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| author | Paul E. McKenney <paul.mckenney@linaro.org> | 2011-04-17 23:45:23 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2011-05-05 23:16:55 -0700 |
| commit | 3acf4a9a3d63f23430f940842829175b0778a1b8 (patch) | |
| tree | e0bcf3bc65ac6272425a00703654a70650d8634c /kernel/rcutorture.c | |
| parent | e3995a25fa361ce987a7d0ade00b17e3151519d7 (diff) | |
| download | lwn-3acf4a9a3d63f23430f940842829175b0778a1b8.tar.gz lwn-3acf4a9a3d63f23430f940842829175b0778a1b8.zip | |
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: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcutorture.c')
| -rw-r--r-- | kernel/rcutorture.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c index c224da41890c..4d256dba7d9b 100644 --- a/kernel/rcutorture.c +++ b/kernel/rcutorture.c @@ -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 */ |