From: Heming Zhao via Ocfs2-devel ocfs2-devel@oss.oracle.com
[ Upstream commit 0737e01de9c411e4db87dcedf4a9789d41b1c5c1 ]
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@suse.com Reviewed-by: Joseph Qi joseph.qi@linux.alibaba.com Cc: Changwei Ge gechangwei@live.cn Cc: Gang He ghe@suse.com Cc: Joel Becker jlbec@evilplan.org Cc: Jun Piao piaojun@huawei.com Cc: Junxiao Bi junxiao.bi@oracle.com Cc: Mark Fasheh mark@fasheh.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Stable-dep-of: ce2fcf1516d6 ("ocfs2: fix memory leak in ocfs2_mount_volume()") Signed-off-by: Sasha Levin sashal@kernel.org --- fs/ocfs2/super.c | 35 +++++++++++++++++++++++------------ 1 file changed, 23 insertions(+), 12 deletions(-)
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index c0e5f1bad499..ca0d6debae97 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1787,11 +1787,10 @@ static int ocfs2_get_sector(struct super_block *sb, 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);
@@ -1801,44 +1800,56 @@ static int ocfs2_mount_volume(struct super_block *sb) 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; }