From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753736AbcHWQTG (ORCPT ); Tue, 23 Aug 2016 12:19:06 -0400 Received: from mx2.suse.de ([195.135.220.15]:59582 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751774AbcHWQTD (ORCPT ); Tue, 23 Aug 2016 12:19:03 -0400 Date: Tue, 23 Aug 2016 09:17:50 -0700 From: Davidlohr Bueso To: Peter Zijlstra Cc: Linus Torvalds , Waiman Long , Jason Low , Ding Tianhong , Thomas Gleixner , Will Deacon , Ingo Molnar , Imre Deak , Linux Kernel Mailing List , Tim Chen , Terry Rudd , "Paul E. McKenney" , Jason Low Subject: Re: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex Message-ID: <20160823161750.GD31186@linux-80c1.suse> References: <20160823124617.015645861@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20160823124617.015645861@infradead.org> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org What's the motivation here? Is it just to unify counter and owner for the starvation issue? If so, is this really the path we wanna take for a small debug corner case? I have not looked at the patches yet, but are there any performance minutia to be aware of? > 46 files changed, 160 insertions(+), 1298 deletions(-) Oh my. Thanks, Davidlohr