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Subject: Re: [PATCH] selftests/memfd: move common code into common.c
To:     Anders Roxell <anders.roxell@linaro.org>,
        David Herrmann <dh.herrmann@gmail.com>
Cc:     linux-kselftest@vger.kernel.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Shuah Khan <shuah@kernel.org>
References: <20180417085936.19512-1-anders.roxell@linaro.org>
 <CADYN=9L47uYKQqZVz91EDHNd0aWXrTPc_tbdAZHBeWLKTHgcTA@mail.gmail.com>
From:   Shuah Khan <shuah@kernel.org>
Message-ID: <9a6dda41-1cbd-d01f-4161-19112712f2e7@kernel.org>
Date:   Tue, 8 May 2018 09:33:03 -0600
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Hi David,

On 05/08/2018 03:38 AM, Anders Roxell wrote:
> On 17 April 2018 at 10:59, Anders Roxell <anders.roxell@linaro.org> wrote:
>> Remove code duplication, in the current code, we move common code for
>> memfd to common.c.
>>
>> The duplicate functions got added in commit 87b2d44026e0 ("selftests:
>> add memfd/sealing page-pinning tests")
>>
>> Signed-off-by: Anders Roxell <anders.roxell@linaro.org>

Okay pull in this patch. I will queue this up for 4.18-rc1. 
Let me know if you have any objections.

>> ---
>>  tools/testing/selftests/memfd/common.c     | 37 +++++++++++++++++++
>>  tools/testing/selftests/memfd/common.h     |  4 ++
>>  tools/testing/selftests/memfd/fuse_test.c  | 43 +---------------------
>>  tools/testing/selftests/memfd/memfd_test.c | 37 -------------------
>>  4 files changed, 43 insertions(+), 78 deletions(-)
>>
>> diff --git a/tools/testing/selftests/memfd/common.c b/tools/testing/selftests/memfd/common.c
>> index 8eb3d75f6e60..fee1f07828a3 100644
>> --- a/tools/testing/selftests/memfd/common.c
>> +++ b/tools/testing/selftests/memfd/common.c
>> @@ -44,3 +44,40 @@ int sys_memfd_create(const char *name, unsigned int flags)
>>
>>         return syscall(__NR_memfd_create, name, flags);
>>  }
>> +
>> +unsigned int mfd_assert_get_seals(int fd)
>> +{
>> +       int r;
>> +
>> +       r = fcntl(fd, F_GET_SEALS);
>> +       if (r < 0) {
>> +               printf("GET_SEALS(%d) failed: %m\n", fd);
>> +               abort();
>> +       }
>> +
>> +       return (unsigned int)r;
>> +}
>> +
>> +void mfd_assert_add_seals(int fd, unsigned int seals)
>> +{
>> +       int r;
>> +       unsigned int s;
>> +
>> +       s = mfd_assert_get_seals(fd);
>> +       r = fcntl(fd, F_ADD_SEALS, seals);
>> +       if (r < 0) {
>> +               printf("ADD_SEALS(%d, %u -> %u) failed: %m\n", fd, s, seals);
>> +               abort();
>> +       }
>> +}
>> +
>> +void mfd_assert_has_seals(int fd, unsigned int seals)
>> +{
>> +       unsigned int s;
>> +
>> +       s = mfd_assert_get_seals(fd);
>> +       if (s != seals) {
>> +               printf("%u != %u = GET_SEALS(%d)\n", seals, s, fd);
>> +               abort();
>> +       }
>> +}
>> diff --git a/tools/testing/selftests/memfd/common.h b/tools/testing/selftests/memfd/common.h
>> index 522d2c630bd8..5c778d15e8c7 100644
>> --- a/tools/testing/selftests/memfd/common.h
>> +++ b/tools/testing/selftests/memfd/common.h
>> @@ -6,4 +6,8 @@ extern int hugetlbfs_test;
>>  unsigned long default_huge_page_size(void);
>>  int sys_memfd_create(const char *name, unsigned int flags);
>>
>> +void mfd_assert_add_seals(int fd, unsigned int seals);
>> +void mfd_assert_has_seals(int fd, unsigned int seals);
>> +unsigned int mfd_assert_get_seals(int fd);
>> +
>>  #endif
>> diff --git a/tools/testing/selftests/memfd/fuse_test.c b/tools/testing/selftests/memfd/fuse_test.c
>> index b018e835737d..231714615861 100644
>> --- a/tools/testing/selftests/memfd/fuse_test.c
>> +++ b/tools/testing/selftests/memfd/fuse_test.c
>> @@ -60,49 +60,10 @@ static int mfd_assert_new(const char *name, loff_t sz, unsigned int flags)
>>         return fd;
>>  }
>>
>> -static __u64 mfd_assert_get_seals(int fd)
>> +static int mfd_busy_add_seals(int fd, unsigned int seals)
>>  {
>>         long r;
>> -
>> -       r = fcntl(fd, F_GET_SEALS);
>> -       if (r < 0) {
>> -               printf("GET_SEALS(%d) failed: %m\n", fd);
>> -               abort();
>> -       }
>> -
>> -       return r;
>> -}
>> -
>> -static void mfd_assert_has_seals(int fd, __u64 seals)
>> -{
>> -       __u64 s;
>> -
>> -       s = mfd_assert_get_seals(fd);
>> -       if (s != seals) {
>> -               printf("%llu != %llu = GET_SEALS(%d)\n",
>> -                      (unsigned long long)seals, (unsigned long long)s, fd);
>> -               abort();
>> -       }
>> -}
>> -
>> -static void mfd_assert_add_seals(int fd, __u64 seals)
>> -{
>> -       long r;
>> -       __u64 s;
>> -
>> -       s = mfd_assert_get_seals(fd);
>> -       r = fcntl(fd, F_ADD_SEALS, seals);
>> -       if (r < 0) {
>> -               printf("ADD_SEALS(%d, %llu -> %llu) failed: %m\n",
>> -                      fd, (unsigned long long)s, (unsigned long long)seals);
>> -               abort();
>> -       }
>> -}
>> -
>> -static int mfd_busy_add_seals(int fd, __u64 seals)
>> -{
>> -       long r;
>> -       __u64 s;
>> +       unsigned int s;
>>
>>         r = fcntl(fd, F_GET_SEALS);
>>         if (r < 0)
>> diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
>> index 10baa1652fc2..527789de69b5 100644
>> --- a/tools/testing/selftests/memfd/memfd_test.c
>> +++ b/tools/testing/selftests/memfd/memfd_test.c
>> @@ -67,43 +67,6 @@ static void mfd_fail_new(const char *name, unsigned int flags)
>>         }
>>  }
>>
>> -static unsigned int mfd_assert_get_seals(int fd)
>> -{
>> -       int r;
>> -
>> -       r = fcntl(fd, F_GET_SEALS);
>> -       if (r < 0) {
>> -               printf("GET_SEALS(%d) failed: %m\n", fd);
>> -               abort();
>> -       }
>> -
>> -       return (unsigned int)r;
>> -}
>> -
>> -static void mfd_assert_has_seals(int fd, unsigned int seals)
>> -{
>> -       unsigned int s;
>> -
>> -       s = mfd_assert_get_seals(fd);
>> -       if (s != seals) {
>> -               printf("%u != %u = GET_SEALS(%d)\n", seals, s, fd);
>> -               abort();
>> -       }
>> -}
>> -
>> -static void mfd_assert_add_seals(int fd, unsigned int seals)
>> -{
>> -       int r;
>> -       unsigned int s;
>> -
>> -       s = mfd_assert_get_seals(fd);
>> -       r = fcntl(fd, F_ADD_SEALS, seals);
>> -       if (r < 0) {
>> -               printf("ADD_SEALS(%d, %u -> %u) failed: %m\n", fd, s, seals);
>> -               abort();
>> -       }
>> -}
>> -
>>  static void mfd_fail_add_seals(int fd, unsigned int seals)
>>  {
>>         int r;
>> --
>> 2.17.0
>>
> 
> Ping.
> 

thanks,
-- Shuah