null_blk: fix wrong capacity when bs is not 512 bytes
authorMatias Bjørling <m@bjorling.me>
Mon, 31 Aug 2015 12:17:31 +0000 (14:17 +0200)
committerJens Axboe <axboe@fb.com>
Wed, 2 Sep 2015 22:49:42 +0000 (16:49 -0600)
commit5fdb7e1b976dc9d18aff8c711e51d17c4c324a0e
tree599f29381b2aa817a069adbe1c5d84ef0e6c2995
parentde65d2d26f81f7f84c7258b3a137f20e8fa5bb6a
null_blk: fix wrong capacity when bs is not 512 bytes

set_capacity() sets device's capacity using 512 bytes sectors.
null_blk calculates the number of sectors by size / bs, which
set_capacity is called with. This led to null_blk exposing the
wrong number of sectors when bs is not 512 bytes.

Signed-off-by: Matias Bjørling <m@bjorling.me>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
drivers/block/null_blk.c