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 bekv1XWU 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choice makes sense: it allows embedding the wait state from > > the initial notifier call into the pass structure. Patch [6] shows this > > by attaching the issued TLB invalidation fences to the pass. Since a > > single notifier may be invoked multiple times with different ranges but > > the same seqno, > > That should be explained, but also seems to be a bit of a different > issue.. > > If the design is really to only have two passes and this linked list > is about retaining state then there should not be so much freedom to > have more passes. I’ll let Thomas weigh in on whether we really need more than two passes; my feeling is that two passes are likely sufficient. It’s also worth noting that the linked list has an added benefit: the notifier tree only needs to be walked once (a small time-complexity win). Matt > > Jason