diff options
| author | Miao Xie <miaox@cn.fujitsu.com> | 2014-09-12 14:43:54 +0400 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-09-18 00:38:50 +0400 |
| commit | 23ea8e5a07673127d05cb5cf6f9914d7a53e0847 (patch) | |
| tree | 58199f4b68c72a1a6c4d0be4cf6ab917ecdcb070 /fs/btrfs/ctree.h | |
| parent | c3929c3624e1764855e5a452728aec201b18b42a (diff) | |
| download | linux-23ea8e5a07673127d05cb5cf6f9914d7a53e0847.tar.xz | |
Btrfs: load checksum data once when submitting a direct read io
The current code would load checksum data for several times when we split
a whole direct read io because of the limit of the raid stripe, it would
make us search the csum tree for several times. In fact, it just wasted time,
and made the contention of the csum tree root be more serious. This patch
improves this problem by loading the data at once.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 6db3d4bac6fd..0f3e4f7e454a 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3719,8 +3719,7 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans, int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode, struct bio *bio, u32 *dst); int btrfs_lookup_bio_sums_dio(struct btrfs_root *root, struct inode *inode, - struct btrfs_dio_private *dip, struct bio *bio, - u64 logical_offset); + struct bio *bio, u64 logical_offset); int btrfs_insert_file_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 objectid, u64 pos, |