[PATCH 2/7] libnvdimm, dax: introduce device-dax infrastructure

2016-05-08 Thread Dan Williams
Device DAX is the device-centric analogue of Filesystem DAX (CONFIG_FS_DAX). It allows persistent memory ranges to be allocated and mapped without need of an intervening file system. This initial infrastructure arranges for a libnvdimm pfn-device to be represented as a different device-type so

[PATCH 2/7] libnvdimm, dax: introduce device-dax infrastructure

2016-05-08 Thread Dan Williams
Device DAX is the device-centric analogue of Filesystem DAX (CONFIG_FS_DAX). It allows persistent memory ranges to be allocated and mapped without need of an intervening file system. This initial infrastructure arranges for a libnvdimm pfn-device to be represented as a different device-type so