sched: CPU remove deadlock fix

[linux-2.6-omap-h63xx.git] / kernel / sched.c

diff --git a/kernel/sched.c b/kernel/sched.c
index b7480fb5c3dc21a7bf6513a978cf0ed2e8c19a8f..e4bb1dd7b308fce6f47e736b70425f4bc3482c0a 100644 (file)
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -6587,7 +6587,9 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
                        req = list_entry(rq->migration_queue.next,
                                         struct migration_req, list);
                        list_del_init(&req->list);
+                       spin_unlock_irq(&rq->lock);
                        complete(&req->done);
+                       spin_lock_irq(&rq->lock);
                }
                spin_unlock_irq(&rq->lock);
                break;