From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759618Ab3BMOth (ORCPT ); Wed, 13 Feb 2013 09:49:37 -0500 Received: from mail-ee0-f46.google.com ([74.125.83.46]:48680 "EHLO mail-ee0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754957Ab3BMOtg (ORCPT ); Wed, 13 Feb 2013 09:49:36 -0500 Date: Wed, 13 Feb 2013 15:49:32 +0100 From: Ingo Molnar To: Alex Shi Cc: Michel Lespinasse , linux-kernel@vger.kernel.org, anton@samba.org, hpa@zytor.com, arjan@linux.intel.com, a.p.zijlstra@chello.nl, torvalds@linux-foundation.org, yuanhan.liu@linux.intel.com, dhowells@redhat.com, akpm@linux-foundation.org, tglx@linutronix.de Subject: Re: [PATCH 0/4] rwsem: Implement writer lock-stealing Message-ID: <20130213144932.GA14260@gmail.com> References: <1360377937-16297-1-git-send-email-walken@google.com> <511B9B4F.3060404@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <511B9B4F.3060404@intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Alex Shi wrote: > On 02/09/2013 10:45 AM, Michel Lespinasse wrote: > > This proposal implements writer lock stealing in lib/rwsem.c, just as > > Alex Shi's earlier proposal did for the simpler lib/rwsem-spinlock.c > > Ops, my patch in tip/urgent is for rwsem. Yuanhan's patch is > for rwsem-spinlock. Your rwsem patch is queued up for v3.9, in the tip:core/locking tree: 3a15e0e0cdda rwsem: Implement writer lock-stealing for better scalability Michel, mind having a look at that and possibly generate a delta patch, if your patch has changes we should apply? Thanks, Ingo