Provide server support for the NFSv3 ACL protocol extension

configname: CONFIG_NFSD_V3_ACL

Linux Kernel Configuration
└─>File systems
└─>Network File Systems
└─>Provide server support for the NFSv3 ACL protocol extension
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Implement the NFSv3 ACL protocol extension for manipulating POSIX
Access Control Lists on exported file systems. NFS clients should
be compiled with the NFSv3 ACL protocol extension; see the
CONFIG_NFS_V3_ACL option. If unsure, say N.