mm/vmscan.c: remove unused return value of shrink_node

The return value of shrink_node is not used, so remove unnecessary
operations.

Link: http://lkml.kernel.org/r/20191128143524.3223-1-fishland@aliyun.com
Signed-off-by: Liu Song <liu.song11@zte.com.cn>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 572fb17..9a543d1 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2695,7 +2695,7 @@ static void shrink_node_memcgs(pg_data_t *pgdat, struct scan_control *sc)
        } while ((memcg = mem_cgroup_iter(target_memcg, memcg, NULL)));
 }
 
-static bool shrink_node(pg_data_t *pgdat, struct scan_control *sc)
+static void shrink_node(pg_data_t *pgdat, struct scan_control *sc)
 {
        struct reclaim_state *reclaim_state = current->reclaim_state;
        unsigned long nr_reclaimed, nr_scanned;
@@ -2874,8 +2874,6 @@ again:
         */
        if (reclaimable)
                pgdat->kswapd_failures = 0;
-
-       return reclaimable;
 }
 
 /*