[linux-block.git] / fs / Kconfig

#
# File system configuration
#

menu "File systems"

# Use unaligned word dcache accesses
config DCACHE_WORD_ACCESS
       bool

if BLOCK

config FS_IOMAP
	bool

source "fs/ext2/Kconfig"
source "fs/ext4/Kconfig"
source "fs/jbd2/Kconfig"

config FS_MBCACHE
# Meta block cache for Extended Attributes (ext2/ext3/ext4)
	tristate
	default y if EXT2_FS=y && EXT2_FS_XATTR
	default y if EXT4_FS=y
	default m if EXT2_FS_XATTR || EXT4_FS

source "fs/reiserfs/Kconfig"
source "fs/jfs/Kconfig"

source "fs/xfs/Kconfig"
source "fs/gfs2/Kconfig"
source "fs/ocfs2/Kconfig"
source "fs/btrfs/Kconfig"
source "fs/nilfs2/Kconfig"
source "fs/f2fs/Kconfig"

config FS_DAX
	bool "Direct Access (DAX) support"
	depends on MMU
	depends on !(ARM || MIPS || SPARC)
	select DEV_PAGEMAP_OPS if (ZONE_DEVICE && !FS_DAX_LIMITED)
	select FS_IOMAP
	select DAX
	help
	  Direct Access (DAX) can be used on memory-backed block devices.
	  If the block device supports DAX and the filesystem supports DAX,
	  then you can avoid using the pagecache to buffer I/Os.  Turning
	  on this option will compile in support for DAX; you will need to
	  mount the filesystem using the -o dax option.

	  If you do not have a block device that is capable of using this,
	  or if unsure, say N.  Saying Y will increase the size of the kernel
	  by about 5kB.

config FS_DAX_PMD
	bool
	default FS_DAX
	depends on FS_DAX
	depends on ZONE_DEVICE
	depends on TRANSPARENT_HUGEPAGE

# Selected by DAX drivers that do not expect filesystem DAX to support
# get_user_pages() of DAX mappings. I.e. "limited" indicates no support
# for fork() of processes with MAP_SHARED mappings or support for
# direct-I/O to a DAX mapping.
config FS_DAX_LIMITED
	bool

endif # BLOCK

# Posix ACL utility routines
#
# Note: Posix ACLs can be implemented without these helpers.  Never use
# this symbol for ifdefs in core code.
#
config FS_POSIX_ACL
	def_bool n

config EXPORTFS
	tristate

config EXPORTFS_BLOCK_OPS
	bool "Enable filesystem export operations for block IO"
	help
	  This option enables the export operations for a filesystem to support
	  external block IO.

config FILE_LOCKING
	bool "Enable POSIX file locking API" if EXPERT
	default y
	help
	  This option enables standard file locking support, required
          for filesystems like NFS and for the flock() system
          call. Disabling this option saves about 11k.

config MANDATORY_FILE_LOCKING
	bool "Enable Mandatory file locking"
	depends on FILE_LOCKING
	default y
	help
	  This option enables files appropriately marked files on appropriely
	  mounted filesystems to support mandatory locking.

	  To the best of my knowledge this is dead code that no one cares about.

source "fs/crypto/Kconfig"

source "fs/notify/Kconfig"

source "fs/quota/Kconfig"

source "fs/autofs/Kconfig"
source "fs/fuse/Kconfig"
source "fs/overlayfs/Kconfig"

menu "Caches"

source "fs/fscache/Kconfig"
source "fs/cachefiles/Kconfig"

endmenu

if BLOCK
menu "CD-ROM/DVD Filesystems"

source "fs/isofs/Kconfig"
source "fs/udf/Kconfig"

endmenu
endif # BLOCK

if BLOCK
menu "DOS/FAT/NT Filesystems"

source "fs/fat/Kconfig"
source "fs/ntfs/Kconfig"

endmenu
endif # BLOCK

menu "Pseudo filesystems"

source "fs/proc/Kconfig"
source "fs/kernfs/Kconfig"
source "fs/sysfs/Kconfig"

config TMPFS
	bool "Tmpfs virtual memory file system support (former shm fs)"
	depends on SHMEM
	help
	  Tmpfs is a file system which keeps all files in virtual memory.

	  Everything in tmpfs is temporary in the sense that no files will be
	  created on your hard drive. The files live in memory and swap
	  space. If you unmount a tmpfs instance, everything stored therein is
	  lost.

	  See <file:Documentation/filesystems/tmpfs.txt> for details.

config TMPFS_POSIX_ACL
	bool "Tmpfs POSIX Access Control Lists"
	depends on TMPFS
	select TMPFS_XATTR
	select FS_POSIX_ACL
	help
	  POSIX Access Control Lists (ACLs) support additional access rights
	  for users and groups beyond the standard owner/group/world scheme,
	  and this option selects support for ACLs specifically for tmpfs
	  filesystems.

	  If you've selected TMPFS, it's possible that you'll also need
	  this option as there are a number of Linux distros that require
	  POSIX ACL support under /dev for certain features to work properly.
	  For example, some distros need this feature for ALSA-related /dev
	  files for sound to work properly.  In short, if you're not sure,
	  say Y.

config TMPFS_XATTR
	bool "Tmpfs extended attributes"
	depends on TMPFS
	default n
	help
	  Extended attributes are name:value pairs associated with inodes by
	  the kernel or by users (see the attr(5) manual page for details).

	  Currently this enables support for the trusted.* and
	  security.* namespaces.

	  You need this for POSIX ACL support on tmpfs.

	  If unsure, say N.

config HUGETLBFS
	bool "HugeTLB file system support"
	depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
		   SYS_SUPPORTS_HUGETLBFS || BROKEN
	help
	  hugetlbfs is a filesystem backing for HugeTLB pages, based on
	  ramfs. For architectures that support it, say Y here and read
	  <file:Documentation/admin-guide/mm/hugetlbpage.rst> for details.

	  If unsure, say N.

config HUGETLB_PAGE
	def_bool HUGETLBFS

config MEMFD_CREATE
	def_bool TMPFS || HUGETLBFS

config ARCH_HAS_GIGANTIC_PAGE
	bool

source "fs/configfs/Kconfig"
source "fs/efivarfs/Kconfig"

endmenu

menuconfig MISC_FILESYSTEMS
	bool "Miscellaneous filesystems"
	default y
	---help---
	  Say Y here to get to see options for various miscellaneous
	  filesystems, such as filesystems that came from other
	  operating systems.

	  This option alone does not add any kernel code.

	  If you say N, all options in this submenu will be skipped and
	  disabled; if unsure, say Y here.

if MISC_FILESYSTEMS

source "fs/orangefs/Kconfig"
source "fs/adfs/Kconfig"
source "fs/affs/Kconfig"
source "fs/ecryptfs/Kconfig"
source "fs/hfs/Kconfig"
source "fs/hfsplus/Kconfig"
source "fs/befs/Kconfig"
source "fs/bfs/Kconfig"
source "fs/efs/Kconfig"
source "fs/jffs2/Kconfig"
# UBIFS File system configuration
source "fs/ubifs/Kconfig"
source "fs/cramfs/Kconfig"
source "fs/squashfs/Kconfig"
source "fs/freevxfs/Kconfig"
source "fs/minix/Kconfig"
source "fs/omfs/Kconfig"
source "fs/hpfs/Kconfig"
source "fs/qnx4/Kconfig"
source "fs/qnx6/Kconfig"
source "fs/romfs/Kconfig"
source "fs/pstore/Kconfig"
source "fs/sysv/Kconfig"
source "fs/ufs/Kconfig"
source "fs/exofs/Kconfig"

endif # MISC_FILESYSTEMS

source "fs/exofs/Kconfig.ore"

menuconfig NETWORK_FILESYSTEMS
	bool "Network File Systems"
	default y
	depends on NET
	---help---
	  Say Y here to get to see options for network filesystems and
	  filesystem-related networking code, such as NFS daemon and
	  RPCSEC security modules.

	  This option alone does not add any kernel code.

	  If you say N, all options in this submenu will be skipped and
	  disabled; if unsure, say Y here.

if NETWORK_FILESYSTEMS

source "fs/nfs/Kconfig"
source "fs/nfsd/Kconfig"

config GRACE_PERIOD
	tristate

config LOCKD
	tristate
	depends on FILE_LOCKING
	select GRACE_PERIOD

config LOCKD_V4
	bool
	depends on NFSD_V3 || NFS_V3
	depends on FILE_LOCKING
	default y

config NFS_ACL_SUPPORT
	tristate
	select FS_POSIX_ACL

config NFS_COMMON
	bool
	depends on NFSD || NFS_FS || LOCKD
	default y

source "net/sunrpc/Kconfig"
source "fs/ceph/Kconfig"
source "fs/cifs/Kconfig"
source "fs/coda/Kconfig"
source "fs/afs/Kconfig"
source "fs/9p/Kconfig"

endif # NETWORK_FILESYSTEMS

source "fs/nls/Kconfig"
source "fs/dlm/Kconfig"

endmenu
Commit	Line	Data
	1	#
	2	# File system configuration
	3	#
	4
	5	menu "File systems"
	6
	7	# Use unaligned word dcache accesses
	8	config DCACHE_WORD_ACCESS
	9	bool
	10
	11	if BLOCK
	12
	13	config FS_IOMAP
	14	bool
	15
	16	source "fs/ext2/Kconfig"
	17	source "fs/ext4/Kconfig"
	18	source "fs/jbd2/Kconfig"
	19
	20	config FS_MBCACHE
	21	# Meta block cache for Extended Attributes (ext2/ext3/ext4)
	22	tristate
	23	default y if EXT2_FS=y && EXT2_FS_XATTR
	24	default y if EXT4_FS=y
	25	default m if EXT2_FS_XATTR \|\| EXT4_FS
	26
	27	source "fs/reiserfs/Kconfig"
	28	source "fs/jfs/Kconfig"
	29
	30	source "fs/xfs/Kconfig"
	31	source "fs/gfs2/Kconfig"
	32	source "fs/ocfs2/Kconfig"
	33	source "fs/btrfs/Kconfig"
	34	source "fs/nilfs2/Kconfig"
	35	source "fs/f2fs/Kconfig"
	36
	37	config FS_DAX
	38	bool "Direct Access (DAX) support"
	39	depends on MMU
	40	depends on !(ARM \|\| MIPS \|\| SPARC)
	41	select DEV_PAGEMAP_OPS if (ZONE_DEVICE && !FS_DAX_LIMITED)
	42	select FS_IOMAP
	43	select DAX
	44	help
	45	Direct Access (DAX) can be used on memory-backed block devices.
	46	If the block device supports DAX and the filesystem supports DAX,
	47	then you can avoid using the pagecache to buffer I/Os. Turning
	48	on this option will compile in support for DAX; you will need to
	49	mount the filesystem using the -o dax option.
	50
	51	If you do not have a block device that is capable of using this,
	52	or if unsure, say N. Saying Y will increase the size of the kernel
	53	by about 5kB.
	54
	55	config FS_DAX_PMD
	56	bool
	57	default FS_DAX
	58	depends on FS_DAX
	59	depends on ZONE_DEVICE
	60	depends on TRANSPARENT_HUGEPAGE
	61
	62	# Selected by DAX drivers that do not expect filesystem DAX to support
	63	# get_user_pages() of DAX mappings. I.e. "limited" indicates no support
	64	# for fork() of processes with MAP_SHARED mappings or support for
	65	# direct-I/O to a DAX mapping.
	66	config FS_DAX_LIMITED
	67	bool
	68
	69	endif # BLOCK
	70
	71	# Posix ACL utility routines
	72	#
	73	# Note: Posix ACLs can be implemented without these helpers. Never use
	74	# this symbol for ifdefs in core code.
	75	#
	76	config FS_POSIX_ACL
	77	def_bool n
	78
	79	config EXPORTFS
	80	tristate
	81
	82	config EXPORTFS_BLOCK_OPS
	83	bool "Enable filesystem export operations for block IO"
	84	help
	85	This option enables the export operations for a filesystem to support
	86	external block IO.
	87
	88	config FILE_LOCKING
	89	bool "Enable POSIX file locking API" if EXPERT
	90	default y
	91	help
	92	This option enables standard file locking support, required
	93	for filesystems like NFS and for the flock() system
	94	call. Disabling this option saves about 11k.
	95
	96	config MANDATORY_FILE_LOCKING
	97	bool "Enable Mandatory file locking"
	98	depends on FILE_LOCKING
	99	default y
	100	help
	101	This option enables files appropriately marked files on appropriely
	102	mounted filesystems to support mandatory locking.
	103
	104	To the best of my knowledge this is dead code that no one cares about.
	105
	106	source "fs/crypto/Kconfig"
	107
	108	source "fs/notify/Kconfig"
	109
	110	source "fs/quota/Kconfig"
	111
	112	source "fs/autofs/Kconfig"
	113	source "fs/fuse/Kconfig"
	114	source "fs/overlayfs/Kconfig"
	115
	116	menu "Caches"
	117
	118	source "fs/fscache/Kconfig"
	119	source "fs/cachefiles/Kconfig"
	120
	121	endmenu
	122
	123	if BLOCK
	124	menu "CD-ROM/DVD Filesystems"
	125
	126	source "fs/isofs/Kconfig"
	127	source "fs/udf/Kconfig"
	128
	129	endmenu
	130	endif # BLOCK
	131
	132	if BLOCK
	133	menu "DOS/FAT/NT Filesystems"
	134
	135	source "fs/fat/Kconfig"
	136	source "fs/ntfs/Kconfig"
	137
	138	endmenu
	139	endif # BLOCK
	140
	141	menu "Pseudo filesystems"
	142
	143	source "fs/proc/Kconfig"
	144	source "fs/kernfs/Kconfig"
	145	source "fs/sysfs/Kconfig"
	146
	147	config TMPFS
	148	bool "Tmpfs virtual memory file system support (former shm fs)"
	149	depends on SHMEM
	150	help
	151	Tmpfs is a file system which keeps all files in virtual memory.
	152
	153	Everything in tmpfs is temporary in the sense that no files will be
	154	created on your hard drive. The files live in memory and swap
	155	space. If you unmount a tmpfs instance, everything stored therein is
	156	lost.
	157
	158	See <file:Documentation/filesystems/tmpfs.txt> for details.
	159
	160	config TMPFS_POSIX_ACL
	161	bool "Tmpfs POSIX Access Control Lists"
	162	depends on TMPFS
	163	select TMPFS_XATTR
	164	select FS_POSIX_ACL
	165	help
	166	POSIX Access Control Lists (ACLs) support additional access rights
	167	for users and groups beyond the standard owner/group/world scheme,
	168	and this option selects support for ACLs specifically for tmpfs
	169	filesystems.
	170
	171	If you've selected TMPFS, it's possible that you'll also need
	172	this option as there are a number of Linux distros that require
	173	POSIX ACL support under /dev for certain features to work properly.
	174	For example, some distros need this feature for ALSA-related /dev
	175	files for sound to work properly. In short, if you're not sure,
	176	say Y.
	177
	178	config TMPFS_XATTR
	179	bool "Tmpfs extended attributes"
	180	depends on TMPFS
	181	default n
	182	help
	183	Extended attributes are name:value pairs associated with inodes by
	184	the kernel or by users (see the attr(5) manual page for details).
	185
	186	Currently this enables support for the trusted.* and
	187	security.* namespaces.
	188
	189	You need this for POSIX ACL support on tmpfs.
	190
	191	If unsure, say N.
	192
	193	config HUGETLBFS
	194	bool "HugeTLB file system support"
	195	depends on X86 \|\| IA64 \|\| SPARC64 \|\| (S390 && 64BIT) \|\| \
	196	SYS_SUPPORTS_HUGETLBFS \|\| BROKEN
	197	help
	198	hugetlbfs is a filesystem backing for HugeTLB pages, based on
	199	ramfs. For architectures that support it, say Y here and read
	200	<file:Documentation/admin-guide/mm/hugetlbpage.rst> for details.
	201
	202	If unsure, say N.
	203
	204	config HUGETLB_PAGE
	205	def_bool HUGETLBFS
	206
	207	config MEMFD_CREATE
	208	def_bool TMPFS \|\| HUGETLBFS
	209
	210	config ARCH_HAS_GIGANTIC_PAGE
	211	bool
	212
	213	source "fs/configfs/Kconfig"
	214	source "fs/efivarfs/Kconfig"
	215
	216	endmenu
	217
	218	menuconfig MISC_FILESYSTEMS
	219	bool "Miscellaneous filesystems"
	220	default y
	221	---help---
	222	Say Y here to get to see options for various miscellaneous
	223	filesystems, such as filesystems that came from other
	224	operating systems.
	225
	226	This option alone does not add any kernel code.
	227
	228	If you say N, all options in this submenu will be skipped and
	229	disabled; if unsure, say Y here.
	230
	231	if MISC_FILESYSTEMS
	232
	233	source "fs/orangefs/Kconfig"
	234	source "fs/adfs/Kconfig"
	235	source "fs/affs/Kconfig"
	236	source "fs/ecryptfs/Kconfig"
	237	source "fs/hfs/Kconfig"
	238	source "fs/hfsplus/Kconfig"
	239	source "fs/befs/Kconfig"
	240	source "fs/bfs/Kconfig"
	241	source "fs/efs/Kconfig"
	242	source "fs/jffs2/Kconfig"
	243	# UBIFS File system configuration
	244	source "fs/ubifs/Kconfig"
	245	source "fs/cramfs/Kconfig"
	246	source "fs/squashfs/Kconfig"
	247	source "fs/freevxfs/Kconfig"
	248	source "fs/minix/Kconfig"
	249	source "fs/omfs/Kconfig"
	250	source "fs/hpfs/Kconfig"
	251	source "fs/qnx4/Kconfig"
	252	source "fs/qnx6/Kconfig"
	253	source "fs/romfs/Kconfig"
	254	source "fs/pstore/Kconfig"
	255	source "fs/sysv/Kconfig"
	256	source "fs/ufs/Kconfig"
	257	source "fs/exofs/Kconfig"
	258
	259	endif # MISC_FILESYSTEMS
	260
	261	source "fs/exofs/Kconfig.ore"
	262
	263	menuconfig NETWORK_FILESYSTEMS
	264	bool "Network File Systems"
	265	default y
	266	depends on NET
	267	---help---
	268	Say Y here to get to see options for network filesystems and
	269	filesystem-related networking code, such as NFS daemon and
	270	RPCSEC security modules.
	271
	272	This option alone does not add any kernel code.
	273
	274	If you say N, all options in this submenu will be skipped and
	275	disabled; if unsure, say Y here.
	276
	277	if NETWORK_FILESYSTEMS
	278
	279	source "fs/nfs/Kconfig"
	280	source "fs/nfsd/Kconfig"
	281
	282	config GRACE_PERIOD
	283	tristate
	284
	285	config LOCKD
	286	tristate
	287	depends on FILE_LOCKING
	288	select GRACE_PERIOD
	289
	290	config LOCKD_V4
	291	bool
	292	depends on NFSD_V3 \|\| NFS_V3
	293	depends on FILE_LOCKING
	294	default y
	295
	296	config NFS_ACL_SUPPORT
	297	tristate
	298	select FS_POSIX_ACL
	299
	300	config NFS_COMMON
	301	bool
	302	depends on NFSD \|\| NFS_FS \|\| LOCKD
	303	default y
	304
	305	source "net/sunrpc/Kconfig"
	306	source "fs/ceph/Kconfig"
	307	source "fs/cifs/Kconfig"
	308	source "fs/coda/Kconfig"
	309	source "fs/afs/Kconfig"
	310	source "fs/9p/Kconfig"
	311
	312	endif # NETWORK_FILESYSTEMS
	313
	314	source "fs/nls/Kconfig"
	315	source "fs/dlm/Kconfig"
	316
	317	endmenu