Commit 2f65b44e authored by Stefan Hajnoczi's avatar Stefan Hajnoczi Committed by David S. Miller
Browse files

VSOCK: add full barrier between test cases 



See code comment for details.

Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9bb8a29d

tools/testing/vsock/util.c

+16 −2
Original line number Diff line number Diff line
@@ -161,10 +161,24 @@ void run_tests(const struct test_case *test_cases, 
		printf("%s...", test_cases[i].name);

		fflush(stdout);



		if (opts->mode == TEST_MODE_CLIENT)

		if (opts->mode == TEST_MODE_CLIENT) {

			/* Full barrier before executing the next test.  This

			 * ensures that client and server are executing the

			 * same test case.  In particular, it means whoever is

			 * faster will not see the peer still executing the

			 * last test.  This is important because port numbers

			 * can be used by multiple test cases.

			 */

			control_expectln("NEXT");

			control_writeln("NEXT");



			run = test_cases[i].run_client;

		else

		} else {

			control_writeln("NEXT");

			control_expectln("NEXT");



			run = test_cases[i].run_server;

		}



		if (run)

			run(opts);