On Thu, Nov 21, 2013 at 01:31:27PM -0800, Paul E. McKenney wrote: > From: "Paul E. McKenney" <[email protected]> > > The Documentation/memory-barriers.txt file was written before the need > for ACCESS_ONCE() was fully appreciated. It therefore contains no > ACCESS_ONCE() calls, which can be a problem when people lift examples > from it. This commit therefore adds ACCESS_ONCE() calls. >
Under the 'COMPILER BARRIER' section we state that: "This is a general barrier - lesser varieties of compiler barrier do not exist." One could argue ACCESS_ONCE() is such a lesser barrier. -- 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/
