KVM: remove async parameter of hva_to_pfn_remapped()

The async parameter of hva_to_pfn_remapped() is not used, so remove it.
Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
Message-Id: <20220124020456.156386-1-xianting.tian@linux.alibaba.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

virt/kvm/kvm_main.c

@@ -2463,9 +2463,8 @@ static int kvm_try_get_pfn(kvm_pfn_t pfn)
 }
 
 static int hva_to_pfn_remapped(struct vm_area_struct *vma,
-			       unsigned long addr, bool *async,
-			       bool write_fault, bool *writable,
-			       kvm_pfn_t *p_pfn)
+			       unsigned long addr, bool write_fault,
+			       bool *writable, kvm_pfn_t *p_pfn)
 {
 	kvm_pfn_t pfn;
 	pte_t *ptep;
@@ -2575,7 +2574,7 @@ kvm_pfn_t hva_to_pfn(unsigned long addr, bool atomic, bool *async,
 	if (vma == NULL)
 		pfn = KVM_PFN_ERR_FAULT;
 	else if (vma->vm_flags & (VM_IO | VM_PFNMAP)) {
-		r = hva_to_pfn_remapped(vma, addr, async, write_fault, writable, &pfn);
+		r = hva_to_pfn_remapped(vma, addr, write_fault, writable, &pfn);
 		if (r == -EAGAIN)
 			goto retry;
 		if (r < 0)