From a8941d7ec81678fb69aea7183338175f112f3e0d Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 25 Jan 2011 16:30:03 +0100 Subject: [PATCH] sched: Simplify the idle scheduling class Since commit 48c5ccae88dcd (sched: Simplify cpu-hot-unplug task migration) this should no longer happen, so remove the code. Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- kernel/sched_idletask.c | 23 ++++------------------- 1 file changed, 4 insertions(+), 19 deletions(-) diff --git a/kernel/sched_idletask.c b/kernel/sched_idletask.c index 9fa0f402c87c..41eb62a0808b 100644 --- a/kernel/sched_idletask.c +++ b/kernel/sched_idletask.c @@ -52,31 +52,16 @@ static void set_curr_task_idle(struct rq *rq) { } -static void switched_to_idle(struct rq *rq, struct task_struct *p, - int running) +static void +switched_to_idle(struct rq *rq, struct task_struct *p, int running) { - /* Can this actually happen?? */ - if (running) - resched_task(rq->curr); - else - check_preempt_curr(rq, p, 0); + BUG(); } static void prio_changed_idle(struct rq *rq, struct task_struct *p, int oldprio, int running) { - /* This can happen for hot plug CPUS */ - - /* - * Reschedule if we are currently running on this runqueue and - * our priority decreased, or if we are not currently running on - * this runqueue and our priority is higher than the current's - */ - if (running) { - if (p->prio > oldprio) - resched_task(rq->curr); - } else - check_preempt_curr(rq, p, 0); + BUG(); } static unsigned int get_rr_interval_idle(struct rq *rq, struct task_struct *task)