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| author | Markus Metzger <markus.t.metzger@intel.com> | 2009-01-19 09:33:31 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-20 12:03:55 (GMT) |
| commit | e23b8ad83430a6fdfbdbfac365f5b0312dd57f10 (patch) | |
| tree | 3a3d623f800880dfc37a12ddb35a9887dacb98fe | |
| parent | b1818748b0cf9427e48acf9713295e829a0d715f (diff) | |
| download | linux-e23b8ad83430a6fdfbdbfac365f5b0312dd57f10.tar.xz | |
x86, ftrace, hw-branch-tracer: reset trace buffer on close
Reset the ftrace buffer on close. Since we use cyclic buffers, the
trace is not contiguous, anyway.
Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/trace/trace_hw_branches.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/trace/trace_hw_branches.c b/kernel/trace/trace_hw_branches.c index e56df2c..372b47a 100644 --- a/kernel/trace/trace_hw_branches.c +++ b/kernel/trace/trace_hw_branches.c @@ -274,6 +274,11 @@ static void trace_bts_prepare(struct trace_iterator *iter) mutex_unlock(&bts_tracer_mutex); } +static void trace_bts_close(struct trace_iterator *iter) +{ + tracing_reset_online_cpus(iter->tr); +} + void trace_hw_branch_oops(void) { mutex_lock(&bts_tracer_mutex); @@ -292,7 +297,8 @@ struct tracer bts_tracer __read_mostly = .print_line = bts_trace_print_line, .start = bts_trace_start, .stop = bts_trace_stop, - .open = trace_bts_prepare + .open = trace_bts_prepare, + .close = trace_bts_close }; __init static int init_bts_trace(void) |