From: Wanpeng Li <liwp@xxxxxxxxxxxxxxxxxx> Signed-off-by: Wanpeng Li <liwp.linux@xxxxxxxxx> --- mm/memcontrol.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 5e4d1ab..69a7d45 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -4176,7 +4176,7 @@ static int mem_cgroup_swappiness_write(struct cgroup *cgrp, struct cftype *cft, struct mem_cgroup *memcg = mem_cgroup_from_cont(cgrp); struct mem_cgroup *parent; - if (val > 100) + if (val > 100 || val < 0) return -EINVAL; if (cgrp->parent == NULL) -- 1.7.5.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>