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authorDan Williams <dan.j.williams@intel.com>2016-07-24 15:55:42 -0700
committerDan Williams <dan.j.williams@intel.com>2016-08-23 22:58:51 -0700
commitba09c01d2fa866f22e42ac2af405fe386f491879 (patch)
treec0028867440d5d50709bf787221bb4c64f29586b /fs/char_dev.c
parentebd84d724c85f22037a5c9cb04b9e6631309cb78 (diff)
downloadlwn-ba09c01d2fa866f22e42ac2af405fe386f491879.tar.gz
lwn-ba09c01d2fa866f22e42ac2af405fe386f491879.zip
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>
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