[deliverable/linux.git] / fs / xfs / Kconfig

config XFS_FS
	tristate "XFS filesystem support"
	depends on BLOCK
	select EXPORTFS
	help
	  XFS is a high performance journaling filesystem which originated
	  on the SGI IRIX platform.  It is completely multi-threaded, can
	  support large files and large filesystems, extended attributes,
	  variable block sizes, is extent based, and makes extensive use of
	  Btrees (directories, extents, free space) to aid both performance
	  and scalability.

	  Refer to the documentation at <http://oss.sgi.com/projects/xfs/>
	  for complete details.  This implementation is on-disk compatible
	  with the IRIX version of XFS.

	  To compile this file system support as a module, choose M here: the
	  module will be called xfs.  Be aware, however, that if the file
	  system of your root partition is compiled as a module, you'll need
	  to use an initial ramdisk (initrd) to boot.

config XFS_QUOTA
	bool "XFS Quota support"
	depends on XFS_FS
	help
	  If you say Y here, you will be able to set limits for disk usage on
	  a per user and/or a per group basis under XFS.  XFS considers quota
	  information as filesystem metadata and uses journaling to provide a
	  higher level guarantee of consistency.  The on-disk data format for
	  quota is also compatible with the IRIX version of XFS, allowing a
	  filesystem to be migrated between Linux and IRIX without any need
	  for conversion.

	  If unsure, say N.  More comprehensive documentation can be found in
	  README.quota in the xfsprogs package.  XFS quota can be used either
	  with or without the generic quota support enabled (CONFIG_QUOTA) -
	  they are completely independent subsystems.

config XFS_POSIX_ACL
	bool "XFS POSIX ACL support"
	depends on XFS_FS
	help
	  POSIX Access Control Lists (ACLs) support permissions for users and
	  groups beyond the owner/group/world scheme.

	  To learn more about Access Control Lists, visit the POSIX ACLs for
	  Linux website <http://acl.bestbits.at/>.

	  If you don't know what Access Control Lists are, say N.

config XFS_RT
	bool "XFS Realtime subvolume support"
	depends on XFS_FS
	help
	  If you say Y here you will be able to mount and use XFS filesystems
	  which contain a realtime subvolume.  The realtime subvolume is a
	  separate area of disk space where only file data is stored.  It was
	  originally designed to provide deterministic data rates suitable
	  for media streaming applications, but is also useful as a generic
	  mechanism for ensuring data and metadata/log I/Os are completely
	  separated.  Regular file I/Os are isolated to a separate device
	  from all other requests, and this can be done quite transparently
	  to applications via the inherit-realtime directory inode flag.

	  See the xfs man page in section 5 for additional information.

	  If unsure, say N.

config XFS_DEBUG
	bool "XFS Debugging support (EXPERIMENTAL)"
	depends on XFS_FS && EXPERIMENTAL
	help
	  Say Y here to get an XFS build with many debugging features,
	  including ASSERT checks, function wrappers around macros,
	  and extra sanity-checking functions in various code paths.

	  Note that the resulting code will be HUGE and SLOW, and probably
	  not useful unless you are debugging a particular problem.

	  Say N unless you are an XFS developer, or you play one on TV.
Commit	Line	Data
1da177e4 LT	1	config XFS_FS
1da177e4 LT	2	tristate "XFS filesystem support"
9361401e	3	depends on BLOCK
ab596ad8	4	select EXPORTFS
1da177e4 LT	5	help
	6	XFS is a high performance journaling filesystem which originated
	7	on the SGI IRIX platform. It is completely multi-threaded, can
	8	support large files and large filesystems, extended attributes,
	9	variable block sizes, is extent based, and makes extensive use of
	10	Btrees (directories, extents, free space) to aid both performance
	11	and scalability.
	12
	13	Refer to the documentation at <http://oss.sgi.com/projects/xfs/>
	14	for complete details. This implementation is on-disk compatible
	15	with the IRIX version of XFS.
	16
	17	To compile this file system support as a module, choose M here: the
	18	module will be called xfs. Be aware, however, that if the file
	19	system of your root partition is compiled as a module, you'll need
	20	to use an initial ramdisk (initrd) to boot.
	21
1da177e4	22	config XFS_QUOTA
538524ae	23	bool "XFS Quota support"
1da177e4 LT	24	depends on XFS_FS
	25	help
	26	If you say Y here, you will be able to set limits for disk usage on
	27	a per user and/or a per group basis under XFS. XFS considers quota
	28	information as filesystem metadata and uses journaling to provide a
	29	higher level guarantee of consistency. The on-disk data format for
	30	quota is also compatible with the IRIX version of XFS, allowing a
	31	filesystem to be migrated between Linux and IRIX without any need
	32	for conversion.
	33
	34	If unsure, say N. More comprehensive documentation can be found in
	35	README.quota in the xfsprogs package. XFS quota can be used either
	36	with or without the generic quota support enabled (CONFIG_QUOTA) -
	37	they are completely independent subsystems.
	38
1da177e4	39	config XFS_POSIX_ACL
20ba0287	40	bool "XFS POSIX ACL support"
1da177e4 LT	41	depends on XFS_FS
	42	help
	43	POSIX Access Control Lists (ACLs) support permissions for users and
	44	groups beyond the owner/group/world scheme.
	45
	46	To learn more about Access Control Lists, visit the POSIX ACLs for
	47	Linux website <http://acl.bestbits.at/>.
	48
	49	If you don't know what Access Control Lists are, say N.
	50
20ba0287	51	config XFS_RT
d7ede1aa NS	52	bool "XFS Realtime subvolume support"
d7ede1aa NS	53	depends on XFS_FS
20ba0287 NS	54	help
20ba0287 NS	55	If you say Y here you will be able to mount and use XFS filesystems
d7ede1aa NS	56	which contain a realtime subvolume. The realtime subvolume is a
	57	separate area of disk space where only file data is stored. It was
	58	originally designed to provide deterministic data rates suitable
	59	for media streaming applications, but is also useful as a generic
	60	mechanism for ensuring data and metadata/log I/Os are completely
	61	separated. Regular file I/Os are isolated to a separate device
	62	from all other requests, and this can be done quite transparently
	63	to applications via the inherit-realtime directory inode flag.
20ba0287	64
d7ede1aa	65	See the xfs man page in section 5 for additional information.
20ba0287 NS	66
20ba0287 NS	67	If unsure, say N.
7788fae6 CH	68
	69	config XFS_DEBUG
	70	bool "XFS Debugging support (EXPERIMENTAL)"
	71	depends on XFS_FS && EXPERIMENTAL
	72	help
	73	Say Y here to get an XFS build with many debugging features,
	74	including ASSERT checks, function wrappers around macros,
	75	and extra sanity-checking functions in various code paths.
	76
	77	Note that the resulting code will be HUGE and SLOW, and probably
	78	not useful unless you are debugging a particular problem.
	79
	80	Say N unless you are an XFS developer, or you play one on TV.