From patchwork Thu Apr 20 10:04:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Thumshirn X-Patchwork-Id: 13218315 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 042F1C77B72 for ; Thu, 20 Apr 2023 10:06:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234552AbjDTKG3 (ORCPT ); Thu, 20 Apr 2023 06:06:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234479AbjDTKGC (ORCPT ); Thu, 20 Apr 2023 06:06:02 -0400 Received: from mail-wr1-f42.google.com (mail-wr1-f42.google.com [209.85.221.42]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A62B173C; Thu, 20 Apr 2023 03:05:54 -0700 (PDT) Received: by mail-wr1-f42.google.com with SMTP id ffacd0b85a97d-2f27a9c7970so432904f8f.2; Thu, 20 Apr 2023 03:05:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681985152; x=1684577152; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=orhZa1fQDVNg13Xf2hv14fXxJ7CL2ohR8GPEx9ozulE=; b=cXczmt6R27Rewa/7XekhNGHemr+wDvpV4ZBbIt+oJG0FQjsVBbfP6AGpQZw2O+D2B2 kwSFtXOrPDPYc2UzCSuxFe29wYZANwwW3wGu1HXHD4N3g8Mwu06/xTl9lfIzWRi0ewy/ 0JpJXrhJXKrt6HrhBbWEtIgClFGc0B4VtuB0bEPtQK2eFWlzTthdSnObOWyH/gKcB9/l E52KMQgAnAxfQHUyZ1Dx7TTFzfjICMibdUPCGVxXs2MZ3dawoXxaeyg99oroxRHAujOA gMtwuUddkNWy9Mil2kFTky7IeR4qeLCUvj56JEkTc/2uypkCsdLRjPTQHqAnM+31ONk0 MnyQ== X-Gm-Message-State: AAQBX9cZQz84mtN2v9dgkhAVYv2TakTqz8dKZG/7FK5uW3GihZ4EmdaS 3rbxWCvT3AOPvRyX2HsIqFI= X-Google-Smtp-Source: AKy350YNyeG2cTb3eTw6bH6AN4pc80O2KEoYo8kkUjtKZC1m+QcG1wLOsIVfaGc2U7URhzf/vvK0pQ== X-Received: by 2002:a5d:52d2:0:b0:2ef:a96:293c with SMTP id r18-20020a5d52d2000000b002ef0a96293cmr741768wrv.13.1681985152448; Thu, 20 Apr 2023 03:05:52 -0700 (PDT) Received: from localhost.localdomain (aftr-62-216-205-208.dynamic.mnet-online.de. [62.216.205.208]) by smtp.googlemail.com with ESMTPSA id l11-20020a5d674b000000b0030276f42f08sm201410wrw.88.2023.04.20.03.05.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Apr 2023 03:05:52 -0700 (PDT) From: Johannes Thumshirn To: axboe@kernel.dk Cc: johannes.thumshirn@wdc.com, agruenba@redhat.com, cluster-devel@redhat.com, damien.lemoal@wdc.com, dm-devel@redhat.com, dsterba@suse.com, hare@suse.de, hch@lst.de, jfs-discussion@lists.sourceforge.net, kch@nvidia.com, linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-raid@vger.kernel.org, ming.lei@redhat.com, rpeterso@redhat.com, shaggy@kernel.org, snitzer@kernel.org, song@kernel.org, willy@infradead.org, Damien Le Moal Subject: [PATCH v4 02/22] drbd: use __bio_add_page to add page to bio Date: Thu, 20 Apr 2023 12:04:41 +0200 Message-Id: <20230420100501.32981-3-jth@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230420100501.32981-1-jth@kernel.org> References: <20230420100501.32981-1-jth@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org From: Johannes Thumshirn The drbd code only adds a single page to a newly created bio. So use __bio_add_page() to add the page which is guaranteed to succeed in this case. This brings us closer to marking bio_add_page() as __must_check. Signed-off-by: Johannes Thumshirn Reviewed-by: Damien Le Moal --- drivers/block/drbd/drbd_bitmap.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 289876ffbc31..050154eb963d 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -1043,9 +1043,7 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho bio = bio_alloc_bioset(device->ldev->md_bdev, 1, op, GFP_NOIO, &drbd_md_io_bio_set); bio->bi_iter.bi_sector = on_disk_sector; - /* bio_add_page of a single page to an empty bio will always succeed, - * according to api. Do we want to assert that? */ - bio_add_page(bio, page, len, 0); + __bio_add_page(bio, page, len, 0); bio->bi_private = ctx; bio->bi_end_io = drbd_bm_endio;