[LTP] [PATCH] tst_supported_fs: Implement checking paths against skiplist

[Petr Vorel]

Hi all,

> > Although the tst_fs_type_name() functions could use some improvements,
> > e.g. ext4 must be specified in skiplist as "ext2/ext3/ext4" to get properly

> Yes, that's true, we need to make it keep consistent with two
> skipping ways. Otherwise below test output "ext2/ext3/ext4"
> looks like a bit mess to remember.

> Better going with a single FS for matching (i.e. "ext4" for both fs_type
> and '-d path').
> But we can solve this in a separate patch later.

> $ df -T . | tail -1 | awk '{print $2}'
> ext4

> $ ./tst_supported_fs -s "ext4" ext4
> tst_supported_fs.c:135: TCONF: ext4 is skipped
> $ echo $?
> 32

> $ ./tst_supported_fs -s "ext4" -d .
> tst_supported_fs.c:137: TINFO: ext2/ext3/ext4 is not skipped
> $ echo $?
> 0

> $ ./tst_supported_fs -s "ext2/ext3/ext4" -d .
> tst_supported_fs.c:135: TCONF: ext2/ext3/ext4 is skipped
> $ echo $?
> 32

The same problem is for .skip_filesystems on tests which does not use
.all_filesystems. We only haven't noticed, because there was no reason to skip
ext[234] so far. I'm looking into this.

BTW .skip_filesystems without .all_filesystems have other problems, e.g. using
filesystems which aren't in fs_type_whitelist[] array (e.g. ramfs, nfs).
That'd be nice to fix after the release.

Kind regards,
Petr