[mirror_ubuntu-artful-kernel.git] / fs / gfs2 / Kconfig

config GFS2_FS
	tristate "GFS2 file system support"
	depends on (64BIT || LBDAF)
	select FS_POSIX_ACL
	select CRC32
	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 IPv4/6 networking.

config GFS2_FS_LOCKING_DLM
	bool "GFS2 DLM locking"
	depends on (GFS2_FS!=n) && NET && INET && (IPV6 || IPV6=n) && \
		CONFIGFS_FS && SYSFS && (DLM=y || DLM=GFS2_FS)
	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"
820969f3	3	depends on (64BIT \|\| LBDAF)
b5ea3e1e	4	select FS_POSIX_ACL
fa2ecfc5	5	select CRC32
cc632e7f	6	select QUOTACTL
b5ea3e1e	7	help
9beeb9f3	8	A cluster filesystem.
b5ea3e1e	9
9beeb9f3 RD	10	Allows a cluster of computers to simultaneously use a block device
	11	that is shared between them (with FC, iSCSI, NBD, etc...). GFS reads
	12	and writes to the block device like a local filesystem, but also uses
	13	a lock module to allow the computers coordinate their I/O so
	14	filesystem consistency is maintained. One of the nifty features of
	15	GFS is perfect consistency -- changes made to the filesystem on one
	16	machine show up immediately on all other machines in the cluster.
b3b94faa	17
048bca22 SW	18	To use the GFS2 filesystem in a cluster, you will need to enable
048bca22 SW	19	the locking module below. Documentation and utilities for GFS2 can
9beeb9f3	20	be found here: http://sources.redhat.com/cluster
b3b94faa	21
f057f6cd	22	The "nolock" lock module is now built in to GFS2 by default. If
40b31360	23	you want to use the DLM, be sure to enable IPv4/6 networking.
b3b94faa DT	24
b3b94faa DT	25	config GFS2_FS_LOCKING_DLM
f057f6cd	26	bool "GFS2 DLM locking"
97cc008a	27	depends on (GFS2_FS!=n) && NET && INET && (IPV6 \|\| IPV6=n) && \
40b31360	28	CONFIGFS_FS && SYSFS && (DLM=y \|\| DLM=GFS2_FS)
b3b94faa	29	help
9beeb9f3	30	Multiple node locking module for GFS2
b3b94faa	31
f057f6cd	32	Most users of GFS2 will require this. It provides the locking
9beeb9f3 RD	33	interface between GFS2 and the DLM, which is required to use GFS2
9beeb9f3 RD	34	in a cluster environment.