Re: [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch

> So, to sum up, if this path is persued, mutexes will be a bloody
> disaster on ARM.  We'd be far better off sticking to semaphores
> and ignoring this mutex stuff.

on x86 the fastpath is the same for both basically.. is there a
fundamental reason it can't be for ARM?

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