That commit is included in the development version (coming Ubuntu 23.04).
$ lsb_release -irs Ubuntu 23.04 $ dpkg-query -W manpages-dev manpages-dev 6.01-1 $ man 2 copy_file_range | grep EOPNOTSUPP EOPNOTSUPP (since Linux 5.12)
That commit is included in the development version (coming Ubuntu 23.04).
$ lsb_release -irs
Ubuntu
23.04
$ dpkg-query -W manpages-dev
manpages-dev 6.01-1
$ man 2 copy_file_range | grep EOPNOTSUPP
EOPNOTSUPP (since Linux 5.12)