If you say Y here, you will get experimental support for Plan 9 resource sharing via the 9P2000 protocol. See <http://v9fs.sf.net> for more information. If unsure, say N.
Choose Y here to enable persistent, read-only local caching support for 9p clients using FS-Cache
POSIX Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. To learn more about Access Control Lists, visit the POSIX ACLs for Linux website <http://acl.bestbits.at/>. If you don't know what Access Control Lists are, say N