From patchwork Wed Apr 19 14:09:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Thumshirn X-Patchwork-Id: 13216861 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 1FAF5C77B7C for ; Wed, 19 Apr 2023 14:11:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232533AbjDSOLQ (ORCPT ); Wed, 19 Apr 2023 10:11:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39180 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232143AbjDSOLC (ORCPT ); Wed, 19 Apr 2023 10:11:02 -0400 Received: from mail-wm1-f51.google.com (mail-wm1-f51.google.com [209.85.128.51]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4ABC414467; Wed, 19 Apr 2023 07:10:44 -0700 (PDT) Received: by mail-wm1-f51.google.com with SMTP id 5b1f17b1804b1-3f1763eea08so21543305e9.2; Wed, 19 Apr 2023 07:10:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681913443; x=1684505443; 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=XSziFxMRLlc78BEY3ZIcArKRUqB+ur0VzFu/o2eWTQg=; b=hsgTS+FG82RjOZbneXd3DxidjeSvY0N/s1UTGQ68lALHwiYdHvzCW9FA4aSclKLuu+ fQCwEBipitVHmRigVDC51hPJwVMsAm3o3ghb1ZJzg4ZDpdF+2anf2vqNKcCULBsyD/29 +DdrBwscCFOgTZ4+EF1FSIGTQbdGtLxAR5oYU2mJqQX7NeL89J4y7PnZmmrWJr/jf24t f8Vi7UMvNm0CljViT9nFKhZcM8H77ftoSjQ7tsbFx0ufosSeTuIF2zy/zPBDK9lmojMj 26wdK1P+ZNDyZwcqQTKjG+UrUgFew1ynMaFlx0YApoML8wk4AHVAq5DbnlVUr18AoUf/ F7wg== X-Gm-Message-State: AAQBX9c289qHcbqkNI+CtLPP+XHtmtjtlRohbpW/eryoJOmK1I1fmNWf ACISegocPk0MWIueYa6Y8mM= X-Google-Smtp-Source: AKy350ZNLghyp21Md4xzCnKC/CZ1jD7PS3tRxkpm7/A6UV4bbe7dKQsIepFwKTi5j5wXVP+SbzJYCg== X-Received: by 2002:a5d:6a45:0:b0:2d3:bde8:9ff with SMTP id t5-20020a5d6a45000000b002d3bde809ffmr4938443wrw.34.1681913442744; Wed, 19 Apr 2023 07:10:42 -0700 (PDT) Received: from localhost.localdomain (aftr-62-216-205-204.dynamic.mnet-online.de. [62.216.205.204]) by smtp.googlemail.com with ESMTPSA id q17-20020a5d61d1000000b002faaa9a1721sm7612089wrv.58.2023.04.19.07.10.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Apr 2023 07:10:42 -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 v3 09/19] btrfs: raid56: use __bio_add_page to add single page Date: Wed, 19 Apr 2023 16:09:19 +0200 Message-Id: <20230419140929.5924-10-jth@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230419140929.5924-1-jth@kernel.org> References: <20230419140929.5924-1-jth@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org From: Johannes Thumshirn The btrfs raid58 sector submission code uses bio_add_page() to add a page to a newly created bio. bio_add_page() can fail, but the return value is never checked. Use __bio_add_page() as adding a single page to a newly created bio is guaranteed to succeed. This brings us a step closer to marking bio_add_page() as __must_check. Signed-off-by: Johannes Thumshirn Reviewed-by: Damien Le Moal --- fs/btrfs/raid56.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index 642828c1b299..c8173e003df6 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -1108,7 +1108,7 @@ static int rbio_add_io_sector(struct btrfs_raid_bio *rbio, bio->bi_iter.bi_sector = disk_start >> 9; bio->bi_private = rbio; - bio_add_page(bio, sector->page, sectorsize, sector->pgoff); + __bio_add_page(bio, sector->page, sectorsize, sector->pgoff); bio_list_add(bio_list, bio); return 0; }