Futexes functionalities and improvements
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- v1 Latest4 patches 8 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/4 | futex priority based wakeupkernel/ | +49 | 0 replies | |
| 2/4 | Make futex_wait() use an hrtimer for timeoutinclude/ kernel/ kernel/ | +43 | 0 replies | |
| 3/4 | futex_requeue_pi optimizationinclude/ kernel/ kernel/ +2 more | +555 | 4 replies | |
| 4/4 | sys_futex64 : allows 64bit futexesinclude/ include/ include/ +4 more | +301 | 4 replies |
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Cover letter [PATCH 2.6.21-rc3-mm2 0/4] Futexes functionalities and improvements
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,
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Pierre