On Tue, 2017-08-22 at 15:18 +0200, Frederic Barrat wrote: > > Or you could just incrementer my counter. Just make sure you increment > > it at most once per CXL context and decrement when the context is gone. > > Ah great, I didn't dare messing with your counter, it makes it easier. > Arguably what happens on those accelerators is pretty close to an active > cpu. > > Once it is merged, I'm going to have to backport your patch (and an > update to mine) to the p9-supporting distros. From a quick look, your > patch, i.e."[PATCH 5/6] powerpc/mm: Optimize detection of thread local > mm's" is completely independent from the rest of the series, right?
We also need the memory barrier fix but yes. Cheers, Ben.