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config GFS2_FS
        tristate "GFS2 file system support"
        depends on EXPERIMENTAL
        select FS_POSIX_ACL
        select CRC32
        help
          A cluster filesystem.

          Allows a cluster of computers to simultaneously use a block device
          that is shared between them (with FC, iSCSI, NBD, etc...).  GFS reads
          and writes to the block device like a local filesystem, but also uses
          a lock module to allow the computers coordinate their I/O so
          filesystem consistency is maintained.  One of the nifty features of
          GFS is perfect consistency -- changes made to the filesystem on one
          machine show up immediately on all other machines in the cluster.

          To use the GFS2 filesystem, you will need to enable one or more of
          the below locking modules. Documentation and utilities for GFS2 can
          be found here: http://sources.redhat.com/cluster

config GFS2_FS_LOCKING_NOLOCK
        tristate "GFS2 \"nolock\" locking module"
        depends on GFS2_FS
        help
          Single node locking module for GFS2.

          Use this module if you want to use GFS2 on a single node without
          its clustering features. You can still take advantage of the
          large file support, and upgrade to running a full cluster later on
          if required.

          If you will only be using GFS2 in cluster mode, you do not need this
          module.

config GFS2_FS_LOCKING_DLM
        tristate "GFS2 DLM locking module"
        depends on GFS2_FS && SYSFS && NET && INET && (IPV6 || IPV6=n)
        select IP_SCTP if DLM_SCTP
        select CONFIGFS_FS
        select DLM
        help
          Multiple node locking module for GFS2

          Most users of GFS2 will require this module. It provides the locking
          interface between GFS2 and the DLM, which is required to use GFS2
          in a cluster environment.