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| author |   Steven Rostedt <srostedt@redhat.com> | 2008-05-12 21:20:45 +0200 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2008-05-23 20:41:29 +0200 |
| commit | 1d4db00a5e30c7b8f8dc2a1b19e886fd942be143 (patch) | |
| tree | 3a1619ad932674ccaccbf489949c4a14c0e6a494 /kernel/trace/trace.c | |
| parent | ftrace: disable all tracers on corrupted buffer (diff) | |
| download | linux-dev-1d4db00a5e30c7b8f8dc2a1b19e886fd942be143.tar.xz linux-dev-1d4db00a5e30c7b8f8dc2a1b19e886fd942be143.zip | |
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>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 8755a4370484..6580e7ed04be 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -289,6 +289,13 @@ int register_tracer(struct tracer *type) 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 |