libnvdimm, pmem: use ->queuedata for driver private data

Save a pointer chase by storing the driver private data in the
request_queue rather than the gendisk.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2016-03-18 23:47:43 -07:00
commit bd842b8ca7