From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752730AbbCWN66 (ORCPT ); Mon, 23 Mar 2015 09:58:58 -0400 Received: from smtprelay0038.hostedemail.com ([216.40.44.38]:44587 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752257AbbCWN65 (ORCPT ); Mon, 23 Mar 2015 09:58:57 -0400 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Spam-Summary: 2,0,0,,d41d8cd98f00b204,rostedt@goodmis.org,:::::::::::::::::::::,RULES_HIT:41:355:379:541:599:800:960:973:982:988:989:1260:1277:1311:1313:1314:1345:1359:1437:1515:1516:1518:1534:1539:1593:1594:1711:1730:1747:1777:1792:2393:2553:2559:2562:3138:3139:3140:3141:3142:3352:3622:3865:3866:3867:3868:3870:3871:3872:3874:4250:5007:6261:7875:7903:7974:10004:10400:10848:10967:11232:11658:11914:12517:12519:12740:13069:13311:13357:13868:21080,0,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: leg35_13a050c17ff24 X-Filterd-Recvd-Size: 2148 Date: Mon, 23 Mar 2015 09:58:53 -0400 From: Steven Rostedt To: Ingo Molnar Cc: Petr Mladek , Masami Hiramatsu , "David S. Miller" , Anil S Keshavamurthy , Ananth NMavinakayanahalli , Frederic Weisbecker , Ingo Molnar , Jiri Kosina , linux-kernel@vger.kernel.org, "Paul E. McKenney" Subject: Re: [PATCH v3] kprobes: Disable Kprobe when ftrace arming fails Message-ID: <20150323095853.56eae095@gandalf.local.home> In-Reply-To: <20150323135306.GA25233@gmail.com> References: <1426860127-7896-1-git-send-email-pmladek@suse.cz> <20150323085426.GB28965@gmail.com> <20150323101253.GN11869@pathway.suse.cz> <20150323103327.GA12213@gmail.com> <20150323123955.GE15177@pathway.suse.cz> <20150323093013.15b6070b@gandalf.local.home> <20150323133442.GC23145@gmail.com> <20150323094317.38dcb601@gandalf.local.home> <20150323135306.GA25233@gmail.com> 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 On Mon, 23 Mar 2015 14:53:06 +0100 Ingo Molnar wrote: > > I think it has to do with their RCU like patching functionality, > > where some tasks are still executing the old function and others are > > executing the new function. [...] > > That would be the 'function with pending patch' state in my > description above. That could be considered a bit confusing too, because the patch isn't pending, it's already applied. But this is getting off topic, as the code for this isn't even in mainline yet, so I agree that the use of terminology that has not been upstreamed yet should be avoided. -- Steve