https://manpages.ubuntu.com/manpages/stonking/man9/vm_page_aflag_set.9freebsd.html
Ubuntu Manpage: vm_page_aflag_clear,
ubuntumanpagevmclear
https://manpages.ubuntu.com/manpages/stonking/man9/vm_page_reference.9freebsd.html
Ubuntu Manpage: vm_page_aflag_clear,
ubuntumanpagevmclear
https://manpages.ubuntu.com/manpages/stonking/man9/vm_page_aflag.9freebsd.html
Ubuntu Manpage: vm_page_aflag_clear,
ubuntumanpagevmclear