perf top: Set the 'session_done' volatile variable when exiting

So we can get out of hist processing ASAP on user request.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/n/tip-r8aufbgbixr2f85s3wcoaw9v@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index aad58643102eda7cf48b6c5b28a20e9ecfd8e782..50ec01eb7f57e2326e6d633b4e26710a9dfba2df 100644 (file)
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -577,6 +577,12 @@ static void perf_top__sort_new_samples(void *arg)
        perf_top__reset_sample_counters(t);
 }
 
+static void stop_top(void)
+{
+       session_done = 1;
+       done = 1;
+}
+
 static void *display_thread_tui(void *arg)
 {
        struct perf_evsel *pos;
@@ -613,13 +619,13 @@ static void *display_thread_tui(void *arg)
                                      !top->record_opts.overwrite,
                                      &top->annotation_opts);
 
-       done = 1;
+       stop_top();
        return NULL;
 }
 
 static void display_sig(int sig __maybe_unused)
 {
-       done = 1;
+       stop_top();
 }
 
 static void display_setup_sig(void)
@@ -672,7 +678,7 @@ repeat:
 
                        if (perf_top__handle_keypress(top, c))
                                goto repeat;
-                       done = 1;
+                       stop_top();
                }
        }