Add buddy_next_ptr_*

src/buddy.h

@@ -873,6 +873,16 @@ buddy_get_ptr_extent(const struct buddy_reqs *reqs, uint8_t n)
 #define _buddy_get_ptr_extent(reqs, n)		\
 	buddy_get_ptr_extent(reqs, n)
 
+static inline struct buddy_ptr_extent
+buddy_get_next_ptr_extent(struct buddy_reqs *reqs)
+{
+
+	CHECK_OBJ_NOTNULL(reqs, BUDDY_REQS_MAGIC);
+	if (reqs->i_wait.next == reqs->i_wait.finid)
+		return (buddy_ptr_extent_nil);
+	return (buddy_get_ptr_extent(reqs, reqs->i_wait.next++));
+}
+
 static inline struct buddy_off_page
 _buddy_get_off_page(const struct buddy_reqs *reqs, uint8_t n)
 {
@@ -918,6 +928,15 @@ buddy_get_ptr_page(const struct buddy_reqs *reqs, uint8_t n)
 #define _buddy_get_ptr_page(reqs, n)		\
 	buddy_get_ptr_page(reqs, n)
 
+static inline struct buddy_ptr_page
+buddy_get_next_ptr_page(struct buddy_reqs *reqs)
+{
+
+	CHECK_OBJ_NOTNULL(reqs, BUDDY_REQS_MAGIC);
+	if (reqs->i_wait.next == reqs->i_wait.finid)
+		return (buddy_ptr_page_nil);
+	return (buddy_get_ptr_page(reqs, reqs->i_wait.next++));
+}
 
 /* single allocations simplified interface */