From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-173.mta0.migadu.com (out-173.mta0.migadu.com [91.218.175.173]) (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 EF0AF3E92B9 for ; Mon, 13 Jul 2026 10:27:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783938432; cv=none; b=LpqMOJeFEDKr8P3HzHzwCUfWjs9r4w3KfktSol6L8BSlGtsfc7bOKDzKnwht2tRC2B0fFldyQx+e9baMfg3Tw80MdGDQMQtLzj4pNT4C2k9/v0T0rsBne8LCndzAG+qSBdYjklT62XRZ1HzFKuMGqkF57P4WZQMCneSd7DKeUww= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783938432; c=relaxed/simple; bh=tlSStQRjz7IsgoduonWvy/BiNHcyY6I1VMddmxBXKcc=; h=Message-ID:Date:MIME-Version:Cc:Subject:To:References:From: In-Reply-To:Content-Type; b=Tv51Udd9/IrC2uASP+qvPn/7Rx5LSicxQ+2TEoxuUEjvpuOEkzJOOh/JWMkqagIhp1Q0BRiq6kGlrdZeofmQfYl9BIrCgnkp5bJMn29+qaQLlpH+q15FPjPE90QeegKb0+3QrqyZfO1cJOC1kio+Lg17BZ5j6DZxlwDJSFHxOUo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=t7KmIKiI; arc=none smtp.client-ip=91.218.175.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="t7KmIKiI" Message-ID: <877c39be-d4d6-4d9c-b824-18d9463c62c7@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1783938425; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hI0ulS+e7/Y2oO5fBiqc90A7kYsME7pKoySFXxv5Y8o=; b=t7KmIKiIfaH9vl5ApL6tbaX1tiOn/PaCox8ALC8rjDdI01CWo4AmLTP0tK6BQlWieFWasG 0JO4hkTfq9GOdwbNl5DqBRt225BskLmxXZfbAVmz6vFMi2FQ7hPHhjyRUltdm1FqaK6hPs 48nvhCZmrCrmd0yqgcc0L3n3D12Qv8w= Date: Mon, 13 Jul 2026 18:26:58 +0800 Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Cc: cui.tao@linux.dev, Johannes Weiner , Michal Hocko , Muchun Song , cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Guopeng Zhang Subject: Re: [PATCH] mm: memcg-v1: account vmpressure event allocations To: Guopeng Zhang , Andrew Morton , Roman Gushchin , Shakeel Butt , Stanislav Fort References: <20260713085520.2953121-1-guopeng.zhang@linux.dev> X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Tao Cui In-Reply-To: <20260713085520.2953121-1-guopeng.zhang@linux.dev> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT 在 2026/7/13 16:55, Guopeng Zhang 写道: > From: Guopeng Zhang > > Commit 72797d218b43 ("mm/memcg: v1: account event registrations and drop > world-writable cgroup.event_control") accounted cgroup v1 event > registration allocations with GFP_KERNEL_ACCOUNT, but missed struct > vmpressure_event. > > Use GFP_KERNEL_ACCOUNT for this allocation as well. > > Fixes: 72797d218b43 ("mm/memcg: v1: account event registrations and drop world-writable cgroup.event_control") > Signed-off-by: Guopeng Zhang > --- > mm/memcontrol-v1.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/mm/memcontrol-v1.c b/mm/memcontrol-v1.c > index e8b6e1560278..f8424ec3734b 100644 > --- a/mm/memcontrol-v1.c > +++ b/mm/memcontrol-v1.c > @@ -1721,7 +1721,7 @@ int vmpressure_register_event(struct mem_cgroup *memcg, > mode = ret; > } > > - ev = kzalloc_obj(*ev); > + ev = kzalloc_obj(*ev, GFP_KERNEL_ACCOUNT); > if (!ev) { > ret = -ENOMEM; > goto out; Acked-by: Tao Cui