+ mm-memcg-mem_cgroup_per_node-is-already-set-to-0-on-allocation.patch added to -mm tree

+ mm-memcg-mem_cgroup_per_node-is-already-set-to-0-on-allocation.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: mm/memcg: mem_cgroup_per_node is already set to 0 on allocation
has been added to the -mm tree.  Its filename is
     mm-memcg-mem_cgroup_per_node-is-already-set-to-0-on-allocation.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-memcg-mem_cgroup_per_node-is-already-set-to-0-on-allocation.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-memcg-mem_cgroup_per_node-is-already-set-to-0-on-allocation.patch

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------------------------------------------------------
From: Wei Yang <richard.weiyang@gmail.com>
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@gmail.com
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>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 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
@@ -5102,8 +5102,6 @@ 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;
_

Patches currently in -mm which might be from richard.weiyang@gmail.com are

mm-memcg-mem_cgroup_per_node-is-already-set-to-0-on-allocation.patch
mm-memcg-retrieve-parent-memcg-from-cssparent.patch
mm-page_alloc-add-same-penalty-is-enough-to-get-round-robin-order.patch
mm-page_alloc-add-penalty-to-local_node.patch
memcg-do-not-tweak-node-in-alloc_mem_cgroup_per_node_info.patch