arch/arm64/kvm: use vma_lookup() instead of find_vma_intersection()

vma_lookup() finds the vma of a specific address with a cleaner interface
and is more readable.

Link: https://lkml.kernel.org/r/20210521174745.2219620-5-Liam.Howlett@Oracle.comSigned-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/arm64/kvm/mmu.c

@@ -855,7 +855,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 
 	/* Let's check if we will get back a huge page backed by hugetlbfs */
 	mmap_read_lock(current->mm);
-	vma = find_vma_intersection(current->mm, hva, hva + 1);
+	vma = vma_lookup(current->mm, hva);
 	if (unlikely(!vma)) {
 		kvm_err("Failed to find VMA for hva 0x%lx\n", hva);
 		mmap_read_unlock(current->mm);