Root/fs/gfs2/Kconfig

1config GFS2_FS
2    tristate "GFS2 file system support"
3    depends on (64BIT || LBDAF)
4    select DLM if GFS2_FS_LOCKING_DLM
5    select CONFIGFS_FS if GFS2_FS_LOCKING_DLM
6    select SYSFS if GFS2_FS_LOCKING_DLM
7    select IP_SCTP if DLM_SCTP
8    select FS_POSIX_ACL
9    select CRC32
10    select QUOTACTL
11    help
12      A cluster filesystem.
13
14      Allows a cluster of computers to simultaneously use a block device
15      that is shared between them (with FC, iSCSI, NBD, etc...). GFS reads
16      and writes to the block device like a local filesystem, but also uses
17      a lock module to allow the computers coordinate their I/O so
18      filesystem consistency is maintained. One of the nifty features of
19      GFS is perfect consistency -- changes made to the filesystem on one
20      machine show up immediately on all other machines in the cluster.
21
22      To use the GFS2 filesystem in a cluster, you will need to enable
23      the locking module below. Documentation and utilities for GFS2 can
24      be found here: http://sources.redhat.com/cluster
25
26      The "nolock" lock module is now built in to GFS2 by default. If
27      you want to use the DLM, be sure to enable HOTPLUG and IPv4/6
28      networking.
29
30config GFS2_FS_LOCKING_DLM
31    bool "GFS2 DLM locking"
32    depends on (GFS2_FS!=n) && NET && INET && (IPV6 || IPV6=n) && HOTPLUG
33    help
34      Multiple node locking module for GFS2
35
36      Most users of GFS2 will require this. It provides the locking
37      interface between GFS2 and the DLM, which is required to use GFS2
38      in a cluster environment.
39

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