ftrace: reset selftests
The tests may leave stuff in the buffers. This resets the buffers
after each test is run. If a test fails, it does not reset the
buffer to avoid touching a buffer that is corrupted.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 8755a43..6580e7e 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -289,6 +289,13 @@
printk(KERN_CONT "FAILED!\n");
goto out;
}
+ /* Only reset on passing, to avoid touching corrupted buffers */
+ for_each_possible_cpu(i) {
+ data = tr->data[i];
+ if (!head_page(data))
+ continue;
+ tracing_reset(data);
+ }
printk(KERN_CONT "PASSED\n");
}
#endif
