David Hildenbrand wrote: > We setup the cache mode but ... don't forward the updated pgprot to > insert_pfn_pud(). > > Only a problem on x86-64 PAT when mapping PFNs using PUDs that > require a special cachemode.
This is only a problem if the kernel mapped the pud in advance of userspace mapping it, right? The change looks good. Reviewed-by: Dan Williams <dan.j.willi...@intel.com> ...but I am struggling with the scenario where this causes problems in practice, where vm_page_prot is the wrong cachemode.
