simple_transaction_lock  758 fs/libfs.c     	static DEFINE_SPINLOCK(simple_transaction_lock);
simple_transaction_lock  767 fs/libfs.c     	spin_lock(&simple_transaction_lock);
simple_transaction_lock  771 fs/libfs.c     		spin_unlock(&simple_transaction_lock);
simple_transaction_lock  778 fs/libfs.c     	spin_unlock(&simple_transaction_lock);