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authorDan Williams <dan.j.williams@intel.com>2018-11-08 00:31:23 +0100
committerDan Williams <dan.j.williams@intel.com>2019-01-07 06:41:55 +0100
commitd200781ef237a354d918ceff5cee350d88a93d42 (patch)
treeafd53c6e25a57e31b8c0c8542e086bd50840bc9a /drivers/dax/Makefile
parentdevice-dax: Move resource pinning+mapping into the common driver (diff)
downloadlinux-d200781ef237a354d918ceff5cee350d88a93d42.tar.xz
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device-dax: Add support for a dax override driver
Introduce the 'new_id' concept for enabling a custom device-driver attach policy for dax-bus drivers. The intended use is to have a mechanism for hot-plugging device-dax ranges into the page allocator on-demand. With this in place the default policy of using device-dax for performance differentiated memory can be overridden by user-space policy that can arrange for the memory range to be managed as 'System RAM' with user-defined NUMA and other performance attributes. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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