Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fix from Michael Tsirkin:
 "Fix a single, long-standing issue with kick pass-through vdpa"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost-vdpa: switch to use vmf_insert_pfn() in the fault handler

Author: torvalds

drivers/vhost/vdpa.c

@@ -1481,13 +1481,7 @@ static vm_fault_t vhost_vdpa_fault(struct vm_fault *vmf)
 
 	notify = ops->get_vq_notification(vdpa, index);
 
-	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-	if (remap_pfn_range(vma, vmf->address & PAGE_MASK,
-			    PFN_DOWN(notify.addr), PAGE_SIZE,
-			    vma->vm_page_prot))
-		return VM_FAULT_SIGBUS;
-
-	return VM_FAULT_NOPAGE;
+	return vmf_insert_pfn(vma, vmf->address & PAGE_MASK, PFN_DOWN(notify.addr));
 }
 
 static const struct vm_operations_struct vhost_vdpa_vm_ops = {