Sean Christopherson 8e1c69149f KVM: Avoid pfn_to_page() and vice versa when releasing pages ... Invert the order of KVM's page/pfn release helpers so that the "inner" helper operates on a page instead of a pfn. As pointed out by Linus[*], converting between struct page and a pfn isn't necessarily cheap, and that's not even counting the overhead of is_error_noslot_pfn() and kvm_is_reserved_pfn(). Even if the checks were dirt cheap, there's no reason to convert from a page to a pfn and back to a page, just to mark the page dirty/accessed or to put a reference to the page. Opportunistically drop a stale declaration of kvm_set_page_accessed() from kvm_host.h (there was no implementation). No functional change intended. [*] https://lore.kernel.org/all/CAHk-=wifQimj2d6npq-wCi5onYPjzQg4vyO4tFcPJJZr268cRw@mail.gmail.com Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220429010416.2788472-5-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2022-06-20 06:21:32 -04:00
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kvm	KVM: Avoid pfn_to_page() and vice versa when releasing pages	2022-06-20 06:21:32 -04:00
lib	Revert "irqbypass: do not start cons/prod when failed connect"	2021-05-15 10:26:55 +01:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00