[PATCH 05/10] xfstests: do not unmount tmpfs during remount.

[Junho Ryu]

> I don't know what the solution here is - everything I think of is
> either messy, ugly or unmaintainable. All I'm trying to do is find a
> way to handle tmpfs filesystems in a way that is maintainable and
> doesn't require every developer to be aware of the quirks of tmpfs
> when writing and reviewing new generic tests....

If it is acceptable that tmpfs running tests which does not make much
sense without actually re-mounting devices, all other developers need
to care is using _scratch_remount() and _test_remount().

Even if someone does not use the functions, tests will only fail on
tmpfs, and people like me who cares about it will be happy to fix it.

So far, generic/053 is the only test which does something else between
umount and mount.