[PATCH 2.6.21-rc3-mm2 0/4] Futexes functionalities and improvements

Pierre.Peiffer
2007-03-13T09:56:58Z

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