While writing an improved changelog, as prompted by Andrew, for v1 of "mm: fix cache mode of dax pmd mappings" [1], it struck me that vmf_insert_pfn_pmd() is implemented correctly. Instead, it is the memtype tree that is missing a memtype reservation for devm_memremap_pages() ranges. vmf_insert_pfn_pmd() is correct to validate the memtype before inserting a mapping, but this highlights that vm_insert_mixed() is missing this validation. I would still like to take patch 1 through the nvdimm.git tree, with -mm acks, along with the device-dax fixes for v4.8-rc6. Patch 2 can go the typical -mm route for v4.9 since it has potential to change behavior in its DRI usages, needs soak time in -next, and there no known memtype conflict problems it would fix. [1]: https://lists.01.org/pipermail/linux-nvdimm/2016-September/006781.html --- Dan Williams (2): mm: fix cache mode of dax pmd mappings mm: fix cache mode tracking in vm_insert_mixed() arch/x86/mm/pat.c | 17 ++++++++++------- kernel/memremap.c | 9 +++++++++ mm/memory.c | 8 ++++++-- 3 files changed, 25 insertions(+), 9 deletions(-) _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
