and MOVE_MOUNT_BENEATH
≥ 6.6 for quota support on tmpfs
≥ 6.7 for cgroup2fs memory_hugetlb_accounting option
+ ≥ 6.8 for STATX_MNT_ID_UNIQUE
≥ 6.9 for pidfs
≥ 6.10 for fcntl(F_DUPFD_QUERY), unprivileged linkat(AT_EMPTY_PATH),
and block device 'partscan' sysfs attribute
+ ≥ 6.12 for AT_HANDLE_MNT_ID_UNIQUE
≥ 6.13 for PIDFD_GET_INFO and {set,remove}xattrat()
≥ 6.16 for coredump pattern '%F' (pidfd) specifier and SO_PASSRIGHTS