Merge "perf_event_open02: set process as RT during Setup stage" into main am: a7a24f319b Original change: https://android-review.googlesource.com/c/platform/external/ltp/+/3342199 Change-Id: Iefb81c87787bbf9fbe1cffcb1cdddf32f52b3454 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

diff --git a/testcases/kernel/syscalls/perf_event_open/perf_event_open02.c b/testcases/kernel/syscalls/perf_event_open/perf_event_open02.c
index bf6291d..27cc83c 100644
--- a/testcases/kernel/syscalls/perf_event_open/perf_event_open02.c
+++ b/testcases/kernel/syscalls/perf_event_open/perf_event_open02.c

@@ -198,6 +198,12 @@
 {
 	int i;
 	struct perf_event_attr tsk_event, hw_event;
+	struct sched_param sparam = {.sched_priority = 1};
+
+	if (sched_setscheduler(0, SCHED_FIFO, &sparam)) {
+		tst_brk(TBROK | TERRNO,
+			"sched_setscheduler(0, SCHED_FIFO, ...) failed");
+	}
 
 	for (i = 0; i < MAX_CTRS; i++) {
 		hwfd[i] = -1;
@@ -271,12 +277,7 @@
 	unsigned long long vtsum = 0, vhsum = 0;
 	int i;
 	double ratio;
-	struct sched_param sparam = {.sched_priority = 1};
-
-	if (sched_setscheduler(0, SCHED_FIFO, &sparam)) {
-		tst_brk(TBROK | TERRNO,
-			"sched_setscheduler(0, SCHED_FIFO, ...) failed");
-	}
+	struct sched_param sparam = {.sched_priority = 0};
 
 	all_counters_set(PR_TASK_PERF_EVENTS_ENABLE);
 	do_work(8);