2006-01-16 16:50:04 +00:00
config GFS2_FS
2006-04-24 14:14:42 -04:00
tristate "GFS2 file system support"
2010-08-11 09:53:47 +01:00
depends on (64BIT || LBDAF)
2006-04-24 14:14:42 -04:00
select FS_POSIX_ACL
2006-11-20 10:04:49 -05:00
select CRC32
2018-01-17 00:01:33 +01:00
select CRYPTO
select CRYPTO_CRC32C
2009-09-15 09:59:02 +01:00
select QUOTACTL
2017-02-16 21:13:54 +01:00
select FS_IOMAP
2006-04-24 14:14:42 -04:00
help
2007-01-30 14:30:08 -08:00
A cluster filesystem.
2006-04-24 14:14:42 -04:00
2007-01-30 14:30:08 -08:00
Allows a cluster of computers to simultaneously use a block device
that is shared between them (with FC, iSCSI, NBD, etc...). GFS reads
and writes to the block device like a local filesystem, but also uses
a lock module to allow the computers coordinate their I/O so
filesystem consistency is maintained. One of the nifty features of
GFS is perfect consistency -- changes made to the filesystem on one
machine show up immediately on all other machines in the cluster.
2006-01-16 16:50:04 +00:00
2008-05-23 14:46:04 +01:00
To use the GFS2 filesystem in a cluster, you will need to enable
the locking module below. Documentation and utilities for GFS2 can
2007-01-30 14:30:08 -08:00
be found here: http://sources.redhat.com/cluster
2006-01-16 16:50:04 +00:00
2009-01-12 10:43:39 +00:00
The "nolock" lock module is now built in to GFS2 by default. If
2013-05-21 13:49:35 +10:00
you want to use the DLM, be sure to enable IPv4/6 networking.
2006-01-16 16:50:04 +00:00
config GFS2_FS_LOCKING_DLM
2009-01-12 10:43:39 +00:00
bool "GFS2 DLM locking"
2012-03-23 18:06:18 -04:00
depends on (GFS2_FS!=n) && NET && INET && (IPV6 || IPV6=n) && \
2013-05-21 13:49:35 +10:00
CONFIGFS_FS && SYSFS && (DLM=y || DLM=GFS2_FS)
2006-01-16 16:50:04 +00:00
help
2007-01-30 14:30:08 -08:00
Multiple node locking module for GFS2
2006-01-16 16:50:04 +00:00
2009-01-12 10:43:39 +00:00
Most users of GFS2 will require this. It provides the locking
2007-01-30 14:30:08 -08:00
interface between GFS2 and the DLM, which is required to use GFS2
in a cluster environment.