Messages in this thread | | | Date | Mon, 2 Mar 2015 11:00:10 +0100 | From | Peter Zijlstra <> | Subject | Re: [RFC][PATCH 1/9] klp: Fix obvious RCU fail |
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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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