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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2011-05-30 20:38:55 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2011-06-14 15:25:15 -0700 |
| commit | 9a432736904d386cda28b987b38ba14dae960ecc (patch) | |
| tree | 20294203f9c6132d79737e9ab54c746546afe7d4 /kernel/rcutree_plugin.h | |
| parent | 59c5f46fbe01a00eedf54a23789634438bb80603 (diff) | |
| download | linux-9a432736904d386cda28b987b38ba14dae960ecc.tar.gz linux-9a432736904d386cda28b987b38ba14dae960ecc.tar.bz2 linux-9a432736904d386cda28b987b38ba14dae960ecc.zip | |
rcu: Simplify curing of load woes
Make the functions creating the kthreads wake them up. Leverage the
fact that the per-node and boost kthreads can run anywhere, thus
dispensing with the need to wake them up once the incoming CPU has
gone fully online.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Daniel J Blueman <daniel.blueman@gmail.com>
Diffstat (limited to 'kernel/rcutree_plugin.h')
| -rw-r--r-- | kernel/rcutree_plugin.h | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h index c8bff3099a89..ea2e2fb79e81 100644 --- a/kernel/rcutree_plugin.h +++ b/kernel/rcutree_plugin.h @@ -1299,15 +1299,10 @@ static int __cpuinit rcu_spawn_one_boost_kthread(struct rcu_state *rsp, raw_spin_unlock_irqrestore(&rnp->lock, flags); sp.sched_priority = RCU_KTHREAD_PRIO; sched_setscheduler_nocheck(t, SCHED_FIFO, &sp); + wake_up_process(t); /* get to TASK_INTERRUPTIBLE quickly. */ return 0; } -static void __cpuinit rcu_wake_one_boost_kthread(struct rcu_node *rnp) -{ - if (rnp->boost_kthread_task) - wake_up_process(rnp->boost_kthread_task); -} - #else /* #ifdef CONFIG_RCU_BOOST */ static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags) @@ -1331,10 +1326,6 @@ static int __cpuinit rcu_spawn_one_boost_kthread(struct rcu_state *rsp, return 0; } -static void __cpuinit rcu_wake_one_boost_kthread(struct rcu_node *rnp) -{ -} - #endif /* #else #ifdef CONFIG_RCU_BOOST */ #ifndef CONFIG_SMP |