Btrfs doesn't support swapfiles (yet?), so generic/356 fails
erroneously, and generic/357 only passes by accident. Let's add a
_require_scratch_swapfile helper and add it to these tests.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
Since none of the current filesystems support reflinked swap files,
make sure that we prohibit reflinking of swapfiles and swapon of
reflinked files.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Eryu Guan <eguan@redhat.com>