Nick Piggin <[EMAIL PROTECTED]> wrote: > So I don't know why you're so worried about sparc32 and parisc while > preferring to introduce a worse default implementation that even your frv > architecture wants to override...?
I now think the base default should be a wrapper around the counting semaphores, because that is the easiest path (they already exist) and it's also the fastest path on some platforms. But I want to be able to override the implementation on such as FRV because I can do a better mutex than a counting semaphore there as I only have SWAP available as an atomic op. However, I would like to make the unconditional-exchange mutex a template that can be overridden so that other archs can use it with one Kconfig option and a few #defines in asm/system.h. David
