From mboxrd@z Thu Jan 1 00:00:00 1970 From: Waiman Long Subject: Re: [RFC][PATCH 0/7] locking: qspinlock Date: Wed, 12 Mar 2014 15:00:48 -0400 Message-ID: <5320AEE0.7070600@hp.com> References: <20140310154236.038181843@infradead.org> <20140311104503.GA10916@gmail.com> <531FD1DA.5010006@hp.com> <20140312062436.GI30956@twins.programming.kicks-ass.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from g4t3425.houston.hp.com ([15.201.208.53]:30473 "EHLO g4t3425.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751389AbaCLTBM (ORCPT ); Wed, 12 Mar 2014 15:01:12 -0400 In-Reply-To: <20140312062436.GI30956@twins.programming.kicks-ass.net> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Peter Zijlstra Cc: Ingo Molnar , arnd@arndb.de, linux-arch@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, rostedt@goodmis.org, akpm@linux-foundation.org, walken@google.com, andi@firstfloor.org, riel@redhat.com, paulmck@linux.vnet.ibm.com, torvalds@linux-foundation.org, oleg@redhat.com On 03/12/2014 02:24 AM, Peter Zijlstra wrote: > On Tue, Mar 11, 2014 at 11:17:46PM -0400, Waiman Long wrote: >> Except that I do a single atomic short integer write to switch the bits >> instead of 2 byte write. > D'0h why didn't I think of that. A single short write is much better > than the 2 byte writes. > > In any case; can you try and keep the structure in this patch-set if you > post another version? It takes a lot of effort to unravel your > all-in-one patch. I didn't have time to fully review and test your changes yet. So I just post a new series of what I currently have right now. I will certainly do the testing on your patches. -Longman