Re: [RFC][PATCH 1/9] klp: Fix obvious RCU fail

[Peter Zijlstra]

On Mon, Mar 02, 2015 at 10:13:05AM +0100, Jiri Kosina wrote:
> On Mon, 2 Mar 2015, Peter Zijlstra wrote:

> > That said; I do have a follow up question on that code. So now you've
> > successfully obtained an address in module space; but the moment you
> > release that RCU-sched lock, the module can be gone.
> > 
> > How does the whole live patching stuff deal with module removal during
> > patching?
> 
> We have a module notifier that serializes using klp_mutex with the 
> patching. Do you see a problem there?

Should work I think; might be worth noting this in a comment above this
lookup though.
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