From patchwork Wed May 31 11:50:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Thumshirn X-Patchwork-Id: 13262068 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 382EEC7EE31 for ; Wed, 31 May 2023 11:51:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235708AbjEaLvl (ORCPT ); Wed, 31 May 2023 07:51:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49056 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235666AbjEaLvV (ORCPT ); Wed, 31 May 2023 07:51:21 -0400 Received: from esa2.hgst.iphmx.com (esa2.hgst.iphmx.com [68.232.143.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EB669129; Wed, 31 May 2023 04:51:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1685533879; x=1717069879; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=cSkd5AssBzijA2arQQJ/jDabPq82unQrdrIRPZntKD8=; b=WM0knnXapAC5feO/S6h81xnNNM3waEoDY9O2nv1/nCSxQfm9wl3v1hsD qZAclJAlfC7mNzFzQ9fYn/4UqHWL+Lt/1SdO2mj7W24O+UXmtrbkDGMwc yOowkR8YpDRpn++Q0KSxZNr+qAg0fjmM5aQRiFRvmGY4+8jyp8gvIUsgQ VIJG0mijlPYEVGcCsaRHHlh6IYlprj/wIzcOg2+xaGG0+CNareX6VfsGY hBJy5n/pYY+lWPWKOv3zhTAI1a/LEfBsNpnM+qHcKF/S7ZtzvtaGHOUdJ jm0FP+UwgKGViQqAMWgTAAP+k2eIVASjgaOZGFZSI/fvGBQRVbmAkmlnY Q==; X-IronPort-AV: E=Sophos;i="6.00,207,1681142400"; d="scan'208";a="336547938" Received: from uls-op-cesaip01.wdc.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 31 May 2023 19:51:19 +0800 IronPort-SDR: 26jZ5Utg8+eyK9q/FSBdEiGNLvXcGJaLZ5EJxDkdxui//2ZW3AYgHWZblk1+orFtRo42OUCb4Y k8tzWGuHIGc8T5ECOVDjKxQ0Ljj0QZ2pTC0gODPc8eyVEM3kiDg48VrHT7UyN2IKjBF9uhhyBf WoDsfmTLGNxGCoXuwkAXSeY8b2D/NXqIp/F7TCVE0l1MhyafWbTCJbQW5HVviz3G2RrYIIHEV7 bv07e+GtQilvjcG548A/q8xjzKqRi+k2RaxMOTQQG5mDp19v60pknaf0LxLguLZ6cfEXgJqoCX Vm8= Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 31 May 2023 04:06:12 -0700 IronPort-SDR: JnJbKILHB8Hx67SEZIIpe1y6Cfe/bqIgfbZm4SN6soCmKZu0UJsjeqJfDfsm9CfmXDkQbCKFO8 YsXT66muLI4R3ZWh6EvCz+i6T7UJutXo9MG/o9yRxEJcrRvYstuAWlEz2tMVsgpBX0tLGYQh7B kQ8Kflt+H5RbvfNj5NAtdJNflZq2RxUBDL/5aMLyld+sYxFLoDJQXfDCGd4s6JHXPT2Avp5goJ MkE8t0T95Q1EaWVnN8BYTTgeHfpax769+8hNJ/WqPxGkEOmGHA6NOSa2mV2CJ2fxNtJg3AkHmF 54c= WDCIronportException: Internal Received: from unknown (HELO redsun91.ssa.fujisawa.hgst.com) ([10.149.66.6]) by uls-op-cesaip02.wdc.com with ESMTP; 31 May 2023 04:51:17 -0700 From: Johannes Thumshirn To: Jens Axboe Cc: Christoph Hellwig , Hannes Reinecke , Chaitanya Kulkarni , Damien Le Moal , Ming Lei , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, dm-devel@redhat.com, Song Liu , linux-raid@vger.kernel.org, Mike Snitzer , Matthew Wilcox , Dave Kleikamp , jfs-discussion@lists.sourceforge.net, cluster-devel@redhat.com, Bob Peterson , Andreas Gruenbacher , Mikulas Patocka , gouha7@uniontech.com, Johannes Thumshirn , Damien Le Moal Subject: [PATCH v7 09/20] gfs2: use __bio_add_page for adding single page to bio Date: Wed, 31 May 2023 04:50:32 -0700 Message-Id: <087c67d4e4973f949d3519c1e4822784ce583c5a.1685532726.git.johannes.thumshirn@wdc.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org The GFS2 superblock reading 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. Reviewed-by: Damien Le Moal Reviewed-by: Andreas Gruenbacher Reviewed-by: Christoph Hellwig Signed-off-by: Johannes Thumshirn --- fs/gfs2/ops_fstype.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index 9af9ddb61ca0..cd962985b058 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -254,7 +254,7 @@ static int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector, int silent) bio = bio_alloc(sb->s_bdev, 1, REQ_OP_READ | REQ_META, GFP_NOFS); bio->bi_iter.bi_sector = sector * (sb->s_blocksize >> 9); - bio_add_page(bio, page, PAGE_SIZE, 0); + __bio_add_page(bio, page, PAGE_SIZE, 0); bio->bi_end_io = end_bio_io_page; bio->bi_private = page;