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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A49BC7619A for ; Thu, 13 Apr 2023 01:56:05 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id EB2FB6B0072; Wed, 12 Apr 2023 21:56:04 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id E63046B0074; Wed, 12 Apr 2023 21:56:04 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D51D66B0075; Wed, 12 Apr 2023 21:56:04 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id C5D4E6B0072 for ; Wed, 12 Apr 2023 21:56:04 -0400 (EDT) Received: from smtpin02.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 9AA611A02FC for ; Thu, 13 Apr 2023 01:56:04 +0000 (UTC) X-FDA: 80674702248.02.849444C Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf07.hostedemail.com (Postfix) with ESMTP id E08B740005 for ; Thu, 13 Apr 2023 01:56:02 +0000 (UTC) Authentication-Results: imf07.hostedemail.com; dkim=none; spf=pass (imf07.hostedemail.com: domain of "SRS0=lbTS=AE=goodmis.org=rostedt@kernel.org" designates 139.178.84.217 as permitted sender) smtp.mailfrom="SRS0=lbTS=AE=goodmis.org=rostedt@kernel.org"; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1681350963; 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; bh=jsq3/UaFAgVnPUQj+EakM01YxEmdNXac+8YRUzjIxKA=; b=rYZcz2x8TYnFCb4N3iL9esP0C2XNV6KrhGHXxkqtCmXFACCbaRuGDhFJzqkuB96UdD5J09 fb9taV6MjniCM7NIIleUEkdl3zjlAuO9z0sw1DbL8LoA/FzEHZLiW1gylcTL+ptlFessho TcRSeHxqghnr6kJHr4M9U+iJPfJoLRM= ARC-Authentication-Results: i=1; imf07.hostedemail.com; dkim=none; spf=pass (imf07.hostedemail.com: domain of "SRS0=lbTS=AE=goodmis.org=rostedt@kernel.org" designates 139.178.84.217 as permitted sender) smtp.mailfrom="SRS0=lbTS=AE=goodmis.org=rostedt@kernel.org"; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1681350963; a=rsa-sha256; cv=none; b=2fKFO+nUurIqwDSXDIA+6f0pgy23fGWxIvt5ItqU2T1ejPWhPTtjXOiJ11Aekf1DMm94lq t43yDtcx/GLfyBn+RPVRJZMB1PxfNrfOwZH2OA9vm5TVGgdHExOxrDRm/jmBTbXJnkYPjm JzG2IQelOiIP/e/8sVO+VmWERbtOBV8= Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id BF36960C41; Thu, 13 Apr 2023 01:56:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 33D14C433EF; Thu, 13 Apr 2023 01:55:59 +0000 (UTC) Date: Wed, 12 Apr 2023 21:55:57 -0400 From: Steven Rostedt To: Joel Fernandes Cc: Qi Zheng , "Zhang, Qiang1" , Boqun Feng , Vlastimil Babka , "42.hyeyoo@gmail.com" <42.hyeyoo@gmail.com>, "akpm@linux-foundation.org" , "roman.gushchin@linux.dev" , "iamjoonsoo.kim@lge.com" , "rientjes@google.com" , "penberg@kernel.org" , "cl@linux.com" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Zhao Gongyi , Sebastian Andrzej Siewior , Thomas Gleixner , RCU , "Paul E . McKenney" Subject: Re: [PATCH] mm: slub: annotate kmem_cache_node->list_lock as raw_spinlock Message-ID: <20230412215557.05df918e@gandalf.local.home> In-Reply-To: References: <20230411130854.46795-1-zhengqi.arch@bytedance.com> <932bf921-a076-e166-4f95-1adb24d544cf@bytedance.com> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam03 X-Stat-Signature: h5f4ikgpkhd4ke58yqgo5khgre87g17n X-Rspamd-Queue-Id: E08B740005 X-HE-Tag: 1681350962-420416 X-HE-Meta: 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 hvXvdLTn 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 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: On Wed, 12 Apr 2023 20:24:19 -0400 Joel Fernandes wrote: > I think it would be better to fix PROVE_LOCKING / CONFIG_PREEMPT_RT > instead of degrading !CONFIG_PREEMPT_RT just to satisfy a > false-positive report. I think getting Peter's patch working: https://lore.kernel.org/all/20230412124735.GE628377@hirez.programming.kicks-ass.net/ is the real solution. -- Steve