On Fri, 2013-06-14 at 14:17 -0400, Waiman Long wrote: > > With some minor changes, the current patch can be modified to support > debugging lock for 32-bit system. For 64-bit system, we can apply a > similar concept for debugging lock with cmpxchg_double. However, for > architecture that does not have cmpxchg_double support, it will be out > of luck and we probably couldn't support the same feature in debugging > mode. It will have to fall back to taking the lock.
That means only x86_64 and s390 would benefit from it ... I'm sure we can do better :-) Cheers, Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
