On Tue, 2014-01-28 at 12:23 -0800, Paul E. McKenney wrote: > On Tue, Jan 28, 2014 at 11:13:13AM -0800, Jason Low wrote: > > ... > > if (!owner && (need_resched() || rt_task(task))) > > - goto slowpath; > > + break; > > > > /* > > * The cpu_relax() call is a compiler barrier which forces > > @@ -514,6 +511,7 @@ __mutex_lock_common(struct mutex *lock, long state, > > unsigned int subclass, > > */ > > arch_mutex_cpu_relax(); > > } > > + mspin_unlock(MLOCK(lock), &node); > > slowpath: > > Are there any remaining goto statements to slowpath? If so, they need > to release the lock. If not, this label should be removed.
We still have the !mutex_can_spin_on_owner case. Thanks, Davidlohr -- 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/
