diff options
Diffstat (limited to 'fs/xfs/xfs_buf.h')
| -rw-r--r-- | fs/xfs/xfs_buf.h | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 51bc16a1cd9..23f5642480b 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -111,6 +111,11 @@ struct xfs_buf_map { #define DEFINE_SINGLE_BUF_MAP(map, blkno, numblk) \ struct xfs_buf_map (map) = { .bm_bn = (blkno), .bm_len = (numblk) }; +struct xfs_buf_ops { + void (*verify_read)(struct xfs_buf *); + void (*verify_write)(struct xfs_buf *); +}; + typedef struct xfs_buf { /* * first cacheline holds all the fields needed for an uncontended cache @@ -154,9 +159,7 @@ typedef struct xfs_buf { unsigned int b_page_count; /* size of page array */ unsigned int b_offset; /* page offset in first page */ unsigned short b_error; /* error code on I/O */ - - void (*b_pre_io)(struct xfs_buf *); - /* pre-io callback function */ + const struct xfs_buf_ops *b_ops; #ifdef XFS_BUF_LOCK_TRACKING int b_last_holder; @@ -199,10 +202,11 @@ struct xfs_buf *xfs_buf_get_map(struct xfs_buftarg *target, xfs_buf_flags_t flags); struct xfs_buf *xfs_buf_read_map(struct xfs_buftarg *target, struct xfs_buf_map *map, int nmaps, - xfs_buf_flags_t flags, xfs_buf_iodone_t verify); + xfs_buf_flags_t flags, + const struct xfs_buf_ops *ops); void xfs_buf_readahead_map(struct xfs_buftarg *target, struct xfs_buf_map *map, int nmaps, - xfs_buf_iodone_t verify); + const struct xfs_buf_ops *ops); static inline struct xfs_buf * xfs_buf_get( @@ -221,10 +225,10 @@ xfs_buf_read( xfs_daddr_t blkno, size_t numblks, xfs_buf_flags_t flags, - xfs_buf_iodone_t verify) + const struct xfs_buf_ops *ops) { DEFINE_SINGLE_BUF_MAP(map, blkno, numblks); - return xfs_buf_read_map(target, &map, 1, flags, verify); + return xfs_buf_read_map(target, &map, 1, flags, ops); } static inline void @@ -232,10 +236,10 @@ xfs_buf_readahead( struct xfs_buftarg *target, xfs_daddr_t blkno, size_t numblks, - xfs_buf_iodone_t verify) + const struct xfs_buf_ops *ops) { DEFINE_SINGLE_BUF_MAP(map, blkno, numblks); - return xfs_buf_readahead_map(target, &map, 1, verify); + return xfs_buf_readahead_map(target, &map, 1, ops); } struct xfs_buf *xfs_buf_get_empty(struct xfs_buftarg *target, size_t numblks); @@ -246,7 +250,7 @@ struct xfs_buf *xfs_buf_get_uncached(struct xfs_buftarg *target, size_t numblks, int flags); struct xfs_buf *xfs_buf_read_uncached(struct xfs_buftarg *target, xfs_daddr_t daddr, size_t numblks, int flags, - xfs_buf_iodone_t verify); + const struct xfs_buf_ops *ops); void xfs_buf_hold(struct xfs_buf *bp); /* Releasing Buffers */ |