X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=mm%2Fvmscan.c;h=7f63a9381f71ebbb0c1f9bdda94a913c930280f0;hb=62886a367b59d7740f9db89fd418ab3e450ab7c7;hp=2d978b28a410b25df1acde351630dee387efbbe5;hpb=aa57e0b281453334267e836d15cfdb933f6d6f97;p=firefly-linux-kernel-4.4.55.git

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 2d978b28a410..7f63a9381f71 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -175,7 +175,7 @@ static bool sane_reclaim(struct scan_control *sc)
 	if (!memcg)
 		return true;
 #ifdef CONFIG_CGROUP_WRITEBACK
-	if (memcg->css.cgroup)
+	if (cgroup_on_dfl(memcg->css.cgroup))
 		return true;
 #endif
 	return false;