From patchwork Wed Mar 29 17:05:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Thumshirn X-Patchwork-Id: 13193003 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 03D15C761AF for ; Wed, 29 Mar 2023 17:07:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231459AbjC2RHp (ORCPT ); Wed, 29 Mar 2023 13:07:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231311AbjC2RHO (ORCPT ); Wed, 29 Mar 2023 13:07:14 -0400 Received: from esa4.hgst.iphmx.com (esa4.hgst.iphmx.com [216.71.154.42]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D28A6A77; Wed, 29 Mar 2023 10:06:55 -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=1680109615; x=1711645615; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=i7JyUij1Ub1O7HqbOeYPQInyJM26bTtTnu0sfac9RNQ=; b=MBZ941axfw85eQJDG5jKlsJCB+VJWs/z2sA6T7eFhYyRLxgHhQk5MCZ1 4HRWuhBCipbuTJc9kjG+bqRzbrgSThu164Js3tpGkVC1X3OeG/NGFHvgo 13qsE+KjvBRl6eg0kYLFsuiqqKanUprGECF5neuOE4EZlwqfDj2GxeWkY 8kwmYcmNr3STjK2hkNWmjaPmYKPPQ+hBoouh9VE4QeRUr+GywxoBW2jo1 SClrfs3I/pTV4AA1HxI/jZc/X6geaGUSu3tXPAiDKwU/x0N/a59QR9zyP JKCd1JR0RBl30pza33+IAbwYKzb07qiIED9YIbMln54yhMLga+IySL9Q1 w==; X-IronPort-AV: E=Sophos;i="5.98,301,1673884800"; d="scan'208";a="225092872" Received: from h199-255-45-14.hgst.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 30 Mar 2023 01:06:49 +0800 IronPort-SDR: Ca3xb+X5kMhnI9t31wKcbKKBTNem+M7h5BTp+CW5effDJU4N/XNiML4fI0+Mfx1vxMHFQDLI/5 z833ie5Fp5DptOY43hPWrf9qcCdHf9Up92omfNpwW308gcoaXXm6VEtHdlvs6txhmujy9nDhjl kCZh+p+dmNV0ZLiyVD0KHeCAJpXZdTWJd40z84bZg/2bDifE1qp3wqqViEy0UrenN+zNREc61T dW7hfuiZreNrgp9RjW3pI87R90rcXR84IclKUAZpI5oKiDKDtoMkC18nj9bA1UiKgXdr70CxbD /5g= Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 29 Mar 2023 09:22:58 -0700 IronPort-SDR: qYm/yHxdWsn4PdNU7In0p9zW29uqLpM/KDDhaShYGqmgAouVltU23pwtiDrLcUkxqLoKGpWanX KdIaI00A9Tcxh5akMv0Mg9mzy1VnQEctwuee7xO/j/DPrFAHW8t1jmq6JmwNycdN5GKOwv9LqD EwWq9gZmEVjS+Nt+UWUBK3vepfteneMD0hPTTSlwc9wqo7tnmscJXQAHH1TYXa775C3cNxwC/g gWNbfWYibYW6ZAMQvInFb5YgbQ/DLueK88vnvV9kIxEJhKmn5O2bRK+Mb1jpC7O7+PM6IArPK7 iYU= WDCIronportException: Internal Received: from unknown (HELO redsun91.ssa.fujisawa.hgst.com) ([10.149.66.72]) by uls-op-cesaip01.wdc.com with ESMTP; 29 Mar 2023 10:06:48 -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 , David Sterba , linux-btrfs@vger.kernel.org, Johannes Thumshirn Subject: [PATCH 10/19] jfs: logmgr: use __bio_add_page to add single page to bio Date: Wed, 29 Mar 2023 10:05:56 -0700 Message-Id: <902f83de56c67b333959d8b8b4cf37a25414e927.1680108414.git.johannes.thumshirn@wdc.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-raid@vger.kernel.org The JFS IO 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/jfs/jfs_logmgr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c index 695415cbfe98..15c645827dec 100644 --- a/fs/jfs/jfs_logmgr.c +++ b/fs/jfs/jfs_logmgr.c @@ -1974,7 +1974,7 @@ static int lbmRead(struct jfs_log * log, int pn, struct lbuf ** bpp) bio = bio_alloc(log->bdev, 1, REQ_OP_READ, GFP_NOFS); bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9); - bio_add_page(bio, bp->l_page, LOGPSIZE, bp->l_offset); + __bio_add_page(bio, bp->l_page, LOGPSIZE, bp->l_offset); BUG_ON(bio->bi_iter.bi_size != LOGPSIZE); bio->bi_end_io = lbmIODone; @@ -2115,7 +2115,7 @@ static void lbmStartIO(struct lbuf * bp) bio = bio_alloc(log->bdev, 1, REQ_OP_WRITE | REQ_SYNC, GFP_NOFS); bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9); - bio_add_page(bio, bp->l_page, LOGPSIZE, bp->l_offset); + __bio_add_page(bio, bp->l_page, LOGPSIZE, bp->l_offset); BUG_ON(bio->bi_iter.bi_size != LOGPSIZE); bio->bi_end_io = lbmIODone;