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 X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 24976C433E0 for ; Wed, 24 Jun 2020 13:03:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E952220786 for ; Wed, 24 Jun 2020 13:03:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593003828; bh=0qG4FzuUMsbomqk+xttMakSicquRd3Y77xHixAAXZFE=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:List-ID: From; b=UILeZ3HEstoxCtBfJ0DFmqwscRlIfRXSXkI8dBykkSI3bcOeaFz4Rfq9iK9+kiQPq cqhLv+wER2j+8AO3SOtMRwB0EOog8XBjAYo3OVHH4VM+4w4JDq8kHdLSwu004LC9k/ GLoenp/+gp174XGhcRhPLARaGuGcCWUHvhNWkq+8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403898AbgFXNDn (ORCPT ); Wed, 24 Jun 2020 09:03:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:46070 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390586AbgFXNDj (ORCPT ); Wed, 24 Jun 2020 09:03:39 -0400 Received: from paulmck-ThinkPad-P72.home (50-39-105-78.bvtn.or.frontiernet.net [50.39.105.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C23C22082F; Wed, 24 Jun 2020 13:03:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593003818; bh=0qG4FzuUMsbomqk+xttMakSicquRd3Y77xHixAAXZFE=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=eUtzm10VWIy9qeD2lgs6qftL20dV65oXtRI7OgMkTiaTnbgNxGwMXYwBk1Xfyx4sE WMBEbkfDn8OJnJ5mvptg4MKEeRmkBw2SxkUQAqfH7wx/I91cGm1Oqy3pfv5qcqkCk2 ceXHzvWEywom7NT6HJh4gBQxY0vAESvzYNHgcn/I= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id AA3743523267; Wed, 24 Jun 2020 06:03:38 -0700 (PDT) Date: Wed, 24 Jun 2020 06:03:38 -0700 From: "Paul E. McKenney" To: Peter Zijlstra Cc: tglx@linutronix.de, x86@kernel.org, elver@google.com, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, will@kernel.org, dvyukov@google.com, glider@google.com, andreyknvl@google.com Subject: Re: [PATCH 2/9] rcu: Fixup noinstr warnings Message-ID: <20200624130338.GF9247@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org References: <20200603114014.152292216@infradead.org> <20200603114051.896465666@infradead.org> <20200615154905.GZ2531@hirez.programming.kicks-ass.net> <20200615155513.GG2554@hirez.programming.kicks-ass.net> <20200615162427.GI2554@hirez.programming.kicks-ass.net> <20200615171404.GI2723@paulmck-ThinkPad-P72> <20200619221555.GA12280@paulmck-ThinkPad-P72> <20200623204646.GF2483@worktop.programming.kicks-ass.net> <20200623214433.GX9247@paulmck-ThinkPad-P72> <20200624075249.GC4800@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200624075249.GC4800@hirez.programming.kicks-ass.net> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 24, 2020 at 09:52:49AM +0200, Peter Zijlstra wrote: > On Tue, Jun 23, 2020 at 02:44:33PM -0700, Paul E. McKenney wrote: > > On Tue, Jun 23, 2020 at 10:46:46PM +0200, Peter Zijlstra wrote: > > > On Fri, Jun 19, 2020 at 03:15:55PM -0700, Paul E. McKenney wrote: > > > > > > > Just following up because I don't see this anywhere. If I am supposed > > > > to take this (which is more plausible now that v5.8-rc1 is out), please > > > > let me know. > > > > > > Sorry, I got distracted by that NULL ptr thing, but that seems sorted > > > now. If you don't mind taking it through your rcu/urgent tree for -rc3 > > > or so that would be awesome. > > > > Will do! > > > > Just to double-check, this is the patch from you with Message-ID > > 20200603114051.896465666@infradead.org, correct? > > > > Or, if you prefer, this commit now on -rcu? > > > > 5fe289eccfe5 ("rcu: Fixup noinstr warnings") > > > > If this is the correct commit, I will rebase it on top of v5.8-rc2, > > and if it passes tests, send it along via rcu/urgent. > > Ah, I was thinking about: > > https://lore.kernel.org/lkml/20200615162427.GI2554@hirez.programming.kicks-ass.net/ > > seeing how I added that instrumentation you wanted :-), but either > version should work for now. KCSAN is sad without this. Glad I asked! I will substitute the one you pointed out above. Thanx, Paul