Re: [PATCH 2.6.19.1-rt15][RFC] - futex_requeue_pi implementation (requeue from futex1 to PI-futex2)

Ulrich Drepper
2007-01-04T08:12:27Z

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Pierre Peiffer wrote:
> But, just for information, what is the sys_futex64 for, exactly ? Is
> there a plan to have in the future a 64-bit PID ?

This has nothing to do with PIDs. We need 64-bit values for more
complex bit fields which can then be stored in the futex. One example
is a new, much faster rwlock implementation. These are not practical
without 64-bit futexes. This is why I asked Ingo to add the code.

--
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖

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