path: root/fs/Kconfig (plain)
blob: 5cc3f289719ec28d33210c395679500217b9004b

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	help
42	Direct Access (DAX) can be used on memory-backed block devices.
43	If the block device supports DAX and the filesystem supports DAX,
44	then you can avoid using the pagecache to buffer I/Os. Turning
45	on this option will compile in support for DAX; you will need to
46	mount the filesystem using the -o dax option.
47
48	If you do not have a block device that is capable of using this,
49	or if unsure, say N. Saying Y will increase the size of the kernel
50	by about 5kB.
51
52	config FS_DAX_PMD
53	bool
54	default FS_DAX
55	depends on FS_DAX
56	depends on ZONE_DEVICE
57	depends on TRANSPARENT_HUGEPAGE
58	depends on BROKEN
59
60	endif # BLOCK
61
62	# Posix ACL utility routines
63	#
64	# Note: Posix ACLs can be implemented without these helpers. Never use
65	# this symbol for ifdefs in core code.
66	#
67	config FS_POSIX_ACL
68	def_bool n
69
70	config EXPORTFS
71	tristate
72
73	config EXPORTFS_BLOCK_OPS
74	bool "Enable filesystem export operations for block IO"
75	help
76	This option enables the export operations for a filesystem to support
77	external block IO.
78
79	config FILE_LOCKING
80	bool "Enable POSIX file locking API" if EXPERT
81	default y
82	select PERCPU_RWSEM
83	help
84	This option enables standard file locking support, required
85	for filesystems like NFS and for the flock() system
86	call. Disabling this option saves about 11k.
87
88	config MANDATORY_FILE_LOCKING
89	bool "Enable Mandatory file locking"
90	depends on FILE_LOCKING
91	default y
92	help
93	This option enables files appropriately marked files on appropriely
94	mounted filesystems to support mandatory locking.
95
96	To the best of my knowledge this is dead code that no one cares about.
97
98	source "fs/crypto/Kconfig"
99
100	source "fs/notify/Kconfig"
101
102	source "fs/quota/Kconfig"
103
104	source "fs/autofs4/Kconfig"
105	source "fs/fuse/Kconfig"
106	source "fs/overlayfs/Kconfig"
107
108	menu "Caches"
109
110	source "fs/fscache/Kconfig"
111	source "fs/cachefiles/Kconfig"
112
113	endmenu
114
115	if BLOCK
116	menu "CD-ROM/DVD Filesystems"
117
118	source "fs/isofs/Kconfig"
119	source "fs/udf/Kconfig"
120
121	endmenu
122	endif # BLOCK
123
124	if BLOCK
125	menu "DOS/FAT/NT Filesystems"
126
127	source "fs/fat/Kconfig"
128	source "fs/exfat/Kconfig"
129	source "fs/ntfs/Kconfig"
130
131	endmenu
132	endif # BLOCK
133
134	menu "Pseudo filesystems"
135
136	source "fs/proc/Kconfig"
137	source "fs/kernfs/Kconfig"
138	source "fs/sysfs/Kconfig"
139
140	config TMPFS
141	bool "Tmpfs virtual memory file system support (former shm fs)"
142	depends on SHMEM
143	help
144	Tmpfs is a file system which keeps all files in virtual memory.
145
146	Everything in tmpfs is temporary in the sense that no files will be
147	created on your hard drive. The files live in memory and swap
148	space. If you unmount a tmpfs instance, everything stored therein is
149	lost.
150
151	See <file:Documentation/filesystems/tmpfs.txt> for details.
152
153	config TMPFS_POSIX_ACL
154	bool "Tmpfs POSIX Access Control Lists"
155	depends on TMPFS
156	select TMPFS_XATTR
157	select FS_POSIX_ACL
158	help
159	POSIX Access Control Lists (ACLs) support additional access rights
160	for users and groups beyond the standard owner/group/world scheme,
161	and this option selects support for ACLs specifically for tmpfs
162	filesystems.
163
164	If you've selected TMPFS, it's possible that you'll also need
165	this option as there are a number of Linux distros that require
166	POSIX ACL support under /dev for certain features to work properly.
167	For example, some distros need this feature for ALSA-related /dev
168	files for sound to work properly. In short, if you're not sure,
169	say Y.
170
171	To learn more about Access Control Lists, visit the POSIX ACLs for
172	Linux website <http://acl.bestbits.at/>.
173
174	config TMPFS_XATTR
175	bool "Tmpfs extended attributes"
176	depends on TMPFS
177	default n
178	help
179	Extended attributes are name:value pairs associated with inodes by
180	the kernel or by users (see the attr(5) manual page, or visit
181	<http://acl.bestbits.at/> for details).
182
183	Currently this enables support for the trusted.* and
184	security.* namespaces.
185
186	You need this for POSIX ACL support on tmpfs.
187
188	If unsure, say N.
189
190	config HUGETLBFS
191	bool "HugeTLB file system support"
192	depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
193	SYS_SUPPORTS_HUGETLBFS || BROKEN
194	help
195	hugetlbfs is a filesystem backing for HugeTLB pages, based on
196	ramfs. For architectures that support it, say Y here and read
197	<file:Documentation/vm/hugetlbpage.txt> for details.
198
199	If unsure, say N.
200
201	config HUGETLB_PAGE
202	def_bool HUGETLBFS
203
204	config ARCH_HAS_GIGANTIC_PAGE
205	bool
206
207	source "fs/configfs/Kconfig"
208	source "fs/efivarfs/Kconfig"
209
210	endmenu
211
212	menuconfig MISC_FILESYSTEMS
213	bool "Miscellaneous filesystems"
214	default y
215	---help---
216	Say Y here to get to see options for various miscellaneous
217	filesystems, such as filesystems that came from other
218	operating systems.
219
220	This option alone does not add any kernel code.
221
222	If you say N, all options in this submenu will be skipped and
223	disabled; if unsure, say Y here.
224
225	if MISC_FILESYSTEMS
226
227	source "fs/orangefs/Kconfig"
228	source "fs/adfs/Kconfig"
229	source "fs/affs/Kconfig"
230	source "fs/ecryptfs/Kconfig"
231	source "fs/sdcardfs/Kconfig"
232	source "fs/hfs/Kconfig"
233	source "fs/hfsplus/Kconfig"
234	source "fs/befs/Kconfig"
235	source "fs/bfs/Kconfig"
236	source "fs/efs/Kconfig"
237	source "fs/jffs2/Kconfig"
238	# UBIFS File system configuration
239	source "fs/ubifs/Kconfig"
240	source "fs/logfs/Kconfig"
241	source "fs/cramfs/Kconfig"
242	source "fs/squashfs/Kconfig"
243	source "fs/freevxfs/Kconfig"
244	source "fs/minix/Kconfig"
245	source "fs/omfs/Kconfig"
246	source "fs/hpfs/Kconfig"
247	source "fs/qnx4/Kconfig"
248	source "fs/qnx6/Kconfig"
249	source "fs/romfs/Kconfig"
250	source "fs/pstore/Kconfig"
251	source "fs/sysv/Kconfig"
252	source "fs/ufs/Kconfig"
253	source "fs/exofs/Kconfig"
254
255	endif # MISC_FILESYSTEMS
256
257	source "fs/exofs/Kconfig.ore"
258
259	menuconfig NETWORK_FILESYSTEMS
260	bool "Network File Systems"
261	default y
262	depends on NET
263	---help---
264	Say Y here to get to see options for network filesystems and
265	filesystem-related networking code, such as NFS daemon and
266	RPCSEC security modules.
267
268	This option alone does not add any kernel code.
269
270	If you say N, all options in this submenu will be skipped and
271	disabled; if unsure, say Y here.
272
273	if NETWORK_FILESYSTEMS
274
275	source "fs/nfs/Kconfig"
276	source "fs/nfsd/Kconfig"
277
278	config GRACE_PERIOD
279	tristate
280
281	config LOCKD
282	tristate
283	depends on FILE_LOCKING
284	select GRACE_PERIOD
285
286	config LOCKD_V4
287	bool
288	depends on NFSD_V3 || NFS_V3
289	depends on FILE_LOCKING
290	default y
291
292	config NFS_ACL_SUPPORT
293	tristate
294	select FS_POSIX_ACL
295
296	config NFS_COMMON
297	bool
298	depends on NFSD || NFS_FS || LOCKD
299	default y
300
301	source "net/sunrpc/Kconfig"
302	source "fs/ceph/Kconfig"
303	source "fs/cifs/Kconfig"
304	source "fs/ncpfs/Kconfig"
305	source "fs/coda/Kconfig"
306	source "fs/afs/Kconfig"
307	source "fs/9p/Kconfig"
308
309	endif # NETWORK_FILESYSTEMS
310
311	source "fs/nls/Kconfig"
312	source "fs/dlm/Kconfig"
313
314	endmenu
315