[PATCH] mm: bail out from partial cgroup_reclaim inside shrink_lruvec
From: zhaoyang.huang <hidden>
Date: 2026-02-05 06:46:03
Also in:
lkml
Subsystem:
memory management, memory management - mglru (multi-gen lru), memory management - reclaim, the rest · Maintainers:
Andrew Morton, Johannes Weiner, Linus Torvalds
From: Zhaoyang Huang <redacted> 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 <redacted> --- 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