libnvdimm, blk: move i/o infrastructure to nd_namespace_blk

Consolidate the information for issuing i/o to a blk-namespace, and
eliminate some pointer chasing.

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 11:27:36 -07:00
commit 9d90725ddc
2 changed files with 71 additions and 68 deletions