[LTP] [PATCH 5/6] sched_football: Add prctrl calls to set thread comms

[John Stultz via ltp <ltp@lists.linux.it>]

Make it easier to follow whats happening in traces by setting
the thread comms to be more descriptive.

Cc: kernel-team@android.com
Cc: Darren Hart <darren@os.amperecomputing.com>
Signed-off-by: John Stultz <jstultz@google.com>
---
 testcases/realtime/func/sched_football/sched_football.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/testcases/realtime/func/sched_football/sched_football.c b/testcases/realtime/func/sched_football/sched_football.c
index 7686ce3e6..45fbf6766 100644
--- a/testcases/realtime/func/sched_football/sched_football.c
+++ b/testcases/realtime/func/sched_football/sched_football.c
@@ -69,6 +69,7 @@
 #include <errno.h>
 #include <sys/syscall.h>
 #include <unistd.h>
+#include <sys/prctl.h>
 #include <sys/time.h>
 #include <librttest.h>
 
@@ -126,6 +127,7 @@ unsigned long long ts_delta(struct timespec *start, struct timespec *stop)
 /* These are fans running across the field. They're trying to interrupt/distract everyone */
 void *thread_fan(void *arg)
 {
+	prctl(PR_SET_NAME, "crazy_fan", 0, 0, 0);
 	atomic_inc(&players_ready);
 	/*occasionally wake up and run across the field */
 	while (1) {
@@ -146,6 +148,7 @@ void *thread_fan(void *arg)
 /* This is the defensive team. They're trying to block the offense */
 void *thread_defense(void *arg)
 {
+	prctl(PR_SET_NAME, "defense", 0, 0, 0);
 	atomic_inc(&players_ready);
 	/*keep the ball from being moved */
 	while (1) {
@@ -156,6 +159,7 @@ void *thread_defense(void *arg)
 /* This is the offensive team. They're trying to move the ball */
 void *thread_offense(void *arg)
 {
+	prctl(PR_SET_NAME, "offense", 0, 0, 0);
 	atomic_inc(&players_ready);
 	while (1) {
 		atomic_inc(&the_ball);	/* move the ball ahead one yard */
@@ -168,6 +172,7 @@ int referee(int game_length)
 	struct timeval start, now;
 	int final_ball;
 
+	prctl(PR_SET_NAME, "referee", 0, 0, 0);
 	printf("Game On (%d seconds)!\n", game_length);
 
 	gettimeofday(&start, NULL);
-- 
2.44.0.769.g3c40516874-goog


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