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Diffstat (limited to 'fs/xfs/libxfs/xfs_btree.h')
-rw-r--r--fs/xfs/libxfs/xfs_btree.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h
index fa3cd8ab9aba..ced1e65d1483 100644
--- a/fs/xfs/libxfs/xfs_btree.h
+++ b/fs/xfs/libxfs/xfs_btree.h
@@ -464,9 +464,13 @@ xfs_failaddr_t xfs_btree_lblock_verify(struct xfs_buf *bp,
uint xfs_btree_compute_maxlevels(uint *limits, unsigned long len);
unsigned long long xfs_btree_calc_size(uint *limits, unsigned long long len);
-/* return codes */
-#define XFS_BTREE_QUERY_RANGE_CONTINUE (XFS_ITER_CONTINUE) /* keep iterating */
-#define XFS_BTREE_QUERY_RANGE_ABORT (XFS_ITER_ABORT) /* stop iterating */
+/*
+ * Return codes for the query range iterator function are 0 to continue
+ * iterating, and non-zero to stop iterating. Any non-zero value will be
+ * passed up to the _query_range caller. The special value -ECANCELED can be
+ * used to stop iteration, because _query_range never generates that error
+ * code on its own.
+ */
typedef int (*xfs_btree_query_range_fn)(struct xfs_btree_cur *cur,
union xfs_btree_rec *rec, void *priv);