Commit-ID: 60479676eb6e9913176d93ebad194e3dc167bc63 Gitweb: http://git.kernel.org/tip/60479676eb6e9913176d93ebad194e3dc167bc63 Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> AuthorDate: Wed, 14 Jan 2015 13:20:26 -0800 Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> CommitDate: Wed, 14 Jan 2015 13:20:26 -0800 ksoftirqd: Use new cond_resched_rcu_qs() function Simplify run_ksoftirqd() by using the new cond_resched_rcu_qs() function that conditionally reschedules, but unconditionally supplies an RCU quiescent state. This commit is separate from the previous commit by Calvin Owens because Calvin's approach can be backported, while this commit cannot be. The reason that this commit cannot be backported is that cond_resched_rcu_qs() does not always provide the needed quiescent state in earlier kernels. Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> --- kernel/softirq.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/kernel/softirq.c b/kernel/softirq.c index c497fcd..8cdb988 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -657,12 +657,7 @@ static void run_ksoftirqd(unsigned int cpu) */ __do_softirq(); local_irq_enable(); - cond_resched(); - - preempt_disable(); - rcu_note_context_switch(); - preempt_enable(); - + cond_resched_rcu_qs(); return; } local_irq_enable(); -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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