diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2019-12-18 19:07:02 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-12-20 21:09:21 -0800 |
| commit | 2f65b44e199c6521be8dbc7458250c74a86ce2aa (patch) | |
| tree | ad5f4de841816b69a84d540e0376507b91c984ce /tools | |
| parent | 9bb8a29d28e01bf7dcdb67f71edbca9d3826d004 (diff) | |
VSOCK: add full barrier between test cases
See code comment for details.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/vsock/util.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/tools/testing/vsock/util.c b/tools/testing/vsock/util.c index f838bcee3589..4280a56ba677 100644 --- a/tools/testing/vsock/util.c +++ b/tools/testing/vsock/util.c @@ -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); |