jfs_lmstats_read(char *, char **, off_t, int, int *, void *);
+extern int jfs_txstats_read(char *, char **, off_t, int, int *, void *);
+extern int jfs_mpstat_read(char *, char **, off_t, int, int *, void *);
+extern int jfs_xtstat_read(char *, char **, off_t, int, int *, void *);
+
 #define	INCREMENT(x)		((x)++)
 #define	DECREMENT(x)		((x)--)
 #define	HIGHWATERMARK(x,y)	((x) = max((x), (y)))
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index 69007fd..cced2fe 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -272,7 +272,6 @@ int dbMount(struct inode *ipbmap)
 int dbUnmount(struct inode *ipbmap, int mounterror)
 {
 	struct bmap *bmp = JFS_SBI(ipbmap->i_sb)->bmap;
-	int i;
 
 	if (!(mounterror || isReadOnly(ipbmap)))
 		dbSync(ipbmap);
@@ -282,14 +281,6 @@ int dbUnmount(struct inode *ipbmap, int mounterror)
 	 */
 	truncate_inode_pages(ipbmap->i_mapping, 0);
 
-	/*
-	 * Sanity Check
-	 */
-	for (i = 0; i < bmp->db_numag; i++)
-		if (atomic_read(&bmp->db_active[i]))
-			printk(KERN_ERR "dbUnmount: db_active[%d] = %d\n",
-			       i, atomic_read(&bmp->db_active[i]));
-
 	/* free the memory for the in-memory bmap. */
 	kfree(bmp);
 
diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c
index ac41f72..8676aee 100644
--- a/fs/jfs/jfs_dtree.c
+++ b/fs/jfs/jfs_dtree.c
@@ -2931,6 +2931,9 @@ static void add_missing_indices(struct inode *inode, s64 bn)
 	ASSERT(p->header.flag & BT_LEAF);
 
 	tlck = txLock(tid, inode, mp, tlckDTREE | tlckENTRY);
+	if (BT_IS_ROOT(mp))
+		tlck->type |= tlckBTROOT;
+
 	dtlck = (struct dt_lock *) &tlck->lock;
 
 	stbl = DT_GETSTBL(p);
diff --git a/fs/jfs/jfs_extent.c b/fs/jfs/jfs_extent.c
index 1953acb..4879603 100644
--- a/fs/jfs/jfs_extent.c
+++ b/fs/jfs/jfs_extent.c
@@ -19,6 +19,7 @@
 #include <linux/fs.h>
 #include <linux/quotaops.h>
 #include "jfs_incore.h"
+#include "jfs_inode.h"
 #include "jfs_superblock.h"
 #include "jfs_dmap.h"
 #include "jfs_extent.h"
@@ -33,12 +34,6 @@ static int extBrealloc(struct inode *, s64, s64, s64 *, s64 *);
 #endif
 static s64 extRoundDown(s64 nb);
 
-/*
- * external references
- */
-extern int jfs_commit_inode(struct inode *, int);
-
-
 #define DPD(a)          (printk("(a): %d\n",(a)))
 #define DPC(a)          (printk("(a): %c\n",(a)))
 #define DPL1(a)					\
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index 7acff2c..971af29 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -47,6 +47,7 @@
 #include <linux/quotaops.h>
 
 #include "jfs_incore.h"
+#include "jfs_inode.h"
 #include "jfs_filsys.h"
 #include "jfs_dinode.h"
 #include "jfs_dmap.h"
@@ -69,11 +70,6 @@
 #define AG_UNLOCK(imap,agno)		up(&imap->im_aglock[agno])
 
 /*
- * external references
- */
-extern struct address_space_operations jfs_aops;
-
-/*
  * forward references
  */
 static int diAllocAG(struct inomap *, int, boolean_t, struct inode *);
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index 84f2459..2af5efb 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -19,6 +19,7 @@
 #include <linux/fs.h>
 #include <linux/quotaops.h>
 #include "jfs_incore.h"
+#include "jfs_inode.h"
 #include "jfs_filsys.h"
 #include "jfs_imap.h"
 #include "jfs_dinode.h"
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index 3df91fb..b54bac5 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -1,5 +1,5 @@
 /*
- *   Copyright (c) International Business Machines Corp., 2000-2001
+ *   Copyright (C) International Business Machines Corp., 2000-2001
  *
  *   This program is free software;  you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -19,5 +19,22 @@
 #define _H_JFS_INODE
 
 extern struct inode *ialloc(struct inode *, umode_t);
+extern int jfs_fsync(struct file *, struct dentry *, int);
+extern void jfs_read_inode(struct inode *);
+extern int jfs_commit_inode(struct inode *, int);
+extern int jfs_write_inode(struct inode*, int);
+extern void jfs_delete_inode(struct inode *);
+extern void jfs_dirty_inode(struct inode *);
+extern void jfs_truncate(struct inode *);
+extern void jfs_truncate_nolock(struct inode *, loff_t);
+extern void jfs_free_zero_link(struct inode *);
+extern struct dentry *jfs_get_parent(struct dentry *dentry);
 
+extern struct address_space_operations jfs_aops;
+extern struct inode_operations jfs_dir_inode_operations;
+extern struct file_operations jfs_dir_operations;
+extern struct inode_operations jfs_file_inode_operations;
+extern struct file_operations jfs_file_operations;
+extern struct inode_operations jfs_symlink_inode_operations;
+extern struct dentry_operations jfs_ci_dentry_operations;
 #endif				/* _H_JFS_INODE */
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index dfa1200..7c8387e 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -71,6 +71,7 @@
 #include "jfs_incore.h"
 #include "jfs_filsys.h"
 #include "jfs_metapage.h"
+#include "jfs_superblock.h"
 #include "jfs_txnmgr.h"
 #include "jfs_debug.h"
 
@@ -167,14 +168,6 @@ static struct jfs_log *dummy_log = NULL;
 static DECLARE_MUTEX(jfs_log_sem);
 
 /*
- * external references
- */
-extern void txLazyUnlock(struct tblock * tblk);
-extern int jfs_stop_threads;
-extern struct completion jfsIOwait;
-extern int jfs_tlocks_low;
-
-/*
  * forward references
  */
 static int lmWriteRecord(struct jfs_log * log, struct tblock * tblk,
@@ -1624,6 +1617,8 @@ void jfs_flush_journal(struct jfs_log *log, int wait)
 		}
 	}
 	assert(list_empty(&log->cqueue));
+
+#ifdef CONFIG_JFS_DEBUG
 	if (!list_empty(&log->synclist)) {
 		struct logsyncblk *lp;
 
@@ -1638,9 +1633,8 @@ void jfs_flush_journal(struct jfs_log *log, int wait)
 				dump_mem("orphan tblock", lp,
 					 sizeof(struct tblock));
 		}
-//		current->state = TASK_INTERRUPTIBLE;
-//		schedule();
 	}
+#endif
 	//assert(list_empty(&log->synclist));
 	clear_bit(log_FLUSH, &log->flag);
 }
diff --git a/fs/jfs/jfs_logmgr.h b/fs/jfs/jfs_logmgr.h
index 51291fb..747114c 100644
--- a/fs/jfs/jfs_logmgr.h
+++ b/fs/jfs/jfs_logmgr.h
@@ -507,6 +507,8 @@ extern int lmLogClose(struct super_block *sb);
 extern int lmLogShutdown(struct jfs_log * log);
 extern int lmLogInit(struct jfs_log * log);
 extern int lmLogFormat(struct jfs_log *log, s64 logAddress, int logSize);
+extern int lmGroupCommit(struct jfs_log *, struct tblock *);
+extern int jfsIOWait(void *);
 extern void jfs_flush_journal(struct jfs_log * log, int wait);
 extern void jfs_syncpt(struct jfs_log *log);
 
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 41bf078..6c5485d 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -198,7 +198,7 @@ static void init_once(void *foo, kmem_cache_t *cachep, unsigned long flags)
 	}
 }
 
-static inline struct metapage *alloc_metapage(int gfp_mask)
+static inline struct metapage *alloc_metapage(unsigned int gfp_mask)
 {
 	return mempool_alloc(metapage_mempool, gfp_mask);
 }
@@ -726,12 +726,12 @@ void force_metapage(struct metapage *mp)
 	page_cache_release(page);
 }
 
-extern void hold_metapage(struct metapage *mp)
+void hold_metapage(struct metapage *mp)
 {
 	lock_page(mp->page);
 }
 
-extern void put_metapage(struct metapage *mp)
+void put_metapage(struct metapage *mp)
 {
 	if (mp->count || mp->nohomeok) {
 		/* Someone else will release this */
diff --git a/fs/jfs/jfs_metapage.h b/fs/jfs/jfs_metapage.h
index 991e9fb..f0b7d32 100644
--- a/fs/jfs/jfs_metapage.h
+++ b/fs/jfs/jfs_metapage.h
@@ -1,6 +1,6 @@
 /*
- *   Copyright (c) International Business Machines Corp., 2000-2002
- *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *   Copyright (C) International Business Machines Corp., 2000-2002
+ *   Portions Copyright (C) Christoph Hellwig, 2001-2002
  *
  *   This program is free software;  you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -58,6 +58,8 @@ struct metapage {
 #define mark_metapage_dirty(mp) set_bit(META_dirty, &(mp)->flag)
 
 /* function prototypes */
+extern int metapage_init(void);
+extern void metapage_exit(void);
 extern struct metapage *__get_metapage(struct inode *inode,
 				  unsigned long lblock, unsigned int size,
 				  int absolute, unsigned long new);
diff --git a/fs/jfs/jfs_superblock.h b/fs/jfs/jfs_superblock.h
index ab0566f..fcf781b 100644
--- a/fs/jfs/jfs_superblock.h
+++ b/fs/jfs/jfs_superblock.h
@@ -109,5 +109,16 @@ struct jfs_superblock {
 extern int readSuper(struct super_block *, struct buffer_head **);
 extern int updateSuper(struct super_block *, uint);
 extern void jfs_error(struct super_block *, const char *, ...);
+extern int jfs_mount(struct super_block *);
+extern int jfs_mount_rw(struct super_block *, int);
+extern int jfs_umount(struct super_block *);
+extern int jfs_umount_rw(struct super_block *);
+
+extern int jfs_stop_threads;
+extern struct completion jfsIOwait;
+extern wait_queue_head_t jfs_IO_thread_wait;
+extern wait_queue_head_t jfs_commit_thread_wait;
+extern wait_queue_head_t jfs_sync_thread_wait;
+extern int jfs_extendfs(struct super_block *, s64, int);
 
 #endif /*_H_JFS_SUPERBLOCK */
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index e93d01a..8cbaaff 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -42,7 +42,6 @@
  * hold on to mp+lock thru update of maps
  */
 
-
 #include <linux/fs.h>
 #include <linux/vmalloc.h>
 #include <linux/smp_lock.h>
@@ -51,6 +50,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include "jfs_incore.h"
+#include "jfs_inode.h"
 #include "jfs_filsys.h"
 #include "jfs_metapage.h"
 #include "jfs_dinode.h"
@@ -109,7 +109,6 @@ static int TxLockHWM;		/* High water mark for number of txLocks used */
 static int TxLockVHWM;		/* Very High water mark */
 struct tlock *TxLock;           /* transaction lock table */
 
-
 /*
  *      transaction management lock
  */
@@ -149,7 +148,6 @@ static inline void TXN_SLEEP_DROP_LOCK(wait_queue_head_t * event)
 
 #define TXN_WAKEUP(event) wake_up_all(event)
 
-
 /*
  *      statistics
  */
@@ -161,16 +159,6 @@ static struct {
 	int waitlock;		/* 4: # of tlock wait */
 } stattx;
 
-
-/*
- * external references
- */
-extern int lmGroupCommit(struct jfs_log *, struct tblock *);
-extern int jfs_commit_inode(struct inode *, int);
-extern int jfs_stop_threads;
-
-extern struct completion jfsIOwait;
-
 /*
  * forward references
  */
@@ -358,7 +346,6 @@ void txExit(void)
 	TxBlock = NULL;
 }
 
-
 /*
  * NAME:        txBegin()
  *
@@ -460,7 +447,6 @@ tid_t txBegin(struct super_block *sb, int flag)
 	return t;
 }
 
-
 /*
  * NAME:        txBeginAnon()
  *
@@ -503,7 +489,6 @@ void txBeginAnon(struct super_block *sb)
 	TXN_UNLOCK();
 }
 
-
 /*
  *      txEnd()
  *
@@ -592,7 +577,6 @@ wakeup:
 	TXN_WAKEUP(&TxAnchor.freewait);
 }
 
-
 /*
  *      txLock()
  *
@@ -868,7 +852,6 @@ struct tlock *txLock(tid_t tid, struct inode *ip, struct metapage * mp,
 	return NULL;
 }
 
-
 /*
  * NAME:        txRelease()
  *
@@ -908,7 +891,6 @@ static void txRelease(struct tblock * tblk)
 	TXN_UNLOCK();
 }
 
-
 /*
  * NAME:        txUnlock()
  *
@@ -996,7 +978,6 @@ static void txUnlock(struct tblock * tblk)
 	}
 }
 
-
 /*
  *      txMaplock()
  *
@@ -1069,7 +1050,6 @@ struct tlock *txMaplock(tid_t tid, struct inode *ip, int type)
 	return tlck;
 }
 
-
 /*
  *      txLinelock()
  *
@@ -1103,8 +1083,6 @@ struct linelock *txLinelock(struct linelock * tlock)
 	return linelock;
 }
 
-
-
 /*
  *              transaction commit management
  *              -----------------------------
@@ -1373,7 +1351,6 @@ int txCommit(tid_t tid,		/* transaction identifier */
 	return rc;
 }
 
-
 /*
  * NAME:        txLog()
  *
@@ -1437,7 +1414,6 @@ static int txLog(struct jfs_log * log, struct tblock * tblk, struct commit * cd)
 	return rc;
 }
 
-
 /*
  *      diLog()
  *
@@ -1465,7 +1441,6 @@ static int diLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
 	if (tlck->type & tlckENTRY) {
 		/* log after-image for logredo(): */
 		lrd->type = cpu_to_le16(LOG_REDOPAGE);
-//              *pxd = mp->cm_pxd;
 		PXDaddress(pxd, mp->index);
 		PXDlength(pxd,
 			  mp->logical_size >> tblk->sb->s_blocksize_bits);
@@ -1552,7 +1527,6 @@ static int diLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
 	return rc;
 }
 
-
 /*
  *      dataLog()
  *
@@ -1599,7 +1573,6 @@ static int dataLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
 	return 0;
 }
 
-
 /*
  *      dtLog()
  *
@@ -1639,7 +1612,6 @@ static void dtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
 			lrd->log.redopage.type |= cpu_to_le16(LOG_EXTEND);
 		else
 			lrd->log.redopage.type |= cpu_to_le16(LOG_NEW);
-//              *pxd = mp->cm_pxd;
 		PXDaddress(pxd, mp->index);
 		PXDlength(pxd,
 			  mp->logical_size >> tblk->sb->s_blocksize_bits);
@@ -1704,7 +1676,6 @@ static void dtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
 	return;
 }
 
-
 /*
  *      xtLog()
  *
@@ -1760,7 +1731,6 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
 		 * applying the after-image to the meta-data page.
 		 */
 		lrd->type = cpu_to_le16(LOG_REDOPAGE);
-//              *page_pxd = mp->cm_pxd;
 		PXDaddress(page_pxd, mp->index);
 		PXDlength(page_pxd,
 			  mp->logical_size >> tblk->sb->s_blocksize_bits);
@@ -2093,7 +2063,6 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
 	return;
 }
 
-
 /*
  *      mapLog()
  *
@@ -2180,7 +2149,6 @@ void mapLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
 	}
 }
 
-
 /*
  *      txEA()
  *
@@ -2233,7 +2201,6 @@ void txEA(tid_t tid, struct inode *ip, dxd_t * oldea, dxd_t * newea)
 	}
 }
 
-
 /*
  *      txForce()
  *
@@ -2300,7 +2267,6 @@ void txForce(struct tblock * tblk)
 	}
 }
 
-
 /*
  *      txUpdateMap()
  *
@@ -2437,7 +2403,6 @@ static void txUpdateMap(struct tblock * tblk)
 	}
 }
 
-
 /*
  *      txAllocPMap()
  *
@@ -2509,7 +2474,6 @@ static void txAllocPMap(struct inode *ip, struct maplock * maplock,
 	}
 }
 
-
 /*
  *      txFreeMap()
  *
@@ -2611,7 +2575,6 @@ void txFreeMap(struct inode *ip,
 	}
 }
 
-
 /*
  *      txFreelock()
  *
@@ -2652,7 +2615,6 @@ void txFreelock(struct inode *ip)
 	TXN_UNLOCK();
 }
 
-
 /*
  *      txAbort()
  *
diff --git a/fs/jfs/jfs_txnmgr.h b/fs/jfs/jfs_txnmgr.h
index b71b82c..59ad0f6 100644
--- a/fs/jfs/jfs_txnmgr.h
+++ b/fs/jfs/jfs_txnmgr.h
@@ -285,34 +285,26 @@ struct commit {
 /*
  * external declarations
  */
-extern struct tlock *txLock(tid_t tid, struct inode *ip, struct metapage *mp,
-			    int flag);
-
-extern struct tlock *txMaplock(tid_t tid, struct inode *ip, int flag);
-
-extern int txCommit(tid_t tid, int nip, struct inode **iplist, int flag);
-
-extern tid_t txBegin(struct super_block *sb, int flag);
-
-extern void txBeginAnon(struct super_block *sb);
-
-extern void txEnd(tid_t tid);
-
-extern void txAbort(tid_t tid, int dirty);
-
-extern struct linelock *txLinelock(struct linelock * tlock);
-
-extern void txFreeMap(struct inode *ip, struct maplock * maplock,
-		      struct tblock * tblk, int maptype);
-
-extern void txEA(tid_t tid, struct inode *ip, dxd_t * oldea, dxd_t * newea);
-
-extern void txFreelock(struct inode *ip);
-
-extern int lmLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
-		 struct tlock * tlck);
-
-extern void txQuiesce(struct super_block *sb);
-
-extern void txResume(struct super_block *sb);
+extern int jfs_tlocks_low;
+
+extern int txInit(void);
+extern void txExit(void);
+extern struct tlock *txLock(tid_t, struct inode *, struct metapage *, int);
+extern struct tlock *txMaplock(tid_t, struct inode *, int);
+extern int txCommit(tid_t, int, struct inode **, int);
+extern tid_t txBegin(struct super_block *, int);
+extern void txBeginAnon(struct super_block *);
+extern void txEnd(tid_t);
+extern void txAbort(tid_t, int);
+extern struct linelock *txLinelock(struct linelock *);
+extern void txFreeMap(struct inode *, struct maplock *, struct tblock *, int);
+extern void txEA(tid_t, struct inode *, dxd_t *, dxd_t *);
+extern void txFreelock(struct inode *);
+extern int lmLog(struct jfs_log *, struct tblock *, struct lrd *,
+		 struct tlock *);
+extern void txQuiesce(struct super_block *);
+extern void txResume(struct super_block *);
+extern void txLazyUnlock(struct tblock *);
+extern int jfs_lazycommit(void *);
+extern int jfs_sync(void *);
 #endif				/* _H_JFS_TXNMGR */
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 8413a36..1cae14e 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -31,20 +31,9 @@
 #include "jfs_acl.h"
 #include "jfs_debug.h"
 
-extern struct inode_operations jfs_file_inode_operations;
-extern struct inode_operations jfs_symlink_inode_operations;
-extern struct file_operations jfs_file_operations;
-extern struct address_space_operations jfs_aops;
-
-extern int jfs_fsync(struct file *, struct dentry *, int);
-extern void jfs_truncate_nolock(struct inode *, loff_t);
-extern int jfs_init_acl(struct inode *, struct inode *);
-
 /*
  * forward references
  */
-struct inode_operations jfs_dir_inode_operations;
-struct file_operations jfs_dir_operations;
 struct dentry_operations jfs_ci_dentry_operations;
 
 static s64 commitZeroLink(tid_t, struct inode *);
@@ -655,7 +644,7 @@ static s64 commitZeroLink(tid_t tid, struct inode *ip)
 
 
 /*
- * NAME:	freeZeroLink()
+ * NAME:	jfs_free_zero_link()
  *
  * FUNCTION:    for non-directory, called by iClose(),
  *		free resources of a file from cache and WORKING map 
@@ -663,15 +652,12 @@ static s64 commitZeroLink(tid_t tid, struct inode *ip)
  *		while associated with a pager object,
  *
  * PARAMETER:	ip	- pointer to inode of file.
- *
- * RETURN:	0 -ok
  */
-int freeZeroLink(struct inode *ip)
+void jfs_free_zero_link(struct inode *ip)
 {
-	int rc = 0;
 	int type;
 
-	jfs_info("freeZeroLink: ip = 0x%p", ip);
+	jfs_info("jfs_free_zero_link: ip = 0x%p", ip);
 
 	/* return if not reg or symbolic link or if size is
 	 * already ok.
@@ -684,10 +670,10 @@ int freeZeroLink(struct inode *ip)
 	case S_IFLNK:
 		/* if its contained in inode nothing to do */
 		if (ip->i_size < IDATASIZE)
-			return 0;
+			return;
 		break;
 	default:
-		return 0;
+		return;
 	}
 
 	/*
@@ -737,9 +723,7 @@ int freeZeroLink(struct inode *ip)
 	 * free xtree/data blocks from working block map;
 	 */
 	if (ip->i_size)
-		rc = xtTruncate(0, ip, 0, COMMIT_WMAP);
-
-	return rc;
+		xtTruncate(0, ip, 0, COMMIT_WMAP);
 }
 
 /*
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 5e774ed..810a365 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -28,6 +28,7 @@
 
 #include "jfs_incore.h"
 #include "jfs_filsys.h"
+#include "jfs_inode.h"
 #include "jfs_metapage.h"
 #include "jfs_superblock.h"
 #include "jfs_dmap.h"
@@ -62,37 +63,6 @@ module_param(jfsloglevel, int, 0644);
 MODULE_PARM_DESC(jfsloglevel, "Specify JFS loglevel (0, 1 or 2)");
 #endif
 
-/*
- * External declarations
- */
-extern int jfs_mount(struct super_block *);
-extern int jfs_mount_rw(struct super_block *, int);
-extern int jfs_umount(struct super_block *);
-extern int jfs_umount_rw(struct super_block *);
-
-extern int jfsIOWait(void *);
-extern int jfs_lazycommit(void *);
-extern int jfs_sync(void *);
-
-extern void jfs_read_inode(struct inode *inode);
-extern void jfs_dirty_inode(struct inode *inode);
-extern void jfs_delete_inode(struct inode *inode);
-extern int jfs_write_inode(struct inode *inode, int wait);
-
-extern struct dentry *jfs_get_parent(struct dentry *dentry);
-extern int jfs_extendfs(struct super_block *, s64, int);
-
-extern struct dentry_operations jfs_ci_dentry_operations;
-
-#ifdef PROC_FS_JFS		/* see jfs_debug.h */
-extern void jfs_proc_init(void);
-extern void jfs_proc_clean(void);
-#endif
-
-extern wait_queue_head_t jfs_IO_thread_wait;
-extern wait_queue_head_t jfs_commit_thread_wait;
-extern wait_queue_head_t jfs_sync_thread_wait;
-
 static void jfs_handle_error(struct super_block *sb)
 {
 	struct jfs_sb_info *sbi = JFS_SBI(sb);
@@ -593,11 +563,6 @@ static struct file_system_type jfs_fs_type = {
 	.fs_flags	= FS_REQUIRES_DEV,
 };
 
-extern int metapage_init(void);
-extern int txInit(void);
-extern void txExit(void);
-extern void metapage_exit(void);
-
 static void init_once(void *foo, kmem_cache_t * cachep, unsigned long flags)
 {
 	struct jfs_inode_info *jfs_ip = (struct jfs_inode_info *) foo;
diff --git a/fs/jfs/symlink.c b/fs/jfs/symlink.c
index ef4c07e..287d8d6 100644
--- a/fs/jfs/symlink.c
+++ b/fs/jfs/symlink.c
@@ -1,5 +1,5 @@
 /*
- *   Copyright (c) Christoph Hellwig, 2001-2002
+ *   Copyright (C) Christoph Hellwig, 2001-2002
  *
  *   This program is free software;  you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@
 #include <linux/fs.h>
 #include <linux/namei.h>
 #include "jfs_incore.h"
+#include "jfs_inode.h"
 #include "jfs_xattr.h"
 
 static int jfs_follow_link(struct dentry *dentry, struct nameidata *nd)
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 7a9ffd5..6016373 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -946,8 +946,7 @@ int __jfs_setxattr(struct inode *inode, const char *name, const void *value,
       out:
 	up_write(&JFS_IP(inode)->xattr_sem);
 
-	if (os2name)
-		kfree(os2name);
+	kfree(os2name);
 
 	return rc;
 }
@@ -1042,8 +1041,7 @@ ssize_t __jfs_getxattr(struct inode *inode, const char *name, void *data,
       out:
 	up_read(&JFS_IP(inode)->xattr_sem);
 
-	if (os2name)
-		kfree(os2name);
+	kfree(os2name);
 
 	return size;
 }
diff --git a/fs/libfs.c b/fs/libfs.c
index f90b295..5025563 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -519,6 +519,102 @@ int simple_transaction_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
+/* Simple attribute files */
+
+struct simple_attr {
+	u64 (*get)(void *);
+	void (*set)(void *, u64);
+	char get_buf[24];	/* enough to store a u64 and "\n\0" */
+	char set_buf[24];
+	void *data;
+	const char *fmt;	/* format for read operation */
+	struct semaphore sem;	/* protects access to these buffers */
+};
+
+/* simple_attr_open is called by an actual attribute open file operation
+ * to set the attribute specific access operations. */
+int simple_attr_open(struct inode *inode, struct file *file,
+		     u64 (*get)(void *), void (*set)(void *, u64),
+		     const char *fmt)
+{
+	struct simple_attr *attr;
+
+	attr = kmalloc(sizeof(*attr), GFP_KERNEL);
+	if (!attr)
+		return -ENOMEM;
+
+	attr->get = get;
+	attr->set = set;
+	attr->data = inode->u.generic_ip;
+	attr->fmt = fmt;
+	init_MUTEX(&attr->sem);
+
+	file->private_data = attr;
+
+	return nonseekable_open(inode, file);
+}
+
+int simple_attr_close(struct inode *inode, struct file *file)
+{
+	kfree(file->private_data);
+	return 0;
+}
+
+/* read from the buffer that is filled with the get function */
+ssize_t simple_attr_read(struct file *file, char __user *buf,
+			 size_t len, loff_t *ppos)
+{
+	struct simple_attr *attr;
+	size_t size;
+	ssize_t ret;
+
+	attr = file->private_data;
+
+	if (!attr->get)
+		return -EACCES;
+
+	down(&attr->sem);
+	if (*ppos) /* continued read */
+		size = strlen(attr->get_buf);
+	else	  /* first read */
+		size = scnprintf(attr->get_buf, sizeof(attr->get_buf),
+				 attr->fmt,
+				 (unsigned long long)attr->get(attr->data));
+
+	ret = simple_read_from_buffer(buf, len, ppos, attr->get_buf, size);
+	up(&attr->sem);
+	return ret;
+}
+
+/* interpret the buffer as a number to call the set function with */
+ssize_t simple_attr_write(struct file *file, const char __user *buf,
+			  size_t len, loff_t *ppos)
+{
+	struct simple_attr *attr;
+	u64 val;
+	size_t size;
+	ssize_t ret;
+
+	attr = file->private_data;
+
+	if (!attr->set)
+		return -EACCES;
+
+	down(&attr->sem);
+	ret = -EFAULT;
+	size = min(sizeof(attr->set_buf) - 1, len);
+	if (copy_from_user(attr->set_buf, buf, size))
+		goto out;
+
+	ret = len; /* claim we got the whole input */
+	attr->set_buf[size] = '\0';
+	val = simple_strtol(attr->set_buf, NULL, 0);
+	attr->set(attr->data, val);
+out:
+	up(&attr->sem);
+	return ret;
+}
+
 EXPORT_SYMBOL(dcache_dir_close);
 EXPORT_SYMBOL(dcache_dir_lseek);
 EXPORT_SYMBOL(dcache_dir_open);
@@ -547,3 +643,7 @@ EXPORT_SYMBOL(simple_read_from_buffer);
 EXPORT_SYMBOL(simple_transaction_get);
 EXPORT_SYMBOL(simple_transaction_read);
 EXPORT_SYMBOL(simple_transaction_release);
+EXPORT_SYMBOL_GPL(simple_attr_open);
+EXPORT_SYMBOL_GPL(simple_attr_close);
+EXPORT_SYMBOL_GPL(simple_attr_read);
+EXPORT_SYMBOL_GPL(simple_attr_write);
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index ef7103b..006bb9e 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -31,7 +31,7 @@ static int			reclaimer(void *ptr);
  * This is the representation of a blocked client lock.
  */
 struct nlm_wait {
-	struct nlm_wait *	b_next;		/* linked list */
+	struct list_head	b_list;		/* linked list */
 	wait_queue_head_t	b_wait;		/* where to wait on */
 	struct nlm_host *	b_host;
 	struct file_lock *	b_lock;		/* local file lock */
@@ -39,27 +39,54 @@ struct nlm_wait {
 	u32			b_status;	/* grant callback status */
 };
 
-static struct nlm_wait *	nlm_blocked;
+static LIST_HEAD(nlm_blocked);
 
 /*
- * Block on a lock
+ * Queue up a lock for blocking so that the GRANTED request can see it
  */
-int
-nlmclnt_block(struct nlm_host *host, struct file_lock *fl, u32 *statp)
+int nlmclnt_prepare_block(struct nlm_rqst *req, struct nlm_host *host, struct file_lock *fl)
+{
+	struct nlm_wait *block;
+
+	BUG_ON(req->a_block != NULL);
+	block = kmalloc(sizeof(*block), GFP_KERNEL);
+	if (block == NULL)
+		return -ENOMEM;
+	block->b_host = host;
+	block->b_lock = fl;
+	init_waitqueue_head(&block->b_wait);
+	block->b_status = NLM_LCK_BLOCKED;
+
+	list_add(&block->b_list, &nlm_blocked);
+	req->a_block = block;
+
+	return 0;
+}
+
+void nlmclnt_finish_block(struct nlm_rqst *req)
 {
-	struct nlm_wait	block, **head;
-	int		err;
-	u32		pstate;
+	struct nlm_wait *block = req->a_block;
 
-	block.b_host   = host;
-	block.b_lock   = fl;
-	init_waitqueue_head(&block.b_wait);
-	block.b_status = NLM_LCK_BLOCKED;
-	block.b_next   = nlm_blocked;
-	nlm_blocked    = &block;
+	if (block == NULL)
+		return;
+	req->a_block = NULL;
+	list_del(&block->b_list);
+	kfree(block);
+}
+
+/*
+ * Block on a lock
+ */
+long nlmclnt_block(struct nlm_rqst *req, long timeout)
+{
+	struct nlm_wait	*block = req->a_block;
+	long ret;
 
-	/* Remember pseudo nsm state */
-	pstate = host->h_state;
+	/* A borken server might ask us to block even if we didn't
+	 * request it. Just say no!
+	 */
+	if (!req->a_args.block)
+		return -EAGAIN;
 
 	/* Go to sleep waiting for GRANT callback. Some servers seem
 	 * to lose callbacks, however, so we're going to poll from
@@ -69,28 +96,16 @@ nlmclnt_block(struct nlm_host *host, struct file_lock *fl, u32 *statp)
 	 * a 1 minute timeout would do. See the comment before
 	 * nlmclnt_lock for an explanation.
 	 */
-	sleep_on_timeout(&block.b_wait, 30*HZ);
-
-	for (head = &nlm_blocked; *head; head = &(*head)->b_next) {
-		if (*head == &block) {
-			*head = block.b_next;
-			break;
-		}
-	}
+	ret = wait_event_interruptible_timeout(block->b_wait,
+			block->b_status != NLM_LCK_BLOCKED,
+			timeout);
 
-	if (!signalled()) {
-		*statp = block.b_status;
-		return 0;
+	if (block->b_status != NLM_LCK_BLOCKED) {
+		req->a_res.status = block->b_status;
+		block->b_status = NLM_LCK_BLOCKED;
 	}
 
-	/* Okay, we were interrupted. Cancel the pending request
-	 * unless the server has rebooted.
-	 */
-	if (pstate == host->h_state && (err = nlmclnt_cancel(host, fl)) < 0)
-		printk(KERN_NOTICE
-			"lockd: CANCEL call failed (errno %d)\n", -err);
-
-	return -ERESTARTSYS;
+	return ret;
 }
 
 /*
@@ -100,27 +115,23 @@ u32
 nlmclnt_grant(struct nlm_lock *lock)
 {
 	struct nlm_wait	*block;
+	u32 res = nlm_lck_denied;
 
 	/*
 	 * Look up blocked request based on arguments. 
 	 * Warning: must not use cookie to match it!
 	 */
-	for (block = nlm_blocked; block; block = block->b_next) {
-		if (nlm_compare_locks(block->b_lock, &lock->fl))
-			break;
+	list_for_each_entry(block, &nlm_blocked, b_list) {
+		if (nlm_compare_locks(block->b_lock, &lock->fl)) {
+			/* Alright, we found a lock. Set the return status
+			 * and wake up the caller
+			 */
+			block->b_status = NLM_LCK_GRANTED;
+			wake_up(&block->b_wait);
+			res = nlm_granted;
+		}
 	}
-
-	/* Ooops, no blocked request found. */
-	if (block == NULL)
-		return nlm_lck_denied;
-
-	/* Alright, we found the lock. Set the return status and
-	 * wake up the caller.
-	 */
-	block->b_status = NLM_LCK_GRANTED;
-	wake_up(&block->b_wait);
-
-	return nlm_granted;
+	return res;
 }
 
 /*
@@ -230,7 +241,7 @@ restart:
 	host->h_reclaiming = 0;
 
 	/* Now, wake up all processes that sleep on a blocked lock */
-	for (block = nlm_blocked; block; block = block->b_next) {
+	list_for_each_entry(block, &nlm_blocked, b_list) {
 		if (block->b_host == host) {
 			block->b_status = NLM_LCK_DENIED_GRACE_PERIOD;
 			wake_up(&block->b_wait);
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index a440761..fd77ed1 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -21,6 +21,7 @@
 
 #define NLMDBG_FACILITY		NLMDBG_CLIENT
 #define NLMCLNT_GRACE_WAIT	(5*HZ)
+#define NLMCLNT_POLL_TIMEOUT	(30*HZ)
 
 static int	nlmclnt_test(struct nlm_rqst *, struct file_lock *);
 static int	nlmclnt_lock(struct nlm_rqst *, struct file_lock *);
@@ -553,7 +554,8 @@ nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)
 {
 	struct nlm_host	*host = req->a_host;
 	struct nlm_res	*resp = &req->a_res;
-	int		status;
+	long timeout;
+	int status;
 
 	if (!host->h_monitored && nsm_monitor(host) < 0) {
 		printk(KERN_NOTICE "lockd: failed to monitor %s\n",
@@ -562,15 +564,32 @@ nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)
 		goto out;
 	}
 
-	do {
-		if ((status = nlmclnt_call(req, NLMPROC_LOCK)) >= 0) {
-			if (resp->status != NLM_LCK_BLOCKED)
-				break;
-			status = nlmclnt_block(host, fl, &resp->status);
-		}
+	if (req->a_args.block) {
+		status = nlmclnt_prepare_block(req, host, fl);
 		if (status < 0)
 			goto out;
-	} while (resp->status == NLM_LCK_BLOCKED && req->a_args.block);
+	}
+	for(;;) {
+		status = nlmclnt_call(req, NLMPROC_LOCK);
+		if (status < 0)
+			goto out_unblock;
+		if (resp->status != NLM_LCK_BLOCKED)
+			break;
+		/* Wait on an NLM blocking lock */
+		timeout = nlmclnt_block(req, NLMCLNT_POLL_TIMEOUT);
+		/* Did a reclaimer thread notify us of a server reboot? */
+		if (resp->status ==  NLM_LCK_DENIED_GRACE_PERIOD)
+			continue;
+		if (resp->status != NLM_LCK_BLOCKED)
+			break;
+		if (timeout >= 0)
+			continue;
+		/* We were interrupted. Send a CANCEL request to the server
+		 * and exit
+		 */
+		status = (int)timeout;
+		goto out_unblock;
+	}
 
 	if (resp->status == NLM_LCK_GRANTED) {
 		fl->fl_u.nfs_fl.state = host->h_state;
@@ -579,6 +598,11 @@ nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)
 		do_vfs_lock(fl);
 	}
 	status = nlm_stat_to_errno(resp->status);
+out_unblock:
+	nlmclnt_finish_block(req);
+	/* Cancel the blocked request if it is still pending */
+	if (resp->status == NLM_LCK_BLOCKED)
+		nlmclnt_cancel(host, fl);
 out:
 	nlmclnt_release_lockargs(req);
 	return status;
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 52707c5..82c77df 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -189,17 +189,15 @@ nlm_bind_host(struct nlm_host *host)
 			goto forgetit;
 
 		xprt_set_timeout(&xprt->timeout, 5, nlmsvc_timeout);
+		xprt->nocong = 1;	/* No congestion control for NLM */
+		xprt->resvport = 1;	/* NLM requires a reserved port */
 
 		/* Existing NLM servers accept AUTH_UNIX only */
 		clnt = rpc_create_client(xprt, host->h_name, &nlm_program,
 					host->h_version, RPC_AUTH_UNIX);
-		if (IS_ERR(clnt)) {
-			xprt_destroy(xprt);
+		if (IS_ERR(clnt))
 			goto forgetit;
-		}
 		clnt->cl_autobind = 1;	/* turn on pmap queries */
-		xprt->nocong = 1;	/* No congestion control for NLM */
-		xprt->resvport = 1;	/* NLM requires a reserved port */
 
 		host->h_rpcclnt = clnt;
 	}
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 6fc1beb..2d144ab 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -115,20 +115,19 @@ nsm_create(void)
 	xprt = xprt_create_proto(IPPROTO_UDP, &sin, NULL);
 	if (IS_ERR(xprt))
 		return (struct rpc_clnt *)xprt;
+	xprt->resvport = 1;	/* NSM requires a reserved port */
 
 	clnt = rpc_create_client(xprt, "localhost",
 				&nsm_program, SM_VERSION,
 				RPC_AUTH_NULL);
 	if (IS_ERR(clnt))
-		goto out_destroy;
+		goto out_err;
 	clnt->cl_softrtry = 1;
 	clnt->cl_chatty   = 1;
 	clnt->cl_oneshot  = 1;
-	xprt->resvport = 1;	/* NSM requires a reserved port */
 	return clnt;
 
-out_destroy:
-	xprt_destroy(xprt);
+out_err:
 	return clnt;
 }
 
diff --git a/fs/locks.c b/fs/locks.c
index 3fa6a7c..a0bc034 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1548,6 +1548,8 @@ int fcntl_getlk(struct file *filp, struct flock __user *l)
 
 	if (filp->f_op && filp->f_op->lock) {
 		error = filp->f_op->lock(filp, F_GETLK, &file_lock);
+		if (file_lock.fl_ops && file_lock.fl_ops->fl_release_private)
+			file_lock.fl_ops->fl_release_private(&file_lock);
 		if (error < 0)
 			goto out;
 		else
@@ -1690,6 +1692,8 @@ int fcntl_getlk64(struct file *filp, struct flock64 __user *l)
 
 	if (filp->f_op && filp->f_op->lock) {
 		error = filp->f_op->lock(filp, F_GETLK, &file_lock);
+		if (file_lock.fl_ops && file_lock.fl_ops->fl_release_private)
+			file_lock.fl_ops->fl_release_private(&file_lock);
 		if (error < 0)
 			goto out;
 		else
@@ -1873,6 +1877,8 @@ void locks_remove_flock(struct file *filp)
 			.fl_end = OFFSET_MAX,
 		};
 		filp->f_op->flock(filp, F_SETLKW, &fl);
+		if (fl.fl_ops && fl.fl_ops->fl_release_private)
+			fl.fl_ops->fl_release_private(&fl);
 	}
 
 	lock_kernel();
diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile
index b4baa03..8b3bb71 100644
--- a/fs/nfs/Makefile
+++ b/fs/nfs/Makefile
@@ -8,6 +8,7 @@ nfs-y 			:= dir.o file.o inode.o nfs2xdr.o pagelist.o \
 			   proc.o read.o symlink.o unlink.o write.o
 nfs-$(CONFIG_ROOT_NFS)	+= nfsroot.o mount_clnt.o      
 nfs-$(CONFIG_NFS_V3)	+= nfs3proc.o nfs3xdr.o
+nfs-$(CONFIG_NFS_V3_ACL)	+= nfs3acl.o
 nfs-$(CONFIG_NFS_V4)	+= nfs4proc.o nfs4xdr.o nfs4state.o nfs4renewd.o \
 			   delegation.o idmap.o \
 			   callback.o callback_xdr.o callback_proc.o
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 560d617..f2ca782 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -14,6 +14,7 @@
 #include <linux/sunrpc/svc.h>
 #include <linux/sunrpc/svcsock.h>
 #include <linux/nfs_fs.h>
+#include "nfs4_fs.h"
 #include "callback.h"
 
 #define NFSDBG_FACILITY NFSDBG_CALLBACK
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index ece27e4..65f1e19 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -8,6 +8,7 @@
 #include <linux/config.h>
 #include <linux/nfs4.h>
 #include <linux/nfs_fs.h>
+#include "nfs4_fs.h"
 #include "callback.h"
 #include "delegation.h"
 
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index d271df9..7c33b9a 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -10,6 +10,7 @@
 #include <linux/sunrpc/svc.h>
 #include <linux/nfs4.h>
 #include <linux/nfs_fs.h>
+#include "nfs4_fs.h"
 #include "callback.h"
 
 #define CB_OP_TAGLEN_MAXSZ	(512)
@@ -410,7 +411,6 @@ static int nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *resp
 	xdr_init_decode(&xdr_in, &rqstp->rq_arg, rqstp->rq_arg.head[0].iov_base);
 
 	p = (uint32_t*)((char *)rqstp->rq_res.head[0].iov_base + rqstp->rq_res.head[0].iov_len);
-	rqstp->rq_res.head[0].iov_len = PAGE_SIZE;
 	xdr_init_encode(&xdr_out, &rqstp->rq_res, p);
 
 	decode_compound_hdr_arg(&xdr_in, &hdr_arg);
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 5b9c60f..d7f7eb6 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -16,6 +16,7 @@
 #include <linux/nfs_fs.h>
 #include <linux/nfs_xdr.h>
 
+#include "nfs4_fs.h"
 #include "delegation.h"
 
 static struct nfs_delegation *nfs_alloc_delegation(void)
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index ff6155f..b38a57e 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -32,6 +32,7 @@
 #include <linux/smp_lock.h>
 #include <linux/namei.h>
 
+#include "nfs4_fs.h"
 #include "delegation.h"
 
 #define NFS_PARANOIA 1
@@ -50,8 +51,10 @@ static int nfs_mknod(struct inode *, struct dentry *, int, dev_t);
 static int nfs_rename(struct inode *, struct dentry *,
 		      struct inode *, struct dentry *);
 static int nfs_fsync_dir(struct file *, struct dentry *, int);
+static loff_t nfs_llseek_dir(struct file *, loff_t, int);
 
 struct file_operations nfs_dir_operations = {
+	.llseek		= nfs_llseek_dir,
 	.read		= generic_read_dir,
 	.readdir	= nfs_readdir,
 	.open		= nfs_opendir,
@@ -74,6 +77,27 @@ struct inode_operations nfs_dir_inode_operations = {
 	.setattr	= nfs_setattr,
 };
 
+#ifdef CONFIG_NFS_V3
+struct inode_operations nfs3_dir_inode_operations = {
+	.create		= nfs_create,
+	.lookup		= nfs_lookup,
+	.link		= nfs_link,
+	.unlink		= nfs_unlink,
+	.symlink	= nfs_symlink,
+	.mkdir		= nfs_mkdir,
+	.rmdir		= nfs_rmdir,
+	.mknod		= nfs_mknod,
+	.rename		= nfs_rename,
+	.permission	= nfs_permission,
+	.getattr	= nfs_getattr,
+	.setattr	= nfs_setattr,
+	.listxattr	= nfs3_listxattr,
+	.getxattr	= nfs3_getxattr,
+	.setxattr	= nfs3_setxattr,
+	.removexattr	= nfs3_removexattr,
+};
+#endif  /* CONFIG_NFS_V3 */
+
 #ifdef CONFIG_NFS_V4
 
 static struct dentry *nfs_atomic_lookup(struct inode *, struct dentry *, struct nameidata *);
@@ -90,6 +114,9 @@ struct inode_operations nfs4_dir_inode_operations = {
 	.permission	= nfs_permission,
 	.getattr	= nfs_getattr,
 	.setattr	= nfs_setattr,
+	.getxattr       = nfs4_getxattr,
+	.setxattr       = nfs4_setxattr,
+	.listxattr      = nfs4_listxattr,
 };
 
 #endif /* CONFIG_NFS_V4 */
@@ -116,7 +143,8 @@ typedef struct {
 	struct page	*page;
 	unsigned long	page_index;
 	u32		*ptr;
-	u64		target;
+	u64		*dir_cookie;
+	loff_t		current_index;
 	struct nfs_entry *entry;
 	decode_dirent_t	decode;
 	int		plus;
@@ -164,12 +192,10 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page)
 	NFS_FLAGS(inode) |= NFS_INO_INVALID_ATIME;
 	/* Ensure consistent page alignment of the data.
 	 * Note: assumes we have exclusive access to this mapping either
-	 *	 throught inode->i_sem or some other mechanism.
+	 *	 through inode->i_sem or some other mechanism.
 	 */
-	if (page->index == 0) {
-		invalidate_inode_pages(inode->i_mapping);
-		NFS_I(inode)->readdir_timestamp = timestamp;
-	}
+	if (page->index == 0)
+		invalidate_inode_pages2_range(inode->i_mapping, PAGE_CACHE_SIZE, -1);
 	unlock_page(page);
 	return 0;
  error:
@@ -202,22 +228,22 @@ void dir_page_release(nfs_readdir_descriptor_t *desc)
 
 /*
  * Given a pointer to a buffer that has already been filled by a call
- * to readdir, find the next entry.
+ * to readdir, find the next entry with cookie '*desc->dir_cookie'.
  *
  * If the end of the buffer has been reached, return -EAGAIN, if not,
  * return the offset within the buffer of the next entry to be
  * read.
  */
 static inline
-int find_dirent(nfs_readdir_descriptor_t *desc, struct page *page)
+int find_dirent(nfs_readdir_descriptor_t *desc)
 {
 	struct nfs_entry *entry = desc->entry;
 	int		loop_count = 0,
 			status;
 
 	while((status = dir_decode(desc)) == 0) {
-		dfprintk(VFS, "NFS: found cookie %Lu\n", (long long)entry->cookie);
-		if (entry->prev_cookie == desc->target)
+		dfprintk(VFS, "NFS: found cookie %Lu\n", (unsigned long long)entry->cookie);
+		if (entry->prev_cookie == *desc->dir_cookie)
 			break;
 		if (loop_count++ > 200) {
 			loop_count = 0;
@@ -229,8 +255,44 @@ int find_dirent(nfs_readdir_descriptor_t *desc, struct page *page)
 }
 
 /*
- * Find the given page, and call find_dirent() in order to try to
- * return the next entry.
+ * Given a pointer to a buffer that has already been filled by a call
+ * to readdir, find the entry at offset 'desc->file->f_pos'.
+ *
+ * If the end of the buffer has been reached, return -EAGAIN, if not,
+ * return the offset within the buffer of the next entry to be
+ * read.
+ */
+static inline
+int find_dirent_index(nfs_readdir_descriptor_t *desc)
+{
+	struct nfs_entry *entry = desc->entry;
+	int		loop_count = 0,
+			status;
+
+	for(;;) {
+		status = dir_decode(desc);
+		if (status)
+			break;
+
+		dfprintk(VFS, "NFS: found cookie %Lu at index %Ld\n", (unsigned long long)entry->cookie, desc->current_index);
+
+		if (desc->file->f_pos == desc->current_index) {
+			*desc->dir_cookie = entry->cookie;
+			break;
+		}
+		desc->current_index++;
+		if (loop_count++ > 200) {
+			loop_count = 0;
+			schedule();
+		}
+	}
+	dfprintk(VFS, "NFS: find_dirent_index() returns %d\n", status);
+	return status;
+}
+
+/*
+ * Find the given page, and call find_dirent() or find_dirent_index in
+ * order to try to return the next entry.
  */
 static inline
 int find_dirent_page(nfs_readdir_descriptor_t *desc)
@@ -253,7 +315,10 @@ int find_dirent_page(nfs_readdir_descriptor_t *desc)
 	/* NOTE: Someone else may have changed the READDIRPLUS flag */
 	desc->page = page;
 	desc->ptr = kmap(page);		/* matching kunmap in nfs_do_filldir */
-	status = find_dirent(desc, page);
+	if (*desc->dir_cookie != 0)
+		status = find_dirent(desc);
+	else
+		status = find_dirent_index(desc);
 	if (status < 0)
 		dir_page_release(desc);
  out:
@@ -268,7 +333,8 @@ int find_dirent_page(nfs_readdir_descriptor_t *desc)
  * Recurse through the page cache pages, and return a
  * filled nfs_entry structure of the next directory entry if possible.
  *
- * The target for the search is 'desc->target'.
+ * The target for the search is '*desc->dir_cookie' if non-0,
+ * 'desc->file->f_pos' otherwise
  */
 static inline
 int readdir_search_pagecache(nfs_readdir_descriptor_t *desc)
@@ -276,7 +342,16 @@ int readdir_search_pagecache(nfs_readdir_descriptor_t *desc)
 	int		loop_count = 0;
 	int		res;
 
-	dfprintk(VFS, "NFS: readdir_search_pagecache() searching for cookie %Lu\n", (long long)desc->target);
+	/* Always search-by-index from the beginning of the cache */
+	if (*desc->dir_cookie == 0) {
+		dfprintk(VFS, "NFS: readdir_search_pagecache() searching for offset %Ld\n", (long long)desc->file->f_pos);
+		desc->page_index = 0;
+		desc->entry->cookie = desc->entry->prev_cookie = 0;
+		desc->entry->eof = 0;
+		desc->current_index = 0;
+	} else
+		dfprintk(VFS, "NFS: readdir_search_pagecache() searching for cookie %Lu\n", (unsigned long long)*desc->dir_cookie);
+
 	for (;;) {
 		res = find_dirent_page(desc);
 		if (res != -EAGAIN)
@@ -313,7 +388,7 @@ int nfs_do_filldir(nfs_readdir_descriptor_t *desc, void *dirent,
 	int		loop_count = 0,
 			res;
 
-	dfprintk(VFS, "NFS: nfs_do_filldir() filling starting @ cookie %Lu\n", (long long)desc->target);
+	dfprintk(VFS, "NFS: nfs_do_filldir() filling starting @ cookie %Lu\n", (long long)entry->cookie);
 
 	for(;;) {
 		unsigned d_type = DT_UNKNOWN;
@@ -333,10 +408,11 @@ int nfs_do_filldir(nfs_readdir_descriptor_t *desc, void *dirent,
 		}
 
 		res = filldir(dirent, entry->name, entry->len, 
-			      entry->prev_cookie, fileid, d_type);
+			      file->f_pos, fileid, d_type);
 		if (res < 0)
 			break;
-		file->f_pos = desc->target = entry->cookie;
+		file->f_pos++;
+		*desc->dir_cookie = entry->cookie;
 		if (dir_decode(desc) != 0) {
 			desc->page_index ++;
 			break;
@@ -349,7 +425,7 @@ int nfs_do_filldir(nfs_readdir_descriptor_t *desc, void *dirent,
 	dir_page_release(desc);
 	if (dentry != NULL)
 		dput(dentry);
-	dfprintk(VFS, "NFS: nfs_do_filldir() filling ended @ cookie %Lu; returning = %d\n", (long long)desc->target, res);
+	dfprintk(VFS, "NFS: nfs_do_filldir() filling ended @ cookie %Lu; returning = %d\n", (unsigned long long)*desc->dir_cookie, res);
 	return res;
 }
 
@@ -375,14 +451,14 @@ int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent,
 	struct page	*page = NULL;
 	int		status;
 
-	dfprintk(VFS, "NFS: uncached_readdir() searching for cookie %Lu\n", (long long)desc->target);
+	dfprintk(VFS, "NFS: uncached_readdir() searching for cookie %Lu\n", (unsigned long long)*desc->dir_cookie);
 
 	page = alloc_page(GFP_HIGHUSER);
 	if (!page) {
 		status = -ENOMEM;
 		goto out;
 	}
-	desc->error = NFS_PROTO(inode)->readdir(file->f_dentry, cred, desc->target,
+	desc->error = NFS_PROTO(inode)->readdir(file->f_dentry, cred, *desc->dir_cookie,
 						page,
 						NFS_SERVER(inode)->dtsize,
 						desc->plus);
@@ -391,7 +467,7 @@ int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent,
 	desc->ptr = kmap(page);		/* matching kunmap in nfs_do_filldir */
 	if (desc->error >= 0) {
 		if ((status = dir_decode(desc)) == 0)
-			desc->entry->prev_cookie = desc->target;
+			desc->entry->prev_cookie = *desc->dir_cookie;
 	} else
 		status = -EIO;
 	if (status < 0)
@@ -412,8 +488,9 @@ int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent,
 	goto out;
 }
 
-/* The file offset position is now represented as a true offset into the
- * page cache as is the case in most of the other filesystems.
+/* The file offset position represents the dirent entry number.  A
+   last cookie cache takes care of the common case of reading the
+   whole directory.
  */
 static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 {
@@ -435,15 +512,15 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 	}
 
 	/*
-	 * filp->f_pos points to the file offset in the page cache.
-	 * but if the cache has meanwhile been zapped, we need to
-	 * read from the last dirent to revalidate f_pos
-	 * itself.
+	 * filp->f_pos points to the dirent entry number.
+	 * *desc->dir_cookie has the cookie for the next entry. We have
+	 * to either find the entry with the appropriate number or
+	 * revalidate the cookie.
 	 */
 	memset(desc, 0, sizeof(*desc));
 
 	desc->file = filp;
-	desc->target = filp->f_pos;
+	desc->dir_cookie = &((struct nfs_open_context *)filp->private_data)->dir_cookie;
 	desc->decode = NFS_PROTO(inode)->decode_dirent;
 	desc->plus = NFS_USE_READDIRPLUS(inode);
 
@@ -455,9 +532,10 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 
 	while(!desc->entry->eof) {
 		res = readdir_search_pagecache(desc);
+
 		if (res == -EBADCOOKIE) {
 			/* This means either end of directory */
-			if (desc->entry->cookie != desc->target) {
+			if (*desc->dir_cookie && desc->entry->cookie != *desc->dir_cookie) {
 				/* Or that the server has 'lost' a cookie */
 				res = uncached_readdir(desc, dirent, filldir);
 				if (res >= 0)
@@ -490,6 +568,28 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 	return 0;
 }
 
+loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int origin)
+{
+	down(&filp->f_dentry->d_inode->i_sem);
+	switch (origin) {
+		case 1:
+			offset += filp->f_pos;
+		case 0:
+			if (offset >= 0)
+				break;
+		default:
+			offset = -EINVAL;
+			goto out;
+	}
+	if (offset != filp->f_pos) {
+		filp->f_pos = offset;
+		((struct nfs_open_context *)filp->private_data)->dir_cookie = 0;
+	}
+out:
+	up(&filp->f_dentry->d_inode->i_sem);
+	return offset;
+}
+
 /*
  * All directory operations under NFS are synchronous, so fsync()
  * is a dummy operation.
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 68df803..d6a30c8 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -517,7 +517,7 @@ retry:
 	result = tot_bytes;
 
 out:
-	nfs_end_data_update_defer(inode);
+	nfs_end_data_update(inode);
 	nfs_writedata_free(wdata);
 	return result;
 
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 55c9075..5621ba9 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -71,6 +71,18 @@ struct inode_operations nfs_file_inode_operations = {
 	.setattr	= nfs_setattr,
 };
 
+#ifdef CONFIG_NFS_V3
+struct inode_operations nfs3_file_inode_operations = {
+	.permission	= nfs_permission,
+	.getattr	= nfs_getattr,
+	.setattr	= nfs_setattr,
+	.listxattr	= nfs3_listxattr,
+	.getxattr	= nfs3_getxattr,
+	.setxattr	= nfs3_setxattr,
+	.removexattr	= nfs3_removexattr,
+};
+#endif  /* CONFIG_NFS_v3 */
+
 /* Hack for future NFS swap support */
 #ifndef IS_SWAPFILE
 # define IS_SWAPFILE(inode)	(0)
@@ -116,6 +128,21 @@ nfs_file_release(struct inode *inode, struct file *filp)
 }
 
 /**
+ * nfs_revalidate_file - Revalidate the page cache & related metadata
+ * @inode - pointer to inode struct
+ * @file - pointer to file
+ */
+static int nfs_revalidate_file(struct inode *inode, struct file *filp)
+{
+	int retval = 0;
+
+	if ((NFS_FLAGS(inode) & NFS_INO_REVAL_PAGECACHE) || nfs_attribute_timeout(inode))
+		retval = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
+	nfs_revalidate_mapping(inode, filp->f_mapping);
+	return 0;
+}
+
+/**
  * nfs_revalidate_size - Revalidate the file size
  * @inode - pointer to inode struct
  * @file - pointer to struct file
@@ -137,7 +164,8 @@ static int nfs_revalidate_file_size(struct inode *inode, struct file *filp)
 		goto force_reval;
 	if (nfsi->npages != 0)
 		return 0;
-	return nfs_revalidate_inode(server, inode);
+	if (!(NFS_FLAGS(inode) & NFS_INO_REVAL_PAGECACHE) && !nfs_attribute_timeout(inode))
+		return 0;
 force_reval:
 	return __nfs_revalidate_inode(server, inode);
 }
@@ -198,7 +226,7 @@ nfs_file_read(struct kiocb *iocb, char __user * buf, size_t count, loff_t pos)
 		dentry->d_parent->d_name.name, dentry->d_name.name,
 		(unsigned long) count, (unsigned long) pos);
 
-	result = nfs_revalidate_inode(NFS_SERVER(inode), inode);
+	result = nfs_revalidate_file(inode, iocb->ki_filp);
 	if (!result)
 		result = generic_file_aio_read(iocb, buf, count, pos);
 	return result;
@@ -216,7 +244,7 @@ nfs_file_sendfile(struct file *filp, loff_t *ppos, size_t count,
 		dentry->d_parent->d_name.name, dentry->d_name.name,
 		(unsigned long) count, (unsigned long long) *ppos);
 
-	res = nfs_revalidate_inode(NFS_SERVER(inode), inode);
+	res = nfs_revalidate_file(inode, filp);
 	if (!res)
 		res = generic_file_sendfile(filp, ppos, count, actor, target);
 	return res;
@@ -232,7 +260,7 @@ nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
 	dfprintk(VFS, "nfs: mmap(%s/%s)\n",
 		dentry->d_parent->d_name.name, dentry->d_name.name);
 
-	status = nfs_revalidate_inode(NFS_SERVER(inode), inode);
+	status = nfs_revalidate_file(inode, file);
 	if (!status)
 		status = generic_file_mmap(file, vma);
 	return status;
@@ -321,9 +349,15 @@ nfs_file_write(struct kiocb *iocb, const char __user *buf, size_t count, loff_t
 	result = -EBUSY;
 	if (IS_SWAPFILE(inode))
 		goto out_swapfile;
-	result = nfs_revalidate_inode(NFS_SERVER(inode), inode);
-	if (result)
-		goto out;
+	/*
+	 * O_APPEND implies that we must revalidate the file length.
+	 */
+	if (iocb->ki_filp->f_flags & O_APPEND) {
+		result = nfs_revalidate_file_size(inode, iocb->ki_filp);
+		if (result)
+			goto out;
+	}
+	nfs_revalidate_mapping(inode, iocb->ki_filp->f_mapping);
 
 	result = count;
 	if (!count)
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index 87f4f9a..ffb8df9 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -50,6 +50,7 @@
 #include <linux/nfs_fs.h>
 
 #include <linux/nfs_idmap.h>
+#include "nfs4_fs.h"
 
 #define IDMAP_HASH_SZ          128
 
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index f2317f3..4845911 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -39,6 +39,7 @@
 #include <asm/system.h>
 #include <asm/uaccess.h>
 
+#include "nfs4_fs.h"
 #include "delegation.h"
 
 #define NFSDBG_FACILITY		NFSDBG_VFS
@@ -63,6 +64,7 @@ static void nfs_clear_inode(struct inode *);
 static void nfs_umount_begin(struct super_block *);
 static int  nfs_statfs(struct super_block *, struct kstatfs *);
 static int  nfs_show_options(struct seq_file *, struct vfsmount *);
+static void nfs_zap_acl_cache(struct inode *);
 
 static struct rpc_program	nfs_program;
 
@@ -106,6 +108,21 @@ static struct rpc_program	nfs_program = {
 	.pipe_dir_name		= "/nfs",
 };
 
+#ifdef CONFIG_NFS_V3_ACL
+static struct rpc_stat		nfsacl_rpcstat = { &nfsacl_program };
+static struct rpc_version *	nfsacl_version[] = {
+	[3]			= &nfsacl_version3,
+};
+
+struct rpc_program		nfsacl_program = {
+	.name =			"nfsacl",
+	.number =		NFS_ACL_PROGRAM,
+	.nrvers =		sizeof(nfsacl_version) / sizeof(nfsacl_version[0]),
+	.version =		nfsacl_version,
+	.stats =		&nfsacl_rpcstat,
+};
+#endif  /* CONFIG_NFS_V3_ACL */
+
 static inline unsigned long
 nfs_fattr_to_ino_t(struct nfs_fattr *fattr)
 {
@@ -118,7 +135,7 @@ nfs_write_inode(struct inode *inode, int sync)
 	int flags = sync ? FLUSH_WAIT : 0;
 	int ret;
 
-	ret = nfs_commit_inode(inode, 0, 0, flags);
+	ret = nfs_commit_inode(inode, flags);
 	if (ret < 0)
 		return ret;
 	return 0;
@@ -140,10 +157,6 @@ nfs_delete_inode(struct inode * inode)
 	clear_inode(inode);
 }
 
-/*
- * For the moment, the only task for the NFS clear_inode method is to
- * release the mmap credential
- */
 static void
 nfs_clear_inode(struct inode *inode)
 {
@@ -152,6 +165,7 @@ nfs_clear_inode(struct inode *inode)
 
 	nfs_wb_all(inode);
 	BUG_ON (!list_empty(&nfsi->open_files));
+	nfs_zap_acl_cache(inode);
 	cred = nfsi->cache_access.cred;
 	if (cred)
 		put_rpccred(cred);
@@ -161,11 +175,13 @@ nfs_clear_inode(struct inode *inode)
 void
 nfs_umount_begin(struct super_block *sb)
 {
-	struct nfs_server *server = NFS_SB(sb);
-	struct rpc_clnt	*rpc;
+	struct rpc_clnt	*rpc = NFS_SB(sb)->client;
 
 	/* -EIO all pending I/O */
-	if ((rpc = server->client) != NULL)
+	if (!IS_ERR(rpc))
+		rpc_killall_tasks(rpc);
+	rpc = NFS_SB(sb)->client_acl;
+	if (!IS_ERR(rpc))
 		rpc_killall_tasks(rpc);
 }
 
@@ -366,13 +382,15 @@ nfs_create_client(struct nfs_server *server, const struct nfs_mount_data *data)
 	xprt = xprt_create_proto(tcp ? IPPROTO_TCP : IPPROTO_UDP,
 				 &server->addr, &timeparms);
 	if (IS_ERR(xprt)) {
-		printk(KERN_WARNING "NFS: cannot create RPC transport.\n");
+		dprintk("%s: cannot create RPC transport. Error = %ld\n",
+				__FUNCTION__, PTR_ERR(xprt));
 		return (struct rpc_clnt *)xprt;
 	}
 	clnt = rpc_create_client(xprt, server->hostname, &nfs_program,
 				 server->rpc_ops->version, data->pseudoflavor);
 	if (IS_ERR(clnt)) {
-		printk(KERN_WARNING "NFS: cannot create RPC client.\n");
+		dprintk("%s: cannot create RPC client. Error = %ld\n",
+				__FUNCTION__, PTR_ERR(xprt));
 		goto out_fail;
 	}
 
@@ -383,7 +401,6 @@ nfs_create_client(struct nfs_server *server, const struct nfs_mount_data *data)
 	return clnt;
 
 out_fail:
-	xprt_destroy(xprt);
 	return clnt;
 }
 
@@ -427,21 +444,16 @@ nfs_fill_super(struct super_block *sb, struct nfs_mount_data *data, int silent)
 
 	/* Check NFS protocol revision and initialize RPC op vector
 	 * and file handle pool. */
-	if (server->flags & NFS_MOUNT_VER3) {
 #ifdef CONFIG_NFS_V3
+	if (server->flags & NFS_MOUNT_VER3) {
 		server->rpc_ops = &nfs_v3_clientops;
 		server->caps |= NFS_CAP_READDIRPLUS;
-		if (data->version < 4) {
-			printk(KERN_NOTICE "NFS: NFSv3 not supported by mount program.\n");
-			return -EIO;
-		}
-#else
-		printk(KERN_NOTICE "NFS: NFSv3 not supported.\n");
-		return -EIO;
-#endif
 	} else {
 		server->rpc_ops = &nfs_v2_clientops;
 	}
+#else
+	server->rpc_ops = &nfs_v2_clientops;
+#endif
 
 	/* Fill in pseudoflavor for mount version < 5 */
 	if (!(data->flags & NFS_MOUNT_SECFLAVOUR))
@@ -455,17 +467,34 @@ nfs_fill_super(struct super_block *sb, struct nfs_mount_data *data, int silent)
 		return PTR_ERR(server->client);
 	/* RFC 2623, sec 2.3.2 */
 	if (authflavor != RPC_AUTH_UNIX) {
+		struct rpc_auth *auth;
+
 		server->client_sys = rpc_clone_client(server->client);
 		if (IS_ERR(server->client_sys))
 			return PTR_ERR(server->client_sys);
-		if (!rpcauth_create(RPC_AUTH_UNIX, server->client_sys))
-			return -ENOMEM;
+		auth = rpcauth_create(RPC_AUTH_UNIX, server->client_sys);
+		if (IS_ERR(auth))
+			return PTR_ERR(auth);
 	} else {
 		atomic_inc(&server->client->cl_count);
 		server->client_sys = server->client;
 	}
-
 	if (server->flags & NFS_MOUNT_VER3) {
+#ifdef CONFIG_NFS_V3_ACL
+		if (!(server->flags & NFS_MOUNT_NOACL)) {
+			server->client_acl = rpc_bind_new_program(server->client, &nfsacl_program, 3);
+			/* No errors! Assume that Sun nfsacls are supported */
+			if (!IS_ERR(server->client_acl))
+				server->caps |= NFS_CAP_ACLS;
+		}
+#else
+		server->flags &= ~NFS_MOUNT_NOACL;
+#endif /* CONFIG_NFS_V3_ACL */
+		/*
+		 * The VFS shouldn't apply the umask to mode bits. We will
+		 * do so ourselves when necessary.
+		 */
+		sb->s_flags |= MS_POSIXACL;
 		if (server->namelen == 0 || server->namelen > NFS3_MAXNAMLEN)
 			server->namelen = NFS3_MAXNAMLEN;
 		sb->s_time_gran = 1;
@@ -549,6 +578,7 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
 		{ NFS_MOUNT_NOCTO, ",nocto", "" },
 		{ NFS_MOUNT_NOAC, ",noac", "" },
 		{ NFS_MOUNT_NONLM, ",nolock", ",lock" },
+		{ NFS_MOUNT_NOACL, ",noacl", "" },
 		{ 0, NULL, NULL }
 	};
 	struct proc_nfs_info *nfs_infop;
@@ -590,9 +620,19 @@ nfs_zap_caches(struct inode *inode)
 
 	memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode)));
 	if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))
-		nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS;
+		nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE;
 	else
-		nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS;
+		nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE;
+}
+
+static void nfs_zap_acl_cache(struct inode *inode)
+{
+	void (*clear_acl_cache)(struct inode *);
+
+	clear_acl_cache = NFS_PROTO(inode)->clear_acl_cache;
+	if (clear_acl_cache != NULL)
+		clear_acl_cache(inode);
+	NFS_I(inode)->flags &= ~NFS_INO_INVALID_ACL;
 }
 
 /*
@@ -689,7 +729,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
 		/* Why so? Because we want revalidate for devices/FIFOs, and
 		 * that's precisely what we have in nfs_file_inode_operations.
 		 */
-		inode->i_op = &nfs_file_inode_operations;
+		inode->i_op = NFS_SB(sb)->rpc_ops->file_inode_ops;
 		if (S_ISREG(inode->i_mode)) {
 			inode->i_fop = &nfs_file_operations;
 			inode->i_data.a_ops = &nfs_file_aops;
@@ -792,7 +832,7 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr)
 		}
 	}
 	if ((attr->ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID)) != 0)
-		NFS_FLAGS(inode) |= NFS_INO_INVALID_ACCESS;
+		NFS_FLAGS(inode) |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
 	nfs_end_data_update(inode);
 	unlock_kernel();
 	return error;
@@ -851,7 +891,7 @@ struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, struct rp
 		ctx->state = NULL;
 		ctx->lockowner = current->files;
 		ctx->error = 0;
-		init_waitqueue_head(&ctx->waitq);
+		ctx->dir_cookie = 0;
 	}
 	return ctx;
 }
@@ -1015,6 +1055,7 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
 		goto out;
 	}
 	flags = nfsi->flags;
+	nfsi->flags &= ~NFS_INO_REVAL_PAGECACHE;
 	/*
 	 * We may need to keep the attributes marked as invalid if
 	 * we raced with nfs_end_attr_update().
@@ -1022,21 +1063,9 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
 	if (verifier == nfsi->cache_change_attribute)
 		nfsi->flags &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
 	/* Do the page cache invalidation */
-	if (flags & NFS_INO_INVALID_DATA) {
-		if (S_ISREG(inode->i_mode)) {
-			if (filemap_fdatawrite(inode->i_mapping) == 0)
-				filemap_fdatawait(inode->i_mapping);
-			nfs_wb_all(inode);
-		}
-		nfsi->flags &= ~NFS_INO_INVALID_DATA;
-		invalidate_inode_pages2(inode->i_mapping);
-		memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode)));
-		dfprintk(PAGECACHE, "NFS: (%s/%Ld) data cache invalidated\n",
-				inode->i_sb->s_id,
-				(long long)NFS_FILEID(inode));
-		/* This ensures we revalidate dentries */
-		nfsi->cache_change_attribute++;
-	}
+	nfs_revalidate_mapping(inode, inode->i_mapping);
+	if (flags & NFS_INO_INVALID_ACL)
+		nfs_zap_acl_cache(inode);
 	dfprintk(PAGECACHE, "NFS: (%s/%Ld) revalidation complete\n",
 		inode->i_sb->s_id,
 		(long long)NFS_FILEID(inode));
@@ -1074,6 +1103,34 @@ int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
 }
 
 /**
+ * nfs_revalidate_mapping - Revalidate the pagecache
+ * @inode - pointer to host inode
+ * @mapping - pointer to mapping
+ */
+void nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
+{
+	struct nfs_inode *nfsi = NFS_I(inode);
+
+	if (nfsi->flags & NFS_INO_INVALID_DATA) {
+		if (S_ISREG(inode->i_mode)) {
+			if (filemap_fdatawrite(mapping) == 0)
+				filemap_fdatawait(mapping);
+			nfs_wb_all(inode);
+		}
+		invalidate_inode_pages2(mapping);
+		nfsi->flags &= ~NFS_INO_INVALID_DATA;
+		if (S_ISDIR(inode->i_mode)) {
+			memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
+			/* This ensures we revalidate child dentries */
+			nfsi->cache_change_attribute++;
+		}
+		dfprintk(PAGECACHE, "NFS: (%s/%Ld) data cache invalidated\n",
+				inode->i_sb->s_id,
+				(long long)NFS_FILEID(inode));
+	}
+}
+
+/**
  * nfs_begin_data_update
  * @inode - pointer to inode
  * Declare that a set of operations will update file data on the server
@@ -1106,27 +1163,6 @@ void nfs_end_data_update(struct inode *inode)
 }
 
 /**
- * nfs_end_data_update_defer
- * @inode - pointer to inode
- * Declare end of the operations that will update file data
- * This will defer marking the inode as needing revalidation
- * unless there are no other pending updates.
- */
-void nfs_end_data_update_defer(struct inode *inode)
-{
-	struct nfs_inode *nfsi = NFS_I(inode);
-
-	if (atomic_dec_and_test(&nfsi->data_updates)) {
-		/* Mark the attribute cache for revalidation */
-		nfsi->flags |= NFS_INO_INVALID_ATTR;
-		/* Directories and symlinks: invalidate page cache too */
-		if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))
-			nfsi->flags |= NFS_INO_INVALID_DATA;
-		nfsi->cache_change_attribute ++;
-	}
-}
-
-/**
  * nfs_refresh_inode - verify consistency of the inode attribute cache
  * @inode - pointer to inode
  * @fattr - updated attributes
@@ -1152,8 +1188,11 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
 		if ((fattr->valid & NFS_ATTR_PRE_CHANGE) != 0
 				&& nfsi->change_attr == fattr->pre_change_attr)
 			nfsi->change_attr = fattr->change_attr;
-		if (!data_unstable && nfsi->change_attr != fattr->change_attr)
+		if (nfsi->change_attr != fattr->change_attr) {
 			nfsi->flags |= NFS_INO_INVALID_ATTR;
+			if (!data_unstable)
+				nfsi->flags |= NFS_INO_REVAL_PAGECACHE;
+		}
 	}
 
 	if ((fattr->valid & NFS_ATTR_FATTR) == 0)
@@ -1176,18 +1215,22 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
 	}
 
 	/* Verify a few of the more important attributes */
-	if (!data_unstable) {
-		if (!timespec_equal(&inode->i_mtime, &fattr->mtime)
-				|| cur_size != new_isize)
-			nfsi->flags |= NFS_INO_INVALID_ATTR;
-	} else if (S_ISREG(inode->i_mode) && new_isize > cur_size)
-			nfsi->flags |= NFS_INO_INVALID_ATTR;
+	if (!timespec_equal(&inode->i_mtime, &fattr->mtime)) {
+		nfsi->flags |= NFS_INO_INVALID_ATTR;
+		if (!data_unstable)
+			nfsi->flags |= NFS_INO_REVAL_PAGECACHE;
+	}
+	if (cur_size != new_isize) {
+		nfsi->flags |= NFS_INO_INVALID_ATTR;
+		if (nfsi->npages == 0)
+			nfsi->flags |= NFS_INO_REVAL_PAGECACHE;
+	}
 
 	/* Have any file permissions changed? */
 	if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)
 			|| inode->i_uid != fattr->uid
 			|| inode->i_gid != fattr->gid)
-		nfsi->flags |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS;
+		nfsi->flags |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
 
 	/* Has the link count changed? */
 	if (inode->i_nlink != fattr->nlink)
@@ -1215,10 +1258,8 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
 static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsigned long verifier)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
-	__u64		new_size;
-	loff_t		new_isize;
+	loff_t cur_isize, new_isize;
 	unsigned int	invalid = 0;
-	loff_t		cur_isize;
 	int data_unstable;
 
 	dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",
@@ -1251,61 +1292,56 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
 	/* Are we racing with known updates of the metadata on the server? */
 	data_unstable = ! nfs_verify_change_attribute(inode, verifier);
 
-	/* Check if the file size agrees */
-	new_size = fattr->size;
+	/* Check if our cached file size is stale */
  	new_isize = nfs_size_to_loff_t(fattr->size);
 	cur_isize = i_size_read(inode);
-	if (cur_isize != new_size) {
-#ifdef NFS_DEBUG_VERBOSE
-		printk(KERN_DEBUG "NFS: isize change on %s/%ld\n", inode->i_sb->s_id, inode->i_ino);
-#endif
-		/*
-		 * If we have pending writebacks, things can get
-		 * messy.
-		 */
-		if (S_ISREG(inode->i_mode) && data_unstable) {
-			if (new_isize > cur_isize) {
+	if (new_isize != cur_isize) {
+		/* Do we perhaps have any outstanding writes? */
+		if (nfsi->npages == 0) {
+			/* No, but did we race with nfs_end_data_update()? */
+			if (verifier  ==  nfsi->cache_change_attribute) {
 				inode->i_size = new_isize;
-				invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
+				invalid |= NFS_INO_INVALID_DATA;
 			}
-		} else {
+			invalid |= NFS_INO_INVALID_ATTR;
+		} else if (new_isize > cur_isize) {
 			inode->i_size = new_isize;
 			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
 		}
+		dprintk("NFS: isize change on server for file %s/%ld\n",
+				inode->i_sb->s_id, inode->i_ino);
 	}
 
-	/*
-	 * Note: we don't check inode->i_mtime since pipes etc.
-	 *       can change this value in VFS without requiring a
-	 *	 cache revalidation.
-	 */
+	/* Check if the mtime agrees */
 	if (!timespec_equal(&inode->i_mtime, &fattr->mtime)) {
 		memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime));
-#ifdef NFS_DEBUG_VERBOSE
-		printk(KERN_DEBUG "NFS: mtime change on %s/%ld\n", inode->i_sb->s_id, inode->i_ino);
-#endif
+		dprintk("NFS: mtime change on server for file %s/%ld\n",
+				inode->i_sb->s_id, inode->i_ino);
 		if (!data_unstable)
 			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
 	}
 
 	if ((fattr->valid & NFS_ATTR_FATTR_V4)
 	    && nfsi->change_attr != fattr->change_attr) {
-#ifdef NFS_DEBUG_VERBOSE
-		printk(KERN_DEBUG "NFS: change_attr change on %s/%ld\n",
+		dprintk("NFS: change_attr change on server for file %s/%ld\n",
 		       inode->i_sb->s_id, inode->i_ino);
-#endif
 		nfsi->change_attr = fattr->change_attr;
 		if (!data_unstable)
-			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS;
+			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
 	}
 
-	memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime));
+	/* If ctime has changed we should definitely clear access+acl caches */
+	if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) {
+		if (!data_unstable)
+			invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+		memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime));
+	}
 	memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
 
 	if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO) ||
 	    inode->i_uid != fattr->uid ||
 	    inode->i_gid != fattr->gid)
-		invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS;
+		invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
 
 	inode->i_mode = fattr->mode;
 	inode->i_nlink = fattr->nlink;
@@ -1385,74 +1421,95 @@ static struct super_block *nfs_get_sb(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *raw_data)
 {
 	int error;
-	struct nfs_server *server;
+	struct nfs_server *server = NULL;
 	struct super_block *s;
 	struct nfs_fh *root;
 	struct nfs_mount_data *data = raw_data;
 
-	if (!data) {
-		printk("nfs_read_super: missing data argument\n");
-		return ERR_PTR(-EINVAL);
+	s = ERR_PTR(-EINVAL);
+	if (data == NULL) {
+		dprintk("%s: missing data argument\n", __FUNCTION__);
+		goto out_err;
+	}
+	if (data->version <= 0 || data->version > NFS_MOUNT_VERSION) {
+		dprintk("%s: bad mount version\n", __FUNCTION__);
+		goto out_err;
 	}
+	switch (data->version) {
+		case 1:
+			data->namlen = 0;
+		case 2:
+			data->bsize  = 0;
+		case 3:
+			if (data->flags & NFS_MOUNT_VER3) {
+				dprintk("%s: mount structure version %d does not support NFSv3\n",
+						__FUNCTION__,
+						data->version);
+				goto out_err;
+			}
+			data->root.size = NFS2_FHSIZE;
+			memcpy(data->root.data, data->old_root.data, NFS2_FHSIZE);
+		case 4:
+			if (data->flags & NFS_MOUNT_SECFLAVOUR) {
+				dprintk("%s: mount structure version %d does not support strong security\n",
+						__FUNCTION__,
+						data->version);
+				goto out_err;
+			}
+		case 5:
+			memset(data->context, 0, sizeof(data->context));
+	}
+#ifndef CONFIG_NFS_V3
+	/* If NFSv3 is not compiled in, return -EPROTONOSUPPORT */
+	s = ERR_PTR(-EPROTONOSUPPORT);
+	if (data->flags & NFS_MOUNT_VER3) {
+		dprintk("%s: NFSv3 not compiled into kernel\n", __FUNCTION__);
+		goto out_err;
+	}
+#endif /* CONFIG_NFS_V3 */
 
+	s = ERR_PTR(-ENOMEM);
 	server = kmalloc(sizeof(struct nfs_server), GFP_KERNEL);
 	if (!server)
-		return ERR_PTR(-ENOMEM);
+		goto out_err;
 	memset(server, 0, sizeof(struct nfs_server));
 	/* Zero out the NFS state stuff */
 	init_nfsv4_state(server);
-
-	if (data->version != NFS_MOUNT_VERSION) {
-		printk("nfs warning: mount version %s than kernel\n",
-			data->version < NFS_MOUNT_VERSION ? "older" : "newer");
-		if (data->version < 2)
-			data->namlen = 0;
-		if (data->version < 3)
-			data->bsize  = 0;
-		if (data->version < 4) {
-			data->flags &= ~NFS_MOUNT_VER3;
-			data->root.size = NFS2_FHSIZE;
-			memcpy(data->root.data, data->old_root.data, NFS2_FHSIZE);
-		}
-		if (data->version < 5)
-			data->flags &= ~NFS_MOUNT_SECFLAVOUR;
-	}
+	server->client = server->client_sys = server->client_acl = ERR_PTR(-EINVAL);
 
 	root = &server->fh;
 	if (data->flags & NFS_MOUNT_VER3)
 		root->size = data->root.size;
 	else
 		root->size = NFS2_FHSIZE;
+	s = ERR_PTR(-EINVAL);
 	if (root->size > sizeof(root->data)) {
-		printk("nfs_get_sb: invalid root filehandle\n");
-		kfree(server);
-		return ERR_PTR(-EINVAL);
+		dprintk("%s: invalid root filehandle\n", __FUNCTION__);
+		goto out_err;
 	}
 	memcpy(root->data, data->root.data, root->size);
 
 	/* We now require that the mount process passes the remote address */
 	memcpy(&server->addr, &data->addr, sizeof(server->addr));
 	if (server->addr.sin_addr.s_addr == INADDR_ANY) {
-		printk("NFS: mount program didn't pass remote address!\n");
-		kfree(server);
-		return ERR_PTR(-EINVAL);
+		dprintk("%s: mount program didn't pass remote address!\n",
+				__FUNCTION__);
+		goto out_err;
 	}
 
-	s = sget(fs_type, nfs_compare_super, nfs_set_super, server);
-
-	if (IS_ERR(s) || s->s_root) {
-		kfree(server);
-		return s;
+	/* Fire up rpciod if not yet running */
+	s = ERR_PTR(rpciod_up());
+	if (IS_ERR(s)) {
+		dprintk("%s: couldn't start rpciod! Error = %ld\n",
+				__FUNCTION__, PTR_ERR(s));
+		goto out_err;
 	}
 
-	s->s_flags = flags;
+	s = sget(fs_type, nfs_compare_super, nfs_set_super, server);
+	if (IS_ERR(s) || s->s_root)
+		goto out_rpciod_down;
 
-	/* Fire up rpciod if not yet running */
-	if (rpciod_up() != 0) {
-		printk(KERN_WARNING "NFS: couldn't start rpciod!\n");
-		kfree(server);
-		return ERR_PTR(-EIO);
-	}
+	s->s_flags = flags;
 
 	error = nfs_fill_super(s, data, flags & MS_VERBOSE ? 1 : 0);
 	if (error) {
@@ -1462,6 +1519,11 @@ static struct super_block *nfs_get_sb(struct file_system_type *fs_type,
 	}
 	s->s_flags |= MS_ACTIVE;
 	return s;
+out_rpciod_down:
+	rpciod_down();
+out_err:
+	kfree(server);
+	return s;
 }
 
 static void nfs_kill_super(struct super_block *s)
@@ -1470,10 +1532,12 @@ static void nfs_kill_super(struct super_block *s)
 
 	kill_anon_super(s);
 
-	if (server->client != NULL && !IS_ERR(server->client))
+	if (!IS_ERR(server->client))
 		rpc_shutdown_client(server->client);
-	if (server->client_sys != NULL && !IS_ERR(server->client_sys))
+	if (!IS_ERR(server->client_sys))
 		rpc_shutdown_client(server->client_sys);
+	if (!IS_ERR(server->client_acl))
+		rpc_shutdown_client(server->client_acl);
 
 	if (!(server->flags & NFS_MOUNT_NONLM))
 		lockd_down();	/* release rpc.lockd */
@@ -1594,15 +1658,19 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
 
 	clp = nfs4_get_client(&server->addr.sin_addr);
 	if (!clp) {
-		printk(KERN_WARNING "NFS: failed to create NFS4 client.\n");
+		dprintk("%s: failed to create NFS4 client.\n", __FUNCTION__);
 		return -EIO;
 	}
 
 	/* Now create transport and client */
 	authflavour = RPC_AUTH_UNIX;
 	if (data->auth_flavourlen != 0) {
-		if (data->auth_flavourlen > 1)
-			printk(KERN_INFO "NFS: cannot yet deal with multiple auth flavours.\n");
+		if (data->auth_flavourlen != 1) {
+			dprintk("%s: Invalid number of RPC auth flavours %d.\n",
+					__FUNCTION__, data->auth_flavourlen);
+			err = -EINVAL;
+			goto out_fail;
+		}
 		if (copy_from_user(&authflavour, data->auth_flavours, sizeof(authflavour))) {
 			err = -EFAULT;
 			goto out_fail;
@@ -1610,21 +1678,22 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
 	}
 
 	down_write(&clp->cl_sem);
-	if (clp->cl_rpcclient == NULL) {
+	if (IS_ERR(clp->cl_rpcclient)) {
 		xprt = xprt_create_proto(proto, &server->addr, &timeparms);
 		if (IS_ERR(xprt)) {
 			up_write(&clp->cl_sem);
-			printk(KERN_WARNING "NFS: cannot create RPC transport.\n");
 			err = PTR_ERR(xprt);
+			dprintk("%s: cannot create RPC transport. Error = %d\n",
+					__FUNCTION__, err);
 			goto out_fail;
 		}
 		clnt = rpc_create_client(xprt, server->hostname, &nfs_program,
 				server->rpc_ops->version, authflavour);
 		if (IS_ERR(clnt)) {
 			up_write(&clp->cl_sem);
-			printk(KERN_WARNING "NFS: cannot create RPC client.\n");
-			xprt_destroy(xprt);
 			err = PTR_ERR(clnt);
+			dprintk("%s: cannot create RPC client. Error = %d\n",
+					__FUNCTION__, err);
 			goto out_fail;
 		}
 		clnt->cl_intr     = 1;
@@ -1656,21 +1725,26 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
 	clp = NULL;
 
 	if (IS_ERR(clnt)) {
-		printk(KERN_WARNING "NFS: cannot create RPC client.\n");
-		return PTR_ERR(clnt);
+		err = PTR_ERR(clnt);
+		dprintk("%s: cannot create RPC client. Error = %d\n",
+				__FUNCTION__, err);
+		return err;
 	}
 
 	server->client    = clnt;
 
 	if (server->nfs4_state->cl_idmap == NULL) {
-		printk(KERN_WARNING "NFS: failed to create idmapper.\n");
+		dprintk("%s: failed to create idmapper.\n", __FUNCTION__);
 		return -ENOMEM;
 	}
 
 	if (clnt->cl_auth->au_flavor != authflavour) {
-		if (rpcauth_create(authflavour, clnt) == NULL) {
-			printk(KERN_WARNING "NFS: couldn't create credcache!\n");
-			return -ENOMEM;
+		struct rpc_auth *auth;
+
+		auth = rpcauth_create(authflavour, clnt);
+		if (IS_ERR(auth)) {
+			dprintk("%s: couldn't create credcache!\n", __FUNCTION__);
+			return PTR_ERR(auth);
 		}
 	}
 
@@ -1730,8 +1804,12 @@ static struct super_block *nfs4_get_sb(struct file_system_type *fs_type,
 	struct nfs4_mount_data *data = raw_data;
 	void *p;
 
-	if (!data) {
-		printk("nfs_read_super: missing data argument\n");
+	if (data == NULL) {
+		dprintk("%s: missing data argument\n", __FUNCTION__);
+		return ERR_PTR(-EINVAL);
+	}
+	if (data->version <= 0 || data->version > NFS4_MOUNT_VERSION) {
+		dprintk("%s: bad mount version\n", __FUNCTION__);
 		return ERR_PTR(-EINVAL);
 	}
 
@@ -1741,11 +1819,7 @@ static struct super_block *nfs4_get_sb(struct file_system_type *fs_type,
 	memset(server, 0, sizeof(struct nfs_server));
 	/* Zero out the NFS state stuff */
 	init_nfsv4_state(server);
-
-	if (data->version != NFS4_MOUNT_VERSION) {
-		printk("nfs warning: mount version %s than kernel\n",
-			data->version < NFS4_MOUNT_VERSION ? "older" : "newer");
-	}
+	server->client = server->client_sys = server->client_acl = ERR_PTR(-EINVAL);
 
 	p = nfs_copy_user_string(NULL, &data->hostname, 256);
 	if (IS_ERR(p))
@@ -1773,11 +1847,20 @@ static struct super_block *nfs4_get_sb(struct file_system_type *fs_type,
 	}
 	if (server->addr.sin_family != AF_INET ||
 	    server->addr.sin_addr.s_addr == INADDR_ANY) {
-		printk("NFS: mount program didn't pass remote IP address!\n");
+		dprintk("%s: mount program didn't pass remote IP address!\n",
+				__FUNCTION__);
 		s = ERR_PTR(-EINVAL);
 		goto out_free;
 	}
 
+	/* Fire up rpciod if not yet running */
+	s = ERR_PTR(rpciod_up());
+	if (IS_ERR(s)) {
+		dprintk("%s: couldn't start rpciod! Error = %ld\n",
+				__FUNCTION__, PTR_ERR(s));
+		goto out_free;
+	}
+
 	s = sget(fs_type, nfs4_compare_super, nfs_set_super, server);
 
 	if (IS_ERR(s) || s->s_root)
@@ -1785,13 +1868,6 @@ static struct super_block *nfs4_get_sb(struct file_system_type *fs_type,
 
 	s->s_flags = flags;
 
-	/* Fire up rpciod if not yet running */
-	if (rpciod_up() != 0) {
-		printk(KERN_WARNING "NFS: couldn't start rpciod!\n");
-		s = ERR_PTR(-EIO);
-		goto out_free;
-	}
-
 	error = nfs4_fill_super(s, data, flags & MS_VERBOSE ? 1 : 0);
 	if (error) {
 		up_write(&s->s_umount);
@@ -1875,6 +1951,13 @@ static struct inode *nfs_alloc_inode(struct super_block *sb)
 	if (!nfsi)
 		return NULL;
 	nfsi->flags = 0;
+#ifdef CONFIG_NFS_V3_ACL
+	nfsi->acl_access = ERR_PTR(-EAGAIN);
+	nfsi->acl_default = ERR_PTR(-EAGAIN);
+#endif
+#ifdef CONFIG_NFS_V4
+	nfsi->nfs4_acl = NULL;
+#endif /* CONFIG_NFS_V4 */
 	return &nfsi->vfs_inode;
 }
 
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index 9d3ddad..0e82617 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -80,9 +80,7 @@ mnt_create(char *hostname, struct sockaddr_in *srvaddr, int version,
 	clnt = rpc_create_client(xprt, hostname,
 				&mnt_program, version,
 				RPC_AUTH_UNIX);
-	if (IS_ERR(clnt)) {
-		xprt_destroy(xprt);
-	} else {
+	if (!IS_ERR(clnt)) {
 		clnt->cl_softrtry = 1;
 		clnt->cl_chatty   = 1;
 		clnt->cl_oneshot  = 1;
diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
new file mode 100644
index 0000000..ee3536f
--- /dev/null
+++ b/fs/nfs/nfs3acl.c
@@ -0,0 +1,403 @@
+#include <linux/fs.h>
+#include <linux/nfs.h>
+#include <linux/nfs3.h>
+#include <linux/nfs_fs.h>
+#include <linux/xattr_acl.h>
+#include <linux/nfsacl.h>
+
+#define NFSDBG_FACILITY	NFSDBG_PROC
+
+ssize_t nfs3_listxattr(struct dentry *dentry, char *buffer, size_t size)
+{
+	struct inode *inode = dentry->d_inode;
+	struct posix_acl *acl;
+	int pos=0, len=0;
+
+#	define output(s) do {						\
+			if (pos + sizeof(s) <= size) {			\
+				memcpy(buffer + pos, s, sizeof(s));	\
+				pos += sizeof(s);			\
+			}						\
+			len += sizeof(s);				\
+		} while(0)
+
+	acl = nfs3_proc_getacl(inode, ACL_TYPE_ACCESS);
+	if (IS_ERR(acl))
+		return PTR_ERR(acl);
+	if (acl) {
+		output("system.posix_acl_access");
+		posix_acl_release(acl);
+	}
+
+	if (S_ISDIR(inode->i_mode)) {
+		acl = nfs3_proc_getacl(inode, ACL_TYPE_DEFAULT);
+		if (IS_ERR(acl))
+			return PTR_ERR(acl);
+		if (acl) {
+			output("system.posix_acl_default");
+			posix_acl_release(acl);
+		}
+	}
+
+#	undef output
+
+	if (!buffer || len <= size)
+		return len;
+	return -ERANGE;
+}
+
+ssize_t nfs3_getxattr(struct dentry *dentry, const char *name,
+		void *buffer, size_t size)
+{
+	struct inode *inode = dentry->d_inode;
+	struct posix_acl *acl;
+	int type, error = 0;
+
+	if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0)
+		type = ACL_TYPE_ACCESS;
+	else if (strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0)
+		type = ACL_TYPE_DEFAULT;
+	else
+		return -EOPNOTSUPP;
+
+	acl = nfs3_proc_getacl(inode, type);
+	if (IS_ERR(acl))
+		return PTR_ERR(acl);
+	else if (acl) {
+		if (type == ACL_TYPE_ACCESS && acl->a_count == 0)
+			error = -ENODATA;
+		else
+			error = posix_acl_to_xattr(acl, buffer, size);
+		posix_acl_release(acl);
+	} else
+		error = -ENODATA;
+
+	return error;
+}
+
+int nfs3_setxattr(struct dentry *dentry, const char *name,
+	     const void *value, size_t size, int flags)
+{
+	struct inode *inode = dentry->d_inode;
+	struct posix_acl *acl;
+	int type, error;
+
+	if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0)
+		type = ACL_TYPE_ACCESS;
+	else if (strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0)
+		type = ACL_TYPE_DEFAULT;
+	else
+		return -EOPNOTSUPP;
+
+	acl = posix_acl_from_xattr(value, size);
+	if (IS_ERR(acl))
+		return PTR_ERR(acl);
+	error = nfs3_proc_setacl(inode, type, acl);
+	posix_acl_release(acl);
+
+	return error;
+}
+
+int nfs3_removexattr(struct dentry *dentry, const char *name)
+{
+	struct inode *inode = dentry->d_inode;
+	int type;
+
+	if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0)
+		type = ACL_TYPE_ACCESS;
+	else if (strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0)
+		type = ACL_TYPE_DEFAULT;
+	else
+		return -EOPNOTSUPP;
+
+	return nfs3_proc_setacl(inode, type, NULL);
+}
+
+static void __nfs3_forget_cached_acls(struct nfs_inode *nfsi)
+{
+	if (!IS_ERR(nfsi->acl_access)) {
+		posix_acl_release(nfsi->acl_access);
+		nfsi->acl_access = ERR_PTR(-EAGAIN);
+	}
+	if (!IS_ERR(nfsi->acl_default)) {
+		posix_acl_release(nfsi->acl_default);
+		nfsi->acl_default = ERR_PTR(-EAGAIN);
+	}
+}
+
+void nfs3_forget_cached_acls(struct inode *inode)
+{
+	dprintk("NFS: nfs3_forget_cached_acls(%s/%ld)\n", inode->i_sb->s_id,
+		inode->i_ino);
+	spin_lock(&inode->i_lock);
+	__nfs3_forget_cached_acls(NFS_I(inode));
+	spin_unlock(&inode->i_lock);
+}
+
+static struct posix_acl *nfs3_get_cached_acl(struct inode *inode, int type)
+{
+	struct nfs_inode *nfsi = NFS_I(inode);
+	struct posix_acl *acl = ERR_PTR(-EINVAL);
+
+	spin_lock(&inode->i_lock);
+	switch(type) {
+		case ACL_TYPE_ACCESS:
+			acl = nfsi->acl_access;
+			break;
+
+		case ACL_TYPE_DEFAULT:
+			acl = nfsi->acl_default;
+			break;
+
+		default:
+			goto out;
+	}
+	if (IS_ERR(acl))
+		acl = ERR_PTR(-EAGAIN);
+	else
+		acl = posix_acl_dup(acl);
+out:
+	spin_unlock(&inode->i_lock);
+	dprintk("NFS: nfs3_get_cached_acl(%s/%ld, %d) = %p\n", inode->i_sb->s_id,
+		inode->i_ino, type, acl);
+	return acl;
+}
+
+static void nfs3_cache_acls(struct inode *inode, struct posix_acl *acl,
+		    struct posix_acl *dfacl)
+{
+	struct nfs_inode *nfsi = NFS_I(inode);
+
+	dprintk("nfs3_cache_acls(%s/%ld, %p, %p)\n", inode->i_sb->s_id,
+		inode->i_ino, acl, dfacl);
+	spin_lock(&inode->i_lock);
+	__nfs3_forget_cached_acls(NFS_I(inode));
+	nfsi->acl_access = posix_acl_dup(acl);
+	nfsi->acl_default = posix_acl_dup(dfacl);
+	spin_unlock(&inode->i_lock);
+}
+
+struct posix_acl *nfs3_proc_getacl(struct inode *inode, int type)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	struct nfs_fattr fattr;
+	struct page *pages[NFSACL_MAXPAGES] = { };
+	struct nfs3_getaclargs args = {
+		.fh = NFS_FH(inode),
+		/* The xdr layer may allocate pages here. */
+		.pages = pages,
+	};
+	struct nfs3_getaclres res = {
+		.fattr =	&fattr,
+	};
+	struct posix_acl *acl;
+	int status, count;
+
+	if (!nfs_server_capable(inode, NFS_CAP_ACLS))
+		return ERR_PTR(-EOPNOTSUPP);
+
+	status = nfs_revalidate_inode(server, inode);
+	if (status < 0)
+		return ERR_PTR(status);
+	acl = nfs3_get_cached_acl(inode, type);
+	if (acl != ERR_PTR(-EAGAIN))
+		return acl;
+	acl = NULL;
+
+	/*
+	 * Only get the access acl when explicitly requested: We don't
+	 * need it for access decisions, and only some applications use
+	 * it. Applications which request the access acl first are not
+	 * penalized from this optimization.
+	 */
+	if (type == ACL_TYPE_ACCESS)
+		args.mask |= NFS_ACLCNT|NFS_ACL;
+	if (S_ISDIR(inode->i_mode))
+		args.mask |= NFS_DFACLCNT|NFS_DFACL;
+	if (args.mask == 0)
+		return NULL;
+
+	dprintk("NFS call getacl\n");
+	status = rpc_call(server->client_acl, ACLPROC3_GETACL,
+			  &args, &res, 0);
+	dprintk("NFS reply getacl: %d\n", status);
+
+	/* pages may have been allocated at the xdr layer. */
+	for (count = 0; count < NFSACL_MAXPAGES && args.pages[count]; count++)
+		__free_page(args.pages[count]);
+
+	switch (status) {
+		case 0:
+			status = nfs_refresh_inode(inode, &fattr);
+			break;
+		case -EPFNOSUPPORT:
+		case -EPROTONOSUPPORT:
+			dprintk("NFS_V3_ACL extension not supported; disabling\n");
+			server->caps &= ~NFS_CAP_ACLS;
+		case -ENOTSUPP:
+			status = -EOPNOTSUPP;
+		default:
+			goto getout;
+	}
+	if ((args.mask & res.mask) != args.mask) {
+		status = -EIO;
+		goto getout;
+	}
+
+	if (res.acl_access != NULL) {
+		if (posix_acl_equiv_mode(res.acl_access, NULL) == 0) {
+			posix_acl_release(res.acl_access);
+			res.acl_access = NULL;
+		}
+	}
+	nfs3_cache_acls(inode, res.acl_access, res.acl_default);
+
+	switch(type) {
+		case ACL_TYPE_ACCESS:
+			acl = res.acl_access;
+			res.acl_access = NULL;
+			break;
+
+		case ACL_TYPE_DEFAULT:
+			acl = res.acl_default;
+			res.acl_default = NULL;
+	}
+
+getout:
+	posix_acl_release(res.acl_access);
+	posix_acl_release(res.acl_default);
+
+	if (status != 0) {
+		posix_acl_release(acl);
+		acl = ERR_PTR(status);
+	}
+	return acl;
+}
+
+static int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
+		  struct posix_acl *dfacl)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	struct nfs_fattr fattr;
+	struct page *pages[NFSACL_MAXPAGES] = { };
+	struct nfs3_setaclargs args = {
+		.inode = inode,
+		.mask = NFS_ACL,
+		.acl_access = acl,
+		.pages = pages,
+	};
+	int status, count;
+
+	status = -EOPNOTSUPP;
+	if (!nfs_server_capable(inode, NFS_CAP_ACLS))
+		goto out;
+
+	/* We are doing this here, because XDR marshalling can only
+	   return -ENOMEM. */
+	status = -ENOSPC;
+	if (acl != NULL && acl->a_count > NFS_ACL_MAX_ENTRIES)
+		goto out;
+	if (dfacl != NULL && dfacl->a_count > NFS_ACL_MAX_ENTRIES)
+		goto out;
+	if (S_ISDIR(inode->i_mode)) {
+		args.mask |= NFS_DFACL;
+		args.acl_default = dfacl;
+	}
+
+	dprintk("NFS call setacl\n");
+	nfs_begin_data_update(inode);
+	status = rpc_call(server->client_acl, ACLPROC3_SETACL,
+			  &args, &fattr, 0);
+	NFS_FLAGS(inode) |= NFS_INO_INVALID_ACCESS;
+	nfs_end_data_update(inode);
+	dprintk("NFS reply setacl: %d\n", status);
+
+	/* pages may have been allocated at the xdr layer. */
+	for (count = 0; count < NFSACL_MAXPAGES && args.pages[count]; count++)
+		__free_page(args.pages[count]);
+
+	switch (status) {
+		case 0:
+			status = nfs_refresh_inode(inode, &fattr);
+			break;
+		case -EPFNOSUPPORT:
+		case -EPROTONOSUPPORT:
+			dprintk("NFS_V3_ACL SETACL RPC not supported"
+					"(will not retry)\n");
+			server->caps &= ~NFS_CAP_ACLS;
+		case -ENOTSUPP:
+			status = -EOPNOTSUPP;
+	}
+out:
+	return status;
+}
+
+int nfs3_proc_setacl(struct inode *inode, int type, struct posix_acl *acl)
+{
+	struct posix_acl *alloc = NULL, *dfacl = NULL;
+	int status;
+
+	if (S_ISDIR(inode->i_mode)) {
+		switch(type) {
+			case ACL_TYPE_ACCESS:
+				alloc = dfacl = nfs3_proc_getacl(inode,
+						ACL_TYPE_DEFAULT);
+				if (IS_ERR(alloc))
+					goto fail;
+				break;
+
+			case ACL_TYPE_DEFAULT:
+				dfacl = acl;
+				alloc = acl = nfs3_proc_getacl(inode,
+						ACL_TYPE_ACCESS);
+				if (IS_ERR(alloc))
+					goto fail;
+				break;
+
+			default:
+				return -EINVAL;
+		}
+	} else if (type != ACL_TYPE_ACCESS)
+			return -EINVAL;
+
+	if (acl == NULL) {
+		alloc = acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
+		if (IS_ERR(alloc))
+			goto fail;
+	}
+	status = nfs3_proc_setacls(inode, acl, dfacl);
+	posix_acl_release(alloc);
+	return status;
+
+fail:
+	return PTR_ERR(alloc);
+}
+
+int nfs3_proc_set_default_acl(struct inode *dir, struct inode *inode,
+		mode_t mode)
+{
+	struct posix_acl *dfacl, *acl;
+	int error = 0;
+
+	dfacl = nfs3_proc_getacl(dir, ACL_TYPE_DEFAULT);
+	if (IS_ERR(dfacl)) {
+		error = PTR_ERR(dfacl);
+		return (error == -EOPNOTSUPP) ? 0 : error;
+	}
+	if (!dfacl)
+		return 0;
+	acl = posix_acl_clone(dfacl, GFP_KERNEL);
+	error = -ENOMEM;
+	if (!acl)
+		goto out_release_dfacl;
+	error = posix_acl_create_masq(acl, &mode);
+	if (error < 0)
+		goto out_release_acl;
+	error = nfs3_proc_setacls(inode, acl, S_ISDIR(inode->i_mode) ?
+						      dfacl : NULL);
+out_release_acl:
+	posix_acl_release(acl);
+out_release_dfacl:
+	posix_acl_release(dfacl);
+	return error;
+}
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 3878494d..7851569 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -17,6 +17,7 @@
 #include <linux/nfs_page.h>
 #include <linux/lockd/bind.h>
 #include <linux/smp_lock.h>
+#include <linux/nfs_mount.h>
 
 #define NFSDBG_FACILITY		NFSDBG_PROC
 
@@ -45,7 +46,7 @@ static inline int
 nfs3_rpc_call_wrapper(struct rpc_clnt *clnt, u32 proc, void *argp, void *resp, int flags)
 {
 	struct rpc_message msg = {
-		.rpc_proc	= &nfs3_procedures[proc],
+		.rpc_proc	= &clnt->cl_procinfo[proc],
 		.rpc_argp	= argp,
 		.rpc_resp	= resp,
 	};
@@ -313,7 +314,8 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 		.fh		= &fhandle,
 		.fattr		= &fattr
 	};
-	int			status;
+	mode_t mode = sattr->ia_mode;
+	int status;
 
 	dprintk("NFS call  create %s\n", dentry->d_name.name);
 	arg.createmode = NFS3_CREATE_UNCHECKED;
@@ -323,6 +325,8 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 		arg.verifier[1] = current->pid;
 	}
 
+	sattr->ia_mode &= ~current->fs->umask;
+
 again:
 	dir_attr.valid = 0;
 	fattr.valid = 0;
@@ -369,6 +373,9 @@ again:
 		nfs_refresh_inode(dentry->d_inode, &fattr);
 		dprintk("NFS reply setattr (post-create): %d\n", status);
 	}
+	if (status != 0)
+		goto out;
+	status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode);
 out:
 	dprintk("NFS reply create: %d\n", status);
 	return status;
@@ -538,15 +545,24 @@ nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
 		.fh		= &fhandle,
 		.fattr		= &fattr
 	};
-	int			status;
+	int mode = sattr->ia_mode;
+	int status;
 
 	dprintk("NFS call  mkdir %s\n", dentry->d_name.name);
 	dir_attr.valid = 0;
 	fattr.valid = 0;
+
+	sattr->ia_mode &= ~current->fs->umask;
+
 	status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKDIR, &arg, &res, 0);
 	nfs_refresh_inode(dir, &dir_attr);
-	if (status == 0)
-		status = nfs_instantiate(dentry, &fhandle, &fattr);
+	if (status != 0)
+		goto out;
+	status = nfs_instantiate(dentry, &fhandle, &fattr);
+	if (status != 0)
+		goto out;
+	status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode);
+out:
 	dprintk("NFS reply mkdir: %d\n", status);
 	return status;
 }
@@ -641,6 +657,7 @@ nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 		.fh		= &fh,
 		.fattr		= &fattr
 	};
+	mode_t mode = sattr->ia_mode;
 	int status;
 
 	switch (sattr->ia_mode & S_IFMT) {
@@ -653,12 +670,20 @@ nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 
 	dprintk("NFS call  mknod %s %u:%u\n", dentry->d_name.name,
 			MAJOR(rdev), MINOR(rdev));
+
+	sattr->ia_mode &= ~current->fs->umask;
+
 	dir_attr.valid = 0;
 	fattr.valid = 0;
 	status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKNOD, &arg, &res, 0);
 	nfs_refresh_inode(dir, &dir_attr);
-	if (status == 0)
-		status = nfs_instantiate(dentry, &fh, &fattr);
+	if (status != 0)
+		goto out;
+	status = nfs_instantiate(dentry, &fh, &fattr);
+	if (status != 0)
+		goto out;
+	status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode);
+out:
 	dprintk("NFS reply mknod: %d\n", status);
 	return status;
 }
@@ -825,7 +850,8 @@ nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
 struct nfs_rpc_ops	nfs_v3_clientops = {
 	.version	= 3,			/* protocol version */
 	.dentry_ops	= &nfs_dentry_operations,
-	.dir_inode_ops	= &nfs_dir_inode_operations,
+	.dir_inode_ops	= &nfs3_dir_inode_operations,
+	.file_inode_ops	= &nfs3_file_inode_operations,
 	.getroot	= nfs3_proc_get_root,
 	.getattr	= nfs3_proc_getattr,
 	.setattr	= nfs3_proc_setattr,
@@ -856,4 +882,5 @@ struct nfs_rpc_ops	nfs_v3_clientops = {
 	.file_open	= nfs_open,
 	.file_release	= nfs_release,
 	.lock		= nfs3_proc_lock,
+	.clear_acl_cache = nfs3_forget_cached_acls,
 };
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index a3593d4..db4a904 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -21,6 +21,7 @@
 #include <linux/nfs.h>
 #include <linux/nfs3.h>
 #include <linux/nfs_fs.h>
+#include <linux/nfsacl.h>
 
 #define NFSDBG_FACILITY		NFSDBG_XDR
 
@@ -79,6 +80,11 @@ extern int			nfs_stat_to_errno(int);
 #define NFS3_pathconfres_sz	(1+NFS3_post_op_attr_sz+6)
 #define NFS3_commitres_sz	(1+NFS3_wcc_data_sz+2)
 
+#define ACL3_getaclargs_sz	(NFS3_fh_sz+1)
+#define ACL3_setaclargs_sz	(NFS3_fh_sz+1+2*(2+5*3))
+#define ACL3_getaclres_sz	(1+NFS3_post_op_attr_sz+1+2*(2+5*3))
+#define ACL3_setaclres_sz	(1+NFS3_post_op_attr_sz)
+
 /*
  * Map file type to S_IFMT bits
  */
@@ -627,6 +633,74 @@ nfs3_xdr_commitargs(struct rpc_rqst *req, u32 *p, struct nfs_writeargs *args)
 	return 0;
 }
 
+#ifdef CONFIG_NFS_V3_ACL
+/*
+ * Encode GETACL arguments
+ */
+static int
+nfs3_xdr_getaclargs(struct rpc_rqst *req, u32 *p,
+		    struct nfs3_getaclargs *args)
+{
+	struct rpc_auth *auth = req->rq_task->tk_auth;
+	unsigned int replen;
+
+	p = xdr_encode_fhandle(p, args->fh);
+	*p++ = htonl(args->mask);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+
+	if (args->mask & (NFS_ACL | NFS_DFACL)) {
+		/* Inline the page array */
+		replen = (RPC_REPHDRSIZE + auth->au_rslack +
+			  ACL3_getaclres_sz) << 2;
+		xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 0,
+				 NFSACL_MAXPAGES << PAGE_SHIFT);
+	}
+	return 0;
+}
+
+/*
+ * Encode SETACL arguments
+ */
+static int
+nfs3_xdr_setaclargs(struct rpc_rqst *req, u32 *p,
+                   struct nfs3_setaclargs *args)
+{
+	struct xdr_buf *buf = &req->rq_snd_buf;
+	unsigned int base, len_in_head, len = nfsacl_size(
+		(args->mask & NFS_ACL)   ? args->acl_access  : NULL,
+		(args->mask & NFS_DFACL) ? args->acl_default : NULL);
+	int count, err;
+
+	p = xdr_encode_fhandle(p, NFS_FH(args->inode));
+	*p++ = htonl(args->mask);
+	base = (char *)p - (char *)buf->head->iov_base;
+	/* put as much of the acls into head as possible. */
+	len_in_head = min_t(unsigned int, buf->head->iov_len - base, len);
+	len -= len_in_head;
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p + (len_in_head >> 2));
+
+	for (count = 0; (count << PAGE_SHIFT) < len; count++) {
+		args->pages[count] = alloc_page(GFP_KERNEL);
+		if (!args->pages[count]) {
+			while (count)
+				__free_page(args->pages[--count]);
+			return -ENOMEM;
+		}
+	}
+	xdr_encode_pages(buf, args->pages, 0, len);
+
+	err = nfsacl_encode(buf, base, args->inode,
+			    (args->mask & NFS_ACL) ?
+			    args->acl_access : NULL, 1, 0);
+	if (err > 0)
+		err = nfsacl_encode(buf, base + err, args->inode,
+				    (args->mask & NFS_DFACL) ?
+				    args->acl_default : NULL, 1,
+				    NFS_ACL_DEFAULT);
+	return (err > 0) ? 0 : err;
+}
+#endif  /* CONFIG_NFS_V3_ACL */
+
 /*
  * NFS XDR decode functions
  */
@@ -978,6 +1052,54 @@ nfs3_xdr_commitres(struct rpc_rqst *req, u32 *p, struct nfs_writeres *res)
 	return 0;
 }
 
+#ifdef CONFIG_NFS_V3_ACL
+/*
+ * Decode GETACL reply
+ */
+static int
+nfs3_xdr_getaclres(struct rpc_rqst *req, u32 *p,
+		   struct nfs3_getaclres *res)
+{
+	struct xdr_buf *buf = &req->rq_rcv_buf;
+	int status = ntohl(*p++);
+	struct posix_acl **acl;
+	unsigned int *aclcnt;
+	int err, base;
+
+	if (status != 0)
+		return -nfs_stat_to_errno(status);
+	p = xdr_decode_post_op_attr(p, res->fattr);
+	res->mask = ntohl(*p++);
+	if (res->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
+		return -EINVAL;
+	base = (char *)p - (char *)req->rq_rcv_buf.head->iov_base;
+
+	acl = (res->mask & NFS_ACL) ? &res->acl_access : NULL;
+	aclcnt = (res->mask & NFS_ACLCNT) ? &res->acl_access_count : NULL;
+	err = nfsacl_decode(buf, base, aclcnt, acl);
+
+	acl = (res->mask & NFS_DFACL) ? &res->acl_default : NULL;
+	aclcnt = (res->mask & NFS_DFACLCNT) ? &res->acl_default_count : NULL;
+	if (err > 0)
+		err = nfsacl_decode(buf, base + err, aclcnt, acl);
+	return (err > 0) ? 0 : err;
+}
+
+/*
+ * Decode setacl reply.
+ */
+static int
+nfs3_xdr_setaclres(struct rpc_rqst *req, u32 *p, struct nfs_fattr *fattr)
+{
+	int status = ntohl(*p++);
+
+	if (status)
+		return -nfs_stat_to_errno(status);
+	xdr_decode_post_op_attr(p, fattr);
+	return 0;
+}
+#endif  /* CONFIG_NFS_V3_ACL */
+
 #ifndef MAX
 # define MAX(a, b)	(((a) > (b))? (a) : (b))
 #endif
@@ -1021,3 +1143,28 @@ struct rpc_version		nfs_version3 = {
 	.procs			= nfs3_procedures
 };
 
+#ifdef CONFIG_NFS_V3_ACL
+static struct rpc_procinfo	nfs3_acl_procedures[] = {
+	[ACLPROC3_GETACL] = {
+		.p_proc = ACLPROC3_GETACL,
+		.p_encode = (kxdrproc_t) nfs3_xdr_getaclargs,
+		.p_decode = (kxdrproc_t) nfs3_xdr_getaclres,
+		.p_bufsiz = MAX(ACL3_getaclargs_sz, ACL3_getaclres_sz) << 2,
+		.p_timer = 1,
+	},
+	[ACLPROC3_SETACL] = {
+		.p_proc = ACLPROC3_SETACL,
+		.p_encode = (kxdrproc_t) nfs3_xdr_setaclargs,
+		.p_decode = (kxdrproc_t) nfs3_xdr_setaclres,
+		.p_bufsiz = MAX(ACL3_setaclargs_sz, ACL3_setaclres_sz) << 2,
+		.p_timer = 0,
+	},
+};
+
+struct rpc_version		nfsacl_version3 = {
+	.number			= 3,
+	.nrprocs		= sizeof(nfs3_acl_procedures)/
+				  sizeof(nfs3_acl_procedures[0]),
+	.procs			= nfs3_acl_procedures,
+};
+#endif  /* CONFIG_NFS_V3_ACL */
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
new file mode 100644
index 0000000..ec1a22d
--- /dev/null
+++ b/fs/nfs/nfs4_fs.h
@@ -0,0 +1,253 @@
+/*
+ * linux/fs/nfs/nfs4_fs.h
+ *
+ * Copyright (C) 2005 Trond Myklebust
+ *
+ * NFSv4-specific filesystem definitions and declarations
+ */
+
+#ifndef __LINUX_FS_NFS_NFS4_FS_H
+#define __LINUX_FS_NFS_NFS4_FS_H
+
+#ifdef CONFIG_NFS_V4
+
+struct idmap;
+
+/*
+ * In a seqid-mutating op, this macro controls which error return
+ * values trigger incrementation of the seqid.
+ *
+ * from rfc 3010:
+ * The client MUST monotonically increment the sequence number for the
+ * CLOSE, LOCK, LOCKU, OPEN, OPEN_CONFIRM, and OPEN_DOWNGRADE
+ * operations.  This is true even in the event that the previous
+ * operation that used the sequence number received an error.  The only
+ * exception to this rule is if the previous operation received one of
+ * the following errors: NFSERR_STALE_CLIENTID, NFSERR_STALE_STATEID,
+ * NFSERR_BAD_STATEID, NFSERR_BAD_SEQID, NFSERR_BADXDR,
+ * NFSERR_RESOURCE, NFSERR_NOFILEHANDLE.
+ *
+ */
+#define seqid_mutating_err(err)       \
+(((err) != NFSERR_STALE_CLIENTID) &&  \
+ ((err) != NFSERR_STALE_STATEID)  &&  \
+ ((err) != NFSERR_BAD_STATEID)    &&  \
+ ((err) != NFSERR_BAD_SEQID)      &&  \
+ ((err) != NFSERR_BAD_XDR)        &&  \
+ ((err) != NFSERR_RESOURCE)       &&  \
+ ((err) != NFSERR_NOFILEHANDLE))
+
+enum nfs4_client_state {
+	NFS4CLNT_OK  = 0,
+};
+
+/*
+ * The nfs4_client identifies our client state to the server.
+ */
+struct nfs4_client {
+	struct list_head	cl_servers;	/* Global list of servers */
+	struct in_addr		cl_addr;	/* Server identifier */
+	u64			cl_clientid;	/* constant */
+	nfs4_verifier		cl_confirm;
+	unsigned long		cl_state;
+
+	u32			cl_lockowner_id;
+
+	/*
+	 * The following rwsem ensures exclusive access to the server
+	 * while we recover the state following a lease expiration.
+	 */
+	struct rw_semaphore	cl_sem;
+
+	struct list_head	cl_delegations;
+	struct list_head	cl_state_owners;
+	struct list_head	cl_unused;
+	int			cl_nunused;
+	spinlock_t		cl_lock;
+	atomic_t		cl_count;
+
+	struct rpc_clnt *	cl_rpcclient;
+	struct rpc_cred *	cl_cred;
+
+	struct list_head	cl_superblocks;	/* List of nfs_server structs */
+
+	unsigned long		cl_lease_time;
+	unsigned long		cl_last_renewal;
+	struct work_struct	cl_renewd;
+	struct work_struct	cl_recoverd;
+
+	wait_queue_head_t	cl_waitq;
+	struct rpc_wait_queue	cl_rpcwaitq;
+
+	/* used for the setclientid verifier */
+	struct timespec		cl_boot_time;
+
+	/* idmapper */
+	struct idmap *		cl_idmap;
+
+	/* Our own IP address, as a null-terminated string.
+	 * This is used to generate the clientid, and the callback address.
+	 */
+	char			cl_ipaddr[16];
+	unsigned char		cl_id_uniquifier;
+};
+
+/*
+ * NFS4 state_owners and lock_owners are simply labels for ordered
+ * sequences of RPC calls. Their sole purpose is to provide once-only
+ * semantics by allowing the server to identify replayed requests.
+ *
+ * The ->so_sema is held during all state_owner seqid-mutating operations:
+ * OPEN, OPEN_DOWNGRADE, and CLOSE. Its purpose is to properly serialize
+ * so_seqid.
+ */
+struct nfs4_state_owner {
+	struct list_head     so_list;	 /* per-clientid list of state_owners */
+	struct nfs4_client   *so_client;
+	u32                  so_id;      /* 32-bit identifier, unique */
+	struct semaphore     so_sema;
+	u32                  so_seqid;   /* protected by so_sema */
+	atomic_t	     so_count;
+
+	struct rpc_cred	     *so_cred;	 /* Associated cred */
+	struct list_head     so_states;
+	struct list_head     so_delegations;
+};
+
+/*
+ * struct nfs4_state maintains the client-side state for a given
+ * (state_owner,inode) tuple (OPEN) or state_owner (LOCK).
+ *
+ * OPEN:
+ * In order to know when to OPEN_DOWNGRADE or CLOSE the state on the server,
+ * we need to know how many files are open for reading or writing on a
+ * given inode. This information too is stored here.
+ *
+ * LOCK: one nfs4_state (LOCK) to hold the lock stateid nfs4_state(OPEN)
+ */
+
+struct nfs4_lock_state {
+	struct list_head	ls_locks;	/* Other lock stateids */
+	struct nfs4_state *	ls_state;	/* Pointer to open state */
+	fl_owner_t		ls_owner;	/* POSIX lock owner */
+#define NFS_LOCK_INITIALIZED 1
+	int			ls_flags;
+	u32			ls_seqid;
+	u32			ls_id;
+	nfs4_stateid		ls_stateid;
+	atomic_t		ls_count;
+};
+
+/* bits for nfs4_state->flags */
+enum {
+	LK_STATE_IN_USE,
+	NFS_DELEGATED_STATE,
+};
+
+struct nfs4_state {
+	struct list_head open_states;	/* List of states for the same state_owner */
+	struct list_head inode_states;	/* List of states for the same inode */
+	struct list_head lock_states;	/* List of subservient lock stateids */
+
+	struct nfs4_state_owner *owner;	/* Pointer to the open owner */
+	struct inode *inode;		/* Pointer to the inode */
+
+	unsigned long flags;		/* Do we hold any locks? */
+	struct semaphore lock_sema;	/* Serializes file locking operations */
+	spinlock_t state_lock;		/* Protects the lock_states list */
+
+	nfs4_stateid stateid;
+
+	unsigned int nreaders;
+	unsigned int nwriters;
+	int state;			/* State on the server (R,W, or RW) */
+	atomic_t count;
+};
+
+
+struct nfs4_exception {
+	long timeout;
+	int retry;
+};
+
+struct nfs4_state_recovery_ops {
+	int (*recover_open)(struct nfs4_state_owner *, struct nfs4_state *);
+	int (*recover_lock)(struct nfs4_state *, struct file_lock *);
+};
+
+extern struct dentry_operations nfs4_dentry_operations;
+extern struct inode_operations nfs4_dir_inode_operations;
+
+/* inode.c */
+extern ssize_t nfs4_getxattr(struct dentry *, const char *, void *, size_t);
+extern int nfs4_setxattr(struct dentry *, const char *, const void *, size_t, int);
+extern ssize_t nfs4_listxattr(struct dentry *, char *, size_t);
+
+
+/* nfs4proc.c */
+extern int nfs4_map_errors(int err);
+extern int nfs4_proc_setclientid(struct nfs4_client *, u32, unsigned short);
+extern int nfs4_proc_setclientid_confirm(struct nfs4_client *);
+extern int nfs4_proc_async_renew(struct nfs4_client *);
+extern int nfs4_proc_renew(struct nfs4_client *);
+extern int nfs4_do_close(struct inode *inode, struct nfs4_state *state, mode_t mode);
+extern struct inode *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
+extern int nfs4_open_revalidate(struct inode *, struct dentry *, int);
+
+extern struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops;
+extern struct nfs4_state_recovery_ops nfs4_network_partition_recovery_ops;
+
+extern const u32 nfs4_fattr_bitmap[2];
+extern const u32 nfs4_statfs_bitmap[2];
+extern const u32 nfs4_pathconf_bitmap[2];
+extern const u32 nfs4_fsinfo_bitmap[2];
+
+/* nfs4renewd.c */
+extern void nfs4_schedule_state_renewal(struct nfs4_client *);
+extern void nfs4_renewd_prepare_shutdown(struct nfs_server *);
+extern void nfs4_kill_renewd(struct nfs4_client *);
+extern void nfs4_renew_state(void *);
+
+/* nfs4state.c */
+extern void init_nfsv4_state(struct nfs_server *);
+extern void destroy_nfsv4_state(struct nfs_server *);
+extern struct nfs4_client *nfs4_get_client(struct in_addr *);
+extern void nfs4_put_client(struct nfs4_client *clp);
+extern int nfs4_init_client(struct nfs4_client *clp);
+extern struct nfs4_client *nfs4_find_client(struct in_addr *);
+extern u32 nfs4_alloc_lockowner_id(struct nfs4_client *);
+
+extern struct nfs4_state_owner * nfs4_get_state_owner(struct nfs_server *, struct rpc_cred *);
+extern void nfs4_put_state_owner(struct nfs4_state_owner *);
+extern void nfs4_drop_state_owner(struct nfs4_state_owner *);
+extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *);
+extern void nfs4_put_open_state(struct nfs4_state *);
+extern void nfs4_close_state(struct nfs4_state *, mode_t);
+extern struct nfs4_state *nfs4_find_state(struct inode *, struct rpc_cred *, mode_t mode);
+extern void nfs4_increment_seqid(int status, struct nfs4_state_owner *sp);
+extern void nfs4_schedule_state_recovery(struct nfs4_client *);
+extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
+extern void nfs4_increment_lock_seqid(int status, struct nfs4_lock_state *ls);
+extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t);
+
+extern const nfs4_stateid zero_stateid;
+
+/* nfs4xdr.c */
+extern uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus);
+extern struct rpc_procinfo nfs4_procedures[];
+
+struct nfs4_mount_data;
+
+/* callback_xdr.c */
+extern struct svc_version nfs4_callback_version1;
+
+#else
+
+#define init_nfsv4_state(server)  do { } while (0)
+#define destroy_nfsv4_state(server)       do { } while (0)
+#define nfs4_put_state_owner(inode, owner) do { } while (0)
+#define nfs4_put_open_state(state) do { } while (0)
+#define nfs4_close_state(a, b) do { } while (0)
+
+#endif /* CONFIG_NFS_V4 */
+#endif /* __LINUX_FS_NFS_NFS4_FS.H */
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 1d5cb3e..1b76f80 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -48,6 +48,7 @@
 #include <linux/smp_lock.h>
 #include <linux/namei.h>
 
+#include "nfs4_fs.h"
 #include "delegation.h"
 
 #define NFSDBG_FACILITY		NFSDBG_PROC
@@ -62,8 +63,6 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
 extern u32 *nfs4_decode_dirent(u32 *p, struct nfs_entry *entry, int plus);
 extern struct rpc_procinfo nfs4_procedures[];
 
-extern nfs4_stateid zero_stateid;
-
 /* Prevent leaks of NFSv4 errors into userland */
 int nfs4_map_errors(int err)
 {
@@ -104,7 +103,7 @@ const u32 nfs4_statfs_bitmap[2] = {
 	| FATTR4_WORD1_SPACE_TOTAL
 };
 
-u32 nfs4_pathconf_bitmap[2] = {
+const u32 nfs4_pathconf_bitmap[2] = {
 	FATTR4_WORD0_MAXLINK
 	| FATTR4_WORD0_MAXNAME,
 	0
@@ -124,7 +123,7 @@ static void nfs4_setup_readdir(u64 cookie, u32 *verifier, struct dentry *dentry,
 
 	BUG_ON(readdir->count < 80);
 	if (cookie > 2) {
-		readdir->cookie = (cookie > 2) ? cookie : 0;
+		readdir->cookie = cookie;
 		memcpy(&readdir->verifier, verifier, sizeof(readdir->verifier));
 		return;
 	}
@@ -270,14 +269,9 @@ static int nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *sta
 	int err;
 	do {
 		err = _nfs4_open_reclaim(sp, state);
-		switch (err) {
-			case 0:
-			case -NFS4ERR_STALE_CLIENTID:
-			case -NFS4ERR_STALE_STATEID:
-			case -NFS4ERR_EXPIRED:
-				return err;
-		}
-		err = nfs4_handle_exception(server, err, &exception);
+		if (err != -NFS4ERR_DELAY)
+			break;
+		nfs4_handle_exception(server, err, &exception);
 	} while (exception.retry);
 	return err;
 }
@@ -509,6 +503,20 @@ out_stale:
 	goto out_nodeleg;
 }
 
+static inline int nfs4_do_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *state, struct dentry *dentry)
+{
+	struct nfs_server *server = NFS_SERVER(dentry->d_inode);
+	struct nfs4_exception exception = { };
+	int err;
+
+	do {
+		err = _nfs4_open_expired(sp, state, dentry);
+		if (err == -NFS4ERR_DELAY)
+			nfs4_handle_exception(server, err, &exception);
+	} while (exception.retry);
+	return err;
+}
+
 static int nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *state)
 {
 	struct nfs_inode *nfsi = NFS_I(state->inode);
@@ -521,7 +529,7 @@ static int nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *sta
 			continue;
 		get_nfs_open_context(ctx);
 		spin_unlock(&state->inode->i_lock);
-		status = _nfs4_open_expired(sp, state, ctx->dentry);
+		status = nfs4_do_open_expired(sp, state, ctx->dentry);
 		put_nfs_open_context(ctx);
 		return status;
 	}
@@ -748,11 +756,10 @@ static int _nfs4_do_setattr(struct nfs_server *server, struct nfs_fattr *fattr,
 
         fattr->valid = 0;
 
-	if (state != NULL)
+	if (state != NULL) {
 		msg.rpc_cred = state->owner->so_cred;
-	if (sattr->ia_valid & ATTR_SIZE)
-		nfs4_copy_stateid(&arg.stateid, state, NULL);
-	else
+		nfs4_copy_stateid(&arg.stateid, state, current->files);
+	} else
 		memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid));
 
 	return rpc_call_sync(server->client, &msg, 0);
@@ -1116,47 +1123,31 @@ static int
 nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 		  struct iattr *sattr)
 {
-	struct inode *		inode = dentry->d_inode;
-	int			size_change = sattr->ia_valid & ATTR_SIZE;
-	struct nfs4_state	*state = NULL;
-	int need_iput = 0;
+	struct rpc_cred *cred;
+	struct inode *inode = dentry->d_inode;
+	struct nfs4_state *state;
 	int status;
 
 	fattr->valid = 0;
 	
-	if (size_change) {
-		struct rpc_cred *cred = rpcauth_lookupcred(NFS_SERVER(inode)->client->cl_auth, 0);
-		if (IS_ERR(cred))
-			return PTR_ERR(cred);
+	cred = rpcauth_lookupcred(NFS_SERVER(inode)->client->cl_auth, 0);
+	if (IS_ERR(cred))
+		return PTR_ERR(cred);
+	/* Search for an existing WRITE delegation first */
+	state = nfs4_open_delegated(inode, FMODE_WRITE, cred);
+	if (!IS_ERR(state)) {
+		/* NB: nfs4_open_delegated() bumps the inode->i_count */
+		iput(inode);
+	} else {
+		/* Search for an existing open(O_WRITE) stateid */
 		state = nfs4_find_state(inode, cred, FMODE_WRITE);
-		if (state == NULL) {
-			state = nfs4_open_delegated(dentry->d_inode,
-					FMODE_WRITE, cred);
-			if (IS_ERR(state))
-				state = nfs4_do_open(dentry->d_parent->d_inode,
-						dentry, FMODE_WRITE,
-						NULL, cred);
-			need_iput = 1;
-		}
-		put_rpccred(cred);
-		if (IS_ERR(state))
-			return PTR_ERR(state);
-
-		if (state->inode != inode) {
-			printk(KERN_WARNING "nfs: raced in setattr (%p != %p), returning -EIO\n", inode, state->inode);
-			status = -EIO;
-			goto out;
-		}
 	}
+
 	status = nfs4_do_setattr(NFS_SERVER(inode), fattr,
 			NFS_FH(inode), sattr, state);
-out:
-	if (state) {
-		inode = state->inode;
+	if (state != NULL)
 		nfs4_close_state(state, FMODE_WRITE);
-		if (need_iput)
-			iput(inode);
-	}
+	put_rpccred(cred);
 	return status;
 }
 
@@ -1731,6 +1722,10 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
 	};
 	int			status;
 
+	dprintk("%s: dentry = %s/%s, cookie = %Lu\n", __FUNCTION__,
+			dentry->d_parent->d_name.name,
+			dentry->d_name.name,
+			(unsigned long long)cookie);
 	lock_kernel();
 	nfs4_setup_readdir(cookie, NFS_COOKIEVERF(dir), dentry, &args);
 	res.pgbase = args.pgbase;
@@ -1738,6 +1733,7 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
 	if (status == 0)
 		memcpy(NFS_COOKIEVERF(dir), res.verifier.data, NFS4_VERIFIER_SIZE);
 	unlock_kernel();
+	dprintk("%s: returns %d\n", __FUNCTION__, status);
 	return status;
 }
 
@@ -2163,6 +2159,193 @@ nfs4_proc_file_release(struct inode *inode, struct file *filp)
 	return 0;
 }
 
+static inline int nfs4_server_supports_acls(struct nfs_server *server)
+{
+	return (server->caps & NFS_CAP_ACLS)
+		&& (server->acl_bitmask & ACL4_SUPPORT_ALLOW_ACL)
+		&& (server->acl_bitmask & ACL4_SUPPORT_DENY_ACL);
+}
+
+/* Assuming that XATTR_SIZE_MAX is a multiple of PAGE_CACHE_SIZE, and that
+ * it's OK to put sizeof(void) * (XATTR_SIZE_MAX/PAGE_CACHE_SIZE) bytes on
+ * the stack.
+ */
+#define NFS4ACL_MAXPAGES (XATTR_SIZE_MAX >> PAGE_CACHE_SHIFT)
+
+static void buf_to_pages(const void *buf, size_t buflen,
+		struct page **pages, unsigned int *pgbase)
+{
+	const void *p = buf;
+
+	*pgbase = offset_in_page(buf);
+	p -= *pgbase;
+	while (p < buf + buflen) {
+		*(pages++) = virt_to_page(p);
+		p += PAGE_CACHE_SIZE;
+	}
+}
+
+struct nfs4_cached_acl {
+	int cached;
+	size_t len;
+	char data[0];
+};
+
+static void nfs4_set_cached_acl(struct inode *inode, struct nfs4_cached_acl *acl)
+{
+	struct nfs_inode *nfsi = NFS_I(inode);
+
+	spin_lock(&inode->i_lock);
+	kfree(nfsi->nfs4_acl);
+	nfsi->nfs4_acl = acl;
+	spin_unlock(&inode->i_lock);
+}
+
+static void nfs4_zap_acl_attr(struct inode *inode)
+{
+	nfs4_set_cached_acl(inode, NULL);
+}
+
+static inline ssize_t nfs4_read_cached_acl(struct inode *inode, char *buf, size_t buflen)
+{
+	struct nfs_inode *nfsi = NFS_I(inode);
+	struct nfs4_cached_acl *acl;
+	int ret = -ENOENT;
+
+	spin_lock(&inode->i_lock);
+	acl = nfsi->nfs4_acl;
+	if (acl == NULL)
+		goto out;
+	if (buf == NULL) /* user is just asking for length */
+		goto out_len;
+	if (acl->cached == 0)
+		goto out;
+	ret = -ERANGE; /* see getxattr(2) man page */
+	if (acl->len > buflen)
+		goto out;
+	memcpy(buf, acl->data, acl->len);
+out_len:
+	ret = acl->len;
+out:
+	spin_unlock(&inode->i_lock);
+	return ret;
+}
+
+static void nfs4_write_cached_acl(struct inode *inode, const char *buf, size_t acl_len)
+{
+	struct nfs4_cached_acl *acl;
+
+	if (buf && acl_len <= PAGE_SIZE) {
+		acl = kmalloc(sizeof(*acl) + acl_len, GFP_KERNEL);
+		if (acl == NULL)
+			goto out;
+		acl->cached = 1;
+		memcpy(acl->data, buf, acl_len);
+	} else {
+		acl = kmalloc(sizeof(*acl), GFP_KERNEL);
+		if (acl == NULL)
+			goto out;
+		acl->cached = 0;
+	}
+	acl->len = acl_len;
+out:
+	nfs4_set_cached_acl(inode, acl);
+}
+
+static inline ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen)
+{
+	struct page *pages[NFS4ACL_MAXPAGES];
+	struct nfs_getaclargs args = {
+		.fh = NFS_FH(inode),
+		.acl_pages = pages,
+		.acl_len = buflen,
+	};
+	size_t resp_len = buflen;
+	void *resp_buf;
+	struct rpc_message msg = {
+		.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_GETACL],
+		.rpc_argp = &args,
+		.rpc_resp = &resp_len,
+	};
+	struct page *localpage = NULL;
+	int ret;
+
+	if (buflen < PAGE_SIZE) {
+		/* As long as we're doing a round trip to the server anyway,
+		 * let's be prepared for a page of acl data. */
+		localpage = alloc_page(GFP_KERNEL);
+		resp_buf = page_address(localpage);
+		if (localpage == NULL)
+			return -ENOMEM;
+		args.acl_pages[0] = localpage;
+		args.acl_pgbase = 0;
+		args.acl_len = PAGE_SIZE;
+	} else {
+		resp_buf = buf;
+		buf_to_pages(buf, buflen, args.acl_pages, &args.acl_pgbase);
+	}
+	ret = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
+	if (ret)
+		goto out_free;
+	if (resp_len > args.acl_len)
+		nfs4_write_cached_acl(inode, NULL, resp_len);
+	else
+		nfs4_write_cached_acl(inode, resp_buf, resp_len);
+	if (buf) {
+		ret = -ERANGE;
+		if (resp_len > buflen)
+			goto out_free;
+		if (localpage)
+			memcpy(buf, resp_buf, resp_len);
+	}
+	ret = resp_len;
+out_free:
+	if (localpage)
+		__free_page(localpage);
+	return ret;
+}
+
+static ssize_t nfs4_proc_get_acl(struct inode *inode, void *buf, size_t buflen)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	int ret;
+
+	if (!nfs4_server_supports_acls(server))
+		return -EOPNOTSUPP;
+	ret = nfs_revalidate_inode(server, inode);
+	if (ret < 0)
+		return ret;
+	ret = nfs4_read_cached_acl(inode, buf, buflen);
+	if (ret != -ENOENT)
+		return ret;
+	return nfs4_get_acl_uncached(inode, buf, buflen);
+}
+
+static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	struct page *pages[NFS4ACL_MAXPAGES];
+	struct nfs_setaclargs arg = {
+		.fh		= NFS_FH(inode),
+		.acl_pages	= pages,
+		.acl_len	= buflen,
+	};
+	struct rpc_message msg = {
+		.rpc_proc	= &nfs4_procedures[NFSPROC4_CLNT_SETACL],
+		.rpc_argp	= &arg,
+		.rpc_resp	= NULL,
+	};
+	int ret;
+
+	if (!nfs4_server_supports_acls(server))
+		return -EOPNOTSUPP;
+	buf_to_pages(buf, buflen, arg.acl_pages, &arg.acl_pgbase);
+	ret = rpc_call_sync(NFS_SERVER(inode)->client, &msg, 0);
+	if (ret == 0)
+		nfs4_write_cached_acl(inode, buf, buflen);
+	return ret;
+}
+
 static int
 nfs4_async_handle_error(struct rpc_task *task, struct nfs_server *server)
 {
@@ -2448,14 +2631,11 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
 	down_read(&clp->cl_sem);
 	nlo.clientid = clp->cl_clientid;
 	down(&state->lock_sema);
-	lsp = nfs4_find_lock_state(state, request->fl_owner);
-	if (lsp)
-		nlo.id = lsp->ls_id; 
-	else {
-		spin_lock(&clp->cl_lock);
-		nlo.id = nfs4_alloc_lockowner_id(clp);
-		spin_unlock(&clp->cl_lock);
-	}
+	status = nfs4_set_lock_state(state, request);
+	if (status != 0)
+		goto out;
+	lsp = request->fl_u.nfs4_fl.owner;
+	nlo.id = lsp->ls_id; 
 	arg.u.lockt = &nlo;
 	status = rpc_call_sync(server->client, &msg, 0);
 	if (!status) {
@@ -2476,8 +2656,7 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
 		request->fl_pid = 0;
 		status = 0;
 	}
-	if (lsp)
-		nfs4_put_lock_state(lsp);
+out:
 	up(&state->lock_sema);
 	up_read(&clp->cl_sem);
 	return status;
@@ -2537,28 +2716,26 @@ static int _nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock
 	};
 	struct nfs4_lock_state *lsp;
 	struct nfs_locku_opargs luargs;
-	int status = 0;
+	int status;
 			
 	down_read(&clp->cl_sem);
 	down(&state->lock_sema);
-	lsp = nfs4_find_lock_state(state, request->fl_owner);
-	if (!lsp)
+	status = nfs4_set_lock_state(state, request);
+	if (status != 0)
 		goto out;
+	lsp = request->fl_u.nfs4_fl.owner;
 	/* We might have lost the locks! */
-	if ((lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0) {
-		luargs.seqid = lsp->ls_seqid;
-		memcpy(&luargs.stateid, &lsp->ls_stateid, sizeof(luargs.stateid));
-		arg.u.locku = &luargs;
-		status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
-		nfs4_increment_lock_seqid(status, lsp);
-	}
+	if ((lsp->ls_flags & NFS_LOCK_INITIALIZED) == 0)
+		goto out;
+	luargs.seqid = lsp->ls_seqid;
+	memcpy(&luargs.stateid, &lsp->ls_stateid, sizeof(luargs.stateid));
+	arg.u.locku = &luargs;
+	status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
+	nfs4_increment_lock_seqid(status, lsp);
 
-	if (status == 0) {
+	if (status == 0)
 		memcpy(&lsp->ls_stateid,  &res.u.stateid, 
 				sizeof(lsp->ls_stateid));
-		nfs4_notify_unlck(state, request, lsp);
-	}
-	nfs4_put_lock_state(lsp);
 out:
 	up(&state->lock_sema);
 	if (status == 0)
@@ -2584,7 +2761,7 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *r
 {
 	struct inode *inode = state->inode;
 	struct nfs_server *server = NFS_SERVER(inode);
-	struct nfs4_lock_state *lsp;
+	struct nfs4_lock_state *lsp = request->fl_u.nfs4_fl.owner;
 	struct nfs_lockargs arg = {
 		.fh = NFS_FH(inode),
 		.type = nfs4_lck_type(cmd, request),
@@ -2606,9 +2783,6 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *r
 	};
 	int status;
 
-	lsp = nfs4_get_lock_state(state, request->fl_owner);
-	if (lsp == NULL)
-		return -ENOMEM;
 	if (!(lsp->ls_flags & NFS_LOCK_INITIALIZED)) {
 		struct nfs4_state_owner *owner = state->owner;
 		struct nfs_open_to_lock otl = {
@@ -2630,38 +2804,57 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *r
 		* seqid mutating errors */
 		nfs4_increment_seqid(status, owner);
 		up(&owner->so_sema);
+		if (status == 0) {
+			lsp->ls_flags |= NFS_LOCK_INITIALIZED;
+			lsp->ls_seqid++;
+		}
 	} else {
 		struct nfs_exist_lock el = {
 			.seqid = lsp->ls_seqid,
 		};
 		memcpy(&el.stateid, &lsp->ls_stateid, sizeof(el.stateid));
 		largs.u.exist_lock = &el;
-		largs.new_lock_owner = 0;
 		arg.u.lock = &largs;
 		status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
+		/* increment seqid on success, and * seqid mutating errors*/
+		nfs4_increment_lock_seqid(status, lsp);
 	}
-	/* increment seqid on success, and * seqid mutating errors*/
-	nfs4_increment_lock_seqid(status, lsp);
 	/* save the returned stateid. */
-	if (status == 0) {
+	if (status == 0)
 		memcpy(&lsp->ls_stateid, &res.u.stateid, sizeof(nfs4_stateid));
-		lsp->ls_flags |= NFS_LOCK_INITIALIZED;
-		if (!reclaim)
-			nfs4_notify_setlk(state, request, lsp);
-	} else if (status == -NFS4ERR_DENIED)
+	else if (status == -NFS4ERR_DENIED)
 		status = -EAGAIN;
-	nfs4_put_lock_state(lsp);
 	return status;
 }
 
 static int nfs4_lock_reclaim(struct nfs4_state *state, struct file_lock *request)
 {
-	return _nfs4_do_setlk(state, F_SETLK, request, 1);
+	struct nfs_server *server = NFS_SERVER(state->inode);
+	struct nfs4_exception exception = { };
+	int err;
+
+	do {
+		err = _nfs4_do_setlk(state, F_SETLK, request, 1);
+		if (err != -NFS4ERR_DELAY)
+			break;
+		nfs4_handle_exception(server, err, &exception);
+	} while (exception.retry);
+	return err;
 }
 
 static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request)
 {
-	return _nfs4_do_setlk(state, F_SETLK, request, 0);
+	struct nfs_server *server = NFS_SERVER(state->inode);
+	struct nfs4_exception exception = { };
+	int err;
+
+	do {
+		err = _nfs4_do_setlk(state, F_SETLK, request, 0);
+		if (err != -NFS4ERR_DELAY)
+			break;
+		nfs4_handle_exception(server, err, &exception);
+	} while (exception.retry);
+	return err;
 }
 
 static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock *request)
@@ -2671,7 +2864,9 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock
 
 	down_read(&clp->cl_sem);
 	down(&state->lock_sema);
-	status = _nfs4_do_setlk(state, cmd, request, 0);
+	status = nfs4_set_lock_state(state, request);
+	if (status == 0)
+		status = _nfs4_do_setlk(state, cmd, request, 0);
 	up(&state->lock_sema);
 	if (status == 0) {
 		/* Note: we always want to sleep here! */
@@ -2729,10 +2924,53 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
 		if (signalled())
 			break;
 	} while(status < 0);
-
 	return status;
 }
 
+
+#define XATTR_NAME_NFSV4_ACL "system.nfs4_acl"
+
+int nfs4_setxattr(struct dentry *dentry, const char *key, const void *buf,
+		size_t buflen, int flags)
+{
+	struct inode *inode = dentry->d_inode;
+
+	if (strcmp(key, XATTR_NAME_NFSV4_ACL) != 0)
+		return -EOPNOTSUPP;
+
+	if (!S_ISREG(inode->i_mode) &&
+	    (!S_ISDIR(inode->i_mode) || inode->i_mode & S_ISVTX))
+		return -EPERM;
+
+	return nfs4_proc_set_acl(inode, buf, buflen);
+}
+
+/* The getxattr man page suggests returning -ENODATA for unknown attributes,
+ * and that's what we'll do for e.g. user attributes that haven't been set.
+ * But we'll follow ext2/ext3's lead by returning -EOPNOTSUPP for unsupported
+ * attributes in kernel-managed attribute namespaces. */
+ssize_t nfs4_getxattr(struct dentry *dentry, const char *key, void *buf,
+		size_t buflen)
+{
+	struct inode *inode = dentry->d_inode;
+
+	if (strcmp(key, XATTR_NAME_NFSV4_ACL) != 0)
+		return -EOPNOTSUPP;
+
+	return nfs4_proc_get_acl(inode, buf, buflen);
+}
+
+ssize_t nfs4_listxattr(struct dentry *dentry, char *buf, size_t buflen)
+{
+	size_t len = strlen(XATTR_NAME_NFSV4_ACL) + 1;
+
+	if (buf && buflen < len)
+		return -ERANGE;
+	if (buf)
+		memcpy(buf, XATTR_NAME_NFSV4_ACL, len);
+	return len;
+}
+
 struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops = {
 	.recover_open	= nfs4_open_reclaim,
 	.recover_lock	= nfs4_lock_reclaim,
@@ -2743,10 +2981,20 @@ struct nfs4_state_recovery_ops nfs4_network_partition_recovery_ops = {
 	.recover_lock	= nfs4_lock_expired,
 };
 
+static struct inode_operations nfs4_file_inode_operations = {
+	.permission	= nfs_permission,
+	.getattr	= nfs_getattr,
+	.setattr	= nfs_setattr,
+	.getxattr	= nfs4_getxattr,
+	.setxattr	= nfs4_setxattr,
+	.listxattr	= nfs4_listxattr,
+};
+
 struct nfs_rpc_ops	nfs_v4_clientops = {
 	.version	= 4,			/* protocol version */
 	.dentry_ops	= &nfs4_dentry_operations,
 	.dir_inode_ops	= &nfs4_dir_inode_operations,
+	.file_inode_ops	= &nfs4_file_inode_operations,
 	.getroot	= nfs4_proc_get_root,
 	.getattr	= nfs4_proc_getattr,
 	.setattr	= nfs4_proc_setattr,
@@ -2777,6 +3025,7 @@ struct nfs_rpc_ops	nfs_v4_clientops = {
 	.file_open      = nfs4_proc_file_open,
 	.file_release   = nfs4_proc_file_release,
 	.lock		= nfs4_proc_lock,
+	.clear_acl_cache = nfs4_zap_acl_attr,
 };
 
 /*
diff --git a/fs/nfs/nfs4renewd.c b/fs/nfs/nfs4renewd.c
index 667e06f..a300162 100644
--- a/fs/nfs/nfs4renewd.c
+++ b/fs/nfs/nfs4renewd.c
@@ -53,6 +53,7 @@
 #include <linux/nfs.h>
 #include <linux/nfs4.h>
 #include <linux/nfs_fs.h>
+#include "nfs4_fs.h"
 
 #define NFSDBG_FACILITY	NFSDBG_PROC
 
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 231cebc..afe587d 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -46,24 +46,18 @@
 #include <linux/workqueue.h>
 #include <linux/bitops.h>
 
+#include "nfs4_fs.h"
 #include "callback.h"
 #include "delegation.h"
 
 #define OPENOWNER_POOL_SIZE	8
 
-static DEFINE_SPINLOCK(state_spinlock);
-
-nfs4_stateid zero_stateid;
-
-#if 0
-nfs4_stateid one_stateid =
-	{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
-#endif
+const nfs4_stateid zero_stateid;
 
+static DEFINE_SPINLOCK(state_spinlock);
 static LIST_HEAD(nfs4_clientid_list);
 
 static void nfs4_recover_state(void *);
-extern void nfs4_renew_state(void *);
 
 void
 init_nfsv4_state(struct nfs_server *server)
@@ -116,6 +110,7 @@ nfs4_alloc_client(struct in_addr *addr)
 	INIT_LIST_HEAD(&clp->cl_superblocks);
 	init_waitqueue_head(&clp->cl_waitq);
 	rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS4 client");
+	clp->cl_rpcclient = ERR_PTR(-EINVAL);
 	clp->cl_boot_time = CURRENT_TIME;
 	clp->cl_state = 1 << NFS4CLNT_OK;
 	return clp;
@@ -137,7 +132,7 @@ nfs4_free_client(struct nfs4_client *clp)
 	if (clp->cl_cred)
 		put_rpccred(clp->cl_cred);
 	nfs_idmap_delete(clp);
-	if (clp->cl_rpcclient)
+	if (!IS_ERR(clp->cl_rpcclient))
 		rpc_shutdown_client(clp->cl_rpcclient);
 	kfree(clp);
 	nfs_callback_down();
@@ -365,7 +360,7 @@ nfs4_alloc_open_state(void)
 	atomic_set(&state->count, 1);
 	INIT_LIST_HEAD(&state->lock_states);
 	init_MUTEX(&state->lock_sema);
-	rwlock_init(&state->state_lock);
+	spin_lock_init(&state->state_lock);
 	return state;
 }
 
@@ -547,16 +542,6 @@ __nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
 	return NULL;
 }
 
-struct nfs4_lock_state *
-nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
-{
-	struct nfs4_lock_state *lsp;
-	read_lock(&state->state_lock);
-	lsp = __nfs4_find_lock_state(state, fl_owner);
-	read_unlock(&state->state_lock);
-	return lsp;
-}
-
 /*
  * Return a compatible lock_state. If no initialized lock_state structure
  * exists, return an uninitialized one.
@@ -573,14 +558,13 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
 		return NULL;
 	lsp->ls_flags = 0;
 	lsp->ls_seqid = 0;	/* arbitrary */
-	lsp->ls_id = -1; 
 	memset(lsp->ls_stateid.data, 0, sizeof(lsp->ls_stateid.data));
 	atomic_set(&lsp->ls_count, 1);
 	lsp->ls_owner = fl_owner;
-	INIT_LIST_HEAD(&lsp->ls_locks);
 	spin_lock(&clp->cl_lock);
 	lsp->ls_id = nfs4_alloc_lockowner_id(clp);
 	spin_unlock(&clp->cl_lock);
+	INIT_LIST_HEAD(&lsp->ls_locks);
 	return lsp;
 }
 
@@ -590,121 +574,112 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
  *
  * The caller must be holding state->lock_sema and clp->cl_sem
  */
-struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner)
+static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner)
 {
-	struct nfs4_lock_state * lsp;
+	struct nfs4_lock_state *lsp, *new = NULL;
 	
-	lsp = nfs4_find_lock_state(state, owner);
-	if (lsp == NULL)
-		lsp = nfs4_alloc_lock_state(state, owner);
+	for(;;) {
+		spin_lock(&state->state_lock);
+		lsp = __nfs4_find_lock_state(state, owner);
+		if (lsp != NULL)
+			break;
+		if (new != NULL) {
+			new->ls_state = state;
+			list_add(&new->ls_locks, &state->lock_states);
+			set_bit(LK_STATE_IN_USE, &state->flags);
+			lsp = new;
+			new = NULL;
+			break;
+		}
+		spin_unlock(&state->state_lock);
+		new = nfs4_alloc_lock_state(state, owner);
+		if (new == NULL)
+			return NULL;
+	}
+	spin_unlock(&state->state_lock);
+	kfree(new);
 	return lsp;
 }
 
 /*
- * Byte-range lock aware utility to initialize the stateid of read/write
- * requests.
+ * Release reference to lock_state, and free it if we see that
+ * it is no longer in use
  */
-void
-nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t fl_owner)
+static void nfs4_put_lock_state(struct nfs4_lock_state *lsp)
 {
-	if (test_bit(LK_STATE_IN_USE, &state->flags)) {
-		struct nfs4_lock_state *lsp;
+	struct nfs4_state *state;
 
-		lsp = nfs4_find_lock_state(state, fl_owner);
-		if (lsp) {
-			memcpy(dst, &lsp->ls_stateid, sizeof(*dst));
-			nfs4_put_lock_state(lsp);
-			return;
-		}
-	}
-	memcpy(dst, &state->stateid, sizeof(*dst));
+	if (lsp == NULL)
+		return;
+	state = lsp->ls_state;
+	if (!atomic_dec_and_lock(&lsp->ls_count, &state->state_lock))
+		return;
+	list_del(&lsp->ls_locks);
+	if (list_empty(&state->lock_states))
+		clear_bit(LK_STATE_IN_USE, &state->flags);
+	spin_unlock(&state->state_lock);
+	kfree(lsp);
 }
 
-/*
-* Called with state->lock_sema and clp->cl_sem held.
-*/
-void nfs4_increment_lock_seqid(int status, struct nfs4_lock_state *lsp)
+static void nfs4_fl_copy_lock(struct file_lock *dst, struct file_lock *src)
 {
-	if (status == NFS_OK || seqid_mutating_err(-status))
-		lsp->ls_seqid++;
-}
+	struct nfs4_lock_state *lsp = src->fl_u.nfs4_fl.owner;
 
-/* 
-* Check to see if the request lock (type FL_UNLK) effects the fl lock.
-*
-* fl and request must have the same posix owner
-*
-* return: 
-* 0 -> fl not effected by request
-* 1 -> fl consumed by request
-*/
+	dst->fl_u.nfs4_fl.owner = lsp;
+	atomic_inc(&lsp->ls_count);
+}
 
-static int
-nfs4_check_unlock(struct file_lock *fl, struct file_lock *request)
+static void nfs4_fl_release_lock(struct file_lock *fl)
 {
-	if (fl->fl_start >= request->fl_start && fl->fl_end <= request->fl_end)
-		return 1;
-	return 0;
+	nfs4_put_lock_state(fl->fl_u.nfs4_fl.owner);
 }
 
-/*
- * Post an initialized lock_state on the state->lock_states list.
- */
-void nfs4_notify_setlk(struct nfs4_state *state, struct file_lock *request, struct nfs4_lock_state *lsp)
+static struct file_lock_operations nfs4_fl_lock_ops = {
+	.fl_copy_lock = nfs4_fl_copy_lock,
+	.fl_release_private = nfs4_fl_release_lock,
+};
+
+int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl)
 {
-	if (!list_empty(&lsp->ls_locks))
-		return;
-	atomic_inc(&lsp->ls_count);
-	write_lock(&state->state_lock);
-	list_add(&lsp->ls_locks, &state->lock_states);
-	set_bit(LK_STATE_IN_USE, &state->flags);
-	write_unlock(&state->state_lock);
+	struct nfs4_lock_state *lsp;
+
+	if (fl->fl_ops != NULL)
+		return 0;
+	lsp = nfs4_get_lock_state(state, fl->fl_owner);
+	if (lsp == NULL)
+		return -ENOMEM;
+	fl->fl_u.nfs4_fl.owner = lsp;
+	fl->fl_ops = &nfs4_fl_lock_ops;
+	return 0;
 }
 
-/* 
- * to decide to 'reap' lock state:
- * 1) search i_flock for file_locks with fl.lock_state = to ls.
- * 2) determine if unlock will consume found lock. 
- * 	if so, reap
- *
- * 	else, don't reap.
- *
+/*
+ * Byte-range lock aware utility to initialize the stateid of read/write
+ * requests.
  */
-void
-nfs4_notify_unlck(struct nfs4_state *state, struct file_lock *request, struct nfs4_lock_state *lsp)
+void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t fl_owner)
 {
-	struct inode *inode = state->inode;
-	struct file_lock *fl;
+	struct nfs4_lock_state *lsp;
 
-	for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) {
-		if (!(fl->fl_flags & FL_POSIX))
-			continue;
-		if (fl->fl_owner != lsp->ls_owner)
-			continue;
-		/* Exit if we find at least one lock which is not consumed */
-		if (nfs4_check_unlock(fl,request) == 0)
-			return;
-	}
+	memcpy(dst, &state->stateid, sizeof(*dst));
+	if (test_bit(LK_STATE_IN_USE, &state->flags) == 0)
+		return;
 
-	write_lock(&state->state_lock);
-	list_del_init(&lsp->ls_locks);
-	if (list_empty(&state->lock_states))
-		clear_bit(LK_STATE_IN_USE, &state->flags);
-	write_unlock(&state->state_lock);
+	spin_lock(&state->state_lock);
+	lsp = __nfs4_find_lock_state(state, fl_owner);
+	if (lsp != NULL && (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0)
+		memcpy(dst, &lsp->ls_stateid, sizeof(*dst));
+	spin_unlock(&state->state_lock);
 	nfs4_put_lock_state(lsp);
 }
 
 /*
- * Release reference to lock_state, and free it if we see that
- * it is no longer in use
- */
-void
-nfs4_put_lock_state(struct nfs4_lock_state *lsp)
+* Called with state->lock_sema and clp->cl_sem held.
+*/
+void nfs4_increment_lock_seqid(int status, struct nfs4_lock_state *lsp)
 {
-	if (!atomic_dec_and_test(&lsp->ls_count))
-		return;
-	BUG_ON (!list_empty(&lsp->ls_locks));
-	kfree(lsp);
+	if (status == NFS_OK || seqid_mutating_err(-status))
+		lsp->ls_seqid++;
 }
 
 /*
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 5f4de05..6c564ef 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -51,6 +51,7 @@
 #include <linux/nfs4.h>
 #include <linux/nfs_fs.h>
 #include <linux/nfs_idmap.h>
+#include "nfs4_fs.h"
 
 #define NFSDBG_FACILITY		NFSDBG_XDR
 
@@ -82,12 +83,16 @@ static int nfs_stat_to_errno(int);
 #define encode_getfh_maxsz      (op_encode_hdr_maxsz)
 #define decode_getfh_maxsz      (op_decode_hdr_maxsz + 1 + \
 				((3+NFS4_FHSIZE) >> 2))
-#define encode_getattr_maxsz    (op_encode_hdr_maxsz + 3)
+#define nfs4_fattr_bitmap_maxsz 3
+#define encode_getattr_maxsz    (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
 #define nfs4_name_maxsz		(1 + ((3 + NFS4_MAXNAMLEN) >> 2))
 #define nfs4_path_maxsz		(1 + ((3 + NFS4_MAXPATHLEN) >> 2))
-#define nfs4_fattr_bitmap_maxsz (36 + 2 * nfs4_name_maxsz)
-#define decode_getattr_maxsz    (op_decode_hdr_maxsz + 3 + \
-                                nfs4_fattr_bitmap_maxsz)
+/* This is based on getfattr, which uses the most attributes: */
+#define nfs4_fattr_value_maxsz	(1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
+				3 + 3 + 3 + 2 * nfs4_name_maxsz))
+#define nfs4_fattr_maxsz	(nfs4_fattr_bitmap_maxsz + \
+				nfs4_fattr_value_maxsz)
+#define decode_getattr_maxsz    (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
 #define encode_savefh_maxsz     (op_encode_hdr_maxsz)
 #define decode_savefh_maxsz     (op_decode_hdr_maxsz)
 #define encode_fsinfo_maxsz	(op_encode_hdr_maxsz + 2)
@@ -122,11 +127,11 @@ static int nfs_stat_to_errno(int);
 #define encode_symlink_maxsz	(op_encode_hdr_maxsz + \
 				1 + nfs4_name_maxsz + \
 				nfs4_path_maxsz + \
-				nfs4_fattr_bitmap_maxsz)
+				nfs4_fattr_maxsz)
 #define decode_symlink_maxsz	(op_decode_hdr_maxsz + 8)
 #define encode_create_maxsz	(op_encode_hdr_maxsz + \
 				2 + nfs4_name_maxsz + \
-				nfs4_fattr_bitmap_maxsz)
+				nfs4_fattr_maxsz)
 #define decode_create_maxsz	(op_decode_hdr_maxsz + 8)
 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
@@ -205,7 +210,7 @@ static int nfs_stat_to_errno(int);
 #define NFS4_enc_setattr_sz     (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
                                 op_encode_hdr_maxsz + 4 + \
-                                nfs4_fattr_bitmap_maxsz + \
+                                nfs4_fattr_maxsz + \
                                 encode_getattr_maxsz)
 #define NFS4_dec_setattr_sz     (compound_decode_hdr_maxsz + \
                                 decode_putfh_maxsz + \
@@ -360,6 +365,20 @@ static int nfs_stat_to_errno(int);
 				encode_delegreturn_maxsz)
 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
 				decode_delegreturn_maxsz)
+#define NFS4_enc_getacl_sz	(compound_encode_hdr_maxsz + \
+				encode_putfh_maxsz + \
+				encode_getattr_maxsz)
+#define NFS4_dec_getacl_sz	(compound_decode_hdr_maxsz + \
+				decode_putfh_maxsz + \
+				op_decode_hdr_maxsz + \
+				nfs4_fattr_bitmap_maxsz + 1)
+#define NFS4_enc_setacl_sz	(compound_encode_hdr_maxsz + \
+				encode_putfh_maxsz + \
+				op_encode_hdr_maxsz + 4 + \
+				nfs4_fattr_bitmap_maxsz + 1)
+#define NFS4_dec_setacl_sz	(compound_decode_hdr_maxsz + \
+				decode_putfh_maxsz + \
+				op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
 
 static struct {
 	unsigned int	mode;
@@ -459,7 +478,7 @@ static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const s
 	 * In the worst-case, this would be
 	 *   12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
 	 *          = 36 bytes, plus any contribution from variable-length fields
-	 *            such as owner/group/acl's.
+	 *            such as owner/group.
 	 */
 	len = 16;
 
@@ -660,8 +679,6 @@ static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1
 
 static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask)
 {
-	extern u32 nfs4_fattr_bitmap[];
-
 	return encode_getattr_two(xdr,
 			bitmask[0] & nfs4_fattr_bitmap[0],
 			bitmask[1] & nfs4_fattr_bitmap[1]);
@@ -669,8 +686,6 @@ static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask)
 
 static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask)
 {
-	extern u32 nfs4_fsinfo_bitmap[];
-
 	return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
 			bitmask[1] & nfs4_fsinfo_bitmap[1]);
 }
@@ -969,7 +984,6 @@ static int encode_putrootfh(struct xdr_stream *xdr)
 
 static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
 {
-	extern nfs4_stateid zero_stateid;
 	nfs4_stateid stateid;
 	uint32_t *p;
 
@@ -1000,6 +1014,10 @@ static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args)
 static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req)
 {
 	struct rpc_auth *auth = req->rq_task->tk_auth;
+	uint32_t attrs[2] = {
+		FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
+		FATTR4_WORD1_MOUNTED_ON_FILEID,
+	};
 	int replen;
 	uint32_t *p;
 
@@ -1010,13 +1028,20 @@ static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
 	WRITE32(readdir->count >> 1);  /* We're not doing readdirplus */
 	WRITE32(readdir->count);
 	WRITE32(2);
-	if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) {
-		WRITE32(0);
-		WRITE32(FATTR4_WORD1_MOUNTED_ON_FILEID);
-	} else {
-		WRITE32(FATTR4_WORD0_FILEID);
-		WRITE32(0);
-	}
+	/* Switch to mounted_on_fileid if the server supports it */
+	if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
+		attrs[0] &= ~FATTR4_WORD0_FILEID;
+	else
+		attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
+	WRITE32(attrs[0] & readdir->bitmask[0]);
+	WRITE32(attrs[1] & readdir->bitmask[1]);
+	dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n",
+			__FUNCTION__,
+			(unsigned long long)readdir->cookie,
+			((u32 *)readdir->verifier.data)[0],
+			((u32 *)readdir->verifier.data)[1],
+			attrs[0] & readdir->bitmask[0],
+			attrs[1] & readdir->bitmask[1]);
 
 	/* set up reply kvec
 	 *    toplevel_status + taglen + rescount + OP_PUTFH + status
@@ -1025,6 +1050,9 @@ static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
 	replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2;
 	xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages,
 			 readdir->pgbase, readdir->count);
+	dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
+			__FUNCTION__, replen, readdir->pages,
+			readdir->pgbase, readdir->count);
 
 	return 0;
 }
@@ -1089,6 +1117,25 @@ static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client
 }
 
 static int
+encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg)
+{
+	uint32_t *p;
+
+	RESERVE_SPACE(4+sizeof(zero_stateid.data));
+	WRITE32(OP_SETATTR);
+	WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
+	RESERVE_SPACE(2*4);
+	WRITE32(1);
+	WRITE32(FATTR4_WORD0_ACL);
+	if (arg->acl_len % 4)
+		return -EINVAL;
+	RESERVE_SPACE(4);
+	WRITE32(arg->acl_len);
+	xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
+	return 0;
+}
+
+static int
 encode_savefh(struct xdr_stream *xdr)
 {
 	uint32_t *p;
@@ -1632,6 +1679,34 @@ out:
 }
 
 /*
+ * Encode a GETACL request
+ */
+static int
+nfs4_xdr_enc_getacl(struct rpc_rqst *req, uint32_t *p,
+		struct nfs_getaclargs *args)
+{
+	struct xdr_stream xdr;
+	struct rpc_auth *auth = req->rq_task->tk_auth;
+	struct compound_hdr hdr = {
+		.nops   = 2,
+	};
+	int replen, status;
+
+	xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+	encode_compound_hdr(&xdr, &hdr);
+	status = encode_putfh(&xdr, args->fh);
+	if (status)
+		goto out;
+	status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0);
+	/* set up reply buffer: */
+	replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2;
+	xdr_inline_pages(&req->rq_rcv_buf, replen,
+		args->acl_pages, args->acl_pgbase, args->acl_len);
+out:
+	return status;
+}
+
+/*
  * Encode a WRITE request
  */
 static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
@@ -1697,7 +1772,6 @@ static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs4_fs
  */
 static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct nfs4_pathconf_arg *args)
 {
-	extern u32 nfs4_pathconf_bitmap[2];
 	struct xdr_stream xdr;
 	struct compound_hdr hdr = {
 		.nops = 2,
@@ -1718,7 +1792,6 @@ static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct
  */
 static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, uint32_t *p, const struct nfs4_statfs_arg *args)
 {
-	extern u32 nfs4_statfs_bitmap[];
 	struct xdr_stream xdr;
 	struct compound_hdr hdr = {
 		.nops = 2,
@@ -3003,6 +3076,11 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n
 		return status;
 	READ_BUF(8);
 	COPYMEM(readdir->verifier.data, 8);
+	dprintk("%s: verifier = 0x%x%x\n",
+			__FUNCTION__,
+			((u32 *)readdir->verifier.data)[0],
+			((u32 *)readdir->verifier.data)[1]);
+
 
 	hdrlen = (char *) p - (char *) iov->iov_base;
 	recvd = rcvbuf->len - hdrlen;
@@ -3017,12 +3095,14 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n
 	for (nr = 0; *p++; nr++) {
 		if (p + 3 > end)
 			goto short_pkt;
+		dprintk("cookie = %Lu, ", *((unsigned long long *)p));
 		p += 2;			/* cookie */
 		len = ntohl(*p++);	/* filename length */
 		if (len > NFS4_MAXNAMLEN) {
 			printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len);
 			goto err_unmap;
 		}
+		dprintk("filename = %*s\n", len, (char *)p);
 		p += XDR_QUADLEN(len);
 		if (p + 1 > end)
 			goto short_pkt;
@@ -3042,6 +3122,7 @@ out:
 	kunmap_atomic(kaddr, KM_USER0);
 	return 0;
 short_pkt:
+	dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr);
 	entry[0] = entry[1] = 0;
 	/* truncate listing ? */
 	if (!nr) {
@@ -3127,6 +3208,47 @@ static int decode_renew(struct xdr_stream *xdr)
 	return decode_op_hdr(xdr, OP_RENEW);
 }
 
+static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
+		size_t *acl_len)
+{
+	uint32_t *savep;
+	uint32_t attrlen,
+		 bitmap[2] = {0};
+	struct kvec *iov = req->rq_rcv_buf.head;
+	int status;
+
+	*acl_len = 0;
+	if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
+		goto out;
+	if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
+		goto out;
+	if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
+		goto out;
+
+	if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
+		return -EIO;
+	if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
+		int hdrlen, recvd;
+
+		/* We ignore &savep and don't do consistency checks on
+		 * the attr length.  Let userspace figure it out.... */
+		hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
+		recvd = req->rq_rcv_buf.len - hdrlen;
+		if (attrlen > recvd) {
+			printk(KERN_WARNING "NFS: server cheating in getattr"
+					" acl reply: attrlen %u > recvd %u\n",
+					attrlen, recvd);
+			return -EINVAL;
+		}
+		if (attrlen <= *acl_len)
+			xdr_read_pages(xdr, attrlen);
+		*acl_len = attrlen;
+	}
+
+out:
+	return status;
+}
+
 static int
 decode_savefh(struct xdr_stream *xdr)
 {
@@ -3418,6 +3540,71 @@ out:
 
 }
 
+/*
+ * Encode an SETACL request
+ */
+static int
+nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args)
+{
+        struct xdr_stream xdr;
+        struct compound_hdr hdr = {
+                .nops   = 2,
+        };
+        int status;
+
+        xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+        encode_compound_hdr(&xdr, &hdr);
+        status = encode_putfh(&xdr, args->fh);
+        if (status)
+                goto out;
+        status = encode_setacl(&xdr, args);
+out:
+        return status;
+}
+/*
+ * Decode SETACL response
+ */
+static int
+nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res)
+{
+	struct xdr_stream xdr;
+	struct compound_hdr hdr;
+	int status;
+
+	xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+	status = decode_compound_hdr(&xdr, &hdr);
+	if (status)
+		goto out;
+	status = decode_putfh(&xdr);
+	if (status)
+		goto out;
+	status = decode_setattr(&xdr, res);
+out:
+	return status;
+}
+
+/*
+ * Decode GETACL response
+ */
+static int
+nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, uint32_t *p, size_t *acl_len)
+{
+	struct xdr_stream xdr;
+	struct compound_hdr hdr;
+	int status;
+
+	xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+	status = decode_compound_hdr(&xdr, &hdr);
+	if (status)
+		goto out;
+	status = decode_putfh(&xdr);
+	if (status)
+		goto out;
+	status = decode_getacl(&xdr, rqstp, acl_len);
+
+out:
+	return status;
+}
 
 /*
  * Decode CLOSE response
@@ -3895,6 +4082,12 @@ uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus)
 	}
 	len = XDR_QUADLEN(ntohl(*p++));	/* attribute buffer length */
 	if (len > 0) {
+		if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) {
+			bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
+			/* Ignore the return value of rdattr_error for now */
+			p++;
+			len--;
+		}
 		if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID)
 			xdr_decode_hyper(p, &entry->ino);
 		else if (bitmap[0] == FATTR4_WORD0_FILEID)
@@ -3934,6 +4127,8 @@ static struct {
 	{ NFS4ERR_DQUOT,	EDQUOT		},
 	{ NFS4ERR_STALE,	ESTALE		},
 	{ NFS4ERR_BADHANDLE,	EBADHANDLE	},
+	{ NFS4ERR_BADOWNER,	EINVAL		},
+	{ NFS4ERR_BADNAME,	EINVAL		},
 	{ NFS4ERR_BAD_COOKIE,	EBADCOOKIE	},
 	{ NFS4ERR_NOTSUPP,	ENOTSUPP	},
 	{ NFS4ERR_TOOSMALL,	ETOOSMALL	},
@@ -4019,6 +4214,8 @@ struct rpc_procinfo	nfs4_procedures[] = {
   PROC(READDIR,		enc_readdir,	dec_readdir),
   PROC(SERVER_CAPS,	enc_server_caps, dec_server_caps),
   PROC(DELEGRETURN,	enc_delegreturn, dec_delegreturn),
+  PROC(GETACL,		enc_getacl,	dec_getacl),
+  PROC(SETACL,		enc_setacl,	dec_setacl),
 };
 
 struct rpc_version		nfs_version4 = {
diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
index fd5bc59..1b272a1 100644
--- a/fs/nfs/nfsroot.c
+++ b/fs/nfs/nfsroot.c
@@ -124,6 +124,7 @@ enum {
 	Opt_soft, Opt_hard, Opt_intr,
 	Opt_nointr, Opt_posix, Opt_noposix, Opt_cto, Opt_nocto, Opt_ac, 
 	Opt_noac, Opt_lock, Opt_nolock, Opt_v2, Opt_v3, Opt_udp, Opt_tcp,
+	Opt_acl, Opt_noacl,
 	/* Error token */
 	Opt_err
 };
@@ -158,6 +159,8 @@ static match_table_t __initdata tokens = {
 	{Opt_udp, "udp"},
 	{Opt_tcp, "proto=tcp"},
 	{Opt_tcp, "tcp"},
+	{Opt_acl, "acl"},
+	{Opt_noacl, "noacl"},
 	{Opt_err, NULL}
 	
 };
@@ -266,6 +269,12 @@ static int __init root_nfs_parse(char *name, char *buf)
 			case Opt_tcp:
 				nfs_data.flags |= NFS_MOUNT_TCP;
 				break;
+			case Opt_acl:
+				nfs_data.flags &= ~NFS_MOUNT_NOACL;
+				break;
+			case Opt_noacl:
+				nfs_data.flags |= NFS_MOUNT_NOACL;
+				break;
 			default : 
 				return 0;
 		}
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 4f1ba72..d53857b 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -107,11 +107,38 @@ void nfs_unlock_request(struct nfs_page *req)
 	smp_mb__before_clear_bit();
 	clear_bit(PG_BUSY, &req->wb_flags);
 	smp_mb__after_clear_bit();
-	wake_up_all(&req->wb_context->waitq);
+	wake_up_bit(&req->wb_flags, PG_BUSY);
 	nfs_release_request(req);
 }
 
 /**
+ * nfs_set_page_writeback_locked - Lock a request for writeback
+ * @req:
+ */
+int nfs_set_page_writeback_locked(struct nfs_page *req)
+{
+	struct nfs_inode *nfsi = NFS_I(req->wb_context->dentry->d_inode);
+
+	if (!nfs_lock_request(req))
+		return 0;
+	radix_tree_tag_set(&nfsi->nfs_page_tree, req->wb_index, NFS_PAGE_TAG_WRITEBACK);
+	return 1;
+}
+
+/**
+ * nfs_clear_page_writeback - Unlock request and wake up sleepers
+ */
+void nfs_clear_page_writeback(struct nfs_page *req)
+{
+	struct nfs_inode *nfsi = NFS_I(req->wb_context->dentry->d_inode);
+
+	spin_lock(&nfsi->req_lock);
+	radix_tree_tag_clear(&nfsi->nfs_page_tree, req->wb_index, NFS_PAGE_TAG_WRITEBACK);
+	spin_unlock(&nfsi->req_lock);
+	nfs_unlock_request(req);
+}
+
+/**
  * nfs_clear_request - Free up all resources allocated to the request
  * @req:
  *
@@ -150,34 +177,15 @@ nfs_release_request(struct nfs_page *req)
 	nfs_page_free(req);
 }
 
-/**
- * nfs_list_add_request - Insert a request into a sorted list
- * @req: request
- * @head: head of list into which to insert the request.
- *
- * Note that the wb_list is sorted by page index in order to facilitate
- * coalescing of requests.
- * We use an insertion sort that is optimized for the case of appended
- * writes.
- */
-void
-nfs_list_add_request(struct nfs_page *req, struct list_head *head)
+static int nfs_wait_bit_interruptible(void *word)
 {
-	struct list_head *pos;
+	int ret = 0;
 
-#ifdef NFS_PARANOIA
-	if (!list_empty(&req->wb_list)) {
-		printk(KERN_ERR "NFS: Add to list failed!\n");
-		BUG();
-	}
-#endif
-	list_for_each_prev(pos, head) {
-		struct nfs_page	*p = nfs_list_entry(pos);
-		if (p->wb_index < req->wb_index)
-			break;
-	}
-	list_add(&req->wb_list, pos);
-	req->wb_list_head = head;
+	if (signal_pending(current))
+		ret = -ERESTARTSYS;
+	else
+		schedule();
+	return ret;
 }
 
 /**
@@ -190,12 +198,22 @@ nfs_list_add_request(struct nfs_page *req, struct list_head *head)
 int
 nfs_wait_on_request(struct nfs_page *req)
 {
-	struct inode	*inode = req->wb_context->dentry->d_inode;
-        struct rpc_clnt	*clnt = NFS_CLIENT(inode);
-
-	if (!NFS_WBACK_BUSY(req))
-		return 0;
-	return nfs_wait_event(clnt, req->wb_context->waitq, !NFS_WBACK_BUSY(req));
+        struct rpc_clnt	*clnt = NFS_CLIENT(req->wb_context->dentry->d_inode);
+	sigset_t oldmask;
+	int ret = 0;
+
+	if (!test_bit(PG_BUSY, &req->wb_flags))
+		goto out;
+	/*
+	 * Note: the call to rpc_clnt_sigmask() suffices to ensure that we
+	 *	 are not interrupted if intr flag is not set
+	 */
+	rpc_clnt_sigmask(clnt, &oldmask);
+	ret = out_of_line_wait_on_bit(&req->wb_flags, PG_BUSY,
+			nfs_wait_bit_interruptible, TASK_INTERRUPTIBLE);
+	rpc_clnt_sigunmask(clnt, &oldmask);
+out:
+	return ret;
 }
 
 /**
@@ -243,6 +261,62 @@ nfs_coalesce_requests(struct list_head *head, struct list_head *dst,
 	return npages;
 }
 
+#define NFS_SCAN_MAXENTRIES 16
+/**
+ * nfs_scan_lock_dirty - Scan the radix tree for dirty requests
+ * @nfsi: NFS inode
+ * @dst: Destination list
+ * @idx_start: lower bound of page->index to scan
+ * @npages: idx_start + npages sets the upper bound to scan.
+ *
+ * Moves elements from one of the inode request lists.
+ * If the number of requests is set to 0, the entire address_space
+ * starting at index idx_start, is scanned.
+ * The requests are *not* checked to ensure that they form a contiguous set.
+ * You must be holding the inode's req_lock when calling this function
+ */
+int
+nfs_scan_lock_dirty(struct nfs_inode *nfsi, struct list_head *dst,
+	      unsigned long idx_start, unsigned int npages)
+{
+	struct nfs_page *pgvec[NFS_SCAN_MAXENTRIES];
+	struct nfs_page *req;
+	unsigned long idx_end;
+	int found, i;
+	int res;
+
+	res = 0;
+	if (npages == 0)
+		idx_end = ~0;
+	else
+		idx_end = idx_start + npages - 1;
+
+	for (;;) {
+		found = radix_tree_gang_lookup_tag(&nfsi->nfs_page_tree,
+				(void **)&pgvec[0], idx_start, NFS_SCAN_MAXENTRIES,
+				NFS_PAGE_TAG_DIRTY);
+		if (found <= 0)
+			break;
+		for (i = 0; i < found; i++) {
+			req = pgvec[i];
+			if (req->wb_index > idx_end)
+				goto out;
+
+			idx_start = req->wb_index + 1;
+
+			if (nfs_set_page_writeback_locked(req)) {
+				radix_tree_tag_clear(&nfsi->nfs_page_tree,
+						req->wb_index, NFS_PAGE_TAG_DIRTY);
+				nfs_list_remove_request(req);
+				nfs_list_add_request(req, dst);
+				res++;
+			}
+		}
+	}
+out:
+	return res;
+}
+
 /**
  * nfs_scan_list - Scan a list for matching requests
  * @head: One of the NFS inode request lists
@@ -280,7 +354,7 @@ nfs_scan_list(struct list_head *head, struct list_head *dst,
 		if (req->wb_index > idx_end)
 			break;
 
-		if (!nfs_lock_request(req))
+		if (!nfs_set_page_writeback_locked(req))
 			continue;
 		nfs_list_remove_request(req);
 		nfs_list_add_request(req, dst);
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index d31b4d6..cedf636 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -622,6 +622,7 @@ struct nfs_rpc_ops	nfs_v2_clientops = {
 	.version	= 2,		       /* protocol version */
 	.dentry_ops	= &nfs_dentry_operations,
 	.dir_inode_ops	= &nfs_dir_inode_operations,
+	.file_inode_ops	= &nfs_file_inode_operations,
 	.getroot	= nfs_proc_get_root,
 	.getattr	= nfs_proc_getattr,
 	.setattr	= nfs_proc_setattr,
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index a0042fb..6f866b8 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -173,7 +173,6 @@ static int nfs_readpage_async(struct nfs_open_context *ctx, struct inode *inode,
 	if (len < PAGE_CACHE_SIZE)
 		memclear_highpage_flush(page, len, PAGE_CACHE_SIZE - len);
 
-	nfs_lock_request(new);
 	nfs_list_add_request(new, &one_request);
 	nfs_pagein_one(&one_request, inode);
 	return 0;
@@ -185,7 +184,6 @@ static void nfs_readpage_release(struct nfs_page *req)
 
 	nfs_clear_request(req);
 	nfs_release_request(req);
-	nfs_unlock_request(req);
 
 	dprintk("NFS: read done (%s/%Ld %d@%Ld)\n",
 			req->wb_context->dentry->d_inode->i_sb->s_id,
@@ -553,7 +551,6 @@ readpage_async_filler(void *data, struct page *page)
 	}
 	if (len < PAGE_CACHE_SIZE)
 		memclear_highpage_flush(page, len, PAGE_CACHE_SIZE - len);
-	nfs_lock_request(new);
 	nfs_list_add_request(new, desc->head);
 	return 0;
 }
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 6f7a4af..5130eda 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -220,7 +220,7 @@ static int nfs_writepage_sync(struct nfs_open_context *ctx, struct inode *inode,
 		ClearPageError(page);
 
 io_error:
-	nfs_end_data_update_defer(inode);
+	nfs_end_data_update(inode);
 	nfs_writedata_free(wdata);
 	return written ? written : result;
 }
@@ -352,7 +352,7 @@ int nfs_writepages(struct address_space *mapping, struct writeback_control *wbc)
 		if (err < 0)
 			goto out;
 	}
-	err = nfs_commit_inode(inode, 0, 0, wb_priority(wbc));
+	err = nfs_commit_inode(inode, wb_priority(wbc));
 	if (err > 0) {
 		wbc->nr_to_write -= err;
 		err = 0;
@@ -401,7 +401,7 @@ static void nfs_inode_remove_request(struct nfs_page *req)
 	nfsi->npages--;
 	if (!nfsi->npages) {
 		spin_unlock(&nfsi->req_lock);
-		nfs_end_data_update_defer(inode);
+		nfs_end_data_update(inode);
 		iput(inode);
 	} else
 		spin_unlock(&nfsi->req_lock);
@@ -446,6 +446,8 @@ nfs_mark_request_dirty(struct nfs_page *req)
 	struct nfs_inode *nfsi = NFS_I(inode);
 
 	spin_lock(&nfsi->req_lock);
+	radix_tree_tag_set(&nfsi->nfs_page_tree,
+			req->wb_index, NFS_PAGE_TAG_DIRTY);
 	nfs_list_add_request(req, &nfsi->dirty);
 	nfsi->ndirty++;
 	spin_unlock(&nfsi->req_lock);
@@ -503,13 +505,12 @@ nfs_wait_on_requests(struct inode *inode, unsigned long idx_start, unsigned int
 
 	spin_lock(&nfsi->req_lock);
 	next = idx_start;
-	while (radix_tree_gang_lookup(&nfsi->nfs_page_tree, (void **)&req, next, 1)) {
+	while (radix_tree_gang_lookup_tag(&nfsi->nfs_page_tree, (void **)&req, next, 1, NFS_PAGE_TAG_WRITEBACK)) {
 		if (req->wb_index > idx_end)
 			break;
 
 		next = req->wb_index + 1;
-		if (!NFS_WBACK_BUSY(req))
-			continue;
+		BUG_ON(!NFS_WBACK_BUSY(req));
 
 		atomic_inc(&req->wb_count);
 		spin_unlock(&nfsi->req_lock);
@@ -538,12 +539,15 @@ static int
 nfs_scan_dirty(struct inode *inode, struct list_head *dst, unsigned long idx_start, unsigned int npages)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
-	int	res;
-	res = nfs_scan_list(&nfsi->dirty, dst, idx_start, npages);
-	nfsi->ndirty -= res;
-	sub_page_state(nr_dirty,res);
-	if ((nfsi->ndirty == 0) != list_empty(&nfsi->dirty))
-		printk(KERN_ERR "NFS: desynchronized value of nfs_i.ndirty.\n");
+	int res = 0;
+
+	if (nfsi->ndirty != 0) {
+		res = nfs_scan_lock_dirty(nfsi, dst, idx_start, npages);
+		nfsi->ndirty -= res;
+		sub_page_state(nr_dirty,res);
+		if ((nfsi->ndirty == 0) != list_empty(&nfsi->dirty))
+			printk(KERN_ERR "NFS: desynchronized value of nfs_i.ndirty.\n");
+	}
 	return res;
 }
 
@@ -562,11 +566,14 @@ static int
 nfs_scan_commit(struct inode *inode, struct list_head *dst, unsigned long idx_start, unsigned int npages)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
-	int	res;
-	res = nfs_scan_list(&nfsi->commit, dst, idx_start, npages);
-	nfsi->ncommit -= res;
-	if ((nfsi->ncommit == 0) != list_empty(&nfsi->commit))
-		printk(KERN_ERR "NFS: desynchronized value of nfs_i.ncommit.\n");
+	int res = 0;
+
+	if (nfsi->ncommit != 0) {
+		res = nfs_scan_list(&nfsi->commit, dst, idx_start, npages);
+		nfsi->ncommit -= res;
+		if ((nfsi->ncommit == 0) != list_empty(&nfsi->commit))
+			printk(KERN_ERR "NFS: desynchronized value of nfs_i.ncommit.\n");
+	}
 	return res;
 }
 #endif
@@ -750,7 +757,7 @@ int nfs_updatepage(struct file *file, struct page *page,
 	 * is entirely in cache, it may be more efficient to avoid
 	 * fragmenting write requests.
 	 */
-	if (PageUptodate(page) && inode->i_flock == NULL) {
+	if (PageUptodate(page) && inode->i_flock == NULL && !(file->f_mode & O_SYNC)) {
 		loff_t end_offs = i_size_read(inode) - 1;
 		unsigned long end_index = end_offs >> PAGE_CACHE_SHIFT;
 
@@ -821,7 +828,7 @@ out:
 #else
 	nfs_inode_remove_request(req);
 #endif
-	nfs_unlock_request(req);
+	nfs_clear_page_writeback(req);
 }
 
 static inline int flush_task_priority(int how)
@@ -952,7 +959,7 @@ out_bad:
 		nfs_writedata_free(data);
 	}
 	nfs_mark_request_dirty(req);
-	nfs_unlock_request(req);
+	nfs_clear_page_writeback(req);
 	return -ENOMEM;
 }
 
@@ -1002,7 +1009,7 @@ static int nfs_flush_one(struct list_head *head, struct inode *inode, int how)
 		struct nfs_page *req = nfs_list_entry(head->next);
 		nfs_list_remove_request(req);
 		nfs_mark_request_dirty(req);
-		nfs_unlock_request(req);
+		nfs_clear_page_writeback(req);
 	}
 	return -ENOMEM;
 }
@@ -1029,7 +1036,7 @@ nfs_flush_list(struct list_head *head, int wpages, int how)
 		req = nfs_list_entry(head->next);
 		nfs_list_remove_request(req);
 		nfs_mark_request_dirty(req);
-		nfs_unlock_request(req);
+		nfs_clear_page_writeback(req);
 	}
 	return error;
 }
@@ -1121,7 +1128,7 @@ static void nfs_writeback_done_full(struct nfs_write_data *data, int status)
 		nfs_inode_remove_request(req);
 #endif
 	next:
-		nfs_unlock_request(req);
+		nfs_clear_page_writeback(req);
 	}
 }
 
@@ -1210,36 +1217,24 @@ static void nfs_commit_rpcsetup(struct list_head *head,
 		struct nfs_write_data *data, int how)
 {
 	struct rpc_task		*task = &data->task;
-	struct nfs_page		*first, *last;
+	struct nfs_page		*first;
 	struct inode		*inode;
-	loff_t			start, end, len;
 
 	/* Set up the RPC argument and reply structs
 	 * NB: take care not to mess about with data->commit et al. */
 
 	list_splice_init(head, &data->pages);
 	first = nfs_list_entry(data->pages.next);
-	last = nfs_list_entry(data->pages.prev);
 	inode = first->wb_context->dentry->d_inode;
 
-	/*
-	 * Determine the offset range of requests in the COMMIT call.
-	 * We rely on the fact that data->pages is an ordered list...
-	 */
-	start = req_offset(first);
-	end = req_offset(last) + last->wb_bytes;
-	len = end - start;
-	/* If 'len' is not a 32-bit quantity, pass '0' in the COMMIT call */
-	if (end >= i_size_read(inode) || len < 0 || len > (~((u32)0) >> 1))
-		len = 0;
-
 	data->inode	  = inode;
 	data->cred	  = first->wb_context->cred;
 
 	data->args.fh     = NFS_FH(data->inode);
-	data->args.offset = start;
-	data->args.count  = len;
-	data->res.count   = len;
+	/* Note: we always request a commit of the entire inode */
+	data->args.offset = 0;
+	data->args.count  = 0;
+	data->res.count   = 0;
 	data->res.fattr   = &data->fattr;
 	data->res.verf    = &data->verf;
 	
@@ -1278,7 +1273,7 @@ nfs_commit_list(struct list_head *head, int how)
 		req = nfs_list_entry(head->next);
 		nfs_list_remove_request(req);
 		nfs_mark_request_commit(req);
-		nfs_unlock_request(req);
+		nfs_clear_page_writeback(req);
 	}
 	return -ENOMEM;
 }
@@ -1324,7 +1319,7 @@ nfs_commit_done(struct rpc_task *task)
 		dprintk(" mismatch\n");
 		nfs_mark_request_dirty(req);
 	next:
-		nfs_unlock_request(req);
+		nfs_clear_page_writeback(req);
 		res++;
 	}
 	sub_page_state(nr_unstable,res);
@@ -1342,16 +1337,23 @@ static int nfs_flush_inode(struct inode *inode, unsigned long idx_start,
 	spin_lock(&nfsi->req_lock);
 	res = nfs_scan_dirty(inode, &head, idx_start, npages);
 	spin_unlock(&nfsi->req_lock);
-	if (res)
-		error = nfs_flush_list(&head, NFS_SERVER(inode)->wpages, how);
+	if (res) {
+		struct nfs_server *server = NFS_SERVER(inode);
+
+		/* For single writes, FLUSH_STABLE is more efficient */
+		if (res == nfsi->npages && nfsi->npages <= server->wpages) {
+			if (res > 1 || nfs_list_entry(head.next)->wb_bytes <= server->wsize)
+				how |= FLUSH_STABLE;
+		}
+		error = nfs_flush_list(&head, server->wpages, how);
+	}
 	if (error < 0)
 		return error;
 	return res;
 }
 
 #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
-int nfs_commit_inode(struct inode *inode, unsigned long idx_start,
-		    unsigned int npages, int how)
+int nfs_commit_inode(struct inode *inode, int how)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
 	LIST_HEAD(head);
@@ -1359,15 +1361,13 @@ int nfs_commit_inode(struct inode *inode, unsigned long idx_start,
 				error = 0;
 
 	spin_lock(&nfsi->req_lock);
-	res = nfs_scan_commit(inode, &head, idx_start, npages);
+	res = nfs_scan_commit(inode, &head, 0, 0);
+	spin_unlock(&nfsi->req_lock);
 	if (res) {
-		res += nfs_scan_commit(inode, &head, 0, 0);
-		spin_unlock(&nfsi->req_lock);
 		error = nfs_commit_list(&head, how);
-	} else
-		spin_unlock(&nfsi->req_lock);
-	if (error < 0)
-		return error;
+		if (error < 0)
+			return error;
+	}
 	return res;
 }
 #endif
@@ -1389,7 +1389,7 @@ int nfs_sync_inode(struct inode *inode, unsigned long idx_start,
 			error = nfs_flush_inode(inode, idx_start, npages, how);
 #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
 		if (error == 0)
-			error = nfs_commit_inode(inode, idx_start, npages, how);
+			error = nfs_commit_inode(inode, how);
 #endif
 	} while (error > 0);
 	return error;
diff --git a/fs/nfs_common/Makefile b/fs/nfs_common/Makefile
new file mode 100644
index 0000000..f689ed8
--- /dev/null
+++ b/fs/nfs_common/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for Linux filesystem routines that are shared by client and server.
+#
+
+obj-$(CONFIG_NFS_ACL_SUPPORT) += nfs_acl.o
+
+nfs_acl-objs := nfsacl.o
diff --git a/fs/nfs_common/nfsacl.c b/fs/nfs_common/nfsacl.c
new file mode 100644
index 0000000..18c58c3
--- /dev/null
+++ b/fs/nfs_common/nfsacl.c
@@ -0,0 +1,257 @@
+/*
+ * fs/nfs_common/nfsacl.c
+ *
+ *  Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
+ */
+
+/*
+ * The Solaris nfsacl protocol represents some ACLs slightly differently
+ * than POSIX 1003.1e draft 17 does (and we do):
+ *
+ *  - Minimal ACLs always have an ACL_MASK entry, so they have
+ *    four instead of three entries.
+ *  - The ACL_MASK entry in such minimal ACLs always has the same
+ *    permissions as the ACL_GROUP_OBJ entry. (In extended ACLs
+ *    the ACL_MASK and ACL_GROUP_OBJ entries may differ.)
+ *  - The identifier fields of the ACL_USER_OBJ and ACL_GROUP_OBJ
+ *    entries contain the identifiers of the owner and owning group.
+ *    (In POSIX ACLs we always set them to ACL_UNDEFINED_ID).
+ *  - ACL entries in the kernel are kept sorted in ascending order
+ *    of (e_tag, e_id). Solaris ACLs are unsorted.
+ */
+
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/sunrpc/xdr.h>
+#include <linux/nfsacl.h>
+#include <linux/nfs3.h>
+#include <linux/sort.h>
+
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(nfsacl_encode);
+EXPORT_SYMBOL(nfsacl_decode);
+
+struct nfsacl_encode_desc {
+	struct xdr_array2_desc desc;
+	unsigned int count;
+	struct posix_acl *acl;
+	int typeflag;
+	uid_t uid;
+	gid_t gid;
+};
+
+static int
+xdr_nfsace_encode(struct xdr_array2_desc *desc, void *elem)
+{
+	struct nfsacl_encode_desc *nfsacl_desc =
+		(struct nfsacl_encode_desc *) desc;
+	u32 *p = (u32 *) elem;
+
+	if (nfsacl_desc->count < nfsacl_desc->acl->a_count) {
+		struct posix_acl_entry *entry =
+			&nfsacl_desc->acl->a_entries[nfsacl_desc->count++];
+
+		*p++ = htonl(entry->e_tag | nfsacl_desc->typeflag);
+		switch(entry->e_tag) {
+			case ACL_USER_OBJ:
+				*p++ = htonl(nfsacl_desc->uid);
+				break;
+			case ACL_GROUP_OBJ:
+				*p++ = htonl(nfsacl_desc->gid);
+				break;
+			case ACL_USER:
+			case ACL_GROUP:
+				*p++ = htonl(entry->e_id);
+				break;
+			default:  /* Solaris depends on that! */
+				*p++ = 0;
+				break;
+		}
+		*p++ = htonl(entry->e_perm & S_IRWXO);
+	} else {
+		const struct posix_acl_entry *pa, *pe;
+		int group_obj_perm = ACL_READ|ACL_WRITE|ACL_EXECUTE;
+
+		FOREACH_ACL_ENTRY(pa, nfsacl_desc->acl, pe) {
+			if (pa->e_tag == ACL_GROUP_OBJ) {
+				group_obj_perm = pa->e_perm & S_IRWXO;
+				break;
+			}
+		}
+		/* fake up ACL_MASK entry */
+		*p++ = htonl(ACL_MASK | nfsacl_desc->typeflag);
+		*p++ = htonl(0);
+		*p++ = htonl(group_obj_perm);
+	}
+
+	return 0;
+}
+
+unsigned int
+nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
+	      struct posix_acl *acl, int encode_entries, int typeflag)
+{
+	int entries = (acl && acl->a_count) ? max_t(int, acl->a_count, 4) : 0;
+	struct nfsacl_encode_desc nfsacl_desc = {
+		.desc = {
+			.elem_size = 12,
+			.array_len = encode_entries ? entries : 0,
+			.xcode = xdr_nfsace_encode,
+		},
+		.acl = acl,
+		.typeflag = typeflag,
+		.uid = inode->i_uid,
+		.gid = inode->i_gid,
+	};
+	int err;
+
+	if (entries > NFS_ACL_MAX_ENTRIES ||
+	    xdr_encode_word(buf, base, entries))
+		return -EINVAL;
+	err = xdr_encode_array2(buf, base + 4, &nfsacl_desc.desc);
+	if (!err)
+		err = 8 + nfsacl_desc.desc.elem_size *
+			  nfsacl_desc.desc.array_len;
+	return err;
+}
+
+struct nfsacl_decode_desc {
+	struct xdr_array2_desc desc;
+	unsigned int count;
+	struct posix_acl *acl;
+};
+
+static int
+xdr_nfsace_decode(struct xdr_array2_desc *desc, void *elem)
+{
+	struct nfsacl_decode_desc *nfsacl_desc =
+		(struct nfsacl_decode_desc *) desc;
+	u32 *p = (u32 *) elem;
+	struct posix_acl_entry *entry;
+
+	if (!nfsacl_desc->acl) {
+		if (desc->array_len > NFS_ACL_MAX_ENTRIES)
+			return -EINVAL;
+		nfsacl_desc->acl = posix_acl_alloc(desc->array_len, GFP_KERNEL);
+		if (!nfsacl_desc->acl)
+			return -ENOMEM;
+		nfsacl_desc->count = 0;
+	}
+
+	entry = &nfsacl_desc->acl->a_entries[nfsacl_desc->count++];
+	entry->e_tag = ntohl(*p++) & ~NFS_ACL_DEFAULT;
+	entry->e_id = ntohl(*p++);
+	entry->e_perm = ntohl(*p++);
+
+	switch(entry->e_tag) {
+		case ACL_USER_OBJ:
+		case ACL_USER:
+		case ACL_GROUP_OBJ:
+		case ACL_GROUP:
+		case ACL_OTHER:
+			if (entry->e_perm & ~S_IRWXO)
+				return -EINVAL;
+			break;
+		case ACL_MASK:
+			/* Solaris sometimes sets additonal bits in the mask */
+			entry->e_perm &= S_IRWXO;
+			break;
+		default:
+			return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int
+cmp_acl_entry(const void *x, const void *y)
+{
+	const struct posix_acl_entry *a = x, *b = y;
+
+	if (a->e_tag != b->e_tag)
+		return a->e_tag - b->e_tag;
+	else if (a->e_id > b->e_id)
+		return 1;
+	else if (a->e_id < b->e_id)
+		return -1;
+	else
+		return 0;
+}
+
+/*
+ * Convert from a Solaris ACL to a POSIX 1003.1e draft 17 ACL.
+ */
+static int
+posix_acl_from_nfsacl(struct posix_acl *acl)
+{
+	struct posix_acl_entry *pa, *pe,
+	       *group_obj = NULL, *mask = NULL;
+
+	if (!acl)
+		return 0;
+
+	sort(acl->a_entries, acl->a_count, sizeof(struct posix_acl_entry),
+	     cmp_acl_entry, NULL);
+
+	/* Clear undefined identifier fields and find the ACL_GROUP_OBJ
+	   and ACL_MASK entries. */
+	FOREACH_ACL_ENTRY(pa, acl, pe) {
+		switch(pa->e_tag) {
+			case ACL_USER_OBJ:
+				pa->e_id = ACL_UNDEFINED_ID;
+				break;
+			case ACL_GROUP_OBJ:
+				pa->e_id = ACL_UNDEFINED_ID;
+				group_obj = pa;
+				break;
+			case ACL_MASK:
+				mask = pa;
+				/* fall through */
+			case ACL_OTHER:
+				pa->e_id = ACL_UNDEFINED_ID;
+				break;
+		}
+	}
+	if (acl->a_count == 4 && group_obj && mask &&
+	    mask->e_perm == group_obj->e_perm) {
+		/* remove bogus ACL_MASK entry */
+		memmove(mask, mask+1, (3 - (mask - acl->a_entries)) *
+				      sizeof(struct posix_acl_entry));
+		acl->a_count = 3;
+	}
+	return 0;
+}
+
+unsigned int
+nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt,
+	      struct posix_acl **pacl)
+{
+	struct nfsacl_decode_desc nfsacl_desc = {
+		.desc = {
+			.elem_size = 12,
+			.xcode = pacl ? xdr_nfsace_decode : NULL,
+		},
+	};
+	u32 entries;
+	int err;
+
+	if (xdr_decode_word(buf, base, &entries) ||
+	    entries > NFS_ACL_MAX_ENTRIES)
+		return -EINVAL;
+	err = xdr_decode_array2(buf, base + 4, &nfsacl_desc.desc);
+	if (err)
+		return err;
+	if (pacl) {
+		if (entries != nfsacl_desc.desc.array_len ||
+		    posix_acl_from_nfsacl(nfsacl_desc.acl) != 0) {
+			posix_acl_release(nfsacl_desc.acl);
+			return -EINVAL;
+		}
+		*pacl = nfsacl_desc.acl;
+	}
+	if (aclcnt)
+		*aclcnt = entries;
+	return 8 + nfsacl_desc.desc.elem_size *
+		   nfsacl_desc.desc.array_len;
+}
diff --git a/fs/nfsd/Makefile b/fs/nfsd/Makefile
index b8680a2..9f043f4 100644
--- a/fs/nfsd/Makefile
+++ b/fs/nfsd/Makefile
@@ -6,7 +6,9 @@ obj-$(CONFIG_NFSD)	+= nfsd.o
 
 nfsd-y 			:= nfssvc.o nfsctl.o nfsproc.o nfsfh.o vfs.o \
 			   export.o auth.o lockd.o nfscache.o nfsxdr.o stats.o
+nfsd-$(CONFIG_NFSD_V2_ACL) += nfs2acl.o
 nfsd-$(CONFIG_NFSD_V3)	+= nfs3proc.o nfs3xdr.o
+nfsd-$(CONFIG_NFSD_V3_ACL) += nfs3acl.o
 nfsd-$(CONFIG_NFSD_V4)	+= nfs4proc.o nfs4xdr.o nfs4state.o nfs4idmap.o \
 			   nfs4acl.o nfs4callback.o
 nfsd-objs		:= $(nfsd-y)
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
new file mode 100644
index 0000000..7cbf068
--- /dev/null
+++ b/fs/nfsd/nfs2acl.c
@@ -0,0 +1,336 @@
+/*
+ * linux/fs/nfsd/nfsacl.c
+ *
+ * Process version 2 NFSACL requests.
+ *
+ * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
+ */
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfs.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr.h>
+#include <linux/nfsd/xdr3.h>
+#include <linux/posix_acl.h>
+#include <linux/nfsacl.h>
+
+#define NFSDDBG_FACILITY		NFSDDBG_PROC
+#define RETURN_STATUS(st)	{ resp->status = (st); return (st); }
+
+/*
+ * NULL call.
+ */
+static int
+nfsacld_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+{
+	return nfs_ok;
+}
+
+/*
+ * Get the Access and/or Default ACL of a file.
+ */
+static int nfsacld_proc_getacl(struct svc_rqst * rqstp,
+		struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp)
+{
+	svc_fh *fh;
+	struct posix_acl *acl;
+	int nfserr = 0;
+
+	dprintk("nfsd: GETACL(2acl)   %s\n", SVCFH_fmt(&argp->fh));
+
+	fh = fh_copy(&resp->fh, &argp->fh);
+	if ((nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP)))
+		RETURN_STATUS(nfserr_inval);
+
+	if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
+		RETURN_STATUS(nfserr_inval);
+	resp->mask = argp->mask;
+
+	if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
+		acl = nfsd_get_posix_acl(fh, ACL_TYPE_ACCESS);
+		if (IS_ERR(acl)) {
+			int err = PTR_ERR(acl);
+
+			if (err == -ENODATA || err == -EOPNOTSUPP)
+				acl = NULL;
+			else {
+				nfserr = nfserrno(err);
+				goto fail;
+			}
+		}
+		if (acl == NULL) {
+			/* Solaris returns the inode's minimum ACL. */
+
+			struct inode *inode = fh->fh_dentry->d_inode;
+			acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
+		}
+		resp->acl_access = acl;
+	}
+	if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) {
+		/* Check how Solaris handles requests for the Default ACL
+		   of a non-directory! */
+
+		acl = nfsd_get_posix_acl(fh, ACL_TYPE_DEFAULT);
+		if (IS_ERR(acl)) {
+			int err = PTR_ERR(acl);
+
+			if (err == -ENODATA || err == -EOPNOTSUPP)
+				acl = NULL;
+			else {
+				nfserr = nfserrno(err);
+				goto fail;
+			}
+		}
+		resp->acl_default = acl;
+	}
+
+	/* resp->acl_{access,default} are released in nfssvc_release_getacl. */
+	RETURN_STATUS(0);
+
+fail:
+	posix_acl_release(resp->acl_access);
+	posix_acl_release(resp->acl_default);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Set the Access and/or Default ACL of a file.
+ */
+static int nfsacld_proc_setacl(struct svc_rqst * rqstp,
+		struct nfsd3_setaclargs *argp,
+		struct nfsd_attrstat *resp)
+{
+	svc_fh *fh;
+	int nfserr = 0;
+
+	dprintk("nfsd: SETACL(2acl)   %s\n", SVCFH_fmt(&argp->fh));
+
+	fh = fh_copy(&resp->fh, &argp->fh);
+	nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
+
+	if (!nfserr) {
+		nfserr = nfserrno( nfsd_set_posix_acl(
+			fh, ACL_TYPE_ACCESS, argp->acl_access) );
+	}
+	if (!nfserr) {
+		nfserr = nfserrno( nfsd_set_posix_acl(
+			fh, ACL_TYPE_DEFAULT, argp->acl_default) );
+	}
+
+	/* argp->acl_{access,default} may have been allocated in
+	   nfssvc_decode_setaclargs. */
+	posix_acl_release(argp->acl_access);
+	posix_acl_release(argp->acl_default);
+	return nfserr;
+}
+
+/*
+ * Check file attributes
+ */
+static int nfsacld_proc_getattr(struct svc_rqst * rqstp,
+		struct nfsd_fhandle *argp, struct nfsd_attrstat *resp)
+{
+	dprintk("nfsd: GETATTR  %s\n", SVCFH_fmt(&argp->fh));
+
+	fh_copy(&resp->fh, &argp->fh);
+	return fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
+}
+
+/*
+ * Check file access
+ */
+static int nfsacld_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
+		struct nfsd3_accessres *resp)
+{
+	int nfserr;
+
+	dprintk("nfsd: ACCESS(2acl)   %s 0x%x\n",
+			SVCFH_fmt(&argp->fh),
+			argp->access);
+
+	fh_copy(&resp->fh, &argp->fh);
+	resp->access = argp->access;
+	nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
+	return nfserr;
+}
+
+/*
+ * XDR decode functions
+ */
+static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclargs *argp)
+{
+	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+		return 0;
+	argp->mask = ntohl(*p); p++;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+
+static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_setaclargs *argp)
+{
+	struct kvec *head = rqstp->rq_arg.head;
+	unsigned int base;
+	int n;
+
+	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+		return 0;
+	argp->mask = ntohl(*p++);
+	if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) ||
+	    !xdr_argsize_check(rqstp, p))
+		return 0;
+
+	base = (char *)p - (char *)head->iov_base;
+	n = nfsacl_decode(&rqstp->rq_arg, base, NULL,
+			  (argp->mask & NFS_ACL) ?
+			  &argp->acl_access : NULL);
+	if (n > 0)
+		n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,
+				  (argp->mask & NFS_DFACL) ?
+				  &argp->acl_default : NULL);
+	return (n > 0);
+}
+
+static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd_fhandle *argp)
+{
+	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+		return 0;
+	return xdr_argsize_check(rqstp, p);
+}
+
+static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_accessargs *argp)
+{
+	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+		return 0;
+	argp->access = ntohl(*p++);
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+/*
+ * XDR encode functions
+ */
+
+/* GETACL */
+static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclres *resp)
+{
+	struct dentry *dentry = resp->fh.fh_dentry;
+	struct inode *inode = dentry->d_inode;
+	int w = nfsacl_size(
+		(resp->mask & NFS_ACL)   ? resp->acl_access  : NULL,
+		(resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
+	struct kvec *head = rqstp->rq_res.head;
+	unsigned int base;
+	int n;
+
+	if (dentry == NULL || dentry->d_inode == NULL)
+		return 0;
+	inode = dentry->d_inode;
+
+	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
+	*p++ = htonl(resp->mask);
+	if (!xdr_ressize_check(rqstp, p))
+		return 0;
+	base = (char *)p - (char *)head->iov_base;
+
+	rqstp->rq_res.page_len = w;
+	while (w > 0) {
+		if (!svc_take_res_page(rqstp))
+			return 0;
+		w -= PAGE_SIZE;
+	}
+
+	n = nfsacl_encode(&rqstp->rq_res, base, inode,
+			  resp->acl_access,
+			  resp->mask & NFS_ACL, 0);
+	if (n > 0)
+		n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
+				  resp->acl_default,
+				  resp->mask & NFS_DFACL,
+				  NFS_ACL_DEFAULT);
+	if (n <= 0)
+		return 0;
+	return 1;
+}
+
+static int nfsaclsvc_encode_attrstatres(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd_attrstat *resp)
+{
+	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* ACCESS */
+static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_accessres *resp)
+{
+	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
+	*p++ = htonl(resp->access);
+	return xdr_ressize_check(rqstp, p);
+}
+
+/*
+ * XDR release functions
+ */
+static int nfsaclsvc_release_getacl(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclres *resp)
+{
+	fh_put(&resp->fh);
+	posix_acl_release(resp->acl_access);
+	posix_acl_release(resp->acl_default);
+	return 1;
+}
+
+static int nfsaclsvc_release_fhandle(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd_fhandle *resp)
+{
+	fh_put(&resp->fh);
+	return 1;
+}
+
+#define nfsaclsvc_decode_voidargs	NULL
+#define nfsaclsvc_encode_voidres	NULL
+#define nfsaclsvc_release_void		NULL
+#define nfsd3_fhandleargs	nfsd_fhandle
+#define nfsd3_attrstatres	nfsd_attrstat
+#define nfsd3_voidres		nfsd3_voidargs
+struct nfsd3_voidargs { int dummy; };
+
+#define PROC(name, argt, rest, relt, cache, respsize)	\
+ { (svc_procfunc) nfsacld_proc_##name,		\
+   (kxdrproc_t) nfsaclsvc_decode_##argt##args,	\
+   (kxdrproc_t) nfsaclsvc_encode_##rest##res,	\
+   (kxdrproc_t) nfsaclsvc_release_##relt,		\
+   sizeof(struct nfsd3_##argt##args),		\
+   sizeof(struct nfsd3_##rest##res),		\
+   0,						\
+   cache,					\
+   respsize,					\
+ }
+
+#define ST 1		/* status*/
+#define AT 21		/* attributes */
+#define pAT (1+AT)	/* post attributes - conditional */
+#define ACL (1+NFS_ACL_MAX_ENTRIES*3)  /* Access Control List */
+
+static struct svc_procedure		nfsd_acl_procedures2[] = {
+  PROC(null,	void,		void,		void,	  RC_NOCACHE, ST),
+  PROC(getacl,	getacl,		getacl,		getacl,	  RC_NOCACHE, ST+1+2*(1+ACL)),
+  PROC(setacl,	setacl,		attrstat,	fhandle,  RC_NOCACHE, ST+AT),
+  PROC(getattr, fhandle,	attrstat,	fhandle,  RC_NOCACHE, ST+AT),
+  PROC(access,	access,		access,		fhandle,  RC_NOCACHE, ST+AT+1),
+};
+
+struct svc_version	nfsd_acl_version2 = {
+		.vs_vers	= 2,
+		.vs_nproc	= 5,
+		.vs_proc	= nfsd_acl_procedures2,
+		.vs_dispatch	= nfsd_dispatch,
+		.vs_xdrsize	= NFS3_SVC_XDRSIZE,
+};
diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
new file mode 100644
index 0000000..64ba405
--- /dev/null
+++ b/fs/nfsd/nfs3acl.c
@@ -0,0 +1,267 @@
+/*
+ * linux/fs/nfsd/nfs3acl.c
+ *
+ * Process version 3 NFSACL requests.
+ *
+ * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
+ */
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfs3.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr3.h>
+#include <linux/posix_acl.h>
+#include <linux/nfsacl.h>
+
+#define RETURN_STATUS(st)	{ resp->status = (st); return (st); }
+
+/*
+ * NULL call.
+ */
+static int
+nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+{
+	return nfs_ok;
+}
+
+/*
+ * Get the Access and/or Default ACL of a file.
+ */
+static int nfsd3_proc_getacl(struct svc_rqst * rqstp,
+		struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp)
+{
+	svc_fh *fh;
+	struct posix_acl *acl;
+	int nfserr = 0;
+
+	fh = fh_copy(&resp->fh, &argp->fh);
+	if ((nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP)))
+		RETURN_STATUS(nfserr_inval);
+
+	if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
+		RETURN_STATUS(nfserr_inval);
+	resp->mask = argp->mask;
+
+	if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
+		acl = nfsd_get_posix_acl(fh, ACL_TYPE_ACCESS);
+		if (IS_ERR(acl)) {
+			int err = PTR_ERR(acl);
+
+			if (err == -ENODATA || err == -EOPNOTSUPP)
+				acl = NULL;
+			else {
+				nfserr = nfserrno(err);
+				goto fail;
+			}
+		}
+		if (acl == NULL) {
+			/* Solaris returns the inode's minimum ACL. */
+
+			struct inode *inode = fh->fh_dentry->d_inode;
+			acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
+		}
+		resp->acl_access = acl;
+	}
+	if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) {
+		/* Check how Solaris handles requests for the Default ACL
+		   of a non-directory! */
+
+		acl = nfsd_get_posix_acl(fh, ACL_TYPE_DEFAULT);
+		if (IS_ERR(acl)) {
+			int err = PTR_ERR(acl);
+
+			if (err == -ENODATA || err == -EOPNOTSUPP)
+				acl = NULL;
+			else {
+				nfserr = nfserrno(err);
+				goto fail;
+			}
+		}
+		resp->acl_default = acl;
+	}
+
+	/* resp->acl_{access,default} are released in nfs3svc_release_getacl. */
+	RETURN_STATUS(0);
+
+fail:
+	posix_acl_release(resp->acl_access);
+	posix_acl_release(resp->acl_default);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Set the Access and/or Default ACL of a file.
+ */
+static int nfsd3_proc_setacl(struct svc_rqst * rqstp,
+		struct nfsd3_setaclargs *argp,
+		struct nfsd3_attrstat *resp)
+{
+	svc_fh *fh;
+	int nfserr = 0;
+
+	fh = fh_copy(&resp->fh, &argp->fh);
+	nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
+
+	if (!nfserr) {
+		nfserr = nfserrno( nfsd_set_posix_acl(
+			fh, ACL_TYPE_ACCESS, argp->acl_access) );
+	}
+	if (!nfserr) {
+		nfserr = nfserrno( nfsd_set_posix_acl(
+			fh, ACL_TYPE_DEFAULT, argp->acl_default) );
+	}
+
+	/* argp->acl_{access,default} may have been allocated in
+	   nfs3svc_decode_setaclargs. */
+	posix_acl_release(argp->acl_access);
+	posix_acl_release(argp->acl_default);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * XDR decode functions
+ */
+static int nfs3svc_decode_getaclargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclargs *args)
+{
+	if (!(p = nfs3svc_decode_fh(p, &args->fh)))
+		return 0;
+	args->mask = ntohl(*p); p++;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+
+static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_setaclargs *args)
+{
+	struct kvec *head = rqstp->rq_arg.head;
+	unsigned int base;
+	int n;
+
+	if (!(p = nfs3svc_decode_fh(p, &args->fh)))
+		return 0;
+	args->mask = ntohl(*p++);
+	if (args->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) ||
+	    !xdr_argsize_check(rqstp, p))
+		return 0;
+
+	base = (char *)p - (char *)head->iov_base;
+	n = nfsacl_decode(&rqstp->rq_arg, base, NULL,
+			  (args->mask & NFS_ACL) ?
+			  &args->acl_access : NULL);
+	if (n > 0)
+		n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,
+				  (args->mask & NFS_DFACL) ?
+				  &args->acl_default : NULL);
+	return (n > 0);
+}
+
+/*
+ * XDR encode functions
+ */
+
+/* GETACL */
+static int nfs3svc_encode_getaclres(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclres *resp)
+{
+	struct dentry *dentry = resp->fh.fh_dentry;
+
+	p = nfs3svc_encode_post_op_attr(rqstp, p, &resp->fh);
+	if (resp->status == 0 && dentry && dentry->d_inode) {
+		struct inode *inode = dentry->d_inode;
+		int w = nfsacl_size(
+			(resp->mask & NFS_ACL)   ? resp->acl_access  : NULL,
+			(resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
+		struct kvec *head = rqstp->rq_res.head;
+		unsigned int base;
+		int n;
+
+		*p++ = htonl(resp->mask);
+		if (!xdr_ressize_check(rqstp, p))
+			return 0;
+		base = (char *)p - (char *)head->iov_base;
+
+		rqstp->rq_res.page_len = w;
+		while (w > 0) {
+			if (!svc_take_res_page(rqstp))
+				return 0;
+			w -= PAGE_SIZE;
+		}
+
+		n = nfsacl_encode(&rqstp->rq_res, base, inode,
+				  resp->acl_access,
+				  resp->mask & NFS_ACL, 0);
+		if (n > 0)
+			n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
+					  resp->acl_default,
+					  resp->mask & NFS_DFACL,
+					  NFS_ACL_DEFAULT);
+		if (n <= 0)
+			return 0;
+	} else
+		if (!xdr_ressize_check(rqstp, p))
+			return 0;
+
+	return 1;
+}
+
+/* SETACL */
+static int nfs3svc_encode_setaclres(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_attrstat *resp)
+{
+	p = nfs3svc_encode_post_op_attr(rqstp, p, &resp->fh);
+
+	return xdr_ressize_check(rqstp, p);
+}
+
+/*
+ * XDR release functions
+ */
+static int nfs3svc_release_getacl(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclres *resp)
+{
+	fh_put(&resp->fh);
+	posix_acl_release(resp->acl_access);
+	posix_acl_release(resp->acl_default);
+	return 1;
+}
+
+#define nfs3svc_decode_voidargs		NULL
+#define nfs3svc_release_void		NULL
+#define nfsd3_setaclres			nfsd3_attrstat
+#define nfsd3_voidres			nfsd3_voidargs
+struct nfsd3_voidargs { int dummy; };
+
+#define PROC(name, argt, rest, relt, cache, respsize)	\
+ { (svc_procfunc) nfsd3_proc_##name,		\
+   (kxdrproc_t) nfs3svc_decode_##argt##args,	\
+   (kxdrproc_t) nfs3svc_encode_##rest##res,	\
+   (kxdrproc_t) nfs3svc_release_##relt,		\
+   sizeof(struct nfsd3_##argt##args),		\
+   sizeof(struct nfsd3_##rest##res),		\
+   0,						\
+   cache,					\
+   respsize,					\
+ }
+
+#define ST 1		/* status*/
+#define AT 21		/* attributes */
+#define pAT (1+AT)	/* post attributes - conditional */
+#define ACL (1+NFS_ACL_MAX_ENTRIES*3)  /* Access Control List */
+
+static struct svc_procedure		nfsd_acl_procedures3[] = {
+  PROC(null,	void,		void,		void,	  RC_NOCACHE, ST),
+  PROC(getacl,	getacl,		getacl,		getacl,	  RC_NOCACHE, ST+1+2*(1+ACL)),
+  PROC(setacl,	setacl,		setacl,		fhandle,  RC_NOCACHE, ST+pAT),
+};
+
+struct svc_version	nfsd_acl_version3 = {
+		.vs_vers	= 3,
+		.vs_nproc	= 3,
+		.vs_proc	= nfsd_acl_procedures3,
+		.vs_dispatch	= nfsd_dispatch,
+		.vs_xdrsize	= NFS3_SVC_XDRSIZE,
+};
+
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 11f8068..e0e134d 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -71,6 +71,12 @@ decode_fh(u32 *p, struct svc_fh *fhp)
 	return p + XDR_QUADLEN(size);
 }
 
+/* Helper function for NFSv3 ACL code */
+u32 *nfs3svc_decode_fh(u32 *p, struct svc_fh *fhp)
+{
+	return decode_fh(p, fhp);
+}
+
 static inline u32 *
 encode_fh(u32 *p, struct svc_fh *fhp)
 {
@@ -233,6 +239,13 @@ encode_post_op_attr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
 	return p;
 }
 
+/* Helper for NFSv3 ACLs */
+u32 *
+nfs3svc_encode_post_op_attr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
+{
+	return encode_post_op_attr(rqstp, p, fhp);
+}
+
 /*
  * Enocde weak cache consistency data
  */
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 1a55dfc..634465e 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -430,7 +430,7 @@ nfsd4_probe_callback(struct nfs4_client *clp)
 	clnt = rpc_create_client(xprt, hostname, program, 1, RPC_AUTH_UNIX);
 	if (IS_ERR(clnt)) {
 		dprintk("NFSD: couldn't create callback client\n");
-		goto out_xprt;
+		goto out_err;
 	}
 	clnt->cl_intr = 0;
 	clnt->cl_softrtry = 1;
@@ -465,8 +465,6 @@ out_rpciod:
 out_clnt:
 	rpc_shutdown_client(clnt);
 	goto out_err;
-out_xprt:
-	xprt_destroy(xprt);
 out_err:
 	dprintk("NFSD: warning: no callback path to client %.*s\n",
 		(int)clp->cl_name.len, clp->cl_name.data);
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 757f9d2..0aa1b96 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -591,6 +591,7 @@ nfserrno (int errno)
 		{ nfserr_dropit, -ENOMEM },
 		{ nfserr_badname, -ESRCH },
 		{ nfserr_io, -ETXTBSY },
+		{ nfserr_notsupp, -EOPNOTSUPP },
 		{ -1, -EIO }
 	};
 	int	i;
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 02ded7c..904df60 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -31,6 +31,7 @@
 #include <linux/nfsd/stats.h>
 #include <linux/nfsd/cache.h>
 #include <linux/lockd/bind.h>
+#include <linux/nfsacl.h>
 
 #define NFSDDBG_FACILITY	NFSDDBG_SVC
 
@@ -362,6 +363,32 @@ nfsd_dispatch(struct svc_rqst *rqstp, u32 *statp)
 	return 1;
 }
 
+#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
+static struct svc_stat	nfsd_acl_svcstats;
+static struct svc_version *	nfsd_acl_version[] = {
+	[2] = &nfsd_acl_version2,
+	[3] = &nfsd_acl_version3,
+};
+
+#define NFSD_ACL_NRVERS		(sizeof(nfsd_acl_version)/sizeof(nfsd_acl_version[0]))
+static struct svc_program	nfsd_acl_program = {
+	.pg_prog		= NFS_ACL_PROGRAM,
+	.pg_nvers		= NFSD_ACL_NRVERS,
+	.pg_vers		= nfsd_acl_version,
+	.pg_name		= "nfsd",
+	.pg_class		= "nfsd",
+	.pg_stats		= &nfsd_acl_svcstats,
+};
+
+static struct svc_stat	nfsd_acl_svcstats = {
+	.program	= &nfsd_acl_program,
+};
+
+#define nfsd_acl_program_p	&nfsd_acl_program
+#else
+#define nfsd_acl_program_p	NULL
+#endif /* defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) */
+
 extern struct svc_version nfsd_version2, nfsd_version3, nfsd_version4;
 
 static struct svc_version *	nfsd_version[] = {
@@ -376,6 +403,7 @@ static struct svc_version *	nfsd_version[] = {
 
 #define NFSD_NRVERS		(sizeof(nfsd_version)/sizeof(nfsd_version[0]))
 struct svc_program		nfsd_program = {
+	.pg_next		= nfsd_acl_program_p,
 	.pg_prog		= NFS_PROGRAM,		/* program number */
 	.pg_nvers		= NFSD_NRVERS,		/* nr of entries in nfsd_version */
 	.pg_vers		= nfsd_version,		/* version table */
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index 948b082..b45999f 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -49,6 +49,12 @@ decode_fh(u32 *p, struct svc_fh *fhp)
 	return p + (NFS_FHSIZE >> 2);
 }
 
+/* Helper function for NFSv2 ACL code */
+u32 *nfs2svc_decode_fh(u32 *p, struct svc_fh *fhp)
+{
+	return decode_fh(p, fhp);
+}
+
 static inline u32 *
 encode_fh(u32 *p, struct svc_fh *fhp)
 {
@@ -190,6 +196,11 @@ encode_fattr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
 	return p;
 }
 
+/* Helper function for NFSv2 ACL code */
+u32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
+{
+	return encode_fattr(rqstp, p, fhp);
+}
 
 /*
  * XDR decode functions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index e3e9d21..ae3940d 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -46,8 +46,9 @@
 #include <linux/nfsd/nfsfh.h>
 #include <linux/quotaops.h>
 #include <linux/dnotify.h>
-#ifdef CONFIG_NFSD_V4
+#include <linux/xattr_acl.h>
 #include <linux/posix_acl.h>
+#ifdef CONFIG_NFSD_V4
 #include <linux/posix_acl_xattr.h>
 #include <linux/xattr_acl.h>
 #include <linux/xattr.h>
@@ -1857,3 +1858,107 @@ nfsd_racache_init(int cache_size)
 	nfsdstats.ra_size = cache_size;
 	return 0;
 }
+
+#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
+struct posix_acl *
+nfsd_get_posix_acl(struct svc_fh *fhp, int type)
+{
+	struct inode *inode = fhp->fh_dentry->d_inode;
+	char *name;
+	void *value = NULL;
+	ssize_t size;
+	struct posix_acl *acl;
+
+	if (!IS_POSIXACL(inode) || !inode->i_op || !inode->i_op->getxattr)
+		return ERR_PTR(-EOPNOTSUPP);
+	switch(type) {
+		case ACL_TYPE_ACCESS:
+			name = XATTR_NAME_ACL_ACCESS;
+			break;
+		case ACL_TYPE_DEFAULT:
+			name = XATTR_NAME_ACL_DEFAULT;
+			break;
+		default:
+			return ERR_PTR(-EOPNOTSUPP);
+	}
+
+	size = inode->i_op->getxattr(fhp->fh_dentry, name, NULL, 0);
+
+	if (size < 0) {
+		acl = ERR_PTR(size);
+		goto getout;
+	} else if (size > 0) {
+		value = kmalloc(size, GFP_KERNEL);
+		if (!value) {
+			acl = ERR_PTR(-ENOMEM);
+			goto getout;
+		}
+		size = inode->i_op->getxattr(fhp->fh_dentry, name, value, size);
+		if (size < 0) {
+			acl = ERR_PTR(size);
+			goto getout;
+		}
+	}
+	acl = posix_acl_from_xattr(value, size);
+
+getout:
+	kfree(value);
+	return acl;
+}
+
+int
+nfsd_set_posix_acl(struct svc_fh *fhp, int type, struct posix_acl *acl)
+{
+	struct inode *inode = fhp->fh_dentry->d_inode;
+	char *name;
+	void *value = NULL;
+	size_t size;
+	int error;
+
+	if (!IS_POSIXACL(inode) || !inode->i_op ||
+	    !inode->i_op->setxattr || !inode->i_op->removexattr)
+		return -EOPNOTSUPP;
+	switch(type) {
+		case ACL_TYPE_ACCESS:
+			name = XATTR_NAME_ACL_ACCESS;
+			break;
+		case ACL_TYPE_DEFAULT:
+			name = XATTR_NAME_ACL_DEFAULT;
+			break;
+		default:
+			return -EOPNOTSUPP;
+	}
+
+	if (acl && acl->a_count) {
+		size = xattr_acl_size(acl->a_count);
+		value = kmalloc(size, GFP_KERNEL);
+		if (!value)
+			return -ENOMEM;
+		size = posix_acl_to_xattr(acl, value, size);
+		if (size < 0) {
+			error = size;
+			goto getout;
+		}
+	} else
+		size = 0;
+
+	if (!fhp->fh_locked)
+		fh_lock(fhp);  /* unlocking is done automatically */
+	if (size)
+		error = inode->i_op->setxattr(fhp->fh_dentry, name,
+					      value, size, 0);
+	else {
+		if (!S_ISDIR(inode->i_mode) && type == ACL_TYPE_DEFAULT)
+			error = 0;
+		else {
+			error = inode->i_op->removexattr(fhp->fh_dentry, name);
+			if (error == -ENODATA)
+				error = 0;
+		}
+	}
+
+getout:
+	kfree(value);
+	return error;
+}
+#endif  /* defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) */
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index a60a3b3..63a9fbf 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -219,6 +219,19 @@ static struct file_operations fragmentation_file_operations = {
 	.release	= seq_release,
 };
 
+extern struct seq_operations zoneinfo_op;
+static int zoneinfo_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &zoneinfo_op);
+}
+
+static struct file_operations proc_zoneinfo_file_operations = {
+	.open		= zoneinfo_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
 static int version_read_proc(char *page, char **start, off_t off,
 				 int count, int *eof, void *data)
 {
@@ -589,6 +602,7 @@ void __init proc_misc_init(void)
 	create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations);
 	create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
 	create_seq_entry("vmstat",S_IRUGO, &proc_vmstat_file_operations);
+	create_seq_entry("zoneinfo",S_IRUGO, &proc_zoneinfo_file_operations);
 	create_seq_entry("diskstats", 0, &proc_diskstats_operations);
 #ifdef CONFIG_MODULES
 	create_seq_entry("modules", 0, &proc_modules_operations);
diff --git a/fs/super.c b/fs/super.c
index 3a1b8ca..573bcc8 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -835,6 +835,7 @@ do_kern_mount(const char *fstype, int flags, const char *name, void *data)
 	mnt->mnt_parent = mnt;
 	mnt->mnt_namespace = current->namespace;
 	up_write(&sb->s_umount);
+	free_secdata(secdata);
 	put_filesystem(type);
 	return mnt;
 out_sb:
diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
index d4aaa88..78899ee 100644
--- a/fs/sysfs/bin.c
+++ b/fs/sysfs/bin.c
@@ -25,7 +25,7 @@ fill_read(struct dentry *dentry, char *buffer, loff_t off, size_t count)
 	struct kobject * kobj = to_kobj(dentry->d_parent);
 
 	if (!attr->read)
-		return -EINVAL;
+		return -EIO;
 
 	return attr->read(kobj, buffer, off, count);
 }
@@ -71,7 +71,7 @@ flush_write(struct dentry *dentry, char *buffer, loff_t offset, size_t count)
 	struct kobject *kobj = to_kobj(dentry->d_parent);
 
 	if (!attr->write)
-		return -EINVAL;
+		return -EIO;
 
 	return attr->write(kobj, buffer, offset, count);
 }
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index fe19821..37d7a68 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -101,18 +101,19 @@ static int create_dir(struct kobject * k, struct dentry * p,
 	down(&p->d_inode->i_sem);
 	*d = sysfs_get_dentry(p,n);
 	if (!IS_ERR(*d)) {
-		error = sysfs_create(*d, mode, init_dir);
+		error = sysfs_make_dirent(p->d_fsdata, *d, k, mode, SYSFS_DIR);
 		if (!error) {
-			error = sysfs_make_dirent(p->d_fsdata, *d, k, mode,
-						SYSFS_DIR);
+			error = sysfs_create(*d, mode, init_dir);
 			if (!error) {
 				p->d_inode->i_nlink++;
 				(*d)->d_op = &sysfs_dentry_ops;
 				d_rehash(*d);
 			}
 		}
-		if (error && (error != -EEXIST))
+		if (error && (error != -EEXIST)) {
+			sysfs_put((*d)->d_fsdata);
 			d_drop(*d);
+		}
 		dput(*d);
 	} else
 		error = PTR_ERR(*d);
@@ -171,17 +172,19 @@ static int sysfs_attach_attr(struct sysfs_dirent * sd, struct dentry * dentry)
                 init = init_file;
         }
 
+	dentry->d_fsdata = sysfs_get(sd);
+	sd->s_dentry = dentry;
 	error = sysfs_create(dentry, (attr->mode & S_IALLUGO) | S_IFREG, init);
-	if (error)
+	if (error) {
+		sysfs_put(sd);
 		return error;
+	}
 
         if (bin_attr) {
 		dentry->d_inode->i_size = bin_attr->size;
 		dentry->d_inode->i_fop = &bin_fops;
 	}
 	dentry->d_op = &sysfs_dentry_ops;
-	dentry->d_fsdata = sysfs_get(sd);
-	sd->s_dentry = dentry;
 	d_rehash(dentry);
 
 	return 0;
@@ -191,13 +194,15 @@ static int sysfs_attach_link(struct sysfs_dirent * sd, struct dentry * dentry)
 {
 	int err = 0;
 
+	dentry->d_fsdata = sysfs_get(sd);
+	sd->s_dentry = dentry;
 	err = sysfs_create(dentry, S_IFLNK|S_IRWXUGO, init_symlink);
 	if (!err) {
 		dentry->d_op = &sysfs_dentry_ops;
-		dentry->d_fsdata = sysfs_get(sd);
-		sd->s_dentry = dentry;
 		d_rehash(dentry);
-	}
+	} else
+		sysfs_put(sd);
+
 	return err;
 }
 
@@ -228,6 +233,7 @@ static struct dentry * sysfs_lookup(struct inode *dir, struct dentry *dentry,
 
 struct inode_operations sysfs_dir_inode_operations = {
 	.lookup		= sysfs_lookup,
+	.setattr	= sysfs_setattr,
 };
 
 static void remove_dir(struct dentry * d)
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 3642080..849aac1 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -23,7 +23,7 @@ subsys_attr_show(struct kobject * kobj, struct attribute * attr, char * page)
 {
 	struct subsystem * s = to_subsys(kobj);
 	struct subsys_attribute * sattr = to_sattr(attr);
-	ssize_t ret = 0;
+	ssize_t ret = -EIO;
 
 	if (sattr->show)
 		ret = sattr->show(s,page);
@@ -36,7 +36,7 @@ subsys_attr_store(struct kobject * kobj, struct attribute * attr,
 {
 	struct subsystem * s = to_subsys(kobj);
 	struct subsys_attribute * sattr = to_sattr(attr);
-	ssize_t ret = 0;
+	ssize_t ret = -EIO;
 
 	if (sattr->store)
 		ret = sattr->store(s,page,count);
@@ -182,7 +182,7 @@ fill_write_buffer(struct sysfs_buffer * buffer, const char __user * buf, size_t
 		return -ENOMEM;
 
 	if (count >= PAGE_SIZE)
-		count = PAGE_SIZE - 1;
+		count = PAGE_SIZE;
 	error = copy_from_user(buffer->page,buf,count);
 	buffer->needs_read_fill = 1;
 	return error ? -EFAULT : count;
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index aff7b2d..565cac1 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -26,18 +26,107 @@ static struct backing_dev_info sysfs_backing_dev_info = {
 	.capabilities	= BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_WRITEBACK,
 };
 
-struct inode * sysfs_new_inode(mode_t mode)
+static struct inode_operations sysfs_inode_operations ={
+	.setattr	= sysfs_setattr,
+};
+
+int sysfs_setattr(struct dentry * dentry, struct iattr * iattr)
+{
+	struct inode * inode = dentry->d_inode;
+	struct sysfs_dirent * sd = dentry->d_fsdata;
+	struct iattr * sd_iattr;
+	unsigned int ia_valid = iattr->ia_valid;
+	int error;
+
+	if (!sd)
+		return -EINVAL;
+
+	sd_iattr = sd->s_iattr;
+
+	error = inode_change_ok(inode, iattr);
+	if (error)
+		return error;
+
+	error = inode_setattr(inode, iattr);
+	if (error)
+		return error;
+
+	if (!sd_iattr) {
+		/* setting attributes for the first time, allocate now */
+		sd_iattr = kmalloc(sizeof(struct iattr), GFP_KERNEL);
+		if (!sd_iattr)
+			return -ENOMEM;
+		/* assign default attributes */
+		memset(sd_iattr, 0, sizeof(struct iattr));
+		sd_iattr->ia_mode = sd->s_mode;
+		sd_iattr->ia_uid = 0;
+		sd_iattr->ia_gid = 0;
+		sd_iattr->ia_atime = sd_iattr->ia_mtime = sd_iattr->ia_ctime = CURRENT_TIME;
+		sd->s_iattr = sd_iattr;
+	}
+
+	/* attributes were changed atleast once in past */
+
+	if (ia_valid & ATTR_UID)
+		sd_iattr->ia_uid = iattr->ia_uid;
+	if (ia_valid & ATTR_GID)
+		sd_iattr->ia_gid = iattr->ia_gid;
+	if (ia_valid & ATTR_ATIME)
+		sd_iattr->ia_atime = timespec_trunc(iattr->ia_atime,
+						inode->i_sb->s_time_gran);
+	if (ia_valid & ATTR_MTIME)
+		sd_iattr->ia_mtime = timespec_trunc(iattr->ia_mtime,
+						inode->i_sb->s_time_gran);
+	if (ia_valid & ATTR_CTIME)
+		sd_iattr->ia_ctime = timespec_trunc(iattr->ia_ctime,
+						inode->i_sb->s_time_gran);
+	if (ia_valid & ATTR_MODE) {
+		umode_t mode = iattr->ia_mode;
+
+		if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
+			mode &= ~S_ISGID;
+		sd_iattr->ia_mode = mode;
+	}
+
+	return error;
+}
+
+static inline void set_default_inode_attr(struct inode * inode, mode_t mode)
+{
+	inode->i_mode = mode;
+	inode->i_uid = 0;
+	inode->i_gid = 0;
+	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+}
+
+static inline void set_inode_attr(struct inode * inode, struct iattr * iattr)
+{
+	inode->i_mode = iattr->ia_mode;
+	inode->i_uid = iattr->ia_uid;
+	inode->i_gid = iattr->ia_gid;
+	inode->i_atime = iattr->ia_atime;
+	inode->i_mtime = iattr->ia_mtime;
+	inode->i_ctime = iattr->ia_ctime;
+}
+
+struct inode * sysfs_new_inode(mode_t mode, struct sysfs_dirent * sd)
 {
 	struct inode * inode = new_inode(sysfs_sb);
 	if (inode) {
-		inode->i_mode = mode;
-		inode->i_uid = 0;
-		inode->i_gid = 0;
 		inode->i_blksize = PAGE_CACHE_SIZE;
 		inode->i_blocks = 0;
-		inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
 		inode->i_mapping->a_ops = &sysfs_aops;
 		inode->i_mapping->backing_dev_info = &sysfs_backing_dev_info;
+		inode->i_op = &sysfs_inode_operations;
+
+		if (sd->s_iattr) {
+			/* sysfs_dirent has non-default attributes
+			 * get them for the new inode from persistent copy
+			 * in sysfs_dirent
+			 */
+			set_inode_attr(inode, sd->s_iattr);
+		} else
+			set_default_inode_attr(inode, mode);
 	}
 	return inode;
 }
@@ -48,7 +137,8 @@ int sysfs_create(struct dentry * dentry, int mode, int (*init)(struct inode *))
 	struct inode * inode = NULL;
 	if (dentry) {
 		if (!dentry->d_inode) {
-			if ((inode = sysfs_new_inode(mode))) {
+			struct sysfs_dirent * sd = dentry->d_fsdata;
+			if ((inode = sysfs_new_inode(mode, sd))) {
 				if (dentry->d_parent && dentry->d_parent->d_inode) {
 					struct inode *p_inode = dentry->d_parent->d_inode;
 					p_inode->i_mtime = p_inode->i_ctime = CURRENT_TIME;
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index 5c805bb..f1117e8 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -28,6 +28,7 @@ static struct sysfs_dirent sysfs_root = {
 	.s_children	= LIST_HEAD_INIT(sysfs_root.s_children),
 	.s_element	= NULL,
 	.s_type		= SYSFS_ROOT,
+	.s_iattr	= NULL,
 };
 
 static int sysfs_fill_super(struct super_block *sb, void *data, int silent)
@@ -42,7 +43,8 @@ static int sysfs_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_time_gran = 1;
 	sysfs_sb = sb;
 
-	inode = sysfs_new_inode(S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO);
+	inode = sysfs_new_inode(S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO,
+				 &sysfs_root);
 	if (inode) {
 		inode->i_op = &sysfs_dir_inode_operations;
 		inode->i_fop = &sysfs_dir_operations;
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index dfdf701..fae57c8 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -43,7 +43,7 @@ static void fill_object_path(struct kobject * kobj, char * buffer, int length)
 	}
 }
 
-static int sysfs_add_link(struct dentry * parent, char * name, struct kobject * target)
+static int sysfs_add_link(struct dentry * parent, const char * name, struct kobject * target)
 {
 	struct sysfs_dirent * parent_sd = parent->d_fsdata;
 	struct sysfs_symlink * sl;
@@ -79,7 +79,7 @@ exit1:
  *	@target:	object we're pointing to.
  *	@name:		name of the symlink.
  */
-int sysfs_create_link(struct kobject * kobj, struct kobject * target, char * name)
+int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char * name)
 {
 	struct dentry * dentry = kobj->dentry;
 	int error = 0;
@@ -99,13 +99,13 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, char * nam
  *	@name:	name of the symlink to remove.
  */
 
-void sysfs_remove_link(struct kobject * kobj, char * name)
+void sysfs_remove_link(struct kobject * kobj, const char * name)
 {
 	sysfs_hash_and_remove(kobj->dentry,name);
 }
 
 static int sysfs_get_target_path(struct kobject * kobj, struct kobject * target,
-				   char *path)
+				 char *path)
 {
 	char * s;
 	int depth, size;
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index a8a24a0..29da6f5 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -2,7 +2,7 @@
 extern struct vfsmount * sysfs_mount;
 extern kmem_cache_t *sysfs_dir_cachep;
 
-extern struct inode * sysfs_new_inode(mode_t mode);
+extern struct inode * sysfs_new_inode(mode_t mode, struct sysfs_dirent *);
 extern int sysfs_create(struct dentry *, int mode, int (*init)(struct inode *));
 
 extern int sysfs_make_dirent(struct sysfs_dirent *, struct dentry *, void *,
@@ -17,6 +17,7 @@ extern void sysfs_remove_subdir(struct dentry *);
 
 extern const unsigned char * sysfs_get_name(struct sysfs_dirent *sd);
 extern void sysfs_drop_dentry(struct sysfs_dirent *sd, struct dentry *parent);
+extern int sysfs_setattr(struct dentry *dentry, struct iattr *iattr);
 
 extern struct rw_semaphore sysfs_rename_sem;
 extern struct super_block * sysfs_sb;
@@ -75,6 +76,7 @@ static inline void release_sysfs_dirent(struct sysfs_dirent * sd)
 		kobject_put(sl->target_kobj);
 		kfree(sl);
 	}
+	kfree(sd->s_iattr);
 	kmem_cache_free(sysfs_dir_cachep, sd);
 }
 
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 997963e5..c60e694 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -61,12 +61,13 @@
  * File wide globals
  */
 
-STATIC kmem_cache_t *pagebuf_cache;
+STATIC kmem_cache_t *pagebuf_zone;
 STATIC kmem_shaker_t pagebuf_shake;
-STATIC int pagebuf_daemon_wakeup(int, unsigned int);
+STATIC int xfsbufd_wakeup(int, unsigned int);
 STATIC void pagebuf_delwri_queue(xfs_buf_t *, int);
-STATIC struct workqueue_struct *pagebuf_logio_workqueue;
-STATIC struct workqueue_struct *pagebuf_dataio_workqueue;
+
+STATIC struct workqueue_struct *xfslogd_workqueue;
+STATIC struct workqueue_struct *xfsdatad_workqueue;
 
 /*
  * Pagebuf debugging
@@ -123,9 +124,9 @@ ktrace_t *pagebuf_trace_buf;
 
 
 #define pagebuf_allocate(flags) \
-	kmem_zone_alloc(pagebuf_cache, pb_to_km(flags))
+	kmem_zone_alloc(pagebuf_zone, pb_to_km(flags))
 #define pagebuf_deallocate(pb) \
-	kmem_zone_free(pagebuf_cache, (pb));
+	kmem_zone_free(pagebuf_zone, (pb));
 
 /*
  * Page Region interfaces.
@@ -425,7 +426,7 @@ _pagebuf_lookup_pages(
 					__FUNCTION__, gfp_mask);
 
 			XFS_STATS_INC(pb_page_retries);
-			pagebuf_daemon_wakeup(0, gfp_mask);
+			xfsbufd_wakeup(0, gfp_mask);
 			blk_congestion_wait(WRITE, HZ/50);
 			goto retry;
 		}
@@ -1136,8 +1137,8 @@ pagebuf_iodone(
 	if ((pb->pb_iodone) || (pb->pb_flags & PBF_ASYNC)) {
 		if (schedule) {
 			INIT_WORK(&pb->pb_iodone_work, pagebuf_iodone_work, pb);
-			queue_work(dataio ? pagebuf_dataio_workqueue :
-				pagebuf_logio_workqueue, &pb->pb_iodone_work);
+			queue_work(dataio ? xfsdatad_workqueue :
+				xfslogd_workqueue, &pb->pb_iodone_work);
 		} else {
 			pagebuf_iodone_work(pb);
 		}
@@ -1562,16 +1563,6 @@ xfs_free_buftarg(
 	kmem_free(btp, sizeof(*btp));
 }
 
-void
-xfs_incore_relse(
-	xfs_buftarg_t		*btp,
-	int			delwri_only,
-	int			wait)
-{
-	invalidate_bdev(btp->pbr_bdev, 1);
-	truncate_inode_pages(btp->pbr_mapping, 0LL);
-}
-
 STATIC int
 xfs_setsize_buftarg_flags(
 	xfs_buftarg_t		*btp,
@@ -1742,27 +1733,27 @@ pagebuf_runall_queues(
 }
 
 /* Defines for pagebuf daemon */
-STATIC DECLARE_COMPLETION(pagebuf_daemon_done);
-STATIC struct task_struct *pagebuf_daemon_task;
-STATIC int pagebuf_daemon_active;
-STATIC int force_flush;
-STATIC int force_sleep;
+STATIC DECLARE_COMPLETION(xfsbufd_done);
+STATIC struct task_struct *xfsbufd_task;
+STATIC int xfsbufd_active;
+STATIC int xfsbufd_force_flush;
+STATIC int xfsbufd_force_sleep;
 
 STATIC int
-pagebuf_daemon_wakeup(
+xfsbufd_wakeup(
 	int			priority,
 	unsigned int		mask)
 {
-	if (force_sleep)
+	if (xfsbufd_force_sleep)
 		return 0;
-	force_flush = 1;
+	xfsbufd_force_flush = 1;
 	barrier();
-	wake_up_process(pagebuf_daemon_task);
+	wake_up_process(xfsbufd_task);
 	return 0;
 }
 
 STATIC int
-pagebuf_daemon(
+xfsbufd(
 	void			*data)
 {
 	struct list_head	tmp;
@@ -1774,17 +1765,17 @@ pagebuf_daemon(
 	daemonize("xfsbufd");
 	current->flags |= PF_MEMALLOC;
 
-	pagebuf_daemon_task = current;
-	pagebuf_daemon_active = 1;
+	xfsbufd_task = current;
+	xfsbufd_active = 1;
 	barrier();
 
 	INIT_LIST_HEAD(&tmp);
 	do {
 		if (unlikely(current->flags & PF_FREEZE)) {
-			force_sleep = 1;
+			xfsbufd_force_sleep = 1;
 			refrigerator(PF_FREEZE);
 		} else {
-			force_sleep = 0;
+			xfsbufd_force_sleep = 0;
 		}
 
 		set_current_state(TASK_INTERRUPTIBLE);
@@ -1797,7 +1788,7 @@ pagebuf_daemon(
 			ASSERT(pb->pb_flags & PBF_DELWRI);
 
 			if (!pagebuf_ispin(pb) && !pagebuf_cond_lock(pb)) {
-				if (!force_flush &&
+				if (!xfsbufd_force_flush &&
 				    time_before(jiffies,
 						pb->pb_queuetime + age)) {
 					pagebuf_unlock(pb);
@@ -1824,10 +1815,10 @@ pagebuf_daemon(
 		if (as_list_len > 0)
 			purge_addresses();
 
-		force_flush = 0;
-	} while (pagebuf_daemon_active);
+		xfsbufd_force_flush = 0;
+	} while (xfsbufd_active);
 
-	complete_and_exit(&pagebuf_daemon_done, 0);
+	complete_and_exit(&xfsbufd_done, 0);
 }
 
 /*
@@ -1844,8 +1835,8 @@ xfs_flush_buftarg(
 	xfs_buf_t		*pb, *n;
 	int			pincount = 0;
 
-	pagebuf_runall_queues(pagebuf_dataio_workqueue);
-	pagebuf_runall_queues(pagebuf_logio_workqueue);
+	pagebuf_runall_queues(xfsdatad_workqueue);
+	pagebuf_runall_queues(xfslogd_workqueue);
 
 	INIT_LIST_HEAD(&tmp);
 	spin_lock(&pbd_delwrite_lock);
@@ -1898,43 +1889,43 @@ xfs_flush_buftarg(
 }
 
 STATIC int
-pagebuf_daemon_start(void)
+xfs_buf_daemons_start(void)
 {
-	int		rval;
+	int		error = -ENOMEM;
 
-	pagebuf_logio_workqueue = create_workqueue("xfslogd");
-	if (!pagebuf_logio_workqueue)
-		return -ENOMEM;
+	xfslogd_workqueue = create_workqueue("xfslogd");
+	if (!xfslogd_workqueue)
+		goto out;
 
-	pagebuf_dataio_workqueue = create_workqueue("xfsdatad");
-	if (!pagebuf_dataio_workqueue) {
-		destroy_workqueue(pagebuf_logio_workqueue);
-		return -ENOMEM;
-	}
+	xfsdatad_workqueue = create_workqueue("xfsdatad");
+	if (!xfsdatad_workqueue)
+		goto out_destroy_xfslogd_workqueue;
 
-	rval = kernel_thread(pagebuf_daemon, NULL, CLONE_FS|CLONE_FILES);
-	if (rval < 0) {
-		destroy_workqueue(pagebuf_logio_workqueue);
-		destroy_workqueue(pagebuf_dataio_workqueue);
-	}
+	error = kernel_thread(xfsbufd, NULL, CLONE_FS|CLONE_FILES);
+	if (error < 0)
+		goto out_destroy_xfsdatad_workqueue;
+	return 0;
 
-	return rval;
+ out_destroy_xfsdatad_workqueue:
+	destroy_workqueue(xfsdatad_workqueue);
+ out_destroy_xfslogd_workqueue:
+	destroy_workqueue(xfslogd_workqueue);
+ out:
+	return error;
 }
 
 /*
- * pagebuf_daemon_stop
- *
  * Note: do not mark as __exit, it is called from pagebuf_terminate.
  */
 STATIC void
-pagebuf_daemon_stop(void)
+xfs_buf_daemons_stop(void)
 {
-	pagebuf_daemon_active = 0;
+	xfsbufd_active = 0;
 	barrier();
-	wait_for_completion(&pagebuf_daemon_done);
+	wait_for_completion(&xfsbufd_done);
 
-	destroy_workqueue(pagebuf_logio_workqueue);
-	destroy_workqueue(pagebuf_dataio_workqueue);
+	destroy_workqueue(xfslogd_workqueue);
+	destroy_workqueue(xfsdatad_workqueue);
 }
 
 /*
@@ -1944,27 +1935,37 @@ pagebuf_daemon_stop(void)
 int __init
 pagebuf_init(void)
 {
-	pagebuf_cache = kmem_cache_create("xfs_buf_t", sizeof(xfs_buf_t), 0,
-			SLAB_HWCACHE_ALIGN, NULL, NULL);
-	if (pagebuf_cache == NULL) {
-		printk("XFS: couldn't init xfs_buf_t cache\n");
-		pagebuf_terminate();
-		return -ENOMEM;
-	}
+	int		error = -ENOMEM;
+
+	pagebuf_zone = kmem_zone_init(sizeof(xfs_buf_t), "xfs_buf");
+	if (!pagebuf_zone)
+		goto out;
 
 #ifdef PAGEBUF_TRACE
 	pagebuf_trace_buf = ktrace_alloc(PAGEBUF_TRACE_SIZE, KM_SLEEP);
 #endif
 
-	pagebuf_daemon_start();
+	error = xfs_buf_daemons_start();
+	if (error)
+		goto out_free_buf_zone;
 
-	pagebuf_shake = kmem_shake_register(pagebuf_daemon_wakeup);
-	if (pagebuf_shake == NULL) {
-		pagebuf_terminate();
-		return -ENOMEM;
+	pagebuf_shake = kmem_shake_register(xfsbufd_wakeup);
+	if (!pagebuf_shake) {
+		error = -ENOMEM;
+		goto out_stop_daemons;
 	}
 
 	return 0;
+
+ out_stop_daemons:
+	xfs_buf_daemons_stop();
+ out_free_buf_zone:
+#ifdef PAGEBUF_TRACE
+	ktrace_free(pagebuf_trace_buf);
+#endif
+	kmem_zone_destroy(pagebuf_zone);
+ out:
+	return error;
 }
 
 
@@ -1976,12 +1977,12 @@ pagebuf_init(void)
 void
 pagebuf_terminate(void)
 {
-	pagebuf_daemon_stop();
+	xfs_buf_daemons_stop();
 
 #ifdef PAGEBUF_TRACE
 	ktrace_free(pagebuf_trace_buf);
 #endif
 
-	kmem_zone_destroy(pagebuf_cache);
+	kmem_zone_destroy(pagebuf_zone);
 	kmem_shake_deregister(pagebuf_shake);
 }
diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index 74deed8..3f8f69a 100644
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -576,7 +576,6 @@ extern xfs_buftarg_t *xfs_alloc_buftarg(struct block_device *, int);
 extern void xfs_free_buftarg(xfs_buftarg_t *, int);
 extern void xfs_wait_buftarg(xfs_buftarg_t *);
 extern int xfs_setsize_buftarg(xfs_buftarg_t *, unsigned int, unsigned int);
-extern void xfs_incore_relse(xfs_buftarg_t *, int, int);
 extern int xfs_flush_buftarg(xfs_buftarg_t *, int);
 
 #define xfs_getsize_buftarg(buftarg) \
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 24fa3b1..f1ce432 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -57,7 +57,9 @@
 #include <linux/smp_lock.h>
 
 static struct vm_operations_struct linvfs_file_vm_ops;
-
+#ifdef CONFIG_XFS_DMAPI
+static struct vm_operations_struct linvfs_dmapi_file_vm_ops;
+#endif
 
 STATIC inline ssize_t
 __linvfs_read(
@@ -388,6 +390,14 @@ done:
 	return -error;
 }
 
+#ifdef CONFIG_XFS_DMAPI
+STATIC void
+linvfs_mmap_close(
+	struct vm_area_struct	*vma)
+{
+	xfs_dm_mm_put(vma);
+}
+#endif /* CONFIG_XFS_DMAPI */
 
 STATIC int
 linvfs_file_mmap(
@@ -399,16 +409,19 @@ linvfs_file_mmap(
 	vattr_t		va = { .va_mask = XFS_AT_UPDATIME };
 	int		error;
 
+	vma->vm_ops = &linvfs_file_vm_ops;
+
 	if (vp->v_vfsp->vfs_flag & VFS_DMI) {
 		xfs_mount_t	*mp = XFS_VFSTOM(vp->v_vfsp);
 
 		error = -XFS_SEND_MMAP(mp, vma, 0);
 		if (error)
 			return error;
+#ifdef CONFIG_XFS_DMAPI
+		vma->vm_ops = &linvfs_dmapi_file_vm_ops;
+#endif
 	}
 
-	vma->vm_ops = &linvfs_file_vm_ops;
-
 	VOP_SETATTR(vp, &va, XFS_AT_UPDATIME, NULL, error);
 	if (!error)
 		vn_revalidate(vp);	/* update Linux inode flags */
@@ -609,7 +622,15 @@ struct file_operations linvfs_dir_operations = {
 static struct vm_operations_struct linvfs_file_vm_ops = {
 	.nopage		= filemap_nopage,
 	.populate	= filemap_populate,
+};
+
+#ifdef CONFIG_XFS_DMAPI
+static struct vm_operations_struct linvfs_dmapi_file_vm_ops = {
+	.close		= linvfs_mmap_close,
+	.nopage		= filemap_nopage,
+	.populate	= filemap_populate,
 #ifdef HAVE_VMOP_MPROTECT
 	.mprotect	= linvfs_mprotect,
 #endif
 };
+#endif /* CONFIG_XFS_DMAPI */
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 69809ee..05a447e 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -1174,7 +1174,8 @@ xfs_ioc_xattr(
 
 	switch (cmd) {
 	case XFS_IOC_FSGETXATTR: {
-		va.va_mask = XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_NEXTENTS;
+		va.va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \
+			     XFS_AT_NEXTENTS | XFS_AT_PROJID;
 		VOP_GETATTR(vp, &va, 0, NULL, error);
 		if (error)
 			return -error;
@@ -1182,6 +1183,7 @@ xfs_ioc_xattr(
 		fa.fsx_xflags	= va.va_xflags;
 		fa.fsx_extsize	= va.va_extsize;
 		fa.fsx_nextents = va.va_nextents;
+		fa.fsx_projid	= va.va_projid;
 
 		if (copy_to_user(arg, &fa, sizeof(fa)))
 			return -XFS_ERROR(EFAULT);
@@ -1196,9 +1198,10 @@ xfs_ioc_xattr(
 		if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
 			attr_flags |= ATTR_NONBLOCK;
 
-		va.va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE;
+		va.va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | XFS_AT_PROJID;
 		va.va_xflags  = fa.fsx_xflags;
 		va.va_extsize = fa.fsx_extsize;
+		va.va_projid  = fa.fsx_projid;
 
 		VOP_SETATTR(vp, &va, attr_flags, NULL, error);
 		if (!error)
@@ -1207,7 +1210,8 @@ xfs_ioc_xattr(
 	}
 
 	case XFS_IOC_FSGETXATTRA: {
-		va.va_mask = XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_ANEXTENTS;
+		va.va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \
+			     XFS_AT_ANEXTENTS | XFS_AT_PROJID;
 		VOP_GETATTR(vp, &va, 0, NULL, error);
 		if (error)
 			return -error;
@@ -1215,6 +1219,7 @@ xfs_ioc_xattr(
 		fa.fsx_xflags	= va.va_xflags;
 		fa.fsx_extsize	= va.va_extsize;
 		fa.fsx_nextents = va.va_anextents;
+		fa.fsx_projid	= va.va_projid;
 
 		if (copy_to_user(arg, &fa, sizeof(fa)))
 			return -XFS_ERROR(EFAULT);
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index 71bb410..42dc5e4 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -145,10 +145,10 @@ static inline void set_buffer_unwritten_io(struct buffer_head *bh)
 #define xfs_inherit_nosymlinks	xfs_params.inherit_nosym.val
 #define xfs_rotorstep		xfs_params.rotorstep.val
 
-#ifndef __smp_processor_id
-#define __smp_processor_id()	smp_processor_id()
+#ifndef raw_smp_processor_id
+#define raw_smp_processor_id()	smp_processor_id()
 #endif
-#define current_cpu()		__smp_processor_id()
+#define current_cpu()		raw_smp_processor_id()
 #define current_pid()		(current->pid)
 #define current_fsuid(cred)	(current->fsuid)
 #define current_fsgid(cred)	(current->fsgid)
@@ -230,8 +230,10 @@ static inline void set_buffer_unwritten_io(struct buffer_head *bh)
  * field (see the QCMD macro in quota.h).  These macros help keep the
  * code portable - they are not visible from the syscall interface.
  */
-#define Q_XSETGQLIM	XQM_CMD(0x8)	/* set groups disk limits */
-#define Q_XGETGQUOTA	XQM_CMD(0x9)	/* get groups disk limits */
+#define Q_XSETGQLIM	XQM_CMD(8)	/* set groups disk limits */
+#define Q_XGETGQUOTA	XQM_CMD(9)	/* get groups disk limits */
+#define Q_XSETPQLIM	XQM_CMD(10)	/* set projects disk limits */
+#define Q_XGETPQUOTA	XQM_CMD(11)	/* get projects disk limits */
 
 /* IRIX uses a dynamic sizing algorithm (ndquot = 200 + numprocs*2) */
 /* we may well need to fine-tune this if it ever becomes an issue.  */
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index aa9daae..acab58c 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -209,30 +209,6 @@ unlock:
 	return (-status);
 }
 
-/*
- * xfs_inval_cached_pages
- * 
- * This routine is responsible for keeping direct I/O and buffered I/O
- * somewhat coherent.  From here we make sure that we're at least
- * temporarily holding the inode I/O lock exclusively and then call
- * the page cache to flush and invalidate any cached pages.  If there
- * are no cached pages this routine will be very quick.
- */
-void
-xfs_inval_cached_pages(
-	vnode_t		*vp,
-	xfs_iocore_t	*io,
-	xfs_off_t	offset,
-	int		write,
-	int		relock)
-{
-	if (VN_CACHED(vp)) {
-		xfs_inval_cached_trace(io, offset, -1, ctooff(offtoct(offset)), -1);
-		VOP_FLUSHINVAL_PAGES(vp, ctooff(offtoct(offset)), -1, FI_REMAPF_LOCKED);
-	}
-
-}
-
 ssize_t			/* bytes read, or (-)  error */
 xfs_read(
 	bhv_desc_t		*bdp,
@@ -304,10 +280,11 @@ xfs_read(
 	if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ) &&
 	    !(ioflags & IO_INVIS)) {
 		vrwlock_t locktype = VRWLOCK_READ;
+		int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
 
 		ret = -XFS_SEND_DATA(mp, DM_EVENT_READ,
 					BHV_TO_VNODE(bdp), *offset, size,
-					FILP_DELAY_FLAG(file), &locktype);
+					dmflags, &locktype);
 		if (ret) {
 			xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 			goto unlock_isem;
@@ -867,11 +844,15 @@ retry:
 	    !(ioflags & IO_INVIS)) {
 
 		xfs_rwunlock(bdp, locktype);
+		if (need_isem)
+			up(&inode->i_sem);
 		error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, vp,
 				DM_RIGHT_NULL, vp, DM_RIGHT_NULL, NULL, NULL,
 				0, 0, 0); /* Delay flag intentionally  unused */
 		if (error)
-			goto out_unlock_isem;
+			goto out_nounlocks;
+		if (need_isem)
+			down(&inode->i_sem);
 		xfs_rwlock(bdp, locktype);
 		pos = xip->i_d.di_size;
 		ret = 0;
@@ -986,6 +967,7 @@ retry:
  out_unlock_isem:
 	if (need_isem)
 		up(&inode->i_sem);
+ out_nounlocks:
 	return -error;
 }
 
diff --git a/fs/xfs/linux-2.6/xfs_lrw.h b/fs/xfs/linux-2.6/xfs_lrw.h
index d723e35..f197a72 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.h
+++ b/fs/xfs/linux-2.6/xfs_lrw.h
@@ -94,8 +94,6 @@ extern int xfs_bdstrat_cb(struct xfs_buf *);
 
 extern int xfs_zero_eof(struct vnode *, struct xfs_iocore *, xfs_off_t,
 				xfs_fsize_t, xfs_fsize_t);
-extern void xfs_inval_cached_pages(struct vnode	*, struct xfs_iocore *,
-				xfs_off_t, int, int);
 extern ssize_t xfs_read(struct bhv_desc *, struct kiocb *,
 				const struct iovec *, unsigned int,
 				loff_t *, int, struct cred *);
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 455e2b2..5fe9af3 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -590,8 +590,10 @@ linvfs_sync_super(
 	int		error;
 	int		flags = SYNC_FSDATA;
 
-	if (wait)
-		flags |= SYNC_WAIT;
+	if (unlikely(sb->s_frozen == SB_FREEZE_WRITE))
+		flags = SYNC_QUIESCE;
+	else
+		flags = SYNC_FSDATA | (wait ? SYNC_WAIT : 0);
 
 	VFS_SYNC(vfsp, flags, NULL, error);
 	sb->s_dirt = 0;
@@ -701,7 +703,8 @@ linvfs_getxquota(
 	struct vfs		*vfsp = LINVFS_GET_VFS(sb);
 	int			error, getmode;
 
-	getmode = (type == GRPQUOTA) ? Q_XGETGQUOTA : Q_XGETQUOTA;
+	getmode = (type == USRQUOTA) ? Q_XGETQUOTA :
+		 ((type == GRPQUOTA) ? Q_XGETGQUOTA : Q_XGETPQUOTA);
 	VFS_QUOTACTL(vfsp, getmode, id, (caddr_t)fdq, error);
 	return -error;
 }
@@ -716,7 +719,8 @@ linvfs_setxquota(
 	struct vfs		*vfsp = LINVFS_GET_VFS(sb);
 	int			error, setmode;
 
-	setmode = (type == GRPQUOTA) ? Q_XSETGQLIM : Q_XSETQLIM;
+	setmode = (type == USRQUOTA) ? Q_XSETQLIM :
+		 ((type == GRPQUOTA) ? Q_XSETGQLIM : Q_XSETPQLIM);
 	VFS_QUOTACTL(vfsp, setmode, id, (caddr_t)fdq, error);
 	return -error;
 }
diff --git a/fs/xfs/linux-2.6/xfs_vfs.h b/fs/xfs/linux-2.6/xfs_vfs.h
index 7649399..7ee1f71 100644
--- a/fs/xfs/linux-2.6/xfs_vfs.h
+++ b/fs/xfs/linux-2.6/xfs_vfs.h
@@ -107,6 +107,7 @@ typedef enum {
 #define SYNC_FSDATA		0x0020	/* flush fs data (e.g. superblocks) */
 #define SYNC_REFCACHE		0x0040  /* prune some of the nfs ref cache */
 #define SYNC_REMOUNT		0x0080  /* remount readonly, no dummy LRs */
+#define SYNC_QUIESCE		0x0100  /* quiesce fileystem for a snapshot */
 
 typedef int	(*vfs_mount_t)(bhv_desc_t *,
 				struct xfs_mount_args *, struct cred *);
diff --git a/fs/xfs/linux-2.6/xfs_vnode.c b/fs/xfs/linux-2.6/xfs_vnode.c
index a832d16..250cad5 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.c
+++ b/fs/xfs/linux-2.6/xfs_vnode.c
@@ -411,13 +411,13 @@ vn_remove(
 /*  0 */		(void *)(__psint_t)(vk),		\
 /*  1 */		(void *)(s),				\
 /*  2 */		(void *)(__psint_t) line,		\
-/*  3 */		(void *)(vn_count(vp)), \
+/*  3 */		(void *)(__psint_t)(vn_count(vp)),	\
 /*  4 */		(void *)(ra),				\
 /*  5 */		(void *)(__psunsigned_t)(vp)->v_flag,	\
 /*  6 */		(void *)(__psint_t)current_cpu(),	\
 /*  7 */		(void *)(__psint_t)current_pid(),	\
 /*  8 */		(void *)__return_address,		\
-/*  9 */		0, 0, 0, 0, 0, 0, 0)
+/*  9 */		NULL, NULL, NULL, NULL, NULL, NULL, NULL)
 
 /*
  * Vnode tracing code.
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index 00466c3..a6e57c6 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -426,7 +426,7 @@ typedef struct vattr {
 	u_long		va_extsize;	/* file extent size */
 	u_long		va_nextents;	/* number of extents in file */
 	u_long		va_anextents;	/* number of attr extents in file */
-	int		va_projid;	/* project id */
+	prid_t		va_projid;	/* project id */
 } vattr_t;
 
 /*
diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index 740d20d..46ce1e3 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -101,7 +101,7 @@ int xfs_dqerror_mod = 33;
  * is the d_id field. The idea is to fill in the entire q_core
  * when we read in the on disk dquot.
  */
-xfs_dquot_t *
+STATIC xfs_dquot_t *
 xfs_qm_dqinit(
 	xfs_mount_t  *mp,
 	xfs_dqid_t   id,
@@ -286,7 +286,9 @@ xfs_qm_adjust_dqlimits(
  * We also return 0 as the values of the timers in Q_GETQUOTA calls, when
  * enforcement's off.
  * In contrast, warnings are a little different in that they don't
- * 'automatically' get started when limits get exceeded.
+ * 'automatically' get started when limits get exceeded.  They do
+ * get reset to zero, however, when we find the count to be under
+ * the soft limit (they are only ever set non-zero via userspace).
  */
 void
 xfs_qm_adjust_dqtimers(
@@ -315,6 +317,8 @@ xfs_qm_adjust_dqtimers(
 				INT_GET(d->d_blk_hardlimit, ARCH_CONVERT)))) {
 			INT_SET(d->d_btimer, ARCH_CONVERT,
 				get_seconds() + XFS_QI_BTIMELIMIT(mp));
+		} else {
+			d->d_bwarns = 0;
 		}
 	} else {
 		if ((!d->d_blk_softlimit ||
@@ -336,6 +340,8 @@ xfs_qm_adjust_dqtimers(
 				INT_GET(d->d_ino_hardlimit, ARCH_CONVERT)))) {
 			INT_SET(d->d_itimer, ARCH_CONVERT,
 				get_seconds() + XFS_QI_ITIMELIMIT(mp));
+		} else {
+			d->d_iwarns = 0;
 		}
 	} else {
 		if ((!d->d_ino_softlimit ||
@@ -357,6 +363,8 @@ xfs_qm_adjust_dqtimers(
 				INT_GET(d->d_rtb_hardlimit, ARCH_CONVERT)))) {
 			INT_SET(d->d_rtbtimer, ARCH_CONVERT,
 				get_seconds() + XFS_QI_RTBTIMELIMIT(mp));
+		} else {
+			d->d_rtbwarns = 0;
 		}
 	} else {
 		if ((!d->d_rtb_softlimit ||
@@ -371,68 +379,6 @@ xfs_qm_adjust_dqtimers(
 }
 
 /*
- * Increment or reset warnings of a given dquot.
- */
-int
-xfs_qm_dqwarn(
-	xfs_disk_dquot_t	*d,
-	uint			flags)
-{
-	int	warned;
-
-	/*
-	 * root's limits are not real limits.
-	 */
-	if (!d->d_id)
-		return (0);
-
-	warned = 0;
-	if (INT_GET(d->d_blk_softlimit, ARCH_CONVERT) &&
-	    (INT_GET(d->d_bcount, ARCH_CONVERT) >=
-	     INT_GET(d->d_blk_softlimit, ARCH_CONVERT))) {
-		if (flags & XFS_QMOPT_DOWARN) {
-			INT_MOD(d->d_bwarns, ARCH_CONVERT, +1);
-			warned++;
-		}
-	} else {
-		if (!d->d_blk_softlimit ||
-		    (INT_GET(d->d_bcount, ARCH_CONVERT) <
-		     INT_GET(d->d_blk_softlimit, ARCH_CONVERT))) {
-			d->d_bwarns = 0;
-		}
-	}
-
-	if (INT_GET(d->d_ino_softlimit, ARCH_CONVERT) > 0 &&
-	    (INT_GET(d->d_icount, ARCH_CONVERT) >=
-	     INT_GET(d->d_ino_softlimit, ARCH_CONVERT))) {
-		if (flags & XFS_QMOPT_DOWARN) {
-			INT_MOD(d->d_iwarns, ARCH_CONVERT, +1);
-			warned++;
-		}
-	} else {
-		if (!d->d_ino_softlimit ||
-		    (INT_GET(d->d_icount, ARCH_CONVERT) <
-		     INT_GET(d->d_ino_softlimit, ARCH_CONVERT))) {
-			d->d_iwarns = 0;
-		}
-	}
-#ifdef QUOTADEBUG
-	if (INT_GET(d->d_iwarns, ARCH_CONVERT))
-		cmn_err(CE_DEBUG,
-			"--------@@Inode warnings running : %Lu >= %Lu",
-			INT_GET(d->d_icount, ARCH_CONVERT),
-			INT_GET(d->d_ino_softlimit, ARCH_CONVERT));
-	if (INT_GET(d->d_bwarns, ARCH_CONVERT))
-		cmn_err(CE_DEBUG,
-			"--------@@Blks warnings running : %Lu >= %Lu",
-			INT_GET(d->d_bcount, ARCH_CONVERT),
-			INT_GET(d->d_blk_softlimit, ARCH_CONVERT));
-#endif
-	return (warned);
-}
-
-
-/*
  * initialize a buffer full of dquots and log the whole thing
  */
 STATIC void
@@ -461,9 +407,9 @@ xfs_qm_init_dquot_blk(
 	for (i = 0; i < XFS_QM_DQPERBLK(mp); i++, d++, curid++)
 		xfs_qm_dqinit_core(curid, type, d);
 	xfs_trans_dquot_buf(tp, bp,
-			    type & XFS_DQ_USER ?
-			    XFS_BLI_UDQUOT_BUF :
-			    XFS_BLI_GDQUOT_BUF);
+			    (type & XFS_DQ_USER ? XFS_BLI_UDQUOT_BUF :
+			    ((type & XFS_DQ_PROJ) ? XFS_BLI_PDQUOT_BUF :
+			     XFS_BLI_GDQUOT_BUF)));
 	xfs_trans_log_buf(tp, bp, 0, BBTOB(XFS_QI_DQCHUNKLEN(mp)) - 1);
 }
 
@@ -544,8 +490,7 @@ xfs_qm_dqalloc(
 	 * the entire thing.
 	 */
 	xfs_qm_init_dquot_blk(tp, mp, INT_GET(dqp->q_core.d_id, ARCH_CONVERT),
-			      dqp->dq_flags & (XFS_DQ_USER|XFS_DQ_GROUP),
-			      bp);
+			      dqp->dq_flags & XFS_DQ_ALLTYPES, bp);
 
 	if ((error = xfs_bmap_finish(&tp, &flist, firstblock, &committed))) {
 		goto error1;
@@ -675,8 +620,7 @@ xfs_qm_dqtobp(
 	/*
 	 * A simple sanity check in case we got a corrupted dquot...
 	 */
-	if (xfs_qm_dqcheck(ddq, id,
-			   dqp->dq_flags & (XFS_DQ_USER|XFS_DQ_GROUP),
+	if (xfs_qm_dqcheck(ddq, id, dqp->dq_flags & XFS_DQ_ALLTYPES,
 			   flags & (XFS_QMOPT_DQREPAIR|XFS_QMOPT_DOWARN),
 			   "dqtobp")) {
 		if (!(flags & XFS_QMOPT_DQREPAIR)) {
@@ -953,8 +897,8 @@ int
 xfs_qm_dqget(
 	xfs_mount_t	*mp,
 	xfs_inode_t	*ip,	  /* locked inode (optional) */
-	xfs_dqid_t	id,	  /* gid or uid, depending on type */
-	uint		type,	  /* UDQUOT or GDQUOT */
+	xfs_dqid_t	id,	  /* uid/projid/gid depending on type */
+	uint		type,	  /* XFS_DQ_USER/XFS_DQ_PROJ/XFS_DQ_GROUP */
 	uint		flags,	  /* DQALLOC, DQSUSER, DQREPAIR, DOWARN */
 	xfs_dquot_t	**O_dqpp) /* OUT : locked incore dquot */
 {
@@ -965,6 +909,7 @@ xfs_qm_dqget(
 
 	ASSERT(XFS_IS_QUOTA_RUNNING(mp));
 	if ((! XFS_IS_UQUOTA_ON(mp) && type == XFS_DQ_USER) ||
+	    (! XFS_IS_PQUOTA_ON(mp) && type == XFS_DQ_PROJ) ||
 	    (! XFS_IS_GQUOTA_ON(mp) && type == XFS_DQ_GROUP)) {
 		return (ESRCH);
 	}
@@ -983,7 +928,9 @@ xfs_qm_dqget(
  again:
 
 #ifdef DEBUG
-	ASSERT(type == XFS_DQ_USER || type == XFS_DQ_GROUP);
+	ASSERT(type == XFS_DQ_USER ||
+	       type == XFS_DQ_PROJ ||
+	       type == XFS_DQ_GROUP);
 	if (ip) {
 		ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
 		if (type == XFS_DQ_USER)
@@ -1306,8 +1253,8 @@ xfs_qm_dqflush(
 		return (error);
 	}
 
-	if (xfs_qm_dqcheck(&dqp->q_core, INT_GET(ddqp->d_id, ARCH_CONVERT), 0, XFS_QMOPT_DOWARN,
-			   "dqflush (incore copy)")) {
+	if (xfs_qm_dqcheck(&dqp->q_core, INT_GET(ddqp->d_id, ARCH_CONVERT),
+			   0, XFS_QMOPT_DOWARN, "dqflush (incore copy)")) {
 		xfs_force_shutdown(dqp->q_mount, XFS_CORRUPT_INCORE);
 		return XFS_ERROR(EIO);
 	}
@@ -1459,7 +1406,8 @@ xfs_dqlock2(
 {
 	if (d1 && d2) {
 		ASSERT(d1 != d2);
-		if (INT_GET(d1->q_core.d_id, ARCH_CONVERT) > INT_GET(d2->q_core.d_id, ARCH_CONVERT)) {
+		if (INT_GET(d1->q_core.d_id, ARCH_CONVERT) >
+		    INT_GET(d2->q_core.d_id, ARCH_CONVERT)) {
 			xfs_dqlock(d2);
 			xfs_dqlock(d1);
 		} else {
@@ -1582,8 +1530,7 @@ xfs_qm_dqprint(xfs_dquot_t *dqp)
 	cmn_err(CE_DEBUG, "-----------KERNEL DQUOT----------------");
 	cmn_err(CE_DEBUG, "---- dquotID =  %d",
 		(int)INT_GET(dqp->q_core.d_id, ARCH_CONVERT));
-	cmn_err(CE_DEBUG, "---- type    =  %s",
-		XFS_QM_ISUDQ(dqp) ? "USR" : "GRP");
+	cmn_err(CE_DEBUG, "---- type    =  %s", DQFLAGTO_TYPESTR(dqp));
 	cmn_err(CE_DEBUG, "---- fs      =  0x%p", dqp->q_mount);
 	cmn_err(CE_DEBUG, "---- blkno   =  0x%x", (int) dqp->q_blkno);
 	cmn_err(CE_DEBUG, "---- boffset =  0x%x", (int) dqp->q_bufoffset);
diff --git a/fs/xfs/quota/xfs_dquot.h b/fs/xfs/quota/xfs_dquot.h
index 0c3fe31..3917510 100644
--- a/fs/xfs/quota/xfs_dquot.h
+++ b/fs/xfs/quota/xfs_dquot.h
@@ -114,25 +114,18 @@ typedef struct xfs_dquot {
 #define XFS_DQHOLD(dqp)		((dqp)->q_nrefs++)
 
 /*
- * Quota Accounting flags
+ * Quota Accounting/Enforcement flags
  */
-#define XFS_ALL_QUOTA_ACCT	(XFS_UQUOTA_ACCT | XFS_GQUOTA_ACCT)
-#define XFS_ALL_QUOTA_ENFD	(XFS_UQUOTA_ENFD | XFS_GQUOTA_ENFD)
-#define XFS_ALL_QUOTA_CHKD	(XFS_UQUOTA_CHKD | XFS_GQUOTA_CHKD)
-#define XFS_ALL_QUOTA_ACTV	(XFS_UQUOTA_ACTIVE | XFS_GQUOTA_ACTIVE)
-#define XFS_ALL_QUOTA_ACCT_ENFD (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
-				 XFS_GQUOTA_ACCT|XFS_GQUOTA_ENFD)
+#define XFS_ALL_QUOTA_ACCT	\
+		(XFS_UQUOTA_ACCT | XFS_GQUOTA_ACCT | XFS_PQUOTA_ACCT)
+#define XFS_ALL_QUOTA_ENFD	(XFS_UQUOTA_ENFD | XFS_OQUOTA_ENFD)
+#define XFS_ALL_QUOTA_CHKD	(XFS_UQUOTA_CHKD | XFS_OQUOTA_CHKD)
 
-#define XFS_IS_QUOTA_RUNNING(mp)  ((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
-#define XFS_IS_UQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_UQUOTA_ACCT)
-#define XFS_IS_GQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_GQUOTA_ACCT)
-
-/*
- * Quota Limit Enforcement flags
- */
+#define XFS_IS_QUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
 #define XFS_IS_QUOTA_ENFORCED(mp)	((mp)->m_qflags & XFS_ALL_QUOTA_ENFD)
-#define XFS_IS_UQUOTA_ENFORCED(mp)	((mp)->m_qflags & XFS_UQUOTA_ENFD)
-#define XFS_IS_GQUOTA_ENFORCED(mp)	((mp)->m_qflags & XFS_GQUOTA_ENFD)
+#define XFS_IS_UQUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_UQUOTA_ACCT)
+#define XFS_IS_PQUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_PQUOTA_ACCT)
+#define XFS_IS_GQUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_GQUOTA_ACCT)
 
 #ifdef DEBUG
 static inline int
@@ -167,6 +160,8 @@ XFS_DQ_IS_LOCKED(xfs_dquot_t *dqp)
 #define XFS_DQ_IS_ON_FREELIST(dqp)  ((dqp)->dq_flnext != (dqp))
 #define XFS_DQ_IS_DIRTY(dqp)	((dqp)->dq_flags & XFS_DQ_DIRTY)
 #define XFS_QM_ISUDQ(dqp)	((dqp)->dq_flags & XFS_DQ_USER)
+#define XFS_QM_ISPDQ(dqp)	((dqp)->dq_flags & XFS_DQ_PROJ)
+#define XFS_QM_ISGDQ(dqp)	((dqp)->dq_flags & XFS_DQ_GROUP)
 #define XFS_DQ_TO_QINF(dqp)	((dqp)->q_mount->m_quotainfo)
 #define XFS_DQ_TO_QIP(dqp)	(XFS_QM_ISUDQ(dqp) ? \
 				 XFS_DQ_TO_QINF(dqp)->qi_uquotaip : \
@@ -174,7 +169,7 @@ XFS_DQ_IS_LOCKED(xfs_dquot_t *dqp)
 
 #define XFS_IS_THIS_QUOTA_OFF(d) (! (XFS_QM_ISUDQ(d) ? \
 				     (XFS_IS_UQUOTA_ON((d)->q_mount)) : \
-				     (XFS_IS_GQUOTA_ON((d)->q_mount))))
+				     (XFS_IS_OQUOTA_ON((d)->q_mount))))
 
 #ifdef XFS_DQUOT_TRACE
 /*
@@ -211,7 +206,6 @@ extern void		xfs_qm_adjust_dqtimers(xfs_mount_t *,
 					xfs_disk_dquot_t *);
 extern void		xfs_qm_adjust_dqlimits(xfs_mount_t *,
 					xfs_disk_dquot_t *);
-extern int		xfs_qm_dqwarn(xfs_disk_dquot_t *, uint);
 extern int		xfs_qm_dqget(xfs_mount_t *, xfs_inode_t *,
 					xfs_dqid_t, uint, uint, xfs_dquot_t **);
 extern void		xfs_qm_dqput(xfs_dquot_t *);
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index a5425ee..f5271b7 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -428,7 +428,7 @@ xfs_qm_dquot_logitem_committing(
 /*
  * This is the ops vector for dquots
  */
-struct xfs_item_ops xfs_dquot_item_ops = {
+STATIC struct xfs_item_ops xfs_dquot_item_ops = {
 	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_size,
 	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
 					xfs_qm_dquot_logitem_format,
@@ -646,7 +646,7 @@ xfs_qm_qoffend_logitem_committing(xfs_qoff_logitem_t *qip, xfs_lsn_t commit_lsn)
 	return;
 }
 
-struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
+STATIC struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
 	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
 	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
 					xfs_qm_qoff_logitem_format,
@@ -669,7 +669,7 @@ struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
 /*
  * This is the ops vector shared by all quotaoff-start log items.
  */
-struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
+STATIC struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
 	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
 	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
 					xfs_qm_qoff_logitem_format,
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 89f2cd6..f665ca8f 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -81,12 +81,18 @@ struct xfs_qm	*xfs_Gqm;
 
 kmem_zone_t	*qm_dqzone;
 kmem_zone_t	*qm_dqtrxzone;
-kmem_shaker_t	xfs_qm_shaker;
+STATIC kmem_shaker_t	xfs_qm_shaker;
 
 STATIC void	xfs_qm_list_init(xfs_dqlist_t *, char *, int);
 STATIC void	xfs_qm_list_destroy(xfs_dqlist_t *);
 
+STATIC void	xfs_qm_freelist_init(xfs_frlist_t *);
+STATIC void	xfs_qm_freelist_destroy(xfs_frlist_t *);
+STATIC int	xfs_qm_mplist_nowait(xfs_mount_t *);
+STATIC int	xfs_qm_dqhashlock_nowait(xfs_dquot_t *);
+
 STATIC int	xfs_qm_init_quotainos(xfs_mount_t *);
+STATIC int	xfs_qm_init_quotainfo(xfs_mount_t *);
 STATIC int	xfs_qm_shake(int, unsigned int);
 
 #ifdef DEBUG
@@ -184,7 +190,7 @@ xfs_Gqm_init(void)
 /*
  * Destroy the global quota manager when its reference count goes to zero.
  */
-void
+STATIC void
 xfs_qm_destroy(
 	struct xfs_qm	*xqm)
 {
@@ -304,9 +310,9 @@ xfs_qm_mount_quotainit(
 	uint		flags)
 {
 	/*
-	 * User or group quotas has to be on.
+	 * User, projects or group quotas has to be on.
 	 */
-	ASSERT(flags & (XFSMNT_UQUOTA | XFSMNT_GQUOTA));
+	ASSERT(flags & (XFSMNT_UQUOTA | XFSMNT_PQUOTA | XFSMNT_GQUOTA));
 
 	/*
 	 * Initialize the flags in the mount structure. From this point
@@ -324,7 +330,11 @@ xfs_qm_mount_quotainit(
 	if (flags & XFSMNT_GQUOTA) {
 		mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
 		if (flags & XFSMNT_GQUOTAENF)
-			mp->m_qflags |= XFS_GQUOTA_ENFD;
+			mp->m_qflags |= XFS_OQUOTA_ENFD;
+	} else if (flags & XFSMNT_PQUOTA) {
+		mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE);
+		if (flags & XFSMNT_PQUOTAENF)
+			mp->m_qflags |= XFS_OQUOTA_ENFD;
 	}
 }
 
@@ -357,11 +367,11 @@ xfs_qm_mount_quotas(
 
 	/*
 	 * If a file system had quotas running earlier, but decided to
-	 * mount without -o quota/uquota/gquota options, revoke the
+	 * mount without -o uquota/pquota/gquota options, revoke the
 	 * quotachecked license, and bail out.
 	 */
 	if (! XFS_IS_QUOTA_ON(mp) &&
-	    (mp->m_sb.sb_qflags & (XFS_UQUOTA_ACCT|XFS_GQUOTA_ACCT))) {
+	    (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT)) {
 		mp->m_qflags = 0;
 		goto write_changes;
 	}
@@ -509,7 +519,7 @@ out:
  * Flush all dquots of the given file system to disk. The dquots are
  * _not_ purged from memory here, just their data written to disk.
  */
-int
+STATIC int
 xfs_qm_dqflush_all(
 	xfs_mount_t	*mp,
 	int		flags)
@@ -613,7 +623,7 @@ xfs_qm_detach_gdquots(
 STATIC int
 xfs_qm_dqpurge_int(
 	xfs_mount_t	*mp,
-	uint		flags) /* QUOTAOFF/UMOUNTING/UQUOTA/GQUOTA */
+	uint		flags) /* QUOTAOFF/UMOUNTING/UQUOTA/PQUOTA/GQUOTA */
 {
 	xfs_dquot_t	*dqp;
 	uint		dqtype;
@@ -625,6 +635,7 @@ xfs_qm_dqpurge_int(
 		return (0);
 
 	dqtype = (flags & XFS_QMOPT_UQUOTA) ? XFS_DQ_USER : 0;
+	dqtype |= (flags & XFS_QMOPT_PQUOTA) ? XFS_DQ_PROJ : 0;
 	dqtype |= (flags & XFS_QMOPT_GQUOTA) ? XFS_DQ_GROUP : 0;
 
 	xfs_qm_mplist_lock(mp);
@@ -734,11 +745,11 @@ xfs_qm_dqattach_one(
 
 	/*
 	 * udqhint is the i_udquot field in inode, and is non-NULL only
-	 * when the type arg is XFS_DQ_GROUP. Its purpose is to save a
+	 * when the type arg is group/project. Its purpose is to save a
 	 * lookup by dqid (xfs_qm_dqget) by caching a group dquot inside
 	 * the user dquot.
 	 */
-	ASSERT(!udqhint || type == XFS_DQ_GROUP);
+	ASSERT(!udqhint || type == XFS_DQ_GROUP || type == XFS_DQ_PROJ);
 	if (udqhint && !dolock)
 		xfs_dqlock(udqhint);
 
@@ -897,8 +908,8 @@ xfs_qm_dqattach_grouphint(
 
 
 /*
- * Given a locked inode, attach dquot(s) to it, taking UQUOTAON / GQUOTAON
- * in to account.
+ * Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON
+ * into account.
  * If XFS_QMOPT_DQALLOC, the dquot(s) will be allocated if needed.
  * If XFS_QMOPT_DQLOCK, the dquot(s) will be returned locked. This option pretty
  * much made this code a complete mess, but it has been pretty useful.
@@ -937,8 +948,13 @@ xfs_qm_dqattach(
 		nquotas++;
 	}
 	ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
-	if (XFS_IS_GQUOTA_ON(mp)) {
-		error = xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP,
+	if (XFS_IS_OQUOTA_ON(mp)) {
+		error = XFS_IS_GQUOTA_ON(mp) ?
+			xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP,
+						flags & XFS_QMOPT_DQALLOC,
+						flags & XFS_QMOPT_DQLOCK,
+						ip->i_udquot, &ip->i_gdquot) :
+			xfs_qm_dqattach_one(ip, ip->i_d.di_projid, XFS_DQ_PROJ,
 						flags & XFS_QMOPT_DQALLOC,
 						flags & XFS_QMOPT_DQLOCK,
 						ip->i_udquot, &ip->i_gdquot);
@@ -989,7 +1005,7 @@ xfs_qm_dqattach(
 		}
 		if (XFS_IS_UQUOTA_ON(mp))
 			ASSERT(ip->i_udquot);
-		if (XFS_IS_GQUOTA_ON(mp))
+		if (XFS_IS_OQUOTA_ON(mp))
 			ASSERT(ip->i_gdquot);
 	}
 #endif
@@ -1018,13 +1034,13 @@ xfs_qm_dqdetach(
 
 	ASSERT(ip->i_ino != ip->i_mount->m_sb.sb_uquotino);
 	ASSERT(ip->i_ino != ip->i_mount->m_sb.sb_gquotino);
-	if (ip->i_udquot)
-		xfs_dqtrace_entry_ino(ip->i_udquot, "DQDETTACH", ip);
 	if (ip->i_udquot) {
+		xfs_dqtrace_entry_ino(ip->i_udquot, "DQDETTACH", ip);
 		xfs_qm_dqrele(ip->i_udquot);
 		ip->i_udquot = NULL;
 	}
 	if (ip->i_gdquot) {
+		xfs_dqtrace_entry_ino(ip->i_gdquot, "DQDETTACH", ip);
 		xfs_qm_dqrele(ip->i_gdquot);
 		ip->i_gdquot = NULL;
 	}
@@ -1149,7 +1165,7 @@ xfs_qm_sync(
  * This initializes all the quota information that's kept in the
  * mount structure
  */
-int
+STATIC int
 xfs_qm_init_quotainfo(
 	xfs_mount_t	*mp)
 {
@@ -1202,8 +1218,9 @@ xfs_qm_init_quotainfo(
 	 * and group quotas, at least not at this point.
 	 */
 	error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)0,
-			     (XFS_IS_UQUOTA_RUNNING(mp)) ?
-			     XFS_DQ_USER : XFS_DQ_GROUP,
+			     XFS_IS_UQUOTA_RUNNING(mp) ? XFS_DQ_USER : 
+			     (XFS_IS_GQUOTA_RUNNING(mp) ? XFS_DQ_GROUP :
+				XFS_DQ_PROJ),
 			     XFS_QMOPT_DQSUSER|XFS_QMOPT_DOWARN,
 			     &dqp);
 	if (! error) {
@@ -1234,6 +1251,10 @@ xfs_qm_init_quotainfo(
 				INT_GET(ddqp->d_iwarns, ARCH_CONVERT) ?
 				INT_GET(ddqp->d_iwarns, ARCH_CONVERT) :
 				XFS_QM_IWARNLIMIT;
+		qinf->qi_rtbwarnlimit =
+				INT_GET(ddqp->d_rtbwarns, ARCH_CONVERT) ?
+				INT_GET(ddqp->d_rtbwarns, ARCH_CONVERT) :
+				XFS_QM_RTBWARNLIMIT;
 		qinf->qi_bhardlimit =
 				INT_GET(ddqp->d_blk_hardlimit, ARCH_CONVERT);
 		qinf->qi_bsoftlimit =
@@ -1259,6 +1280,7 @@ xfs_qm_init_quotainfo(
 		qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT;
 		qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT;
 		qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT;
+		qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT;
 	}
 
 	return (0);
@@ -1366,13 +1388,20 @@ xfs_qm_dqget_noattach(
 		ASSERT(udqp);
 	}
 
-	if (XFS_IS_GQUOTA_ON(mp)) {
+	if (XFS_IS_OQUOTA_ON(mp)) {
 		ASSERT(ip->i_gdquot == NULL);
 		if (udqp)
 			xfs_dqunlock(udqp);
-		if ((error = xfs_qm_dqget(mp, ip, ip->i_d.di_gid, XFS_DQ_GROUP,
-					 XFS_QMOPT_DQALLOC|XFS_QMOPT_DOWARN,
-					 &gdqp))) {
+		error = XFS_IS_GQUOTA_ON(mp) ?
+				xfs_qm_dqget(mp, ip,
+					     ip->i_d.di_gid, XFS_DQ_GROUP,
+					     XFS_QMOPT_DQALLOC|XFS_QMOPT_DOWARN,
+					     &gdqp) :
+				xfs_qm_dqget(mp, ip,
+					     ip->i_d.di_projid, XFS_DQ_PROJ,
+					     XFS_QMOPT_DQALLOC|XFS_QMOPT_DOWARN,
+					     &gdqp);
+		if (error) {
 			if (udqp)
 				xfs_qm_dqrele(udqp);
 			ASSERT(error != ESRCH);
@@ -1521,8 +1550,10 @@ xfs_qm_reset_dqcounts(
 		INT_SET(ddq->d_rtbcount, ARCH_CONVERT, 0ULL);
 		INT_SET(ddq->d_btimer, ARCH_CONVERT, (time_t)0);
 		INT_SET(ddq->d_itimer, ARCH_CONVERT, (time_t)0);
+		INT_SET(ddq->d_rtbtimer, ARCH_CONVERT, (time_t)0);
 		INT_SET(ddq->d_bwarns, ARCH_CONVERT, 0UL);
 		INT_SET(ddq->d_iwarns, ARCH_CONVERT, 0UL);
+		INT_SET(ddq->d_rtbwarns, ARCH_CONVERT, 0UL);
 		ddq = (xfs_disk_dquot_t *) ((xfs_dqblk_t *)ddq + 1);
 	}
 
@@ -1541,11 +1572,14 @@ xfs_qm_dqiter_bufs(
 	int		error;
 	int		notcommitted;
 	int		incr;
+	int		type;
 
 	ASSERT(blkcnt > 0);
 	notcommitted = 0;
 	incr = (blkcnt > XFS_QM_MAX_DQCLUSTER_LOGSZ) ?
 		XFS_QM_MAX_DQCLUSTER_LOGSZ : blkcnt;
+	type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER :
+		(flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP);
 	error = 0;
 
 	/*
@@ -1564,9 +1598,7 @@ xfs_qm_dqiter_bufs(
 		if (error)
 			break;
 
-		(void) xfs_qm_reset_dqcounts(mp, bp, firstid,
-					     flags & XFS_QMOPT_UQUOTA ?
-					     XFS_DQ_USER : XFS_DQ_GROUP);
+		(void) xfs_qm_reset_dqcounts(mp, bp, firstid, type);
 		xfs_bdwrite(mp, bp);
 		/*
 		 * goto the next block.
@@ -1578,7 +1610,7 @@ xfs_qm_dqiter_bufs(
 }
 
 /*
- * Iterate over all allocated USR/GRP dquots in the system, calling a
+ * Iterate over all allocated USR/GRP/PRJ dquots in the system, calling a
  * caller supplied function for every chunk of dquots that we find.
  */
 STATIC int
@@ -1849,7 +1881,7 @@ xfs_qm_dqusage_adjust(
 		xfs_qm_quotacheck_dqadjust(udqp, nblks, rtblks);
 		xfs_qm_dqput(udqp);
 	}
-	if (XFS_IS_GQUOTA_ON(mp)) {
+	if (XFS_IS_OQUOTA_ON(mp)) {
 		ASSERT(gdqp);
 		xfs_qm_quotacheck_dqadjust(gdqp, nblks, rtblks);
 		xfs_qm_dqput(gdqp);
@@ -1898,7 +1930,7 @@ xfs_qm_quotacheck(
 	cmn_err(CE_NOTE, "XFS quotacheck %s: Please wait.", mp->m_fsname);
 
 	/*
-	 * First we go thru all the dquots on disk, USR and GRP, and reset
+	 * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset
 	 * their counters to zero. We need a clean slate.
 	 * We don't log our changes till later.
 	 */
@@ -1909,9 +1941,10 @@ xfs_qm_quotacheck(
 	}
 
 	if ((gip = XFS_QI_GQIP(mp))) {
-		if ((error = xfs_qm_dqiterate(mp, gip, XFS_QMOPT_GQUOTA)))
+		if ((error = xfs_qm_dqiterate(mp, gip, XFS_IS_GQUOTA_ON(mp) ?
+					XFS_QMOPT_GQUOTA : XFS_QMOPT_PQUOTA)))
 			goto error_return;
-		flags |= XFS_GQUOTA_CHKD;
+		flags |= XFS_OQUOTA_CHKD;
 	}
 
 	do {
@@ -1938,7 +1971,7 @@ xfs_qm_quotacheck(
 	if (error) {
 		xfs_qm_dqpurge_all(mp,
 				   XFS_QMOPT_UQUOTA|XFS_QMOPT_GQUOTA|
-				   XFS_QMOPT_QUOTAOFF);
+				   XFS_QMOPT_PQUOTA|XFS_QMOPT_QUOTAOFF);
 		goto error_return;
 	}
 	/*
@@ -1961,7 +1994,7 @@ xfs_qm_quotacheck(
 	 * quotachecked status, since we won't be doing accounting for
 	 * that type anymore.
 	 */
-	mp->m_qflags &= ~(XFS_GQUOTA_CHKD | XFS_UQUOTA_CHKD);
+	mp->m_qflags &= ~(XFS_OQUOTA_CHKD | XFS_UQUOTA_CHKD);
 	mp->m_qflags |= flags;
 
 	XQM_LIST_PRINT(&(XFS_QI_MPL_LIST(mp)), MPL_NEXT, "++++ Mp list +++");
@@ -2013,7 +2046,7 @@ xfs_qm_init_quotainos(
 					     0, 0, &uip, 0)))
 				return XFS_ERROR(error);
 		}
-		if (XFS_IS_GQUOTA_ON(mp) &&
+		if (XFS_IS_OQUOTA_ON(mp) &&
 		    mp->m_sb.sb_gquotino != NULLFSINO) {
 			ASSERT(mp->m_sb.sb_gquotino > 0);
 			if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
@@ -2043,10 +2076,12 @@ xfs_qm_init_quotainos(
 
 		flags &= ~XFS_QMOPT_SBVERSION;
 	}
-	if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) {
-		if ((error = xfs_qm_qino_alloc(mp, &gip,
-					      sbflags | XFS_SB_GQUOTINO,
-					      flags | XFS_QMOPT_GQUOTA))) {
+	if (XFS_IS_OQUOTA_ON(mp) && gip == NULL) {
+		flags |= (XFS_IS_GQUOTA_ON(mp) ?
+				XFS_QMOPT_GQUOTA : XFS_QMOPT_PQUOTA);
+		error = xfs_qm_qino_alloc(mp, &gip,
+					  sbflags | XFS_SB_GQUOTINO, flags);
+		if (error) {
 			if (uip)
 				VN_RELE(XFS_ITOV(uip));
 
@@ -2452,6 +2487,7 @@ xfs_qm_vop_dqalloc(
 	xfs_inode_t	*ip,
 	uid_t		uid,
 	gid_t		gid,
+	prid_t		prid,
 	uint		flags,
 	xfs_dquot_t	**O_udqpp,
 	xfs_dquot_t	**O_gdqpp)
@@ -2483,8 +2519,7 @@ xfs_qm_vop_dqalloc(
 	}
 
 	uq = gq = NULL;
-	if ((flags & XFS_QMOPT_UQUOTA) &&
-	    XFS_IS_UQUOTA_ON(mp)) {
+	if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) {
 		if (ip->i_d.di_uid != uid) {
 			/*
 			 * What we need is the dquot that has this uid, and
@@ -2522,8 +2557,7 @@ xfs_qm_vop_dqalloc(
 			xfs_dqunlock(uq);
 		}
 	}
-	if ((flags & XFS_QMOPT_GQUOTA) &&
-	    XFS_IS_GQUOTA_ON(mp)) {
+	if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) {
 		if (ip->i_d.di_gid != gid) {
 			xfs_iunlock(ip, lockflags);
 			if ((error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)gid,
@@ -2546,6 +2580,29 @@ xfs_qm_vop_dqalloc(
 			XFS_DQHOLD(gq);
 			xfs_dqunlock(gq);
 		}
+	} else if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) {
+		if (ip->i_d.di_projid != prid) {
+			xfs_iunlock(ip, lockflags);
+			if ((error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)prid,
+						 XFS_DQ_PROJ,
+						 XFS_QMOPT_DQALLOC |
+						 XFS_QMOPT_DOWARN,
+						 &gq))) {
+				if (uq)
+					xfs_qm_dqrele(uq);
+				ASSERT(error != ENOENT);
+				return (error);
+			}
+			xfs_dqunlock(gq);
+			lockflags = XFS_ILOCK_SHARED;
+			xfs_ilock(ip, lockflags);
+		} else {
+			ASSERT(ip->i_gdquot);
+			gq = ip->i_gdquot;
+			xfs_dqlock(gq);
+			XFS_DQHOLD(gq);
+			xfs_dqunlock(gq);
+		}
 	}
 	if (uq)
 		xfs_dqtrace_entry_ino(uq, "DQALLOC", ip);
@@ -2574,6 +2631,9 @@ xfs_qm_vop_chown(
 	xfs_dquot_t	*newdq)
 {
 	xfs_dquot_t	*prevdq;
+	uint		bfield = XFS_IS_REALTIME_INODE(ip) ?
+				 XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT;
+
 	ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
 	ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
 
@@ -2582,20 +2642,12 @@ xfs_qm_vop_chown(
 	ASSERT(prevdq);
 	ASSERT(prevdq != newdq);
 
-	xfs_trans_mod_dquot(tp, prevdq,
-			    XFS_TRANS_DQ_BCOUNT,
-			    -(ip->i_d.di_nblocks));
-	xfs_trans_mod_dquot(tp, prevdq,
-			    XFS_TRANS_DQ_ICOUNT,
-			    -1);
+	xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks));
+	xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1);
 
 	/* the sparkling new dquot */
-	xfs_trans_mod_dquot(tp, newdq,
-			    XFS_TRANS_DQ_BCOUNT,
-			    ip->i_d.di_nblocks);
-	xfs_trans_mod_dquot(tp, newdq,
-			    XFS_TRANS_DQ_ICOUNT,
-			    1);
+	xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks);
+	xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1);
 
 	/*
 	 * Take an extra reference, because the inode
@@ -2611,7 +2663,7 @@ xfs_qm_vop_chown(
 }
 
 /*
- * Quota reservations for setattr(AT_UID|AT_GID).
+ * Quota reservations for setattr(AT_UID|AT_GID|AT_PROJID).
  */
 int
 xfs_qm_vop_chown_reserve(
@@ -2623,7 +2675,7 @@ xfs_qm_vop_chown_reserve(
 {
 	int		error;
 	xfs_mount_t	*mp;
-	uint		delblks;
+	uint		delblks, blkflags;
 	xfs_dquot_t	*unresudq, *unresgdq, *delblksudq, *delblksgdq;
 
 	ASSERT(XFS_ISLOCKED_INODE(ip));
@@ -2632,6 +2684,8 @@ xfs_qm_vop_chown_reserve(
 
 	delblks = ip->i_delayed_blks;
 	delblksudq = delblksgdq = unresudq = unresgdq = NULL;
+	blkflags = XFS_IS_REALTIME_INODE(ip) ?
+			XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS;
 
 	if (XFS_IS_UQUOTA_ON(mp) && udqp &&
 	    ip->i_d.di_uid != (uid_t)INT_GET(udqp->q_core.d_id, ARCH_CONVERT)) {
@@ -2646,18 +2700,22 @@ xfs_qm_vop_chown_reserve(
 			unresudq = ip->i_udquot;
 		}
 	}
-	if (XFS_IS_GQUOTA_ON(ip->i_mount) && gdqp &&
-	    ip->i_d.di_gid != INT_GET(gdqp->q_core.d_id, ARCH_CONVERT)) {
-		delblksgdq = gdqp;
-		if (delblks) {
-			ASSERT(ip->i_gdquot);
-			unresgdq = ip->i_gdquot;
+	if (XFS_IS_OQUOTA_ON(ip->i_mount) && gdqp) {
+		if ((XFS_IS_GQUOTA_ON(ip->i_mount) && ip->i_d.di_gid !=
+				INT_GET(gdqp->q_core.d_id, ARCH_CONVERT)) ||
+		    (XFS_IS_PQUOTA_ON(ip->i_mount) && ip->i_d.di_projid !=
+				INT_GET(gdqp->q_core.d_id, ARCH_CONVERT))) {
+			delblksgdq = gdqp;
+			if (delblks) {
+				ASSERT(ip->i_gdquot);
+				unresgdq = ip->i_gdquot;
+			}
 		}
 	}
 
 	if ((error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount,
 				delblksudq, delblksgdq, ip->i_d.di_nblocks, 1,
-				flags | XFS_QMOPT_RES_REGBLKS)))
+				flags | blkflags)))
 		return (error);
 
 	/*
@@ -2674,11 +2732,11 @@ xfs_qm_vop_chown_reserve(
 		ASSERT(unresudq || unresgdq);
 		if ((error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount,
 				delblksudq, delblksgdq, (xfs_qcnt_t)delblks, 0,
-				flags | XFS_QMOPT_RES_REGBLKS)))
+				flags | blkflags)))
 			return (error);
 		xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount,
 				unresudq, unresgdq, -((xfs_qcnt_t)delblks), 0,
-				XFS_QMOPT_RES_REGBLKS);
+				blkflags);
 	}
 
 	return (0);
@@ -2751,7 +2809,7 @@ xfs_qm_vop_dqattach_and_dqmod_newinode(
 }
 
 /* ------------- list stuff -----------------*/
-void
+STATIC void
 xfs_qm_freelist_init(xfs_frlist_t *ql)
 {
 	ql->qh_next = ql->qh_prev = (xfs_dquot_t *) ql;
@@ -2760,7 +2818,7 @@ xfs_qm_freelist_init(xfs_frlist_t *ql)
 	ql->qh_nelems = 0;
 }
 
-void
+STATIC void
 xfs_qm_freelist_destroy(xfs_frlist_t *ql)
 {
 	xfs_dquot_t	*dqp, *nextdqp;
@@ -2786,7 +2844,7 @@ xfs_qm_freelist_destroy(xfs_frlist_t *ql)
 	ASSERT(ql->qh_nelems == 0);
 }
 
-void
+STATIC void
 xfs_qm_freelist_insert(xfs_frlist_t *ql, xfs_dquot_t *dq)
 {
 	dq->dq_flnext = ql->qh_next;
@@ -2816,7 +2874,7 @@ xfs_qm_freelist_append(xfs_frlist_t *ql, xfs_dquot_t *dq)
 	xfs_qm_freelist_insert((xfs_frlist_t *)ql->qh_prev, dq);
 }
 
-int
+STATIC int
 xfs_qm_dqhashlock_nowait(
 	xfs_dquot_t *dqp)
 {
@@ -2836,7 +2894,7 @@ xfs_qm_freelist_lock_nowait(
 	return (locked);
 }
 
-int
+STATIC int
 xfs_qm_mplist_nowait(
 	xfs_mount_t	*mp)
 {
diff --git a/fs/xfs/quota/xfs_qm.h b/fs/xfs/quota/xfs_qm.h
index dcf1a7a..b03eecf 100644
--- a/fs/xfs/quota/xfs_qm.h
+++ b/fs/xfs/quota/xfs_qm.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.  All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of version 2 of the GNU General Public License as
@@ -133,8 +133,9 @@ typedef struct xfs_quotainfo {
 	time_t		 qi_btimelimit;	 /* limit for blks timer */
 	time_t		 qi_itimelimit;	 /* limit for inodes timer */
 	time_t		 qi_rtbtimelimit;/* limit for rt blks timer */
-	xfs_qwarncnt_t	 qi_bwarnlimit;	 /* limit for num warnings */
-	xfs_qwarncnt_t	 qi_iwarnlimit;	 /* limit for num warnings */
+	xfs_qwarncnt_t	 qi_bwarnlimit;	 /* limit for blks warnings */
+	xfs_qwarncnt_t	 qi_iwarnlimit;	 /* limit for inodes warnings */
+	xfs_qwarncnt_t	 qi_rtbwarnlimit;/* limit for rt blks warnings */
 	mutex_t		 qi_quotaofflock;/* to serialize quotaoff */
 	xfs_filblks_t	 qi_dqchunklen;	 /* # BBs in a chunk of dqs */
 	uint		 qi_dqperchunk;	 /* # ondisk dqs in above chunk */
@@ -176,6 +177,7 @@ typedef struct xfs_dquot_acct {
 
 #define XFS_QM_BWARNLIMIT	5
 #define XFS_QM_IWARNLIMIT	5
+#define XFS_QM_RTBWARNLIMIT	5
 
 #define XFS_QM_LOCK(xqm)	(mutex_lock(&xqm##_lock, PINOD))
 #define XFS_QM_UNLOCK(xqm)	(mutex_unlock(&xqm##_lock))
@@ -184,7 +186,6 @@ typedef struct xfs_dquot_acct {
 
 extern void		xfs_mount_reset_sbqflags(xfs_mount_t *);
 
-extern int		xfs_qm_init_quotainfo(xfs_mount_t *);
 extern void		xfs_qm_destroy_quotainfo(xfs_mount_t *);
 extern int		xfs_qm_mount_quotas(xfs_mount_t *, int);
 extern void		xfs_qm_mount_quotainit(xfs_mount_t *, uint);
@@ -203,7 +204,7 @@ extern void		xfs_qm_dqrele_all_inodes(xfs_mount_t *, uint);
 
 /* vop stuff */
 extern int		xfs_qm_vop_dqalloc(xfs_mount_t *, xfs_inode_t *,
-					uid_t, gid_t, uint,
+					uid_t, gid_t, prid_t, uint,
 					xfs_dquot_t **, xfs_dquot_t **);
 extern void		xfs_qm_vop_dqattach_and_dqmod_newinode(
 					xfs_trans_t *, xfs_inode_t *,
@@ -215,14 +216,9 @@ extern int		xfs_qm_vop_chown_reserve(xfs_trans_t *, xfs_inode_t *,
 					xfs_dquot_t *, xfs_dquot_t *, uint);
 
 /* list stuff */
-extern void		xfs_qm_freelist_init(xfs_frlist_t *);
-extern void		xfs_qm_freelist_destroy(xfs_frlist_t *);
-extern void		xfs_qm_freelist_insert(xfs_frlist_t *, xfs_dquot_t *);
 extern void		xfs_qm_freelist_append(xfs_frlist_t *, xfs_dquot_t *);
 extern void		xfs_qm_freelist_unlink(xfs_dquot_t *);
 extern int		xfs_qm_freelist_lock_nowait(xfs_qm_t *);
-extern int		xfs_qm_mplist_nowait(xfs_mount_t *);
-extern int		xfs_qm_dqhashlock_nowait(xfs_dquot_t *);
 
 /* system call interface */
 extern int		xfs_qm_quotactl(bhv_desc_t *, int, int, xfs_caddr_t);
diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
index be67d9c..dc3c37a 100644
--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -71,10 +71,13 @@
 #define MNTOPT_NOQUOTA	"noquota"	/* no quotas */
 #define MNTOPT_USRQUOTA	"usrquota"	/* user quota enabled */
 #define MNTOPT_GRPQUOTA	"grpquota"	/* group quota enabled */
+#define MNTOPT_PRJQUOTA	"prjquota"	/* project quota enabled */
 #define MNTOPT_UQUOTA	"uquota"	/* user quota (IRIX variant) */
 #define MNTOPT_GQUOTA	"gquota"	/* group quota (IRIX variant) */
+#define MNTOPT_PQUOTA	"pquota"	/* project quota (IRIX variant) */
 #define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */
 #define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
+#define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */
 #define MNTOPT_QUOTANOENF  "qnoenforce"	/* same as uqnoenforce */
 
 STATIC int
@@ -109,6 +112,14 @@ xfs_qm_parseargs(
 			args->flags |= XFSMNT_UQUOTA;
 			args->flags &= ~XFSMNT_UQUOTAENF;
 			referenced = 1;
+		} else if (!strcmp(this_char, MNTOPT_PQUOTA) ||
+			   !strcmp(this_char, MNTOPT_PRJQUOTA)) {
+			args->flags |= XFSMNT_PQUOTA | XFSMNT_PQUOTAENF;
+			referenced = 1;
+		} else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) {
+			args->flags |= XFSMNT_PQUOTA;
+			args->flags &= ~XFSMNT_PQUOTAENF;
+			referenced = 1;
 		} else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
 			   !strcmp(this_char, MNTOPT_GRPQUOTA)) {
 			args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF;
@@ -127,6 +138,12 @@ xfs_qm_parseargs(
 			*this_char++ = ',';
 	}
 
+	if ((args->flags & XFSMNT_GQUOTA) && (args->flags & XFSMNT_PQUOTA)) {
+		cmn_err(CE_WARN,
+			"XFS: cannot mount with both project and group quota");
+		return XFS_ERROR(EINVAL);
+	}
+
 	PVFS_PARSEARGS(BHV_NEXT(bhv), options, args, update, error);
 	if (!error && !referenced)
 		bhv_remove_vfsops(bhvtovfs(bhv), VFS_POSITION_QM);
@@ -148,13 +165,19 @@ xfs_qm_showargs(
 			seq_puts(m, "," MNTOPT_UQUOTANOENF);
 	}
 
+	if (mp->m_qflags & XFS_PQUOTA_ACCT) {
+		(mp->m_qflags & XFS_OQUOTA_ENFD) ?
+			seq_puts(m, "," MNTOPT_PRJQUOTA) :
+			seq_puts(m, "," MNTOPT_PQUOTANOENF);
+	}
+
 	if (mp->m_qflags & XFS_GQUOTA_ACCT) {
-		(mp->m_qflags & XFS_GQUOTA_ENFD) ?
+		(mp->m_qflags & XFS_OQUOTA_ENFD) ?
 			seq_puts(m, "," MNTOPT_GRPQUOTA) :
 			seq_puts(m, "," MNTOPT_GQUOTANOENF);
 	}
 
-	if (!(mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_GQUOTA_ACCT)))
+	if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT))
 		seq_puts(m, "," MNTOPT_NOQUOTA);
 
 	PVFS_SHOWARGS(BHV_NEXT(bhv), m, error);
@@ -171,7 +194,7 @@ xfs_qm_mount(
 	struct xfs_mount	*mp = XFS_VFSTOM(vfsp);
 	int			error;
 
-	if (args->flags & (XFSMNT_UQUOTA | XFSMNT_GQUOTA))
+	if (args->flags & (XFSMNT_UQUOTA | XFSMNT_GQUOTA | XFSMNT_PQUOTA))
 		xfs_qm_mount_quotainit(mp, args->flags);
 	PVFS_MOUNT(BHV_NEXT(bhv), args, cr, error);
 	return error;
@@ -255,16 +278,17 @@ xfs_qm_newmount(
 	uint		*quotaflags)
 {
 	uint		quotaondisk;
-	uint		uquotaondisk = 0, gquotaondisk = 0;
+	uint		uquotaondisk = 0, gquotaondisk = 0, pquotaondisk = 0;
 
 	*quotaflags = 0;
 	*needquotamount = B_FALSE;
 
 	quotaondisk = XFS_SB_VERSION_HASQUOTA(&mp->m_sb) &&
-		mp->m_sb.sb_qflags & (XFS_UQUOTA_ACCT|XFS_GQUOTA_ACCT);
+				(mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT);
 
 	if (quotaondisk) {
 		uquotaondisk = mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT;
+		pquotaondisk = mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT;
 		gquotaondisk = mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT;
 	}
 
@@ -277,13 +301,16 @@ xfs_qm_newmount(
 
 	if (((uquotaondisk && !XFS_IS_UQUOTA_ON(mp)) ||
 	    (!uquotaondisk &&  XFS_IS_UQUOTA_ON(mp)) ||
+	     (pquotaondisk && !XFS_IS_PQUOTA_ON(mp)) ||
+	    (!pquotaondisk &&  XFS_IS_PQUOTA_ON(mp)) ||
 	     (gquotaondisk && !XFS_IS_GQUOTA_ON(mp)) ||
-	    (!gquotaondisk &&  XFS_IS_GQUOTA_ON(mp)))  &&
+	    (!gquotaondisk &&  XFS_IS_OQUOTA_ON(mp)))  &&
 	    xfs_dev_is_read_only(mp, "changing quota state")) {
 		cmn_err(CE_WARN,
-			"XFS: please mount with%s%s%s.",
+			"XFS: please mount with%s%s%s%s.",
 			(!quotaondisk ? "out quota" : ""),
 			(uquotaondisk ? " usrquota" : ""),
+			(pquotaondisk ? " prjquota" : ""),
 			(gquotaondisk ? " grpquota" : ""));
 		return XFS_ERROR(EPERM);
 	}
@@ -359,7 +386,7 @@ xfs_qm_dqrele_null(
 }
 
 
-struct xfs_qmops xfs_qmcore_xfs = {
+STATIC struct xfs_qmops xfs_qmcore_xfs = {
 	.xfs_qminit		= xfs_qm_newmount,
 	.xfs_qmdone		= xfs_qm_unmount_quotadestroy,
 	.xfs_qmmount		= xfs_qm_endmount,
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 229f5b5..68e9896 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -118,40 +118,41 @@ xfs_qm_quotactl(
 	 * The following commands are valid even when quotaoff.
 	 */
 	switch (cmd) {
+	case Q_XQUOTARM:
 		/*
-		 * truncate quota files. quota must be off.
+		 * Truncate quota files. quota must be off.
 		 */
-	      case Q_XQUOTARM:
 		if (XFS_IS_QUOTA_ON(mp) || addr == NULL)
 			return XFS_ERROR(EINVAL);
 		if (vfsp->vfs_flag & VFS_RDONLY)
 			return XFS_ERROR(EROFS);
 		return (xfs_qm_scall_trunc_qfiles(mp,
 			       xfs_qm_import_qtype_flags(*(uint *)addr)));
+
+	case Q_XGETQSTAT:
 		/*
 		 * Get quota status information.
 		 */
-	      case Q_XGETQSTAT:
 		return (xfs_qm_scall_getqstat(mp, (fs_quota_stat_t *)addr));
 
+	case Q_XQUOTAON:
 		/*
-		 * QUOTAON for root f/s and quota enforcement on others..
-		 * Quota accounting for non-root f/s's must be turned on
-		 * at mount time.
+		 * QUOTAON - enabling quota enforcement.
+		 * Quota accounting must be turned on at mount time.
 		 */
-	      case Q_XQUOTAON:
 		if (addr == NULL)
 			return XFS_ERROR(EINVAL);
 		if (vfsp->vfs_flag & VFS_RDONLY)
 			return XFS_ERROR(EROFS);
 		return (xfs_qm_scall_quotaon(mp,
 					  xfs_qm_import_flags(*(uint *)addr)));
-	      case Q_XQUOTAOFF:
+
+	case Q_XQUOTAOFF:
 		if (vfsp->vfs_flag & VFS_RDONLY)
 			return XFS_ERROR(EROFS);
 		break;
 
-	      default:
+	default:
 		break;
 	}
 
@@ -159,7 +160,7 @@ xfs_qm_quotactl(
 		return XFS_ERROR(ESRCH);
 
 	switch (cmd) {
-	      case Q_XQUOTAOFF:
+	case Q_XQUOTAOFF:
 		if (vfsp->vfs_flag & VFS_RDONLY)
 			return XFS_ERROR(EROFS);
 		error = xfs_qm_scall_quotaoff(mp,
@@ -167,42 +168,39 @@ xfs_qm_quotactl(
 					    B_FALSE);
 		break;
 
-		/*
-		 * Defaults to XFS_GETUQUOTA.
-		 */
-	      case Q_XGETQUOTA:
+	case Q_XGETQUOTA:
 		error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_USER,
 					(fs_disk_quota_t *)addr);
 		break;
-		/*
-		 * Set limits, both hard and soft. Defaults to Q_SETUQLIM.
-		 */
-	      case Q_XSETQLIM:
+	case Q_XGETGQUOTA:
+		error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_GROUP,
+					(fs_disk_quota_t *)addr);
+		break;
+	case Q_XGETPQUOTA:
+		error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_PROJ,
+					(fs_disk_quota_t *)addr);
+		break;
+
+	case Q_XSETQLIM:
 		if (vfsp->vfs_flag & VFS_RDONLY)
 			return XFS_ERROR(EROFS);
 		error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_USER,
 					     (fs_disk_quota_t *)addr);
 		break;
-
-	       case Q_XSETGQLIM:
+	case Q_XSETGQLIM:
 		if (vfsp->vfs_flag & VFS_RDONLY)
 			return XFS_ERROR(EROFS);
 		error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_GROUP,
 					     (fs_disk_quota_t *)addr);
 		break;
-
-
-	      case Q_XGETGQUOTA:
-		error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_GROUP,
-					(fs_disk_quota_t *)addr);
+	case Q_XSETPQLIM:
+		if (vfsp->vfs_flag & VFS_RDONLY)
+			return XFS_ERROR(EROFS);
+		error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_PROJ,
+					     (fs_disk_quota_t *)addr);
 		break;
 
-		/*
-		 * Quotas are entirely undefined after quotaoff in XFS quotas.
-		 * For instance, there's no way to set limits when quotaoff.
-		 */
-
-	      default:
+	default:
 		error = XFS_ERROR(EINVAL);
 		break;
 	}
@@ -286,8 +284,12 @@ xfs_qm_scall_quotaoff(
 	}
 	if (flags & XFS_GQUOTA_ACCT) {
 		dqtype |= XFS_QMOPT_GQUOTA;
-		flags |= (XFS_GQUOTA_CHKD | XFS_GQUOTA_ENFD);
+		flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD);
 		inactivate_flags |= XFS_GQUOTA_ACTIVE;
+	} else if (flags & XFS_PQUOTA_ACCT) {
+		dqtype |= XFS_QMOPT_PQUOTA;
+		flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD);
+		inactivate_flags |= XFS_PQUOTA_ACTIVE;
 	}
 
 	/*
@@ -364,7 +366,8 @@ xfs_qm_scall_quotaoff(
 	/*
 	 * If quotas is completely disabled, close shop.
 	 */
-	if ((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_ALL) {
+	if (((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET1) ||
+	    ((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET2)) {
 		mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
 		xfs_qm_destroy_quotainfo(mp);
 		return (0);
@@ -378,7 +381,7 @@ xfs_qm_scall_quotaoff(
 		XFS_PURGE_INODE(XFS_QI_UQIP(mp));
 		XFS_QI_UQIP(mp) = NULL;
 	}
-	if ((dqtype & XFS_QMOPT_GQUOTA) && XFS_QI_GQIP(mp)) {
+	if ((dqtype & (XFS_QMOPT_GQUOTA|XFS_QMOPT_PQUOTA)) && XFS_QI_GQIP(mp)) {
 		XFS_PURGE_INODE(XFS_QI_GQIP(mp));
 		XFS_QI_GQIP(mp) = NULL;
 	}
@@ -411,7 +414,8 @@ xfs_qm_scall_trunc_qfiles(
 		}
 	}
 
-	if ((flags & XFS_DQ_GROUP) && mp->m_sb.sb_gquotino != NULLFSINO) {
+	if ((flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) &&
+	    mp->m_sb.sb_gquotino != NULLFSINO) {
 		error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip, 0);
 		if (! error) {
 			(void) xfs_truncate_file(mp, qip);
@@ -434,7 +438,7 @@ xfs_qm_scall_quotaon(
 	uint		flags)
 {
 	int		error;
-	unsigned long s;
+	unsigned long	s;
 	uint		qf;
 	uint		accflags;
 	__int64_t	sbflags;
@@ -468,9 +472,13 @@ xfs_qm_scall_quotaon(
 	    (mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 &&
 	    (flags & XFS_UQUOTA_ENFD))
 	    ||
+	    ((flags & XFS_PQUOTA_ACCT) == 0 &&
+	    (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 &&
+	    (flags & XFS_OQUOTA_ENFD))
+	    ||
 	    ((flags & XFS_GQUOTA_ACCT) == 0 &&
 	    (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 &&
-	    (flags & XFS_GQUOTA_ENFD))) {
+	    (flags & XFS_OQUOTA_ENFD))) {
 		qdprintk("Can't enforce without acct, flags=%x sbflags=%x\n",
 			flags, mp->m_sb.sb_qflags);
 		return XFS_ERROR(EINVAL);
@@ -504,6 +512,10 @@ xfs_qm_scall_quotaon(
 	 */
 	if  (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) !=
 	     (mp->m_qflags & XFS_UQUOTA_ACCT)) ||
+	     ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) !=
+	     (mp->m_qflags & XFS_PQUOTA_ACCT)) ||
+	     ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) !=
+	     (mp->m_qflags & XFS_GQUOTA_ACCT)) ||
 	    (flags & XFS_ALL_QUOTA_ENFD) == 0)
 		return (0);
 
@@ -521,7 +533,6 @@ xfs_qm_scall_quotaon(
 }
 
 
-
 /*
  * Return quota status information, such as uquota-off, enforcements, etc.
  */
@@ -606,7 +617,8 @@ xfs_qm_scall_setqlim(
 	if (!capable(CAP_SYS_ADMIN))
 		return XFS_ERROR(EPERM);
 
-	if ((newlim->d_fieldmask & (FS_DQ_LIMIT_MASK|FS_DQ_TIMER_MASK)) == 0)
+	if ((newlim->d_fieldmask &
+	    (FS_DQ_LIMIT_MASK|FS_DQ_TIMER_MASK|FS_DQ_WARNS_MASK)) == 0)
 		return (0);
 
 	tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM);
@@ -691,12 +703,23 @@ xfs_qm_scall_setqlim(
 		qdprintk("ihard %Ld < isoft %Ld\n", hard, soft);
 	}
 
+	/*
+	 * Update warnings counter(s) if requested
+	 */
+	if (newlim->d_fieldmask & FS_DQ_BWARNS)
+		INT_SET(ddq->d_bwarns, ARCH_CONVERT, newlim->d_bwarns);
+	if (newlim->d_fieldmask & FS_DQ_IWARNS)
+		INT_SET(ddq->d_iwarns, ARCH_CONVERT, newlim->d_iwarns);
+	if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
+		INT_SET(ddq->d_rtbwarns, ARCH_CONVERT, newlim->d_rtbwarns);
+
 	if (id == 0) {
 		/*
 		 * Timelimits for the super user set the relative time
 		 * the other users can be over quota for this file system.
 		 * If it is zero a default is used.  Ditto for the default
-		 * soft and hard limit values (already done, above).
+		 * soft and hard limit values (already done, above), and
+		 * for warnings.
 		 */
 		if (newlim->d_fieldmask & FS_DQ_BTIMER) {
 			mp->m_quotainfo->qi_btimelimit = newlim->d_btimer;
@@ -710,7 +733,13 @@ xfs_qm_scall_setqlim(
 			mp->m_quotainfo->qi_rtbtimelimit = newlim->d_rtbtimer;
 			INT_SET(ddq->d_rtbtimer, ARCH_CONVERT, newlim->d_rtbtimer);
 		}
-	} else /* if (XFS_IS_QUOTA_ENFORCED(mp)) */ {
+		if (newlim->d_fieldmask & FS_DQ_BWARNS)
+			mp->m_quotainfo->qi_bwarnlimit = newlim->d_bwarns;
+		if (newlim->d_fieldmask & FS_DQ_IWARNS)
+			mp->m_quotainfo->qi_iwarnlimit = newlim->d_iwarns;
+		if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
+			mp->m_quotainfo->qi_rtbwarnlimit = newlim->d_rtbwarns;
+	} else {
 		/*
 		 * If the user is now over quota, start the timelimit.
 		 * The user will not be 'warned'.
@@ -776,9 +805,9 @@ xfs_qm_log_quotaoff_end(
 	xfs_qoff_logitem_t	*startqoff,
 	uint			flags)
 {
-	xfs_trans_t	       *tp;
+	xfs_trans_t		*tp;
 	int			error;
-	xfs_qoff_logitem_t     *qoffi;
+	xfs_qoff_logitem_t	*qoffi;
 
 	tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF_END);
 
@@ -928,18 +957,26 @@ xfs_qm_export_dquot(
 
 STATIC uint
 xfs_qm_import_qtype_flags(
-	uint uflags)
+	uint		uflags)
 {
+	uint		oflags = 0;
+
 	/*
-	 * Can't be both at the same time.
+	 * Can't be more than one, or none.
 	 */
 	if (((uflags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) ==
-	     (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) ||
-	    ((uflags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) == 0))
+			(XFS_GROUP_QUOTA | XFS_USER_QUOTA)) ||
+	    ((uflags & (XFS_GROUP_QUOTA | XFS_PROJ_QUOTA)) ==
+			(XFS_GROUP_QUOTA | XFS_PROJ_QUOTA)) ||
+	    ((uflags & (XFS_USER_QUOTA | XFS_PROJ_QUOTA)) ==
+			(XFS_USER_QUOTA | XFS_PROJ_QUOTA)) ||
+	    ((uflags & (XFS_GROUP_QUOTA|XFS_USER_QUOTA|XFS_PROJ_QUOTA)) == 0))
 		return (0);
 
-	return (uflags & XFS_USER_QUOTA) ?
-		XFS_DQ_USER : XFS_DQ_GROUP;
+	oflags |= (uflags & XFS_USER_QUOTA) ? XFS_DQ_USER : 0;
+	oflags |= (uflags & XFS_PROJ_QUOTA) ? XFS_DQ_PROJ : 0;
+	oflags |= (uflags & XFS_GROUP_QUOTA) ? XFS_DQ_GROUP: 0;
+	return oflags;
 }
 
 STATIC uint
@@ -947,14 +984,19 @@ xfs_qm_export_qtype_flags(
 	uint flags)
 {
 	/*
-	 * Can't be both at the same time.
+	 * Can't be more than one, or none.
 	 */
-	ASSERT((flags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) !=
-		(XFS_GROUP_QUOTA | XFS_USER_QUOTA));
-	ASSERT((flags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) != 0);
+	ASSERT((flags & (XFS_PROJ_QUOTA | XFS_USER_QUOTA)) !=
+		(XFS_PROJ_QUOTA | XFS_USER_QUOTA));
+	ASSERT((flags & (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)) !=
+		(XFS_PROJ_QUOTA | XFS_GROUP_QUOTA));
+	ASSERT((flags & (XFS_USER_QUOTA | XFS_GROUP_QUOTA)) !=
+		(XFS_USER_QUOTA | XFS_GROUP_QUOTA));
+	ASSERT((flags & (XFS_PROJ_QUOTA|XFS_USER_QUOTA|XFS_GROUP_QUOTA)) != 0);
 
 	return (flags & XFS_DQ_USER) ?
-		XFS_USER_QUOTA : XFS_GROUP_QUOTA;
+		XFS_USER_QUOTA : (flags & XFS_DQ_PROJ) ?
+			XFS_PROJ_QUOTA : XFS_GROUP_QUOTA;
 }
 
 STATIC uint
@@ -965,12 +1007,14 @@ xfs_qm_import_flags(
 
 	if (uflags & XFS_QUOTA_UDQ_ACCT)
 		flags |= XFS_UQUOTA_ACCT;
+	if (uflags & XFS_QUOTA_PDQ_ACCT)
+		flags |= XFS_PQUOTA_ACCT;
 	if (uflags & XFS_QUOTA_GDQ_ACCT)
 		flags |= XFS_GQUOTA_ACCT;
 	if (uflags & XFS_QUOTA_UDQ_ENFD)
 		flags |= XFS_UQUOTA_ENFD;
-	if (uflags & XFS_QUOTA_GDQ_ENFD)
-		flags |= XFS_GQUOTA_ENFD;
+	if (uflags & (XFS_QUOTA_PDQ_ENFD|XFS_QUOTA_GDQ_ENFD))
+		flags |= XFS_OQUOTA_ENFD;
 	return (flags);
 }
 
@@ -984,12 +1028,16 @@ xfs_qm_export_flags(
 	uflags = 0;
 	if (flags & XFS_UQUOTA_ACCT)
 		uflags |= XFS_QUOTA_UDQ_ACCT;
+	if (flags & XFS_PQUOTA_ACCT)
+		uflags |= XFS_QUOTA_PDQ_ACCT;
 	if (flags & XFS_GQUOTA_ACCT)
 		uflags |= XFS_QUOTA_GDQ_ACCT;
 	if (flags & XFS_UQUOTA_ENFD)
 		uflags |= XFS_QUOTA_UDQ_ENFD;
-	if (flags & XFS_GQUOTA_ENFD)
-		uflags |= XFS_QUOTA_GDQ_ENFD;
+	if (flags & (XFS_OQUOTA_ENFD)) {
+		uflags |= (flags & XFS_GQUOTA_ACCT) ?
+			XFS_QUOTA_GDQ_ENFD : XFS_QUOTA_PDQ_ENFD;
+	}
 	return (uflags);
 }
 
@@ -1070,7 +1118,7 @@ again:
 			xfs_qm_dqrele(ip->i_udquot);
 			ip->i_udquot = NULL;
 		}
-		if ((flags & XFS_GQUOTA_ACCT) && ip->i_gdquot) {
+		if (flags & (XFS_PQUOTA_ACCT|XFS_GQUOTA_ACCT) && ip->i_gdquot) {
 			xfs_qm_dqrele(ip->i_gdquot);
 			ip->i_gdquot = NULL;
 		}
@@ -1160,7 +1208,6 @@ xfs_qm_dqtest_print(
 {
 	cmn_err(CE_DEBUG, "-----------DQTEST DQUOT----------------");
 	cmn_err(CE_DEBUG, "---- dquot ID = %d", d->d_id);
-	cmn_err(CE_DEBUG, "---- type     = %s", XFS_QM_ISUDQ(d)? "USR" : "GRP");
 	cmn_err(CE_DEBUG, "---- fs       = 0x%p", d->q_mount);
 	cmn_err(CE_DEBUG, "---- bcount   = %Lu (0x%x)",
 		d->d_bcount, (int)d->d_bcount);
@@ -1231,7 +1278,7 @@ xfs_dqtest_cmp2(
 #ifdef QUOTADEBUG
 	if (!err) {
 		cmn_err(CE_DEBUG, "%d [%s] [0x%p] qchecked",
-			d->d_id, XFS_QM_ISUDQ(d) ? "USR" : "GRP", d->q_mount);
+			d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount);
 	}
 #endif
 	return (err);
@@ -1287,6 +1334,7 @@ STATIC void
 xfs_qm_internalqcheck_get_dquots(
 	xfs_mount_t	*mp,
 	xfs_dqid_t	uid,
+	xfs_dqid_t	projid,
 	xfs_dqid_t	gid,
 	xfs_dqtest_t	**ud,
 	xfs_dqtest_t	**gd)
@@ -1295,6 +1343,8 @@ xfs_qm_internalqcheck_get_dquots(
 		xfs_qm_internalqcheck_dqget(mp, uid, XFS_DQ_USER, ud);
 	if (XFS_IS_GQUOTA_ON(mp))
 		xfs_qm_internalqcheck_dqget(mp, gid, XFS_DQ_GROUP, gd);
+	else if (XFS_IS_PQUOTA_ON(mp))
+		xfs_qm_internalqcheck_dqget(mp, projid, XFS_DQ_PROJ, gd);
 }
 
 
@@ -1362,13 +1412,14 @@ xfs_qm_internalqcheck_adjust(
 	}
 	xfs_qm_internalqcheck_get_dquots(mp,
 					(xfs_dqid_t) ip->i_d.di_uid,
+					(xfs_dqid_t) ip->i_d.di_projid,
 					(xfs_dqid_t) ip->i_d.di_gid,
 					&ud, &gd);
 	if (XFS_IS_UQUOTA_ON(mp)) {
 		ASSERT(ud);
 		xfs_qm_internalqcheck_dqadjust(ip, ud);
 	}
-	if (XFS_IS_GQUOTA_ON(mp)) {
+	if (XFS_IS_OQUOTA_ON(mp)) {
 		ASSERT(gd);
 		xfs_qm_internalqcheck_dqadjust(ip, gd);
 	}
diff --git a/fs/xfs/quota/xfs_quota_priv.h b/fs/xfs/quota/xfs_quota_priv.h
index 414b600..bf413e7 100644
--- a/fs/xfs/quota/xfs_quota_priv.h
+++ b/fs/xfs/quota/xfs_quota_priv.h
@@ -56,6 +56,7 @@
 #define XFS_QI_RTBTIMELIMIT(mp) ((mp)->m_quotainfo->qi_rtbtimelimit)
 #define XFS_QI_ITIMELIMIT(mp)	((mp)->m_quotainfo->qi_itimelimit)
 #define XFS_QI_BWARNLIMIT(mp)	((mp)->m_quotainfo->qi_bwarnlimit)
+#define XFS_QI_RTBWARNLIMIT(mp)	((mp)->m_quotainfo->qi_rtbwarnlimit)
 #define XFS_QI_IWARNLIMIT(mp)	((mp)->m_quotainfo->qi_iwarnlimit)
 #define XFS_QI_QOFFLOCK(mp)	((mp)->m_quotainfo->qi_quotaofflock)
 
@@ -102,7 +103,8 @@ static inline int XQMISLCKD(struct xfs_dqhash *h)
 				     (xfs_Gqm->qm_grp_dqhtable + \
 				      XFS_DQ_HASHVAL(mp, id)))
 #define XFS_IS_DQTYPE_ON(mp, type)   (type == XFS_DQ_USER ? \
-				      XFS_IS_UQUOTA_ON(mp):XFS_IS_GQUOTA_ON(mp))
+					XFS_IS_UQUOTA_ON(mp) : \
+					XFS_IS_OQUOTA_ON(mp))
 #define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \
 	!dqp->q_core.d_blk_hardlimit && \
 	!dqp->q_core.d_blk_softlimit && \
@@ -177,16 +179,11 @@ for ((dqp) = (qlist)->qh_next; (dqp) != (xfs_dquot_t *)(qlist); \
 	(!((dqp)->q_core.d_id))
 
 #define XFS_PURGE_INODE(ip)		\
-	{				\
-	  vmap_t dqvmap;		\
-	  vnode_t *dqvp;		\
-	  dqvp = XFS_ITOV(ip);		\
-	  VMAP(dqvp, dqvmap);		\
-	  VN_RELE(dqvp);		\
-	}
+	IRELE(ip);
 
 #define DQFLAGTO_TYPESTR(d)	(((d)->dq_flags & XFS_DQ_USER) ? "USR" : \
-				 (((d)->dq_flags & XFS_DQ_GROUP) ? "GRP" : "???"))
+				 (((d)->dq_flags & XFS_DQ_GROUP) ? "GRP" : \
+				 (((d)->dq_flags & XFS_DQ_PROJ) ? "PRJ":"???")))
 #define DQFLAGTO_DIRTYSTR(d)	(XFS_DQ_IS_DIRTY(d) ? "DIRTY" : "NOTDIRTY")
 
 #endif	/* __XFS_QUOTA_PRIV_H__ */
diff --git a/fs/xfs/quota/xfs_trans_dquot.c b/fs/xfs/quota/xfs_trans_dquot.c
index 149b2a1..3b99daf 100644
--- a/fs/xfs/quota/xfs_trans_dquot.c
+++ b/fs/xfs/quota/xfs_trans_dquot.c
@@ -187,7 +187,7 @@ xfs_trans_dup_dqinfo(
 /*
  * Wrap around mod_dquot to account for both user and group quotas.
  */
-void
+STATIC void
 xfs_trans_mod_dquot_byino(
 	xfs_trans_t	*tp,
 	xfs_inode_t	*ip,
@@ -207,12 +207,10 @@ xfs_trans_mod_dquot_byino(
 	if (tp->t_dqinfo == NULL)
 		xfs_trans_alloc_dqinfo(tp);
 
-	if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot) {
+	if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot)
 		(void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta);
-	}
-	if (XFS_IS_GQUOTA_ON(mp) && ip->i_gdquot) {
+	if (XFS_IS_OQUOTA_ON(mp) && ip->i_gdquot)
 		(void) xfs_trans_mod_dquot(tp, ip->i_gdquot, field, delta);
-	}
 }
 
 STATIC xfs_dqtrx_t *
@@ -368,7 +366,7 @@ xfs_trans_dqlockedjoin(
  * Unreserve just the reservations done by this transaction.
  * dquot is still left locked at exit.
  */
-void
+STATIC void
 xfs_trans_apply_dquot_deltas(
 	xfs_trans_t		*tp)
 {
@@ -499,7 +497,7 @@ xfs_trans_apply_dquot_deltas(
 			 * Adjust the RT reservation.
 			 */
 			if (qtrx->qt_rtblk_res != 0) {
-				if (qtrx->qt_blk_res != qtrx->qt_blk_res_used) {
+				if (qtrx->qt_rtblk_res != qtrx->qt_rtblk_res_used) {
 					if (qtrx->qt_rtblk_res >
 					    qtrx->qt_rtblk_res_used)
 					       dqp->q_res_rtbcount -= (xfs_qcnt_t)
@@ -532,12 +530,6 @@ xfs_trans_apply_dquot_deltas(
 					    (xfs_qcnt_t)qtrx->qt_icount_delta;
 			}
 
-
-#ifdef QUOTADEBUG
-			if (qtrx->qt_rtblk_res != 0)
-				cmn_err(CE_DEBUG, "RT res %d for 0x%p\n",
-					(int) qtrx->qt_rtblk_res, dqp);
-#endif
 			ASSERT(dqp->q_res_bcount >=
 				INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT));
 			ASSERT(dqp->q_res_icount >=
@@ -638,7 +630,10 @@ xfs_trans_dqresv(
 	int		error;
 	xfs_qcnt_t	hardlimit;
 	xfs_qcnt_t	softlimit;
-	time_t		btimer;
+	time_t		timer;
+	xfs_qwarncnt_t	warns;
+	xfs_qwarncnt_t	warnlimit;
+	xfs_qcnt_t	count;
 	xfs_qcnt_t	*resbcountp;
 	xfs_quotainfo_t	*q = mp->m_quotainfo;
 
@@ -653,7 +648,9 @@ xfs_trans_dqresv(
 		softlimit = INT_GET(dqp->q_core.d_blk_softlimit, ARCH_CONVERT);
 		if (!softlimit)
 			softlimit = q->qi_bsoftlimit;
-		btimer = INT_GET(dqp->q_core.d_btimer, ARCH_CONVERT);
+		timer = INT_GET(dqp->q_core.d_btimer, ARCH_CONVERT);
+		warns = INT_GET(dqp->q_core.d_bwarns, ARCH_CONVERT);
+		warnlimit = XFS_QI_BWARNLIMIT(dqp->q_mount);
 		resbcountp = &dqp->q_res_bcount;
 	} else {
 		ASSERT(flags & XFS_TRANS_DQ_RES_RTBLKS);
@@ -663,7 +660,9 @@ xfs_trans_dqresv(
 		softlimit = INT_GET(dqp->q_core.d_rtb_softlimit, ARCH_CONVERT);
 		if (!softlimit)
 			softlimit = q->qi_rtbsoftlimit;
-		btimer = INT_GET(dqp->q_core.d_rtbtimer, ARCH_CONVERT);
+		timer = INT_GET(dqp->q_core.d_rtbtimer, ARCH_CONVERT);
+		warns = INT_GET(dqp->q_core.d_rtbwarns, ARCH_CONVERT);
+		warnlimit = XFS_QI_RTBWARNLIMIT(dqp->q_mount);
 		resbcountp = &dqp->q_res_rtbcount;
 	}
 	error = 0;
@@ -693,37 +692,36 @@ xfs_trans_dqresv(
 				 * If timer or warnings has expired,
 				 * return EDQUOT
 				 */
-				if ((btimer != 0 && get_seconds() > btimer) ||
-				    (dqp->q_core.d_bwarns &&
-				     INT_GET(dqp->q_core.d_bwarns, ARCH_CONVERT) >=
-				     XFS_QI_BWARNLIMIT(dqp->q_mount))) {
+				if ((timer != 0 && get_seconds() > timer) ||
+				    (warns != 0 && warns >= warnlimit)) {
 					error = EDQUOT;
 					goto error_return;
 				}
 			}
 		}
 		if (ninos > 0) {
-			hardlimit = INT_GET(dqp->q_core.d_ino_hardlimit, ARCH_CONVERT);
+			count = INT_GET(dqp->q_core.d_icount, ARCH_CONVERT);
+			timer = INT_GET(dqp->q_core.d_itimer, ARCH_CONVERT);
+			warns = INT_GET(dqp->q_core.d_iwarns, ARCH_CONVERT);
+			warnlimit = XFS_QI_IWARNLIMIT(dqp->q_mount);
+			hardlimit = INT_GET(dqp->q_core.d_ino_hardlimit,
+						ARCH_CONVERT);
 			if (!hardlimit)
 				hardlimit = q->qi_ihardlimit;
-			softlimit = INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT);
+			softlimit = INT_GET(dqp->q_core.d_ino_softlimit,
+						ARCH_CONVERT);
 			if (!softlimit)
 				softlimit = q->qi_isoftlimit;
-			if (hardlimit > 0ULL &&
-			    INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) >= hardlimit) {
+			if (hardlimit > 0ULL && count >= hardlimit) {
 				error = EDQUOT;
 				goto error_return;
-			} else if (softlimit > 0ULL &&
-				   INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) >= softlimit) {
+			} else if (softlimit > 0ULL && count >= softlimit) {
 				/*
 				 * If timer or warnings has expired,
 				 * return EDQUOT
 				 */
-				if ((dqp->q_core.d_itimer &&
-				     get_seconds() > INT_GET(dqp->q_core.d_itimer, ARCH_CONVERT)) ||
-				    (dqp->q_core.d_iwarns &&
-				     INT_GET(dqp->q_core.d_iwarns, ARCH_CONVERT) >=
-				     XFS_QI_IWARNLIMIT(dqp->q_mount))) {
+				if ((timer != 0 && get_seconds() > timer) ||
+				     (warns != 0 && warns >= warnlimit)) {
 					error = EDQUOT;
 					goto error_return;
 				}
diff --git a/fs/xfs/support/debug.c b/fs/xfs/support/debug.c
index 7d6e1f3..4ed7b69 100644
--- a/fs/xfs/support/debug.c
+++ b/fs/xfs/support/debug.c
@@ -36,7 +36,6 @@
 #include <linux/sched.h>
 #include <linux/kernel.h>
 
-int			doass = 1;
 static char		message[256];	/* keep it off the stack */
 static DEFINE_SPINLOCK(xfs_err_lock);
 
diff --git a/fs/xfs/support/debug.h b/fs/xfs/support/debug.h
index 40b0f4c..c5b9365 100644
--- a/fs/xfs/support/debug.h
+++ b/fs/xfs/support/debug.h
@@ -50,16 +50,11 @@ extern void cmn_err(int, char *, ...);
 #endif
 
 #ifdef DEBUG
-# ifdef lint
-#  define ASSERT(EX)	((void)0) /* avoid "constant in conditional" babble */
-# else
-#  define ASSERT(EX) ((!doass||(EX))?((void)0):assfail(#EX, __FILE__, __LINE__))
-# endif	/* lint */
+# define ASSERT(EX)	((EX) ? ((void)0) : assfail(#EX, __FILE__, __LINE__))
 #else
 # define ASSERT(x)	((void)0)
 #endif
 
-extern int doass;		/* dynamically turn off asserts */
 extern void assfail(char *, char *, int);
 #ifdef DEBUG
 extern unsigned long random(void);
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 36603db..dcfe197 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -59,7 +59,7 @@
 #define	XFSA_FIXUP_BNO_OK	1
 #define	XFSA_FIXUP_CNT_OK	2
 
-int
+STATIC int
 xfs_alloc_search_busy(xfs_trans_t *tp,
 		    xfs_agnumber_t agno,
 		    xfs_agblock_t bno,
@@ -2562,7 +2562,7 @@ xfs_alloc_clear_busy(xfs_trans_t *tp,
 /*
  * returns non-zero if any of (agno,bno):len is in a busy list
  */
-int
+STATIC int
 xfs_alloc_search_busy(xfs_trans_t *tp,
 		    xfs_agnumber_t agno,
 		    xfs_agblock_t bno,
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index ee8b590..a41ad3a 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -71,6 +71,11 @@
  * Provide the external interfaces to manage attribute lists.
  */
 
+#define ATTR_SYSCOUNT	2
+STATIC struct attrnames posix_acl_access;
+STATIC struct attrnames posix_acl_default;
+STATIC struct attrnames *attr_system_names[ATTR_SYSCOUNT];
+
 /*========================================================================
  * Function prototypes for the kernel.
  *========================================================================*/
@@ -83,6 +88,7 @@ STATIC int xfs_attr_shortform_addname(xfs_da_args_t *args);
 /*
  * Internal routines when attribute list is one block.
  */
+STATIC int xfs_attr_leaf_get(xfs_da_args_t *args);
 STATIC int xfs_attr_leaf_addname(xfs_da_args_t *args);
 STATIC int xfs_attr_leaf_removename(xfs_da_args_t *args);
 STATIC int xfs_attr_leaf_list(xfs_attr_list_context_t *context);
@@ -90,6 +96,7 @@ STATIC int xfs_attr_leaf_list(xfs_attr_list_context_t *context);
 /*
  * Internal routines when attribute list is more than one block.
  */
+STATIC int xfs_attr_node_get(xfs_da_args_t *args);
 STATIC int xfs_attr_node_addname(xfs_da_args_t *args);
 STATIC int xfs_attr_node_removename(xfs_da_args_t *args);
 STATIC int xfs_attr_node_list(xfs_attr_list_context_t *context);
@@ -1102,7 +1109,7 @@ xfs_attr_leaf_removename(xfs_da_args_t *args)
  * This leaf block cannot have a "remote" value, we only call this routine
  * if bmap_one_block() says there is only one block (ie: no remote blks).
  */
-int
+STATIC int
 xfs_attr_leaf_get(xfs_da_args_t *args)
 {
 	xfs_dabuf_t *bp;
@@ -1707,7 +1714,7 @@ xfs_attr_refillstate(xfs_da_state_t *state)
  * block, ie: both true Btree attr lists and for single-leaf-blocks with
  * "remote" values taking up more blocks.
  */
-int
+STATIC int
 xfs_attr_node_get(xfs_da_args_t *args)
 {
 	xfs_da_state_t *state;
@@ -2398,7 +2405,7 @@ posix_acl_default_exists(
 	return xfs_acl_vhasacl_default(vp);
 }
 
-struct attrnames posix_acl_access = {
+STATIC struct attrnames posix_acl_access = {
 	.attr_name	= "posix_acl_access",
 	.attr_namelen	= sizeof("posix_acl_access") - 1,
 	.attr_get	= posix_acl_access_get,
@@ -2407,7 +2414,7 @@ struct attrnames posix_acl_access = {
 	.attr_exists	= posix_acl_access_exists,
 };
 
-struct attrnames posix_acl_default = {
+STATIC struct attrnames posix_acl_default = {
 	.attr_name	= "posix_acl_default",
 	.attr_namelen	= sizeof("posix_acl_default") - 1,
 	.attr_get	= posix_acl_default_get,
@@ -2416,7 +2423,7 @@ struct attrnames posix_acl_default = {
 	.attr_exists	= posix_acl_default_exists,
 };
 
-struct attrnames *attr_system_names[] =
+STATIC struct attrnames *attr_system_names[] =
 	{ &posix_acl_access, &posix_acl_default };
 
 
diff --git a/fs/xfs/xfs_attr.h b/fs/xfs/xfs_attr.h
index 67cd0f5..45ab1c5 100644
--- a/fs/xfs/xfs_attr.h
+++ b/fs/xfs/xfs_attr.h
@@ -76,11 +76,6 @@ extern struct attrnames attr_system;
 extern struct attrnames attr_trusted;
 extern struct attrnames *attr_namespaces[ATTR_NAMECOUNT];
 
-#define ATTR_SYSCOUNT	2
-extern struct attrnames posix_acl_access;
-extern struct attrnames posix_acl_default;
-extern struct attrnames *attr_system_names[ATTR_SYSCOUNT];
-
 extern attrnames_t *attr_lookup_namespace(char *, attrnames_t **, int);
 extern int attr_generic_list(struct vnode *, void *, size_t, int, ssize_t *);
 
@@ -184,8 +179,6 @@ int xfs_attr_list(bhv_desc_t *, char *, int, int,
 			 struct attrlist_cursor_kern *, struct cred *);
 int xfs_attr_inactive(struct xfs_inode *dp);
 
-int xfs_attr_node_get(struct xfs_da_args *);
-int xfs_attr_leaf_get(struct xfs_da_args *);
 int xfs_attr_shortform_getvalue(struct xfs_da_args *);
 int xfs_attr_fetch(struct xfs_inode *, char *, int,
 			char *, int *, int, struct cred *);
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index b11256e..1cdd574 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -79,6 +79,8 @@
 /*
  * Routines used for growing the Btree.
  */
+STATIC int xfs_attr_leaf_create(xfs_da_args_t *args, xfs_dablk_t which_block,
+				    xfs_dabuf_t **bpp);
 STATIC int xfs_attr_leaf_add_work(xfs_dabuf_t *leaf_buffer, xfs_da_args_t *args,
 					      int freemap_index);
 STATIC void xfs_attr_leaf_compact(xfs_trans_t *trans, xfs_dabuf_t *leaf_buffer);
@@ -92,6 +94,16 @@ STATIC int xfs_attr_leaf_figure_balance(xfs_da_state_t *state,
 					   int *number_usedbytes_in_blk1);
 
 /*
+ * Routines used for shrinking the Btree.
+ */
+STATIC int xfs_attr_node_inactive(xfs_trans_t **trans, xfs_inode_t *dp,
+				  xfs_dabuf_t *bp, int level);
+STATIC int xfs_attr_leaf_inactive(xfs_trans_t **trans, xfs_inode_t *dp,
+				  xfs_dabuf_t *bp);
+STATIC int xfs_attr_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
+				   xfs_dablk_t blkno, int blkcnt);
+
+/*
  * Utility routines.
  */
 STATIC void xfs_attr_leaf_moveents(xfs_attr_leafblock_t *src_leaf,
@@ -99,6 +111,10 @@ STATIC void xfs_attr_leaf_moveents(xfs_attr_leafblock_t *src_leaf,
 					 xfs_attr_leafblock_t *dst_leaf,
 					 int dst_start, int move_count,
 					 xfs_mount_t *mp);
+STATIC int xfs_attr_leaf_entsize(xfs_attr_leafblock_t *leaf, int index);
+STATIC int xfs_attr_put_listent(xfs_attr_list_context_t *context,
+			     attrnames_t *, char *name, int namelen,
+			     int valuelen);
 
 
 /*========================================================================
@@ -774,7 +790,7 @@ out:
  * Create the initial contents of a leaf attribute list
  * or a leaf in a node attribute list.
  */
-int
+STATIC int
 xfs_attr_leaf_create(xfs_da_args_t *args, xfs_dablk_t blkno, xfs_dabuf_t **bpp)
 {
 	xfs_attr_leafblock_t *leaf;
@@ -2209,7 +2225,7 @@ xfs_attr_leaf_lasthash(xfs_dabuf_t *bp, int *count)
  * Calculate the number of bytes used to store the indicated attribute
  * (whether local or remote only calculate bytes in this block).
  */
-int
+STATIC int
 xfs_attr_leaf_entsize(xfs_attr_leafblock_t *leaf, int index)
 {
 	xfs_attr_leaf_name_local_t *name_loc;
@@ -2380,7 +2396,7 @@ xfs_attr_leaf_list_int(xfs_dabuf_t *bp, xfs_attr_list_context_t *context)
  * we may be reading them directly out of a user buffer.
  */
 /*ARGSUSED*/
-int
+STATIC int
 xfs_attr_put_listent(xfs_attr_list_context_t *context,
 		     attrnames_t *namesp, char *name, int namelen, int valuelen)
 {
@@ -2740,7 +2756,7 @@ xfs_attr_root_inactive(xfs_trans_t **trans, xfs_inode_t *dp)
  * Recurse (gasp!) through the attribute nodes until we find leaves.
  * We're doing a depth-first traversal in order to invalidate everything.
  */
-int
+STATIC int
 xfs_attr_node_inactive(xfs_trans_t **trans, xfs_inode_t *dp, xfs_dabuf_t *bp,
 				   int level)
 {
@@ -2849,7 +2865,7 @@ xfs_attr_node_inactive(xfs_trans_t **trans, xfs_inode_t *dp, xfs_dabuf_t *bp,
  * Note that we must release the lock on the buffer so that we are not
  * caught holding something that the logging code wants to flush to disk.
  */
-int
+STATIC int
 xfs_attr_leaf_inactive(xfs_trans_t **trans, xfs_inode_t *dp, xfs_dabuf_t *bp)
 {
 	xfs_attr_leafblock_t *leaf;
@@ -2934,7 +2950,7 @@ xfs_attr_leaf_inactive(xfs_trans_t **trans, xfs_inode_t *dp, xfs_dabuf_t *bp)
  * Look at all the extents for this logical region,
  * invalidate any buffers that are incore/in transactions.
  */
-int
+STATIC int
 xfs_attr_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
 				    xfs_dablk_t blkno, int blkcnt)
 {
diff --git a/fs/xfs/xfs_attr_leaf.h b/fs/xfs/xfs_attr_leaf.h
index b1480e0..0a4cfad 100644
--- a/fs/xfs/xfs_attr_leaf.h
+++ b/fs/xfs/xfs_attr_leaf.h
@@ -261,8 +261,6 @@ int	xfs_attr_leaf_flipflags(xfs_da_args_t *args);
 /*
  * Routines used for growing the Btree.
  */
-int	xfs_attr_leaf_create(struct xfs_da_args *args, xfs_dablk_t which_block,
-				    struct xfs_dabuf **bpp);
 int	xfs_attr_leaf_split(struct xfs_da_state *state,
 				   struct xfs_da_state_blk *oldblk,
 				   struct xfs_da_state_blk *newblk);
@@ -284,12 +282,6 @@ void	xfs_attr_leaf_unbalance(struct xfs_da_state *state,
 				       struct xfs_da_state_blk *drop_blk,
 				       struct xfs_da_state_blk *save_blk);
 int	xfs_attr_root_inactive(struct xfs_trans **trans, struct xfs_inode *dp);
-int	xfs_attr_node_inactive(struct xfs_trans **trans, struct xfs_inode *dp,
-				      struct xfs_dabuf *bp, int level);
-int	xfs_attr_leaf_inactive(struct xfs_trans **trans, struct xfs_inode *dp,
-				      struct xfs_dabuf *bp);
-int	xfs_attr_leaf_freextent(struct xfs_trans **trans, struct xfs_inode *dp,
-				       xfs_dablk_t blkno, int blkcnt);
 
 /*
  * Utility routines.
@@ -299,10 +291,6 @@ int	xfs_attr_leaf_order(struct xfs_dabuf *leaf1_bp,
 				   struct xfs_dabuf *leaf2_bp);
 int	xfs_attr_leaf_newentsize(struct xfs_da_args *args, int blocksize,
 					int *local);
-int	xfs_attr_leaf_entsize(struct xfs_attr_leafblock *leaf, int index);
-int	xfs_attr_put_listent(struct xfs_attr_list_context *context,
-			     struct attrnames *, char *name, int namelen,
-			     int valuelen);
 int	xfs_attr_rolltrans(struct xfs_trans **transp, struct xfs_inode *dp);
 
 #endif	/* __XFS_ATTR_LEAF_H__ */
diff --git a/fs/xfs/xfs_bit.c b/fs/xfs/xfs_bit.c
index a20a6c3..76c9ad3 100644
--- a/fs/xfs/xfs_bit.c
+++ b/fs/xfs/xfs_bit.c
@@ -45,7 +45,7 @@
 /*
  * Index of high bit number in byte, -1 for none set, 0..7 otherwise.
  */
-const char xfs_highbit[256] = {
+STATIC const char xfs_highbit[256] = {
        -1, 0, 1, 1, 2, 2, 2, 2,			/* 00 .. 07 */
 	3, 3, 3, 3, 3, 3, 3, 3,			/* 08 .. 0f */
 	4, 4, 4, 4, 4, 4, 4, 4,			/* 10 .. 17 */
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index de31624..6f5d283 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -301,6 +301,19 @@ xfs_bmap_search_extents(
 	xfs_bmbt_irec_t	*gotp,		/* out: extent entry found */
 	xfs_bmbt_irec_t	*prevp);	/* out: previous extent entry found */
 
+/*
+ * Check the last inode extent to determine whether this allocation will result
+ * in blocks being allocated at the end of the file. When we allocate new data
+ * blocks at the end of the file which do not start at the previous data block,
+ * we will try to align the new blocks at stripe unit boundaries.
+ */
+STATIC int				/* error */
+xfs_bmap_isaeof(
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_fileoff_t   off,		/* file offset in fsblocks */
+	int             whichfork,	/* data or attribute fork */
+	char		*aeof);		/* return value */
+
 #ifdef XFS_BMAP_TRACE
 /*
  * Add a bmap trace buffer entry.  Base routine for the others.
@@ -4532,18 +4545,17 @@ xfs_bmapi(
 	xfs_extlen_t	alen;		/* allocated extent length */
 	xfs_fileoff_t	aoff;		/* allocated file offset */
 	xfs_bmalloca_t	bma;		/* args for xfs_bmap_alloc */
-	char		contig;		/* allocation must be one extent */
 	xfs_btree_cur_t	*cur;		/* bmap btree cursor */
-	char		delay;		/* this request is for delayed alloc */
 	xfs_fileoff_t	end;		/* end of mapped file region */
 	int		eof;		/* we've hit the end of extent list */
+	char		contig;		/* allocation must be one extent */
+	char		delay;		/* this request is for delayed alloc */
+	char		exact;		/* don't do all of wasdelayed extent */
 	xfs_bmbt_rec_t	*ep;		/* extent list entry pointer */
 	int		error;		/* error return */
-	char		exact;		/* don't do all of wasdelayed extent */
 	xfs_bmbt_irec_t	got;		/* current extent list record */
 	xfs_ifork_t	*ifp;		/* inode fork pointer */
 	xfs_extlen_t	indlen;		/* indirect blocks length */
-	char		inhole;		/* current location is hole in file */
 	xfs_extnum_t	lastx;		/* last useful extent number */
 	int		logflags;	/* flags for transaction logging */
 	xfs_extlen_t	minleft;	/* min blocks left after allocation */
@@ -4554,13 +4566,15 @@ xfs_bmapi(
 	xfs_extnum_t	nextents;	/* number of extents in file */
 	xfs_fileoff_t	obno;		/* old block number (offset) */
 	xfs_bmbt_irec_t	prev;		/* previous extent list record */
-	char		stateless;	/* ignore state flag set */
 	int		tmp_logflags;	/* temp flags holder */
+	int		whichfork;	/* data or attr fork */
+	char		inhole;		/* current location is hole in file */
+	char		stateless;	/* ignore state flag set */
 	char		trim;		/* output trimmed to match range */
 	char		userdata;	/* allocating non-metadata */
 	char		wasdelay;	/* old extent was delayed */
-	int		whichfork;	/* data or attr fork */
 	char		wr;		/* this is a write request */
+	char		rt;		/* this is a realtime file */
 	char		rsvd;		/* OK to allocate reserved blocks */
 #ifdef DEBUG
 	xfs_fileoff_t	orig_bno;	/* original block number value */
@@ -4590,6 +4604,7 @@ xfs_bmapi(
 	}
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
+	rt = XFS_IS_REALTIME_INODE(ip);
 	ifp = XFS_IFORK_PTR(ip, whichfork);
 	ASSERT(ifp->if_ext_max ==
 	       XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
@@ -4694,9 +4709,16 @@ xfs_bmapi(
 			}
 			minlen = contig ? alen : 1;
 			if (delay) {
-				indlen = (xfs_extlen_t)
-					xfs_bmap_worst_indlen(ip, alen);
-				ASSERT(indlen > 0);
+				xfs_extlen_t	extsz = 0;
+
+				/* Figure out the extent size, adjust alen */
+				if (rt) {
+					if (!(extsz = ip->i_d.di_extsize))
+						extsz = mp->m_sb.sb_rextsize;
+					alen = roundup(alen, extsz);
+					extsz = alen / mp->m_sb.sb_rextsize;
+				}
+
 				/*
 				 * Make a transaction-less quota reservation for
 				 * delayed allocation blocks. This number gets
@@ -4704,8 +4726,10 @@ xfs_bmapi(
 				 * We return EDQUOT if we haven't allocated
 				 * blks already inside this loop;
 				 */
-				if (XFS_TRANS_RESERVE_BLKQUOTA(
-						mp, NULL, ip, (long)alen)) {
+				if (XFS_TRANS_RESERVE_QUOTA_NBLKS(
+						mp, NULL, ip, (long)alen, 0,
+						rt ? XFS_QMOPT_RES_RTBLKS :
+						     XFS_QMOPT_RES_REGBLKS)) {
 					if (n == 0) {
 						*nmap = 0;
 						ASSERT(cur == NULL);
@@ -4718,40 +4742,34 @@ xfs_bmapi(
 				 * Split changing sb for alen and indlen since
 				 * they could be coming from different places.
 				 */
-				if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) {
-					xfs_extlen_t	extsz;
-					xfs_extlen_t	ralen;
-					if (!(extsz = ip->i_d.di_extsize))
-						extsz = mp->m_sb.sb_rextsize;
-					ralen = roundup(alen, extsz);
-					ralen = ralen / mp->m_sb.sb_rextsize;
-					if (xfs_mod_incore_sb(mp,
-						XFS_SBS_FREXTENTS,
-						-(ralen), rsvd)) {
-						if (XFS_IS_QUOTA_ON(ip->i_mount))
-							XFS_TRANS_UNRESERVE_BLKQUOTA(
-						     		mp, NULL, ip,
-								(long)alen);
-						break;
-					}
-				} else {
-					if (xfs_mod_incore_sb(mp,
-							      XFS_SBS_FDBLOCKS,
-							      -(alen), rsvd)) {
-						if (XFS_IS_QUOTA_ON(ip->i_mount))
-							XFS_TRANS_UNRESERVE_BLKQUOTA(
-								mp, NULL, ip,
-								(long)alen);
-						break;
-					}
-				}
+				indlen = (xfs_extlen_t)
+					xfs_bmap_worst_indlen(ip, alen);
+				ASSERT(indlen > 0);
 
-				if (xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS,
-						-(indlen), rsvd)) {
-					XFS_TRANS_UNRESERVE_BLKQUOTA(
-						mp, NULL, ip, (long)alen);
+				if (rt)
+					error = xfs_mod_incore_sb(mp,
+							XFS_SBS_FREXTENTS,
+							-(extsz), rsvd);
+				else
+					error = xfs_mod_incore_sb(mp,
+							XFS_SBS_FDBLOCKS,
+							-(alen), rsvd);
+				if (!error)
+					error = xfs_mod_incore_sb(mp,
+							XFS_SBS_FDBLOCKS,
+							-(indlen), rsvd);
+
+				if (error) {
+					if (XFS_IS_QUOTA_ON(ip->i_mount))
+						/* unreserve the blocks now */
+						XFS_TRANS_UNRESERVE_QUOTA_NBLKS(
+							mp, NULL, ip,
+							(long)alen, 0, rt ?
+							XFS_QMOPT_RES_RTBLKS :
+							XFS_QMOPT_RES_REGBLKS);
 					break;
 				}
+
 				ip->i_delayed_blks += alen;
 				abno = NULLSTARTBLOCK(indlen);
 			} else {
@@ -5376,13 +5394,24 @@ xfs_bunmapi(
 		}
 		if (wasdel) {
 			ASSERT(STARTBLOCKVAL(del.br_startblock) > 0);
-			xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS,
-				(int)del.br_blockcount, rsvd);
-			/* Unreserve our quota space */
-			XFS_TRANS_RESERVE_QUOTA_NBLKS(
-				mp, NULL, ip, -((long)del.br_blockcount), 0,
-				isrt ?	XFS_QMOPT_RES_RTBLKS :
+			/* Update realtim/data freespace, unreserve quota */
+			if (isrt) {
+				xfs_filblks_t rtexts;
+
+				rtexts = XFS_FSB_TO_B(mp, del.br_blockcount);
+				do_div(rtexts, mp->m_sb.sb_rextsize);
+				xfs_mod_incore_sb(mp, XFS_SBS_FREXTENTS,
+						(int)rtexts, rsvd);
+				XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, NULL, ip,
+					-((long)del.br_blockcount), 0,
+					XFS_QMOPT_RES_RTBLKS);
+			} else {
+				xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS,
+						(int)del.br_blockcount, rsvd);
+				XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, NULL, ip,
+					-((long)del.br_blockcount), 0,
 					XFS_QMOPT_RES_REGBLKS);
+			}
 			ip->i_delayed_blks -= del.br_blockcount;
 			if (cur)
 				cur->bc_private.b.flags |=
@@ -5714,7 +5743,7 @@ unlock_and_return:
  * blocks at the end of the file which do not start at the previous data block,
  * we will try to align the new blocks at stripe unit boundaries.
  */
-int					/* error */
+STATIC int				/* error */
 xfs_bmap_isaeof(
 	xfs_inode_t	*ip,		/* incore inode pointer */
 	xfs_fileoff_t   off,		/* file offset in fsblocks */
diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h
index f1bc22f..e6d22ec 100644
--- a/fs/xfs/xfs_bmap.h
+++ b/fs/xfs/xfs_bmap.h
@@ -332,19 +332,6 @@ xfs_getbmap(
 	int			iflags);	/* interface flags */
 
 /*
- * Check the last inode extent to determine whether this allocation will result
- * in blocks being allocated at the end of the file. When we allocate new data
- * blocks at the end of the file which do not start at the previous data block,
- * we will try to align the new blocks at stripe unit boundaries.
- */
-int
-xfs_bmap_isaeof(
-	struct xfs_inode	*ip,
-	xfs_fileoff_t		off,
-	int			whichfork,
-	char			*aeof);
-
-/*
  * Check if the endoff is outside the last extent. If so the caller will grow
  * the allocation to a stripe unit boundary
  */
diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c
index 163305a..09c4135 100644
--- a/fs/xfs/xfs_bmap_btree.c
+++ b/fs/xfs/xfs_bmap_btree.c
@@ -2331,20 +2331,6 @@ xfs_bmbt_lookup_ge(
 	return xfs_bmbt_lookup(cur, XFS_LOOKUP_GE, stat);
 }
 
-int					/* error */
-xfs_bmbt_lookup_le(
-	xfs_btree_cur_t	*cur,
-	xfs_fileoff_t	off,
-	xfs_fsblock_t	bno,
-	xfs_filblks_t	len,
-	int		*stat)		/* success/failure */
-{
-	cur->bc_rec.b.br_startoff = off;
-	cur->bc_rec.b.br_startblock = bno;
-	cur->bc_rec.b.br_blockcount = len;
-	return xfs_bmbt_lookup(cur, XFS_LOOKUP_LE, stat);
-}
-
 /*
  * Give the bmap btree a new root block.  Copy the old broot contents
  * down into a real block and make the broot point to it.
diff --git a/fs/xfs/xfs_bmap_btree.h b/fs/xfs/xfs_bmap_btree.h
index 843ff12..0a40cf1 100644
--- a/fs/xfs/xfs_bmap_btree.h
+++ b/fs/xfs/xfs_bmap_btree.h
@@ -580,14 +580,6 @@ xfs_bmbt_lookup_ge(
 	xfs_filblks_t,
 	int *);
 
-int
-xfs_bmbt_lookup_le(
-	struct xfs_btree_cur *,
-	xfs_fileoff_t,
-	xfs_fsblock_t,
-	xfs_filblks_t,
-	int *);
-
 /*
  * Give the bmap btree a new root block.  Copy the old broot contents
  * down into a real block and make the broot point to it.
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index 9dd22dd..0cc63d6 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -90,6 +90,16 @@ xfs_btree_maxrecs(
  */
 
 /*
+ * Retrieve the block pointer from the cursor at the given level.
+ * This may be a bmap btree root or from a buffer.
+ */
+STATIC xfs_btree_block_t *			/* generic btree block pointer */
+xfs_btree_get_block(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level in btree */
+	struct xfs_buf		**bpp);	/* buffer containing the block */
+
+/*
  * Checking routine: return maxrecs for the block.
  */
 STATIC int				/* number of records fitting in block */
@@ -497,7 +507,7 @@ xfs_btree_firstrec(
  * Retrieve the block pointer from the cursor at the given level.
  * This may be a bmap btree root or from a buffer.
  */
-xfs_btree_block_t *			/* generic btree block pointer */
+STATIC xfs_btree_block_t *		/* generic btree block pointer */
 xfs_btree_get_block(
 	xfs_btree_cur_t		*cur,	/* btree cursor */
 	int			level,	/* level in btree */
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index 93872bb..09b4e15 100644
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -325,16 +325,6 @@ xfs_btree_firstrec(
 	int			level);	/* level to change */
 
 /*
- * Retrieve the block pointer from the cursor at the given level.
- * This may be a bmap btree root or from a buffer.
- */
-xfs_btree_block_t *			/* generic btree block pointer */
-xfs_btree_get_block(
-	xfs_btree_cur_t		*cur,	/* btree cursor */
-	int			level,	/* level in btree */
-	struct xfs_buf		**bpp);	/* buffer containing the block */
-
-/*
  * Get a buffer for the block, return it with no data read.
  * Long-form addressing.
  */
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 9ab0039..30b8285 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -172,7 +172,7 @@ STATIC void	xfs_buf_do_callbacks(xfs_buf_t *bp, xfs_log_item_t *lip);
  *
  * If the XFS_BLI_STALE flag has been set, then log nothing.
  */
-uint
+STATIC uint
 xfs_buf_item_size(
 	xfs_buf_log_item_t	*bip)
 {
@@ -240,7 +240,7 @@ xfs_buf_item_size(
  * format structure, and the rest point to contiguous chunks
  * within the buffer.
  */
-void
+STATIC void
 xfs_buf_item_format(
 	xfs_buf_log_item_t	*bip,
 	xfs_log_iovec_t		*log_vector)
@@ -365,7 +365,7 @@ xfs_buf_item_format(
  * item in memory so it cannot be written out.  Simply call bpin()
  * on the buffer to do this.
  */
-void
+STATIC void
 xfs_buf_item_pin(
 	xfs_buf_log_item_t	*bip)
 {
@@ -391,7 +391,7 @@ xfs_buf_item_pin(
  * If the XFS_BLI_STALE flag is set and we are the last reference,
  * then free up the buf log item and unlock the buffer.
  */
-void
+STATIC void
 xfs_buf_item_unpin(
 	xfs_buf_log_item_t	*bip,
 	int			stale)
@@ -446,7 +446,7 @@ xfs_buf_item_unpin(
  * so we need to free the item's descriptor (that points to the item)
  * in the transaction.
  */
-void
+STATIC void
 xfs_buf_item_unpin_remove(
 	xfs_buf_log_item_t	*bip,
 	xfs_trans_t		*tp)
@@ -493,7 +493,7 @@ xfs_buf_item_unpin_remove(
  * the lock right away, return 0.  If we can get the lock, pull the
  * buffer from the free list, mark it busy, and return 1.
  */
-uint
+STATIC uint
 xfs_buf_item_trylock(
 	xfs_buf_log_item_t	*bip)
 {
@@ -537,7 +537,7 @@ xfs_buf_item_trylock(
  * This is for support of xfs_trans_bhold(). Make sure the
  * XFS_BLI_HOLD field is cleared if we don't free the item.
  */
-void
+STATIC void
 xfs_buf_item_unlock(
 	xfs_buf_log_item_t	*bip)
 {
@@ -635,7 +635,7 @@ xfs_buf_item_unlock(
  * by returning the original lsn of that transaction here rather than
  * the current one.
  */
-xfs_lsn_t
+STATIC xfs_lsn_t
 xfs_buf_item_committed(
 	xfs_buf_log_item_t	*bip,
 	xfs_lsn_t		lsn)
@@ -654,7 +654,7 @@ xfs_buf_item_committed(
  * and have aborted this transaction, we'll trap this buffer when it tries to
  * get written out.
  */
-void
+STATIC void
 xfs_buf_item_abort(
 	xfs_buf_log_item_t	*bip)
 {
@@ -674,7 +674,7 @@ xfs_buf_item_abort(
  * B_DELWRI set, then get it going out to disk with a call to bawrite().
  * If not, then just release the buffer.
  */
-void
+STATIC void
 xfs_buf_item_push(
 	xfs_buf_log_item_t	*bip)
 {
@@ -693,7 +693,7 @@ xfs_buf_item_push(
 }
 
 /* ARGSUSED */
-void
+STATIC void
 xfs_buf_item_committing(xfs_buf_log_item_t *bip, xfs_lsn_t commit_lsn)
 {
 }
@@ -701,7 +701,7 @@ xfs_buf_item_committing(xfs_buf_log_item_t *bip, xfs_lsn_t commit_lsn)
 /*
  * This is the ops vector shared by all buf log items.
  */
-struct xfs_item_ops xfs_buf_item_ops = {
+STATIC struct xfs_item_ops xfs_buf_item_ops = {
 	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_buf_item_size,
 	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
 					xfs_buf_item_format,
diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h
index 5f1b0c9..01aed5f 100644
--- a/fs/xfs/xfs_buf_item.h
+++ b/fs/xfs/xfs_buf_item.h
@@ -80,7 +80,7 @@ typedef struct xfs_buf_log_format_t {
  * user or group dquots and may require special recovery handling.
  */
 #define	XFS_BLI_UDQUOT_BUF	0x4
-/* #define XFS_BLI_PDQUOT_BUF	0x8 */
+#define XFS_BLI_PDQUOT_BUF	0x8
 #define	XFS_BLI_GDQUOT_BUF	0x10
 
 #define	XFS_BLI_CHUNK		128
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index d7fe288..8b792dd 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -113,7 +113,10 @@ STATIC void xfs_da_node_unbalance(xfs_da_state_t *state,
 STATIC uint	xfs_da_node_lasthash(xfs_dabuf_t *bp, int *count);
 STATIC int	xfs_da_node_order(xfs_dabuf_t *node1_bp, xfs_dabuf_t *node2_bp);
 STATIC xfs_dabuf_t *xfs_da_buf_make(int nbuf, xfs_buf_t **bps, inst_t *ra);
-
+STATIC int	xfs_da_blk_unlink(xfs_da_state_t *state,
+				  xfs_da_state_blk_t *drop_blk,
+				  xfs_da_state_blk_t *save_blk);
+STATIC void	xfs_da_state_kill_altpath(xfs_da_state_t *state);
 
 /*========================================================================
  * Routines used for growing the Btree.
@@ -1424,7 +1427,7 @@ xfs_da_node_lasthash(xfs_dabuf_t *bp, int *count)
 /*
  * Unlink a block from a doubly linked list of blocks.
  */
-int							/* error */
+STATIC int						/* error */
 xfs_da_blk_unlink(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
 				 xfs_da_state_blk_t *save_blk)
 {
@@ -2381,7 +2384,7 @@ xfs_da_state_alloc(void)
 /*
  * Kill the altpath contents of a da-state structure.
  */
-void
+STATIC void
 xfs_da_state_kill_altpath(xfs_da_state_t *state)
 {
 	int	i;
diff --git a/fs/xfs/xfs_da_btree.h b/fs/xfs/xfs_da_btree.h
index 9fc699d..3a9b9e8 100644
--- a/fs/xfs/xfs_da_btree.h
+++ b/fs/xfs/xfs_da_btree.h
@@ -296,8 +296,6 @@ int	xfs_da_path_shift(xfs_da_state_t *state, xfs_da_state_path_t *path,
 /*
  * Utility routines.
  */
-int	xfs_da_blk_unlink(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
-					 xfs_da_state_blk_t *save_blk);
 int	xfs_da_blk_link(xfs_da_state_t *state, xfs_da_state_blk_t *old_blk,
 				       xfs_da_state_blk_t *new_blk);
 
@@ -320,7 +318,6 @@ uint xfs_da_hashname(uchar_t *name_string, int name_length);
 uint xfs_da_log2_roundup(uint i);
 xfs_da_state_t *xfs_da_state_alloc(void);
 void xfs_da_state_free(xfs_da_state_t *state);
-void xfs_da_state_kill_altpath(xfs_da_state_t *state);
 
 void xfs_da_buf_done(xfs_dabuf_t *dabuf);
 void xfs_da_log_buf(struct xfs_trans *tp, xfs_dabuf_t *dabuf, uint first,
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index 63abdc2..681be5c 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -180,9 +180,10 @@ xfs_swapext(
 		goto error0;
 	}
 
-	if (VN_CACHED(tvp) != 0)
-		xfs_inval_cached_pages(XFS_ITOV(tip), &(tip->i_iocore),
-						(xfs_off_t)0, 0, 0);
+	if (VN_CACHED(tvp) != 0) {
+		xfs_inval_cached_trace(&tip->i_iocore, 0, -1, 0, -1);
+		VOP_FLUSHINVAL_PAGES(tvp, 0, -1, FI_REMAPF_LOCKED);
+	}
 
 	/* Verify O_DIRECT for ftmp */
 	if (VN_CACHED(tvp) != 0) {
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index db9887a..a0aa0e4 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -304,7 +304,7 @@ xfs_dir2_data_freeinsert(
 /*
  * Remove a bestfree entry from the table.
  */
-void
+STATIC void
 xfs_dir2_data_freeremove(
 	xfs_dir2_data_t		*d,		/* data block pointer */
 	xfs_dir2_data_free_t	*dfp,		/* bestfree entry pointer */
diff --git a/fs/xfs/xfs_dir2_data.h b/fs/xfs/xfs_dir2_data.h
index 3f02294..476cac9 100644
--- a/fs/xfs/xfs_dir2_data.h
+++ b/fs/xfs/xfs_dir2_data.h
@@ -193,10 +193,6 @@ extern xfs_dir2_data_free_t *
 				 xfs_dir2_data_unused_t *dup, int *loghead);
 
 extern void
-	xfs_dir2_data_freeremove(xfs_dir2_data_t *d,
-				 xfs_dir2_data_free_t *dfp, int *loghead);
-
-extern void
 	xfs_dir2_data_freescan(struct xfs_mount *mp, xfs_dir2_data_t *d,
 			       int *loghead, char *aendp);
 
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index 262d1e8..056f528 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -77,6 +77,10 @@ static void xfs_dir2_leaf_check(xfs_inode_t *dp, xfs_dabuf_t *bp);
 #endif
 static int xfs_dir2_leaf_lookup_int(xfs_da_args_t *args, xfs_dabuf_t **lbpp,
 				    int *indexp, xfs_dabuf_t **dbpp);
+static void xfs_dir2_leaf_log_bests(struct xfs_trans *tp, struct xfs_dabuf *bp,
+				    int first, int last);
+static void xfs_dir2_leaf_log_tail(struct xfs_trans *tp, struct xfs_dabuf *bp);
+
 
 /*
  * Convert a block form directory to a leaf form directory.
@@ -1214,7 +1218,7 @@ xfs_dir2_leaf_init(
 /*
  * Log the bests entries indicated from a leaf1 block.
  */
-void
+static void
 xfs_dir2_leaf_log_bests(
 	xfs_trans_t		*tp,		/* transaction pointer */
 	xfs_dabuf_t		*bp,		/* leaf buffer */
@@ -1278,7 +1282,7 @@ xfs_dir2_leaf_log_header(
 /*
  * Log the tail of the leaf1 block.
  */
-void
+STATIC void
 xfs_dir2_leaf_log_tail(
 	xfs_trans_t		*tp,		/* transaction pointer */
 	xfs_dabuf_t		*bp)		/* leaf buffer */
diff --git a/fs/xfs/xfs_dir2_leaf.h b/fs/xfs/xfs_dir2_leaf.h
index 7f20eee..3303cd6 100644
--- a/fs/xfs/xfs_dir2_leaf.h
+++ b/fs/xfs/xfs_dir2_leaf.h
@@ -330,15 +330,8 @@ extern void
 			       int first, int last);
 
 extern void
-	xfs_dir2_leaf_log_bests(struct xfs_trans *tp, struct xfs_dabuf *bp,
-				int first, int last);
-
-extern void
 	xfs_dir2_leaf_log_header(struct xfs_trans *tp, struct xfs_dabuf *bp);
 
-extern void
-	xfs_dir2_leaf_log_tail(struct xfs_trans *tp, struct xfs_dabuf *bp);
-
 extern int
 	xfs_dir2_leaf_lookup(struct xfs_da_args *args);
 
diff --git a/fs/xfs/xfs_dir_leaf.c b/fs/xfs/xfs_dir_leaf.c
index 617018d..c2ea617 100644
--- a/fs/xfs/xfs_dir_leaf.c
+++ b/fs/xfs/xfs_dir_leaf.c
@@ -91,6 +91,10 @@ STATIC int xfs_dir_leaf_figure_balance(xfs_da_state_t *state,
 					  int *number_entries_in_blk1,
 					  int *number_namebytes_in_blk1);
 
+STATIC int xfs_dir_leaf_create(struct xfs_da_args *args,
+				xfs_dablk_t which_block,
+				struct xfs_dabuf **bpp);
+
 /*
  * Utility routines.
  */
@@ -781,7 +785,7 @@ xfs_dir_leaf_to_node(xfs_da_args_t *args)
  * Create the initial contents of a leaf directory
  * or a leaf in a node directory.
  */
-int
+STATIC int
 xfs_dir_leaf_create(xfs_da_args_t *args, xfs_dablk_t blkno, xfs_dabuf_t **bpp)
 {
 	xfs_dir_leafblock_t *leaf;
diff --git a/fs/xfs/xfs_dir_leaf.h b/fs/xfs/xfs_dir_leaf.h
index 00d68d3..dd423ce 100644
--- a/fs/xfs/xfs_dir_leaf.h
+++ b/fs/xfs/xfs_dir_leaf.h
@@ -202,8 +202,6 @@ int xfs_dir_leaf_to_shortform(struct xfs_da_args *args);
 /*
  * Routines used for growing the Btree.
  */
-int	xfs_dir_leaf_create(struct xfs_da_args *args, xfs_dablk_t which_block,
-				   struct xfs_dabuf **bpp);
 int	xfs_dir_leaf_split(struct xfs_da_state *state,
 				  struct xfs_da_state_blk *oldblk,
 				  struct xfs_da_state_blk *newblk);
diff --git a/fs/xfs/xfs_dmapi.h b/fs/xfs/xfs_dmapi.h
index 55ae3e6..55c17ad 100644
--- a/fs/xfs/xfs_dmapi.h
+++ b/fs/xfs/xfs_dmapi.h
@@ -166,27 +166,32 @@ typedef enum {
 #define DM_FLAGS_NDELAY		0x001	/* return EAGAIN after dm_pending() */
 #define DM_FLAGS_UNWANTED	0x002	/* event not in fsys dm_eventset_t */
 #define DM_FLAGS_ISEM		0x004	/* thread holds i_sem */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,21)
-/* i_alloc_sem was added in 2.4.22-pre1 */
 #define DM_FLAGS_IALLOCSEM_RD	0x010	/* thread holds i_alloc_sem rd */
 #define DM_FLAGS_IALLOCSEM_WR	0x020	/* thread holds i_alloc_sem wr */
-#endif
-#endif
 
 /*
  *	Based on IO_ISDIRECT, decide which i_ flag is set.
  */
-#ifdef DM_FLAGS_IALLOCSEM_RD
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0)
+#define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
+			      DM_FLAGS_ISEM : 0)
+#define DM_SEM_FLAG_WR	(DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_ISEM)
+#endif
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)) && \
+    (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,22))
 #define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
 			      DM_FLAGS_IALLOCSEM_RD : DM_FLAGS_ISEM)
 #define DM_SEM_FLAG_WR	(DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_ISEM)
-#else
+#endif
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,21)
 #define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
 			      0 : DM_FLAGS_ISEM)
 #define DM_SEM_FLAG_WR	(DM_FLAGS_ISEM)
 #endif
 
+
 /*
  *	Macros to turn caller specified delay/block flags into
  *	dm_send_xxxx_event flag DM_FLAGS_NDELAY.
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index bbe1dea..dcd3fdd 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -280,7 +280,7 @@ xfs_error_report(
 	}
 }
 
-void
+STATIC void
 xfs_hex_dump(void *p, int length)
 {
 	__uint8_t *uip = (__uint8_t*)p;
diff --git a/fs/xfs/xfs_error.h b/fs/xfs/xfs_error.h
index 6bc0535..52ee2b9 100644
--- a/fs/xfs/xfs_error.h
+++ b/fs/xfs/xfs_error.h
@@ -73,9 +73,6 @@ xfs_corruption_error(
 	int		linenum,
 	inst_t		*ra);
 
-extern void
-xfs_hex_dump(void *p, int length);
-
 #define	XFS_ERROR_REPORT(e, lvl, mp)	\
 	xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
 #define	XFS_CORRUPTION_ERROR(e, lvl, mp, mem)	\
diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
index 5eafd5b..db7cbd1 100644
--- a/fs/xfs/xfs_extfree_item.c
+++ b/fs/xfs/xfs_extfree_item.c
@@ -59,6 +59,18 @@ STATIC void	xfs_efi_item_abort(xfs_efi_log_item_t *);
 STATIC void	xfs_efd_item_abort(xfs_efd_log_item_t *);
 
 
+void
+xfs_efi_item_free(xfs_efi_log_item_t *efip)
+{
+	int nexts = efip->efi_format.efi_nextents;
+
+	if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
+		kmem_free(efip, sizeof(xfs_efi_log_item_t) +
+				(nexts - 1) * sizeof(xfs_extent_t));
+	} else {
+		kmem_zone_free(xfs_efi_zone, efip);
+	}
+}
 
 /*
  * This returns the number of iovecs needed to log the given efi item.
@@ -120,8 +132,6 @@ xfs_efi_item_pin(xfs_efi_log_item_t *efip)
 STATIC void
 xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale)
 {
-	int		nexts;
-	int		size;
 	xfs_mount_t	*mp;
 	SPLDECL(s);
 
@@ -132,21 +142,11 @@ xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale)
 		 * xfs_trans_delete_ail() drops the AIL lock.
 		 */
 		xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
-
-		nexts = efip->efi_format.efi_nextents;
-		if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
-			size = sizeof(xfs_efi_log_item_t);
-			size += (nexts - 1) * sizeof(xfs_extent_t);
-			kmem_free(efip, size);
-		} else {
-			kmem_zone_free(xfs_efi_zone, efip);
-		}
+		xfs_efi_item_free(efip);
 	} else {
 		efip->efi_flags |= XFS_EFI_COMMITTED;
 		AIL_UNLOCK(mp, s);
 	}
-
-	return;
 }
 
 /*
@@ -159,8 +159,6 @@ xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale)
 STATIC void
 xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
 {
-	int		nexts;
-	int		size;
 	xfs_mount_t	*mp;
 	xfs_log_item_desc_t	*lidp;
 	SPLDECL(s);
@@ -178,23 +176,11 @@ xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
 		 * xfs_trans_delete_ail() drops the AIL lock.
 		 */
 		xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
-		/*
-		 * now free the item itself
-		 */
-		nexts = efip->efi_format.efi_nextents;
-		if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
-			size = sizeof(xfs_efi_log_item_t);
-			size += (nexts - 1) * sizeof(xfs_extent_t);
-			kmem_free(efip, size);
-		} else {
-			kmem_zone_free(xfs_efi_zone, efip);
-		}
+		xfs_efi_item_free(efip);
 	} else {
 		efip->efi_flags |= XFS_EFI_COMMITTED;
 		AIL_UNLOCK(mp, s);
 	}
-
-	return;
 }
 
 /*
@@ -245,18 +231,7 @@ xfs_efi_item_committed(xfs_efi_log_item_t *efip, xfs_lsn_t lsn)
 STATIC void
 xfs_efi_item_abort(xfs_efi_log_item_t *efip)
 {
-	int	nexts;
-	int	size;
-
-	nexts = efip->efi_format.efi_nextents;
-	if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
-		size = sizeof(xfs_efi_log_item_t);
-		size += (nexts - 1) * sizeof(xfs_extent_t);
-		kmem_free(efip, size);
-	} else {
-		kmem_zone_free(xfs_efi_zone, efip);
-	}
-	return;
+	xfs_efi_item_free(efip);
 }
 
 /*
@@ -288,7 +263,7 @@ xfs_efi_item_committing(xfs_efi_log_item_t *efip, xfs_lsn_t lsn)
 /*
  * This is the ops vector shared by all efi log items.
  */
-struct xfs_item_ops xfs_efi_item_ops = {
+STATIC struct xfs_item_ops xfs_efi_item_ops = {
 	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_efi_item_size,
 	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
 					xfs_efi_item_format,
@@ -355,8 +330,6 @@ xfs_efi_release(xfs_efi_log_item_t	*efip,
 {
 	xfs_mount_t	*mp;
 	int		extents_left;
-	uint		size;
-	int		nexts;
 	SPLDECL(s);
 
 	mp = efip->efi_item.li_mountp;
@@ -372,20 +345,10 @@ xfs_efi_release(xfs_efi_log_item_t	*efip,
 		 * xfs_trans_delete_ail() drops the AIL lock.
 		 */
 		xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
+		xfs_efi_item_free(efip);
 	} else {
 		AIL_UNLOCK(mp, s);
 	}
-
-	if (extents_left == 0) {
-		nexts = efip->efi_format.efi_nextents;
-		if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
-			size = sizeof(xfs_efi_log_item_t);
-			size += (nexts - 1) * sizeof(xfs_extent_t);
-			kmem_free(efip, size);
-		} else {
-			kmem_zone_free(xfs_efi_zone, efip);
-		}
-	}
 }
 
 /*
@@ -398,8 +361,6 @@ STATIC void
 xfs_efi_cancel(
 	xfs_efi_log_item_t	*efip)
 {
-	int		nexts;
-	int		size;
 	xfs_mount_t	*mp;
 	SPLDECL(s);
 
@@ -410,26 +371,25 @@ xfs_efi_cancel(
 		 * xfs_trans_delete_ail() drops the AIL lock.
 		 */
 		xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
-
-		nexts = efip->efi_format.efi_nextents;
-		if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
-			size = sizeof(xfs_efi_log_item_t);
-			size += (nexts - 1) * sizeof(xfs_extent_t);
-			kmem_free(efip, size);
-		} else {
-			kmem_zone_free(xfs_efi_zone, efip);
-		}
+		xfs_efi_item_free(efip);
 	} else {
 		efip->efi_flags |= XFS_EFI_CANCELED;
 		AIL_UNLOCK(mp, s);
 	}
-
-	return;
 }
 
+STATIC void
+xfs_efd_item_free(xfs_efd_log_item_t *efdp)
+{
+	int nexts = efdp->efd_format.efd_nextents;
 
-
-
+	if (nexts > XFS_EFD_MAX_FAST_EXTENTS) {
+		kmem_free(efdp, sizeof(xfs_efd_log_item_t) +
+				(nexts - 1) * sizeof(xfs_extent_t));
+	} else {
+		kmem_zone_free(xfs_efd_zone, efdp);
+	}
+}
 
 /*
  * This returns the number of iovecs needed to log the given efd item.
@@ -533,9 +493,6 @@ xfs_efd_item_unlock(xfs_efd_log_item_t *efdp)
 STATIC xfs_lsn_t
 xfs_efd_item_committed(xfs_efd_log_item_t *efdp, xfs_lsn_t lsn)
 {
-	uint	size;
-	int	nexts;
-
 	/*
 	 * If we got a log I/O error, it's always the case that the LR with the
 	 * EFI got unpinned and freed before the EFD got aborted.
@@ -543,15 +500,7 @@ xfs_efd_item_committed(xfs_efd_log_item_t *efdp, xfs_lsn_t lsn)
 	if ((efdp->efd_item.li_flags & XFS_LI_ABORTED) == 0)
 		xfs_efi_release(efdp->efd_efip, efdp->efd_format.efd_nextents);
 
-	nexts = efdp->efd_format.efd_nextents;
-	if (nexts > XFS_EFD_MAX_FAST_EXTENTS) {
-		size = sizeof(xfs_efd_log_item_t);
-		size += (nexts - 1) * sizeof(xfs_extent_t);
-		kmem_free(efdp, size);
-	} else {
-		kmem_zone_free(xfs_efd_zone, efdp);
-	}
-
+	xfs_efd_item_free(efdp);
 	return (xfs_lsn_t)-1;
 }
 
@@ -565,9 +514,6 @@ xfs_efd_item_committed(xfs_efd_log_item_t *efdp, xfs_lsn_t lsn)
 STATIC void
 xfs_efd_item_abort(xfs_efd_log_item_t *efdp)
 {
-	int	nexts;
-	int	size;
-
 	/*
 	 * If we got a log I/O error, it's always the case that the LR with the
 	 * EFI got unpinned and freed before the EFD got aborted. So don't
@@ -576,15 +522,7 @@ xfs_efd_item_abort(xfs_efd_log_item_t *efdp)
 	if ((efdp->efd_item.li_flags & XFS_LI_ABORTED) == 0)
 		xfs_efi_cancel(efdp->efd_efip);
 
-	nexts = efdp->efd_format.efd_nextents;
-	if (nexts > XFS_EFD_MAX_FAST_EXTENTS) {
-		size = sizeof(xfs_efd_log_item_t);
-		size += (nexts - 1) * sizeof(xfs_extent_t);
-		kmem_free(efdp, size);
-	} else {
-		kmem_zone_free(xfs_efd_zone, efdp);
-	}
-	return;
+	xfs_efd_item_free(efdp);
 }
 
 /*
@@ -615,7 +553,7 @@ xfs_efd_item_committing(xfs_efd_log_item_t *efip, xfs_lsn_t lsn)
 /*
  * This is the ops vector shared by all efd log items.
  */
-struct xfs_item_ops xfs_efd_item_ops = {
+STATIC struct xfs_item_ops xfs_efd_item_ops = {
 	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_efd_item_size,
 	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
 					xfs_efd_item_format,
diff --git a/fs/xfs/xfs_extfree_item.h b/fs/xfs/xfs_extfree_item.h
index 7122d61..d433bac 100644
--- a/fs/xfs/xfs_extfree_item.h
+++ b/fs/xfs/xfs_extfree_item.h
@@ -118,6 +118,8 @@ xfs_efi_log_item_t	*xfs_efi_init(struct xfs_mount *, uint);
 xfs_efd_log_item_t	*xfs_efd_init(struct xfs_mount *, xfs_efi_log_item_t *,
 				      uint);
 
+void			xfs_efi_item_free(xfs_efi_log_item_t *);
+
 #endif	/* __KERNEL__ */
 
 #endif	/* __XFS_EXTFREE_ITEM_H__ */
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index 6ee8443..095af0a 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h
@@ -60,7 +60,8 @@ struct fsxattr {
 	__u32		fsx_xflags;	/* xflags field value (get/set) */
 	__u32		fsx_extsize;	/* extsize field value (get/set)*/
 	__u32		fsx_nextents;	/* nextents field value (get)	*/
-	unsigned char	fsx_pad[16];
+	__u32		fsx_projid;	/* project identifier (get/set) */
+	unsigned char	fsx_pad[12];
 };
 #endif
 
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 2121305..ca535d6 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -559,32 +559,6 @@ xfs_reserve_blocks(
 	return(0);
 }
 
-void
-xfs_fs_log_dummy(xfs_mount_t *mp)
-{
-	xfs_trans_t *tp;
-	xfs_inode_t *ip;
-
-
-	tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1);
-	atomic_inc(&mp->m_active_trans);
-	if (xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0)) {
-		xfs_trans_cancel(tp, 0);
-		return;
-	}
-
-	ip = mp->m_rootip;
-	xfs_ilock(ip, XFS_ILOCK_EXCL);
-
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-	xfs_trans_ihold(tp, ip);
-	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-	xfs_trans_set_sync(tp);
-	xfs_trans_commit(tp, 0, NULL);
-
-	xfs_iunlock(ip, XFS_ILOCK_EXCL);
-}
-
 int
 xfs_fs_goingdown(
 	xfs_mount_t	*mp,
diff --git a/fs/xfs/xfs_ialloc_btree.h b/fs/xfs/xfs_ialloc_btree.h
index 803c4d1..44be188 100644
--- a/fs/xfs/xfs_ialloc_btree.h
+++ b/fs/xfs/xfs_ialloc_btree.h
@@ -100,9 +100,13 @@ xfs_inofree_t xfs_inobt_mask(int i);
 #endif
 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_IS_FREE)
 int xfs_inobt_is_free(xfs_inobt_rec_t *rp, int i);
-#define	XFS_INOBT_IS_FREE(rp,i)	xfs_inobt_is_free(rp,i)
+#define	XFS_INOBT_IS_FREE(rp,i)		xfs_inobt_is_free(rp,i)
+#define	XFS_INOBT_IS_FREE_DISK(rp,i)	xfs_inobt_is_free_disk(rp,i)
 #else
-#define	XFS_INOBT_IS_FREE(rp,i)	(((rp)->ir_free & XFS_INOBT_MASK(i)) != 0)
+#define	XFS_INOBT_IS_FREE(rp,i)	\
+	(((rp)->ir_free & XFS_INOBT_MASK(i)) != 0)
+#define XFS_INOBT_IS_FREE_DISK(rp,i) \
+	((INT_GET((rp)->ir_free, ARCH_CONVERT) & XFS_INOBT_MASK(i)) != 0)
 #endif
 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_SET_FREE)
 void xfs_inobt_set_free(xfs_inobt_rec_t *rp, int i);
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index bc8c8c7..34bdf59 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -146,51 +146,6 @@ xfs_inobp_check(
 #endif
 
 /*
- * called from bwrite on xfs inode buffers
- */
-void
-xfs_inobp_bwcheck(xfs_buf_t *bp)
-{
-	xfs_mount_t	*mp;
-	int		i;
-	int		j;
-	xfs_dinode_t	*dip;
-
-	ASSERT(XFS_BUF_FSPRIVATE3(bp, void *) != NULL);
-
-	mp = XFS_BUF_FSPRIVATE3(bp, xfs_mount_t *);
-
-
-	j = mp->m_inode_cluster_size >> mp->m_sb.sb_inodelog;
-
-	for (i = 0; i < j; i++)  {
-		dip = (xfs_dinode_t *) xfs_buf_offset(bp,
-						i * mp->m_sb.sb_inodesize);
-		if (INT_GET(dip->di_core.di_magic, ARCH_CONVERT) != XFS_DINODE_MAGIC) {
-			cmn_err(CE_WARN,
-"Bad magic # 0x%x in XFS inode buffer 0x%Lx, starting blockno %Ld, offset 0x%x",
-				INT_GET(dip->di_core.di_magic, ARCH_CONVERT),
-				(__uint64_t)(__psunsigned_t) bp,
-				(__int64_t) XFS_BUF_ADDR(bp),
-				xfs_buf_offset(bp, i * mp->m_sb.sb_inodesize));
-			xfs_fs_cmn_err(CE_WARN, mp,
-				"corrupt, unmount and run xfs_repair");
-		}
-		if (!dip->di_next_unlinked)  {
-			cmn_err(CE_WARN,
-"Bad next_unlinked field (0) in XFS inode buffer 0x%p, starting blockno %Ld, offset 0x%x",
-				(__uint64_t)(__psunsigned_t) bp,
-				(__int64_t) XFS_BUF_ADDR(bp),
-				xfs_buf_offset(bp, i * mp->m_sb.sb_inodesize));
-			xfs_fs_cmn_err(CE_WARN, mp,
-				"corrupt, unmount and run xfs_repair");
-		}
-	}
-
-	return;
-}
-
-/*
  * This routine is called to map an inode number within a file
  * system to the buffer containing the on-disk version of the
  * inode.  It returns a pointer to the buffer containing the
@@ -203,7 +158,7 @@ xfs_inobp_bwcheck(xfs_buf_t *bp)
  * Use xfs_imap() to determine the size and location of the
  * buffer to read from disk.
  */
-int
+STATIC int
 xfs_inotobp(
 	xfs_mount_t	*mp,
 	xfs_trans_t	*tp,
@@ -1247,26 +1202,32 @@ xfs_ialloc(
 	case S_IFREG:
 	case S_IFDIR:
 		if (unlikely(pip->i_d.di_flags & XFS_DIFLAG_ANY)) {
-			if (pip->i_d.di_flags & XFS_DIFLAG_RTINHERIT) {
-				if ((mode & S_IFMT) == S_IFDIR) {
-					ip->i_d.di_flags |= XFS_DIFLAG_RTINHERIT;
-				} else {
-					ip->i_d.di_flags |= XFS_DIFLAG_REALTIME;
+			uint	di_flags = 0;
+
+			if ((mode & S_IFMT) == S_IFDIR) {
+				if (pip->i_d.di_flags & XFS_DIFLAG_RTINHERIT)
+					di_flags |= XFS_DIFLAG_RTINHERIT;
+			} else {
+				if (pip->i_d.di_flags & XFS_DIFLAG_RTINHERIT) {
+					di_flags |= XFS_DIFLAG_REALTIME;
 					ip->i_iocore.io_flags |= XFS_IOCORE_RT;
 				}
 			}
 			if ((pip->i_d.di_flags & XFS_DIFLAG_NOATIME) &&
 			    xfs_inherit_noatime)
-				ip->i_d.di_flags |= XFS_DIFLAG_NOATIME;
+				di_flags |= XFS_DIFLAG_NOATIME;
 			if ((pip->i_d.di_flags & XFS_DIFLAG_NODUMP) &&
 			    xfs_inherit_nodump)
-				ip->i_d.di_flags |= XFS_DIFLAG_NODUMP;
+				di_flags |= XFS_DIFLAG_NODUMP;
 			if ((pip->i_d.di_flags & XFS_DIFLAG_SYNC) &&
 			    xfs_inherit_sync)
-				ip->i_d.di_flags |= XFS_DIFLAG_SYNC;
+				di_flags |= XFS_DIFLAG_SYNC;
 			if ((pip->i_d.di_flags & XFS_DIFLAG_NOSYMLINKS) &&
 			    xfs_inherit_nosymlinks)
-				ip->i_d.di_flags |= XFS_DIFLAG_NOSYMLINKS;
+				di_flags |= XFS_DIFLAG_NOSYMLINKS;
+			if (pip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
+				di_flags |= XFS_DIFLAG_PROJINHERIT;
+			ip->i_d.di_flags |= di_flags;
 		}
 		/* FALLTHROUGH */
 	case S_IFLNK:
@@ -2156,7 +2117,7 @@ static __inline__ int xfs_inode_clean(xfs_inode_t *ip)
 		(ip->i_update_core == 0));
 }
 
-void
+STATIC void
 xfs_ifree_cluster(
 	xfs_inode_t	*free_ip,
 	xfs_trans_t	*tp,
@@ -2875,7 +2836,7 @@ xfs_iunpin(
  * be subsequently pinned once someone is waiting for it to be
  * unpinned.
  */
-void
+STATIC void
 xfs_iunpin_wait(
 	xfs_inode_t	*ip)
 {
@@ -3601,107 +3562,43 @@ corrupt_out:
 
 
 /*
- * Flush all inactive inodes in mp.  Return true if no user references
- * were found, false otherwise.
+ * Flush all inactive inodes in mp.
  */
-int
+void
 xfs_iflush_all(
-	xfs_mount_t	*mp,
-	int		flag)
+	xfs_mount_t	*mp)
 {
-	int		busy;
-	int		done;
-	int		purged;
 	xfs_inode_t	*ip;
-	vmap_t		vmap;
 	vnode_t		*vp;
 
-	busy = done = 0;
-	while (!done) {
-		purged = 0;
-		XFS_MOUNT_ILOCK(mp);
-		ip = mp->m_inodes;
-		if (ip == NULL) {
-			break;
-		}
-		do {
-			/* Make sure we skip markers inserted by sync */
-			if (ip->i_mount == NULL) {
-				ip = ip->i_mnext;
-				continue;
-			}
-
-			/*
-			 * It's up to our caller to purge the root
-			 * and quota vnodes later.
-			 */
-			vp = XFS_ITOV_NULL(ip);
-
-			if (!vp) {
-				XFS_MOUNT_IUNLOCK(mp);
-				xfs_finish_reclaim(ip, 0, XFS_IFLUSH_ASYNC);
-				purged = 1;
-				break;
-			}
+ again:
+	XFS_MOUNT_ILOCK(mp);
+	ip = mp->m_inodes;
+	if (ip == NULL)
+		goto out;
 
-			if (vn_count(vp) != 0) {
-				if (vn_count(vp) == 1 &&
-				    (ip == mp->m_rootip ||
-				     (mp->m_quotainfo &&
-				      (ip->i_ino == mp->m_sb.sb_uquotino ||
-				       ip->i_ino == mp->m_sb.sb_gquotino)))) {
+	do {
+		/* Make sure we skip markers inserted by sync */
+		if (ip->i_mount == NULL) {
+			ip = ip->i_mnext;
+			continue;
+		}
 
-					ip = ip->i_mnext;
-					continue;
-				}
-				if (!(flag & XFS_FLUSH_ALL)) {
-					busy = 1;
-					done = 1;
-					break;
-				}
-				/*
-				 * Ignore busy inodes but continue flushing
-				 * others.
-				 */
-				ip = ip->i_mnext;
-				continue;
-			}
-			/*
-			 * Sample vp mapping while holding mp locked on MP
-			 * systems, so we don't purge a reclaimed or
-			 * nonexistent vnode.  We break from the loop
-			 * since we know that we modify
-			 * it by pulling ourselves from it in xfs_reclaim()
-			 * called via vn_purge() below.  Set ip to the next
-			 * entry in the list anyway so we'll know below
-			 * whether we reached the end or not.
-			 */
-			VMAP(vp, vmap);
+		vp = XFS_ITOV_NULL(ip);
+		if (!vp) {
 			XFS_MOUNT_IUNLOCK(mp);
+			xfs_finish_reclaim(ip, 0, XFS_IFLUSH_ASYNC);
+			goto again;
+		}
 
-			vn_purge(vp, &vmap);
+		ASSERT(vn_count(vp) == 0);
 
-			purged = 1;
-			break;
-		} while (ip != mp->m_inodes);
-		/*
-		 * We need to distinguish between when we exit the loop
-		 * after a purge and when we simply hit the end of the
-		 * list.  We can't use the (ip == mp->m_inodes) test,
-		 * because when we purge an inode at the start of the list
-		 * the next inode on the list becomes mp->m_inodes.  That
-		 * would cause such a test to bail out early.  The purged
-		 * variable tells us how we got out of the loop.
-		 */
-		if (!purged) {
-			done = 1;
-		}
-	}
+		ip = ip->i_mnext;
+	} while (ip != mp->m_inodes);
+ out:
 	XFS_MOUNT_IUNLOCK(mp);
-	return !busy;
 }
 
-
 /*
  * xfs_iaccess: check accessibility of inode for mode.
  */
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 37e1c31..54d9e54 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -412,11 +412,6 @@ void xfs_ifork_next_set(xfs_inode_t *ip, int w, int n);
 #define	XFS_IFLUSH_DELWRI		5
 
 /*
- * Flags for xfs_iflush_all.
- */
-#define	XFS_FLUSH_ALL		0x1
-
-/*
  * Flags for xfs_itruncate_start().
  */
 #define	XFS_ITRUNC_DEFINITE	0x1
@@ -487,8 +482,6 @@ int		xfs_finish_reclaim_all(struct xfs_mount *, int);
 /*
  * xfs_inode.c prototypes.
  */
-int		xfs_inotobp(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
-			    xfs_dinode_t **, struct xfs_buf **, int *);
 int		xfs_itobp(struct xfs_mount *, struct xfs_trans *,
 			  xfs_inode_t *, xfs_dinode_t **, struct xfs_buf **,
 			  xfs_daddr_t);
@@ -522,7 +515,7 @@ void		xfs_ipin(xfs_inode_t *);
 void		xfs_iunpin(xfs_inode_t *);
 int		xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int);
 int		xfs_iflush(xfs_inode_t *, uint);
-int		xfs_iflush_all(struct xfs_mount *, int);
+void		xfs_iflush_all(struct xfs_mount *);
 int		xfs_iaccess(xfs_inode_t *, mode_t, cred_t *);
 uint		xfs_iroundup(uint);
 void		xfs_ichgtime(xfs_inode_t *, int);
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 768cb18..0eed30f 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -910,7 +910,7 @@ xfs_inode_item_committing(
 /*
  * This is the ops vector shared by all buf log items.
  */
-struct xfs_item_ops xfs_inode_item_ops = {
+STATIC struct xfs_item_ops xfs_inode_item_ops = {
 	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_inode_item_size,
 	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
 					xfs_inode_item_format,
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 469e1a7..2edd676 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -385,15 +385,15 @@ xfs_iomap_write_direct(
 	int		nimaps, maps;
 	int		error;
 	int		bmapi_flag;
+	int		quota_flag;
 	int		rt;
 	xfs_trans_t	*tp;
 	xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS], *imapp;
 	xfs_bmap_free_t free_list;
 	int		aeof;
-	xfs_filblks_t	datablocks;
+	xfs_filblks_t	datablocks, qblocks, resblks;
 	int		committed;
 	int		numrtextents;
-	uint		resblks;
 
 	/*
 	 * Make sure that the dquots are there. This doesn't hold
@@ -419,7 +419,6 @@ xfs_iomap_write_direct(
 		xfs_fileoff_t	map_last_fsb;
 
 		map_last_fsb = ret_imap->br_blockcount + ret_imap->br_startoff;
-
 		if (map_last_fsb < last_fsb) {
 			last_fsb = map_last_fsb;
 			count_fsb = last_fsb - offset_fsb;
@@ -428,56 +427,47 @@ xfs_iomap_write_direct(
 	}
 
 	/*
-	 * determine if reserving space on
-	 * the data or realtime partition.
+	 * Determine if reserving space on the data or realtime partition.
 	 */
 	if ((rt = XFS_IS_REALTIME_INODE(ip))) {
-		int	sbrtextsize, iprtextsize;
+		xfs_extlen_t	extsz;
 
-		sbrtextsize = mp->m_sb.sb_rextsize;
-		iprtextsize =
-			ip->i_d.di_extsize ? ip->i_d.di_extsize : sbrtextsize;
-		numrtextents = (count_fsb + iprtextsize - 1);
-		do_div(numrtextents, sbrtextsize);
+		if (!(extsz = ip->i_d.di_extsize))
+			extsz = mp->m_sb.sb_rextsize;
+		numrtextents = qblocks = (count_fsb + extsz - 1);
+		do_div(numrtextents, mp->m_sb.sb_rextsize);
+		quota_flag = XFS_QMOPT_RES_RTBLKS;
 		datablocks = 0;
 	} else {
-		datablocks = count_fsb;
+		datablocks = qblocks = count_fsb;
+		quota_flag = XFS_QMOPT_RES_REGBLKS;
 		numrtextents = 0;
 	}
 
 	/*
-	 * allocate and setup the transaction
+	 * Allocate and setup the transaction
 	 */
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 	tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT);
-
 	resblks = XFS_DIOSTRAT_SPACE_RES(mp, datablocks);
-
 	error = xfs_trans_reserve(tp, resblks,
 			XFS_WRITE_LOG_RES(mp), numrtextents,
 			XFS_TRANS_PERM_LOG_RES,
 			XFS_WRITE_LOG_COUNT);
 
 	/*
-	 * check for running out of space
+	 * Check for running out of space, note: need lock to return
 	 */
 	if (error)
-		/*
-		 * Free the transaction structure.
-		 */
 		xfs_trans_cancel(tp, 0);
-
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
-
 	if (error)
-		goto error_out; /* Don't return in above if .. trans ..,
-					need lock to return */
+		goto error_out;
 
-	if (XFS_TRANS_RESERVE_BLKQUOTA(mp, tp, ip, resblks)) {
+	if (XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, qblocks, 0, quota_flag)) {
 		error = (EDQUOT);
 		goto error1;
 	}
-	nimaps = 1;
 
 	bmapi_flag = XFS_BMAPI_WRITE;
 	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
@@ -487,31 +477,29 @@ xfs_iomap_write_direct(
 		bmapi_flag |= XFS_BMAPI_PREALLOC;
 
 	/*
-	 * issue the bmapi() call to allocate the blocks
+	 * Issue the bmapi() call to allocate the blocks
 	 */
 	XFS_BMAP_INIT(&free_list, &firstfsb);
+	nimaps = 1;
 	imapp = &imap[0];
 	error = xfs_bmapi(tp, ip, offset_fsb, count_fsb,
 		bmapi_flag, &firstfsb, 0, imapp, &nimaps, &free_list);
-	if (error) {
+	if (error)
 		goto error0;
-	}
 
 	/*
-	 * complete the transaction
+	 * Complete the transaction
 	 */
-
 	error = xfs_bmap_finish(&tp, &free_list, firstfsb, &committed);
-	if (error) {
+	if (error)
 		goto error0;
-	}
-
 	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
-	if (error) {
+	if (error)
 		goto error_out;
-	}
 
-	/* copy any maps to caller's array and return any error. */
+	/*
+	 * Copy any maps to caller's array and return any error.
+	 */
 	if (nimaps == 0) {
 		error = (ENOSPC);
 		goto error_out;
@@ -530,10 +518,11 @@ xfs_iomap_write_direct(
         }
 	return 0;
 
- error0:	/* Cancel bmap, unlock inode, and cancel trans */
+error0:	/* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */
 	xfs_bmap_cancel(&free_list);
+	XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp, tp, ip, qblocks, 0, quota_flag);
 
- error1:	/* Just cancel transaction */
+error1:	/* Just cancel transaction */
 	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
 	*nmaps = 0;	/* nothing set-up here */
 
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 092d5fb..1cd2ac1 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -134,7 +134,7 @@ STATIC void	xlog_verify_tail_lsn(xlog_t *log, xlog_in_core_t *iclog,
 #define xlog_verify_tail_lsn(a,b,c)
 #endif
 
-int		xlog_iclogs_empty(xlog_t *log);
+STATIC int	xlog_iclogs_empty(xlog_t *log);
 
 #ifdef DEBUG
 int xlog_do_error = 0;
@@ -1857,7 +1857,7 @@ xlog_write(xfs_mount_t *	mp,
  *
  * State Change: DIRTY -> ACTIVE
  */
-void
+STATIC void
 xlog_state_clean_log(xlog_t *log)
 {
 	xlog_in_core_t	*iclog;
@@ -3542,7 +3542,7 @@ xfs_log_force_umount(
 	return (retval);
 }
 
-int
+STATIC int
 xlog_iclogs_empty(xlog_t *log)
 {
 	xlog_in_core_t	*iclog;
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index c31e3ce..1a1d452 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -535,7 +535,6 @@ typedef struct log {
 
 /* common routines */
 extern xfs_lsn_t xlog_assign_tail_lsn(struct xfs_mount *mp);
-extern int	 xlog_find_head(xlog_t *log, xfs_daddr_t *head_blk);
 extern int	 xlog_find_tail(xlog_t	*log,
 				xfs_daddr_t *head_blk,
 				xfs_daddr_t *tail_blk,
@@ -548,7 +547,6 @@ extern void	 xlog_recover_process_iunlinks(xlog_t *log);
 extern struct xfs_buf *xlog_get_bp(xlog_t *, int);
 extern void	 xlog_put_bp(struct xfs_buf *);
 extern int	 xlog_bread(xlog_t *, xfs_daddr_t, int, struct xfs_buf *);
-extern xfs_caddr_t xlog_align(xlog_t *, xfs_daddr_t, int, struct xfs_buf *);
 
 /* iclog tracing */
 #define XLOG_TRACE_GRAB_FLUSH  1
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 9824b5b..0aac28d 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -148,7 +148,7 @@ xlog_bread(
  * The buffer is kept locked across the write and is returned locked.
  * This can only be used for synchronous log writes.
  */
-int
+STATIC int
 xlog_bwrite(
 	xlog_t		*log,
 	xfs_daddr_t	blk_no,
@@ -179,7 +179,7 @@ xlog_bwrite(
 	return error;
 }
 
-xfs_caddr_t
+STATIC xfs_caddr_t
 xlog_align(
 	xlog_t		*log,
 	xfs_daddr_t	blk_no,
@@ -528,7 +528,7 @@ out:
  *
  * Return: zero if normal, non-zero if error.
  */
-int
+STATIC int
 xlog_find_head(
 	xlog_t 		*log,
 	xfs_daddr_t	*return_head_blk)
@@ -1964,7 +1964,8 @@ xlog_recover_do_reg_buffer(
 		 * probably a good thing to do for other buf types also.
 		 */
 		error = 0;
-		if (buf_f->blf_flags & (XFS_BLI_UDQUOT_BUF|XFS_BLI_GDQUOT_BUF)) {
+		if (buf_f->blf_flags &
+		   (XFS_BLI_UDQUOT_BUF|XFS_BLI_PDQUOT_BUF|XFS_BLI_GDQUOT_BUF)) {
 			error = xfs_qm_dqcheck((xfs_disk_dquot_t *)
 					       item->ri_buf[i].i_addr,
 					       -1, 0, XFS_QMOPT_DOWARN,
@@ -2030,6 +2031,7 @@ xfs_qm_dqcheck(
 	}
 
 	if (INT_GET(ddq->d_flags, ARCH_CONVERT) != XFS_DQ_USER &&
+	    INT_GET(ddq->d_flags, ARCH_CONVERT) != XFS_DQ_PROJ &&
 	    INT_GET(ddq->d_flags, ARCH_CONVERT) != XFS_DQ_GROUP) {
 		if (flags & XFS_QMOPT_DOWARN)
 			cmn_err(CE_ALERT,
@@ -2135,6 +2137,8 @@ xlog_recover_do_dquot_buffer(
 	type = 0;
 	if (buf_f->blf_flags & XFS_BLI_UDQUOT_BUF)
 		type |= XFS_DQ_USER;
+	if (buf_f->blf_flags & XFS_BLI_PDQUOT_BUF)
+		type |= XFS_DQ_PROJ;
 	if (buf_f->blf_flags & XFS_BLI_GDQUOT_BUF)
 		type |= XFS_DQ_GROUP;
 	/*
@@ -2247,7 +2251,8 @@ xlog_recover_do_buffer_trans(
 	error = 0;
 	if (flags & XFS_BLI_INODE_BUF) {
 		error = xlog_recover_do_inode_buffer(mp, item, bp, buf_f);
-	} else if (flags & (XFS_BLI_UDQUOT_BUF | XFS_BLI_GDQUOT_BUF)) {
+	} else if (flags &
+		  (XFS_BLI_UDQUOT_BUF|XFS_BLI_PDQUOT_BUF|XFS_BLI_GDQUOT_BUF)) {
 		xlog_recover_do_dquot_buffer(mp, log, item, bp, buf_f);
 	} else {
 		xlog_recover_do_reg_buffer(mp, item, bp, buf_f);
@@ -2619,7 +2624,7 @@ xlog_recover_do_dquot_trans(
 	 * This type of quotas was turned off, so ignore this record.
 	 */
 	type = INT_GET(recddq->d_flags, ARCH_CONVERT) &
-			(XFS_DQ_USER | XFS_DQ_GROUP);
+			(XFS_DQ_USER | XFS_DQ_PROJ | XFS_DQ_GROUP);
 	ASSERT(type);
 	if (log->l_quotaoffs_flag & type)
 		return (0);
@@ -2742,7 +2747,6 @@ xlog_recover_do_efd_trans(
 	xfs_efi_log_item_t	*efip = NULL;
 	xfs_log_item_t		*lip;
 	int			gen;
-	int			nexts;
 	__uint64_t		efi_id;
 	SPLDECL(s);
 
@@ -2777,22 +2781,15 @@ xlog_recover_do_efd_trans(
 		}
 		lip = xfs_trans_next_ail(mp, lip, &gen, NULL);
 	}
-	if (lip == NULL) {
-		AIL_UNLOCK(mp, s);
-	}
 
 	/*
 	 * If we found it, then free it up.  If it wasn't there, it
 	 * must have been overwritten in the log.  Oh well.
 	 */
 	if (lip != NULL) {
-		nexts = efip->efi_format.efi_nextents;
-		if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
-			kmem_free(lip, sizeof(xfs_efi_log_item_t) +
-				  ((nexts - 1) * sizeof(xfs_extent_t)));
-		} else {
-			kmem_zone_free(xfs_efi_zone, efip);
-		}
+		xfs_efi_item_free(efip);
+	} else {
+		AIL_UNLOCK(mp, s);
 	}
 }
 
diff --git a/fs/xfs/xfs_macros.c b/fs/xfs/xfs_macros.c
index ce4f46c..698c2cd 100644
--- a/fs/xfs/xfs_macros.c
+++ b/fs/xfs/xfs_macros.c
@@ -1658,6 +1658,11 @@ xfs_inobt_is_free(xfs_inobt_rec_t *rp, int i)
 {
 	return XFS_INOBT_IS_FREE(rp, i);
 }
+int
+xfs_inobt_is_free_disk(xfs_inobt_rec_t *rp, int i)
+{
+	return XFS_INOBT_IS_FREE_DISK(rp, i);
+}
 #endif
 
 #if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_IS_LAST_REC)
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 2ec967d..82e1646 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -64,6 +64,7 @@
 STATIC void	xfs_mount_log_sbunit(xfs_mount_t *, __int64_t);
 STATIC int	xfs_uuid_mount(xfs_mount_t *);
 STATIC void	xfs_uuid_unmount(xfs_mount_t *mp);
+STATIC void	xfs_unmountfs_wait(xfs_mount_t *);
 
 static struct {
     short offset;
@@ -555,7 +556,7 @@ xfs_readsb(xfs_mount_t *mp)
  * fields from the superblock associated with the given
  * mount structure
  */
-void
+STATIC void
 xfs_mount_common(xfs_mount_t *mp, xfs_sb_t *sbp)
 {
 	int	i;
@@ -1081,7 +1082,7 @@ xfs_unmountfs(xfs_mount_t *mp, struct cred *cr)
 	int64_t		fsid;
 #endif
 
-	xfs_iflush_all(mp, XFS_FLUSH_ALL);
+	xfs_iflush_all(mp);
 
 	XFS_QM_DQPURGEALL(mp,
 		XFS_QMOPT_UQUOTA | XFS_QMOPT_GQUOTA | XFS_QMOPT_UMOUNTING);
@@ -1111,15 +1112,6 @@ xfs_unmountfs(xfs_mount_t *mp, struct cred *cr)
 	 */
 	ASSERT(mp->m_inodes == NULL);
 
-	/*
-	 * We may have bufs that are in the process of getting written still.
-	 * We must wait for the I/O completion of those. The sync flag here
-	 * does a two pass iteration thru the bufcache.
-	 */
-	if (XFS_FORCED_SHUTDOWN(mp)) {
-		xfs_incore_relse(mp->m_ddev_targp, 0, 1); /* synchronous */
-	}
-
 	xfs_unmountfs_close(mp, cr);
 	if ((mp->m_flags & XFS_MOUNT_NOUUID) == 0)
 		xfs_uuid_unmount(mp);
@@ -1146,7 +1138,7 @@ xfs_unmountfs_close(xfs_mount_t *mp, struct cred *cr)
 	xfs_free_buftarg(mp->m_ddev_targp, 0);
 }
 
-void
+STATIC void
 xfs_unmountfs_wait(xfs_mount_t *mp)
 {
 	if (mp->m_logdev_targp != mp->m_ddev_targp)
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 30dd08f..5affba3 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -141,7 +141,7 @@ typedef int	(*xfs_dqattach_t)(struct xfs_inode *, uint);
 typedef void	(*xfs_dqdetach_t)(struct xfs_inode *);
 typedef int	(*xfs_dqpurgeall_t)(struct xfs_mount *, uint);
 typedef int	(*xfs_dqvopalloc_t)(struct xfs_mount *,
-			struct xfs_inode *, uid_t, gid_t, uint,
+			struct xfs_inode *, uid_t, gid_t, prid_t, uint,
 			struct xfs_dquot **, struct xfs_dquot **);
 typedef void	(*xfs_dqvopcreate_t)(struct xfs_trans *, struct xfs_inode *,
 			struct xfs_dquot *, struct xfs_dquot *);
@@ -185,8 +185,8 @@ typedef struct xfs_qmops {
 	(*(mp)->m_qm_ops.xfs_dqdetach)(ip)
 #define XFS_QM_DQPURGEALL(mp, fl) \
 	(*(mp)->m_qm_ops.xfs_dqpurgeall)(mp, fl)
-#define XFS_QM_DQVOPALLOC(mp, ip, uid, gid, fl, dq1, dq2) \
-	(*(mp)->m_qm_ops.xfs_dqvopalloc)(mp, ip, uid, gid, fl, dq1, dq2)
+#define XFS_QM_DQVOPALLOC(mp, ip, uid, gid, prid, fl, dq1, dq2) \
+	(*(mp)->m_qm_ops.xfs_dqvopalloc)(mp, ip, uid, gid, prid, fl, dq1, dq2)
 #define XFS_QM_DQVOPCREATE(mp, tp, ip, dq1, dq2) \
 	(*(mp)->m_qm_ops.xfs_dqvopcreate)(tp, ip, dq1, dq2)
 #define XFS_QM_DQVOPRENAME(mp, ip) \
@@ -544,7 +544,6 @@ extern void	xfs_mount_free(xfs_mount_t *mp, int remove_bhv);
 extern int	xfs_mountfs(struct vfs *, xfs_mount_t *mp, int);
 
 extern int	xfs_unmountfs(xfs_mount_t *, struct cred *);
-extern void	xfs_unmountfs_wait(xfs_mount_t *);
 extern void	xfs_unmountfs_close(xfs_mount_t *, struct cred *);
 extern int	xfs_unmountfs_writesb(xfs_mount_t *);
 extern int	xfs_unmount_flush(xfs_mount_t *, int);
diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index 703ec4e..7134576 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -96,7 +96,7 @@ typedef struct xfs_dqblk {
  * flags for q_flags field in the dquot.
  */
 #define XFS_DQ_USER		0x0001		/* a user quota */
-/* #define XFS_DQ_PROJ		0x0002		-- project quota (IRIX) */
+#define XFS_DQ_PROJ		0x0002		/* project quota */
 #define XFS_DQ_GROUP		0x0004		/* a group quota */
 #define XFS_DQ_FLOCKED		0x0008		/* flush lock taken */
 #define XFS_DQ_DIRTY		0x0010		/* dquot is dirty */
@@ -104,6 +104,8 @@ typedef struct xfs_dqblk {
 #define XFS_DQ_INACTIVE		0x0040		/* dq off mplist & hashlist */
 #define XFS_DQ_MARKER		0x0080		/* sentinel */
 
+#define XFS_DQ_ALLTYPES		(XFS_DQ_USER|XFS_DQ_PROJ|XFS_DQ_GROUP)
+
 /*
  * In the worst case, when both user and group quotas are on,
  * we can have a max of three dquots changing in a single transaction.
@@ -124,7 +126,7 @@ typedef struct xfs_dqblk {
 typedef struct xfs_dq_logformat {
 	__uint16_t		qlf_type;      /* dquot log item type */
 	__uint16_t		qlf_size;      /* size of this item */
-	xfs_dqid_t		qlf_id;	       /* usr/grp id number : 32 bits */
+	xfs_dqid_t		qlf_id;	       /* usr/grp/proj id : 32 bits */
 	__int64_t		qlf_blkno;     /* blkno of dquot buffer */
 	__int32_t		qlf_len;       /* len of dquot buffer */
 	__uint32_t		qlf_boffset;   /* off of dquot in buffer */
@@ -152,9 +154,9 @@ typedef struct xfs_qoff_logformat {
 #define XFS_UQUOTA_ACCT	0x0001  /* user quota accounting ON */
 #define XFS_UQUOTA_ENFD	0x0002  /* user quota limits enforced */
 #define XFS_UQUOTA_CHKD	0x0004  /* quotacheck run on usr quotas */
-#define XFS_PQUOTA_ACCT	0x0008  /* (IRIX) project quota accounting ON */
-#define XFS_GQUOTA_ENFD	0x0010  /* group quota limits enforced */
-#define XFS_GQUOTA_CHKD	0x0020  /* quotacheck run on grp quotas */
+#define XFS_PQUOTA_ACCT	0x0008  /* project quota accounting ON */
+#define XFS_OQUOTA_ENFD	0x0010  /* other (grp/prj) quota limits enforced */
+#define XFS_OQUOTA_CHKD	0x0020  /* quotacheck run on other (grp/prj) quotas */
 #define XFS_GQUOTA_ACCT	0x0040  /* group quota accounting ON */
 
 /*
@@ -162,17 +164,22 @@ typedef struct xfs_qoff_logformat {
  * are in the process of getting turned off. These flags are in m_qflags but
  * never in sb_qflags.
  */
-#define XFS_UQUOTA_ACTIVE	0x0080  /* uquotas are being turned off */
-#define XFS_GQUOTA_ACTIVE	0x0100  /* gquotas are being turned off */
+#define XFS_UQUOTA_ACTIVE	0x0100  /* uquotas are being turned off */
+#define XFS_PQUOTA_ACTIVE	0x0200  /* pquotas are being turned off */
+#define XFS_GQUOTA_ACTIVE	0x0400  /* gquotas are being turned off */
 
 /*
  * Checking XFS_IS_*QUOTA_ON() while holding any inode lock guarantees
  * quota will be not be switched off as long as that inode lock is held.
  */
 #define XFS_IS_QUOTA_ON(mp)	((mp)->m_qflags & (XFS_UQUOTA_ACTIVE | \
-						   XFS_GQUOTA_ACTIVE))
+						   XFS_GQUOTA_ACTIVE | \
+						   XFS_PQUOTA_ACTIVE))
+#define XFS_IS_OQUOTA_ON(mp)	((mp)->m_qflags & (XFS_GQUOTA_ACTIVE | \
+						   XFS_PQUOTA_ACTIVE))
 #define XFS_IS_UQUOTA_ON(mp)	((mp)->m_qflags & XFS_UQUOTA_ACTIVE)
 #define XFS_IS_GQUOTA_ON(mp)	((mp)->m_qflags & XFS_GQUOTA_ACTIVE)
+#define XFS_IS_PQUOTA_ON(mp)	((mp)->m_qflags & XFS_PQUOTA_ACTIVE)
 
 /*
  * Flags to tell various functions what to do. Not all of these are meaningful
@@ -182,7 +189,7 @@ typedef struct xfs_qoff_logformat {
 #define XFS_QMOPT_DQLOCK	0x0000001 /* dqlock */
 #define XFS_QMOPT_DQALLOC	0x0000002 /* alloc dquot ondisk if needed */
 #define XFS_QMOPT_UQUOTA	0x0000004 /* user dquot requested */
-#define XFS_QMOPT_GQUOTA	0x0000008 /* group dquot requested */
+#define XFS_QMOPT_PQUOTA	0x0000008 /* project dquot requested */
 #define XFS_QMOPT_FORCE_RES	0x0000010 /* ignore quota limits */
 #define XFS_QMOPT_DQSUSER	0x0000020 /* don't cache super users dquot */
 #define XFS_QMOPT_SBVERSION	0x0000040 /* change superblock version num */
@@ -192,6 +199,7 @@ typedef struct xfs_qoff_logformat {
 #define XFS_QMOPT_DOWARN        0x0000400 /* increase warning cnt if necessary */
 #define XFS_QMOPT_ILOCKED	0x0000800 /* inode is already locked (excl) */
 #define XFS_QMOPT_DQREPAIR	0x0001000 /* repair dquot, if damaged. */
+#define XFS_QMOPT_GQUOTA	0x0002000 /* group dquot requested */
 
 /*
  * flags to xfs_trans_mod_dquot to indicate which field needs to be
@@ -231,7 +239,8 @@ typedef struct xfs_qoff_logformat {
 #define XFS_TRANS_DQ_DELRTBCOUNT XFS_QMOPT_DELRTBCOUNT
 
 
-#define XFS_QMOPT_QUOTALL	(XFS_QMOPT_UQUOTA|XFS_QMOPT_GQUOTA)
+#define XFS_QMOPT_QUOTALL	\
+		(XFS_QMOPT_UQUOTA | XFS_QMOPT_PQUOTA | XFS_QMOPT_GQUOTA)
 #define XFS_QMOPT_RESBLK_MASK	(XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_RES_RTBLKS)
 
 #ifdef __KERNEL__
@@ -246,21 +255,33 @@ typedef struct xfs_qoff_logformat {
  */
 #define XFS_NOT_DQATTACHED(mp, ip) ((XFS_IS_UQUOTA_ON(mp) &&\
 				     (ip)->i_udquot == NULL) || \
-				    (XFS_IS_GQUOTA_ON(mp) && \
+				    (XFS_IS_OQUOTA_ON(mp) && \
 				     (ip)->i_gdquot == NULL))
 
-#define XFS_QM_NEED_QUOTACHECK(mp) ((XFS_IS_UQUOTA_ON(mp) && \
-				     (mp->m_sb.sb_qflags & \
-				      XFS_UQUOTA_CHKD) == 0) || \
-				    (XFS_IS_GQUOTA_ON(mp) && \
-				     (mp->m_sb.sb_qflags & \
-				      XFS_GQUOTA_CHKD) == 0))
+#define XFS_QM_NEED_QUOTACHECK(mp) \
+	((XFS_IS_UQUOTA_ON(mp) && \
+		(mp->m_sb.sb_qflags & XFS_UQUOTA_CHKD) == 0) || \
+	 (XFS_IS_GQUOTA_ON(mp) && \
+		((mp->m_sb.sb_qflags & XFS_OQUOTA_CHKD) == 0 || \
+		 (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT))) || \
+	 (XFS_IS_PQUOTA_ON(mp) && \
+		((mp->m_sb.sb_qflags & XFS_OQUOTA_CHKD) == 0 || \
+		 (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT))))
+
+#define XFS_MOUNT_QUOTA_SET1	(XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
+				 XFS_UQUOTA_CHKD|XFS_PQUOTA_ACCT|\
+				 XFS_OQUOTA_ENFD|XFS_OQUOTA_CHKD)
+
+#define XFS_MOUNT_QUOTA_SET2	(XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
+				 XFS_UQUOTA_CHKD|XFS_GQUOTA_ACCT|\
+				 XFS_OQUOTA_ENFD|XFS_OQUOTA_CHKD)
 
 #define XFS_MOUNT_QUOTA_ALL	(XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
-				 XFS_UQUOTA_CHKD|XFS_GQUOTA_ACCT|\
-				 XFS_GQUOTA_ENFD|XFS_GQUOTA_CHKD)
+				 XFS_UQUOTA_CHKD|XFS_PQUOTA_ACCT|\
+				 XFS_OQUOTA_ENFD|XFS_OQUOTA_CHKD|\
+				 XFS_GQUOTA_ACCT)
 #define XFS_MOUNT_QUOTA_MASK	(XFS_MOUNT_QUOTA_ALL | XFS_UQUOTA_ACTIVE | \
-				 XFS_GQUOTA_ACTIVE)
+				 XFS_GQUOTA_ACTIVE | XFS_PQUOTA_ACTIVE)
 
 
 /*
@@ -331,15 +352,8 @@ typedef struct xfs_dqtrxops {
 #define XFS_TRANS_UNRESERVE_AND_MOD_DQUOTS(mp, tp) \
 	XFS_DQTRXOP_VOID(mp, tp, qo_unreserve_and_mod_dquots)
 
-#define XFS_TRANS_RESERVE_BLKQUOTA(mp, tp, ip, nblks) \
-	XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, nblks, 0, \
-				XFS_QMOPT_RES_REGBLKS)
-#define XFS_TRANS_RESERVE_BLKQUOTA_FORCE(mp, tp, ip, nblks) \
-	XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, nblks, 0, \
-				XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES)
-#define XFS_TRANS_UNRESERVE_BLKQUOTA(mp, tp, ip, nblks) \
-	XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, -(nblks), 0, \
-				XFS_QMOPT_RES_REGBLKS)
+#define XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp, tp, ip, nblks, ninos, flags) \
+	XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, -(nblks), -(ninos), flags)
 #define XFS_TRANS_RESERVE_QUOTA(mp, tp, ud, gd, nb, ni, f) \
 	XFS_TRANS_RESERVE_QUOTA_BYDQUOTS(mp, tp, ud, gd, nb, ni, \
 				f | XFS_QMOPT_RES_REGBLKS)
diff --git a/fs/xfs/xfs_rename.c b/fs/xfs/xfs_rename.c
index cb13f9a..23b48ac 100644
--- a/fs/xfs/xfs_rename.c
+++ b/fs/xfs/xfs_rename.c
@@ -234,9 +234,6 @@ xfs_lock_for_rename(
 	return 0;
 }
 
-
-int rename_which_error_return = 0;
-
 /*
  * xfs_rename
  */
@@ -316,7 +313,6 @@ xfs_rename(
 			&num_inodes);
 
 	if (error) {
-		rename_which_error_return = __LINE__;
 		/*
 		 * We have nothing locked, no inode references, and
 		 * no transaction, so just get out.
@@ -332,7 +328,6 @@ xfs_rename(
 		 */
 		if (target_ip == NULL && (src_dp != target_dp) &&
 		    target_dp->i_d.di_nlink >= XFS_MAXLINK) {
-			rename_which_error_return = __LINE__;
 			error = XFS_ERROR(EMLINK);
 			xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
 			goto rele_return;
@@ -359,7 +354,6 @@ xfs_rename(
 				XFS_TRANS_PERM_LOG_RES, XFS_RENAME_LOG_COUNT);
 	}
 	if (error) {
-		rename_which_error_return = __LINE__;
 		xfs_trans_cancel(tp, 0);
 		goto rele_return;
 	}
@@ -369,7 +363,6 @@ xfs_rename(
 	 */
 	if ((error = XFS_QM_DQVOPRENAME(mp, inodes))) {
 		xfs_trans_cancel(tp, cancel_flags);
-		rename_which_error_return = __LINE__;
 		goto rele_return;
 	}
 
@@ -413,7 +406,6 @@ xfs_rename(
 		if (spaceres == 0 &&
 		    (error = XFS_DIR_CANENTER(mp, tp, target_dp, target_name,
 				target_namelen))) {
-			rename_which_error_return = __LINE__;
 			goto error_return;
 		}
 		/*
@@ -425,11 +417,9 @@ xfs_rename(
 					   target_namelen, src_ip->i_ino,
 					   &first_block, &free_list, spaceres);
 		if (error == ENOSPC) {
-			rename_which_error_return = __LINE__;
 			goto error_return;
 		}
 		if (error) {
-			rename_which_error_return = __LINE__;
 			goto abort_return;
 		}
 		xfs_ichgtime(target_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
@@ -437,7 +427,6 @@ xfs_rename(
 		if (new_parent && src_is_directory) {
 			error = xfs_bumplink(tp, target_dp);
 			if (error) {
-				rename_which_error_return = __LINE__;
 				goto abort_return;
 			}
 		}
@@ -455,7 +444,6 @@ xfs_rename(
 			if (!(XFS_DIR_ISEMPTY(target_ip->i_mount, target_ip)) ||
 			    (target_ip->i_d.di_nlink > 2)) {
 				error = XFS_ERROR(EEXIST);
-				rename_which_error_return = __LINE__;
 				goto error_return;
 			}
 		}
@@ -473,7 +461,6 @@ xfs_rename(
 			target_namelen, src_ip->i_ino, &first_block,
 			&free_list, spaceres);
 		if (error) {
-			rename_which_error_return = __LINE__;
 			goto abort_return;
 		}
 		xfs_ichgtime(target_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
@@ -484,7 +471,6 @@ xfs_rename(
 		 */
 		error = xfs_droplink(tp, target_ip);
 		if (error) {
-			rename_which_error_return = __LINE__;
 			goto abort_return;
 		}
 		target_ip_dropped = 1;
@@ -495,7 +481,6 @@ xfs_rename(
 			 */
 			error = xfs_droplink(tp, target_ip);
 			if (error) {
-				rename_which_error_return = __LINE__;
 				goto abort_return;
 			}
 		}
@@ -519,7 +504,6 @@ xfs_rename(
 					&free_list, spaceres);
 		ASSERT(error != EEXIST);
 		if (error) {
-			rename_which_error_return = __LINE__;
 			goto abort_return;
 		}
 		xfs_ichgtime(src_ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
@@ -550,7 +534,6 @@ xfs_rename(
 		 */
 		error = xfs_droplink(tp, src_dp);
 		if (error) {
-			rename_which_error_return = __LINE__;
 			goto abort_return;
 		}
 	}
@@ -558,7 +541,6 @@ xfs_rename(
 	error = XFS_DIR_REMOVENAME(mp, tp, src_dp, src_name, src_namelen,
 			src_ip->i_ino, &first_block, &free_list, spaceres);
 	if (error) {
-		rename_which_error_return = __LINE__;
 		goto abort_return;
 	}
 	xfs_ichgtime(src_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 3db0e22..06dfca5 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -332,25 +332,6 @@ undo_blocks:
 
 
 /*
- * This is called to set the a callback to be called when the given
- * transaction is committed to disk.  The transaction pointer and the
- * argument pointer will be passed to the callback routine.
- *
- * Only one callback can be associated with any single transaction.
- */
-void
-xfs_trans_callback(
-	xfs_trans_t		*tp,
-	xfs_trans_callback_t	callback,
-	void			*arg)
-{
-	ASSERT(tp->t_callback == NULL);
-	tp->t_callback = callback;
-	tp->t_callarg = arg;
-}
-
-
-/*
  * Record the indicated change to the given field for application
  * to the file system's superblock when the transaction commits.
  * For now, just store the change in the transaction structure.
@@ -551,7 +532,7 @@ xfs_trans_apply_sb_deltas(
  *
  * This is done efficiently with a single call to xfs_mod_incore_sb_batch().
  */
-void
+STATIC void
 xfs_trans_unreserve_and_mod_sb(
 	xfs_trans_t	*tp)
 {
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index bd37ccb..ec541d6 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -987,8 +987,6 @@ xfs_trans_t	*_xfs_trans_alloc(struct xfs_mount *, uint);
 xfs_trans_t	*xfs_trans_dup(xfs_trans_t *);
 int		xfs_trans_reserve(xfs_trans_t *, uint, uint, uint,
 				  uint, uint);
-void		xfs_trans_callback(xfs_trans_t *,
-				   void (*)(xfs_trans_t *, void *), void *);
 void		xfs_trans_mod_sb(xfs_trans_t *, uint, long);
 struct xfs_buf	*xfs_trans_get_buf(xfs_trans_t *, struct xfs_buftarg *, xfs_daddr_t,
 				   int, uint);
@@ -1010,7 +1008,6 @@ int		xfs_trans_iget(struct xfs_mount *, xfs_trans_t *,
 			       xfs_ino_t , uint, uint, struct xfs_inode **);
 void		xfs_trans_ijoin(xfs_trans_t *, struct xfs_inode *, uint);
 void		xfs_trans_ihold(xfs_trans_t *, struct xfs_inode *);
-void		xfs_trans_ihold_release(xfs_trans_t *, struct xfs_inode *);
 void		xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
 void		xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
 struct xfs_efi_log_item	*xfs_trans_get_efi(xfs_trans_t *, uint);
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index a9682b9..144da7a 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -976,6 +976,7 @@ xfs_trans_dquot_buf(
 	ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
 	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
 	ASSERT(type == XFS_BLI_UDQUOT_BUF ||
+	       type == XFS_BLI_PDQUOT_BUF ||
 	       type == XFS_BLI_GDQUOT_BUF);
 
 	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index e2c3706f..7e7631c 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -253,24 +253,6 @@ xfs_trans_ihold(
 	ip->i_itemp->ili_flags |= XFS_ILI_HOLD;
 }
 
-/*
- * Cancel the previous inode hold request made on this inode
- * for this transaction.
- */
-/*ARGSUSED*/
-void
-xfs_trans_ihold_release(
-	xfs_trans_t	*tp,
-	xfs_inode_t	*ip)
-{
-	ASSERT(ip->i_transp == tp);
-	ASSERT(ip->i_itemp != NULL);
-	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
-	ASSERT(ip->i_itemp->ili_flags & XFS_ILI_HOLD);
-
-	ip->i_itemp->ili_flags &= ~XFS_ILI_HOLD;
-}
-
 
 /*
  * This is called to mark the fields indicated in fieldmask as needing
diff --git a/fs/xfs/xfs_types.h b/fs/xfs/xfs_types.h
index e4bf711..16f5371 100644
--- a/fs/xfs/xfs_types.h
+++ b/fs/xfs/xfs_types.h
@@ -55,7 +55,7 @@ typedef signed long long int	__int64_t;
 typedef unsigned long long int	__uint64_t;
 
 typedef enum { B_FALSE,B_TRUE }	boolean_t;
-typedef __int64_t		prid_t;		/* project ID */
+typedef __uint32_t		prid_t;		/* project ID */
 typedef __uint32_t		inst_t;		/* an instruction */
 
 typedef __s64			xfs_off_t;	/* <file offset> type */
diff --git a/fs/xfs/xfs_utils.c b/fs/xfs/xfs_utils.c
index d1f8146..11351f0 100644
--- a/fs/xfs/xfs_utils.c
+++ b/fs/xfs/xfs_utils.c
@@ -428,7 +428,7 @@ xfs_truncate_file(
 		if (ip->i_ino != mp->m_sb.sb_uquotino)
 			ASSERT(ip->i_udquot);
 	}
-	if (XFS_IS_GQUOTA_ON(mp)) {
+	if (XFS_IS_OQUOTA_ON(mp)) {
 		if (ip->i_ino != mp->m_sb.sb_gquotino)
 			ASSERT(ip->i_gdquot);
 	}
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index b537366..42bcc02 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -368,16 +368,6 @@ xfs_finish_flags(
 	}
 
 	/*
-	 * disallow mount attempts with (IRIX) project quota enabled
-	 */
-	if (XFS_SB_VERSION_HASQUOTA(&mp->m_sb) &&
-	    (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT)) {
-		cmn_err(CE_WARN,
-	"XFS: cannot mount a filesystem with IRIX project quota enabled");
-		return XFS_ERROR(ENOSYS);
-	}
-
-	/*
 	 * check for shared mount.
 	 */
 	if (ap->flags & XFSMNT_SHARED) {
@@ -622,7 +612,34 @@ out:
 	return XFS_ERROR(error);
 }
 
-#define REMOUNT_READONLY_FLAGS	(SYNC_REMOUNT|SYNC_ATTR|SYNC_WAIT)
+STATIC int
+xfs_quiesce_fs(
+	xfs_mount_t		*mp)
+{
+	int			count = 0, pincount;
+		
+	xfs_refcache_purge_mp(mp);
+	xfs_flush_buftarg(mp->m_ddev_targp, 0);
+	xfs_finish_reclaim_all(mp, 0);
+
+	/* This loop must run at least twice.
+	 * The first instance of the loop will flush
+	 * most meta data but that will generate more
+	 * meta data (typically directory updates).
+	 * Which then must be flushed and logged before
+	 * we can write the unmount record.
+	 */ 
+	do {
+		xfs_syncsub(mp, SYNC_REMOUNT|SYNC_ATTR|SYNC_WAIT, 0, NULL);
+		pincount = xfs_flush_buftarg(mp->m_ddev_targp, 1);
+		if (!pincount) {
+			delay(50);
+			count++;
+		}
+	} while (count < 2);
+
+	return 0;
+}
 
 STATIC int
 xfs_mntupdate(
@@ -632,8 +649,7 @@ xfs_mntupdate(
 {
 	struct vfs	*vfsp = bhvtovfs(bdp);
 	xfs_mount_t	*mp = XFS_BHVTOM(bdp);
-	int		pincount, error;
-	int		count = 0;
+	int		error;
 
 	if (args->flags & XFSMNT_NOATIME)
 		mp->m_flags |= XFS_MOUNT_NOATIME;
@@ -645,25 +661,7 @@ xfs_mntupdate(
 	}
 
 	if (*flags & MS_RDONLY) {
-		xfs_refcache_purge_mp(mp);
-		xfs_flush_buftarg(mp->m_ddev_targp, 0);
-		xfs_finish_reclaim_all(mp, 0);
-
-		/* This loop must run at least twice.
-		 * The first instance of the loop will flush
-		 * most meta data but that will generate more
-		 * meta data (typically directory updates).
-		 * Which then must be flushed and logged before
-		 * we can write the unmount record.
-		 */ 
-		do {
-			VFS_SYNC(vfsp, REMOUNT_READONLY_FLAGS, NULL, error);
-			pincount = xfs_flush_buftarg(mp->m_ddev_targp, 1);
-			if (!pincount) {
-				delay(50);
-				count++;
-			}
-		} while (count < 2);
+		xfs_quiesce_fs(mp);
 
 		/* Ok now write out an unmount record */
 		xfs_log_unmount_write(mp);
@@ -879,10 +877,12 @@ xfs_sync(
 	int		flags,
 	cred_t		*credp)
 {
-	xfs_mount_t	*mp;
+	xfs_mount_t	*mp = XFS_BHVTOM(bdp);
 
-	mp = XFS_BHVTOM(bdp);
-	return (xfs_syncsub(mp, flags, 0, NULL));
+	if (unlikely(flags == SYNC_QUIESCE))
+		return xfs_quiesce_fs(mp);
+	else
+		return xfs_syncsub(mp, flags, 0, NULL);
 }
 
 /*
@@ -1681,7 +1681,7 @@ suffix_strtoul(const char *cp, char **endp, unsigned int base)
 	return simple_strtoul(cp, endp, base) << shift_left_factor;
 }
 
-int
+STATIC int
 xfs_parseargs(
 	struct bhv_desc		*bhv,
 	char			*options,
@@ -1867,7 +1867,7 @@ printk("XFS: irixsgid is now a sysctl(2) variable, option is deprecated.\n");
 	return 0;
 }
 
-int
+STATIC int
 xfs_showargs(
 	struct bhv_desc		*bhv,
 	struct seq_file		*m)
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 25a5266..1377c86 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.  All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of version 2 of the GNU General Public License as
@@ -351,21 +351,28 @@ xfs_setattr(
 	 * If the IDs do change before we take the ilock, we're covered
 	 * because the i_*dquot fields will get updated anyway.
 	 */
-	if (XFS_IS_QUOTA_ON(mp) && (mask & (XFS_AT_UID|XFS_AT_GID))) {
+	if (XFS_IS_QUOTA_ON(mp) &&
+	    (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID))) {
 		uint	qflags = 0;
 
-		if (mask & XFS_AT_UID) {
+		if ((mask & XFS_AT_UID) && XFS_IS_UQUOTA_ON(mp)) {
 			uid = vap->va_uid;
 			qflags |= XFS_QMOPT_UQUOTA;
 		} else {
 			uid = ip->i_d.di_uid;
 		}
-		if (mask & XFS_AT_GID) {
+		if ((mask & XFS_AT_GID) && XFS_IS_GQUOTA_ON(mp)) {
 			gid = vap->va_gid;
 			qflags |= XFS_QMOPT_GQUOTA;
 		}  else {
 			gid = ip->i_d.di_gid;
 		}
+		if ((mask & XFS_AT_PROJID) && XFS_IS_PQUOTA_ON(mp)) {
+			projid = vap->va_projid;
+			qflags |= XFS_QMOPT_PQUOTA;
+		}  else {
+			projid = ip->i_d.di_projid;
+		}
 		/*
 		 * We take a reference when we initialize udqp and gdqp,
 		 * so it is important that we never blindly double trip on
@@ -373,7 +380,8 @@ xfs_setattr(
 		 */
 		ASSERT(udqp == NULL);
 		ASSERT(gdqp == NULL);
-		code = XFS_QM_DQVOPALLOC(mp, ip, uid,gid, qflags, &udqp, &gdqp);
+		code = XFS_QM_DQVOPALLOC(mp, ip, uid, gid, projid, qflags,
+					 &udqp, &gdqp);
 		if (code)
 			return (code);
 	}
@@ -499,8 +507,6 @@ xfs_setattr(
 		 * that the group ID supplied to the chown() function
 		 * shall be equal to either the group ID or one of the
 		 * supplementary group IDs of the calling process.
-		 *
-		 * XXX: How does restricted_chown affect projid?
 		 */
 		if (restricted_chown &&
 		    (iuid != uid || (igid != gid &&
@@ -510,10 +516,11 @@ xfs_setattr(
 			goto error_return;
 		}
 		/*
-		 * Do a quota reservation only if uid or gid is actually
+		 * Do a quota reservation only if uid/projid/gid is actually
 		 * going to change.
 		 */
 		if ((XFS_IS_UQUOTA_ON(mp) && iuid != uid) ||
+		    (XFS_IS_PQUOTA_ON(mp) && iprojid != projid) ||
 		    (XFS_IS_GQUOTA_ON(mp) && igid != gid)) {
 			ASSERT(tp);
 			code = XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, udqp, gdqp,
@@ -774,6 +781,7 @@ xfs_setattr(
 		}
 		if (igid != gid) {
 			if (XFS_IS_GQUOTA_ON(mp)) {
+				ASSERT(!XFS_IS_PQUOTA_ON(mp));
 				ASSERT(mask & XFS_AT_GID);
 				ASSERT(gdqp);
 				olddquot2 = XFS_QM_DQVOPCHOWN(mp, tp, ip,
@@ -782,6 +790,13 @@ xfs_setattr(
 			ip->i_d.di_gid = gid;
 		}
 		if (iprojid != projid) {
+			if (XFS_IS_PQUOTA_ON(mp)) {
+				ASSERT(!XFS_IS_GQUOTA_ON(mp));
+				ASSERT(mask & XFS_AT_PROJID);
+				ASSERT(gdqp);
+				olddquot2 = XFS_QM_DQVOPCHOWN(mp, tp, ip,
+							&ip->i_gdquot, gdqp);
+			}
 			ip->i_d.di_projid = projid;
 			/*
 			 * We may have to rev the inode as well as
@@ -843,6 +858,8 @@ xfs_setattr(
 				di_flags |= XFS_DIFLAG_NOATIME;
 			if (vap->va_xflags & XFS_XFLAG_NODUMP)
 				di_flags |= XFS_DIFLAG_NODUMP;
+			if (vap->va_xflags & XFS_XFLAG_PROJINHERIT)
+				di_flags |= XFS_DIFLAG_PROJINHERIT;
 			if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
 				if (vap->va_xflags & XFS_XFLAG_RTINHERIT)
 					di_flags |= XFS_DIFLAG_RTINHERIT;
@@ -1898,7 +1915,9 @@ xfs_create(
 	/* Return through std_return after this point. */
 
 	udqp = gdqp = NULL;
-	if (vap->va_mask & XFS_AT_PROJID)
+	if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
+		prid = dp->i_d.di_projid;
+	else if (vap->va_mask & XFS_AT_PROJID)
 		prid = (xfs_prid_t)vap->va_projid;
 	else
 		prid = (xfs_prid_t)dfltprid;
@@ -1907,7 +1926,7 @@ xfs_create(
 	 * Make sure that we have allocated dquot(s) on disk.
 	 */
 	error = XFS_QM_DQVOPALLOC(mp, dp,
-			current_fsuid(credp), current_fsgid(credp),
+			current_fsuid(credp), current_fsgid(credp), prid,
 			XFS_QMOPT_QUOTALL|XFS_QMOPT_INHERIT, &udqp, &gdqp);
 	if (error)
 		goto std_return;
@@ -2604,17 +2623,7 @@ xfs_link(
 	if (src_vp->v_type == VDIR)
 		return XFS_ERROR(EPERM);
 
-	/*
-	 * For now, manually find the XFS behavior descriptor for
-	 * the source vnode.  If it doesn't exist then something
-	 * is wrong and we should just return an error.
-	 * Eventually we need to figure out how link is going to
-	 * work in the face of stacked vnodes.
-	 */
 	src_bdp = vn_bhv_lookup_unlocked(VN_BHV_HEAD(src_vp), &xfs_vnodeops);
-	if (src_bdp == NULL) {
-		return XFS_ERROR(EXDEV);
-	}
 	sip = XFS_BHVTOI(src_bdp);
 	tdp = XFS_BHVTOI(target_dir_bdp);
 	mp = tdp->i_mount;
@@ -2681,6 +2690,17 @@ xfs_link(
 		goto error_return;
 	}
 
+	/*
+	 * If we are using project inheritance, we only allow hard link
+	 * creation in our tree when the project IDs are the same; else
+	 * the tree quota mechanism could be circumvented.
+	 */
+	if (unlikely((tdp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) &&
+		     (tdp->i_d.di_projid != sip->i_d.di_projid))) {
+		error = XFS_ERROR(EPERM);
+		goto error_return;
+	}
+
 	if (resblks == 0 &&
 	    (error = XFS_DIR_CANENTER(mp, tp, tdp, target_name,
 			target_namelen)))
@@ -2803,7 +2823,9 @@ xfs_mkdir(
 
 	mp = dp->i_mount;
 	udqp = gdqp = NULL;
-	if (vap->va_mask & XFS_AT_PROJID)
+	if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
+		prid = dp->i_d.di_projid;
+	else if (vap->va_mask & XFS_AT_PROJID)
 		prid = (xfs_prid_t)vap->va_projid;
 	else
 		prid = (xfs_prid_t)dfltprid;
@@ -2812,7 +2834,7 @@ xfs_mkdir(
 	 * Make sure that we have allocated dquot(s) on disk.
 	 */
 	error = XFS_QM_DQVOPALLOC(mp, dp,
-			current_fsuid(credp), current_fsgid(credp),
+			current_fsuid(credp), current_fsgid(credp), prid,
 			XFS_QMOPT_QUOTALL | XFS_QMOPT_INHERIT, &udqp, &gdqp);
 	if (error)
 		goto std_return;
@@ -3357,7 +3379,9 @@ xfs_symlink(
 	/* Return through std_return after this point. */
 
 	udqp = gdqp = NULL;
-	if (vap->va_mask & XFS_AT_PROJID)
+	if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
+		prid = dp->i_d.di_projid;
+	else if (vap->va_mask & XFS_AT_PROJID)
 		prid = (xfs_prid_t)vap->va_projid;
 	else
 		prid = (xfs_prid_t)dfltprid;
@@ -3366,7 +3390,7 @@ xfs_symlink(
 	 * Make sure that we have allocated dquot(s) on disk.
 	 */
 	error = XFS_QM_DQVOPALLOC(mp, dp,
-			current_fsuid(credp), current_fsgid(credp),
+			current_fsuid(credp), current_fsgid(credp), prid,
 			XFS_QMOPT_QUOTALL | XFS_QMOPT_INHERIT, &udqp, &gdqp);
 	if (error)
 		goto std_return;
@@ -4028,7 +4052,7 @@ xfs_finish_reclaim_all(xfs_mount_t *mp, int noblock)
  *      errno on error
  *
  */
-int
+STATIC int
 xfs_alloc_file_space(
 	xfs_inode_t		*ip,
 	xfs_off_t		offset,
@@ -4151,9 +4175,8 @@ retry:
 			break;
 		}
 		xfs_ilock(ip, XFS_ILOCK_EXCL);
-		error = XFS_TRANS_RESERVE_QUOTA_BYDQUOTS(mp, tp,
-				ip->i_udquot, ip->i_gdquot, resblks, 0, rt ?
-				XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS);
+		error = XFS_TRANS_RESERVE_QUOTA(mp, tp,
+				ip->i_udquot, ip->i_gdquot, resblks, 0, 0);
 		if (error)
 			goto error1;
 
@@ -4305,6 +4328,7 @@ xfs_free_file_space(
 	xfs_off_t		len,
 	int			attr_flags)
 {
+	vnode_t			*vp;
 	int			committed;
 	int			done;
 	xfs_off_t		end_dmi_offset;
@@ -4325,9 +4349,11 @@ xfs_free_file_space(
 	xfs_trans_t		*tp;
 	int			need_iolock = 1;
 
-	vn_trace_entry(XFS_ITOV(ip), __FUNCTION__, (inst_t *)__return_address);
+	vp = XFS_ITOV(ip);
 	mp = ip->i_mount;
 
+	vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+
 	if ((error = XFS_QM_DQATTACH(mp, ip, 0)))
 		return error;
 
@@ -4344,7 +4370,7 @@ xfs_free_file_space(
 	    DM_EVENT_ENABLED(XFS_MTOVFS(mp), ip, DM_EVENT_WRITE)) {
 		if (end_dmi_offset > ip->i_d.di_size)
 			end_dmi_offset = ip->i_d.di_size;
-		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, XFS_ITOV(ip),
+		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, vp,
 				offset, end_dmi_offset - offset,
 				AT_DELAY_FLAG(attr_flags), NULL);
 		if (error)
@@ -4363,7 +4389,14 @@ xfs_free_file_space(
 	ioffset = offset & ~(rounding - 1);
 	if (ilen & (rounding - 1))
 		ilen = (ilen + rounding) & ~(rounding - 1);
-	xfs_inval_cached_pages(XFS_ITOV(ip), &(ip->i_iocore), ioffset, 0, 0);
+
+	if (VN_CACHED(vp) != 0) {
+		xfs_inval_cached_trace(&ip->i_iocore, ioffset, -1,
+				ctooff(offtoct(ioffset)), -1);
+		VOP_FLUSHINVAL_PAGES(vp, ctooff(offtoct(ioffset)),
+				-1, FI_REMAPF_LOCKED);
+	}
+
 	/*
 	 * Need to zero the stuff we're not freeing, on disk.
 	 * If its a realtime file & can't use unwritten extents then we