From: Wei Yang <richard.weiyang@xxxxxxxxx> Subject: mm/memcg: mem_cgroup_per_node is already set to 0 on allocation kzalloc_node() would set data to 0, so it's not necessary to set it again. Link: https://lkml.kernel.org/r/20220201004643.8391-1-richard.weiyang@xxxxxxxxx Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx> Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> Acked-by: Michal Hocko <mhocko@xxxxxxxx> Reviewed-by: Roman Gushchin <guro@xxxxxx> Reviewed-by: Mike Rapoport <rppt@xxxxxxxxxxxxx> Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx> Cc: Roman Gushchin <roman.gushchin@xxxxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Cc: Suren Baghdasaryan <surenb@xxxxxxxxxx> Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx> Cc: Vlastimil Babka <vbabka@xxxxxxx> Cc: Yang Shi <shy828301@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/memcontrol.c | 2 -- 1 file changed, 2 deletions(-) --- a/mm/memcontrol.c~mm-memcg-mem_cgroup_per_node-is-already-set-to-0-on-allocation +++ a/mm/memcontrol.c @@ -5105,8 +5105,6 @@ static int alloc_mem_cgroup_per_node_inf } lruvec_init(&pn->lruvec); - pn->usage_in_excess = 0; - pn->on_tree = false; pn->memcg = memcg; memcg->nodeinfo[node] = pn; _
