Messages in this thread |  | | | Date | Sun, 14 Jan 2001 21:27:37 -0800 | | From | george anzinger <> | | Subject | Re: [linux-audio-dev] low-latency scheduling patch for 2.4.0 |
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"David S. Miller" wrote: > > Nigel Gamble writes: > > That's why MontaVista's kernel preemption patch uses sleeping mutex > > locks instead of spinlocks for the long held locks. > > Anyone who uses sleeping mutex locks is asking for trouble. Priority > inversion is an issue I dearly hope we never have to deal with in the > Linux kernel, and sleeping SMP mutex locks lead to exactly this kind > of problem. > Exactly why we are going to us priority inherit mutexes. This handles the inversion nicely.
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