Commit-ID: 3cff54a830f760eafc9c20191ce1d4b8c356d002 Gitweb: https://git.kernel.org/tip/3cff54a830f760eafc9c20191ce1d4b8c356d002 Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> AuthorDate: Thu, 19 Jul 2018 15:25:57 -0700 Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> CommitDate: Wed, 29 Aug 2018 09:20:48 -0700 rcutorture: Increase rcu_read_delay() longdelay_ms RCU now takes certain actions 100 and 200 milliseconds into a grace period by default, but rcutorture only runs RCU read-side critical sections with durations up to 50 milliseconds. This commit therefore increases test coverage by increasing the maximum critical-section duration to 300 milliseconds. Note that the existing code automatically dials down the probability of long delays based on the maximum duration, which means that this change should not significantly change the rate of execution of RCU read-side critical sections. Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> --- kernel/rcu/rcutorture.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 316083687fd7..b98bb11d47a2 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -323,7 +323,7 @@ static void rcu_read_delay(struct torture_random_state *rrsp) unsigned long started; unsigned long completed; const unsigned long shortdelay_us = 200; - const unsigned long longdelay_ms = 50; + const unsigned long longdelay_ms = 300; unsigned long long ts; /* We want a short delay sometimes to make a reader delay the grace
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