__VM_UFFD_FLAGS
return vma->vm_flags & __VM_UFFD_FLAGS;
vm_flags &= __VM_UFFD_FLAGS;
(vma->vm_flags & ~__VM_UFFD_FLAGS) | vm_flags);
!!(vma->vm_flags & __VM_UFFD_FLAGS));
VM_WARN_ON_ONCE(reason & ~__VM_UFFD_FLAGS);
!!(cur->vm_flags & __VM_UFFD_FLAGS));
!!(cur->vm_flags & __VM_UFFD_FLAGS));