VM_LOCKED_MASK
vm_flags_t vm_flags = vma->vm_flags & ~VM_LOCKED_MASK;
vm_flags_t svm_flags = svma->vm_flags & ~VM_LOCKED_MASK;
newflags = vma->vm_flags & ~VM_LOCKED_MASK;
current->mm->def_flags &= ~VM_LOCKED_MASK;
newflags = vma->vm_flags & ~VM_LOCKED_MASK;
vm_flags_init(vma, vm_flags & ~VM_LOCKED_MASK);
vm_flags_clear(tmp, VM_LOCKED_MASK);
vm_flags_clear(vrm->vma, VM_LOCKED_MASK);
vm_flags_clear(vma, VM_LOCKED_MASK);