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Diffstat (limited to 'kernel')
-rw-r--r--kernel/marker.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/marker.c b/kernel/marker.c
index 041c33e3e95..005b9595459 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: