Test the new MEMBARRIER_CMD_SHARED_EXPEDITED and
MEMBARRIER_CMD_REGISTER_SHARED_EXPEDITED commands.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
CC: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
CC: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CC: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CC: Boqun Feng <boqun.feng@xxxxxxxxx>
CC: Andrew Hunter <ahh@xxxxxxxxxx>
CC: Maged Michael <maged.michael@xxxxxxxxx>
CC: Avi Kivity <avi@xxxxxxxxxxxx>
CC: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
CC: Paul Mackerras <paulus@xxxxxxxxx>
CC: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
CC: Dave Watson <davejwatson@xxxxxx>
CC: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
CC: Will Deacon <will.deacon@xxxxxxx>
CC: Andy Lutomirski <luto@xxxxxxxxxx>
CC: Alice Ferrazzi <alice.ferrazzi@xxxxxxxxx>
CC: Paul Elder <paul.elder@xxxxxxxx>
CC: linux-kselftest@xxxxxxxxxxxxxxx
CC: linux-arch@xxxxxxxxxxxxxxx
---
.../testing/selftests/membarrier/membarrier_test.c | 47 ++++++++++++++++++++++
1 file changed, 47 insertions(+)
diff --git a/tools/testing/selftests/membarrier/membarrier_test.c b/tools/testing/selftests/membarrier/membarrier_test.c
index a0eae8d51e72..c699227f4d9a 100644
--- a/tools/testing/selftests/membarrier/membarrier_test.c
+++ b/tools/testing/selftests/membarrier/membarrier_test.c
@@ -189,6 +189,40 @@ static int test_membarrier_private_expedited_sync_core_success(void)
return 0;
}
+static int test_membarrier_register_shared_expedited_success(void)
+{
+ int cmd = MEMBARRIER_CMD_REGISTER_SHARED_EXPEDITED, flags = 0;
+ const char *test_name = "sys membarrier MEMBARRIER_CMD_REGISTER_SHARED_EXPEDITED";
+
+ if (sys_membarrier(cmd, flags) != 0) {
+ ksft_exit_fail_msg(
+ "%s test: flags = %d, errno = %d\n",
+ test_name, flags, errno);
+ }
+
+ ksft_test_result_pass(
+ "%s test: flags = %d\n",
+ test_name, flags);
+ return 0;
+}
+
+static int test_membarrier_shared_expedited_success(void)
+{
+ int cmd = MEMBARRIER_CMD_SHARED_EXPEDITED, flags = 0;
+ const char *test_name = "sys membarrier MEMBARRIER_CMD_SHARED_EXPEDITED";
+
+ if (sys_membarrier(cmd, flags) != 0) {
+ ksft_exit_fail_msg(
+ "%s test: flags = %d, errno = %d\n",
+ test_name, flags, errno);
+ }
+
+ ksft_test_result_pass(
+ "%s test: flags = %d\n",
+ test_name, flags);
+ return 0;
+}
+
static int test_membarrier(void)
{
int status;
@@ -227,6 +261,19 @@ static int test_membarrier(void)
if (status)
return status;
}
+ /*
+ * It is valid to send a shared membarrier from a non-registered
+ * process.
+ */
+ status = test_membarrier_shared_expedited_success();
+ if (status)
+ return status;
+ status = test_membarrier_register_shared_expedited_success();
+ if (status)
+ return status;
+ status = test_membarrier_shared_expedited_success();
+ if (status)
+ return status;
return 0;
}
--
2.11.0
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