From patchwork Tue Apr 26 08:20:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 566607 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 B757FC433FE for ; Tue, 26 Apr 2022 08:45:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344451AbiDZIsf (ORCPT ); Tue, 26 Apr 2022 04:48:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56572 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347180AbiDZIpz (ORCPT ); Tue, 26 Apr 2022 04:45:55 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B280B7CB3E; Tue, 26 Apr 2022 01:37:36 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4CB1460908; Tue, 26 Apr 2022 08:37:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 50BFAC385AC; Tue, 26 Apr 2022 08:37:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1650962255; bh=uaEadmqpPE1CfD4AexJXHcnVRP9yzpsnk7DXbyJr8mA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iFWOl0g6uPHX822R/sCWMX+3y0FGfTPhoIzyY78HBN5bszZTAVAwzWAQNgjseMrMH FSy2Dnhj9yBa8cAP5VoAF8/PQxtWuB/PdIzPz9NQBseNmz5glPD9LUEvKdev3J/NXz 3N9NVWjgT7HVaGYYh0MI15Y0JAzNDZoZF8RDJxfQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Darrick J. Wong" , Jan Kara , Christoph Hellwig , Christian Brauner , Sasha Levin Subject: [PATCH 5.15 004/124] vfs: make sync_filesystem return errors from ->sync_fs Date: Tue, 26 Apr 2022 10:20:05 +0200 Message-Id: <20220426081747.417783842@linuxfoundation.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220426081747.286685339@linuxfoundation.org> References: <20220426081747.286685339@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Darrick J. Wong [ Upstream commit 5679897eb104cec9e99609c3f045a0c20603da4c ] Strangely, sync_filesystem ignores the return code from the ->sync_fs call, which means that syscalls like syncfs(2) never see the error. This doesn't seem right, so fix that. Signed-off-by: Darrick J. Wong Reviewed-by: Jan Kara Reviewed-by: Christoph Hellwig Acked-by: Christian Brauner Signed-off-by: Sasha Levin --- fs/sync.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/fs/sync.c b/fs/sync.c index 3ce8e2137f31..c7690016453e 100644 --- a/fs/sync.c +++ b/fs/sync.c @@ -29,7 +29,7 @@ */ int sync_filesystem(struct super_block *sb) { - int ret; + int ret = 0; /* * We need to be protected against the filesystem going from @@ -52,15 +52,21 @@ int sync_filesystem(struct super_block *sb) * at a time. */ writeback_inodes_sb(sb, WB_REASON_SYNC); - if (sb->s_op->sync_fs) - sb->s_op->sync_fs(sb, 0); + if (sb->s_op->sync_fs) { + ret = sb->s_op->sync_fs(sb, 0); + if (ret) + return ret; + } ret = sync_blockdev_nowait(sb->s_bdev); - if (ret < 0) + if (ret) return ret; sync_inodes_sb(sb); - if (sb->s_op->sync_fs) - sb->s_op->sync_fs(sb, 1); + if (sb->s_op->sync_fs) { + ret = sb->s_op->sync_fs(sb, 1); + if (ret) + return ret; + } return sync_blockdev(sb->s_bdev); } EXPORT_SYMBOL(sync_filesystem);