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Futexes functionalities and improvements

From:  Pierre.Peiffer@bull.net
To:  akpm@linux-foundation.org
Subject:  [PATCH 2.6.21-rc3-mm2 0/4] Futexes functionalities and improvements
Date:  Tue, 13 Mar 2007 10:52:03 +0100
Cc:  mingo@elte.hu, drepper@redhat.com, linux-kernel@vger.kernel.org, jean-pierre.dion@bull.net
Archive-link:  Article, Thread

Hi Andrew,

	This is a re-send of a series of patches concerning futexes (here after is a short description)

	Could you consider them for inclusion in -mm tree ?

	All of them have already been discussed in January and have already been included in -rt for a
while. I think that we agreed to potentially include them in the -mm tree.

	Ulrich is specially interested by sys_futex64.

There are:
    * futex uses prio list : allows RT-threads to be woken in priority order
instead of FIFO order.
    * futex_wait uses hrtimer : allows the use of finer timer resolution.
    * futex_requeue_pi functionality : allows use of requeue optimization for
PI-mutexes/PI-futexes.
    * futex64 syscall : allows use of 64-bit futexes instead of 32-bit. 


Note: it does not inlcude the fix "PI state locking fix" sent yesterday by Ingo.

Thanks,

-- 
Pierre


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