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authorSteven Rostedt <rostedt@goodmis.org>2008-07-11 02:58:14 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-11 15:49:21 +0200
commit26bc83f4cb911a0b4dabfe23b700aaf3235f2955 (patch)
treed68f36b2373164af899678eada1922dbdbfbd13a
parentftrace: start wakeup tracing after setting function tracer (diff)
downloadlinux-26bc83f4cb911a0b4dabfe23b700aaf3235f2955.tar.xz
linux-26bc83f4cb911a0b4dabfe23b700aaf3235f2955.zip
ftrace: use current CPU for function startup
This is more of a clean up. Currently the function tracer initializes the tracer with which ever CPU was last used for tracing. This value isn't realy useful for function tracing, but at least it should be something other than a random number. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Cc: Steven Rostedt <srostedt@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/trace/trace_functions.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c
index 7ee7dcd76b7d..312144897970 100644
--- a/kernel/trace/trace_functions.c
+++ b/kernel/trace/trace_functions.c
@@ -28,7 +28,10 @@ static void function_reset(struct trace_array *tr)
static void start_function_trace(struct trace_array *tr)
{
+ tr->cpu = get_cpu();
function_reset(tr);
+ put_cpu();
+
tracing_start_cmdline_record();
tracing_start_function_trace();
}