From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Paul E. McKenney" Subject: Re: [PATCH RFC tip/core/rcu 05/15] percpu: READ_ONCE() now implies smp_read_barrier_depends() Date: Tue, 10 Oct 2017 08:30:47 -0700 Message-ID: <20171010153047.GB3521@linux.vnet.ibm.com> References: <20171010001951.GA6476@linux.vnet.ibm.com> <1507594969-8347-5-git-send-email-paulmck@linux.vnet.ibm.com> <20171010140813.GK3301751@devbig577.frc2.facebook.com> Reply-To: paulmck@linux.vnet.ibm.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20171010140813.GK3301751@devbig577.frc2.facebook.com> Sender: linux-kernel-owner@vger.kernel.org To: Tejun Heo Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, torvalds@linux-foundation.org, mark.rutland@arm.com, dhowells@redhat.com, linux-arch@vger.kernel.org, peterz@infradead.org, will.deacon@arm.com, Christoph Lameter List-Id: linux-arch.vger.kernel.org On Tue, Oct 10, 2017 at 07:08:13AM -0700, Tejun Heo wrote: > On Mon, Oct 09, 2017 at 05:22:39PM -0700, Paul E. McKenney wrote: > > Because READ_ONCE() now implies smp_read_barrier_depends(), this commit > > removes the now-redundant smp_read_barrier_depends() following the > > READ_ONCE() in __ref_is_percpu(). > > > > Signed-off-by: Paul E. McKenney > > Cc: Tejun Heo > > Cc: Christoph Lameter > > Acked-by: Tejun Heo Thank you, applied! > Please feel free to route with other patches. If this should be > routed through the percpu tree, please let me know. This depends on some other not-yet-finalized patch series, so if you are OK with it, I will route them with that group of serieses. Thanx, Paul From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:39118 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932294AbdJJPax (ORCPT ); Tue, 10 Oct 2017 11:30:53 -0400 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v9AFSDi1098175 for ; Tue, 10 Oct 2017 11:30:52 -0400 Received: from e16.ny.us.ibm.com (e16.ny.us.ibm.com [129.33.205.206]) by mx0b-001b2d01.pphosted.com with ESMTP id 2dh0dr1ffj-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 10 Oct 2017 11:30:52 -0400 Received: from localhost by e16.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 10 Oct 2017 11:30:52 -0400 Date: Tue, 10 Oct 2017 08:30:47 -0700 From: "Paul E. McKenney" Subject: Re: [PATCH RFC tip/core/rcu 05/15] percpu: READ_ONCE() now implies smp_read_barrier_depends() Reply-To: paulmck@linux.vnet.ibm.com References: <20171010001951.GA6476@linux.vnet.ibm.com> <1507594969-8347-5-git-send-email-paulmck@linux.vnet.ibm.com> <20171010140813.GK3301751@devbig577.frc2.facebook.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20171010140813.GK3301751@devbig577.frc2.facebook.com> Message-ID: <20171010153047.GB3521@linux.vnet.ibm.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Tejun Heo Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, torvalds@linux-foundation.org, mark.rutland@arm.com, dhowells@redhat.com, linux-arch@vger.kernel.org, peterz@infradead.org, will.deacon@arm.com, Christoph Lameter Message-ID: <20171010153047.nH95yGFu50kSB-pWKsXaoiu9S5G_XgTT2AfjQ0lSzNw@z> On Tue, Oct 10, 2017 at 07:08:13AM -0700, Tejun Heo wrote: > On Mon, Oct 09, 2017 at 05:22:39PM -0700, Paul E. McKenney wrote: > > Because READ_ONCE() now implies smp_read_barrier_depends(), this commit > > removes the now-redundant smp_read_barrier_depends() following the > > READ_ONCE() in __ref_is_percpu(). > > > > Signed-off-by: Paul E. McKenney > > Cc: Tejun Heo > > Cc: Christoph Lameter > > Acked-by: Tejun Heo Thank you, applied! > Please feel free to route with other patches. If this should be > routed through the percpu tree, please let me know. This depends on some other not-yet-finalized patch series, so if you are OK with it, I will route them with that group of serieses. Thanx, Paul