dm: rename __dm_get_reserved_ios() helper to __dm_get_module_param()

__dm_get_module_param() could be useful for future DM module parameters
besides those related to "reserved_ios".

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mike Snitzer 2015-02-27 22:25:26 -05:00
commit 09c2d53101