JFS POSIX Access Control Lists

configname: CONFIG_JFS_POSIX_ACL

Linux Kernel Configuration
└─>File systems
└─>JFS POSIX Access Control Lists
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
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