On Tue, 06 Sep 2016 09:49:41 -0700 Dan Williams <dan.j.williams@xxxxxxxxx> 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 <ross.zwisler@xxxxxxxxxxxxxxx> > Cc: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx> > Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Cc: Nilesh Choudhury <nilesh.choudhury@xxxxxxxxxx> > Reported-by: Kai Zhang <kai.ka.zhang@xxxxxxxxxx> > Reported-by: Toshi Kani <toshi.kani@xxxxxxx> > Cc: <stable@xxxxxxxxxxxxxxx> > Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> 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 <akpm@xxxxxxxxxxxxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>