KVM: introduce KVM_HVA_ERR_BAD

Then, remove bad_hva and inline kvm_is_error_hva

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 1 insertions, 12 deletions

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index c89d1b5129e4..e3e1658c491d 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -931,17 +931,6 @@ void kvm_disable_largepages(void)
 }
 EXPORT_SYMBOL_GPL(kvm_disable_largepages);
 
-static inline unsigned long bad_hva(void)
-{
-        return PAGE_OFFSET;
-}
-
-int kvm_is_error_hva(unsigned long addr)
-{
-        return addr == bad_hva();
-}
-EXPORT_SYMBOL_GPL(kvm_is_error_hva);
-
 struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
 {
         return __gfn_to_memslot(kvm_memslots(kvm), gfn);
@@ -988,7 +977,7 @@ static unsigned long gfn_to_hva_many(struct kvm_memory_slot *slot, gfn_t gfn,
                                      gfn_t *nr_pages)
 {
         if (!slot || slot->flags & KVM_MEMSLOT_INVALID)
-                return bad_hva();
+                return KVM_HVA_ERR_BAD;
 
         if (nr_pages)
                 *nr_pages = slot->npages - (gfn - slot->base_gfn);