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Commit | Line | Data |
---|---|---|
b3b94faa | 1 | config GFS2_FS |
b5ea3e1e | 2 | tristate "GFS2 file system support" |
90c699a9 | 3 | depends on EXPERIMENTAL && (64BIT || LBDAF) |
f057f6cd SW |
4 | select DLM if GFS2_FS_LOCKING_DLM |
5 | select CONFIGFS_FS if GFS2_FS_LOCKING_DLM | |
6 | select SYSFS if GFS2_FS_LOCKING_DLM | |
7 | select IP_SCTP if DLM_SCTP | |
b5ea3e1e | 8 | select FS_POSIX_ACL |
fa2ecfc5 | 9 | select CRC32 |
fe64d517 | 10 | select SLOW_WORK |
cc632e7f | 11 | select QUOTACTL |
b5ea3e1e | 12 | help |
9beeb9f3 | 13 | A cluster filesystem. |
b5ea3e1e | 14 | |
9beeb9f3 RD |
15 | Allows a cluster of computers to simultaneously use a block device |
16 | that is shared between them (with FC, iSCSI, NBD, etc...). GFS reads | |
17 | and writes to the block device like a local filesystem, but also uses | |
18 | a lock module to allow the computers coordinate their I/O so | |
19 | filesystem consistency is maintained. One of the nifty features of | |
20 | GFS is perfect consistency -- changes made to the filesystem on one | |
21 | machine show up immediately on all other machines in the cluster. | |
b3b94faa | 22 | |
048bca22 SW |
23 | To use the GFS2 filesystem in a cluster, you will need to enable |
24 | the locking module below. Documentation and utilities for GFS2 can | |
9beeb9f3 | 25 | be found here: http://sources.redhat.com/cluster |
b3b94faa | 26 | |
f057f6cd SW |
27 | The "nolock" lock module is now built in to GFS2 by default. If |
28 | you want to use the DLM, be sure to enable HOTPLUG and IPv4/6 | |
29 | networking. | |
b3b94faa DT |
30 | |
31 | config GFS2_FS_LOCKING_DLM | |
f057f6cd SW |
32 | bool "GFS2 DLM locking" |
33 | depends on (GFS2_FS!=n) && NET && INET && (IPV6 || IPV6=n) && HOTPLUG | |
b3b94faa | 34 | help |
9beeb9f3 | 35 | Multiple node locking module for GFS2 |
b3b94faa | 36 | |
f057f6cd | 37 | Most users of GFS2 will require this. It provides the locking |
9beeb9f3 RD |
38 | interface between GFS2 and the DLM, which is required to use GFS2 |
39 | in a cluster environment. |