From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Tue, 12 Jan 2016 09:43:56 +0100 (CET) Received: from mx1.redhat.com ([209.132.183.28]:50058 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S27011152AbcALInyQc57A (ORCPT ); Tue, 12 Jan 2016 09:43:54 +0100 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id DBE8512048A; Tue, 12 Jan 2016 08:43:45 +0000 (UTC) Received: from redhat.com (vpn1-4-5.ams2.redhat.com [10.36.4.5]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with SMTP id u0C8haLA028039; Tue, 12 Jan 2016 03:43:37 -0500 Date: Tue, 12 Jan 2016 10:43:36 +0200 From: "Michael S. Tsirkin" To: Leonid Yegoshin Cc: linux-kernel@vger.kernel.org, Peter Zijlstra , Arnd Bergmann , linux-arch@vger.kernel.org, Andrew Cooper , Russell King - ARM Linux , virtualization@lists.linux-foundation.org, Stefano Stabellini , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Joe Perches , David Miller , linux-ia64@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-metag@vger.kernel.org, linux-mips@linux-mips.org, x86@kernel.org, user-mode-linux-devel@lists.sourceforge.net, adi-buildroot-devel@lists.sourceforge.net, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, xen-devel@lists.xenproject.org, Ralf Baechle , Ingo Molnar Subject: Re: [v3,11/41] mips: reuse asm-generic/barrier.h Message-ID: <20160112103913-mutt-send-email-mst@redhat.com> References: <1452426622-4471-12-git-send-email-mst@redhat.com> <56945366.2090504@imgtec.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56945366.2090504@imgtec.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 51068 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: mst@redhat.com Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On Mon, Jan 11, 2016 at 05:14:14PM -0800, Leonid Yegoshin wrote: > On 01/10/2016 06:18 AM, Michael S. Tsirkin wrote: > >On mips dma_rmb, dma_wmb, smp_store_mb, read_barrier_depends, > >smp_read_barrier_depends, smp_store_release and smp_load_acquire match > >the asm-generic variants exactly. Drop the local definitions and pull in > >asm-generic/barrier.h instead. > > > This statement doesn't fit MIPS barriers variations. Moreover, there is a > reason to extend that even more specific, at least for smp_store_release and > smp_load_acquire, look into > > http://patchwork.linux-mips.org/patch/10506/ > > - Leonid. Fine, but it matches what current code is doing. Since that MIPS_LIGHTWEIGHT_SYNC patch didn't go into linux-next yet, do you see a problem reworking it on top of this patchset? -- MST