@@ -114,6 +114,23 @@ struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *, xfs_agnumber_t,
int tag);
void xfs_perag_put(struct xfs_perag *pag);
+/*
+ * Perag iteration APIs
+ */
+#define for_each_perag(mp, next_agno, pag) \
+ for ((next_agno) = 0, (pag) = xfs_perag_get((mp), 0); \
+ (pag) != NULL; \
+ (next_agno) = (pag)->pag_agno + 1, \
+ xfs_perag_put(pag), \
+ (pag) = xfs_perag_get((mp), (next_agno)))
+
+#define for_each_perag_tag(mp, next_agno, pag, tag) \
+ for ((next_agno) = 0, (pag) = xfs_perag_get_tag((mp), 0, (tag)); \
+ (pag) != NULL; \
+ (next_agno) = (pag)->pag_agno + 1, \
+ xfs_perag_put(pag), \
+ (pag) = xfs_perag_get_tag((mp), (next_agno), (tag)))
+
struct aghdr_init_data {
/* per ag data */
xfs_agblock_t agno; /* ag to init */