Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756073Ab2FPRbW (ORCPT ); Sat, 16 Jun 2012 13:31:22 -0400 Received: from casper.infradead.org ([85.118.1.10]:59654 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755551Ab2FPRbV convert rfc822-to-8bit (ORCPT ); Sat, 16 Jun 2012 13:31:21 -0400 Message-ID: <1339867858.15222.12.camel@twins> Subject: Re: [RFC PATCH 09/10] POWERPC: smp: remove call to ipi_call_lock()/ipi_call_unlock() From: Peter Zijlstra To: paulmck@linux.vnet.ibm.com 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 Date: Sat, 16 Jun 2012 19:30:58 +0200 In-Reply-To: <20120616163219.GI2420@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> Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Mailer: Evolution 3.2.2- Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 567 Lines: 11 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. -- 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/