[LTP] [PATCH 2/2] swapon03: Swap is not supported on TMPFS on tmpfs

[Li Wang]

On Mon, Feb 5, 2024 at 10:29 AM Petr Vorel <pvorel@suse.cz> wrote:

> tst_test.c:1701: TINFO: === Testing on ext4 ===
> tst_test.c:1117: TINFO: Formatting /dev/loop0 with ext4 opts='' extra
> opts=''
> mke2fs 1.47.0 (5-Feb-2023)
> tst_test.c:1131: TINFO: Mounting /dev/loop0 to /tmp/LTP_swanIztq7/mntpoint
> fstyp=ext4 flags=0
> tst_ioctl.c:26: TINFO: FIBMAP ioctl is supported
> swapon03.c:164: TWARN: Failed to create swapfile: swapfile02: EINVAL (22)
> swapon03.c:175: TFAIL: Failed to setup swaps
>
> At least on kernel 6.7.
>
> Fixes: 009a407a0 ("swapon/off: enable all_filesystem in swap test")
> Reported-by: Dominique Leuenberger <dimstar@opensuse.org>
> Signed-off-by: Petr Vorel <pvorel@suse.cz>
> ---
>  testcases/kernel/syscalls/swapon/swapon03.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/testcases/kernel/syscalls/swapon/swapon03.c
> b/testcases/kernel/syscalls/swapon/swapon03.c
> index 3dbcd5bfd..37314cc65 100644
> --- a/testcases/kernel/syscalls/swapon/swapon03.c
> +++ b/testcases/kernel/syscalls/swapon/swapon03.c
> @@ -247,6 +247,9 @@ static void setup(void)
>         if (access("/proc/swaps", F_OK))
>                 tst_brk(TCONF, "swap not supported by kernel");
>
> +       if (tst_fs_type(".") == TST_TMPFS_MAGIC)
> +               tst_brk(TCONF, "swap not supported on tmpfs");
>

I didn't catch the patch point, isn't the failure on EXT4, why here skip
tmpfs?
And, shouldn't the FS check completed in is_swap_supported()?



> +
>         is_swap_supported(TEST_FILE);
>  }
>
> --
> 2.43.0
>
>

-- 
Regards,
Li Wang