Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933997AbbENUiH (ORCPT ); Thu, 14 May 2015 16:38:07 -0400 Received: from smtprelay0213.hostedemail.com ([216.40.44.213]:53920 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932953AbbENUiF (ORCPT ); Thu, 14 May 2015 16:38:05 -0400 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Spam-Summary: 2,0,0,,d41d8cd98f00b204,rostedt@goodmis.org,:::::::::::::::::::::,RULES_HIT:41:355:379:541:599:800:960:973:988:989:1260:1277:1311:1313:1314:1345:1359:1431:1437:1515:1516:1518:1534:1537:1561:1593:1594:1711:1714:1730:1747:1777:1792:2393:2553:2559:2562:2909:3138:3139:3140:3141:3142:3622:3865:3867:3868:3874:5007:6261:7875:10004:10400:10848:10967:11026:11232:11658:11914:12114:12438:12517:12519:12740:13069:13255:13311:13357:21080,0,RBL:none,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fn,MSBL:0,DNSBL:none,Custom_rules:0:0:0 X-HE-Tag: lamp62_808c975504a44 X-Filterd-Recvd-Size: 1763 Date: Thu, 14 May 2015 16:38:02 -0400 From: Steven Rostedt To: Andrew Morton Cc: Shreyas B Prabhu , linux-kernel@vger.kernel.org, mingo@redhat.com, aneesh.kumar@linux.vnet.ibm.com, paulmck@linux.vnet.ibm.com, preeti@linux.vnet.ibm.com, mgorman@suse.de, namhyung@kernel.org, lizf@cn.fujitsu.com, acme@redhat.com Subject: Re: [PATCH RESEND 0/3] tracing/mm: Fix suspicious rcu_dereference_check() usage warnings Message-ID: <20150514163802.5806d843@gandalf.local.home> In-Reply-To: <20150514130823.4502e151e0e31321a114edcd@linux-foundation.org> References: <1431105646-26558-1-git-send-email-shreyas@linux.vnet.ibm.com> <5551ABD6.9050007@linux.vnet.ibm.com> <20150512160351.4b5d5606@gandalf.local.home> <20150512133601.2f619efe74d08ed9281667d1@linux-foundation.org> <20150512165446.6daf5a4a@gandalf.local.home> <5553017A.2080905@linux.vnet.ibm.com> <20150514130823.4502e151e0e31321a114edcd@linux-foundation.org> X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.25; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 593 Lines: 17 On Thu, 14 May 2015 13:08:23 -0700 Andrew Morton wrote: > > Please also confirm that these tracepoints cannot be called > from preemptible contexts. Or switch to raw_smp_processor_id(). I checked. They can be called from preemptible context, and suggested that the next patch uses raw_smp_processor_id(). -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/