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perf stat: Move target check to loop control statement 

Check for target existence in loop control statement jointly external
asynchronous 'done' signal.

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/79037528-578c-af64-f06c-a644b7f5ba6a@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Alexey Budankov 2020-07-17 10:02:42 +03:00 committed by Arnaldo Carvalho de Melo
parent dece3a4d33
commit 7bb4ff05c0
1 changed files with 1 additions and 3 deletions
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4
tools/perf/builtin-stat.c
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@ -815,10 +815,8 @@ static int __run_perf_stat(int argc, const char **argv, int run_idx)
psignal(WTERMSIG(status), argv[0]);
} else {
enable_counters();
while (!done) {
while (!done && is_target_alive(&target, evsel_list->core.threads)) {
nanosleep(&ts, NULL);
if (!is_target_alive(&target, evsel_list->core.threads))
break;
if (timeout || handle_interval(interval, &times))
break;
}