[PATCH RESEND] mm: memcontrol: Correct the comment of mem_cgroup_iter()

[Miaohe Lin]

Since commit 9da83f3fc74b ("mm, memcg: clean up reclaim iter array"), the
arg @reclaim has no priority field anymore.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
 mm/memcontrol.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 75cd1a1e66c8..a57aa0f42d40 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1138,9 +1138,9 @@ static __always_inline struct mem_cgroup *get_mem_cgroup_from_current(void)
  * invocations for reference counting, or use mem_cgroup_iter_break()
  * to cancel a hierarchy walk before the round-trip is complete.
  *
- * Reclaimers can specify a node and a priority level in @reclaim to
- * divide up the memcgs in the hierarchy among all concurrent
- * reclaimers operating on the same node and priority.
+ * Reclaimers can specify a node in @reclaim to divide up the memcgs
+ * in the hierarchy among all concurrent reclaimers operating on the
+ * same node.
  */
 struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *root,
 				   struct mem_cgroup *prev,
-- 
2.19.1