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SubjectRe: [Lhms-devel] Re: [RFC] buddy allocator without bitmap(2) [0/3]
Hiroyuki KAMEZAWA <kamezawa.hiroyu@jp.fujitsu.com> wrote:
>
> Because I had to record some information about shape of mem_map, I used PG_xxx bit.
> 1 bit is maybe minimum consumption.

The point is that we're running out of bits in page.flags.

You should be able to reuse an existing bit for this application. PG_lock would suit.
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