From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751606AbdFIOuG (ORCPT ); Fri, 9 Jun 2017 10:50:06 -0400 Received: from foss.arm.com ([217.140.101.70]:42178 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751534AbdFIOta (ORCPT ); Fri, 9 Jun 2017 10:49:30 -0400 Date: Fri, 9 Jun 2017 15:49:38 +0100 From: Will Deacon To: Peter Zijlstra Cc: torvalds@linux-foundation.org, oleg@redhat.com, paulmck@linux.vnet.ibm.com, benh@kernel.crashing.org, mpe@ellerman.id.au, npiggin@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, stern@rowland.harvard.edu Subject: Re: [RFC][PATCH 0/5] Getting rid of smp_mb__before_spinlock Message-ID: <20170609144938.GP13955@arm.com> References: <20170607161501.819948352@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170607161501.819948352@infradead.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 07, 2017 at 06:15:01PM +0200, Peter Zijlstra wrote: > There was a thread on this somewhere about a year ago, I finally remembered to > finish this :-) > > This series removes two smp_mb__before_spinlock() (ab)users and converts the > scheduler to use smp_mb__after_spinlock(), which provides more guarantees with > the same amount of barriers. For the arm64 bits: Acked-by: Will Deacon Will