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SubjectRe: [patch] futex requeueing feature, futex-requeue-2.5.69-D3
On Thu, May 22, 2003 at 01:34:42PM +0200, Ingo Molnar wrote:
> there's a patch in the works to change futex hashing to not require page
> pinning, without making futexes process-local. This should also fix the
> FUTEX_FD problems.
> basically the idea is that struct page remains to be a good hash whenever
> the page is present, and the swapout pte value is a good hash key when the
> page is swapped out. So we basically can make futexes swappable.
> this gets rid of pinned pages and pagetable locking, without the need for
> API-level changes.

Someone's already doing it? I'll back off if so.

-- wli
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