From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752702AbbHaGyK (ORCPT ); Mon, 31 Aug 2015 02:54:10 -0400 Received: from ozlabs.org ([103.22.144.67]:50694 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752122AbbHaGyH (ORCPT ); Mon, 31 Aug 2015 02:54:07 -0400 Message-ID: <1441004045.5735.8.camel@ellerman.id.au> Subject: Re: [RFC PATCH 1/9] powerpc: allocate sys_membarrier system call number From: Michael Ellerman To: Mathieu Desnoyers Cc: Andrew Morton , linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, Benjamin Herrenschmidt , Paul Mackerras , linuxppc-dev@lists.ozlabs.org Date: Mon, 31 Aug 2015 16:54:05 +1000 In-Reply-To: <1440698215-8355-2-git-send-email-mathieu.desnoyers@efficios.com> References: <1440698215-8355-1-git-send-email-mathieu.desnoyers@efficios.com> <1440698215-8355-2-git-send-email-mathieu.desnoyers@efficios.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.11-0ubuntu3 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2015-08-27 at 13:56 -0400, Mathieu Desnoyers wrote: > Allow it to be used from SPU, since it should not have unwanted > side-effects. > > [ Untested on this architecture. To try it out: fetch linux-next/akpm, > apply this patch, build/run a membarrier-enabled kernel, and do make > kselftest. ] > > Signed-off-by: Mathieu Desnoyers > CC: Andrew Morton > CC: linux-api@vger.kernel.org > CC: Benjamin Herrenschmidt > CC: Paul Mackerras > CC: Michael Ellerman > CC: linuxppc-dev@lists.ozlabs.org Thanks. I get: $ ./membarrier_test membarrier MEMBARRIER_CMD_QUERY syscall available. membarrier: MEMBARRIER_CMD_SHARED success. membarrier: tests done! Which looks good. Assuming the membarrier support hits 4.3, I'll take this via my tree for 4.3 also. cheers