Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull VFS patches (part 1) from Al Viro:
 "The major change in this pile is ->readdir() replacement with
  ->iterate(), dealing with ->f_pos races in ->readdir() instances for
  good.

  There's a lot more, but I'd prefer to split the pull request into
  several stages and this is the first obvious cutoff point."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (67 commits)
  [readdir] constify ->actor
  [readdir] ->readdir() is gone
  [readdir] convert ecryptfs
  [readdir] convert coda
  [readdir] convert ocfs2
  [readdir] convert fatfs
  [readdir] convert xfs
  [readdir] convert btrfs
  [readdir] convert hostfs
  [readdir] convert afs
  [readdir] convert ncpfs
  [readdir] convert hfsplus
  [readdir] convert hfs
  [readdir] convert befs
  [readdir] convert cifs
  [readdir] convert freevxfs
  [readdir] convert fuse
  [readdir] convert hpfs
  reiserfs: switch reiserfs_readdir_dentry to inode
  reiserfs: is_privroot_deh() needs only directory inode, actually
  ...

9 files changed, 88 insertions, 12 deletions

diff --git a/drivers/block/cryptoloop.c b/drivers/block/cryptoloop.c
index 8b6bb76..99e773c 100644
--- a/drivers/block/cryptoloop.c
+++ b/drivers/block/cryptoloop.c
@@ -25,9 +25,9 @@
 #include <linux/string.h>
 #include <linux/crypto.h>
 #include <linux/blkdev.h>
-#include <linux/loop.h>
 #include <linux/scatterlist.h>
 #include <asm/uaccess.h>
+#include "loop.h"
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("loop blockdevice transferfunction adaptor / CryptoAPI");
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index d92d50f..40e7155 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -63,7 +63,6 @@
 #include <linux/init.h>
 #include <linux/swap.h>
 #include <linux/slab.h>
-#include <linux/loop.h>
 #include <linux/compat.h>
 #include <linux/suspend.h>
 #include <linux/freezer.h>
@@ -76,6 +75,7 @@
 #include <linux/sysfs.h>
 #include <linux/miscdevice.h>
 #include <linux/falloc.h>
+#include "loop.h"
 
 #include <asm/uaccess.h>
 
diff --git a/drivers/block/loop.h b/drivers/block/loop.h
new file mode 100644
index 0000000..90df5d6
--- /dev/null
+++ b/drivers/block/loop.h
@@ -0,0 +1,85 @@
+/*
+ * loop.h
+ *
+ * Written by Theodore Ts'o, 3/29/93.
+ *
+ * Copyright 1993 by Theodore Ts'o.  Redistribution of this file is
+ * permitted under the GNU General Public License.
+ */
+#ifndef _LINUX_LOOP_H
+#define _LINUX_LOOP_H
+
+#include <linux/bio.h>
+#include <linux/blkdev.h>
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
+#include <uapi/linux/loop.h>
+
+/* Possible states of device */
+enum {
+	Lo_unbound,
+	Lo_bound,
+	Lo_rundown,
+};
+
+struct loop_func_table;
+
+struct loop_device {
+	int		lo_number;
+	int		lo_refcnt;
+	loff_t		lo_offset;
+	loff_t		lo_sizelimit;
+	int		lo_flags;
+	int		(*transfer)(struct loop_device *, int cmd,
+				    struct page *raw_page, unsigned raw_off,
+				    struct page *loop_page, unsigned loop_off,
+				    int size, sector_t real_block);
+	char		lo_file_name[LO_NAME_SIZE];
+	char		lo_crypt_name[LO_NAME_SIZE];
+	char		lo_encrypt_key[LO_KEY_SIZE];
+	int		lo_encrypt_key_size;
+	struct loop_func_table *lo_encryption;
+	__u32           lo_init[2];
+	kuid_t		lo_key_owner;	/* Who set the key */
+	int		(*ioctl)(struct loop_device *, int cmd, 
+				 unsigned long arg); 
+
+	struct file *	lo_backing_file;
+	struct block_device *lo_device;
+	unsigned	lo_blocksize;
+	void		*key_data; 
+
+	gfp_t		old_gfp_mask;
+
+	spinlock_t		lo_lock;
+	struct bio_list		lo_bio_list;
+	unsigned int		lo_bio_count;
+	int			lo_state;
+	struct mutex		lo_ctl_mutex;
+	struct task_struct	*lo_thread;
+	wait_queue_head_t	lo_event;
+	/* wait queue for incoming requests */
+	wait_queue_head_t	lo_req_wait;
+
+	struct request_queue	*lo_queue;
+	struct gendisk		*lo_disk;
+};
+
+/* Support for loadable transfer modules */
+struct loop_func_table {
+	int number;	/* filter type */ 
+	int (*transfer)(struct loop_device *lo, int cmd,
+			struct page *raw_page, unsigned raw_off,
+			struct page *loop_page, unsigned loop_off,
+			int size, sector_t real_block);
+	int (*init)(struct loop_device *, const struct loop_info64 *); 
+	/* release is called from loop_unregister_transfer or clr_fd */
+	int (*release)(struct loop_device *); 
+	int (*ioctl)(struct loop_device *, int cmd, unsigned long arg);
+	struct module *owner;
+}; 
+
+int loop_register_transfer(struct loop_func_table *funcs);
+int loop_unregister_transfer(int number); 
+
+#endif
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
index 1d4f7c9..67969e2 100644
--- a/drivers/gpu/drm/drm_vm.c
+++ b/drivers/gpu/drm/drm_vm.c
@@ -617,7 +617,6 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
 	case _DRM_FRAME_BUFFER:
 	case _DRM_REGISTERS:
 		offset = drm_core_get_reg_ofs(dev);
-		vma->vm_flags |= VM_IO;	/* not in core dump */
 		vma->vm_page_prot = drm_io_prot(map->type, vma);
 		if (io_remap_pfn_range(vma, vma->vm_start,
 				       (map->offset + offset) >> PAGE_SHIFT,
diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
index 004ecdf..ada49ed 100644
--- a/drivers/gpu/drm/i810/i810_dma.c
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -97,7 +97,7 @@ static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
 	buf = dev_priv->mmap_buffer;
 	buf_priv = buf->dev_private;
 
-	vma->vm_flags |= (VM_IO | VM_DONTCOPY);
+	vma->vm_flags |= VM_DONTCOPY;
 
 	buf_priv->currently_mapped = I810_BUF_MAPPED;
 
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index ac37254..c5179e2 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -499,7 +499,6 @@ static int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma)
 	}
 
 	vma->vm_private_data = vdev;
-	vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	vma->vm_pgoff = (pci_resource_start(pdev, index) >> PAGE_SHIFT) + pgoff;
 
diff --git a/drivers/video/au1100fb.c b/drivers/video/au1100fb.c
index 700cac0..ebeb971 100644
--- a/drivers/video/au1100fb.c
+++ b/drivers/video/au1100fb.c
@@ -385,8 +385,6 @@ int au1100fb_fb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	pgprot_val(vma->vm_page_prot) |= (6 << 9); //CCA=6
 
-	vma->vm_flags |= VM_IO;
-
 	if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
 				vma->vm_end - vma->vm_start,
 				vma->vm_page_prot)) {
diff --git a/drivers/video/au1200fb.c b/drivers/video/au1200fb.c
index 1b59054..301224e 100644
--- a/drivers/video/au1200fb.c
+++ b/drivers/video/au1200fb.c
@@ -1258,13 +1258,9 @@ static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
 
-	vma->vm_flags |= VM_IO;
-
 	return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
 				  vma->vm_end - vma->vm_start,
 				  vma->vm_page_prot);
-
-	return 0;
 }
 
 static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
diff --git a/drivers/video/pxa3xx-gcu.c b/drivers/video/pxa3xx-gcu.c
index 97563c5..7cf0b13 100644
--- a/drivers/video/pxa3xx-gcu.c
+++ b/drivers/video/pxa3xx-gcu.c
@@ -494,7 +494,6 @@ pxa3xx_gcu_misc_mmap(struct file *file, struct vm_area_struct *vma)
 		if (size != resource_size(priv->resource_mem))
 			return -EINVAL;
 
-		vma->vm_flags |= VM_IO;
 		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
 		return io_remap_pfn_range(vma, vma->vm_start,