![Steven Whitehouse](/assets/img/avatar_default.png)
This patch merges the lock_nolock module into GFS2 itself. As well as removing some of the overhead of the module, it also means that its now impossible to build GFS2 without a lock module (which would be a pointless thing to do anyway). We also plan to merge lock_dlm into GFS2 in the future, but that is a more tricky task, and will therefore be a separate patch. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Cc: David Teigland <teigland@redhat.com>
35 lines
1.3 KiB
Text
35 lines
1.3 KiB
Text
config GFS2_FS
|
|
tristate "GFS2 file system support"
|
|
depends on EXPERIMENTAL && (64BIT || (LSF && LBD))
|
|
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.
|
|
|
|
config GFS2_FS_LOCKING_DLM
|
|
tristate "GFS2 DLM locking module"
|
|
depends on GFS2_FS && SYSFS && NET && INET && (IPV6 || IPV6=n)
|
|
select IP_SCTP if DLM_SCTP
|
|
select CONFIGFS_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.
|