From patchwork Mon Jun 26 12:09:46 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ming Lei X-Patchwork-Id: 9809179 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3BC7E603F3 for ; Mon, 26 Jun 2017 12:12:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 430B22857B for ; Mon, 26 Jun 2017 12:12:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 37E1728583; Mon, 26 Jun 2017 12:12:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D6D1B28582 for ; Mon, 26 Jun 2017 12:12:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751989AbdFZMMe (ORCPT ); Mon, 26 Jun 2017 08:12:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:57106 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751491AbdFZMMc (ORCPT ); Mon, 26 Jun 2017 08:12:32 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6ACD8B9AB4; Mon, 26 Jun 2017 12:12:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 6ACD8B9AB4 Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=ming.lei@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 6ACD8B9AB4 Received: from localhost (ovpn-12-86.pek2.redhat.com [10.72.12.86]) by smtp.corp.redhat.com (Postfix) with ESMTP id B87635F90D; Mon, 26 Jun 2017 12:11:56 +0000 (UTC) From: Ming Lei To: Jens Axboe , Christoph Hellwig , Huang Ying , Andrew Morton , Alexander Viro Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, Ming Lei , "Rafael J. Wysocki" , linux-pm@vger.kernel.org Subject: [PATCH v2 03/51] kernel/power/swap.c: comment on direct access to bvec table Date: Mon, 26 Jun 2017 20:09:46 +0800 Message-Id: <20170626121034.3051-4-ming.lei@redhat.com> In-Reply-To: <20170626121034.3051-1-ming.lei@redhat.com> References: <20170626121034.3051-1-ming.lei@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Mon, 26 Jun 2017 12:12:27 +0000 (UTC) Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Cc: "Rafael J. Wysocki" Cc: linux-pm@vger.kernel.org Signed-off-by: Ming Lei --- kernel/power/swap.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 57d22571f306..aa52ccc03fcc 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -238,6 +238,8 @@ static void hib_init_batch(struct hib_bio_batch *hb) static void hib_end_io(struct bio *bio) { struct hib_bio_batch *hb = bio->bi_private; + + /* single page bio, safe for multipage bvec */ struct page *page = bio->bi_io_vec[0].bv_page; if (bio->bi_status) {