diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_refcount.c')
-rw-r--r-- | fs/xfs/libxfs/xfs_refcount.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_refcount.c b/fs/xfs/libxfs/xfs_refcount.c index 3a0bd1c002ab..97afe4faf709 100644 --- a/fs/xfs/libxfs/xfs_refcount.c +++ b/fs/xfs/libxfs/xfs_refcount.c @@ -1924,3 +1924,39 @@ xfs_refcount_has_record( return xfs_btree_has_record(cur, &low, &high, xfs_refcount_has_key_gap, exists); } + +struct xfs_refcount_query_range_info { + xfs_refcount_query_range_fn fn; + void *priv; +}; + +/* Format btree record and pass to our callback. */ +STATIC int +xfs_refcount_query_range_helper( + struct xfs_btree_cur *cur, + const union xfs_btree_rec *rec, + void *priv) +{ + struct xfs_refcount_query_range_info *query = priv; + struct xfs_refcount_irec irec; + + xfs_refcount_btrec_to_irec(cur, rec, &irec); + return query->fn(cur, &irec, query->priv); +} + +/* Find all refcount records between two keys. */ +int +xfs_refcount_query_range( + struct xfs_btree_cur *cur, + struct xfs_refcount_irec *low_rec, + struct xfs_refcount_irec *high_rec, + xfs_refcount_query_range_fn fn, + void *priv) +{ + union xfs_btree_irec low_brec = { .rc = *low_rec }; + union xfs_btree_irec high_brec = { .rc = *high_rec }; + struct xfs_refcount_query_range_info query = { .priv = priv, .fn = fn }; + + return xfs_btree_query_range(cur, &low_brec, &high_brec, + xfs_refcount_query_range_helper, &query); +} |