Re: sched_setaffinity usability

[Ingo Molnar]

* Andrew Morton <akpm@xxxxxxxx> wrote:

> >  Right now the VDSO mostly contains code and exception-handling data, but
> >  it could contain real, userspace-visible data just as much: info that is
> >  only known during the kernel build. There's basically no cost in adding
> >  more fields to the VDSO, and it seems to be superior to any of the other
> >  approaches. Is there any reason not to do it?
> 
> It's x86-specific?

x86-64 has a VDSO page as well, and it can be implemented on any
architecture that wants to accelerate syscalls in user-space (and/or
wants to provide alternate methods of system-entry).

and a non-existent VDSO is something glibc handles already.

	Ingo
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