block/swim: Fix IO error at end of medium

Reading to the end of a 720K disk results in an IO error instead of EOF
because the block layer thinks the disk has 2880 sectors. (Partly this
is a result of inverted logic of the ONEMEG_MEDIA bit that's now fixed.)

Initialize the density and head count in swim_add_floppy() to agree
with the device size passed to set_capacity() during drive probe.

Call set_capacity() again upon device open, after refreshing the density
and head count values.

Cc: Laurent Vivier <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: [email protected] # v4.14+
Tested-by: Stan Johnson <[email protected]>
Signed-off-by: Finn Thain <[email protected]>
Acked-by: Laurent Vivier <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>

0 files changed, 0 insertions, 0 deletions