tree c0028867440d5d50709bf787221bb4c64f29586b
parent ebd84d724c85f22037a5c9cb04b9e6631309cb78
author Dan Williams <dan.j.williams@intel.com> 1469400942 -0700
committer Dan Williams <dan.j.williams@intel.com> 1472018331 -0700

dax: convert to the cdev api

A goal of the device-DAX interface is to be able to support many
exclusive allocations (partitions) of performance / feature
differentiated memory.  This count may exceed the default minors limit
of 256.

As a result of switching to an embedded cdev the inode-to-dax_dev
conversion is simplified, as well as reference counting which can switch
to the cdev kobject lifetime.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>