[linux-2.6-block.git] / fs / gfs2 / Kconfig

config GFS2_FS
	tristate "GFS2 file system support"
	depends on EXPERIMENTAL && (64BIT || LBDAF)
	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
	select SLOW_WORK
	select QUOTACTL
	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.
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
048bca22 SW	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
b3b94faa DT	31	config GFS2_FS_LOCKING_DLM
f057f6cd SW	32	bool "GFS2 DLM locking"
f057f6cd SW	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
9beeb9f3 RD	39	in a cluster environment.