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-rw-r--r--kernel/tracepoint.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index db39961a0d03..f2b7c28a4708 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -356,6 +356,8 @@ int tracepoint_probe_register(const char *name, void *probe)
mutex_lock(&tracepoints_mutex);
entry = get_tracepoint(name);
WARN_ON(!entry);
+ if (entry->rcu_pending)
+ rcu_barrier_sched();
tracepoint_entry_free_old(entry, old);
end:
mutex_unlock(&tracepoints_mutex);
@@ -392,6 +394,8 @@ int tracepoint_probe_unregister(const char *name, void *probe)
entry = get_tracepoint(name);
if (!entry)
goto end;
+ if (entry->rcu_pending)
+ rcu_barrier_sched();
tracepoint_entry_free_old(entry, old);
remove_tracepoint(name); /* Ignore busy error message */
ret = 0;