Messages in this thread | | | Date | Mon, 5 Feb 2007 09:33:20 -0800 (PST) | From | Christoph Lameter <> | Subject | Re: [RFC] Tracking mlocked pages and moving them off the LRU |
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On Mon, 5 Feb 2007, Arjan van de Ven wrote:
> > I still need a solution for the problem of not having enough page flag > > bits on i386 NUMA. > > I still don't get why you *really* need such a bit.
Because otherwise you cannot establish why a page was removed from the LRU. If a page is off the LRU for other reasons then one should not return the page to the LRU in zap_pte_range. How can this determination be made without a page flag?
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