Sean Christopherson b14b2690c5 KVM: Rename/refactor kvm_is_reserved_pfn() to kvm_pfn_to_refcounted_page() ... Rename and refactor kvm_is_reserved_pfn() to kvm_pfn_to_refcounted_page() to better reflect what KVM is actually checking, and to eliminate extra pfn_to_page() lookups. The kvm_release_pfn_*() an kvm_try_get_pfn() helpers in particular benefit from "refouncted" nomenclature, as it's not all that obvious why KVM needs to get/put refcounts for some PG_reserved pages (ZERO_PAGE and ZONE_DEVICE). Add a comment to call out that the list of exceptions to PG_reserved is all but guaranteed to be incomplete. The list has mostly been compiled by people throwing noodles at KVM and finding out they stick a little too well, e.g. the ZERO_PAGE's refcount overflowed and ZONE_DEVICE pages didn't get freed. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220429010416.2788472-10-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2022-06-20 06:21:35 -04:00
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kvm	KVM: Rename/refactor kvm_is_reserved_pfn() to kvm_pfn_to_refcounted_page()	2022-06-20 06:21:35 -04:00
lib	Revert "irqbypass: do not start cons/prod when failed connect"	2021-05-15 10:26:55 +01:00
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