@@ -1502,11 +1502,11 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
path->reada = 2;
if (inode < src) {
- mutex_lock(&inode->i_mutex);
- mutex_lock(&src->i_mutex);
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_PARENT);
+ mutex_lock_nested(&src->i_mutex, I_MUTEX_CHILD);
} else {
- mutex_lock(&src->i_mutex);
- mutex_lock(&inode->i_mutex);
+ mutex_lock_nested(&src->i_mutex, I_MUTEX_PARENT);
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_CHILD);
}
/* determine range to clone */