2609 struct dentry *lock_rename(struct dentry *p1, struct dentry *p2)  in lock_rename()  argument
2613 	if (p1 == p2) {  in lock_rename()
2614 		mutex_lock_nested(&p1->d_inode->i_mutex, I_MUTEX_PARENT);  in lock_rename()
2618 	mutex_lock(&p1->d_inode->i_sb->s_vfs_rename_mutex);  in lock_rename()
2620 	p = d_ancestor(p2, p1);  in lock_rename()
2623 		mutex_lock_nested(&p1->d_inode->i_mutex, I_MUTEX_CHILD);  in lock_rename()
2627 	p = d_ancestor(p1, p2);  in lock_rename()
2629 		mutex_lock_nested(&p1->d_inode->i_mutex, I_MUTEX_PARENT);  in lock_rename()
2634 	mutex_lock_nested(&p1->d_inode->i_mutex, I_MUTEX_PARENT);  in lock_rename()
2640 void unlock_rename(struct dentry *p1, struct dentry *p2)  in unlock_rename()  argument
2642 	mutex_unlock(&p1->d_inode->i_mutex);  in unlock_rename()
2643 	if (p1 != p2) {  in unlock_rename()
2645 		mutex_unlock(&p1->d_inode->i_sb->s_vfs_rename_mutex);  in unlock_rename()