From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D14564499B9 for ; Mon, 13 Jul 2026 20:04:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783973064; cv=none; b=rdK6Dxwr9kjIdtWKf5s+KEZqkLUkh8VOOJUqOeTn9HYB9gFmT336rM3lVHcyR4LkKE9rG0+85+C/MYv+vIpoeCikwqu5xdDC7yvpdPvw5IA4KNkwK+XAdp1fzNPX8XAoGqild6QTrR/r6w0q8Swv81T2jV/7WwTXmQHQCSJRONo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783973064; c=relaxed/simple; bh=IB3FrVXAc07eCVbgRLY9FrCdOBpDEEMV8loRpgIg9zM=; h=Date:To:From:Subject:Message-Id; b=hPt5aY6sstugamakjjOmpzhPvlA4N3K+aMBdTIaD8yh28dgBDwcPoxoqkfgHSIkGChLjm6nPqpNOsLXvRcXptFFom+9etsQSO+evz/gJTAYjUOPKw3xsiD2iRFohLijfpYyxyLdtQaIUkeZAg8XvTLMpIm8lz8/TSD1YvCfDimY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=Lrn90r2r; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="Lrn90r2r" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3FEC31F000E9; Mon, 13 Jul 2026 20:04:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1783973062; bh=6/y0tbOTWiNUvBuGX1RVZPqUzqgXSM+cB+oYPWW+uEM=; h=Date:To:From:Subject; b=Lrn90r2rmygmAvg686YY3Ut/4rAq7UFki0tinpGn99+gt3QUXT6Rcxpn2M7RSo1Dn qcGLmJD5GsXYkiFkLPfkp8YcmKrg1UBi1jUNCQKuXgOlDC7uvcxEZ4fUMSS8FhVxEb vsq41IYRTUCFere8iiPMHSWriIzcgg3jjevFS9lc= Date: Mon, 13 Jul 2026 13:04:21 -0700 To: mm-commits@vger.kernel.org,shakeel.butt@linux.dev,roman.gushchin@linux.dev,muchun.song@linux.dev,mhocko@suse.com,hannes@cmpxchg.org,zhangguopeng@kylinos.cn,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-memcontrol-drop-unused-cpu-argument-from-flush_nmi_stats.patch added to mm-new branch Message-Id: <20260713200422.3FEC31F000E9@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm: memcontrol: drop unused cpu argument from flush_nmi_stats has been added to the -mm mm-new branch. Its filename is mm-memcontrol-drop-unused-cpu-argument-from-flush_nmi_stats.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memcontrol-drop-unused-cpu-argument-from-flush_nmi_stats.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. The mm-new branch of mm.git is not included in linux-next If a few days of testing in mm-new is successful, the patch will me moved into mm.git's mm-unstable branch, which is included in linux-next Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: Guopeng Zhang Subject: mm: memcontrol: drop unused cpu argument from flush_nmi_stats Date: Mon, 13 Jul 2026 17:00:10 +0800 flush_nmi_stats() does not use its cpu argument. Remove it from the function and its !CONFIG_MEMCG_NMI_SAFETY_REQUIRES_ATOMIC stub. The caller still uses cpu for the subsequent per-CPU rstat flush. No functional change. Link: https://lore.kernel.org/20260713090010.2991906-1-guopeng.zhang@linux.dev Signed-off-by: Guopeng Zhang Acked-by: Michal Hocko Acked-by: Johannes Weiner Reviewed-by: Muchun Song Cc: Roman Gushchin Cc: Shakeel Butt Signed-off-by: Andrew Morton --- mm/memcontrol.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) --- a/mm/memcontrol.c~mm-memcontrol-drop-unused-cpu-argument-from-flush_nmi_stats +++ a/mm/memcontrol.c @@ -4432,8 +4432,7 @@ static void mem_cgroup_stat_aggregate(st } #ifdef CONFIG_MEMCG_NMI_SAFETY_REQUIRES_ATOMIC -static void flush_nmi_stats(struct mem_cgroup *memcg, struct mem_cgroup *parent, - int cpu) +static void flush_nmi_stats(struct mem_cgroup *memcg, struct mem_cgroup *parent) { int nid; @@ -4484,8 +4483,7 @@ static void flush_nmi_stats(struct mem_c } } #else -static void flush_nmi_stats(struct mem_cgroup *memcg, struct mem_cgroup *parent, - int cpu) +static void flush_nmi_stats(struct mem_cgroup *memcg, struct mem_cgroup *parent) {} #endif @@ -4497,7 +4495,7 @@ static void mem_cgroup_css_rstat_flush(s struct aggregate_control ac; int nid; - flush_nmi_stats(memcg, parent, cpu); + flush_nmi_stats(memcg, parent); statc = per_cpu_ptr(memcg->vmstats_percpu, cpu); _ Patches currently in -mm which might be from zhangguopeng@kylinos.cn are mm-memcg-remove-stray-text-from-obj_stock_pcp-comment.patch mm-memcontrol-update-state_local-when-flushing-nmi-stats.patch 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