diff options
Diffstat (limited to 'fs/xfs/xfs_buf.c')
| -rw-r--r-- | fs/xfs/xfs_buf.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 55661cbdb51b..349d42fde1d7 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -549,17 +549,17 @@ xfs_buf_hash_destroy( } /* - * Look up, and creates if absent, a lockable buffer for - * a given range of an inode. The buffer is returned - * locked. No I/O is implied by this call. + * Look up (and insert if absent), a lockable buffer for a given + * range of an inode. The buffer is returned locked. No I/O is + * implied by this call. */ -xfs_buf_t * +static struct xfs_buf * _xfs_buf_find( struct xfs_buftarg *btp, struct xfs_buf_map *map, int nmaps, xfs_buf_flags_t flags, - xfs_buf_t *new_bp) + struct xfs_buf *new_bp) { struct xfs_perag *pag; xfs_buf_t *bp; @@ -649,6 +649,17 @@ found: return bp; } +struct xfs_buf * +xfs_buf_incore( + struct xfs_buftarg *target, + xfs_daddr_t blkno, + size_t numblks, + xfs_buf_flags_t flags) +{ + DEFINE_SINGLE_BUF_MAP(map, blkno, numblks); + return _xfs_buf_find(target, &map, 1, flags, NULL); +} + /* * Assembles a buffer covering the specified range. The code is optimised for * cache hits, as metadata intensive workloads will see 3 orders of magnitude |