On Wed, 2005-04-20 at 21:02 +0900, KAMEZAWA Hiroyuki wrote:
> Hi,
>
> There are several types of PG_reserved pages,
> (a) Memory Hole
> (b) Used by Kernel
> (c) Set by drivers
> (d) Isorated by MCA
> (e) used by perfmon
> etc....
>
> I think it's useful to distinguish many types of PG_reserved pages.
I'm not so sure about this. at all.
> For example, Memory Hotplug can ignore (a).
Memory Hotplug can also use page_is_ram().
/dev/memstate really looks like a bad idea to me as well... I rather
have less than more /dev/*mem*
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