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| author | Arne Jansen <sensille@gmx.net> | 2011-05-23 14:25:41 +0200 |
|---|---|---|
| committer | Arne Jansen <sensille@gmx.net> | 2011-10-02 08:47:57 +0200 |
| commit | ab0fff03055d2d1b01a7581badeba18db9c4f55c (patch) | |
| tree | 3bc6fbbdc7188623783db379eff8fbf23cdcb514 /fs/btrfs/disk-io.h | |
| parent | bb82ab88dfdb12948af58989c75bfe904bc1b09d (diff) | |
| download | blackbird-op-linux-ab0fff03055d2d1b01a7581badeba18db9c4f55c.tar.gz blackbird-op-linux-ab0fff03055d2d1b01a7581badeba18db9c4f55c.zip | |
btrfs: add READAHEAD extent buffer flag
Add a READAHEAD extent buffer flag.
Add a function to trigger a read with this flag set.
Changes v2:
- use extent buffer flags instead of extent state flags
Changes v5:
- adapt to changed read_extent_buffer_pages interface
- don't return eb from reada_tree_block_flagged if it has CORRUPT flag set
Signed-off-by: Arne Jansen <sensille@gmx.net>
Diffstat (limited to 'fs/btrfs/disk-io.h')
| -rw-r--r-- | fs/btrfs/disk-io.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index bec3ea4bd67f..b3bdb5c1390f 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -40,6 +40,8 @@ struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize, u64 parent_transid); int readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize, u64 parent_transid); +int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr, u32 blocksize, + int mirror_num, struct extent_buffer **eb); struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize); int clean_tree_block(struct btrfs_trans_handle *trans, |
