rcu: Fix backwards RCU_LOCKDEP_WARN() in synchronize_rcu_tasks()
The RCU_LOCKDEP_WARN() in synchronize_rcu_tasks() triggers if the
scheduler is active, which is backwards. This commit therefore
negates the test.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index 47268fb..7a0b3bc 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -589,7 +589,7 @@
void synchronize_rcu_tasks(void)
{
/* Complain if the scheduler has not started. */
- RCU_LOCKDEP_WARN(rcu_scheduler_active,
+ RCU_LOCKDEP_WARN(!rcu_scheduler_active,
"synchronize_rcu_tasks called too soon");
/* Wait for the grace period. */
