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| author | Dave Chinner <dchinner@redhat.com> | 2012-11-14 17:54:40 +1100 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2012-11-15 21:35:12 -0600 |
| commit | 1813dd64057490e7a0678a885c4fe6d02f78bdc1 (patch) | |
| tree | caf95e2be7881b771da65561b2f1664d73588401 /fs/xfs/xfs_btree.h | |
| parent | b0f539de9fcc543a3ffa40bc22bf51aca6ea6183 (diff) | |
| download | linux-1813dd64057490e7a0678a885c4fe6d02f78bdc1.tar.bz2 | |
xfs: convert buffer verifiers to an ops structure.
To separate the verifiers from iodone functions and associate read
and write verifiers at the same time, introduce a buffer verifier
operations structure to the xfs_buf.
This avoids the need for assigning the write verifier, clearing the
iodone function and re-running ioend processing in the read
verifier, and gets rid of the nasty "b_pre_io" name for the write
verifier function pointer. If we ever need to, it will also be
easier to add further content specific callbacks to a buffer with an
ops structure in place.
We also avoid needing to export verifier functions, instead we
can simply export the ops structures for those that are needed
outside the function they are defined in.
This patch also fixes a directory block readahead verifier issue
it exposed.
This patch also adds ops callbacks to the inode/alloc btree blocks
initialised by growfs. These will need more work before they will
work with CRCs.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Phil White <pwhite@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_btree.h')
| -rw-r--r-- | fs/xfs/xfs_btree.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h index 458ab3550898..f932897194eb 100644 --- a/fs/xfs/xfs_btree.h +++ b/fs/xfs/xfs_btree.h @@ -188,8 +188,7 @@ struct xfs_btree_ops { __int64_t (*key_diff)(struct xfs_btree_cur *cur, union xfs_btree_key *key); - void (*read_verify)(struct xfs_buf *bp); - void (*write_verify)(struct xfs_buf *bp); + const struct xfs_buf_ops *buf_ops; #ifdef DEBUG /* check that k1 is lower than k2 */ @@ -359,7 +358,7 @@ xfs_btree_read_bufl( uint lock, /* lock flags for read_buf */ struct xfs_buf **bpp, /* buffer for fsbno */ int refval, /* ref count value for buffer */ - xfs_buf_iodone_t verify); + const struct xfs_buf_ops *ops); /* * Read-ahead the block, don't wait for it, don't return a buffer. @@ -370,7 +369,7 @@ xfs_btree_reada_bufl( struct xfs_mount *mp, /* file system mount point */ xfs_fsblock_t fsbno, /* file system block number */ xfs_extlen_t count, /* count of filesystem blocks */ - xfs_buf_iodone_t verify); + const struct xfs_buf_ops *ops); /* * Read-ahead the block, don't wait for it, don't return a buffer. @@ -382,7 +381,7 @@ xfs_btree_reada_bufs( xfs_agnumber_t agno, /* allocation group number */ xfs_agblock_t agbno, /* allocation group block number */ xfs_extlen_t count, /* count of filesystem blocks */ - xfs_buf_iodone_t verify); + const struct xfs_buf_ops *ops); /* * Initialise a new btree block header |