fs/gfs2/Kconfig

   1 config GFS2_FS
   2         tristate "GFS2 file system support"
   3         depends on EXPERIMENTAL
   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, you will need to enable one or more of
  18           the below locking modules. Documentation and utilities for GFS2 can
  19           be found here: http://sources.redhat.com/cluster
  20
  21 config GFS2_FS_LOCKING_NOLOCK
  22         tristate "GFS2 \"nolock\" locking module"
  23         depends on GFS2_FS
  24         help
  25           Single node locking module for GFS2.
  26
  27           Use this module if you want to use GFS2 on a single node without
  28           its clustering features. You can still take advantage of the
  29           large file support, and upgrade to running a full cluster later on
  30           if required.
  31
  32           If you will only be using GFS2 in cluster mode, you do not need this
  33           module.
  34
  35 config GFS2_FS_LOCKING_DLM
  36         tristate "GFS2 DLM locking module"
  37         depends on GFS2_FS && SYSFS && NET && INET && (IPV6 || IPV6=n)
  38         select IP_SCTP if DLM_SCTP
  39         select CONFIGFS_FS
  40         select DLM
  41         help
  42           Multiple node locking module for GFS2
  43
  44           Most users of GFS2 will require this module. It provides the locking
  45           interface between GFS2 and the DLM, which is required to use GFS2
  46           in a cluster environment.