KVM: remove vm mmap method

It was used in conjunction with KVM_SET_MEMORY_REGION ioctl which was
removed by b74a07beed0 in 2010, QEMU stopped using it in 2008, so
it is time to remove the code finally.

Signed-off-by: Gleb Natapov <gleb@redhat.com>

1 files changed, 0 insertions, 32 deletions

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 7a317a7f9025..10015d6e4d08 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2528,44 +2528,12 @@ out:
 }
 #endif
 
-static int kvm_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-        struct page *page[1];
-        unsigned long addr;
-        int npages;
-        gfn_t gfn = vmf->pgoff;
-        struct kvm *kvm = vma->vm_file->private_data;
-
-        addr = gfn_to_hva(kvm, gfn);
-        if (kvm_is_error_hva(addr))
-                return VM_FAULT_SIGBUS;
-
-        npages = get_user_pages(current, current->mm, addr, 1, 1, 0, page,
-                                NULL);
-        if (unlikely(npages != 1))
-                return VM_FAULT_SIGBUS;
-
-        vmf->page = page[0];
-        return 0;
-}
-
-static const struct vm_operations_struct kvm_vm_vm_ops = {
-        .fault = kvm_vm_fault,
-};
-
-static int kvm_vm_mmap(struct file *file, struct vm_area_struct *vma)
-{
-        vma->vm_ops = &kvm_vm_vm_ops;
-        return 0;
-}
-
 static struct file_operations kvm_vm_fops = {
         .release        = kvm_vm_release,
         .unlocked_ioctl = kvm_vm_ioctl,
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = kvm_vm_compat_ioctl,
 #endif
-        .mmap           = kvm_vm_mmap,
         .llseek         = noop_llseek,
 };