---

yaml --- r: 245584 b: refs/heads/master c: 8f42ced h: refs/heads/master v: v3
git-mirror · Apr 14, 2011 · 5e73bf7 · 5e73bf7
1 parent cdad680
commit 5e73bf7
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Showing 2 changed files with 6 additions and 11 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ab2515c4b98f7bc4fa11cad9fa0f811d63a72a26
+refs/heads/master: 8f42ced974df7d5af2de4cf5ea21fe978c7e4478
diff --git a/trunk/kernel/sched.c b/trunk/kernel/sched.c
@@ -3465,27 +3465,22 @@ void sched_exec(void)
 {
 	struct task_struct *p = current;
 	unsigned long flags;
-	struct rq *rq;
 	int dest_cpu;
 
-	rq = task_rq_lock(p, &flags);
+	raw_spin_lock_irqsave(&p->pi_lock, flags);
 	dest_cpu = p->sched_class->select_task_rq(p, SD_BALANCE_EXEC, 0);
 	if (dest_cpu == smp_processor_id())
 		goto unlock;
 
-	/*
-	 * select_task_rq() can race against ->cpus_allowed
-	 */
-	if (cpumask_test_cpu(dest_cpu, &p->cpus_allowed) &&
-	    likely(cpu_active(dest_cpu)) && need_migrate_task(p)) {
+	if (likely(cpu_active(dest_cpu))) {
 		struct migration_arg arg = { p, dest_cpu };
 
-		task_rq_unlock(rq, p, &flags);
-		stop_one_cpu(cpu_of(rq), migration_cpu_stop, &arg);
+		raw_spin_unlock_irqrestore(&p->pi_lock, flags);
+		stop_one_cpu(task_cpu(p), migration_cpu_stop, &arg);
 		return;
 	}
 unlock:
-	task_rq_unlock(rq, p, &flags);
+	raw_spin_unlock_irqrestore(&p->pi_lock, flags);
 }
 
 #endif