Create the file common/f2fs, which will contain f2fs-specific utilities.
Then add a function _require_scratch_f2fs_compression(), which checks
for f2fs compression support on the scratch filesystem.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Daeho Jeong <daeho43@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>