On Wed, Sep 23, 2015 at 6:47 AM, Geert Uytterhoeven <[email protected]> wrote: > Hi Dan, > > On Wed, Sep 23, 2015 at 6:42 AM, Dan Williams <[email protected]> > 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/
yes. >> 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 <[email protected]> >> Cc: Andrew Morton <[email protected]> >> Cc: David Airlie <[email protected]> >> Signed-off-by: Dan Williams <[email protected]> > >> 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? > I should have noted that this is a new compile error introduced by this patch since include/linux/mm.h now calls __pfn_to_phys() and m68k does not always have it defined. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
