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perf trace: No need to enable evsels for workload started from perf 

As they will have perf_event_attr.enable_on_exec set, starting as soon
as we exec() the workload.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-vmj3f6o3vxrg7mrdipts09li@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2015-02-03 13:25:39 -03:00
parent aa1aac17a1
commit f7aa222ff3
1 changed files with 2 additions and 2 deletions
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4
tools/perf/builtin-trace.c
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@ -2109,10 +2109,10 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
if (err < 0)
goto out_error_mmap;
perf_evlist__enable(evlist);
if (forks)
perf_evlist__start_workload(evlist);
else
perf_evlist__enable(evlist);
trace->multiple_threads = evlist->threads->map[0] == -1 || evlist->threads->nr > 1;
again: