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| author | Chris Mason <chris.mason@oracle.com> | 2007-10-25 15:42:56 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:03:57 -0400 |
| commit | f578d4bd7e141dd03ca7e8695c1cc118c326e69e (patch) | |
| tree | bb89f7548f3c537ed34ddf9d0ac71f3a6fefff85 /fs/btrfs/ctree.h | |
| parent | 5ee78ac70f6c01f2a5acf662c2af975665710edc (diff) | |
| download | lwn-f578d4bd7e141dd03ca7e8695c1cc118c326e69e.tar.gz lwn-f578d4bd7e141dd03ca7e8695c1cc118c326e69e.zip | |
Btrfs: Optimize csum insertion to create larger items when possible
This reduces the number of calls to btrfs_extend_item and greatly lowers
the cpu usage while writing large files.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 1d2b54150075..70e143b13577 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -991,6 +991,7 @@ int btrfs_lookup_file_extent(struct btrfs_trans_handle *trans, u64 bytenr, int mod); int btrfs_csum_file_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, + struct inode *inode, u64 objectid, u64 offset, char *data, size_t len); struct btrfs_csum_item *btrfs_lookup_csum(struct btrfs_trans_handle *trans, |