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| author | Chris Mason <chris.mason@oracle.com> | 2007-05-01 08:53:32 -0400 |
|---|---|---|
| committer | David Woodhouse <dwmw2@hera.kernel.org> | 2007-05-01 08:53:32 -0400 |
| commit | 090d18753c7fb73f7d846c3a89a50cd35136d144 (patch) | |
| tree | e36965065fd68633c06cbe4b8312e5afe49997f4 /fs/btrfs/disk-io.h | |
| parent | 31f3c99b73483f7b738a886c552050cbd6128ff3 (diff) | |
| download | linux-090d18753c7fb73f7d846c3a89a50cd35136d144.tar.gz linux-090d18753c7fb73f7d846c3a89a50cd35136d144.tar.bz2 linux-090d18753c7fb73f7d846c3a89a50cd35136d144.zip | |
Btrfs: directory readahead
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/disk-io.h')
| -rw-r--r-- | fs/btrfs/disk-io.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index 444ebb0141ae..1ee7d2a55b5b 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -5,6 +5,11 @@ #define BTRFS_SUPER_INFO_OFFSET (16 * 1024) +enum btrfs_bh_state_bits { + BH_Checked = BH_PrivateStart, +}; +BUFFER_FNS(Checked, checked); + static inline struct btrfs_node *btrfs_buffer_node(struct buffer_head *bh) { return (struct btrfs_node *)bh->b_data; @@ -21,6 +26,7 @@ static inline struct btrfs_header *btrfs_buffer_header(struct buffer_head *bh) } struct buffer_head *read_tree_block(struct btrfs_root *root, u64 blocknr); +int readahead_tree_block(struct btrfs_root *root, u64 blocknr); struct buffer_head *btrfs_find_create_tree_block(struct btrfs_root *root, u64 blocknr); int write_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, |