2 tristate "GFS2 file system support"
3 depends on EXPERIMENTAL && (64BIT || LBD)
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.
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
21 The "nolock" lock module is now built in to GFS2 by default.
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
30 Multiple node locking module for GFS2
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.