RE: [PATCH] 2.5.68 FUTEX support should be optional

Linus Torvalds (torvalds@transmeta.com)
Wed, 14 May 2003 18:00:08 -0700 (PDT)


On Wed, 14 May 2003, Christopher Hoover wrote:
> >
> > (I ran a futex-free ppc64 kernel. It worked.)
>
> Yep. I'm run an ARM kernel as well. Works fine.

And do you guys actually use a recent glibc snapshot? Do you ever expect
to? Do you ever expect to run a third-party specialized web-server or
database library? All things that can use futex'es, and probably will.

I will strongly argue against making futexes conditional, simply because I
_want_ people to be able to depend on them in modern kernels. I do not
want developers to fall back on SysV semaphores just because it's too
painful for them to use the faster alternatives.

Linus

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