KVM: arm64: Use get_page() instead of kvm_get_pfn()

When mapping a THP, we are guaranteed that the page isn't reserved,
and we can safely avoid the kvm_is_reserved_pfn() call.

Replace kvm_get_pfn() with get_page(pfn_to_page()).

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210726153552.1535838-6-maz@kernel.org

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 116a2910a4a4a1bddb5a547cf9ecad5b8ae15fd5..6e002d30a478921bf5fcc57fe775f629d6d97c39 100644 (file)
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -840,7 +840,7 @@ transparent_hugepage_adjust(struct kvm *kvm, struct kvm_memory_slot *memslot,
                *ipap &= PMD_MASK;
                kvm_release_pfn_clean(pfn);
                pfn &= ~(PTRS_PER_PMD - 1);
-               kvm_get_pfn(pfn);
+               get_page(pfn_to_page(pfn));
                *pfnp = pfn;
 
                return PMD_SIZE;