[LTP] [PATCH] syscalls/swapon/swapon0{1..3}: remove checking if fs type is BTRFS

[Fuli QI]

Hi,

> On Mar 19, 2021, at 22:05, Xiao Yang <ice_yangxiao@163.com> wrote:
> 
> Hi Qi,
> 
> Can we rename subject to 'Remove the check for BTRFS'?

Yes.

> 
> On 3/19/21 7:59 PM, QI Fuli wrote:
>> remove redundant tasks as BTRFS is checked in is_swap_supported()
>> Fixes: caf453532("syscalls/swapon/swapon0{1..3}: use helpers to check
>> 	support status")
>> 
>> Signed-off-by: QI Fuli <qi.fuli@fujitsu.com>
>> ---
>>  testcases/kernel/syscalls/swapon/swapon01.c |  7 -------
>>  testcases/kernel/syscalls/swapon/swapon02.c |  5 -----
>>  testcases/kernel/syscalls/swapon/swapon03.c | 15 +--------------
>>  3 files changed, 1 insertion(+), 26 deletions(-)
>> 
>> diff --git a/testcases/kernel/syscalls/swapon/swapon01.c b/testcases/kernel/syscalls/swapon/swapon01.c
>> index f95ce0ab2..aff842e4c 100644
>> --- a/testcases/kernel/syscalls/swapon/swapon01.c
>> +++ b/testcases/kernel/syscalls/swapon/swapon01.c
>> @@ -32,18 +32,11 @@ static void cleanup(void);
>>  char *TCID = "swapon01";
>>  int TST_TOTAL = 1;
>> 
>> -static long fs_type;
>> -
>>  static void verify_swapon(void)
>>  {
>>  	TEST(ltp_syscall(__NR_swapon, "./swapfile01", 0));
>> 
>>  	if (TEST_RETURN == -1) {
>> -		if (fs_type == TST_BTRFS_MAGIC && errno == EINVAL) {
>> -			tst_brkm(TCONF, cleanup,
>> -			         "Swapfile on BTRFS not implemeted");
>> -			return;
>> -		}
>>  		tst_resm(TFAIL | TTERRNO, "Failed to turn on swapfile");
>>  	} else {
>>  		tst_resm(TPASS, "Succeeded to turn on swapfile");
>> diff --git a/testcases/kernel/syscalls/swapon/swapon02.c b/testcases/kernel/syscalls/swapon/swapon02.c
>> index 3d49d0c6b..653b1f33e 100644
>> --- a/testcases/kernel/syscalls/swapon/swapon02.c
>> +++ b/testcases/kernel/syscalls/swapon/swapon02.c
>> @@ -81,11 +81,6 @@ static void verify_swapon(struct test_case_t *test)
>>  		return;
>>  	}
>> 
>> -	if (fs_type == TST_BTRFS_MAGIC && errno == EINVAL) {
>> -		tst_resm(TCONF, "Swapfile on BTRFS not implemeted");
>> -			return;
>> -	}
>> -
> 
> Hi Qi,
> 
> The following check for btrfs can be removed as well:
> 
> -------------------------------------------------------------
> 
> static void setup(void)
> {
> ...
>         if (ltp_syscall(__NR_swapon, "alreadyused", 0)) {
>                 if (fs_type != TST_BTRFS_MAGIC || errno != EINVAL)
>                         tst_resm(TWARN | TERRNO, "swapon(alreadyused) failed");
> ...
> 
> -------------------------------------------------------------
> 
> Note: also remove fs_type variable.
> 
> Other than these, it looks good to me.
> 
> Best Regards,
> 
> Xiao Yang

Ok, I got it.
I will send a v2 patch.

Thank you very much.

QI


> 
>>  	tst_resm(TFAIL, "swapon(2) failed to produce expected error:"
>>  	         " %d, errno: %s and got %d.", test->exp_errno,
>>  	         test->exp_errval, TEST_ERRNO);
>> diff --git a/testcases/kernel/syscalls/swapon/swapon03.c b/testcases/kernel/syscalls/swapon/swapon03.c
>> index cef57150c..19455bfe6 100644
>> --- a/testcases/kernel/syscalls/swapon/swapon03.c
>> +++ b/testcases/kernel/syscalls/swapon/swapon03.c
>> @@ -52,8 +52,6 @@ int TST_TOTAL = 1;
>> 
>>  static int swapfiles;
>> 
>> -static long fs_type;
>> -
>>  int testfiles = 3;
>>  static struct swap_testfile_t {
>>  	char *filename;
>> @@ -215,9 +213,6 @@ static int setup_swap(void)
>>  			/* turn on the swap file */
>>  			res = ltp_syscall(__NR_swapon, filename, 0);
>>  			if (res != 0) {
>> -				if (fs_type == TST_BTRFS_MAGIC && errno == EINVAL)
>> -					exit(2);
>> -
>>  				if (errno == EPERM) {
>>  					printf("Successfully created %d "
>>  					       "swapfiles\n", j);
>> @@ -233,16 +228,8 @@ static int setup_swap(void)
>>  	} else
>>  		waitpid(pid, &status, 0);
>> 
>> -	switch (WEXITSTATUS(status)) {
>> -	case 0:
>> -	break;
>> -	case 2:
>> -		tst_brkm(TCONF, cleanup, "Swapfile on BTRFS not implemeted");
>> -	break;
>> -	default:
>> +	if (WEXITSTATUS(status) == 1)
>>  		tst_brkm(TFAIL, cleanup, "Failed to setup swaps");
>> -	break;
>> -	}
>> 
>>  	/* Create all needed extra swapfiles for testing */
>>  	for (j = 0; j < testfiles; j++)
>> --
>> 2.29.2

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