From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 27409D4A5F6 for ; Fri, 16 Jan 2026 03:28:22 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7B6F46B0005; Thu, 15 Jan 2026 22:28:21 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 75CFA6B0088; Thu, 15 Jan 2026 22:28:21 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 63EFE6B0089; Thu, 15 Jan 2026 22:28:21 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 532FD6B0005 for ; Thu, 15 Jan 2026 22:28:21 -0500 (EST) Received: from smtpin04.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id B44B214051F for ; Fri, 16 Jan 2026 03:28:20 +0000 (UTC) X-FDA: 84336393960.04.56CF7E7 Received: from out-179.mta1.migadu.com (out-179.mta1.migadu.com [95.215.58.179]) by imf21.hostedemail.com (Postfix) with ESMTP id E94381C0007 for ; Fri, 16 Jan 2026 03:28:18 +0000 (UTC) Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=kawZwRZ0; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf21.hostedemail.com: domain of qi.zheng@linux.dev designates 95.215.58.179 as permitted sender) smtp.mailfrom=qi.zheng@linux.dev ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1768534099; a=rsa-sha256; cv=none; b=BTJntTJXW9p8uiuJib4L874UsWI+len6i34VZ6Ojo2/nQ9jF09DBQgQrCd2sWWtXX6U2+B /9t64LDu4x/X/+QlWmzZnJvcUticvxcRRhjYu4nGAna6cOsIsEkDzgSrANmyLoFnVhbZ3L 9Gft0gACZ344JATqnx0XxhEOJ38iCHk= ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=kawZwRZ0; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf21.hostedemail.com: domain of qi.zheng@linux.dev designates 95.215.58.179 as permitted sender) smtp.mailfrom=qi.zheng@linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1768534099; h=from:from:sender: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:dkim-signature; bh=5DzqnhNxvLI0laCKLwCbDwSiE4A2VzYWibr9B0HZ9UY=; b=dbl2Po+xEnwYkdfJBPgR70G5LWE7wmkGcDDSJeqUjuTDf/XszcIVyDMor1bnwTGfRuiKfa pUrP/QFgsltXjz+ZdnPR0TpInVpBbVHBjknq8oV2GHPGzi1K0LLOUgZiCVa2+Qvkr7o6K8 N1DQM1iR9W1e3QB7ZCb7vWfks73VQtA= Message-ID: <19a35b15-b7ce-40fc-8f6e-ed84cff84a17@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1768534096; 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=5DzqnhNxvLI0laCKLwCbDwSiE4A2VzYWibr9B0HZ9UY=; b=kawZwRZ0yr6J0LNYij00kshaTdb5nuUx2T60E4pjQvKILtWpaKJycNZR71fhyREdb2Xrnw +gzfIZeJs9TXKrTUoxf5Y9o6O7rQD1+i0WNl7mXlwmpPfVKn1+64txNPh4r6WZLMfOUWQy 29o/khTKalijqtl9LKWABLc9TQ6Oa9U= Date: Fri, 16 Jan 2026 11:27:46 +0800 MIME-Version: 1.0 Subject: Re: [PATCH v3 28/30 fix 1/2] mm: memcontrol: fix lruvec_stats->state_local reparenting To: Andrew Morton Cc: hannes@cmpxchg.org, hughd@google.com, mhocko@suse.com, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, david@kernel.org, lorenzo.stoakes@oracle.com, ziy@nvidia.com, harry.yoo@oracle.com, yosry.ahmed@linux.dev, imran.f.khan@oracle.com, kamalesh.babulal@oracle.com, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, chenridong@huaweicloud.com, mkoutny@suse.com, hamzamahfooz@linux.microsoft.com, apais@linux.microsoft.com, lance.yang@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, Qi Zheng References: <20260115094704.17d35583bbcff28677b5bc12@linux-foundation.org> X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Qi Zheng In-Reply-To: <20260115094704.17d35583bbcff28677b5bc12@linux-foundation.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Stat-Signature: edyzc7k93otzo9kej8rgutmz84gh6bqi X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: E94381C0007 X-HE-Tag: 1768534098-889577 X-HE-Meta: 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 TXdI5gpF l8XWqHPEm7WdLCankcG0vsnFVwaLZYhC4VKN1eA4znLUU6f2DpUVSNAeli52gt3kv0ZscWix54QtYsWze6sDncyLDSqh/WyEG2dZUFAOU3HiXccYdM5ySoSxobcA4QMcEUjeNsNVGalLbg4h11fylg3dFvIOnB7iGX/GvN7NzWDFwegHQgdggLxcX+fTaKK665feJuho3uEjbnn7AVM29sXOHLcGB0GduCEBwoIVEJpB9aAF3gDvl0vAQZIFi3cFv4WB1vY6QYybJaCPZPOulDWN/HX40dmNHMzo7liXC1ndLfktDKWcE2QkjkGfsIqlsTOUbek5ChqAzazc= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 1/16/26 1:47 AM, Andrew Morton wrote: > On Thu, 15 Jan 2026 18:41:38 +0800 Qi Zheng wrote: > >> From: Qi Zheng >> >> Signed-off-by: Qi Zheng > > What was "fixed"? [1/2] fixed the issue reported by https://lore.kernel.org/all/6967cd38.050a0220.58bed.0001.GAE@google.com/. Previuosly, state_local was protected by ss_rstat_lock. Since [PATCH v3 28/30] added a concurrent path, [2/2] changed state_local to the atomic_long_t type for protection. > > I queued this and [2/2] as squashable fixes against "mm: memcontrol: > prepare for reparenting state_local". Thanks! >