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ec8f24b7 1# SPDX-License-Identifier: GPL-2.0-only
1da177e4
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2#
3# File system configuration
4#
5
6menu "File systems"
7
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8# Use unaligned word dcache accesses
9config DCACHE_WORD_ACCESS
10 bool
11
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12config VALIDATE_FS_PARSER
13 bool "Validate filesystem parameter description"
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14 help
15 Enable this to perform validation of the parameter description for a
16 filesystem when it is registered.
17
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18if BLOCK
19
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20config FS_IOMAP
21 bool
22
6da0b38f 23source "fs/ext2/Kconfig"
6da0b38f 24source "fs/ext4/Kconfig"
6da0b38f 25source "fs/jbd2/Kconfig"
dab291af 26
1da177e4 27config FS_MBCACHE
02ea2104 28# Meta block cache for Extended Attributes (ext2/ext3/ext4)
1da177e4 29 tristate
2c512397 30 default y if EXT2_FS=y && EXT2_FS_XATTR
939da108 31 default y if EXT4_FS=y
c290ea01 32 default m if EXT2_FS_XATTR || EXT4_FS
1da177e4 33
b16ecfe2 34source "fs/reiserfs/Kconfig"
f5c77969 35source "fs/jfs/Kconfig"
1da177e4 36
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37source "fs/xfs/Kconfig"
38source "fs/gfs2/Kconfig"
39source "fs/ocfs2/Kconfig"
40source "fs/btrfs/Kconfig"
41f4db0f 41source "fs/nilfs2/Kconfig"
d7196c5a 42source "fs/f2fs/Kconfig"
8dcc1a9d 43source "fs/zonefs/Kconfig"
69050eee 44
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45config FS_DAX
46 bool "Direct Access (DAX) support"
47 depends on MMU
d92576f1 48 depends on !(ARM || MIPS || SPARC)
e7638488 49 select DEV_PAGEMAP_OPS if (ZONE_DEVICE && !FS_DAX_LIMITED)
6affb9d7 50 select FS_IOMAP
ef510424 51 select DAX
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52 help
53 Direct Access (DAX) can be used on memory-backed block devices.
54 If the block device supports DAX and the filesystem supports DAX,
55 then you can avoid using the pagecache to buffer I/Os. Turning
56 on this option will compile in support for DAX; you will need to
57 mount the filesystem using the -o dax option.
58
59 If you do not have a block device that is capable of using this,
60 or if unsure, say N. Saying Y will increase the size of the kernel
61 by about 5kB.
62
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63config FS_DAX_PMD
64 bool
65 default FS_DAX
66 depends on FS_DAX
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67 depends on ZONE_DEVICE
68 depends on TRANSPARENT_HUGEPAGE
ee82c9ed 69
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70# Selected by DAX drivers that do not expect filesystem DAX to support
71# get_user_pages() of DAX mappings. I.e. "limited" indicates no support
72# for fork() of processes with MAP_SHARED mappings or support for
73# direct-I/O to a DAX mapping.
74config FS_DAX_LIMITED
75 bool
76
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77endif # BLOCK
78
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79# Posix ACL utility routines
80#
81# Note: Posix ACLs can be implemented without these helpers. Never use
82# this symbol for ifdefs in core code.
83#
84config FS_POSIX_ACL
85 def_bool n
86
4199ca77 87config EXPORTFS
79fead47 88 tristate
4199ca77 89
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90config EXPORTFS_BLOCK_OPS
91 bool "Enable filesystem export operations for block IO"
92 help
93 This option enables the export operations for a filesystem to support
94 external block IO.
95
bfcd17a6 96config FILE_LOCKING
6a108a14 97 bool "Enable POSIX file locking API" if EXPERT
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98 default y
99 help
100 This option enables standard file locking support, required
101 for filesystems like NFS and for the flock() system
102 call. Disabling this option saves about 11k.
103
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104config MANDATORY_FILE_LOCKING
105 bool "Enable Mandatory file locking"
106 depends on FILE_LOCKING
107 default y
108 help
109 This option enables files appropriately marked files on appropriely
110 mounted filesystems to support mandatory locking.
111
112 To the best of my knowledge this is dead code that no one cares about.
113
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114source "fs/crypto/Kconfig"
115
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116source "fs/verity/Kconfig"
117
272eb014 118source "fs/notify/Kconfig"
0eeca283 119
884d179d 120source "fs/quota/Kconfig"
1da177e4 121
2a3ae0a1 122source "fs/autofs/Kconfig"
3ef7784e 123source "fs/fuse/Kconfig"
e9be9d5e 124source "fs/overlayfs/Kconfig"
04578f17 125
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126menu "Caches"
127
128source "fs/fscache/Kconfig"
9ae326a6 129source "fs/cachefiles/Kconfig"
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130
131endmenu
132
9361401e 133if BLOCK
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134menu "CD-ROM/DVD Filesystems"
135
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136source "fs/isofs/Kconfig"
137source "fs/udf/Kconfig"
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138
139endmenu
25fad945 140endif # BLOCK
1da177e4 141
9361401e 142if BLOCK
b9d1e2e6 143menu "DOS/FAT/EXFAT/NT Filesystems"
1da177e4 144
1c6ace01 145source "fs/fat/Kconfig"
b9d1e2e6 146source "fs/exfat/Kconfig"
9d73ac9e 147source "fs/ntfs/Kconfig"
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148
149endmenu
25fad945 150endif # BLOCK
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151
152menu "Pseudo filesystems"
153
6eedf8d3 154source "fs/proc/Kconfig"
ba341d55 155source "fs/kernfs/Kconfig"
5f3a211a 156source "fs/sysfs/Kconfig"
1da177e4 157
1da177e4 158config TMPFS
f5fc870d 159 bool "Tmpfs virtual memory file system support (former shm fs)"
3f96b79a 160 depends on SHMEM
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161 help
162 Tmpfs is a file system which keeps all files in virtual memory.
163
164 Everything in tmpfs is temporary in the sense that no files will be
165 created on your hard drive. The files live in memory and swap
166 space. If you unmount a tmpfs instance, everything stored therein is
167 lost.
168
0c1bc6b8 169 See <file:Documentation/filesystems/tmpfs.rst> for details.
1da177e4 170
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171config TMPFS_POSIX_ACL
172 bool "Tmpfs POSIX Access Control Lists"
173 depends on TMPFS
174 select TMPFS_XATTR
feda821e 175 select FS_POSIX_ACL
4db70f73 176 help
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177 POSIX Access Control Lists (ACLs) support additional access rights
178 for users and groups beyond the standard owner/group/world scheme,
179 and this option selects support for ACLs specifically for tmpfs
180 filesystems.
181
182 If you've selected TMPFS, it's possible that you'll also need
183 this option as there are a number of Linux distros that require
184 POSIX ACL support under /dev for certain features to work properly.
185 For example, some distros need this feature for ALSA-related /dev
186 files for sound to work properly. In short, if you're not sure,
187 say Y.
4db70f73 188
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189config TMPFS_XATTR
190 bool "Tmpfs extended attributes"
191 depends on TMPFS
192 default n
193 help
194 Extended attributes are name:value pairs associated with inodes by
91581e4c 195 the kernel or by users (see the attr(5) manual page for details).
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196
197 Currently this enables support for the trusted.* and
198 security.* namespaces.
199
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200 You need this for POSIX ACL support on tmpfs.
201
4db70f73 202 If unsure, say N.
39f0247d 203
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204config HUGETLBFS
205 bool "HugeTLB file system support"
5a1eb5c4 206 depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
ffb4a73d 207 SYS_SUPPORTS_HUGETLBFS || BROKEN
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208 help
209 hugetlbfs is a filesystem backing for HugeTLB pages, based on
210 ramfs. For architectures that support it, say Y here and read
1ad1335d 211 <file:Documentation/admin-guide/mm/hugetlbpage.rst> for details.
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212
213 If unsure, say N.
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214
215config HUGETLB_PAGE
216 def_bool HUGETLBFS
217
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218config MEMFD_CREATE
219 def_bool TMPFS || HUGETLBFS
220
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221config ARCH_HAS_GIGANTIC_PAGE
222 bool
223
4591dabe 224source "fs/configfs/Kconfig"
62c204dd 225source "fs/efivarfs/Kconfig"
7063fbf2 226
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227endmenu
228
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229menuconfig MISC_FILESYSTEMS
230 bool "Miscellaneous filesystems"
231 default y
232 ---help---
233 Say Y here to get to see options for various miscellaneous
234 filesystems, such as filesystems that came from other
235 operating systems.
236
237 This option alone does not add any kernel code.
238
239 If you say N, all options in this submenu will be skipped and
240 disabled; if unsure, say Y here.
241
242if MISC_FILESYSTEMS
1da177e4 243
07f01962 244source "fs/orangefs/Kconfig"
bc2de2ae 245source "fs/adfs/Kconfig"
10951bf0 246source "fs/affs/Kconfig"
295c896c 247source "fs/ecryptfs/Kconfig"
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248source "fs/hfs/Kconfig"
249source "fs/hfsplus/Kconfig"
0b09eb32 250source "fs/befs/Kconfig"
0ff42384 251source "fs/bfs/Kconfig"
571f0a0b 252source "fs/efs/Kconfig"
31db6e9e 253source "fs/jffs2/Kconfig"
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254# UBIFS File system configuration
255source "fs/ubifs/Kconfig"
2a22783b 256source "fs/cramfs/Kconfig"
22635ec9 257source "fs/squashfs/Kconfig"
22135169 258source "fs/freevxfs/Kconfig"
8b1cd7d3 259source "fs/minix/Kconfig"
da55e6f9 260source "fs/omfs/Kconfig"
928ea192 261source "fs/hpfs/Kconfig"
4c741583 262source "fs/qnx4/Kconfig"
5d026c72 263source "fs/qnx6/Kconfig"
41810246 264source "fs/romfs/Kconfig"
ca01d6dd 265source "fs/pstore/Kconfig"
8af915ba 266source "fs/sysv/Kconfig"
a276a52f 267source "fs/ufs/Kconfig"
47e4937a 268source "fs/erofs/Kconfig"
0fd16957 269source "fs/vboxsf/Kconfig"
0c4fb877 270
67ec7d3a 271endif # MISC_FILESYSTEMS
1da177e4 272
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273menuconfig NETWORK_FILESYSTEMS
274 bool "Network File Systems"
275 default y
1da177e4 276 depends on NET
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277 ---help---
278 Say Y here to get to see options for network filesystems and
279 filesystem-related networking code, such as NFS daemon and
280 RPCSEC security modules.
6fb1bc10 281
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282 This option alone does not add any kernel code.
283
284 If you say N, all options in this submenu will be skipped and
285 disabled; if unsure, say Y here.
286
287if NETWORK_FILESYSTEMS
1da177e4 288
97afe47a 289source "fs/nfs/Kconfig"
e2b329e2 290source "fs/nfsd/Kconfig"
1da177e4 291
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292config GRACE_PERIOD
293 tristate
294
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295config LOCKD
296 tristate
dd4dc82d 297 depends on FILE_LOCKING
f7790029 298 select GRACE_PERIOD
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299
300config LOCKD_V4
301 bool
302 depends on NFSD_V3 || NFS_V3
dd4dc82d 303 depends on FILE_LOCKING
1da177e4
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304 default y
305
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306config NFS_ACL_SUPPORT
307 tristate
308 select FS_POSIX_ACL
309
310config NFS_COMMON
311 bool
f7790029 312 depends on NFSD || NFS_FS || LOCKD
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313 default y
314
9098c24f 315source "net/sunrpc/Kconfig"
9030aaf9 316source "fs/ceph/Kconfig"
bb26b963 317source "fs/cifs/Kconfig"
33a1a6fe 318source "fs/coda/Kconfig"
b2480c7f 319source "fs/afs/Kconfig"
0fcb4408 320source "fs/9p/Kconfig"
93fa58cb 321
ea0985ad 322endif # NETWORK_FILESYSTEMS
1da177e4 323
1da177e4 324source "fs/nls/Kconfig"
e7fd4179 325source "fs/dlm/Kconfig"
955405d1 326source "fs/unicode/Kconfig"
1da177e4 327
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328config IO_WQ
329 bool
330
1da177e4 331endmenu