---

yaml
---
r: 121079
b: refs/heads/master
c: 769c48e
h: refs/heads/master
i:
  121077: 595a3a8
  121075: 273e712
  121071: a3e5541
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7d5222a6afa4e429f55df8c086adb747837cbdf5
+refs/heads/master: 769c48eb2530c5c1a393e2c82063f4f050571d24

trunk/kernel/trace/trace_selftest.c

@@ -257,6 +257,19 @@ trace_selftest_startup_preemptoff(struct tracer *trace, struct trace_array *tr)
 	unsigned long count;
 	int ret;
 
+	/*
+	 * Now that the big kernel lock is no longer preemptable,
+	 * and this is called with the BKL held, it will always
+	 * fail. If preemption is already disabled, simply
+	 * pass the test. When the BKL is removed, or becomes
+	 * preemptible again, we will once again test this,
+	 * so keep it in.
+	 */
+	if (preempt_count()) {
+		printk(KERN_CONT "can not test ... force ");
+		return 0;
+	}
+
 	/* start the tracing */
 	trace->init(tr);
 	/* reset the max latency */
@@ -293,6 +306,19 @@ trace_selftest_startup_preemptirqsoff(struct tracer *trace, struct trace_array *
 	unsigned long count;
 	int ret;
 
+	/*
+	 * Now that the big kernel lock is no longer preemptable,
+	 * and this is called with the BKL held, it will always
+	 * fail. If preemption is already disabled, simply
+	 * pass the test. When the BKL is removed, or becomes
+	 * preemptible again, we will once again test this,
+	 * so keep it in.
+	 */
+	if (preempt_count()) {
+		printk(KERN_CONT "can not test ... force ");
+		return 0;
+	}
+
 	/* start the tracing */
 	trace->init(tr);