Commit 9b9be782 authored by Mark Brown's avatar Mark Brown Committed by Catalin Marinas
Browse files

kselftest/arm64: Ensure stable names for GCS stress test results 



The GCS stress test program currently uses the PID of the threads it
creates in the test names it reports, resulting in unstable test names
between runs. Fix this by using a thread number instead.

Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241011-arm64-gcs-stress-stable-name-v1-1-4950f226218e@kernel.org


Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 48f8d9ce

tools/testing/selftests/arm64/gcs/gcs-stress.c

+3 −3
Original line number Diff line number Diff line
@@ -56,7 +56,7 @@ static int num_processors(void) 
	return nproc;

}



static void start_thread(struct child_data *child)

static void start_thread(struct child_data *child, int id)

{

	int ret, pipefd[2], i;

	struct epoll_event ev;
@@ -132,7 +132,7 @@ static void start_thread(struct child_data *child) 
		ev.events = EPOLLIN | EPOLLHUP;

		ev.data.ptr = child;



		ret = asprintf(&child->name, "Thread-%d", child->pid);

		ret = asprintf(&child->name, "Thread-%d", id);

		if (ret == -1)

			ksft_exit_fail_msg("asprintf() failed\n");
@@ -437,7 +437,7 @@ int main(int argc, char **argv) 
				   tests);



	for (i = 0; i < gcs_threads; i++)

		start_thread(&children[i]);

		start_thread(&children[i], i);



	/*

	 * All children started, close the startup pipe and let them