From: "Paul E. McKenney" <[email protected]> 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: Paul E. McKenney <[email protected]> Signed-off-by: Boqun Feng <[email protected]> --- kernel/rcu/rcutorture.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 9c9a349b9c7f..be4e3c6b912f 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -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); -- 2.39.5 (Apple Git-154)
