On Fri, Nov 25, 2016 at 09:52:50AM -0800, Linus Torvalds wrote: > READ/WRITE_ONCE() are atomic *WHEN*THAT*IS*POSSIBLE*.
> But sometimes it's not going to be atomic. That's the problem. Common code may rely on something being atomic when that's only true on a subset of platforms. On others, it's silently "fixed" into something that isn't atomic, and we get no diagnostic. The bug lurks beneath the surface. Thanks, Mark.
