Man pages matching name ioctl_xfs_scrub_metadata in section 2:

ioctl_xfs_scrub_metadata.2.en	debian 10 / xfslibs-dev
ioctl_xfs_scrub_metadata.2.en	debian 11 / xfslibs-dev
ioctl_xfs_scrub_metadata.2.en	debian 12 / xfslibs-dev