Hi Dan, On Wed, Sep 23, 2015 at 6:42 AM, Dan Williams <dan.j.williams@xxxxxxxxx> wrote: > Convert the raw unsigned long 'pfn' argument to __pfn_t for the purpose of > evaluating the PFN_MAP and PFN_DEV flags. When both are set the it s/the it/it/ > triggers _PAGE_DEVMAP to be set in the resulting pte. This flag will > later be used in the get_user_pages() path to pin the page mapping, > dynamically allocated by devm_memremap_pages(), until all the resulting > pages are released. > > There are no functional changes to the gpu drivers as a result of this > conversion. > > This uncovered several architectures with no local definition for > pfn_pte(), in response __pfn_t_pte() is only defined when an arch > opts-in by "#define pfn_pte pfn_pte". > > Cc: Dave Hansen <dave@xxxxxxxx> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Cc: David Airlie <airlied@xxxxxxxx> > Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> > diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h > index ef209169579a..930a42f6db44 100644 > --- a/arch/m68k/include/asm/page_no.h > +++ b/arch/m68k/include/asm/page_no.h > @@ -34,6 +34,7 @@ extern unsigned long memory_end; > > #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ > ((void *)(kaddr) < (void *)memory_end)) > +#define __pfn_to_phys(pfn) PFN_PHYS(pfn) The above change doesn't match the patch description? Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds -- 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>