linux-kernel - [PATCH v9 08/15] perf stat: factor out body of event handling loop for fork case

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Message-ID: <15df730e-d946-c7f8-5fb3-67c95596332f@linux.intel.com>
Date:   Fri, 3 Jul 2020 10:45:40 +0300
From:   Alexey Budankov <alexey.budankov@...ux.intel.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>
Cc:     Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH v9 08/15] perf stat: factor out body of event handling loop
 for fork case


Factor out body of event handling loop for fork case reusing
handle_interval() function.

Signed-off-by: Alexey Budankov <alexey.budankov@...ux.intel.com>
---
 tools/perf/builtin-stat.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 3baf00482666..3e11f854ffc8 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -791,13 +791,11 @@ static int __run_perf_stat(int argc, const char **argv, int run_idx)
 		enable_counters();
 
 		if (interval || timeout) {
-			while (!waitpid(child_pid, &status, WNOHANG)) {
+			while (!stop && !waitpid(child_pid, &status, WNOHANG)) {
 				nanosleep(&ts, NULL);
 				if (timeout)
 					break;
-				process_interval();
-				if (interval_count && !(--times))
-					break;
+				stop = handle_interval(interval, &times);
 			}
 		}
 		if (child_pid != -1) {
-- 
2.24.1