> On Tue, 13 Mar 2007 00:13:25 -0700 (PDT) Christoph Lameter <[EMAIL > PROTECTED]> 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 [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/