On Fri, Dec 17, 2004 at 08:27:58AM -0800, Christoph Lameter wrote:

On Fri, 17 Dec 2004, Andi Kleen wrote:

quoted

struct page {
        page_flags_t flags;             /* Atomic flags, some possibly
                                         * updated asynchronously */

			<------------ what to do with the 4 byte padding here?

Put the order of the page there for compound pages instead of having that
in index?

That would waste memory on the 64bit architectures that cannot tolerate
32bit atomic flags or on true 32bit architecture.

Also what's the problem of having it in index?

-Andi
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