Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 3acf4a9a authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Paul E. McKenney
Browse files

rcu: avoid hammering sched with yet another bound RT kthread 



The scheduler does not appear to take kindly to having multiple
real-time threads bound to a CPU that is going offline.  So this
commit is a temporary hack-around to avoid that happening.

Signed-off-by: default avatarPaul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent e3995a25

kernel/rcutorture.c

+3 −3
Original line number Diff line number Diff line
@@ -163,11 +163,11 @@ static int stutter_pause_test; 
#endif

int rcutorture_runnable = RCUTORTURE_RUNNABLE_INIT;



#ifdef CONFIG_RCU_BOOST

#if defined(CONFIG_RCU_BOOST) && !defined(CONFIG_HOTPLUG_CPU)

#define rcu_can_boost() 1

#else /* #ifdef CONFIG_RCU_BOOST */

#else /* #if defined(CONFIG_RCU_BOOST) && !defined(CONFIG_HOTPLUG_CPU) */

#define rcu_can_boost() 0

#endif /* #else #ifdef CONFIG_RCU_BOOST */

#endif /* #else #if defined(CONFIG_RCU_BOOST) && !defined(CONFIG_HOTPLUG_CPU) */



static unsigned long boost_starttime;	/* jiffies of next boost test start. */

DEFINE_MUTEX(boost_mutex);		/* protect setting boost_starttime */