Messages in this thread | | | Date | Wed, 13 Sep 2006 11:16:49 -0700 (PDT) | From | Christoph Lameter <> | Subject | Re: Why Semaphore Hardware-Dependent? |
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On Thu, 14 Sep 2006, Nick Piggin wrote:
> Oh really? OK I figured if ppc64 was OK then that would be enough, > but your large Altix systems did slip my mind.
Look at the ia64 rwsem implementation in include/asm-ia64/rwsem.h.
> That is a fair criticism... atomic_long it will have to be, then. > That will require a bit of atomic work to get atomic64_cmpxchg > available on all 64-bit architectures.
I would greatly appreciate having that.
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