Commit 38b43eca authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Boqun Feng
Browse files

rcutorture: Complain when invalid SRCU reader_flavor is specified 



Currently, rcutorture ignores reader_flavor bits that are not in the
SRCU_READ_FLAVOR_ALL bitmask, which could confuse rcutorture users into
believing buggy patches had been fully tested.  This commit therefore
produces a splat in this case.

Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
Signed-off-by: default avatarBoqun Feng <boqun.feng@gmail.com>
parent 5d45bdf2

kernel/rcu/rcutorture.c

+2 −0
Original line number Diff line number Diff line
@@ -689,6 +689,8 @@ static int srcu_torture_read_lock(void) 
	int idx;

	int ret = 0;



	WARN_ON_ONCE(reader_flavor & ~SRCU_READ_FLAVOR_ALL);



	if ((reader_flavor & SRCU_READ_FLAVOR_NORMAL) || !(reader_flavor & SRCU_READ_FLAVOR_ALL)) {

		idx = srcu_read_lock(srcu_ctlp);

		WARN_ON_ONCE(idx & ~0x1);