diff options
author | Li Zefan <lizf@cn.fujitsu.com> | 2011-07-19 23:46:35 -0400 |
---|---|---|
committer | Chris Mason <chris.mason@oracle.com> | 2011-08-01 14:30:42 -0400 |
commit | b6973aa62253f3791ef6fa5e9f9de099645fc2bd (patch) | |
tree | eb4fe689723dc89e803a139d0d873dc4c9cd205d /fs/btrfs/inode.c | |
parent | b532402e4d147e4f409c4e7f50d4413e8450101d (diff) |
Btrfs: fix readahead in file defrag
We passed the wrong value to btrfs_force_ra(). Fix this by changing
the argument of btrfs_force_ra() from last_index to nr_page.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r-- | fs/btrfs/inode.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 5da43aea205f..69e448eddf09 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c | |||
@@ -6697,19 +6697,6 @@ int btrfs_create_subvol_root(struct btrfs_trans_handle *trans, | |||
6697 | return 0; | 6697 | return 0; |
6698 | } | 6698 | } |
6699 | 6699 | ||
6700 | /* helper function for file defrag and space balancing. This | ||
6701 | * forces readahead on a given range of bytes in an inode | ||
6702 | */ | ||
6703 | unsigned long btrfs_force_ra(struct address_space *mapping, | ||
6704 | struct file_ra_state *ra, struct file *file, | ||
6705 | pgoff_t offset, pgoff_t last_index) | ||
6706 | { | ||
6707 | pgoff_t req_size = last_index - offset + 1; | ||
6708 | |||
6709 | page_cache_sync_readahead(mapping, ra, file, offset, req_size); | ||
6710 | return offset + req_size; | ||
6711 | } | ||
6712 | |||
6713 | struct inode *btrfs_alloc_inode(struct super_block *sb) | 6700 | struct inode *btrfs_alloc_inode(struct super_block *sb) |
6714 | { | 6701 | { |
6715 | struct btrfs_inode *ei; | 6702 | struct btrfs_inode *ei; |