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Re: [PATCH 2.5.64] Real-time futexes (priority inheritance/protection/robust support) take 4



Inaky Perez-Gonzalez <inaky perez-gonzalez intel com> schrieb am 22.03.03 06:50:06:
[...]
> Patch at: http://sost.net/pub/linux/rtfutex-4.patch

+  + POSIX contradictions 
[...]
+  This is kind of a divagation, it does not make too much sense for me
+  and I don't see it clear (POSIX wise) ... do they refer to the
+  thread priority or the effective priority after applying futex
+  adjustements? 

They refer to the "effective priority", I think. Probably, the reason 
is that if you nest PI and PP locks then you may end up having the 
Unbounded Priority Inversion (TM) problem if the locker's "effective 
priority" (inherited one) is higher than the ceiling. I may be missing 
and/or misunderstanding something, of course.

regards,
alexander.

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