Commit-ID: a76a9a485d730024a7cbd76efcd9c6eb46003829
Gitweb: http://git.kernel.org/tip/a76a9a485d730024a7cbd76efcd9c6eb46003829
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Tue, 30 Jun 2015 08:17:40 -0700
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Wed, 22 Jul 2015 15:27:33 -0700
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@xxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcu/update.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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 @@ EXPORT_SYMBOL_GPL(call_rcu_tasks);
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. */
--
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