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-rw-r--r--kernel/marker.c9
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,
671 entry->rcu_pending = 1; 671 entry->rcu_pending = 1;
672 /* write rcu_pending before calling the RCU callback */ 672 /* write rcu_pending before calling the RCU callback */
673 smp_wmb(); 673 smp_wmb();
674#ifdef CONFIG_PREEMPT_RCU
675 synchronize_sched(); /* Until we have the call_rcu_sched() */
676#endif
674 call_rcu(&entry->rcu, free_old_closure); 677 call_rcu(&entry->rcu, free_old_closure);
675end: 678end:
676 mutex_unlock(&markers_mutex); 679 mutex_unlock(&markers_mutex);
@@ -714,6 +717,9 @@ int marker_probe_unregister(const char *name,
714 entry->rcu_pending = 1; 717 entry->rcu_pending = 1;
715 /* write rcu_pending before calling the RCU callback */ 718 /* write rcu_pending before calling the RCU callback */
716 smp_wmb(); 719 smp_wmb();
720#ifdef CONFIG_PREEMPT_RCU
721 synchronize_sched(); /* Until we have the call_rcu_sched() */
722#endif
717 call_rcu(&entry->rcu, free_old_closure); 723 call_rcu(&entry->rcu, free_old_closure);
718 remove_marker(name); /* Ignore busy error message */ 724 remove_marker(name); /* Ignore busy error message */
719 ret = 0; 725 ret = 0;
@@ -792,6 +798,9 @@ int marker_probe_unregister_private_data(marker_probe_func *probe,
792 entry->rcu_pending = 1; 798 entry->rcu_pending = 1;
793 /* write rcu_pending before calling the RCU callback */ 799 /* write rcu_pending before calling the RCU callback */
794 smp_wmb(); 800 smp_wmb();
801#ifdef CONFIG_PREEMPT_RCU
802 synchronize_sched(); /* Until we have the call_rcu_sched() */
803#endif
795 call_rcu(&entry->rcu, free_old_closure); 804 call_rcu(&entry->rcu, free_old_closure);
796 remove_marker(entry->name); /* Ignore busy error message */ 805 remove_marker(entry->name); /* Ignore busy error message */
797end: 806end: