1 files changed, 8 insertions, 0 deletions

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 769dfd00fc85..ca624df73591 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -141,6 +141,10 @@ ftrace_event_write(struct file *file, const char __user *ubuf,
         if (!cnt || cnt < 0)
                 return 0;
 
+        ret = tracing_update_buffers();
+        if (ret < 0)
+                return ret;
+
         ret = get_user(ch, ubuf++);
         if (ret)
                 return ret;
@@ -331,6 +335,10 @@ event_enable_write(struct file *filp, const char __user *ubuf, size_t cnt,
         if (ret < 0)
                 return ret;
 
+        ret = tracing_update_buffers();
+        if (ret < 0)
+                return ret;
+
         switch (val) {
         case 0:
         case 1: