On Tue, Aug 14, 2012 at 10:51:39PM +0300, Michael S. Tsirkin wrote:

What I think you should do is use rcu for access.
And here sync rcu before freeing.
Maybe an overkill but at least a documented synchronization
primitive, and it is very light weight.

I liked your suggestion on barriers, as well.

Rik, Mel ?

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