Re: [RFC][patch 0/2] mm: remove PageReserved

Nick Piggin
2005-08-09T09:57:48Z

Arjan van de Ven wrote:
> On Tue, 2005-08-09 at 19:31 +1000, Nick Piggin wrote:
>
>>Arjan van de Ven wrote:
>>

>>>and..... can we make a general page_is_ram() function that does what it
>>>says? on x86 it can go via the e820 table, other architectures can do
>>>whatever they need....
>>>
>>
>>That would be very helpful. That should cover the remaining (ab)users
>>of PageReserved.
>>
>>It would probably be fastest to implement this with a page flag,
>>however if swsusp and ioremap are the only users then it shouldn't
>>be a problem to go through slower lookups (and this would remove the
>>need for the PageValidRAM flag that I had worried about earlier).
>
>
> if you want I have implementations of this for x86, x86_64 and iirc ia64
> (not 100% sure about the later). None of these use a page flag, but use
> the same information the kernel uses during bootup to find ram.
>

It seems like a good idea to me, if the arch guys are up for it.
If you have a copy of the patch handy, sure send it over.

Thanks
Nick

--
SUSE Labs, Novell Inc.

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