From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f53.google.com (mail-wm1-f53.google.com [209.85.128.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A4DA53E9589 for ; Mon, 13 Jul 2026 11:39:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.53 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783942798; cv=none; b=IHAbRyWPBN05SmxEf0GYBR/eyHD+eJsBk3S+MBjW3/oCzqB/RzbONRcU8g5zh8Ko6H/pTAtcgNhwhO9UqTFditnzMdgEbnjZBMbQSGkEd5UBMbf+GGPNZK+Zgd42JP/NNvyAxi0P2q7/pXQokP9jA5upMUhT2FbT18v8anvQWSU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783942798; c=relaxed/simple; bh=HH8yJYozLc4qkKrr/HAaxxtxQon+M9HwA47b2g1ZfE0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=BnweI9a7ycd427BBObi2OUDuxgUmbJ5U67jWgvMdhR5OIZ9exp6bK16mCd2Mbpe/3CAcA1Ii8p9wVyHQkx7+drO1jzUCLOnitosq9itwwJQ8TJl+8qQ92K9cPeCcTWtQHtuWW9rJe5XLiRzQ7EIVhZwmaqpPkuXnfTqL7AT0xdY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=cmpxchg.org; spf=pass smtp.mailfrom=cmpxchg.org; dkim=pass (2048-bit key) header.d=cmpxchg.org header.i=@cmpxchg.org header.b=MBIf/ySZ; arc=none smtp.client-ip=209.85.128.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=cmpxchg.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cmpxchg.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cmpxchg.org header.i=@cmpxchg.org header.b="MBIf/ySZ" Received: by mail-wm1-f53.google.com with SMTP id 5b1f17b1804b1-493c52cde9eso27544985e9.3 for ; Mon, 13 Jul 2026 04:39:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cmpxchg.org; s=google; t=1783942795; x=1784547595; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=uhEJSmb1zAc+1BJfU7rn0s0R4zfNHqR+TO6aCnEihGQ=; b=MBIf/ySZmCVAhal4XZqddfeWpugm067UrkyGqM9wBcZCyIRCj2jTDSbA/RWy/nGRqj mKA8nPiI4N/LAgtkGrBq/N3ktJRZCzvJdD0dObVPiBUzWdj/JER3x4g1cS0bNd+W5PCp vMTRwkV6npDdYdaElPcziIrqFuWwFAIPXSZfOcu8Q5p9HD+NWAk9Uvk5mkCO3G06A8AA bKuzNn1mc5Hiuj25kXgvHZ3sGyVjnfQ+SvDViTSmqes8b7eKJDSyeULnLNmcaAvkmVOm Xp/H2VKhxfdBoWiuA9s2SKjqb3bV3X26514nxb+b1hpYlLpCQPC3xgFB9iRAgJ6jg8cD aZZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783942795; x=1784547595; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=uhEJSmb1zAc+1BJfU7rn0s0R4zfNHqR+TO6aCnEihGQ=; b=X7HwVuRLq/j5BT25NF8NIDlNTUX1HA6BuiQUc0XGWHOauAPBGimtfsOjR1FryJtAdk vGmPF3NG+PA9cO+1sF2o2s1UTmE4VljVLSt04FC/ZFFAkCu07jufbandj7f/D7CulZlA 6LqsRGLBuls2E8hgsRk24fu/afcTxXetkNlGNW8XYxIUds39+/YGLCs+OGl1Z3QYLlpT IavYjnDkxnARlQSEB/0tQbVA3g1poUE/x4e6DMFZDReG5KIOL6rGKCg3VOk4AiuyI6l9 g0/GVhnmn57sZcHnCTNO3SGhVBaZ1oFQNp5rAnZzLW7l0rIPEp7zEBSE2tfPvDW7NyD0 1YjQ== X-Forwarded-Encrypted: i=1; AHgh+RrPTfmZNLJM6brAcsBB0XEXj1QOsZwxkoTU4t1Z8U9aGutQwekRT1RPV5T40cdmk/mR42EXnOo=@vger.kernel.org X-Gm-Message-State: AOJu0YyVzjBwIRgg/+WWtaeo8aTppqejmYkyar1q3fg6YdMtZRrm82Q5 hjBfX1PGPcwHMmTMNTN6s6KNzKO96ZQrqG5jrxKbm99gotfu1/GarQ8S8kWRxQ5HZEM= X-Gm-Gg: AfdE7cky5HOclq1yD3EyLEeEukx5s5dECyIaWcvtlGtn7i4cReLdZSI6/vuRQ+oSqad Dh3X8VIPwr1i6SEf3rWibHEVzUtu5+LipYkXFfT8UnYjxin0yBO4KawUQGRmNK2Gh8Evx4/jDvx Y+Jcrff6iUIFSkewiBVuSmZFcop7kY558+D9CAZzdkVb0jy7S43t+lG1z6/mvA7kpW7JFrUXjyR 2eMYFoW1J7PCjqlauucZJwgvKLgyhyS2Wca5L6wopy4sRMnyy8aaXYonAj1fhjBy5uXmXrl9vUv HKADFNT0nOsid4cY5d+YLLgRlH0r3KXd3TKZTKYg4B+iIhoWb4Yi0cY6Kxqor4xrIBLU6jlAfsu zDKA0zrT8fnTnRD60rfilLNon3qwdy122KQmShZayPLxYIz9yDPkPNsyyGh8JEraXmbmZNp5Qc+ MzCZ8SfOufitgcX+CS++xV X-Received: by 2002:a05:600c:1992:b0:493:f261:d295 with SMTP id 5b1f17b1804b1-493f87d9886mr86244245e9.4.1783942795022; Mon, 13 Jul 2026 04:39:55 -0700 (PDT) Received: from localhost ([2a02:8071:6401:180:d892:bf43:a0b4:83b]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-493eb6d5055sm355712995e9.5.2026.07.13.04.39.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Jul 2026 04:39:54 -0700 (PDT) Date: Mon, 13 Jul 2026 07:39:53 -0400 From: Johannes Weiner To: Guopeng Zhang Cc: Andrew Morton , Roman Gushchin , Shakeel Butt , Stanislav Fort , 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 Message-ID: <20260713113953.GH276793@cmpxchg.org> References: <20260713085520.2953121-1-guopeng.zhang@linux.dev> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260713085520.2953121-1-guopeng.zhang@linux.dev> On Mon, Jul 13, 2026 at 04:55:20PM +0800, Guopeng Zhang wrote: > 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 I guess :) Acked-by: Johannes Weiner