On Sat, 28 Mar 2015, Peter Zijlstra wrote:

On Sat, Mar 28, 2015 at 09:53:21AM +0100, Michael Kerrisk (man-pages) wrote:

quoted

So, please take a look at the page below. At this point,
I would most especially appreciate help with the FIXMEs.

For people who cannot read that troff gibberish (me)..

Ditto :)
 

NOTES
       Glibc does not provide a wrapper for this system call;  call  it  using
       syscall(2).

You might mention that pthread_mutex, pthread_condvar interfaces are
high level wrappers for the syscall and recommended to be used for
normal use cases. IIRC unnamed semaphores are implemented with futexes
as well.

Thanks,

	tglx
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