X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=kernel%2Frcupreempt.c;h=5d59e850fb71f6f58b854cdbd0a1f1792f59c8ad;hb=b54fc8dd2c43888f2754505cca2b6e88604a8ffa;hp=f9dc8f3720f67ae977628f76f250d0ed8b05b4d5;hpb=ac8cc0fa5395fe2278e305a4cbed48e90d88d878;p=mv-sheeva.git

diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c
index f9dc8f3720f..5d59e850fb7 100644
--- a/kernel/rcupreempt.c
+++ b/kernel/rcupreempt.c
@@ -1177,7 +1177,19 @@ EXPORT_SYMBOL_GPL(call_rcu_sched);
  * in -rt this does -not- necessarily result in all currently executing
  * interrupt -handlers- having completed.
  */
-synchronize_rcu_xxx(__synchronize_sched, call_rcu_sched)
+void __synchronize_sched(void)
+{
+	struct rcu_synchronize rcu;
+
+	if (num_online_cpus() == 1)
+		return;  /* blocking is gp if only one CPU! */
+
+	init_completion(&rcu.completion);
+	/* Will wake me after RCU finished. */
+	call_rcu_sched(&rcu.head, wakeme_after_rcu);
+	/* Wait for it. */
+	wait_for_completion(&rcu.completion);
+}
 EXPORT_SYMBOL_GPL(__synchronize_sched);
 
 /*