| config GFS2_FS | |
| tristate "GFS2 file system support" | |
| depends on EXPERIMENTAL | |
| select FS_POSIX_ACL | |
| 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, you will need to enable one or more of | |
| the below locking modules. Documentation and utilities for GFS2 can | |
| be found here: http://sources.redhat.com/cluster | |
| config GFS2_FS_LOCKING_NOLOCK | |
| tristate "GFS2 \"nolock\" locking module" | |
| depends on GFS2_FS | |
| help | |
| Single node locking module for GFS2. | |
| Use this module if you want to use GFS2 on a single node without | |
| its clustering features. You can still take advantage of the | |
| large file support, and upgrade to running a full cluster later on | |
| if required. | |
| If you will only be using GFS2 in cluster mode, you do not need this | |
| module. | |
| config GFS2_FS_LOCKING_DLM | |
| tristate "GFS2 DLM locking module" | |
| depends on GFS2_FS | |
| select DLM | |
| help | |
| Multiple node locking module for GFS2 | |
| Most users of GFS2 will require this module. It provides the locking | |
| interface between GFS2 and the DLM, which is required to use GFS2 | |
| in a cluster environment. | |