Function xx causes a deadlock，because s_vfs_rename_mutex was not released when return
Signed-off-by: Li Dong <lidong@xxxxxxxx>
---
fs/namei.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/namei.c b/fs/namei.c
index 91171da719c5..63b3fd05fef2 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3076,8 +3076,10 @@ struct dentry *lock_rename_child(struct dentry *c1, struct dentry *p2)
/*
* nobody can move out of any directories on this fs.
*/
- if (likely(c1->d_parent != p2))
+ if (likely(c1->d_parent != p2)) {
+ mutex_unlock(&c1->d_sb->s_vfs_rename_mutex);
return lock_two_directories(c1->d_parent, p2);
+ }
/*
* c1 got moved into p2 while we were taking locks;
--
2.31.1.windows.1
