From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1756077AbbAaVSJ (ORCPT <rfc822;w@1wt.eu>);
	Sat, 31 Jan 2015 16:18:09 -0500
Received: from smtp2.provo.novell.com ([137.65.250.81]:51256 "EHLO
	smtp2.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1753580AbbAaVSD (ORCPT
	<rfc822;groupwise-linux-kernel@vger.kernel.org:0:0>);
	Sat, 31 Jan 2015 16:18:03 -0500
Message-ID: <1422739076.28351.5.camel@stgolabs.net>
Subject: Re: [PATCH 4/5] locking/rwsem: Avoid deceiving lock spinners
From: Davidlohr Bueso <dave@stgolabs.net>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Jason Low <jason.low2@hp.com>, Michel Lespinasse <walken@google.com>,
        Tim Chen <tim.c.chen@linux.intel.com>, linux-kernel@vger.kernel.org
Date: Sat, 31 Jan 2015 13:17:56 -0800
In-Reply-To: <1422738891.28351.4.camel@stgolabs.net>
References: <1422609267-15102-1-git-send-email-dave@stgolabs.net>
	 <1422609267-15102-5-git-send-email-dave@stgolabs.net>
	 <20150131092921.GB32343@twins.programming.kicks-ass.net>
	 <1422738891.28351.4.camel@stgolabs.net>
Content-Type: text/plain; charset="UTF-8"
X-Mailer: Evolution 3.12.7 
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Sat, 2015-01-31 at 13:14 -0800, Davidlohr Bueso wrote:
> - owner changes from nil: implies that a writer now holds the mutex. Why

Err... that should say rwsem.