kernelconfig_penguin

9P POSIX Access Control Lists

configname: CONFIG_9P_FS_POSIX_ACL

Linux Kernel Configuration
└─> File systems
└─> Network File Systems
└─> 9P POSIX Access Control Lists

POSIX Access Control Lists (ACLs) support permissions for users and
groups beyond the owner/group/world scheme.

If you don't know what Access Control Lists are, say N