fs/gfs2/Kconfig

   1 config GFS2_FS
   2         tristate "GFS2 file system support"
   3         depends on EXPERIMENTAL
   4         select FS_POSIX_ACL
   5         help
   6         A cluster filesystem.
   7
   8         Allows a cluster of computers to simultaneously use a block device
   9         that is shared between them (with FC, iSCSI, NBD, etc...).  GFS reads
  10         and writes to the block device like a local filesystem, but also uses
  11         a lock module to allow the computers coordinate their I/O so
  12         filesystem consistency is maintained.  One of the nifty features of
  13         GFS is perfect consistency -- changes made to the filesystem on one
  14         machine show up immediately on all other machines in the cluster.
  15
  16         To use the GFS2 filesystem, you will need to enable one or more of
  17         the below locking modules. Documentation and utilities for GFS2 can
  18         be found here: http://sources.redhat.com/cluster
  19
  20 config GFS2_FS_LOCKING_NOLOCK
  21         tristate "GFS2 \"nolock\" locking module"
  22         depends on GFS2_FS
  23         help
  24         Single node locking module for GFS2.
  25
  26         Use this module if you want to use GFS2 on a single node without
  27         its clustering features. You can still take advantage of the
  28         large file support, and upgrade to running a full cluster later on
  29         if required.
  30
  31         If you will only be using GFS2 in cluster mode, you do not need this
  32         module.
  33
  34 config GFS2_FS_LOCKING_DLM
  35         tristate "GFS2 DLM locking module"
  36         depends on GFS2_FS
  37         select DLM
  38         help
  39         Multiple node locking module for GFS2
  40
  41         Most users of GFS2 will require this module. It provides the locking
  42         interface between GFS2 and the DLM, which is required to use GFS2
  43         in a cluster environment.
  44