---

yaml --- r: 339000 b: refs/heads/master c: 60303ed h: refs/heads/master v: v3
git-mirror · Nov 2, 2012 · 9ad6f61 · 9ad6f61
1 parent 188eb58
commit 9ad6f61
Show file tree

Hide file tree

Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 60efc15ae96c7aace8060411b0d5add20e1ab21e
+refs/heads/master: 60303ed3f4b9332b9aa9bc17c68bc174e7343e2d
diff --git a/trunk/kernel/trace/trace.c b/trunk/kernel/trace/trace.c
@@ -4073,6 +4073,14 @@ static ssize_t tracing_clock_write(struct file *filp, const char __user *ubuf,
 	if (max_tr.buffer)
 		ring_buffer_set_clock(max_tr.buffer, trace_clocks[i].func);
 
+	/*
+	 * New clock may not be consistent with the previous clock.
+	 * Reset the buffer so that it doesn't have incomparable timestamps.
+	 */
+	tracing_reset_online_cpus(&global_trace);
+	if (max_tr.buffer)
+		tracing_reset_online_cpus(&max_tr);
+
 	mutex_unlock(&trace_types_lock);
 
 	*fpos += cnt;