Rework the over quota test to be more a realistic test. Take into
consideration that the system page size will be different across
platforms.
Signed-off-by: Geoff Levand <geoff@infradead.org>
We just need a small chunk of data to test put, so to be
consistent across platforms use a fixed size of 64 bytes.
Signed-off-by: Geoff Levand <geoff@infradead.org>