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30 May 2023 07:59:09 -0700 IronPort-SDR: syhtlBwgzrZqo2FxlZ+3+3UNQOSy9KOrXWDC7tRnbhEDdQ7M+iJ8X9kfYPjunQnyzAJ/BUunY7 TJFCtDpOg2F5DZ15LsnpaT3Bwo2hrn6uLSc+fNqG13pjWmrx9wooa6bynhnNQMlDHsy2Hk38NM QrDHnT8XkrjMZUyM4mGcFvGUGlEisF2RVaO8OEk9Qwnu8PpGMQpoWoaS1QquWy7J7yXqddyE5U EJEo3uszMCInYfCLIryejOvT01pFM14+/21EyuCsYg0N/wZvR8GfT4QE1m8ln383WoalorxH4j QYQ= WDCIronportException: Internal Received: from unknown (HELO redsun91.ssa.fujisawa.hgst.com) ([10.149.66.6]) by uls-op-cesaip02.wdc.com with ESMTP; 30 May 2023 08:49:54 -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 , gouhao@uniontech.com, Johannes Thumshirn , Damien Le Moal Subject: [PATCH v6 09/20] gfs2: use __bio_add_page for adding single page to bio Date: Tue, 30 May 2023 08:49:12 -0700 Message-Id: <15cfecbbac931aa18bfd89cede85bcde1d6edd77.1685461490.git.johannes.thumshirn@wdc.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 3358C12001F X-Rspam-User: X-Stat-Signature: p1d59ss4og3kqmxqc7f3xmgqf41yubyd X-Rspamd-Server: rspam03 X-HE-Tag: 1685461797-533532 X-HE-Meta: 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 b24MFxfw 3ycVL1aTW+hzEBRnaK+K+p0KRfjTbIFLGEwtH60LP9eq3BtIzzbTH7kDqQLUV5psOMLBsycnViiB2UpDvWM/rp/9jSIfZ7c40RNIStL3MBazeIoQvZKKSAPSvBnfjChyBp9xaXall8izGZS73FjYUZCPuaNP0DM68dywp3lt7hLJCTmllra7RCGpRgaw3nU0YWmTq7Qejm1T78VLOLjhLGB1hAtJv4GJd67lwY7MQ9CVQBqyuvTrXRik9e2dHUU76LR13ObwW2k+i4H0rdi4n0H1ULPRQSxY8NPeZ8Sij7efxDhvTPOFteXLw9HPgdczqsqabmprbMJjhtm8D8Wj6/Z0c45VMK45IcLeNe7rL2rXsJvMeC8ku6XqkLGhllhna8hTWa5TD0LyUYb0HEOSAaWM7+qGL/nUaSpzpmkATS333LdE= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 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; -- 2.40.1 From mboxrd@z Thu Jan 1 00:00:00 1970 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9EEA9C77B7C for ; Wed, 31 May 2023 11:38:38 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3DCDA6B0081; 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31 May 2023 04:38:31 -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 v6 09/20] gfs2: use __bio_add_page for adding single page to bio Date: Wed, 31 May 2023 04:37:51 -0700 Message-ID: <15cfecbbac931aa18bfd89cede85bcde1d6edd77.1685461490.git.johannes.thumshirn@wdc.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: D2EE1120021 X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: wa6ai6cd9qgwob61bijd56rb1kxu81zo X-HE-Tag: 1685533115-827745 X-HE-Meta: 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 gAsOmekX prMVgO5j11v9JSI6xOrb6NGAYsaLuz9OXo7EU9dCvuZAcr2D23Or+sZOSwKaSIl6PArS0HY4A1j6eDcZ1WCiP4YJmj4Ly1KeYD0FWKcKwr3a2HrNBydhQIae0Lw69+EvlkWy+d1WwAseAqqScaDK2EpkJAfiSEUDJiQ2hAqTwxWsN8q5Hc/a/6ug4IYq6UnBozV+ejsuLM1cNttoSrHxb+wAojH5/M36PXLbsN4lXHfPasDhjpmVlCQwM2q/6XacwRD9Dq/Cz0cN5IdK/y+SuQ2qFCNFRHk9925ASLATQo7Yk3ITGUGVaniWKE97KRXzgQCkCL8OMKOjdmJhrxSM6j9LZ6BMyY7663LAz/2wkz9Qwv4CDVzaY3pG/PlKq3nm+swRhtvWj0GIW7vyHxdElvkhrpW8+5DPGKzi3xfkYvvoYiXA= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Message-ID: <20230531113751.lRmzycgp_z8UAKRD-E_f1NYPlD1DDlfTs66IaBhl-Ck@z> 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 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; -- 2.40.1