xref: /openbmc/linux/fs/Kconfig (revision ae3473231e77a3f1909d48cd144cebe5e1d049b3)
1#
2# File system configuration
3#
4
5menu "File systems"
6
7# Use unaligned word dcache accesses
8config DCACHE_WORD_ACCESS
9       bool
10
11if BLOCK
12
13config FS_IOMAP
14	bool
15
16source "fs/ext2/Kconfig"
17source "fs/ext4/Kconfig"
18source "fs/jbd2/Kconfig"
19
20config 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
27source "fs/reiserfs/Kconfig"
28source "fs/jfs/Kconfig"
29
30source "fs/xfs/Kconfig"
31source "fs/gfs2/Kconfig"
32source "fs/ocfs2/Kconfig"
33source "fs/btrfs/Kconfig"
34source "fs/nilfs2/Kconfig"
35source "fs/f2fs/Kconfig"
36
37config 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
52config 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
59endif # BLOCK
60
61# Posix ACL utility routines
62#
63# Note: Posix ACLs can be implemented without these helpers.  Never use
64# this symbol for ifdefs in core code.
65#
66config FS_POSIX_ACL
67	def_bool n
68
69config EXPORTFS
70	tristate
71
72config EXPORTFS_BLOCK_OPS
73	bool "Enable filesystem export operations for block IO"
74	help
75	  This option enables the export operations for a filesystem to support
76	  external block IO.
77
78config FILE_LOCKING
79	bool "Enable POSIX file locking API" if EXPERT
80	default y
81	select PERCPU_RWSEM
82	help
83	  This option enables standard file locking support, required
84          for filesystems like NFS and for the flock() system
85          call. Disabling this option saves about 11k.
86
87config MANDATORY_FILE_LOCKING
88	bool "Enable Mandatory file locking"
89	depends on FILE_LOCKING
90	default y
91	help
92	  This option enables files appropriately marked files on appropriely
93	  mounted filesystems to support mandatory locking.
94
95	  To the best of my knowledge this is dead code that no one cares about.
96
97source "fs/crypto/Kconfig"
98
99source "fs/notify/Kconfig"
100
101source "fs/quota/Kconfig"
102
103source "fs/autofs4/Kconfig"
104source "fs/fuse/Kconfig"
105source "fs/overlayfs/Kconfig"
106
107menu "Caches"
108
109source "fs/fscache/Kconfig"
110source "fs/cachefiles/Kconfig"
111
112endmenu
113
114if BLOCK
115menu "CD-ROM/DVD Filesystems"
116
117source "fs/isofs/Kconfig"
118source "fs/udf/Kconfig"
119
120endmenu
121endif # BLOCK
122
123if BLOCK
124menu "DOS/FAT/NT Filesystems"
125
126source "fs/fat/Kconfig"
127source "fs/ntfs/Kconfig"
128
129endmenu
130endif # BLOCK
131
132menu "Pseudo filesystems"
133
134source "fs/proc/Kconfig"
135source "fs/kernfs/Kconfig"
136source "fs/sysfs/Kconfig"
137
138config TMPFS
139	bool "Tmpfs virtual memory file system support (former shm fs)"
140	depends on SHMEM
141	help
142	  Tmpfs is a file system which keeps all files in virtual memory.
143
144	  Everything in tmpfs is temporary in the sense that no files will be
145	  created on your hard drive. The files live in memory and swap
146	  space. If you unmount a tmpfs instance, everything stored therein is
147	  lost.
148
149	  See <file:Documentation/filesystems/tmpfs.txt> for details.
150
151config TMPFS_POSIX_ACL
152	bool "Tmpfs POSIX Access Control Lists"
153	depends on TMPFS
154	select TMPFS_XATTR
155	select FS_POSIX_ACL
156	help
157	  POSIX Access Control Lists (ACLs) support additional access rights
158	  for users and groups beyond the standard owner/group/world scheme,
159	  and this option selects support for ACLs specifically for tmpfs
160	  filesystems.
161
162	  If you've selected TMPFS, it's possible that you'll also need
163	  this option as there are a number of Linux distros that require
164	  POSIX ACL support under /dev for certain features to work properly.
165	  For example, some distros need this feature for ALSA-related /dev
166	  files for sound to work properly.  In short, if you're not sure,
167	  say Y.
168
169	  To learn more about Access Control Lists, visit the POSIX ACLs for
170	  Linux website <http://acl.bestbits.at/>.
171
172config TMPFS_XATTR
173	bool "Tmpfs extended attributes"
174	depends on TMPFS
175	default n
176	help
177	  Extended attributes are name:value pairs associated with inodes by
178	  the kernel or by users (see the attr(5) manual page, or visit
179	  <http://acl.bestbits.at/> for details).
180
181	  Currently this enables support for the trusted.* and
182	  security.* namespaces.
183
184	  You need this for POSIX ACL support on tmpfs.
185
186	  If unsure, say N.
187
188config HUGETLBFS
189	bool "HugeTLB file system support"
190	depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
191		   SYS_SUPPORTS_HUGETLBFS || BROKEN
192	help
193	  hugetlbfs is a filesystem backing for HugeTLB pages, based on
194	  ramfs. For architectures that support it, say Y here and read
195	  <file:Documentation/vm/hugetlbpage.txt> for details.
196
197	  If unsure, say N.
198
199config HUGETLB_PAGE
200	def_bool HUGETLBFS
201
202config ARCH_HAS_GIGANTIC_PAGE
203	bool
204
205source "fs/configfs/Kconfig"
206source "fs/efivarfs/Kconfig"
207
208endmenu
209
210menuconfig MISC_FILESYSTEMS
211	bool "Miscellaneous filesystems"
212	default y
213	---help---
214	  Say Y here to get to see options for various miscellaneous
215	  filesystems, such as filesystems that came from other
216	  operating systems.
217
218	  This option alone does not add any kernel code.
219
220	  If you say N, all options in this submenu will be skipped and
221	  disabled; if unsure, say Y here.
222
223if MISC_FILESYSTEMS
224
225source "fs/orangefs/Kconfig"
226source "fs/adfs/Kconfig"
227source "fs/affs/Kconfig"
228source "fs/ecryptfs/Kconfig"
229source "fs/hfs/Kconfig"
230source "fs/hfsplus/Kconfig"
231source "fs/befs/Kconfig"
232source "fs/bfs/Kconfig"
233source "fs/efs/Kconfig"
234source "fs/jffs2/Kconfig"
235# UBIFS File system configuration
236source "fs/ubifs/Kconfig"
237source "fs/cramfs/Kconfig"
238source "fs/squashfs/Kconfig"
239source "fs/freevxfs/Kconfig"
240source "fs/minix/Kconfig"
241source "fs/omfs/Kconfig"
242source "fs/hpfs/Kconfig"
243source "fs/qnx4/Kconfig"
244source "fs/qnx6/Kconfig"
245source "fs/romfs/Kconfig"
246source "fs/pstore/Kconfig"
247source "fs/sysv/Kconfig"
248source "fs/ufs/Kconfig"
249source "fs/exofs/Kconfig"
250
251endif # MISC_FILESYSTEMS
252
253source "fs/exofs/Kconfig.ore"
254
255menuconfig NETWORK_FILESYSTEMS
256	bool "Network File Systems"
257	default y
258	depends on NET
259	---help---
260	  Say Y here to get to see options for network filesystems and
261	  filesystem-related networking code, such as NFS daemon and
262	  RPCSEC security modules.
263
264	  This option alone does not add any kernel code.
265
266	  If you say N, all options in this submenu will be skipped and
267	  disabled; if unsure, say Y here.
268
269if NETWORK_FILESYSTEMS
270
271source "fs/nfs/Kconfig"
272source "fs/nfsd/Kconfig"
273
274config GRACE_PERIOD
275	tristate
276
277config LOCKD
278	tristate
279	depends on FILE_LOCKING
280	select GRACE_PERIOD
281
282config LOCKD_V4
283	bool
284	depends on NFSD_V3 || NFS_V3
285	depends on FILE_LOCKING
286	default y
287
288config NFS_ACL_SUPPORT
289	tristate
290	select FS_POSIX_ACL
291
292config NFS_COMMON
293	bool
294	depends on NFSD || NFS_FS || LOCKD
295	default y
296
297source "net/sunrpc/Kconfig"
298source "fs/ceph/Kconfig"
299source "fs/cifs/Kconfig"
300source "fs/ncpfs/Kconfig"
301source "fs/coda/Kconfig"
302source "fs/afs/Kconfig"
303source "fs/9p/Kconfig"
304
305endif # NETWORK_FILESYSTEMS
306
307source "fs/nls/Kconfig"
308source "fs/dlm/Kconfig"
309
310endmenu
311