Skip to contentSkip to conversation

sched: Simplify the idle scheduling class

tip:sched/core tip-bot for Peter Zijlstra 1 participant 1 message Jan 26, 2011

lore
Share & tools
lore
#0 lore raw
Commit-ID:  a8941d7ec81678fb69aea7183338175f112f3e0d
Gitweb:     http://git.kernel.org/tip/a8941d7ec81678fb69aea7183338175f112f3e0d
Author:     Peter Zijlstra <[email protected]>
AuthorDate: Tue, 25 Jan 2011 16:30:03 +0100
Committer:  Ingo Molnar <[email protected]>
CommitDate: Wed, 26 Jan 2011 12:33:22 +0100

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.

LKML-Reference: <new-submission>

---
 kernel/sched_idletask.c |   23 ++++-------------------
 1 files changed, 4 insertions(+), 19 deletions(-)
kernel/sched_idletask.c +4 -19
index 9fa0f40..41eb62a 100644
@@ -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)