xref: /openbmc/linux/fs/Kconfig (revision a2cce7a9) 
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
13source "fs/ext2/Kconfig"
14source "fs/ext4/Kconfig"
15source "fs/jbd2/Kconfig"
16
17config FS_MBCACHE
18# Meta block cache for Extended Attributes (ext2/ext3/ext4)
19	tristate
20	default y if EXT2_FS=y && EXT2_FS_XATTR
21	default y if EXT4_FS=y
22	default m if EXT2_FS_XATTR || EXT4_FS
23
24source "fs/reiserfs/Kconfig"
25source "fs/jfs/Kconfig"
26
27source "fs/xfs/Kconfig"
28source "fs/gfs2/Kconfig"
29source "fs/ocfs2/Kconfig"
30source "fs/btrfs/Kconfig"
31source "fs/nilfs2/Kconfig"
32source "fs/f2fs/Kconfig"
33
34config FS_DAX
35	bool "Direct Access (DAX) support"
36	depends on MMU
37	depends on !(ARM || MIPS || SPARC)
38	help
39	  Direct Access (DAX) can be used on memory-backed block devices.
40	  If the block device supports DAX and the filesystem supports DAX,
41	  then you can avoid using the pagecache to buffer I/Os.  Turning
42	  on this option will compile in support for DAX; you will need to
43	  mount the filesystem using the -o dax option.
44
45	  If you do not have a block device that is capable of using this,
46	  or if unsure, say N.  Saying Y will increase the size of the kernel
47	  by about 5kB.
48
49endif # BLOCK
50
51# Posix ACL utility routines
52#
53# Note: Posix ACLs can be implemented without these helpers.  Never use
54# this symbol for ifdefs in core code.
55#
56config FS_POSIX_ACL
57	def_bool n
58
59config EXPORTFS
60	tristate
61
62config FILE_LOCKING
63	bool "Enable POSIX file locking API" if EXPERT
64	default y
65	help
66	  This option enables standard file locking support, required
67          for filesystems like NFS and for the flock() system
68          call. Disabling this option saves about 11k.
69
70source "fs/notify/Kconfig"
71
72source "fs/quota/Kconfig"
73
74source "fs/autofs4/Kconfig"
75source "fs/fuse/Kconfig"
76source "fs/overlayfs/Kconfig"
77
78menu "Caches"
79
80source "fs/fscache/Kconfig"
81source "fs/cachefiles/Kconfig"
82
83endmenu
84
85if BLOCK
86menu "CD-ROM/DVD Filesystems"
87
88source "fs/isofs/Kconfig"
89source "fs/udf/Kconfig"
90
91endmenu
92endif # BLOCK
93
94if BLOCK
95menu "DOS/FAT/NT Filesystems"
96
97source "fs/fat/Kconfig"
98source "fs/ntfs/Kconfig"
99
100endmenu
101endif # BLOCK
102
103menu "Pseudo filesystems"
104
105source "fs/proc/Kconfig"
106source "fs/kernfs/Kconfig"
107source "fs/sysfs/Kconfig"
108
109config TMPFS
110	bool "Tmpfs virtual memory file system support (former shm fs)"
111	depends on SHMEM
112	help
113	  Tmpfs is a file system which keeps all files in virtual memory.
114
115	  Everything in tmpfs is temporary in the sense that no files will be
116	  created on your hard drive. The files live in memory and swap
117	  space. If you unmount a tmpfs instance, everything stored therein is
118	  lost.
119
120	  See <file:Documentation/filesystems/tmpfs.txt> for details.
121
122config TMPFS_POSIX_ACL
123	bool "Tmpfs POSIX Access Control Lists"
124	depends on TMPFS
125	select TMPFS_XATTR
126	select FS_POSIX_ACL
127	help
128	  POSIX Access Control Lists (ACLs) support additional access rights
129	  for users and groups beyond the standard owner/group/world scheme,
130	  and this option selects support for ACLs specifically for tmpfs
131	  filesystems.
132
133	  If you've selected TMPFS, it's possible that you'll also need
134	  this option as there are a number of Linux distros that require
135	  POSIX ACL support under /dev for certain features to work properly.
136	  For example, some distros need this feature for ALSA-related /dev
137	  files for sound to work properly.  In short, if you're not sure,
138	  say Y.
139
140	  To learn more about Access Control Lists, visit the POSIX ACLs for
141	  Linux website <http://acl.bestbits.at/>.
142
143config TMPFS_XATTR
144	bool "Tmpfs extended attributes"
145	depends on TMPFS
146	default n
147	help
148	  Extended attributes are name:value pairs associated with inodes by
149	  the kernel or by users (see the attr(5) manual page, or visit
150	  <http://acl.bestbits.at/> for details).
151
152	  Currently this enables support for the trusted.* and
153	  security.* namespaces.
154
155	  You need this for POSIX ACL support on tmpfs.
156
157	  If unsure, say N.
158
159config HUGETLBFS
160	bool "HugeTLB file system support"
161	depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
162		   SYS_SUPPORTS_HUGETLBFS || BROKEN
163	help
164	  hugetlbfs is a filesystem backing for HugeTLB pages, based on
165	  ramfs. For architectures that support it, say Y here and read
166	  <file:Documentation/vm/hugetlbpage.txt> for details.
167
168	  If unsure, say N.
169
170config HUGETLB_PAGE
171	def_bool HUGETLBFS
172
173source "fs/configfs/Kconfig"
174source "fs/efivarfs/Kconfig"
175
176endmenu
177
178menuconfig MISC_FILESYSTEMS
179	bool "Miscellaneous filesystems"
180	default y
181	---help---
182	  Say Y here to get to see options for various miscellaneous
183	  filesystems, such as filesystems that came from other
184	  operating systems.
185
186	  This option alone does not add any kernel code.
187
188	  If you say N, all options in this submenu will be skipped and
189	  disabled; if unsure, say Y here.
190
191if MISC_FILESYSTEMS
192
193source "fs/adfs/Kconfig"
194source "fs/affs/Kconfig"
195source "fs/ecryptfs/Kconfig"
196source "fs/hfs/Kconfig"
197source "fs/hfsplus/Kconfig"
198source "fs/befs/Kconfig"
199source "fs/bfs/Kconfig"
200source "fs/efs/Kconfig"
201source "fs/jffs2/Kconfig"
202# UBIFS File system configuration
203source "fs/ubifs/Kconfig"
204source "fs/logfs/Kconfig"
205source "fs/cramfs/Kconfig"
206source "fs/squashfs/Kconfig"
207source "fs/freevxfs/Kconfig"
208source "fs/minix/Kconfig"
209source "fs/omfs/Kconfig"
210source "fs/hpfs/Kconfig"
211source "fs/qnx4/Kconfig"
212source "fs/qnx6/Kconfig"
213source "fs/romfs/Kconfig"
214source "fs/pstore/Kconfig"
215source "fs/sysv/Kconfig"
216source "fs/ufs/Kconfig"
217source "fs/exofs/Kconfig"
218
219endif # MISC_FILESYSTEMS
220
221source "fs/exofs/Kconfig.ore"
222
223menuconfig NETWORK_FILESYSTEMS
224	bool "Network File Systems"
225	default y
226	depends on NET
227	---help---
228	  Say Y here to get to see options for network filesystems and
229	  filesystem-related networking code, such as NFS daemon and
230	  RPCSEC security modules.
231
232	  This option alone does not add any kernel code.
233
234	  If you say N, all options in this submenu will be skipped and
235	  disabled; if unsure, say Y here.
236
237if NETWORK_FILESYSTEMS
238
239source "fs/nfs/Kconfig"
240source "fs/nfsd/Kconfig"
241
242config GRACE_PERIOD
243	tristate
244
245config LOCKD
246	tristate
247	depends on FILE_LOCKING
248	select GRACE_PERIOD
249
250config LOCKD_V4
251	bool
252	depends on NFSD_V3 || NFS_V3
253	depends on FILE_LOCKING
254	default y
255
256config NFS_ACL_SUPPORT
257	tristate
258	select FS_POSIX_ACL
259
260config NFS_COMMON
261	bool
262	depends on NFSD || NFS_FS || LOCKD
263	default y
264
265source "net/sunrpc/Kconfig"
266source "fs/ceph/Kconfig"
267source "fs/cifs/Kconfig"
268source "fs/ncpfs/Kconfig"
269source "fs/coda/Kconfig"
270source "fs/afs/Kconfig"
271source "fs/9p/Kconfig"
272
273endif # NETWORK_FILESYSTEMS
274
275source "fs/nls/Kconfig"
276source "fs/dlm/Kconfig"
277
278endmenu
279