On Tue, 06 Sep 2016 09:49:41 -0700 Dan Williams <[email protected]> wrote:
> track_pfn_insert() is marking dax mappings as uncacheable. > > It is used to keep mappings attributes consistent across a remapped range. > However, since dax regions are never registered via track_pfn_remap(), the > caching mode lookup for dax pfns always returns _PAGE_CACHE_MODE_UC. We do > not > use track_pfn_insert() in the dax-pte path, and we always want to use the > pgprot of the vma itself, so drop this call. > > Cc: Ross Zwisler <[email protected]> > Cc: Matthew Wilcox <[email protected]> > Cc: Kirill A. Shutemov <[email protected]> > Cc: Andrew Morton <[email protected]> > Cc: Nilesh Choudhury <[email protected]> > Reported-by: Kai Zhang <[email protected]> > Reported-by: Toshi Kani <[email protected]> > Cc: <[email protected]> > Signed-off-by: Dan Williams <[email protected]> Changelog fails to explain the user-visible effects of the patch. The stable maintainer(s) will look at this and wonder "ytf was I sent this". After fixing that, Acked-by: Andrew Morton <[email protected]>
