Re: [RFC PATCH -rt 1/2] RCU priority boosting that survives vicious testing

[Ingo Molnar <mingo@elte.hu>]

* Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:

> Here is the RCU priority-boosting patch.  Pretty close to the 
> http://lkml.org/lkml/2007/1/24/295 version.  This patch prevents 
> preempted or blocked low-priority RCU readers from indefinitely 
> stalling RCU grace periods.

thanks - i've applied both patches to -rt and it's looking good so far! 
Find a small cosmetic fix below.

	Ingo

Index: linux/kernel/rcupreempt.c
===================================================================
--- linux.orig/kernel/rcupreempt.c
+++ linux/kernel/rcupreempt.c
@@ -489,7 +489,7 @@ void init_rcu_boost_late(void)
 	rcu_boost_task = kthread_run(rcu_booster, NULL, "RCU Prio Booster");
 	if (IS_ERR(rcu_boost_task)) {
 		printk(KERN_ALERT
-		       "Unable to create RCU Priority Booster, errno %d\n",
+		       "Unable to create RCU Priority Booster, errno %ld\n",
 		       -PTR_ERR(rcu_boost_task));
 
 		/*