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 and > SMP, it was ok to have the ->owner field conditional a bit > flexible. However by adding a new variable to the matter, > we can waste space with the unused field, ie: CONFIG_SMP && > (!CONFIG_MUTEX_SPIN_ON_OWNER && !CONFIG_DEBUG_MUTEX). > > Signed-off-by: Davidlohr Bueso <davidl...@hp.com>
Acked-by: Jason Low <jason.l...@hp.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
