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| author | Chris Mason <chris.mason@oracle.com> | 2008-02-19 20:55:05 +0300 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 19:04:00 +0400 |
| commit | d99cb30a11ea117ad0f58cda09aa43438ebbf81c (patch) | |
| tree | 92e6faa3509b1cc4eab21e31ae132d04478d286d /fs/btrfs/file.c | |
| parent | 5e591a0703bc03047d37938586f97fd8ca960c08 (diff) | |
| download | linux-d99cb30a11ea117ad0f58cda09aa43438ebbf81c.tar.xz | |
Btrfs: Take the extent lock before dropping the delalloc bits
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/file.c')
| -rw-r--r-- | fs/btrfs/file.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 1a47251a9d4d..51466dcd44e0 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -765,9 +765,13 @@ static int prepare_pages(struct btrfs_root *root, struct file *file, if (start_pos < inode->i_size) { u64 last_pos; last_pos = (index + num_pages) << PAGE_CACHE_SHIFT; + lock_extent(&BTRFS_I(inode)->io_tree, + start_pos, last_pos - 1, GFP_NOFS); clear_extent_bits(&BTRFS_I(inode)->io_tree, start_pos, last_pos - 1, EXTENT_DIRTY | EXTENT_DELALLOC, GFP_NOFS); + unlock_extent(&BTRFS_I(inode)->io_tree, + start_pos, last_pos - 1, GFP_NOFS); } return 0; } |