KVM: s390: Replace clear_user with kvm_clear_guest

kvm_clear_guest also does the dirty tracking for us, which we want to
have.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index eb0eb60..c4da375 100644 (file)
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -956,7 +956,7 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
                        return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
 
                if (vcpu->run->s.regs.gprs[reg1] & PFMF_CF) {
-                       if (clear_user((void __user *)useraddr, PAGE_SIZE))
+                       if (kvm_clear_guest(vcpu->kvm, start, PAGE_SIZE))
                                return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
                }