Use mem_cgroup_is_root() API to check if memcg is root memcg instead of open coding. Signed-off-by: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx> --- mm/vmpressure.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmpressure.c b/mm/vmpressure.c index 0590f00..d69019f 100644 --- a/mm/vmpressure.c +++ b/mm/vmpressure.c @@ -280,7 +280,7 @@ void vmpressure(gfp_t gfp, struct mem_cgroup *memcg, bool tree, enum vmpressure_levels level; /* For now, no users for root-level efficiency */ - if (!memcg || memcg == root_mem_cgroup) + if (!memcg || mem_cgroup_is_root(memcg)) return; spin_lock(&vmpr->sr_lock); -- 1.8.3.1
