[LTP] [PATCH v2] aio02: Drop O_DIRECT flag for tmpfs

[Xiao Yang]

On 2020/2/12 17:42, Xiao Yang wrote:
> On 2020/2/12 15:31, Yang Xu wrote:
>> tmpfs doesn't support O_DIRECT flag, drop it. userer still can run aio02
>> with different filesystem by mounting specified filesystem on $TMPDIR.
>>
>> Signed-off-by: Yang Xu<xuyang2018.jy@cn.fujitsu.com>
>> ---
>>   testcases/kernel/io/aio/aio02.c | 15 ++++++++++++++-
>>   1 file changed, 14 insertions(+), 1 deletion(-)
>>
>> diff --git a/testcases/kernel/io/aio/aio02.c b/testcases/kernel/io/aio/aio02.c
>> index e283afba9..3bb89c45f 100644
>> --- a/testcases/kernel/io/aio/aio02.c
>> +++ b/testcases/kernel/io/aio/aio02.c
>> @@ -18,7 +18,8 @@
>>   #define AIO_MAXIO 32
>>   #define AIO_BLKSIZE (64*1024)
>>
>> -static int wait_count = 0;
>> +static int wait_count;
> Hi,
>
> Why do you set wait_count to 0?
> Isn't it default behavior?
Please ignore the comment.  Sorry, I misunderstand the change.
>> +static unsigned int use_tmpfs;
>>
>>   #define DESC_FLAGS_OPR(x, y) .desc = (x == IO_CMD_PWRITE ? "WRITE: " #y: "READ : " #y), \
>>   	.flags = y, .operation = x
>> @@ -206,6 +207,11 @@ static void test_io(unsigned int n)
>>   	int status;
>>   	struct testcase *tc = testcases + n;
>>
>> +	if (use_tmpfs&&  (tc->flags&  O_DIRECT)) {
>> +		tst_res(TINFO, "Drop O_DIRECT flag for tmpfs");
>> +		tc->flags&= (~O_DIRECT);
>> +	}
>> +
>>   	status = io_tio("file", tc->flags, tc->operation);
>>   	if (status)
>>   		tst_res(TFAIL, "%s, status = %d", tc->desc, status);
>> @@ -213,7 +219,14 @@ static void test_io(unsigned int n)
>>   		tst_res(TPASS, "%s", tc->desc);
>>   }
>>
>> +static void setup(void)
>> +{
>> +	if (tst_fs_type(".") == TST_TMPFS_MAGIC)
>> +		use_tmpfs = 1;
> Could you simple the fix by moving 'tst_fs_type(".") == TST_TMPFS_MAGIC
> ' into test_io().
> (i.e. Drop unused setup() and use_tmpfs.)
>
> Thanks,
> Xiao Yang
>> +}
>> +
>>   static struct tst_test test = {
>> +	.setup = setup,
>>   	.needs_tmpdir = 1,
>>   	.test = test_io,
>>   	.tcnt = ARRAY_SIZE(testcases),
>
>
>