From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754913AbcESNKs (ORCPT ); Thu, 19 May 2016 09:10:48 -0400 Received: from smtprelay0237.hostedemail.com ([216.40.44.237]:52270 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754470AbcESNKq (ORCPT ); Thu, 19 May 2016 09:10:46 -0400 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Spam-Summary: 2,0,0,,d41d8cd98f00b204,rostedt@goodmis.org,:::::,RULES_HIT:41:355:379:541:599:800:960:973:982:988:989:1260:1277:1311:1313:1314:1345:1359:1437:1515:1516:1518:1534:1541:1593:1594:1711:1730:1747:1777:1792:2393:2551:2553:2559:2562:2904:3138:3139:3140:3141:3142:3352:3622:3865:3866:3867:3868:3870:3871:3872:3873:5007:6261:7576:7875:7904:8784:8957:9545:10004:10400:10471:10848:10967:11232:11658:11914:12043:12050:12296:12517:12519:12679:12740:13069:13095:13255:13311:13357:13436:13439:14180:14181:14659:14721:21060:21080:21433,0,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,LFtime:8,LUA_SUMMARY:none X-HE-Tag: screw68_3fbddf3d72c22 X-Filterd-Recvd-Size: 2296 Date: Thu, 19 May 2016 09:10:36 -0400 From: Steven Rostedt To: "N, Soumya P" Cc: "mingo@redhat.com" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] ftrace: As disabling interrupts is costly and write_lock variant of tasklist_lock is not held from interrupt context it is not necessary to disable interrupts. Message-ID: <20160519091036.44e14667@gandalf.local.home> In-Reply-To: References: <1463500874-77480-1-git-send-email-soumya.p.n@hpe.com> <20160518155433.1631bb23@gandalf.local.home> X-Mailer: Claws Mail 3.13.2 (GTK+ 2.24.30; 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 Thu, 19 May 2016 08:53:17 +0000 "N, Soumya P" wrote: > Hi Steve, > > Could you please explain what this error means? > Is it related to length of subject? > I have run checkpatch.pl on patch and didn't show any error. > > Thanks, > Soumya. > > -----Original Message----- > From: Steven Rostedt [mailto:rostedt@goodmis.org] > Sent: Thursday, May 19, 2016 1:25 AM > To: N, Soumya P > Cc: mingo@redhat.com; linux-kernel@vger.kernel.org > Subject: Re: [PATCH] ftrace: As disabling interrupts is costly and write_lock variant of tasklist_lock is not held from interrupt context it is not necessary to disable interrupts. > > > -ERUNONSUBJECT A subject (and this includes normal net etiquette as well) should be a short description of what the email (or patch) is about, preferably under 80 characters. What you supplied is an abstract. it should have been something as simple as: ftrace: Don't disable interrupts when taking read_lock() for graph tracer And don't rely on checkpatch.pl. Read Documentation/SubmittingPatches in the kernel proper. -- Steve