> > #ifndef CONFIG_PPC64 /* XXX for now */
> > - return paddr < __pa(high_memory);
> > + return pfn < max_pfn;
> > #else
> > + unsigned long paddr = (pfn << PAGE_SHIFT);
>
> seems like this could be a phys_addr_t
Yes, it could I guess, but that would be an unrelated change, and I'
On Sep 15, 2008, at 3:43 PM, Roland Dreier wrote:
Commit 8b150478 ("ppc: make phys_mem_access_prot() work with pfns
instead of addresses") fixed page_is_ram() in arch/ppc to avoid
overflow
for addresses above 4G on 32-bit kernels. However arch/powerpc's
page_is_ram() is missing the same fix
Commit 8b150478 ("ppc: make phys_mem_access_prot() work with pfns
instead of addresses") fixed page_is_ram() in arch/ppc to avoid overflow
for addresses above 4G on 32-bit kernels. However arch/powerpc's
page_is_ram() is missing the same fix -- it computes a physical address
by doing pfn << PAGE_S
