1 files changed, 10 insertions, 2 deletions

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 04ab8243a13d..62a63b2b33dd 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2948,10 +2948,18 @@ tracing_entries_read(struct file *filp, char __user *ubuf,
                      size_t cnt, loff_t *ppos)
 {
         struct trace_array *tr = filp->private_data;
-        char buf[64];
+        char buf[96];
         int r;
 
-        r = sprintf(buf, "%lu\n", tr->entries >> 10);
+        mutex_lock(&trace_types_lock);
+        if (!ring_buffer_expanded)
+                r = sprintf(buf, "%lu (expanded: %lu)\n",
+                            tr->entries >> 10,
+                            trace_buf_size >> 10);
+        else
+                r = sprintf(buf, "%lu\n", tr->entries >> 10);
+        mutex_unlock(&trace_types_lock);
+
         return simple_read_from_buffer(ubuf, cnt, ppos, buf, r);
 }