diff options
| author | Paul E. McKenney <paulmck@kernel.org> | 2020-06-11 16:43:14 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-06-29 12:01:44 -0700 |
| commit | 775227511843202e65a7f194cbf64f38de01f004 (patch) | |
| tree | 0bc5ef7c51e55bddfb5811ec59f302e9757a97d8 /kernel/rcu/rcutorture.c | |
| parent | bc77a72cd188d44881ee1b9d0a9d65ca8108b508 (diff) | |
rcutorture: Check for unwatched readers
RCU is supposed to be watching all non-idle kernel code and also all
softirq handlers. This commit adds some teeth to this statement by
adding a WARN_ON_ONCE().
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/rcutorture.c')
| -rw-r--r-- | kernel/rcu/rcutorture.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 37455a12898e..9c310016585b 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -1377,6 +1377,7 @@ static bool rcu_torture_one_read(struct torture_random_state *trsp) struct rt_read_seg *rtrsp1; unsigned long long ts; + WARN_ON_ONCE(!rcu_is_watching()); newstate = rcutorture_extend_mask(readstate, trsp); rcutorture_one_extend(&readstate, newstate, trsp, rtrsp++); started = cur_ops->get_gp_seq(); |