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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2009-02-05 18:02:00 -0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-06 01:01:41 +0100 |
| commit | b6f11df26fdc28324cf9c9e3b77f2dc985c1bb13 (patch) | |
| tree | e03b4b8b9dad8a2d3f81574c10aab8fb7a779cbb /kernel/trace/trace.c | |
| parent | 51a763dd84253bab1d0a1e68e11a7753d1b702ca (diff) | |
| download | lwn-b6f11df26fdc28324cf9c9e3b77f2dc985c1bb13.tar.gz lwn-b6f11df26fdc28324cf9c9e3b77f2dc985c1bb13.zip | |
trace: Call tracing_reset_online_cpus before tracer->init()
Impact: cleanup
To make it easy for ftrace plugin writers, as this was open coded in
the existing plugins
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Frédéric Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 8fad3776e843..ef4dbac95568 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2171,6 +2171,12 @@ tracing_set_trace_read(struct file *filp, char __user *ubuf, return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); } +int tracer_init(struct tracer *t, struct trace_array *tr) +{ + tracing_reset_online_cpus(tr); + return t->init(tr); +} + static int tracing_set_tracer(const char *buf) { struct trace_array *tr = &global_trace; @@ -2195,7 +2201,7 @@ static int tracing_set_tracer(const char *buf) current_trace = t; if (t->init) { - ret = t->init(tr); + ret = tracer_init(t, tr); if (ret) goto out; } |