On Tue, 12 Aug 2014, Pranith Kumar wrote: > It looks more like an inconsistency. These are the only three places > which use ACCESS_ONCE() for jiffies. Also, in doc/memory-barriers.txt, > it explicitly states that ACCESS_ONCE(jiffies) is not necessary. I > grepped for this usage after reading that document just to make sure > and found these three uses. > > But yes, there is no harm being done by using ACCESS_ONCE(). >
One could argue that doing ACCESS_ONCE(jiffies) is always better because of the context it which it is used rather than qualifying jiffies itself as volatile. -- 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/
