Re: [patch 2] mm: speculative get_page

[Dave Hansen]

On Tue, 2005-06-28 at 23:16 +1000, Nick Piggin wrote:
> I think there are a a few ways that bits can be reclaimed if we
> start digging. swsusp uses 2 which seems excessive though may be
> fully justified. 

They (swsusp) actually don't need the bits at all until suspend-time, at
all.  Somebody coded up a "dynamic page flags" patch that let them kill
the page->flags use, but it didn't really go anywhere.  Might be nice if
someone dug it up.  I probably have a copy somewhere.

-- Dave

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