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2 Commits

Author SHA1 Message Date
Dan Williams c5ed926864 libnvdimm, dax: autodetect support 
For autodetecting a previously established dax configuration we need the
info block to indicate block-device vs device-dax mode, and we need to
have the default namespace probe hand-off the configuration to the
dax_pmem driver.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2016-05-20 22:02:57 -07:00
Dan Williams cd03412a51 libnvdimm, dax: introduce device-dax infrastructure 
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 that it can be attached to a driver other
than the pmem driver.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2016-05-09 15:35:42 -07:00