On Tue, Dec 18, 2007 at 04:24:04AM -0800, Andrew Morton wrote:
> On Tue, 18 Dec 2007 13:03:00 +0100 (CET) Thomas Bogendoerfer <[email protected]> wrote:
> > --- a/mm/page_alloc.c
> > +++ b/mm/page_alloc.c
> > @@ -3427,7 +3427,7 @@ static void __init_refok alloc_node_mem_map(struct pglist_data *pgdat)
> > mem_map = NODE_DATA(0)->node_mem_map;
> > #ifdef CONFIG_ARCH_POPULATES_NODE_MAP
> > if (page_to_pfn(mem_map) != pgdat->node_start_pfn)
> > - mem_map -= pgdat->node_start_pfn;
> > + mem_map -= (pgdat->node_start_pfn - ARCH_PFN_OFFSET);
> > #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */
> > }
> > #endif
>
> hm. It's rather non-trivial to verify that this will compile OK on all
> architectures.
I grepped through include/asm-* and found:
#if defined(CONFIG_FLATMEM)
#ifndef ARCH_PFN_OFFSET
#define ARCH_PFN_OFFSET (0UL)
#endif
in include/asm-generic/memory_model.h. So I'm still confident, that
this works on all architectures. It's tested on MIPS.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea. [ RFC1925, 2.3 ]
--
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/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
