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- config GFS2_FS
- tristate "GFS2 file system support"
- depends on EXPERIMENTAL && (64BIT || LBD)
- select DLM if GFS2_FS_LOCKING_DLM
- select CONFIGFS_FS if GFS2_FS_LOCKING_DLM
- select SYSFS if GFS2_FS_LOCKING_DLM
- select IP_SCTP if DLM_SCTP
- select FS_POSIX_ACL
- select CRC32
- help
- A cluster filesystem.
- 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.
- To use the GFS2 filesystem in a cluster, you will need to enable
- the locking module below. Documentation and utilities for GFS2 can
- be found here: http://sources.redhat.com/cluster
- The "nolock" lock module is now built in to GFS2 by default. If
- you want to use the DLM, be sure to enable HOTPLUG and IPv4/6
- networking.
- config GFS2_FS_LOCKING_DLM
- bool "GFS2 DLM locking"
- depends on (GFS2_FS!=n) && NET && INET && (IPV6 || IPV6=n) && HOTPLUG
- help
- Multiple node locking module for GFS2
- Most users of GFS2 will require this. It provides the locking
- interface between GFS2 and the DLM, which is required to use GFS2
- in a cluster environment.
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