linux-kernel - [PATCH v2 5/5] selftests: futex2: Test futex

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Date:   Sat,  4 Sep 2021 20:11:59 -0300
From:   André Almeida <andrealmeid@...labora.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Darren Hart <dvhart@...radead.org>,
        linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     kernel@...labora.com, krisman@...labora.com,
        linux-api@...r.kernel.org, libc-alpha@...rceware.org,
        mtk.manpages@...il.com, Davidlohr Bueso <dave@...olabs.net>,
        Arnd Bergmann <arnd@...db.de>,
        André Almeida <andrealmeid@...labora.com>
Subject: [PATCH v2 5/5] selftests: futex2: Test futex_waitv timeout

Test if the futex_waitv timeout is working as expected, using the
supported clockid options.

Signed-off-by: André Almeida <andrealmeid@...labora.com>
---
 .../futex/functional/futex_wait_timeout.c     | 21 ++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/futex/functional/futex_wait_timeout.c b/tools/testing/selftests/futex/functional/futex_wait_timeout.c
index 1f8f6daaf1e7..4cdada0fcb81 100644
--- a/tools/testing/selftests/futex/functional/futex_wait_timeout.c
+++ b/tools/testing/selftests/futex/functional/futex_wait_timeout.c
@@ -17,6 +17,7 @@
 
 #include <pthread.h>
 #include "futextest.h"
+#include "futex2test.h"
 #include "logging.h"
 
 #define TEST_NAME "futex-wait-timeout"
@@ -96,6 +97,12 @@ int main(int argc, char *argv[])
 	struct timespec to;
 	pthread_t thread;
 	int c;
+	struct futex_waitv waitv = {
+			.uaddr = (uintptr_t)&f1,
+			.val = f1,
+			.flags = FUTEX_32,
+			.__reserved = 0
+		};
 
 	while ((c = getopt(argc, argv, "cht:v:")) != -1) {
 		switch (c) {
@@ -118,7 +125,7 @@ int main(int argc, char *argv[])
 	}
 
 	ksft_print_header();
-	ksft_set_plan(7);
+	ksft_set_plan(9);
 	ksft_print_msg("%s: Block on a futex and wait for timeout\n",
 	       basename(argv[0]));
 	ksft_print_msg("\tArguments: timeout=%ldns\n", timeout_ns);
@@ -175,6 +182,18 @@ int main(int argc, char *argv[])
 	res = futex_lock_pi(&futex_pi, NULL, 0, FUTEX_CLOCK_REALTIME);
 	test_timeout(res, &ret, "futex_lock_pi invalid timeout flag", ENOSYS);
 
+	/* futex_waitv with CLOCK_MONOTONIC */
+	if (futex_get_abs_timeout(CLOCK_MONOTONIC, &to, timeout_ns))
+		return RET_FAIL;
+	res = futex_waitv(&waitv, 1, 0, &to);
+	test_timeout(res, &ret, "futex_waitv monotonic", ETIMEDOUT);
+
+	/* futex_waitv with CLOCK_REALTIME */
+	if (futex_get_abs_timeout(CLOCK_REALTIME, &to, timeout_ns))
+		return RET_FAIL;
+	res = futex_waitv(&waitv, 1, FUTEX_CLOCK_REALTIME, &to);
+	test_timeout(res, &ret, "futex_waitv realtime", ETIMEDOUT);
+
 	ksft_print_cnts();
 	return ret;
 }
-- 
2.33.0