On 18 Dec 2014 at 21:07, Rogelio M. Serrano Jr. wrote: > whats the difference between: > > atomic_inc(&port->count); > > and > > spin_lock_irq(&port->lock); > ++port->count; > spin_unlock_irq(&port->lock);
in PaX this kind of change brings the ->count accesses under the coverage of the REFCOUNT feature. if the kernel had a non-atomic refcount type and corresponding accessors, they'd be used here instead. -- 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/
