diff options
Diffstat (limited to 'fs/xfs/scrub/rcbag_btree.c')
-rw-r--r-- | fs/xfs/scrub/rcbag_btree.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/fs/xfs/scrub/rcbag_btree.c b/fs/xfs/scrub/rcbag_btree.c index 762960e012a0..709356dc6256 100644 --- a/fs/xfs/scrub/rcbag_btree.c +++ b/fs/xfs/scrub/rcbag_btree.c @@ -310,3 +310,61 @@ rcbagbt_destroy_cur_cache(void) kmem_cache_destroy(rcbagbt_cur_cache); rcbagbt_cur_cache = NULL; } + +/* Look up the refcount bag record corresponding to this reverse mapping. */ +int +rcbagbt_lookup_eq( + struct xfs_btree_cur *cur, + const struct xfs_rmap_irec *rmap, + int *success) +{ + struct rcbag_rec *rec = (struct rcbag_rec *)&cur->bc_rec; + + rec->rbg_startblock = rmap->rm_startblock; + rec->rbg_blockcount = rmap->rm_blockcount; + + return xfs_btree_lookup(cur, XFS_LOOKUP_EQ, success); +} + +/* Get the data from the pointed-to record. */ +int +rcbagbt_get_rec( + struct xfs_btree_cur *cur, + struct rcbag_rec *rec, + int *has) +{ + union xfs_btree_rec *btrec; + int error; + + error = xfs_btree_get_rec(cur, &btrec, has); + if (error || !(*has)) + return error; + + memcpy(rec, btrec, sizeof(struct rcbag_rec)); + return 0; +} + +/* Update the record referred to by cur to the value given. */ +int +rcbagbt_update( + struct xfs_btree_cur *cur, + const struct rcbag_rec *rec) +{ + union xfs_btree_rec btrec; + + memcpy(&btrec, rec, sizeof(struct rcbag_rec)); + return xfs_btree_update(cur, &btrec); +} + +/* Update the record referred to by cur to the value given. */ +int +rcbagbt_insert( + struct xfs_btree_cur *cur, + const struct rcbag_rec *rec, + int *success) +{ + struct rcbag_rec *btrec = (struct rcbag_rec *)&cur->bc_rec; + + memcpy(btrec, rec, sizeof(struct rcbag_rec)); + return xfs_btree_insert(cur, success); +} |