On Sun, 2014-07-27 at 22:18 -0700, Davidlohr Bueso wrote:
> 4badad35 (locking/mutex: Disable optimistic spinning on some
> architectures) added a ARCH_SUPPORTS_ATOMIC_RMW flag to
> disable the mutex optimistic feature on specific archs.
>
> Because CONFIG_MUTEX_SPIN_ON_OWNER only depended on DEBUG
4badad35 (locking/mutex: Disable optimistic spinning on some
architectures) added a ARCH_SUPPORTS_ATOMIC_RMW flag to
disable the mutex optimistic feature on specific archs.
Because CONFIG_MUTEX_SPIN_ON_OWNER only depended on DEBUG and
SMP, it was ok to have the ->owner field conditional a bit
flex
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