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DateFri, 14 Aug 2009 14:56:05 +0200
FromMichael Schnell <>
SubjectRe: implementing Futex
Arnd Bergmann wrote:
> The man page says that the last parameter is ignored for op=FUTEX_WAKE,
> which is correct. The code that you were looking at however is for
> of=FUTEX_WAKE_OP, which is not documented as of manpages-3.22.
>
> It was added by Jakub back in 2005, but if he wrote a documentation
> for it, it never went into the man pages package. On a similar
> note, Ingo also added other futex operations that are not documented
> yet.
>

Thus in any documented software, the quite complex stuff in
"futex_atomic_op_inuser", which is provided in several different
"futex.h" files for all those architectures *never* is used ?

Weired !

Is there any viable use for this ?

Would it not be appropriate either to do a documentation or to remove it ?

-Michael


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