Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756910Ab2FPU5t (ORCPT ); Sat, 16 Jun 2012 16:57:49 -0400 Received: from e37.co.us.ibm.com ([32.97.110.158]:57419 "EHLO e37.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752039Ab2FPU5r (ORCPT ); Sat, 16 Jun 2012 16:57:47 -0400 Date: Sat, 16 Jun 2012 13:57:38 -0700 From: "Paul E. McKenney" To: Peter Zijlstra Cc: Yong Zhang , linux-kernel@vger.kernel.org, ralf@linux-mips.org, sshtylyov@mvista.com, david.daney@cavium.com, nikunj@linux.vnet.ibm.com, axboe@kernel.dk, mingo@kernel.org, tglx@linutronix.de, akpm@linux-foundation.org, srivatsa.bhat@linux.vnet.ibm.com, Benjamin Herrenschmidt , Paul Mackerras , linuxppc-dev@lists.ozlabs.org Subject: Re: [RFC PATCH 09/10] POWERPC: smp: remove call to ipi_call_lock()/ipi_call_unlock() Message-ID: <20120616205738.GM2420@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <1338275765-3217-1-git-send-email-yong.zhang0@gmail.com> <1338275765-3217-10-git-send-email-yong.zhang0@gmail.com> <20120616163219.GI2420@linux.vnet.ibm.com> <1339867858.15222.12.camel@twins> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1339867858.15222.12.camel@twins> User-Agent: Mutt/1.5.21 (2010-09-15) X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12061620-7408-0000-0000-000005EA1136 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 694 Lines: 17 On Sat, Jun 16, 2012 at 07:30:58PM +0200, Peter Zijlstra wrote: > On Sat, 2012-06-16 at 09:32 -0700, Paul E. McKenney wrote: > > However, there is an effort to get rid of stop_machine() from the > > CPU-down path... So something else will be needed. > > Elsewhere in this thread I mentioned we could do a synchronize_sched(). > I think that covers most of what stop-machine is doing these days. Ah, apologies for the noise! Thanx, Paul -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/