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From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org,vbabka@kernel.org,stable@vger.kernel.org,shakeel.butt@linux.dev,roman.gushchin@linux.dev,muchun.song@linux.dev,mhocko@kernel.org,hannes@cmpxchg.org,cuitao@kylinos.cn,alex@ghiti.fr,zhangguopeng@kylinos.cn,akpm@linux-foundation.org
Subject: [merged mm-stable] mm-memcontrol-update-state_local-when-flushing-nmi-stats.patch removed from -mm tree
Date: Tue, 04 Aug 2026 19:26:55 -0700	[thread overview]
Message-ID: <20260805022655.A58451F000E9@smtp.kernel.org> (raw)


The quilt patch titled
     Subject: mm: memcontrol: update state_local when flushing NMI stats
has been removed from the -mm tree.  Its filename was
     mm-memcontrol-update-state_local-when-flushing-nmi-stats.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Guopeng Zhang <zhangguopeng@kylinos.cn>
Subject: mm: memcontrol: update state_local when flushing NMI stats
Date: Mon, 13 Jul 2026 16:50:53 +0800

flush_nmi_stats() updates state[] for kmem and slab counters but leaves
the corresponding state_local[] counters unchanged.  Local kmem and slab
statistics therefore miss updates collected through the NMI-safe atomic
path.

Update state_local[] together with state[].

Link: https://lore.kernel.org/20260713085053.2916813-1-guopeng.zhang@linux.dev
Fixes: 940b01fc8dc1 ("memcg: nmi safe memcg stats for specific archs")
Signed-off-by: Guopeng Zhang <zhangguopeng@kylinos.cn>
Acked-by: Tao Cui <cuitao@kylinos.cn>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/memcontrol.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/mm/memcontrol.c~mm-memcontrol-update-state_local-when-flushing-nmi-stats
+++ a/mm/memcontrol.c
@@ -4443,6 +4443,7 @@ static void flush_nmi_stats(struct mem_c
 		int index = memcg_stats_index(MEMCG_KMEM);
 
 		memcg->vmstats->state[index] += kmem;
+		memcg->vmstats->state_local[index] += kmem;
 		if (parent)
 			parent->vmstats->state_pending[index] += kmem;
 	}
@@ -4460,9 +4461,11 @@ static void flush_nmi_stats(struct mem_c
 			int index = memcg_stats_index(NR_SLAB_RECLAIMABLE_B);
 
 			lstats->state[index] += slab;
+			lstats->state_local[index] += slab;
 			if (plstats)
 				plstats->state_pending[index] += slab;
 			memcg->vmstats->state[index] += slab;
+			memcg->vmstats->state_local[index] += slab;
 			if (parent)
 				parent->vmstats->state_pending[index] += slab;
 		}
@@ -4471,9 +4474,11 @@ static void flush_nmi_stats(struct mem_c
 			int index = memcg_stats_index(NR_SLAB_UNRECLAIMABLE_B);
 
 			lstats->state[index] += slab;
+			lstats->state_local[index] += slab;
 			if (plstats)
 				plstats->state_pending[index] += slab;
 			memcg->vmstats->state[index] += slab;
+			memcg->vmstats->state_local[index] += slab;
 			if (parent)
 				parent->vmstats->state_pending[index] += slab;
 		}
_

Patches currently in -mm which might be from zhangguopeng@kylinos.cn are

mm-memcg-v1-account-vmpressure-event-allocations.patch
mm-memcg-v1-fix-wrong-linux-mm-list-address-in-deprecation-warnings.patch
mm-memcontrol-drop-unused-cpu-argument-from-flush_nmi_stats.patch
mm-memcontrol-factor-out-memcg-kmem-uncharge-sequence.patch
mm-memcg-v1-make-mem_cgroup_oom_notify_cb-return-void.patch
mm-memcg-stop-reclaim-when-a-limit-update-is-superseded.patch


                 reply	other threads:[~2026-08-05  2:26 UTC|newest]

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