Merge branch 'linux-2.6'

1 files changed, 9 insertions, 0 deletions

diff --git a/kernel/marker.c b/kernel/marker.c
index 041c33e3e95c..005b95954593 100644
--- a/kernel/marker.c
+++ b/kernel/marker.c
@@ -671,6 +671,9 @@ int marker_probe_register(const char *name, const char *format,
         entry->rcu_pending = 1;
         /* write rcu_pending before calling the RCU callback */
         smp_wmb();
+#ifdef CONFIG_PREEMPT_RCU
+        synchronize_sched();    /* Until we have the call_rcu_sched() */
+#endif
         call_rcu(&entry->rcu, free_old_closure);
 end:
         mutex_unlock(&markers_mutex);
@@ -714,6 +717,9 @@ int marker_probe_unregister(const char *name,
         entry->rcu_pending = 1;
         /* write rcu_pending before calling the RCU callback */
         smp_wmb();
+#ifdef CONFIG_PREEMPT_RCU
+        synchronize_sched();    /* Until we have the call_rcu_sched() */
+#endif
         call_rcu(&entry->rcu, free_old_closure);
         remove_marker(name);    /* Ignore busy error message */
         ret = 0;
@@ -792,6 +798,9 @@ int marker_probe_unregister_private_data(marker_probe_func *probe,
         entry->rcu_pending = 1;
         /* write rcu_pending before calling the RCU callback */
         smp_wmb();
+#ifdef CONFIG_PREEMPT_RCU
+        synchronize_sched();    /* Until we have the call_rcu_sched() */
+#endif
         call_rcu(&entry->rcu, free_old_closure);
         remove_marker(entry->name);     /* Ignore busy error message */
 end: