From: Wei Yang <richard.weiyang@gmail.com>
To: hannes@cmpxchg.org, mhocko@kernel.org, vdavydov.dev@gmail.com,
akpm@linux-foundation.org, shakeelb@google.com, guro@fb.com,
willy@infradead.org, songmuchun@bytedance.com,
shy828301@gmail.com, surenb@google.com
Cc: linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
linux-mm@kvack.org, vbabka@suse.cz,
Wei Yang <richard.weiyang@gmail.com>
Subject: [PATCH 1/2] mm/memcg: mem_cgroup_per_node is already set to 0 on allocation
Date: Tue, 1 Feb 2022 00:46:42 +0000 [thread overview]
Message-ID: <20220201004643.8391-1-richard.weiyang@gmail.com> (raw)
kzalloc_node() would set data to 0, so it's not necessary to set it
again.
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Roman Gushchin <guro@fb.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
---
mm/memcontrol.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ea8460658550..ce7060907df2 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5070,8 +5070,6 @@ static int alloc_mem_cgroup_per_node_info(struct mem_cgroup *memcg, int node)
}
lruvec_init(&pn->lruvec);
- pn->usage_in_excess = 0;
- pn->on_tree = false;
pn->memcg = memcg;
memcg->nodeinfo[node] = pn;
--
2.33.1
next reply other threads:[~2022-02-01 0:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-01 0:46 Wei Yang [this message]
2022-02-01 0:46 ` [PATCH 2/2] mm/memcg: retrieve parent memcg from css.parent Wei Yang
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