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891f115960
Drop everything except the "tdp_mmu_spte_changed" tracepoint part of __handle_changed_spte() when aging SPTEs in the TDP MMU, as clearing the accessed status doesn't affect the SPTE's shadow-present status, whether or not the SPTE is a leaf, or change the PFN. I.e. none of the functional updates handled by __handle_changed_spte() are relevant. Losing __handle_changed_spte()'s sanity checks does mean that a bug could theoretical go unnoticed, but that scenario is extremely unlikely, e.g. would effectively require a misconfigured MMU or a locking bug elsewhere. Link: https://lore.kernel.org/all/Y9HcHRBShQgjxsQb@google.com Signed-off-by: Vipin Sharma <vipinsh@google.com> Reviewed-by: David Matlack <dmatlack@google.com> [sean: massage changelog] Link: https://lore.kernel.org/r/20230321220021.2119033-11-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> |
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