Messages in this thread | | | Date | Tue, 13 Mar 2007 00:53:34 -0800 | From | Andrew Morton <> | Subject | Re: [QUICKLIST 0/4] Arch independent quicklists V2 |
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> On Tue, 13 Mar 2007 00:13:25 -0700 (PDT) Christoph Lameter <clameter@sgi.com> wrote: > Page table pages have the characteristics that they are typically zero > or in a known state when they are freed.
Well if they're zero then perhaps they should be released to the page allocator to satisfy the next __GFP_ZERO request. If that request is for a pagetable page, we break even (except we get to remove special-case code). If that __GFP_ZERO allocation was or some application other than for a pagetable, we win.
iow, can we just nuke 'em?
(Will require some work in the page allocator) (That work will open the path to using the idle thread to prezero pages) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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