X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=kernel%2Fsmpboot.c;h=4a5c6e73ecd41e7107a89b098f4eea9fefc647f1;hb=63ae602cea637ee4a6490d940c0da5d78bd0bbe0;hp=fc0d8270f69ed412947df06890f80602f68f6ff6;hpb=521f3970853a4b2ff7f833763532bdba2ea11257;p=cascardo%2Flinux.git

diff --git a/kernel/smpboot.c b/kernel/smpboot.c
index fc0d8270f69e..4a5c6e73ecd4 100644
--- a/kernel/smpboot.c
+++ b/kernel/smpboot.c
@@ -122,12 +122,12 @@ static int smpboot_thread_fn(void *data)
 
 		if (kthread_should_park()) {
 			__set_current_state(TASK_RUNNING);
+			preempt_enable();
 			if (ht->park && td->status == HP_THREAD_ACTIVE) {
 				BUG_ON(td->cpu != smp_processor_id());
 				ht->park(td->cpu);
 				td->status = HP_THREAD_PARKED;
 			}
-			preempt_enable();
 			kthread_parkme();
 			/* We might have been woken for stop */
 			continue;
@@ -186,6 +186,11 @@ __smpboot_create_thread(struct smp_hotplug_thread *ht, unsigned int cpu)
 		kfree(td);
 		return PTR_ERR(tsk);
 	}
+	/*
+	 * Park the thread so that it could start right on the CPU
+	 * when it is available.
+	 */
+	kthread_park(tsk);
 	get_task_struct(tsk);
 	*per_cpu_ptr(ht->store, cpu) = tsk;
 	if (ht->create) {