linux-kernel - [PATCH v4 3/8] mm: memcg: account memory used for memcg vmstats and lruvec stats

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Date: Wed,  1 May 2024 10:26:12 -0700
From: Shakeel Butt <shakeel.butt@...ux.dev>
To: Andrew Morton <akpm@...ux-foundation.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...nel.org>,
	Roman Gushchin <roman.gushchin@...ux.dev>,
	Muchun Song <muchun.song@...ux.dev>,
	Yosry Ahmed <yosryahmed@...gle.com>,
	"T . J . Mercier" <tjmercier@...gle.com>
Cc: kernel-team@...a.com,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v4 3/8] mm: memcg: account memory used for memcg vmstats and lruvec stats

From: Roman Gushchin <roman.gushchin@...ux.dev>

The percpu memory used by memcg's memory statistics is already accounted.
For consistency, let's enable accounting for vmstats and lruvec stats
as well.

Signed-off-by: Roman Gushchin <roman.gushchin@...ux.dev>
Signed-off-by: Shakeel Butt <shakeel.butt@...ux.dev>
Reviewed-by: Yosry Ahmed <yosryahmed@...gle.com>
Reviewed-by: T.J. Mercier <tjmercier@...gle.com>
---
Changes since v3:
- N/A

 mm/memcontrol.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 7126459ec56a..434cff91b65e 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5545,8 +5545,8 @@ static int alloc_mem_cgroup_per_node_info(struct mem_cgroup *memcg, int node)
 	if (!pn)
 		return 1;
 
-	pn->lruvec_stats = kzalloc_node(sizeof(struct lruvec_stats), GFP_KERNEL,
-					node);
+	pn->lruvec_stats = kzalloc_node(sizeof(struct lruvec_stats),
+					GFP_KERNEL_ACCOUNT, node);
 	if (!pn->lruvec_stats)
 		goto fail;
 
@@ -5617,7 +5617,8 @@ static struct mem_cgroup *mem_cgroup_alloc(struct mem_cgroup *parent)
 		goto fail;
 	}
 
-	memcg->vmstats = kzalloc(sizeof(struct memcg_vmstats), GFP_KERNEL);
+	memcg->vmstats = kzalloc(sizeof(struct memcg_vmstats),
+				 GFP_KERNEL_ACCOUNT);
 	if (!memcg->vmstats)
 		goto fail;
 
-- 
2.43.0