From patchwork Tue Dec 27 15:55:50 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ming Lei X-Patchwork-Id: 9489619 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 B0D44601D2 for ; Tue, 27 Dec 2016 16:14:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A0EED201BC for ; Tue, 27 Dec 2016 16:14:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9597125D99; Tue, 27 Dec 2016 16:14:17 +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=-6.3 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM, T_DKIM_INVALID autolearn=ham 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 47305201BC for ; Tue, 27 Dec 2016 16:14:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932654AbcL0QFw (ORCPT ); Tue, 27 Dec 2016 11:05:52 -0500 Received: from mail-pg0-f66.google.com ([74.125.83.66]:35620 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932461AbcL0QFr (ORCPT ); Tue, 27 Dec 2016 11:05:47 -0500 Received: by mail-pg0-f66.google.com with SMTP id i5so12801397pgh.2; Tue, 27 Dec 2016 08:05:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=KJ0Bw+7B7HZQj1QIQgX8oaBMvTrKgqWgO/QWFnma8M8=; b=b3DYa1LI2h2s4Q02Bwx7zfqn7xZqwa2+AAM1lK1hvcS70ODfQzpkHYqwY2MlzokPsr RPFWB79qjIguYpcO4AaHVxzJQJcdT+MPSK/TgmcMs141d0apKQQcgtKQeA4iXUll9wty FJE9qur161A9mWwU19N6IMcHH7JNa33nZzqmI3lDhT5tsU9oWIxLy/9RA+jHuiuhsZq6 jJXziNY+Gm4tGW+54syYZJ2ZeEtzn6OgHiQ7FLumlUZl5K+Ek2VBXHdStY3QItmSew7Q ciXm/gNLB1plnhKBMtqcgCq8qqt2sjayz6aewCy4LoRdR17FF9bv4IrtKTDZGC2pUl9v ATkA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=KJ0Bw+7B7HZQj1QIQgX8oaBMvTrKgqWgO/QWFnma8M8=; b=TCqsMjO4bQV56jyempckB0F1UU9QSUAktiohQtsK5UZlfluqOrtyvW9sOibIcs4qTf WqiOhgHxhwxrUNDCvmy5mQKSCx2WngucTZqX4Ch+rt9/05dl2Z9w2uUmFO8JxeaNUG3r PHnZjcLc0omB40yx37dYD5XZs0qMoyfhlbPJ6TTUSUI+z2rgtKsPNn2/uANl0tB5Sc96 qGiGws1oYfj86ImL5a+NkwRbRmZcJ21kkWniboiEgURDQQhRuYsA/N84MmiI0RP1ehaj 4IcHetxrfz0CQV2il7FGtYBH0UJ3WMpTkFhQIVFg7684rnlcEYGD/1GcG+RfZyR38t9e cp8Q== X-Gm-Message-State: AIkVDXJGXrefz2JTTYUxq9NwVPmRRzAvJm1wyreOsrI2bQtRUAWt6CryvFKn/TYbZ/Drxg== X-Received: by 10.84.136.7 with SMTP id 7mr65033560plk.168.1482854312039; Tue, 27 Dec 2016 07:58:32 -0800 (PST) Received: from localhost ([45.35.47.137]) by smtp.gmail.com with ESMTPSA id 72sm90722039pfw.37.2016.12.27.07.58.30 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 27 Dec 2016 07:58:30 -0800 (PST) From: Ming Lei To: Jens Axboe , linux-kernel@vger.kernel.org Cc: linux-block@vger.kernel.org, Christoph Hellwig , Ming Lei , Philipp Reisner , Lars Ellenberg , drbd-dev@lists.linbit.com (open list:DRBD DRIVER) Subject: [PATCH v1 01/54] block: drbd: comment on direct access bvec table Date: Tue, 27 Dec 2016 23:55:50 +0800 Message-Id: <1482854250-13481-2-git-send-email-tom.leiming@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1482854250-13481-1-git-send-email-tom.leiming@gmail.com> References: <1482854250-13481-1-git-send-email-tom.leiming@gmail.com> 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 Signed-off-by: Ming Lei --- drivers/block/drbd/drbd_bitmap.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index ab62b81c2ca7..ce9506da30ad 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -953,6 +953,7 @@ static void drbd_bm_endio(struct bio *bio) struct drbd_bm_aio_ctx *ctx = bio->bi_private; struct drbd_device *device = ctx->device; struct drbd_bitmap *b = device->bitmap; + /* single page bio, safe for multipage bvec */ unsigned int idx = bm_page_to_idx(bio->bi_io_vec[0].bv_page); if ((ctx->flags & BM_AIO_COPY_PAGES) == 0 &&