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-rw-r--r--fs/btrfs/backref.c8
-rw-r--r--fs/btrfs/disk-io.c4
-rw-r--r--fs/btrfs/export.c10
-rw-r--r--fs/btrfs/extent-tree.c9
-rw-r--r--fs/btrfs/extent_io.c19
-rw-r--r--fs/btrfs/ioctl.c5
-rw-r--r--fs/btrfs/send.c8
-rw-r--r--fs/btrfs/transaction.c1
-rw-r--r--fs/btrfs/transaction.h1
-rw-r--r--fs/btrfs/volumes.h8
-rw-r--r--fs/cifs/cifsfs.h2
-rw-r--r--fs/cifs/file.c6
-rw-r--r--fs/cifs/inode.c34
-rw-r--r--fs/cifs/smb2pdu.c2
-rw-r--r--fs/dax.c70
-rw-r--r--fs/ext4/Kconfig2
-rw-r--r--fs/ext4/readpage.c4
-rw-r--r--fs/mpage.c15
-rw-r--r--fs/namei.c8
-rw-r--r--fs/nfs/nfs4proc.c15
-rw-r--r--fs/nfs/nfs4state.c3
-rw-r--r--fs/nfs/nfs4trace.h2
-rw-r--r--fs/nfs/write.c14
-rw-r--r--fs/nfsd/blocklayout.c8
-rw-r--r--fs/ramfs/file-nommu.c5
25 files changed, 129 insertions, 134 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index ecbc63d..9a2ec79 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1828,7 +1828,6 @@ static int iterate_inode_extrefs(u64 inum, struct btrfs_root *fs_root,
int found = 0;
struct extent_buffer *eb;
struct btrfs_inode_extref *extref;
- struct extent_buffer *leaf;
u32 item_size;
u32 cur_offset;
unsigned long ptr;
@@ -1856,9 +1855,8 @@ static int iterate_inode_extrefs(u64 inum, struct btrfs_root *fs_root,
btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
btrfs_release_path(path);
- leaf = path->nodes[0];
- item_size = btrfs_item_size_nr(leaf, slot);
- ptr = btrfs_item_ptr_offset(leaf, slot);
+ item_size = btrfs_item_size_nr(eb, slot);
+ ptr = btrfs_item_ptr_offset(eb, slot);
cur_offset = 0;
while (cur_offset < item_size) {
@@ -1872,7 +1870,7 @@ static int iterate_inode_extrefs(u64 inum, struct btrfs_root *fs_root,
if (ret)
break;
- cur_offset += btrfs_inode_extref_name_len(leaf, extref);
+ cur_offset += btrfs_inode_extref_name_len(eb, extref);
cur_offset += sizeof(*extref);
}
btrfs_tree_read_unlock_blocking(eb);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 295795a..1e60d00 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2847,6 +2847,8 @@ int open_ctree(struct super_block *sb,
!extent_buffer_uptodate(chunk_root->node)) {
printk(KERN_ERR "BTRFS: failed to read chunk root on %s\n",
sb->s_id);
+ if (!IS_ERR(chunk_root->node))
+ free_extent_buffer(chunk_root->node);
chunk_root->node = NULL;
goto fail_tree_roots;
}
@@ -2885,6 +2887,8 @@ retry_root_backup:
!extent_buffer_uptodate(tree_root->node)) {
printk(KERN_WARNING "BTRFS: failed to read tree root on %s\n",
sb->s_id);
+ if (!IS_ERR(tree_root->node))
+ free_extent_buffer(tree_root->node);
tree_root->node = NULL;
goto recovery_tree_root;
}
diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c
index 8d05220..2513a7f 100644
--- a/fs/btrfs/export.c
+++ b/fs/btrfs/export.c
@@ -112,11 +112,11 @@ static struct dentry *btrfs_fh_to_parent(struct super_block *sb, struct fid *fh,
u32 generation;
if (fh_type == FILEID_BTRFS_WITH_PARENT) {
- if (fh_len != BTRFS_FID_SIZE_CONNECTABLE)
+ if (fh_len < BTRFS_FID_SIZE_CONNECTABLE)
return NULL;
root_objectid = fid->root_objectid;
} else if (fh_type == FILEID_BTRFS_WITH_PARENT_ROOT) {
- if (fh_len != BTRFS_FID_SIZE_CONNECTABLE_ROOT)
+ if (fh_len < BTRFS_FID_SIZE_CONNECTABLE_ROOT)
return NULL;
root_objectid = fid->parent_root_objectid;
} else
@@ -136,11 +136,11 @@ static struct dentry *btrfs_fh_to_dentry(struct super_block *sb, struct fid *fh,
u32 generation;
if ((fh_type != FILEID_BTRFS_WITH_PARENT ||
- fh_len != BTRFS_FID_SIZE_CONNECTABLE) &&
+ fh_len < BTRFS_FID_SIZE_CONNECTABLE) &&
(fh_type != FILEID_BTRFS_WITH_PARENT_ROOT ||
- fh_len != BTRFS_FID_SIZE_CONNECTABLE_ROOT) &&
+ fh_len < BTRFS_FID_SIZE_CONNECTABLE_ROOT) &&
(fh_type != FILEID_BTRFS_WITHOUT_PARENT ||
- fh_len != BTRFS_FID_SIZE_NON_CONNECTABLE))
+ fh_len < BTRFS_FID_SIZE_NON_CONNECTABLE))
return NULL;
objectid = fid->objectid;
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 9f96042..601d7d4 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2828,6 +2828,7 @@ int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
struct btrfs_delayed_ref_head *head;
int ret;
int run_all = count == (unsigned long)-1;
+ bool can_flush_pending_bgs = trans->can_flush_pending_bgs;
/* We'll clean this up in btrfs_cleanup_transaction */
if (trans->aborted)
@@ -2844,6 +2845,7 @@ again:
#ifdef SCRAMBLE_DELAYED_REFS
delayed_refs->run_delayed_start = find_middle(&delayed_refs->root);
#endif
+ trans->can_flush_pending_bgs = false;
ret = __btrfs_run_delayed_refs(trans, root, count);
if (ret < 0) {
btrfs_abort_transaction(trans, root, ret);
@@ -2893,6 +2895,7 @@ again:
}
out:
assert_qgroups_uptodate(trans);
+ trans->can_flush_pending_bgs = can_flush_pending_bgs;
return 0;
}
@@ -4306,7 +4309,8 @@ out:
* the block groups that were made dirty during the lifetime of the
* transaction.
*/
- if (trans->chunk_bytes_reserved >= (2 * 1024 * 1024ull)) {
+ if (trans->can_flush_pending_bgs &&
+ trans->chunk_bytes_reserved >= (2 * 1024 * 1024ull)) {
btrfs_create_pending_block_groups(trans, trans->root);
btrfs_trans_release_chunk_metadata(trans);
}
@@ -9560,7 +9564,9 @@ void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans,
struct btrfs_block_group_item item;
struct btrfs_key key;
int ret = 0;
+ bool can_flush_pending_bgs = trans->can_flush_pending_bgs;
+ trans->can_flush_pending_bgs = false;
list_for_each_entry_safe(block_group, tmp, &trans->new_bgs, bg_list) {
if (ret)
goto next;
@@ -9581,6 +9587,7 @@ void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans,
next:
list_del_init(&block_group->bg_list);
}
+ trans->can_flush_pending_bgs = can_flush_pending_bgs;
}
int btrfs_make_block_group(struct btrfs_trans_handle *trans,
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index e2357e3..3915c94 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3132,12 +3132,12 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree,
get_extent_t *get_extent,
struct extent_map **em_cached,
struct bio **bio, int mirror_num,
- unsigned long *bio_flags, int rw)
+ unsigned long *bio_flags, int rw,
+ u64 *prev_em_start)
{
struct inode *inode;
struct btrfs_ordered_extent *ordered;
int index;
- u64 prev_em_start = (u64)-1;
inode = pages[0]->mapping->host;
while (1) {
@@ -3153,7 +3153,7 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree,
for (index = 0; index < nr_pages; index++) {
__do_readpage(tree, pages[index], get_extent, em_cached, bio,
- mirror_num, bio_flags, rw, &prev_em_start);
+ mirror_num, bio_flags, rw, prev_em_start);
page_cache_release(pages[index]);
}
}
@@ -3163,7 +3163,8 @@ static void __extent_readpages(struct extent_io_tree *tree,
int nr_pages, get_extent_t *get_extent,
struct extent_map **em_cached,
struct bio **bio, int mirror_num,
- unsigned long *bio_flags, int rw)
+ unsigned long *bio_flags, int rw,
+ u64 *prev_em_start)
{
u64 start = 0;
u64 end = 0;
@@ -3184,7 +3185,7 @@ static void __extent_readpages(struct extent_io_tree *tree,
index - first_index, start,
end, get_extent, em_cached,
bio, mirror_num, bio_flags,
- rw);
+ rw, prev_em_start);
start = page_start;
end = start + PAGE_CACHE_SIZE - 1;
first_index = index;
@@ -3195,7 +3196,8 @@ static void __extent_readpages(struct extent_io_tree *tree,
__do_contiguous_readpages(tree, &pages[first_index],
index - first_index, start,
end, get_extent, em_cached, bio,
- mirror_num, bio_flags, rw);
+ mirror_num, bio_flags, rw,
+ prev_em_start);
}
static int __extent_read_full_page(struct extent_io_tree *tree,
@@ -4207,6 +4209,7 @@ int extent_readpages(struct extent_io_tree *tree,
struct page *page;
struct extent_map *em_cached = NULL;
int nr = 0;
+ u64 prev_em_start = (u64)-1;
for (page_idx = 0; page_idx < nr_pages; page_idx++) {
page = list_entry(pages->prev, struct page, lru);
@@ -4223,12 +4226,12 @@ int extent_readpages(struct extent_io_tree *tree,
if (nr < ARRAY_SIZE(pagepool))
continue;
__extent_readpages(tree, pagepool, nr, get_extent, &em_cached,
- &bio, 0, &bio_flags, READ);
+ &bio, 0, &bio_flags, READ, &prev_em_start);
nr = 0;
}
if (nr)
__extent_readpages(tree, pagepool, nr, get_extent, &em_cached,
- &bio, 0, &bio_flags, READ);
+ &bio, 0, &bio_flags, READ, &prev_em_start);
if (em_cached)
free_extent_map(em_cached);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 0adf542..3e3e613 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -4639,6 +4639,11 @@ locked:
bctl->flags |= BTRFS_BALANCE_TYPE_MASK;
}
+ if (bctl->flags & ~(BTRFS_BALANCE_ARGS_MASK | BTRFS_BALANCE_TYPE_MASK)) {
+ ret = -EINVAL;
+ goto out_bargs;
+ }
+
do_balance:
/*
* Ownership of bctl and mutually_exclusive_operation_running
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index aa72bfd..a739b82 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -1920,10 +1920,12 @@ static int did_overwrite_ref(struct send_ctx *sctx,
/*
* We know that it is or will be overwritten. Check this now.
* The current inode being processed might have been the one that caused
- * inode 'ino' to be orphanized, therefore ow_inode can actually be the
- * same as sctx->send_progress.
+ * inode 'ino' to be orphanized, therefore check if ow_inode matches
+ * the current inode being processed.
*/
- if (ow_inode <= sctx->send_progress)
+ if ((ow_inode < sctx->send_progress) ||
+ (ino != sctx->cur_ino && ow_inode == sctx->cur_ino &&
+ gen == sctx->cur_inode_gen))
ret = 1;
else
ret = 0;
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 74bc333..a5b0644 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -557,6 +557,7 @@ again:
h->delayed_ref_elem.seq = 0;
h->type = type;
h->allocating_chunk = false;
+ h->can_flush_pending_bgs = true;
h->reloc_reserved = false;
h->sync = false;
INIT_LIST_HEAD(&h->qgroup_ref_list);
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index 87964bf..a994bb0 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -118,6 +118,7 @@ struct btrfs_trans_handle {
short aborted;
short adding_csums;
bool allocating_chunk;
+ bool can_flush_pending_bgs;
bool reloc_reserved;
bool sync;
unsigned int type;
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 2ca784a..595279a 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -376,6 +376,14 @@ struct map_lookup {
#define BTRFS_BALANCE_ARGS_VRANGE (1ULL << 4)
#define BTRFS_BALANCE_ARGS_LIMIT (1ULL << 5)
+#define BTRFS_BALANCE_ARGS_MASK \
+ (BTRFS_BALANCE_ARGS_PROFILES | \
+ BTRFS_BALANCE_ARGS_USAGE | \
+ BTRFS_BALANCE_ARGS_DEVID | \
+ BTRFS_BALANCE_ARGS_DRANGE | \
+ BTRFS_BALANCE_ARGS_VRANGE | \
+ BTRFS_BALANCE_ARGS_LIMIT)
+
/*
* Profile changing flags. When SOFT is set we won't relocate chunk if
* it already has the target profile (even though it may be
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 27aea11..c3cc160 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -136,5 +136,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
extern const struct export_operations cifs_export_ops;
#endif /* CONFIG_CIFS_NFSD_EXPORT */
-#define CIFS_VERSION "2.07"
+#define CIFS_VERSION "2.08"
#endif /* _CIFSFS_H */
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index e2a6af1..62203c3 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -3380,6 +3380,7 @@ readpages_get_pages(struct address_space *mapping, struct list_head *page_list,
struct page *page, *tpage;
unsigned int expected_index;
int rc;
+ gfp_t gfp = GFP_KERNEL & mapping_gfp_mask(mapping);
INIT_LIST_HEAD(tmplist);
@@ -3392,7 +3393,7 @@ readpages_get_pages(struct address_space *mapping, struct list_head *page_list,
*/
__set_page_locked(page);
rc = add_to_page_cache_locked(page, mapping,
- page->index, GFP_KERNEL);
+ page->index, gfp);
/* give up if we can't stick it in the cache */
if (rc) {
@@ -3418,8 +3419,7 @@ readpages_get_pages(struct address_space *mapping, struct list_head *page_list,
break;
__set_page_locked(page);
- if (add_to_page_cache_locked(page, mapping, page->index,
- GFP_KERNEL)) {
+ if (add_to_page_cache_locked(page, mapping, page->index, gfp)) {
__clear_page_locked(page);
break;
}
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index f621b44..6b66dd5 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -2034,7 +2034,6 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs,
struct tcon_link *tlink = NULL;
struct cifs_tcon *tcon = NULL;
struct TCP_Server_Info *server;
- struct cifs_io_parms io_parms;
/*
* To avoid spurious oplock breaks from server, in the case of
@@ -2056,18 +2055,6 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs,
rc = -ENOSYS;
cifsFileInfo_put(open_file);
cifs_dbg(FYI, "SetFSize for attrs rc = %d\n", rc);
- if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
- unsigned int bytes_written;
-
- io_parms.netfid = open_file->fid.netfid;
- io_parms.pid = open_file->pid;
- io_parms.tcon = tcon;
- io_parms.offset = 0;
- io_parms.length = attrs->ia_size;
- rc = CIFSSMBWrite(xid, &io_parms, &bytes_written,
- NULL, NULL, 1);
- cifs_dbg(FYI, "Wrt seteof rc %d\n", rc);
- }
} else
rc = -EINVAL;
@@ -2093,28 +2080,7 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs,
else
rc = -ENOSYS;
cifs_dbg(FYI, "SetEOF by path (setattrs) rc = %d\n", rc);
- if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
- __u16 netfid;
- int oplock = 0;
- rc = SMBLegacyOpen(xid, tcon, full_path, FILE_OPEN,
- GENERIC_WRITE, CREATE_NOT_DIR, &netfid,
- &oplock, NULL, cifs_sb->local_nls,
- cifs_remap(cifs_sb));
- if (rc == 0) {
- unsigned int bytes_written;
-
- io_parms.netfid = netfid;
- io_parms.pid = current->tgid;
- io_parms.tcon = tcon;
- io_parms.offset = 0;
- io_parms.length = attrs->ia_size;
- rc = CIFSSMBWrite(xid, &io_parms, &bytes_written, NULL,
- NULL, 1);
- cifs_dbg(FYI, "wrt seteof rc %d\n", rc);
- CIFSSMBClose(xid, tcon, netfid);
- }
- }
if (tlink)
cifs_put_tlink(tlink);
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index ce83e2e..597a417 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -922,7 +922,7 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
if (tcon && tcon->bad_network_name)
return -ENOENT;
- if ((tcon->seal) &&
+ if ((tcon && tcon->seal) &&
((ses->server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION) == 0)) {
cifs_dbg(VFS, "encryption requested but no server support");
return -EOPNOTSUPP;
diff --git a/fs/dax.c b/fs/dax.c
index bcfb14b..a86d3cc 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -285,6 +285,7 @@ static int copy_user_bh(struct page *to, struct buffer_head *bh,
static int dax_insert_mapping(struct inode *inode, struct buffer_head *bh,
struct vm_area_struct *vma, struct vm_fault *vmf)
{
+ struct address_space *mapping = inode->i_mapping;
sector_t sector = bh->b_blocknr << (inode->i_blkbits - 9);
unsigned long vaddr = (unsigned long)vmf->virtual_address;
void __pmem *addr;
@@ -292,6 +293,8 @@ static int dax_insert_mapping(struct inode *inode, struct buffer_head *bh,
pgoff_t size;
int error;
+ i_mmap_lock_read(mapping);
+
/*
* Check truncate didn't happen while we were allocating a block.
* If it did, this block may or may not be still allocated to the
@@ -321,6 +324,8 @@ static int dax_insert_mapping(struct inode *inode, struct buffer_head *bh,
error = vm_insert_mixed(vma, vaddr, pfn);
out:
+ i_mmap_unlock_read(mapping);
+
return error;
}
@@ -382,17 +387,15 @@ int __dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf,
* from a read fault and we've raced with a truncate
*/
error = -EIO;
- goto unlock;
+ goto unlock_page;
}
- } else {
- i_mmap_lock_write(mapping);
}
error = get_block(inode, block, &bh, 0);
if (!error && (bh.b_size < PAGE_SIZE))
error = -EIO; /* fs corruption? */
if (error)
- goto unlock;
+ goto unlock_page;
if (!buffer_mapped(&bh) && !buffer_unwritten(&bh) && !vmf->cow_page) {
if (vmf->flags & FAULT_FLAG_WRITE) {
@@ -403,9 +406,8 @@ int __dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf,
if (!error && (bh.b_size < PAGE_SIZE))
error = -EIO;
if (error)
- goto unlock;
+ goto unlock_page;
} else {
- i_mmap_unlock_write(mapping);
return dax_load_hole(mapping, page, vmf);
}
}
@@ -417,15 +419,17 @@ int __dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf,
else
clear_user_highpage(new_page, vaddr);
if (error)
- goto unlock;
+ goto unlock_page;
vmf->page = page;
if (!page) {
+ i_mmap_lock_read(mapping);
/* Check we didn't race with truncate */
size = (i_size_read(inode) + PAGE_SIZE - 1) >>
PAGE_SHIFT;
if (vmf->pgoff >= size) {
+ i_mmap_unlock_read(mapping);
error = -EIO;
- goto unlock;
+ goto out;
}
}
return VM_FAULT_LOCKED;
@@ -461,8 +465,6 @@ int __dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf,
WARN_ON_ONCE(!(vmf->flags & FAULT_FLAG_WRITE));
}
- if (!page)
- i_mmap_unlock_write(mapping);
out:
if (error == -ENOMEM)
return VM_FAULT_OOM | major;
@@ -471,14 +473,11 @@ int __dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf,
return VM_FAULT_SIGBUS | major;
return VM_FAULT_NOPAGE | major;
- unlock:
+ unlock_page:
if (page) {
unlock_page(page);
page_cache_release(page);
- } else {
- i_mmap_unlock_write(mapping);
}
-
goto out;
}
EXPORT_SYMBOL(__dax_fault);
@@ -556,10 +555,10 @@ int __dax_pmd_fault(struct vm_area_struct *vma, unsigned long address,
block = (sector_t)pgoff << (PAGE_SHIFT - blkbits);
bh.b_size = PMD_SIZE;
- i_mmap_lock_write(mapping);
length = get_block(inode, block, &bh, write);
if (length)
return VM_FAULT_SIGBUS;
+ i_mmap_lock_read(mapping);
/*
* If the filesystem isn't willing to tell us the length of a hole,
@@ -569,36 +568,14 @@ int __dax_pmd_fault(struct vm_area_struct *vma, unsigned long address,
if (!buffer_size_valid(&bh) || bh.b_size < PMD_SIZE)
goto fallback;
- sector = bh.b_blocknr << (blkbits - 9);
-
- if (buffer_unwritten(&bh) || buffer_new(&bh)) {
- int i;
-
- length = bdev_direct_access(bh.b_bdev, sector, &kaddr, &pfn,
- bh.b_size);
- if (length < 0) {
- result = VM_FAULT_SIGBUS;
- goto out;
- }
- if ((length < PMD_SIZE) || (pfn & PG_PMD_COLOUR))
- goto fallback;
-
- for (i = 0; i < PTRS_PER_PMD; i++)
- clear_pmem(kaddr + i * PAGE_SIZE, PAGE_SIZE);
- wmb_pmem();
- count_vm_event(PGMAJFAULT);
- mem_cgroup_count_vm_event(vma->vm_mm, PGMAJFAULT);
- result |= VM_FAULT_MAJOR;
- }
-
/*
* If we allocated new storage, make sure no process has any
* zero pages covering this hole
*/
if (buffer_new(&bh)) {
- i_mmap_unlock_write(mapping);
+ i_mmap_unlock_read(mapping);
unmap_mapping_range(mapping, pgoff << PAGE_SHIFT, PMD_SIZE, 0);
- i_mmap_lock_write(mapping);
+ i_mmap_lock_read(mapping);
}
/*
@@ -635,6 +612,7 @@ int __dax_pmd_fault(struct vm_area_struct *vma, unsigned long address,
result = VM_FAULT_NOPAGE;
spin_unlock(ptl);
} else {
+ sector = bh.b_blocknr << (blkbits - 9);
length = bdev_direct_access(bh.b_bdev, sector, &kaddr, &pfn,
bh.b_size);
if (length < 0) {
@@ -644,15 +622,25 @@ int __dax_pmd_fault(struct vm_area_struct *vma, unsigned long address,
if ((length < PMD_SIZE) || (pfn & PG_PMD_COLOUR))
goto fallback;
+ if (buffer_unwritten(&bh) || buffer_new(&bh)) {
+ int i;
+ for (i = 0; i < PTRS_PER_PMD; i++)
+ clear_pmem(kaddr + i * PAGE_SIZE, PAGE_SIZE);
+ wmb_pmem();
+ count_vm_event(PGMAJFAULT);
+ mem_cgroup_count_vm_event(vma->vm_mm, PGMAJFAULT);
+ result |= VM_FAULT_MAJOR;
+ }
+
result |= vmf_insert_pfn_pmd(vma, address, pmd, pfn, write);
}
out:
+ i_mmap_unlock_read(mapping);
+
if (buffer_unwritten(&bh))
complete_unwritten(&bh, !(result & VM_FAULT_ERROR));
- i_mmap_unlock_write(mapping);
-
return result;
fallback:
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index 47728da..b46e9fc 100644
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -63,7 +63,7 @@ config EXT4_FS
If unsure, say N.
config EXT4_USE_FOR_EXT2
- bool "Use ext4 for ext2/ext3 file systems"
+ bool "Use ext4 for ext2 file systems"
depends on EXT4_FS
depends on EXT2_FS=n
default y
diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c
index e26803f..560af04 100644
--- a/fs/ext4/readpage.c
+++ b/fs/ext4/readpage.c
@@ -165,8 +165,8 @@ int ext4_mpage_readpages(struct address_space *mapping,
if (pages) {
page = list_entry(pages->prev, struct page, lru);
list_del(&page->lru);
- if (add_to_page_cache_lru(page, mapping,
- page->index, GFP_KERNEL))
+ if (add_to_page_cache_lru(page, mapping, page->index,
+ GFP_KERNEL & mapping_gfp_mask(mapping)))
goto next_page;
}
diff --git a/fs/mpage.c b/fs/mpage.c
index 778a4dd..a7c3427 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -139,7 +139,8 @@ map_buffer_to_page(struct page *page, struct buffer_head *bh, int page_block)
static struct bio *
do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
sector_t *last_block_in_bio, struct buffer_head *map_bh,
- unsigned long *first_logical_block, get_block_t get_block)
+ unsigned long *first_logical_block, get_block_t get_block,
+ gfp_t gfp)
{
struct inode *inode = page->mapping->host;
const unsigned blkbits = inode->i_blkbits;
@@ -277,8 +278,7 @@ alloc_new:
goto out;
}
bio = mpage_alloc(bdev, blocks[0] << (blkbits - 9),
- min_t(int, nr_pages, BIO_MAX_PAGES),
- GFP_KERNEL);
+ min_t(int, nr_pages, BIO_MAX_PAGES), gfp);
if (bio == NULL)
goto confused;
}
@@ -361,6 +361,7 @@ mpage_readpages(struct address_space *mapping, struct list_head *pages,
sector_t last_block_in_bio = 0;
struct buffer_head map_bh;
unsigned long first_logical_block = 0;
+ gfp_t gfp = GFP_KERNEL & mapping_gfp_mask(mapping);
map_bh.b_state = 0;
map_bh.b_size = 0;
@@ -370,12 +371,13 @@ mpage_readpages(struct address_space *mapping, struct list_head *pages,
prefetchw(&page->flags);
list_del(&page->lru);
if (!add_to_page_cache_lru(page, mapping,
- page->index, GFP_KERNEL)) {
+ page->index,
+ gfp)) {
bio = do_mpage_readpage(bio, page,
nr_pages - page_idx,
&last_block_in_bio, &map_bh,
&first_logical_block,
- get_block);
+ get_block, gfp);
}
page_cache_release(page);
}
@@ -395,11 +397,12 @@ int mpage_readpage(struct page *page, get_block_t get_block)
sector_t last_block_in_bio = 0;
struct buffer_head map_bh;
unsigned long first_logical_block = 0;
+ gfp_t gfp = GFP_KERNEL & mapping_gfp_mask(page->mapping);
map_bh.b_state = 0;
map_bh.b_size = 0;
bio = do_mpage_readpage(bio, page, 1, &last_block_in_bio,
- &map_bh, &first_logical_block, get_block);
+ &map_bh, &first_logical_block, get_block, gfp);
if (bio)
mpage_bio_submit(READ, bio);
return 0;
diff --git a/fs/namei.c b/fs/namei.c
index 726d211..33e9495 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1558,8 +1558,6 @@ static int lookup_fast(struct nameidata *nd,
negative = d_is_negative(dentry);
if (read_seqcount_retry(&dentry->d_seq, seq))
return -ECHILD;
- if (negative)
- return -ENOENT;
/*
* This sequence count validates that the parent had no
@@ -1580,6 +1578,12 @@ static int lookup_fast(struct nameidata *nd,
goto unlazy;
}
}
+ /*
+ * Note: do negative dentry check after revalidation in
+ * case that drops it.
+ */
+ if (negative)
+ return -ENOENT;
path->mnt = mnt;
path->dentry = dentry;
if (likely(__follow_mount_rcu(nd, path, inode, seqp)))
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index f93b9cd..5133bb1 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1458,12 +1458,18 @@ nfs4_opendata_check_deleg(struct nfs4_opendata *data, struct nfs4_state *state)
if (delegation)
delegation_flags = delegation->flags;
rcu_read_unlock();
- if (data->o_arg.claim == NFS4_OPEN_CLAIM_DELEGATE_CUR) {
+ switch (data->o_arg.claim) {
+ default:
+ break;
+ case NFS4_OPEN_CLAIM_DELEGATE_CUR:
+ case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
pr_err_ratelimited("NFS: Broken NFSv4 server %s is "
"returning a delegation for "
"OPEN(CLAIM_DELEGATE_CUR)\n",
clp->cl_hostname);
- } else if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
+ return;
+ }
+ if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
nfs_inode_set_delegation(state->inode,
data->owner->so_cred,
&data->o_res);
@@ -1771,6 +1777,9 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx,
if (IS_ERR(opendata))
return PTR_ERR(opendata);
nfs4_stateid_copy(&opendata->o_arg.u.delegation, stateid);
+ write_seqlock(&state->seqlock);
+ nfs4_stateid_copy(&state->stateid, &state->open_stateid);
+ write_sequnlock(&state->seqlock);
clear_bit(NFS_DELEGATED_STATE, &state->flags);
switch (type & (FMODE_READ|FMODE_WRITE)) {
case FMODE_READ|FMODE_WRITE:
@@ -1863,6 +1872,8 @@ static int _nfs4_proc_open_confirm(struct nfs4_opendata *data)
data->rpc_done = 0;
data->rpc_status = 0;
data->timestamp = jiffies;
+ if (data->is_recover)
+ nfs4_set_sequence_privileged(&data->c_arg.seq_args);
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 5db3246..d854693 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1725,7 +1725,8 @@ restart:
if (!test_and_clear_bit(ops->owner_flag_bit,
&sp->so_flags))
continue;
- atomic_inc(&sp->so_count);
+ if (!atomic_inc_not_zero(&sp->so_count))
+ continue;
spin_unlock(&clp->cl_lock);
rcu_read_unlock();
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index 28df12e..671cf68 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -409,7 +409,7 @@ DECLARE_EVENT_CLASS(nfs4_open_event,
__entry->flags = flags;
__entry->fmode = (__force unsigned int)ctx->mode;
__entry->dev = ctx->dentry->d_sb->s_dev;
- if (!IS_ERR(state))
+ if (!IS_ERR_OR_NULL(state))
inode = state->inode;
if (inode != NULL) {
__entry->fileid = NFS_FILEID(inode);
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 72624dc..75ab762 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -569,19 +569,17 @@ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
if (!nfs_pageio_add_request(pgio, req)) {
nfs_redirty_request(req);
ret = pgio->pg_error;
- }
+ } else
+ nfs_add_stats(page_file_mapping(page)->host,
+ NFSIOS_WRITEPAGES, 1);
out:
return ret;
}
static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, struct nfs_pageio_descriptor *pgio)
{
- struct inode *inode = page_file_mapping(page)->host;
int ret;
- nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGE);
- nfs_add_stats(inode, NFSIOS_WRITEPAGES, 1);
-
nfs_pageio_cond_complete(pgio, page_file_index(page));
ret = nfs_page_async_flush(pgio, page, wbc->sync_mode == WB_SYNC_NONE);
if (ret == -EAGAIN) {
@@ -597,9 +595,11 @@ static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, st
static int nfs_writepage_locked(struct page *page, struct writeback_control *wbc)
{
struct nfs_pageio_descriptor pgio;
+ struct inode *inode = page_file_mapping(page)->host;
int err;
- nfs_pageio_init_write(&pgio, page->mapping->host, wb_priority(wbc),
+ nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGE);
+ nfs_pageio_init_write(&pgio, inode, wb_priority(wbc),
false, &nfs_async_write_completion_ops);
err = nfs_do_writepage(page, wbc, &pgio);
nfs_pageio_complete(&pgio);
@@ -1223,7 +1223,7 @@ static int nfs_can_extend_write(struct file *file, struct page *page, struct ino
return 1;
if (!flctx || (list_empty_careful(&flctx->flc_flock) &&
list_empty_careful(&flctx->flc_posix)))
- return 0;
+ return 1;
/* Check to see if there are whole file write locks */
ret = 0;
diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c
index cdefaa3..c29d942 100644
--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -56,14 +56,6 @@ nfsd4_block_proc_layoutget(struct inode *inode, const struct svc_fh *fhp,
u32 device_generation = 0;
int error;
- /*
- * We do not attempt to support I/O smaller than the fs block size,
- * or not aligned to it.
- */
- if (args->lg_minlength < block_size) {
- dprintk("pnfsd: I/O too small\n");
- goto out_layoutunavailable;
- }
if (seg->offset & (block_size - 1)) {
dprintk("pnfsd: I/O misaligned\n");
goto out_layoutunavailable;
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index ba1323a..a586467 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -70,6 +70,7 @@ int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize)
unsigned order;
void *data;
int ret;
+ gfp_t gfp = mapping_gfp_mask(inode->i_mapping);
/* make various checks */
order = get_order(newsize);
@@ -84,7 +85,7 @@ int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize)
/* allocate enough contiguous pages to be able to satisfy the
* request */
- pages = alloc_pages(mapping_gfp_mask(inode->i_mapping), order);
+ pages = alloc_pages(gfp, order);
if (!pages)
return -ENOMEM;
@@ -108,7 +109,7 @@ int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize)
struct page *page = pages + loop;
ret = add_to_page_cache_lru(page, inode->i_mapping, loop,
- GFP_KERNEL);
+ gfp);
if (ret < 0)
goto add_error;
generated by cgit v0.10.2 at 2024-07-31 06:51:41 (GMT)