[Ocfs2-devel] + ocfs2-ocfs2_mount_volume-does-cleanup-job-before-return-error.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: ocfs2: ocfs2_mount_volume does cleanup job before return error
has been added to the -mm tree.  Its filename is
     ocfs2-ocfs2_mount_volume-does-cleanup-job-before-return-error.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/ocfs2-ocfs2_mount_volume-does-cleanup-job-before-return-error.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/ocfs2-ocfs2_mount_volume-does-cleanup-job-before-return-error.patch

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------------------------------------------------------
From: Heming Zhao via Ocfs2-devel <ocfs2-devel at oss.oracle.com>
Subject: ocfs2: ocfs2_mount_volume does cleanup job before return error

After this patch, when error, ocfs2_fill_super doesn't take care to
release resources which are allocated in ocfs2_mount_volume.

Link: https://lkml.kernel.org/r/20220424130952.2436-5-heming.zhao@suse.com
Signed-off-by: Heming Zhao <heming.zhao at suse.com>
Reviewed-by: Joseph Qi <joseph.qi at linux.alibaba.com>
Cc: Changwei Ge <gechangwei at live.cn>
Cc: Gang He <ghe at suse.com>
Cc: Joel Becker <jlbec at evilplan.org>
Cc: Jun Piao <piaojun at huawei.com>
Cc: Junxiao Bi <junxiao.bi at oracle.com>
Cc: Mark Fasheh <mark at fasheh.com>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
---

 fs/ocfs2/super.c |   35 +++++++++++++++++++++++------------
 1 file changed, 23 insertions(+), 12 deletions(-)

--- a/fs/ocfs2/super.c~ocfs2-ocfs2_mount_volume-does-cleanup-job-before-return-error
+++ a/fs/ocfs2/super.c
@@ -1803,11 +1803,10 @@ static int ocfs2_get_sector(struct super
 static int ocfs2_mount_volume(struct super_block *sb)
 {
 	int status = 0;
-	int unlock_super = 0;
 	struct ocfs2_super *osb = OCFS2_SB(sb);
 
 	if (ocfs2_is_hard_readonly(osb))
-		goto leave;
+		goto out;
 
 	mutex_init(&osb->obs_trim_fs_mutex);
 
@@ -1817,44 +1816,56 @@ static int ocfs2_mount_volume(struct sup
 		if (status == -EBADR && ocfs2_userspace_stack(osb))
 			mlog(ML_ERROR, "couldn't mount because cluster name on"
 			" disk does not match the running cluster name.\n");
-		goto leave;
+		goto out;
 	}
 
 	status = ocfs2_super_lock(osb, 1);
 	if (status < 0) {
 		mlog_errno(status);
-		goto leave;
+		goto out_dlm;
 	}
-	unlock_super = 1;
 
 	/* This will load up the node map and add ourselves to it. */
 	status = ocfs2_find_slot(osb);
 	if (status < 0) {
 		mlog_errno(status);
-		goto leave;
+		goto out_super_lock;
 	}
 
 	/* load all node-local system inodes */
 	status = ocfs2_init_local_system_inodes(osb);
 	if (status < 0) {
 		mlog_errno(status);
-		goto leave;
+		goto out_super_lock;
 	}
 
 	status = ocfs2_check_volume(osb);
 	if (status < 0) {
 		mlog_errno(status);
-		goto leave;
+		goto out_system_inodes;
 	}
 
 	status = ocfs2_truncate_log_init(osb);
-	if (status < 0)
+	if (status < 0) {
 		mlog_errno(status);
+		goto out_system_inodes;
+	}
 
-leave:
-	if (unlock_super)
-		ocfs2_super_unlock(osb, 1);
+	ocfs2_super_unlock(osb, 1);
+	return 0;
 
+out_system_inodes:
+	if (osb->local_alloc_state == OCFS2_LA_ENABLED)
+		ocfs2_shutdown_local_alloc(osb);
+	ocfs2_release_system_inodes(osb);
+	/* before journal shutdown, we should release slot_info */
+	ocfs2_free_slot_info(osb);
+	ocfs2_journal_shutdown(osb);
+out_super_lock:
+	ocfs2_super_unlock(osb, 1);
+out_dlm:
+	ocfs2_dlm_shutdown(osb, 0);
+out:
 	return status;
 }
 
_

Patches currently in -mm which might be from ocfs2-devel at oss.oracle.com are

ocfs2-fix-mounting-crash-if-journal-is-not-alloced.patch
ocfs2-change-return-type-of-ocfs2_resmap_init.patch
ocfs2-ocfs2_initialize_super-does-cleanup-job-before-return-error.patch
ocfs2-ocfs2_mount_volume-does-cleanup-job-before-return-error.patch
ocfs2-rewrite-error-handling-of-ocfs2_fill_super.patch