Messages in this thread | | | Date | Tue, 30 Sep 2008 20:13:44 -0700 | From | "Ulrich Drepper" <> | Subject | Re: [PATCH 0/4] futex: get_user_pages_fast() for shared futexes |
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On Tue, Sep 30, 2008 at 3:55 AM, Eric Dumazet <dada1@cosmosbay.com> wrote: > I am not sure how it could be converted to private futexes, since > old binaries (static glibc) will use FUTEX_WAKE like calls.
We considered this back when but any effort seems too much. We'd either need a clone flag (a scarce resource) or replace the set_tid _address syscall. Given that the futex is woken once per thread lifetime it shouldn't be an issue. If the semaphore shows up even after this patch feel free to introduce a new set_tid_address syscall.
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