MFILL_ATOMIC_WP
flags |= MFILL_ATOMIC_WP;
bool wp_enabled = (flags & MFILL_ATOMIC_WP);
if (flags & MFILL_ATOMIC_WP)
if ((flags & MFILL_ATOMIC_WP) && !(dst_vma->vm_flags & VM_UFFD_WP))