projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b3b94faa | 1 | config GFS2_FS |
| b5ea3e1e | 2 | tristate "GFS2 file system support" |
| 10528497 | 3 | depends on EXPERIMENTAL && (64BIT || (LSF && LBD)) |
| b5ea3e1e | 4 | select FS_POSIX_ACL |
| fa2ecfc5 | 5 | select CRC32 |
| b5ea3e1e | 6 | help |
| 9beeb9f3 | 7 | A cluster filesystem. |
| b5ea3e1e | 8 | |
| 9beeb9f3 RD |
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. | |
| b3b94faa | 16 | |
| 048bca22 SW |
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 | |
| 9beeb9f3 | 19 | be found here: http://sources.redhat.com/cluster |
| b3b94faa | 20 | |
| 048bca22 | 21 | The "nolock" lock module is now built in to GFS2 by default. |
| b3b94faa DT |
22 | |
| 23 | config GFS2_FS_LOCKING_DLM | |
| 24 | tristate "GFS2 DLM locking module" | |
| 00117277 | 25 | depends on GFS2_FS && SYSFS && NET && INET && (IPV6 || IPV6=n) |
| 1003f069 SW |
26 | select IP_SCTP if DLM_SCTP |
| 27 | select CONFIGFS_FS | |
| b3b94faa DT |
28 | select DLM |
| 29 | help | |
| 9beeb9f3 | 30 | Multiple node locking module for GFS2 |
| b3b94faa | 31 | |
| 9beeb9f3 RD |
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. |