[PATCH 07/10] powerpc: Implement kmap_atomic_pfn on powerpc

[Kumar Gala]

On Dec 18, 2007, at 10:20 AM, Dale Farnsworth wrote:

> On Sat, Dec 15, 2007 at 05:17:41PM +1100, Benjamin Herrenschmidt  
> wrote:
>>
>> On Thu, 2007-11-22 at 08:46 -0700, Dale Farnsworth wrote:
>>> This is needed for the ppc32 /dev/oldmem driver of crash dump.
>>
>> Kumar's working (well, last I heard he was) on a fixmap mechanism
>> so we can do that sort of thing without CONFIG_HIGHMEM, you may
>> want to sync with him here, that would allow to shrink the crash
>> kernel by not having highmem selected.
>>
>> Cheers,
>> Ben.
>
> Kumar, are you close to posting something that would make the
> patch below unnecessary (or change it significantly)?  If so,
> I'll hold off.

My plan is to get the fixmap stuff posted this week.

- k