From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757656Ab2CZXn4 (ORCPT ); Mon, 26 Mar 2012 19:43:56 -0400 Received: from e38.co.us.ibm.com ([32.97.110.159]:52982 "EHLO e38.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755320Ab2CZXnz (ORCPT ); Mon, 26 Mar 2012 19:43:55 -0400 Date: Mon, 26 Mar 2012 16:43:40 -0700 From: "Paul E. McKenney" To: Steven Rostedt Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, eric.dumazet@gmail.com, darren@dvhart.com, fweisbec@gmail.com, patches@linaro.org, torvalds@linux-foundation.org Subject: Re: [PATCH RFC] rcu: Make __rcu_read_lock() inlinable Message-ID: <20120326234340.GL2450@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20120325205249.GA29528@linux.vnet.ibm.com> <1332748484.16159.61.camel@twins> <20120326183232.GK2450@linux.vnet.ibm.com> <1332788008.23924.114.camel@gandalf.stny.rr.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1332788008.23924.114.camel@gandalf.stny.rr.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12032623-5518-0000-0000-0000033A72F9 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 26, 2012 at 02:53:28PM -0400, Steven Rostedt wrote: > On Mon, 2012-03-26 at 11:32 -0700, Paul E. McKenney wrote: > > > Preemption is disabled at this point, correct? > > > Is this a philosophical question? You're asking if preemption is > disabled while a task is currently being preempted ;-) That was my first reaction as well, but never underestimate Peter's cleverness. ;-) Thanx, Paul