| Date | Sat, 04 Mar 2017 10:27:17 +0100 | From | Peter Zijlstra <> | Subject | [PATCH -v5 00/14] the saga of FUTEX_UNLOCK_PI wobbles continues |
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Hi all,
Here be the 5th iteration of these patches; which strive to unlock the rt_mutex without holding hb->lock.
In total this patch-set is very much like the previous one (including the 'late' fix) but it gets there in a slightly different -- and hopefully easier to understand -- route.
The last 3 patches could be superfluous if we can proof that the -EAGAIN retry in futex_unlock_pi() isn't a problem for bounded execution (or are willing to accept it). In this case the patch-set ends up simpler than before.
I sincerely hope this is the last of it; but please consider carefully, there be dragons here.
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