From: "zhaoyang.huang" <zhaoyang.huang@unisoc.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Yu Zhao <yuzhao@google.com>, Michal Hocko <mhocko@kernel.org>,
Rik van Riel <riel@surriel.com>,
Shakeel Butt <shakeel.butt@linux.dev>,
Roman Gushchin <roman.gushchin@linux.dev>,
Johannes Weiner <hannes@cmpxchg.org>, <linux-mm@kvack.org>,
<linux-kernel@vger.kernel.org>,
Zhaoyang Huang <huangzhaoyang@gmail.com>, <steve.kang@unisoc.com>
Subject: [PATCH] mm: bail out from partial cgroup_reclaim inside shrink_lruvec
Date: Thu, 5 Feb 2026 14:45:28 +0800 [thread overview]
Message-ID: <20260205064528.32794-1-zhaoyang.huang@unisoc.com> (raw)
From: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
Oversize reclaiming observed in "echo xxx > memory.reclaim". This commit
would like to sync the stop creteria in shrink_node_memcgs to
shrink_lruvec to have partial cgroup_reclaim bail out as early as it can
be.
Signed-off-by: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
---
mm/vmscan.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 670fe9fae5ba..03bda1094621 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -4832,8 +4832,8 @@ static bool should_abort_scan(struct lruvec *lruvec, struct scan_control *sc)
int i;
enum zone_watermarks mark;
- /* don't abort memcg reclaim to ensure fairness */
- if (!root_reclaim(sc))
+ /* don't abort full walk memcg reclaim to ensure fairness */
+ if (!root_reclaim(sc) && sc->memcg_full_walk)
return false;
if (sc->nr_reclaimed >= max(sc->nr_to_reclaim, compact_gap(sc->order)))
--
2.25.1
next reply other threads:[~2026-02-05 6:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-05 6:45 zhaoyang.huang [this message]
2026-02-09 7:36 ` Zhaoyang Huang
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