On Mon, Nov 20, 2017 at 12:42:53PM -0800, Matthew Wilcox wrote: > > I disagree. The notion of whether a pointer is protected by RCU or not > is definitely not transient. Sure. But what about the memory it points to? It's just 'normal' kernel memory, there is nowhere something like some 'RCU memory', right? And the memory accessed through a __rcu annotated pointer can be legally be accessed with normal memory operation, because it's only the pointer that is concerned by the annotation? -- Luc
