Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755100AbZCYIDh (ORCPT ); Wed, 25 Mar 2009 04:03:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753426AbZCYIDR (ORCPT ); Wed, 25 Mar 2009 04:03:17 -0400 Received: from wf-out-1314.google.com ([209.85.200.171]:52219 "EHLO wf-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752242AbZCYIDP (ORCPT ); Wed, 25 Mar 2009 04:03:15 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:references:in-reply-to:subject:date:message-id :mime-version:content-type:content-transfer-encoding:x-mailer :thread-index:content-language; b=VulZQUxGbeQuLEwPvPqeG8omX0IRU0x5mx0sUa2dRQ4lz9LiTKlkCTIvWkKpWgcMT6 V4nk5rSL2hfBDPX1OMD3HMz/SU9/PXKt2myIs3CH9fJYNEurQconhkai5LP/Xx+foFQU /AgwKuJtJNRNVEwSAnkRmTvycGbjtPORt72mM= From: "Hua Zhong" To: "'Pekka Enberg'" , "'Steven Rostedt'" Cc: , "'Ingo Molnar'" , "'Andrew Morton'" , "'Thomas Gleixner'" , "'Peter Zijlstra'" , "'Roland McGrath'" , "'Nick Piggin'" , "'Steven Rostedt'" , "'Christoph Lameter'" , "'Matt Mackall'" References: <20090325051920.406564281@goodmis.org> <20090325052023.071564146@goodmis.org> <84144f020903250034j24e1782bt5f73809b9349346c@mail.gmail.com> In-Reply-To: <84144f020903250034j24e1782bt5f73809b9349346c@mail.gmail.com> Subject: RE: [PATCH 2/5] mm: remove unlikly NULL from kfree Date: Wed, 25 Mar 2009 01:02:54 -0700 Message-ID: <009101c9ad20$1ae231c0$50a69540$@com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: AcmtHCxCVLnLkePDQ9aupRJGqHXj7wAA7Cmg Content-Language: en-us Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 735 Lines: 22 > But those are _error handling paths_ (at least supposed to be). I > wonder which call-sites are responsible for this. Can frtrace help us > here? I am not sure why you call these error paths. I submitted the same patch two years ago, and you are still holding the same argument. http://www.archivum.info/linux.kernel/2006-04/msg06042.html Have you used likely profiler? These are real numbers. If you insist on calling them error paths then error paths are obviously the norm. Hua -- 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/