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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4E7BC67871 for ; Mon, 16 Jan 2023 16:21:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233020AbjAPQVu (ORCPT ); Mon, 16 Jan 2023 11:21:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232987AbjAPQVK (ORCPT ); Mon, 16 Jan 2023 11:21:10 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D688725E24 for ; Mon, 16 Jan 2023 08:11:46 -0800 (PST) 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 ams.source.kernel.org (Postfix) with ESMTPS id 89D05B81087 for ; Mon, 16 Jan 2023 16:11:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B4274C433F1; Mon, 16 Jan 2023 16:11:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673885504; bh=GyBSvLiSyxK6VcnYbzJGlHSO98O3h0uC7NSwX+9QAw8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pvNiyx2MBhQo+ZH210HR3GWImm0z3fyYcvuAHlqYuUQizZfJbK62Y6xXtnEFNOcZN UXFEFQMYKLKZxMjS2F02EZcf0kFpq3FtP+DqgDP+b+Ik3hHXGcq/UpNrw0BF2q17sB w2LTL5VTePEFSKqfkSnAVptr9xwKRDf8bP6FaG0Y= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Heming Zhao , Joseph Qi , Changwei Ge , Gang He , Joel Becker , Jun Piao , Junxiao Bi , Mark Fasheh , Andrew Morton , Sasha Levin Subject: [PATCH 5.4 077/658] ocfs2: rewrite error handling of ocfs2_fill_super Date: Mon, 16 Jan 2023 16:42:45 +0100 Message-Id: <20230116154913.155810112@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116154909.645460653@linuxfoundation.org> References: <20230116154909.645460653@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Heming Zhao via Ocfs2-devel [ Upstream commit f1e75d128b46e3b066e7b2e7cfca10491109d44d ] Current ocfs2_fill_super() uses one goto label "read_super_error" to handle all error cases. And with previous serial patches, the error handling should fork more branches to handle different error cases. This patch rewrite the error handling of ocfs2_fill_super. Link: https://lkml.kernel.org/r/20220424130952.2436-6-heming.zhao@suse.com Signed-off-by: Heming Zhao Reviewed-by: Joseph Qi Cc: Changwei Ge Cc: Gang He Cc: Joel Becker Cc: Jun Piao Cc: Junxiao Bi Cc: Mark Fasheh Signed-off-by: Andrew Morton Stable-dep-of: ce2fcf1516d6 ("ocfs2: fix memory leak in ocfs2_mount_volume()") Signed-off-by: Sasha Levin --- fs/ocfs2/super.c | 67 +++++++++++++++++++++++------------------------- 1 file changed, 32 insertions(+), 35 deletions(-) diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index ead43f95bb43..38e51868c2d3 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -984,28 +984,27 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { status = -EINVAL; - goto read_super_error; + goto out; } /* probe for superblock */ status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); if (status < 0) { mlog(ML_ERROR, "superblock probe failed!\n"); - goto read_super_error; + goto out; } status = ocfs2_initialize_super(sb, bh, sector_size, &stats); - osb = OCFS2_SB(sb); - if (status < 0) { - mlog_errno(status); - goto read_super_error; - } brelse(bh); bh = NULL; + if (status < 0) + goto out; + + osb = OCFS2_SB(sb); if (!ocfs2_check_set_options(sb, &parsed_options)) { status = -EINVAL; - goto read_super_error; + goto out_super; } osb->s_mount_opt = parsed_options.mount_opt; osb->s_atime_quantum = parsed_options.atime_quantum; @@ -1022,7 +1021,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) status = ocfs2_verify_userspace_stack(osb, &parsed_options); if (status) - goto read_super_error; + goto out_super; sb->s_magic = OCFS2_SUPER_MAGIC; @@ -1036,7 +1035,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) status = -EACCES; mlog(ML_ERROR, "Readonly device detected but readonly " "mount was not specified.\n"); - goto read_super_error; + goto out_super; } /* You should not be able to start a local heartbeat @@ -1045,7 +1044,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) status = -EROFS; mlog(ML_ERROR, "Local heartbeat specified on readonly " "device.\n"); - goto read_super_error; + goto out_super; } status = ocfs2_check_journals_nolocks(osb); @@ -1054,9 +1053,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) mlog(ML_ERROR, "Recovery required on readonly " "file system, but write access is " "unavailable.\n"); - else - mlog_errno(status); - goto read_super_error; + goto out_super; } ocfs2_set_ro_flag(osb, 1); @@ -1072,10 +1069,8 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) } status = ocfs2_verify_heartbeat(osb); - if (status < 0) { - mlog_errno(status); - goto read_super_error; - } + if (status < 0) + goto out_super; osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, ocfs2_debugfs_root); @@ -1089,15 +1084,14 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) status = ocfs2_mount_volume(sb); if (status < 0) - goto read_super_error; + goto out_debugfs; if (osb->root_inode) inode = igrab(osb->root_inode); if (!inode) { status = -EIO; - mlog_errno(status); - goto read_super_error; + goto out_dismount; } osb->osb_dev_kset = kset_create_and_add(sb->s_id, NULL, @@ -1105,7 +1099,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) if (!osb->osb_dev_kset) { status = -ENOMEM; mlog(ML_ERROR, "Unable to create device kset %s.\n", sb->s_id); - goto read_super_error; + goto out_dismount; } /* Create filecheck sysfs related directories/files at @@ -1114,14 +1108,13 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) status = -ENOMEM; mlog(ML_ERROR, "Unable to create filecheck sysfs directory at " "/sys/fs/ocfs2/%s/filecheck.\n", sb->s_id); - goto read_super_error; + goto out_dismount; } root = d_make_root(inode); if (!root) { status = -ENOMEM; - mlog_errno(status); - goto read_super_error; + goto out_dismount; } sb->s_root = root; @@ -1168,17 +1161,21 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) return status; -read_super_error: - brelse(bh); - - if (status) - mlog_errno(status); +out_dismount: + atomic_set(&osb->vol_state, VOLUME_DISABLED); + wake_up(&osb->osb_mount_event); + ocfs2_dismount_volume(sb, 1); + goto out; - if (osb) { - atomic_set(&osb->vol_state, VOLUME_DISABLED); - wake_up(&osb->osb_mount_event); - ocfs2_dismount_volume(sb, 1); - } +out_debugfs: + debugfs_remove_recursive(osb->osb_debug_root); +out_super: + ocfs2_release_system_inodes(osb); + kfree(osb->recovery_map); + ocfs2_delete_osb(osb); + kfree(osb); +out: + mlog_errno(status); return status; } -- 2.35.1