1 # SPDX-License-Identifier: GPL-2.0-only
2 #
3 # File system configuration
4 #
5
6 menu "File systems"
7
8 # Use unaligned word dcache accesses
9 config DCACHE_WORD_ACCESS
10 bool
11
12 config VALIDATE_FS_PARSER
13 bool "Validate filesystem parameter de
14 help
15 Enable this to perform validation of
16 filesystem when it is registered.
17
18 config FS_IOMAP
19 bool
20
21 # Stackable filesystems
22 config FS_STACK
23 bool
24
25 config BUFFER_HEAD
26 bool
27
28 # old blockdev_direct_IO implementation. Use
29 config LEGACY_DIRECT_IO
30 depends on BUFFER_HEAD
31 bool
32
33 if BLOCK
34
35 source "fs/ext2/Kconfig"
36 source "fs/ext4/Kconfig"
37 source "fs/jbd2/Kconfig"
38
39 config FS_MBCACHE
40 # Meta block cache for Extended Attributes (ex
41 tristate
42 default y if EXT2_FS=y && EXT2_FS_XATT
43 default y if EXT4_FS=y
44 default m if EXT2_FS_XATTR || EXT4_FS
45
46 source "fs/reiserfs/Kconfig"
47 source "fs/jfs/Kconfig"
48
49 source "fs/xfs/Kconfig"
50 source "fs/gfs2/Kconfig"
51 source "fs/ocfs2/Kconfig"
52 source "fs/btrfs/Kconfig"
53 source "fs/nilfs2/Kconfig"
54 source "fs/f2fs/Kconfig"
55 source "fs/bcachefs/Kconfig"
56 source "fs/zonefs/Kconfig"
57
58 endif # BLOCK
59
60 config FS_DAX
61 bool "File system based Direct Access
62 depends on MMU
63 depends on ZONE_DEVICE || FS_DAX_LIMIT
64 select FS_IOMAP
65 select DAX
66 help
67 Direct Access (DAX) can be used on m
68 If the block device supports DAX and
69 then you can avoid using the pagecac
70 on this option will compile in suppo
71
72 For a DAX device to support file sys
73 struct pages. For the nfit based NV
74 using the ndctl utility:
75
76 # ndctl create-namespace --for
77 --mode=fsdax --map=mem
78
79 See the 'create-namespace' man page
80 --map=mem:
81 https://docs.pmem.io/ndctl-user-guid
82
83 For ndctl to work CONFIG_DEV_DAX nee
84 file systems DAX support needs to be
85 per-inode using a mount option as we
86 Documentation/filesystems/dax.rst fo
87
88 If you do not have a block device th
89 or if unsure, say N. Saying Y will
90 by about 5kB.
91
92 config FS_DAX_PMD
93 bool
94 default FS_DAX
95 depends on FS_DAX
96 depends on ZONE_DEVICE
97 depends on TRANSPARENT_HUGEPAGE
98
99 # Selected by DAX drivers that do not expect f
100 # get_user_pages() of DAX mappings. I.e. "limi
101 # for fork() of processes with MAP_SHARED mapp
102 # direct-I/O to a DAX mapping.
103 config FS_DAX_LIMITED
104 bool
105
106 # Posix ACL utility routines
107 #
108 # Note: Posix ACLs can be implemented without
109 # this symbol for ifdefs in core code.
110 #
111 config FS_POSIX_ACL
112 def_bool n
113
114 config EXPORTFS
115 tristate
116
117 config EXPORTFS_BLOCK_OPS
118 bool "Enable filesystem export operati
119 help
120 This option enables the export opera
121 external block IO.
122
123 config FILE_LOCKING
124 bool "Enable POSIX file locking API" i
125 default y
126 help
127 This option enables standard file lo
128 for filesystems like NFS and for the
129 call. Disabling this option saves ab
130
131 source "fs/crypto/Kconfig"
132
133 source "fs/verity/Kconfig"
134
135 source "fs/notify/Kconfig"
136
137 source "fs/quota/Kconfig"
138
139 source "fs/autofs/Kconfig"
140 source "fs/fuse/Kconfig"
141 source "fs/overlayfs/Kconfig"
142
143 menu "Caches"
144
145 source "fs/netfs/Kconfig"
146 source "fs/cachefiles/Kconfig"
147
148 endmenu
149
150 if BLOCK
151 menu "CD-ROM/DVD Filesystems"
152
153 source "fs/isofs/Kconfig"
154 source "fs/udf/Kconfig"
155
156 endmenu
157 endif # BLOCK
158
159 if BLOCK
160 menu "DOS/FAT/EXFAT/NT Filesystems"
161
162 source "fs/fat/Kconfig"
163 source "fs/exfat/Kconfig"
164 source "fs/ntfs3/Kconfig"
165
166 endmenu
167 endif # BLOCK
168
169 menu "Pseudo filesystems"
170
171 source "fs/proc/Kconfig"
172 source "fs/kernfs/Kconfig"
173 source "fs/sysfs/Kconfig"
174
175 config TMPFS
176 bool "Tmpfs virtual memory file system
177 depends on SHMEM
178 select MEMFD_CREATE
179 help
180 Tmpfs is a file system which keeps a
181
182 Everything in tmpfs is temporary in
183 created on your hard drive. The file
184 space. If you unmount a tmpfs instan
185 lost.
186
187 See <file:Documentation/filesystems/
188
189 config TMPFS_POSIX_ACL
190 bool "Tmpfs POSIX Access Control Lists
191 depends on TMPFS
192 select TMPFS_XATTR
193 select FS_POSIX_ACL
194 help
195 POSIX Access Control Lists (ACLs) su
196 for users and groups beyond the stan
197 and this option selects support for
198 filesystems.
199
200 If you've selected TMPFS, it's possi
201 this option as there are a number of
202 POSIX ACL support under /dev for cer
203 For example, some distros need this
204 files for sound to work properly. I
205 say Y.
206
207 config TMPFS_XATTR
208 bool "Tmpfs extended attributes"
209 depends on TMPFS
210 default n
211 help
212 Extended attributes are name:value p
213 the kernel or by users (see the attr
214
215 This enables support for the trusted
216 namespaces.
217
218 You need this for POSIX ACL support
219
220 If unsure, say N.
221
222 config TMPFS_INODE64
223 bool "Use 64-bit ino_t by default in t
224 depends on TMPFS && 64BIT
225 default n
226 help
227 tmpfs has historically used only ino
228 int. In some cases this can cause wr
229 in multiple files with the same inod
230 option makes tmpfs use the full widt
231 needing to specify the inode64 optio
232
233 But if a long-lived tmpfs is to be a
234 ancient that opening a file larger t
235 the INODE64 config option and inode6
236 failing with EOVERFLOW once 33-bit i
237
238 To override this configured default,
239 option when mounting.
240
241 If unsure, say N.
242
243 config TMPFS_QUOTA
244 bool "Tmpfs quota support"
245 depends on TMPFS
246 select QUOTA
247 help
248 Quota support allows to set per user
249 usage. Say Y to enable quota suppor
250 user and group quota enforcement wit
251 mount options.
252
253 If unsure, say N.
254
255 config ARCH_SUPPORTS_HUGETLBFS
256 def_bool n
257
258 menuconfig HUGETLBFS
259 bool "HugeTLB file system support"
260 depends on X86 || SPARC64 || ARCH_SUPP
261 depends on (SYSFS || SYSCTL)
262 select MEMFD_CREATE
263 select PADATA if SMP
264 help
265 hugetlbfs is a filesystem backing fo
266 ramfs. For architectures that suppor
267 <file:Documentation/admin-guide/mm/h
268
269 If unsure, say N.
270
271 if HUGETLBFS
272 config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_O
273 bool "HugeTLB Vmemmap Optimization (HV
274 default n
275 depends on HUGETLB_PAGE_OPTIMIZE_VMEMM
276 help
277 The HugeTLB Vmemmap Optimization (HV
278 enable HVO by default. It can be dis
279 (boot command line) or hugetlb_optim
280 endif # HUGETLBFS
281
282 config HUGETLB_PAGE
283 def_bool HUGETLBFS
284 select XARRAY_MULTI
285
286 config HUGETLB_PAGE_OPTIMIZE_VMEMMAP
287 def_bool HUGETLB_PAGE
288 depends on ARCH_WANT_OPTIMIZE_HUGETLB_
289 depends on SPARSEMEM_VMEMMAP
290
291 config HUGETLB_PMD_PAGE_TABLE_SHARING
292 def_bool HUGETLB_PAGE
293 depends on ARCH_WANT_HUGE_PMD_SHARE &&
294
295 config ARCH_HAS_GIGANTIC_PAGE
296 bool
297
298 source "fs/configfs/Kconfig"
299 source "fs/efivarfs/Kconfig"
300
301 endmenu
302
303 menuconfig MISC_FILESYSTEMS
304 bool "Miscellaneous filesystems"
305 default y
306 help
307 Say Y here to get to see options for
308 filesystems, such as filesystems tha
309 operating systems.
310
311 This option alone does not add any k
312
313 If you say N, all options in this su
314 disabled; if unsure, say Y here.
315
316 if MISC_FILESYSTEMS
317
318 source "fs/orangefs/Kconfig"
319 source "fs/adfs/Kconfig"
320 source "fs/affs/Kconfig"
321 source "fs/ecryptfs/Kconfig"
322 source "fs/hfs/Kconfig"
323 source "fs/hfsplus/Kconfig"
324 source "fs/befs/Kconfig"
325 source "fs/bfs/Kconfig"
326 source "fs/efs/Kconfig"
327 source "fs/jffs2/Kconfig"
328 # UBIFS File system configuration
329 source "fs/ubifs/Kconfig"
330 source "fs/cramfs/Kconfig"
331 source "fs/squashfs/Kconfig"
332 source "fs/freevxfs/Kconfig"
333 source "fs/minix/Kconfig"
334 source "fs/omfs/Kconfig"
335 source "fs/hpfs/Kconfig"
336 source "fs/qnx4/Kconfig"
337 source "fs/qnx6/Kconfig"
338 source "fs/romfs/Kconfig"
339 source "fs/pstore/Kconfig"
340 source "fs/sysv/Kconfig"
341 source "fs/ufs/Kconfig"
342 source "fs/erofs/Kconfig"
343 source "fs/vboxsf/Kconfig"
344
345 endif # MISC_FILESYSTEMS
346
347 menuconfig NETWORK_FILESYSTEMS
348 bool "Network File Systems"
349 default y
350 depends on NET
351 help
352 Say Y here to get to see options for
353 filesystem-related networking code,
354 RPCSEC security modules.
355
356 This option alone does not add any k
357
358 If you say N, all options in this su
359 disabled; if unsure, say Y here.
360
361 if NETWORK_FILESYSTEMS
362
363 source "fs/nfs/Kconfig"
364 source "fs/nfsd/Kconfig"
365
366 config GRACE_PERIOD
367 tristate
368
369 config LOCKD
370 tristate
371 depends on FILE_LOCKING
372 select GRACE_PERIOD
373
374 config LOCKD_V4
375 bool
376 depends on NFSD || NFS_V3
377 depends on FILE_LOCKING
378 default y
379
380 config NFS_ACL_SUPPORT
381 tristate
382 select FS_POSIX_ACL
383
384 config NFS_COMMON
385 bool
386 depends on NFSD || NFS_FS || LOCKD
387 default y
388
389 config NFS_COMMON_LOCALIO_SUPPORT
390 tristate
391 depends on NFS_LOCALIO
392 default y if NFSD=y || NFS_FS=y
393 default m if NFSD=m && NFS_FS=m
394 select SUNRPC
395
396 config NFS_LOCALIO
397 bool "NFS client and server support fo
398 depends on NFSD && NFS_FS
399 select NFS_COMMON_LOCALIO_SUPPORT
400 default n
401 help
402 Some NFS servers support an auxiliar
403 that is not an official part of the
404
405 This option enables support for the
406 kernel's NFS server and client. Enab
407 NFS clients to bypass the network wh
408 writes to the local NFS server.
409
410 If unsure, say N.
411
412 config NFS_V4_2_SSC_HELPER
413 bool
414 default y if NFS_V4_2
415
416 source "net/sunrpc/Kconfig"
417 source "fs/ceph/Kconfig"
418
419 source "fs/smb/Kconfig"
420 source "fs/coda/Kconfig"
421 source "fs/afs/Kconfig"
422 source "fs/9p/Kconfig"
423
424 endif # NETWORK_FILESYSTEMS
425
426 source "fs/nls/Kconfig"
427 source "fs/dlm/Kconfig"
428 source "fs/unicode/Kconfig"
429
430 config IO_WQ
431 bool
432
433 endmenu
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