From: Paul E. McKenney Date: Tue, 30 Jun 2015 15:17:40 +0000 (-0700) Subject: rcu: Fix backwards RCU_LOCKDEP_WARN() in synchronize_rcu_tasks() X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a76a9a485d730024a7cbd76efcd9c6eb46003829;p=linux-beck.git 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 Signed-off-by: Paul E. McKenney --- diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c index 47268fb1d27b..7a0b3bc7c5ed 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. */