Re: Regression - locking (all from 2.6.28)

[Peter Zijlstra]

On Thu, 2009-03-05 at 18:04 +0000, Catalin Marinas wrote:
> 
> BTW, is there a way to know whether the page is in use or on the free
> list? Is page_count(page) feasible?

page_count() == 0, means that the page is not used.
PageBuddy() means its on the freelist.

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