On Wed, 07 Sep 2016 15:26:14 -0700 Dan Williams
wrote:
> track_pfn_insert() in vmf_insert_pfn_pmd() is marking dax mappings as
> uncacheable rendering them impractical for application usage. DAX-pte
> mappings are cached and the goal of establishing DAX-pmd mappings is to
> attain more
track_pfn_insert() in vmf_insert_pfn_pmd() is marking dax mappings as
uncacheable rendering them impractical for application usage. DAX-pte
mappings are cached and the goal of establishing DAX-pmd mappings is to
attain more performance, not dramatically less (3 orders of magnitude).