Messages in this thread | | | Date | Mon, 10 Mar 2008 08:55:41 -0700 (PDT) | From | Christoph Lameter <> | Subject | Re: quicklists confuse meminfo |
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On Sun, 9 Mar 2008, Ingo Molnar wrote:
> > careful with this; the quicklists aren't JUST for speed they are also > > there to make sure a page we free that is a pagetable, is not reused > > until we have finished flushing the tlbs on all the cpus that saw it. > > This is a really hard correctness requirement, and while I can see > > that quicklists are probably not the best way to achieve this, we > > can't just throw away the behavior ;( > > no, that's not true anymore - and the current quicklists code doesnt do > anything like that AFAICS. It used to be a lot more complex, but now > it's just a thin wrapper around the page allocator.
Sure it does that. It interacts with the TLB logic which is another bad thing as Linus has pointed out.
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