From 1d9025e56143c0c4aebebdb62e46618d3d284218 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Fri, 22 Jun 2012 18:50:14 +1000 Subject: xfs: remove struct xfs_dabuf and infrastructure The struct xfs_dabuf now only tracks a single xfs_buf and all the information it holds can be gained directly from the xfs_buf. Hence we can remove the struct dabuf and pass the xfs_buf around everywhere. Kill the struct dabuf and the associated infrastructure. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Ben Myers --- fs/xfs/xfs_dir2_priv.h | 46 +++++++++++++++++++++++----------------------- 1 file changed, 23 insertions(+), 23 deletions(-) (limited to 'fs/xfs/xfs_dir2_priv.h') diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h index 067f403ecf8..3523d3e15aa 100644 --- a/fs/xfs/xfs_dir2_priv.h +++ b/fs/xfs/xfs_dir2_priv.h @@ -25,7 +25,7 @@ extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *r); extern int xfs_dir2_grow_inode(struct xfs_da_args *args, int space, xfs_dir2_db_t *dbp); extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db, - struct xfs_dabuf *bp); + struct xfs_buf *bp); extern int xfs_dir_cilookup_result(struct xfs_da_args *args, const unsigned char *name, int len); @@ -37,11 +37,11 @@ extern int xfs_dir2_block_lookup(struct xfs_da_args *args); extern int xfs_dir2_block_removename(struct xfs_da_args *args); extern int xfs_dir2_block_replace(struct xfs_da_args *args); extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args, - struct xfs_dabuf *lbp, struct xfs_dabuf *dbp); + struct xfs_buf *lbp, struct xfs_buf *dbp); /* xfs_dir2_data.c */ #ifdef DEBUG -extern void xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_dabuf *bp); +extern void xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_buf *bp); #else #define xfs_dir2_data_check(dp,bp) #endif @@ -51,43 +51,43 @@ xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr, extern void xfs_dir2_data_freescan(struct xfs_mount *mp, struct xfs_dir2_data_hdr *hdr, int *loghead); extern int xfs_dir2_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno, - struct xfs_dabuf **bpp); -extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_dabuf *bp, + struct xfs_buf **bpp); +extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_buf *bp, struct xfs_dir2_data_entry *dep); extern void xfs_dir2_data_log_header(struct xfs_trans *tp, - struct xfs_dabuf *bp); -extern void xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_dabuf *bp, + struct xfs_buf *bp); +extern void xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_buf *bp, struct xfs_dir2_data_unused *dup); -extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_dabuf *bp, +extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_buf *bp, xfs_dir2_data_aoff_t offset, xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp); -extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_dabuf *bp, +extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp, struct xfs_dir2_data_unused *dup, xfs_dir2_data_aoff_t offset, xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp); /* xfs_dir2_leaf.c */ extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args, - struct xfs_dabuf *dbp); + struct xfs_buf *dbp); extern int xfs_dir2_leaf_addname(struct xfs_da_args *args); extern void xfs_dir2_leaf_compact(struct xfs_da_args *args, - struct xfs_dabuf *bp); -extern void xfs_dir2_leaf_compact_x1(struct xfs_dabuf *bp, int *indexp, + struct xfs_buf *bp); +extern void xfs_dir2_leaf_compact_x1(struct xfs_buf *bp, int *indexp, int *lowstalep, int *highstalep, int *lowlogp, int *highlogp); extern int xfs_dir2_leaf_getdents(struct xfs_inode *dp, void *dirent, size_t bufsize, xfs_off_t *offset, filldir_t filldir); extern int xfs_dir2_leaf_init(struct xfs_da_args *args, xfs_dir2_db_t bno, - struct xfs_dabuf **bpp, int magic); -extern void xfs_dir2_leaf_log_ents(struct xfs_trans *tp, struct xfs_dabuf *bp, + struct xfs_buf **bpp, int magic); +extern void xfs_dir2_leaf_log_ents(struct xfs_trans *tp, struct xfs_buf *bp, int first, int last); extern void xfs_dir2_leaf_log_header(struct xfs_trans *tp, - struct xfs_dabuf *bp); + struct xfs_buf *bp); extern int xfs_dir2_leaf_lookup(struct xfs_da_args *args); extern int xfs_dir2_leaf_removename(struct xfs_da_args *args); extern int xfs_dir2_leaf_replace(struct xfs_da_args *args); extern int xfs_dir2_leaf_search_hash(struct xfs_da_args *args, - struct xfs_dabuf *lbp); + struct xfs_buf *lbp); extern int xfs_dir2_leaf_trim_data(struct xfs_da_args *args, - struct xfs_dabuf *lbp, xfs_dir2_db_t db); + struct xfs_buf *lbp, xfs_dir2_db_t db); extern struct xfs_dir2_leaf_entry * xfs_dir2_leaf_find_entry(struct xfs_dir2_leaf *leaf, int index, int compact, int lowstale, int highstale, @@ -96,13 +96,13 @@ extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state); /* xfs_dir2_node.c */ extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args, - struct xfs_dabuf *lbp); -extern xfs_dahash_t xfs_dir2_leafn_lasthash(struct xfs_dabuf *bp, int *count); -extern int xfs_dir2_leafn_lookup_int(struct xfs_dabuf *bp, + struct xfs_buf *lbp); +extern xfs_dahash_t xfs_dir2_leafn_lasthash(struct xfs_buf *bp, int *count); +extern int xfs_dir2_leafn_lookup_int(struct xfs_buf *bp, struct xfs_da_args *args, int *indexp, struct xfs_da_state *state); -extern int xfs_dir2_leafn_order(struct xfs_dabuf *leaf1_bp, - struct xfs_dabuf *leaf2_bp); +extern int xfs_dir2_leafn_order(struct xfs_buf *leaf1_bp, + struct xfs_buf *leaf2_bp); extern int xfs_dir2_leafn_split(struct xfs_da_state *state, struct xfs_da_state_blk *oldblk, struct xfs_da_state_blk *newblk); extern int xfs_dir2_leafn_toosmall(struct xfs_da_state *state, int *action); @@ -122,7 +122,7 @@ extern xfs_ino_t xfs_dir2_sfe_get_ino(struct xfs_dir2_sf_hdr *sfp, struct xfs_dir2_sf_entry *sfep); extern int xfs_dir2_block_sfsize(struct xfs_inode *dp, struct xfs_dir2_data_hdr *block, struct xfs_dir2_sf_hdr *sfhp); -extern int xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_dabuf *bp, +extern int xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_buf *bp, int size, xfs_dir2_sf_hdr_t *sfhp); extern int xfs_dir2_sf_addname(struct xfs_da_args *args); extern int xfs_dir2_sf_create(struct xfs_da_args *args, xfs_ino_t pino); -- cgit v1.2.3 From 82025d7f79148fe66a1594a0ebe4ab38152cf9e6 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 12 Nov 2012 22:54:12 +1100 Subject: xfs: verify dir2 block format buffers Add a dir2 block format read verifier. To fully verify every block when read, call xfs_dir2_data_check() on them. Change xfs_dir2_data_check() to do runtime checking, convert ASSERT() checks to XFS_WANT_CORRUPTED_RETURN(), which will trigger an ASSERT failure on debug kernels, but on production kernels will dump an error to dmesg and return EFSCORRUPTED to the caller. Signed-off-by: Dave Chinner Reviewed-by: Phil White Signed-off-by: Ben Myers --- fs/xfs/xfs_dir2_priv.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'fs/xfs/xfs_dir2_priv.h') diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h index 3523d3e15aa..93b8f66ae78 100644 --- a/fs/xfs/xfs_dir2_priv.h +++ b/fs/xfs/xfs_dir2_priv.h @@ -41,10 +41,12 @@ extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args, /* xfs_dir2_data.c */ #ifdef DEBUG -extern void xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_buf *bp); +#define xfs_dir2_data_check(dp,bp) __xfs_dir2_data_check(dp, bp); #else #define xfs_dir2_data_check(dp,bp) #endif +extern int __xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_buf *bp); + extern struct xfs_dir2_data_free * xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr, struct xfs_dir2_data_unused *dup, int *loghead); -- cgit v1.2.3 From 2025207ca6738a1217126ef14af9d104433f9824 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 12 Nov 2012 22:54:13 +1100 Subject: xfs: factor dir2 free block reading Also factor out the updating of the free block when removing entries from leaf blocks, and add a verifier callback for reads. Signed-off-by: Dave Chinner Reviewed-by: Phil White Signed-off-by: Ben Myers --- fs/xfs/xfs_dir2_priv.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/xfs/xfs_dir2_priv.h') diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h index 93b8f66ae78..263a6328791 100644 --- a/fs/xfs/xfs_dir2_priv.h +++ b/fs/xfs/xfs_dir2_priv.h @@ -117,6 +117,8 @@ extern int xfs_dir2_node_removename(struct xfs_da_args *args); extern int xfs_dir2_node_replace(struct xfs_da_args *args); extern int xfs_dir2_node_trim_free(struct xfs_da_args *args, xfs_fileoff_t fo, int *rvalp); +extern int xfs_dir2_free_read(struct xfs_trans *tp, struct xfs_inode *dp, + xfs_dablk_t fbno, struct xfs_buf **bpp); /* xfs_dir2_sf.c */ extern xfs_ino_t xfs_dir2_sf_get_parent_ino(struct xfs_dir2_sf_hdr *sfp); -- cgit v1.2.3 From e4813572640e27d3a5cce3f06751a9f54f77aaa5 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 12 Nov 2012 22:54:14 +1100 Subject: xfs: factor out dir2 data block reading And add a verifier callback function while there. Signed-off-by: Dave Chinner Reviewed-by: Phil White Signed-off-by: Ben Myers --- fs/xfs/xfs_dir2_priv.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/xfs/xfs_dir2_priv.h') diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h index 263a6328791..71ec8283910 100644 --- a/fs/xfs/xfs_dir2_priv.h +++ b/fs/xfs/xfs_dir2_priv.h @@ -46,6 +46,8 @@ extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args, #define xfs_dir2_data_check(dp,bp) #endif extern int __xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_buf *bp); +extern int xfs_dir2_data_read(struct xfs_trans *tp, struct xfs_inode *dp, + xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp); extern struct xfs_dir2_data_free * xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr, -- cgit v1.2.3 From e6f7667c4eef42b6f5bc6cdeb31d0bab62fe5f79 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 12 Nov 2012 22:54:15 +1100 Subject: xfs: factor dir2 leaf read Signed-off-by: Dave Chinner Reviewed-by: Phil White Signed-off-by: Ben Myers --- fs/xfs/xfs_dir2_priv.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/xfs/xfs_dir2_priv.h') diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h index 71ec8283910..4560825d099 100644 --- a/fs/xfs/xfs_dir2_priv.h +++ b/fs/xfs/xfs_dir2_priv.h @@ -70,6 +70,8 @@ extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp, xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp); /* xfs_dir2_leaf.c */ +extern int xfs_dir2_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp, + xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp); extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args, struct xfs_buf *dbp); extern int xfs_dir2_leaf_addname(struct xfs_da_args *args); -- cgit v1.2.3 From d9392a4bb75503fc2adbb5237c3df940c6467eb2 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 12 Nov 2012 22:54:17 +1100 Subject: xfs: add xfs_da_node verification Signed-off-by: Dave Chinner Reviewed-by: Phil White Signed-off-by: Ben Myers --- fs/xfs/xfs_dir2_priv.h | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/xfs/xfs_dir2_priv.h') diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h index 4560825d099..e0b96e7693e 100644 --- a/fs/xfs/xfs_dir2_priv.h +++ b/fs/xfs/xfs_dir2_priv.h @@ -70,6 +70,7 @@ extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp, xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp); /* xfs_dir2_leaf.c */ +extern void xfs_dir2_leafn_verify(struct xfs_buf *bp); extern int xfs_dir2_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp); extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args, -- cgit v1.2.3 From da6958c873ecd846d71fafbfe0f6168bb9c2c99e Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 12 Nov 2012 22:54:18 +1100 Subject: xfs: Add verifiers to dir2 data readahead. Signed-off-by: Dave Chinner Reviewed-by: Phil White Signed-off-by: Ben Myers --- fs/xfs/xfs_dir2_priv.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/xfs/xfs_dir2_priv.h') diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h index e0b96e7693e..daf5d0fc616 100644 --- a/fs/xfs/xfs_dir2_priv.h +++ b/fs/xfs/xfs_dir2_priv.h @@ -48,6 +48,8 @@ extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args, extern int __xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_buf *bp); extern int xfs_dir2_data_read(struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp); +extern int xfs_dir2_data_readahead(struct xfs_trans *tp, struct xfs_inode *dp, + xfs_dablk_t bno, xfs_daddr_t mapped_bno); extern struct xfs_dir2_data_free * xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr, -- cgit v1.2.3 From 612cfbfe174a89d565363fff7f3961a2dda5fb71 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Wed, 14 Nov 2012 17:52:32 +1100 Subject: xfs: add pre-write metadata buffer verifier callbacks These verifiers are essentially the same code as the read verifiers, but do not require ioend processing. Hence factor the read verifier functions and add a new write verifier wrapper that is used as the callback. This is done as one large patch for all verifiers rather than one patch per verifier as the change is largely mechanical. This includes hooking up the write verifier via the read verifier function. Hooking up the write verifier for buffers obtained via xfs_trans_get_buf() will be done in a separate patch as that touches code in many different places rather than just the verifier functions. Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers --- fs/xfs/xfs_dir2_priv.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/xfs/xfs_dir2_priv.h') diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h index daf5d0fc616..7ec61af8449 100644 --- a/fs/xfs/xfs_dir2_priv.h +++ b/fs/xfs/xfs_dir2_priv.h @@ -72,7 +72,7 @@ extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp, xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp); /* xfs_dir2_leaf.c */ -extern void xfs_dir2_leafn_verify(struct xfs_buf *bp); +extern void xfs_dir2_leafn_read_verify(struct xfs_buf *bp); extern int xfs_dir2_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp); extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args, -- cgit v1.2.3 From b0f539de9fcc543a3ffa40bc22bf51aca6ea6183 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Wed, 14 Nov 2012 17:53:49 +1100 Subject: xfs: connect up write verifiers to new buffers Metadata buffers that are read from disk have write verifiers already attached to them, but newly allocated buffers do not. Add appropriate write verifiers to all new metadata buffers. Signed-off-by: Dave Chinner Reviewed-by: Ben Myers Signed-off-by: Ben Myers --- fs/xfs/xfs_dir2_priv.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/xfs/xfs_dir2_priv.h') diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h index 7ec61af8449..01b82dcddc3 100644 --- a/fs/xfs/xfs_dir2_priv.h +++ b/fs/xfs/xfs_dir2_priv.h @@ -45,6 +45,7 @@ extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args, #else #define xfs_dir2_data_check(dp,bp) #endif +extern void xfs_dir2_data_write_verify(struct xfs_buf *bp); extern int __xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_buf *bp); extern int xfs_dir2_data_read(struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp); @@ -73,6 +74,7 @@ extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp, /* xfs_dir2_leaf.c */ extern void xfs_dir2_leafn_read_verify(struct xfs_buf *bp); +extern void xfs_dir2_leafn_write_verify(struct xfs_buf *bp); extern int xfs_dir2_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp); extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args, -- cgit v1.2.3 From 1813dd64057490e7a0678a885c4fe6d02f78bdc1 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Wed, 14 Nov 2012 17:54:40 +1100 Subject: 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 Reviewed-by: Phil White Signed-off-by: Ben Myers --- fs/xfs/xfs_dir2_priv.h | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'fs/xfs/xfs_dir2_priv.h') diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h index 01b82dcddc3..7da79f6515f 100644 --- a/fs/xfs/xfs_dir2_priv.h +++ b/fs/xfs/xfs_dir2_priv.h @@ -30,6 +30,8 @@ extern int xfs_dir_cilookup_result(struct xfs_da_args *args, const unsigned char *name, int len); /* xfs_dir2_block.c */ +extern const struct xfs_buf_ops xfs_dir2_block_buf_ops; + extern int xfs_dir2_block_addname(struct xfs_da_args *args); extern int xfs_dir2_block_getdents(struct xfs_inode *dp, void *dirent, xfs_off_t *offset, filldir_t filldir); @@ -45,7 +47,9 @@ extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args, #else #define xfs_dir2_data_check(dp,bp) #endif -extern void xfs_dir2_data_write_verify(struct xfs_buf *bp); + +extern const struct xfs_buf_ops xfs_dir2_data_buf_ops; + extern int __xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_buf *bp); extern int xfs_dir2_data_read(struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp); @@ -73,8 +77,8 @@ extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp, xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp); /* xfs_dir2_leaf.c */ -extern void xfs_dir2_leafn_read_verify(struct xfs_buf *bp); -extern void xfs_dir2_leafn_write_verify(struct xfs_buf *bp); +extern const struct xfs_buf_ops xfs_dir2_leafn_buf_ops; + extern int xfs_dir2_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp); extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args, -- cgit v1.2.3