KVM: MMU: remove count_rmaps()

Nothing is checked in count_rmaps(), so remove it

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 0d91f60..0bff4d5 100644 (file)
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3606,43 +3606,6 @@ static void audit_mappings(struct kvm_vcpu *vcpu)
                                                    2);
 }
 
-static int count_rmaps(struct kvm_vcpu *vcpu)
-{
-       struct kvm *kvm = vcpu->kvm;
-       struct kvm_memslots *slots;
-       int nmaps = 0;
-       int i, j, k, idx;
-
-       idx = srcu_read_lock(&kvm->srcu);
-       slots = kvm_memslots(kvm);
-       for (i = 0; i < KVM_MEMORY_SLOTS; ++i) {
-               struct kvm_memory_slot *m = &slots->memslots[i];
-               struct kvm_rmap_desc *d;
-
-               for (j = 0; j < m->npages; ++j) {
-                       unsigned long *rmapp = &m->rmap[j];
-
-                       if (!*rmapp)
-                               continue;
-                       if (!(*rmapp & 1)) {
-                               ++nmaps;
-                               continue;
-                       }
-                       d = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
-                       while (d) {
-                               for (k = 0; k < RMAP_EXT; ++k)
-                                       if (d->sptes[k])
-                                               ++nmaps;
-                                       else
-                                               break;
-                               d = d->more;
-                       }
-               }
-       }
-       srcu_read_unlock(&kvm->srcu, idx);
-       return nmaps;
-}
-
 void inspect_spte_has_rmap(struct kvm *kvm, u64 *sptep)
 {
        unsigned long *rmapp;
@@ -3704,7 +3667,6 @@ static void check_mappings_rmap(struct kvm_vcpu *vcpu)
 static void audit_rmap(struct kvm_vcpu *vcpu)
 {
        check_mappings_rmap(vcpu);
-       count_rmaps(vcpu);
 }
 
 static void audit_write_protection(struct kvm_vcpu *vcpu)