fs/gfs2/Kconfig

   1 config GFS2_FS
   2         tristate "GFS2 file system support"
   3         depends on EXPERIMENTAL && (64BIT || (LSF && LBD))
   4         select FS_POSIX_ACL
   5         select CRC32
   6         help
   7           A cluster filesystem.
   8
   9           Allows a cluster of computers to simultaneously use a block device
  10           that is shared between them (with FC, iSCSI, NBD, etc...).  GFS reads
  11           and writes to the block device like a local filesystem, but also uses
  12           a lock module to allow the computers coordinate their I/O so
  13           filesystem consistency is maintained.  One of the nifty features of
  14           GFS is perfect consistency -- changes made to the filesystem on one
  15           machine show up immediately on all other machines in the cluster.
  16
  17           To use the GFS2 filesystem in a cluster, you will need to enable
  18           the locking module below. Documentation and utilities for GFS2 can
  19           be found here: http://sources.redhat.com/cluster
  20
  21           The "nolock" lock module is now built in to GFS2 by default.
  22
  23 config GFS2_FS_LOCKING_DLM
  24         tristate "GFS2 DLM locking module"
  25         depends on GFS2_FS && SYSFS && NET && INET && (IPV6 || IPV6=n)
  26         select IP_SCTP if DLM_SCTP
  27         select CONFIGFS_FS
  28         select DLM
  29         help
  30           Multiple node locking module for GFS2
  31
  32           Most users of GFS2 will require this module. It provides the locking
  33           interface between GFS2 and the DLM, which is required to use GFS2
  34           in a cluster environment.