[PATCH] sched: Fix hotplug

[Peter Zijlstra <peterz@infradead.org>]

The hot-unplug kstopmachine usage does a wakeup after deactivating the
cpu, hence we cannot use cpu_active() here but must rely on the good
olde online.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
 kernel/sched.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 720df10..0ac4fa5 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2348,7 +2348,7 @@ int select_task_rq(struct task_struct *p, int sd_flags, int wake_flags)
 	 *   not worry about this generic constraint ]
 	 */
 	if (unlikely(!cpumask_test_cpu(cpu, &p->cpus_allowed) ||
-		     !cpu_active(cpu)))
+		     !cpu_online(cpu)))
 		cpu = select_fallback_rq(task_cpu(p), p);
 
 	return cpu;