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Message-ID: <20241213193511.457338-20-zfigura@codeweavers.com>
Date: Fri, 13 Dec 2024 13:35:00 -0600
From: Elizabeth Figura <zfigura@...eweavers.com>
To: Arnd Bergmann <arnd@...db.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jonathan Corbet <corbet@....net>,
Shuah Khan <shuah@...nel.org>
Cc: linux-kernel@...r.kernel.org,
linux-api@...r.kernel.org,
wine-devel@...ehq.org,
André Almeida <andrealmeid@...lia.com>,
Wolfram Sang <wsa@...nel.org>,
Arkadiusz Hiler <ahiler@...eweavers.com>,
Peter Zijlstra <peterz@...radead.org>,
Andy Lutomirski <luto@...nel.org>,
linux-doc@...r.kernel.org,
linux-kselftest@...r.kernel.org,
Randy Dunlap <rdunlap@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Will Deacon <will@...nel.org>,
Waiman Long <longman@...hat.com>,
Boqun Feng <boqun.feng@...il.com>,
Elizabeth Figura <zfigura@...eweavers.com>
Subject: [PATCH v7 19/30] selftests: ntsync: Add some tests for NTSYNC_IOC_WAIT_ALL.
Test basic synchronous functionality of NTSYNC_IOC_WAIT_ALL, and when objects
are considered simultaneously signaled.
Signed-off-by: Elizabeth Figura <zfigura@...eweavers.com>
---
.../testing/selftests/drivers/ntsync/ntsync.c | 93 ++++++++++++++++++-
1 file changed, 91 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/drivers/ntsync/ntsync.c b/tools/testing/selftests/drivers/ntsync/ntsync.c
index 9781a74253ee..aba11eaf9a7c 100644
--- a/tools/testing/selftests/drivers/ntsync/ntsync.c
+++ b/tools/testing/selftests/drivers/ntsync/ntsync.c
@@ -73,7 +73,8 @@ static int unlock_mutex(int mutex, __u32 owner, __u32 *count)
return ret;
}
-static int wait_any(int fd, __u32 count, const int *objs, __u32 owner, __u32 *index)
+static int wait_objs(int fd, unsigned long request, __u32 count,
+ const int *objs, __u32 owner, __u32 *index)
{
struct ntsync_wait_args args = {0};
struct timespec timeout;
@@ -86,11 +87,21 @@ static int wait_any(int fd, __u32 count, const int *objs, __u32 owner, __u32 *in
args.objs = (uintptr_t)objs;
args.owner = owner;
args.index = 0xdeadbeef;
- ret = ioctl(fd, NTSYNC_IOC_WAIT_ANY, &args);
+ ret = ioctl(fd, request, &args);
*index = args.index;
return ret;
}
+static int wait_any(int fd, __u32 count, const int *objs, __u32 owner, __u32 *index)
+{
+ return wait_objs(fd, NTSYNC_IOC_WAIT_ANY, count, objs, owner, index);
+}
+
+static int wait_all(int fd, __u32 count, const int *objs, __u32 owner, __u32 *index)
+{
+ return wait_objs(fd, NTSYNC_IOC_WAIT_ALL, count, objs, owner, index);
+}
+
TEST(semaphore_state)
{
struct ntsync_sem_args sem_args;
@@ -443,4 +454,82 @@ TEST(test_wait_any)
close(fd);
}
+TEST(test_wait_all)
+{
+ struct ntsync_mutex_args mutex_args = {0};
+ struct ntsync_sem_args sem_args = {0};
+ __u32 owner, index, count;
+ int objs[2], fd, ret;
+
+ fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+ ASSERT_LE(0, fd);
+
+ sem_args.count = 2;
+ sem_args.max = 3;
+ objs[0] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
+ EXPECT_LE(0, objs[0]);
+
+ mutex_args.owner = 0;
+ mutex_args.count = 0;
+ objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+ EXPECT_LE(0, objs[1]);
+
+ ret = wait_all(fd, 2, objs, 123, &index);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ(0, index);
+ check_sem_state(objs[0], 1, 3);
+ check_mutex_state(objs[1], 1, 123);
+
+ ret = wait_all(fd, 2, objs, 456, &index);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(ETIMEDOUT, errno);
+ check_sem_state(objs[0], 1, 3);
+ check_mutex_state(objs[1], 1, 123);
+
+ ret = wait_all(fd, 2, objs, 123, &index);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ(0, index);
+ check_sem_state(objs[0], 0, 3);
+ check_mutex_state(objs[1], 2, 123);
+
+ ret = wait_all(fd, 2, objs, 123, &index);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(ETIMEDOUT, errno);
+ check_sem_state(objs[0], 0, 3);
+ check_mutex_state(objs[1], 2, 123);
+
+ count = 3;
+ ret = release_sem(objs[0], &count);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ(0, count);
+
+ ret = wait_all(fd, 2, objs, 123, &index);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ(0, index);
+ check_sem_state(objs[0], 2, 3);
+ check_mutex_state(objs[1], 3, 123);
+
+ owner = 123;
+ ret = ioctl(objs[1], NTSYNC_IOC_MUTEX_KILL, &owner);
+ EXPECT_EQ(0, ret);
+
+ ret = wait_all(fd, 2, objs, 123, &index);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EOWNERDEAD, errno);
+ check_sem_state(objs[0], 1, 3);
+ check_mutex_state(objs[1], 1, 123);
+
+ close(objs[1]);
+
+ /* test waiting on the same object twice */
+ objs[1] = objs[0];
+ ret = wait_all(fd, 2, objs, 123, &index);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EINVAL, errno);
+
+ close(objs[0]);
+
+ close(fd);
+}
+
TEST_HARNESS_MAIN
--
2.45.2
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