1 # SPDX-License-Identifier: GPL-2.0-only <<
2 # 1 #
3 # File system configuration 2 # File system configuration
4 # 3 #
5 4
6 menu "File systems" 5 menu "File systems"
7 6
8 # Use unaligned word dcache accesses 7 # Use unaligned word dcache accesses
9 config DCACHE_WORD_ACCESS 8 config DCACHE_WORD_ACCESS
10 bool 9 bool
11 10
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 11 if BLOCK
34 12
35 source "fs/ext2/Kconfig" 13 source "fs/ext2/Kconfig"
>> 14 source "fs/ext3/Kconfig"
36 source "fs/ext4/Kconfig" 15 source "fs/ext4/Kconfig"
>> 16
>> 17 config FS_XIP
>> 18 # execute in place
>> 19 bool
>> 20 depends on EXT2_FS_XIP
>> 21 default y
>> 22
>> 23 source "fs/jbd/Kconfig"
37 source "fs/jbd2/Kconfig" 24 source "fs/jbd2/Kconfig"
38 25
39 config FS_MBCACHE 26 config FS_MBCACHE
40 # Meta block cache for Extended Attributes (ex 27 # Meta block cache for Extended Attributes (ext2/ext3/ext4)
41 tristate 28 tristate
42 default y if EXT2_FS=y && EXT2_FS_XATT 29 default y if EXT2_FS=y && EXT2_FS_XATTR
>> 30 default y if EXT3_FS=y && EXT3_FS_XATTR
43 default y if EXT4_FS=y 31 default y if EXT4_FS=y
44 default m if EXT2_FS_XATTR || EXT4_FS !! 32 default m if EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4_FS
45 33
46 source "fs/reiserfs/Kconfig" 34 source "fs/reiserfs/Kconfig"
47 source "fs/jfs/Kconfig" 35 source "fs/jfs/Kconfig"
48 36
49 source "fs/xfs/Kconfig" 37 source "fs/xfs/Kconfig"
50 source "fs/gfs2/Kconfig" 38 source "fs/gfs2/Kconfig"
51 source "fs/ocfs2/Kconfig" 39 source "fs/ocfs2/Kconfig"
52 source "fs/btrfs/Kconfig" 40 source "fs/btrfs/Kconfig"
53 source "fs/nilfs2/Kconfig" 41 source "fs/nilfs2/Kconfig"
54 source "fs/f2fs/Kconfig" <<
55 source "fs/bcachefs/Kconfig" <<
56 source "fs/zonefs/Kconfig" <<
57 42
58 endif # BLOCK 43 endif # BLOCK
59 44
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 45 # Posix ACL utility routines
107 # 46 #
108 # Note: Posix ACLs can be implemented without 47 # Note: Posix ACLs can be implemented without these helpers. Never use
109 # this symbol for ifdefs in core code. 48 # this symbol for ifdefs in core code.
110 # 49 #
111 config FS_POSIX_ACL 50 config FS_POSIX_ACL
112 def_bool n 51 def_bool n
113 52
114 config EXPORTFS 53 config EXPORTFS
115 tristate 54 tristate
116 55
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 56 config FILE_LOCKING
124 bool "Enable POSIX file locking API" i 57 bool "Enable POSIX file locking API" if EXPERT
125 default y 58 default y
126 help 59 help
127 This option enables standard file lo 60 This option enables standard file locking support, required
128 for filesystems like NFS and for the 61 for filesystems like NFS and for the flock() system
129 call. Disabling this option saves ab 62 call. Disabling this option saves about 11k.
130 63
131 source "fs/crypto/Kconfig" <<
132 <<
133 source "fs/verity/Kconfig" <<
134 <<
135 source "fs/notify/Kconfig" 64 source "fs/notify/Kconfig"
136 65
137 source "fs/quota/Kconfig" 66 source "fs/quota/Kconfig"
138 67
139 source "fs/autofs/Kconfig" !! 68 source "fs/autofs4/Kconfig"
140 source "fs/fuse/Kconfig" 69 source "fs/fuse/Kconfig"
141 source "fs/overlayfs/Kconfig" !! 70
>> 71 config GENERIC_ACL
>> 72 bool
>> 73 select FS_POSIX_ACL
142 74
143 menu "Caches" 75 menu "Caches"
144 76
145 source "fs/netfs/Kconfig" !! 77 source "fs/fscache/Kconfig"
146 source "fs/cachefiles/Kconfig" 78 source "fs/cachefiles/Kconfig"
147 79
148 endmenu 80 endmenu
149 81
150 if BLOCK 82 if BLOCK
151 menu "CD-ROM/DVD Filesystems" 83 menu "CD-ROM/DVD Filesystems"
152 84
153 source "fs/isofs/Kconfig" 85 source "fs/isofs/Kconfig"
154 source "fs/udf/Kconfig" 86 source "fs/udf/Kconfig"
155 87
156 endmenu 88 endmenu
157 endif # BLOCK 89 endif # BLOCK
158 90
159 if BLOCK 91 if BLOCK
160 menu "DOS/FAT/EXFAT/NT Filesystems" !! 92 menu "DOS/FAT/NT Filesystems"
161 93
162 source "fs/fat/Kconfig" 94 source "fs/fat/Kconfig"
163 source "fs/exfat/Kconfig" !! 95 source "fs/ntfs/Kconfig"
164 source "fs/ntfs3/Kconfig" <<
165 96
166 endmenu 97 endmenu
167 endif # BLOCK 98 endif # BLOCK
168 99
169 menu "Pseudo filesystems" 100 menu "Pseudo filesystems"
170 101
171 source "fs/proc/Kconfig" 102 source "fs/proc/Kconfig"
172 source "fs/kernfs/Kconfig" <<
173 source "fs/sysfs/Kconfig" 103 source "fs/sysfs/Kconfig"
174 104
175 config TMPFS 105 config TMPFS
176 bool "Tmpfs virtual memory file system 106 bool "Tmpfs virtual memory file system support (former shm fs)"
177 depends on SHMEM 107 depends on SHMEM
178 select MEMFD_CREATE <<
179 help 108 help
180 Tmpfs is a file system which keeps a 109 Tmpfs is a file system which keeps all files in virtual memory.
181 110
182 Everything in tmpfs is temporary in 111 Everything in tmpfs is temporary in the sense that no files will be
183 created on your hard drive. The file 112 created on your hard drive. The files live in memory and swap
184 space. If you unmount a tmpfs instan 113 space. If you unmount a tmpfs instance, everything stored therein is
185 lost. 114 lost.
186 115
187 See <file:Documentation/filesystems/ !! 116 See <file:Documentation/filesystems/tmpfs.txt> for details.
188 117
189 config TMPFS_POSIX_ACL 118 config TMPFS_POSIX_ACL
190 bool "Tmpfs POSIX Access Control Lists 119 bool "Tmpfs POSIX Access Control Lists"
191 depends on TMPFS 120 depends on TMPFS
192 select TMPFS_XATTR 121 select TMPFS_XATTR
193 select FS_POSIX_ACL !! 122 select GENERIC_ACL
194 help 123 help
195 POSIX Access Control Lists (ACLs) su 124 POSIX Access Control Lists (ACLs) support additional access rights
196 for users and groups beyond the stan 125 for users and groups beyond the standard owner/group/world scheme,
197 and this option selects support for 126 and this option selects support for ACLs specifically for tmpfs
198 filesystems. 127 filesystems.
199 128
200 If you've selected TMPFS, it's possi 129 If you've selected TMPFS, it's possible that you'll also need
201 this option as there are a number of 130 this option as there are a number of Linux distros that require
202 POSIX ACL support under /dev for cer 131 POSIX ACL support under /dev for certain features to work properly.
203 For example, some distros need this 132 For example, some distros need this feature for ALSA-related /dev
204 files for sound to work properly. I 133 files for sound to work properly. In short, if you're not sure,
205 say Y. 134 say Y.
206 135
>> 136 To learn more about Access Control Lists, visit the POSIX ACLs for
>> 137 Linux website <http://acl.bestbits.at/>.
>> 138
207 config TMPFS_XATTR 139 config TMPFS_XATTR
208 bool "Tmpfs extended attributes" 140 bool "Tmpfs extended attributes"
209 depends on TMPFS 141 depends on TMPFS
210 default n 142 default n
211 help 143 help
212 Extended attributes are name:value p 144 Extended attributes are name:value pairs associated with inodes by
213 the kernel or by users (see the attr !! 145 the kernel or by users (see the attr(5) manual page, or visit
>> 146 <http://acl.bestbits.at/> for details).
214 147
215 This enables support for the trusted !! 148 Currently this enables support for the trusted.* and
216 namespaces. !! 149 security.* namespaces.
217 150
218 You need this for POSIX ACL support 151 You need this for POSIX ACL support on tmpfs.
219 152
220 If unsure, say N. 153 If unsure, say N.
221 154
222 config TMPFS_INODE64 !! 155 config HUGETLBFS
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" 156 bool "HugeTLB file system support"
260 depends on X86 || SPARC64 || ARCH_SUPP !! 157 depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
261 depends on (SYSFS || SYSCTL) !! 158 SYS_SUPPORTS_HUGETLBFS || BROKEN
262 select MEMFD_CREATE <<
263 select PADATA if SMP <<
264 help 159 help
265 hugetlbfs is a filesystem backing fo 160 hugetlbfs is a filesystem backing for HugeTLB pages, based on
266 ramfs. For architectures that suppor 161 ramfs. For architectures that support it, say Y here and read
267 <file:Documentation/admin-guide/mm/h !! 162 <file:Documentation/vm/hugetlbpage.txt> for details.
268 163
269 If unsure, say N. 164 If unsure, say N.
270 165
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 166 config HUGETLB_PAGE
283 def_bool HUGETLBFS 167 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 <<
297 168
298 source "fs/configfs/Kconfig" 169 source "fs/configfs/Kconfig"
299 source "fs/efivarfs/Kconfig" <<
300 170
301 endmenu 171 endmenu
302 172
303 menuconfig MISC_FILESYSTEMS 173 menuconfig MISC_FILESYSTEMS
304 bool "Miscellaneous filesystems" 174 bool "Miscellaneous filesystems"
305 default y 175 default y
306 help !! 176 ---help---
307 Say Y here to get to see options for 177 Say Y here to get to see options for various miscellaneous
308 filesystems, such as filesystems tha 178 filesystems, such as filesystems that came from other
309 operating systems. 179 operating systems.
310 180
311 This option alone does not add any k 181 This option alone does not add any kernel code.
312 182
313 If you say N, all options in this su 183 If you say N, all options in this submenu will be skipped and
314 disabled; if unsure, say Y here. 184 disabled; if unsure, say Y here.
315 185
316 if MISC_FILESYSTEMS 186 if MISC_FILESYSTEMS
317 187
318 source "fs/orangefs/Kconfig" <<
319 source "fs/adfs/Kconfig" 188 source "fs/adfs/Kconfig"
320 source "fs/affs/Kconfig" 189 source "fs/affs/Kconfig"
321 source "fs/ecryptfs/Kconfig" 190 source "fs/ecryptfs/Kconfig"
322 source "fs/hfs/Kconfig" 191 source "fs/hfs/Kconfig"
323 source "fs/hfsplus/Kconfig" 192 source "fs/hfsplus/Kconfig"
324 source "fs/befs/Kconfig" 193 source "fs/befs/Kconfig"
325 source "fs/bfs/Kconfig" 194 source "fs/bfs/Kconfig"
326 source "fs/efs/Kconfig" 195 source "fs/efs/Kconfig"
327 source "fs/jffs2/Kconfig" 196 source "fs/jffs2/Kconfig"
328 # UBIFS File system configuration 197 # UBIFS File system configuration
329 source "fs/ubifs/Kconfig" 198 source "fs/ubifs/Kconfig"
>> 199 source "fs/logfs/Kconfig"
330 source "fs/cramfs/Kconfig" 200 source "fs/cramfs/Kconfig"
331 source "fs/squashfs/Kconfig" 201 source "fs/squashfs/Kconfig"
332 source "fs/freevxfs/Kconfig" 202 source "fs/freevxfs/Kconfig"
333 source "fs/minix/Kconfig" 203 source "fs/minix/Kconfig"
334 source "fs/omfs/Kconfig" 204 source "fs/omfs/Kconfig"
335 source "fs/hpfs/Kconfig" 205 source "fs/hpfs/Kconfig"
336 source "fs/qnx4/Kconfig" 206 source "fs/qnx4/Kconfig"
337 source "fs/qnx6/Kconfig" 207 source "fs/qnx6/Kconfig"
338 source "fs/romfs/Kconfig" 208 source "fs/romfs/Kconfig"
339 source "fs/pstore/Kconfig" 209 source "fs/pstore/Kconfig"
340 source "fs/sysv/Kconfig" 210 source "fs/sysv/Kconfig"
341 source "fs/ufs/Kconfig" 211 source "fs/ufs/Kconfig"
342 source "fs/erofs/Kconfig" !! 212 source "fs/exofs/Kconfig"
343 source "fs/vboxsf/Kconfig" !! 213 source "fs/f2fs/Kconfig"
>> 214 source "fs/efivarfs/Kconfig"
344 215
345 endif # MISC_FILESYSTEMS 216 endif # MISC_FILESYSTEMS
346 217
>> 218 source "fs/exofs/Kconfig.ore"
>> 219
347 menuconfig NETWORK_FILESYSTEMS 220 menuconfig NETWORK_FILESYSTEMS
348 bool "Network File Systems" 221 bool "Network File Systems"
349 default y 222 default y
350 depends on NET 223 depends on NET
351 help !! 224 ---help---
352 Say Y here to get to see options for 225 Say Y here to get to see options for network filesystems and
353 filesystem-related networking code, 226 filesystem-related networking code, such as NFS daemon and
354 RPCSEC security modules. 227 RPCSEC security modules.
355 228
356 This option alone does not add any k 229 This option alone does not add any kernel code.
357 230
358 If you say N, all options in this su 231 If you say N, all options in this submenu will be skipped and
359 disabled; if unsure, say Y here. 232 disabled; if unsure, say Y here.
360 233
361 if NETWORK_FILESYSTEMS 234 if NETWORK_FILESYSTEMS
362 235
363 source "fs/nfs/Kconfig" 236 source "fs/nfs/Kconfig"
364 source "fs/nfsd/Kconfig" 237 source "fs/nfsd/Kconfig"
365 238
366 config GRACE_PERIOD <<
367 tristate <<
368 <<
369 config LOCKD 239 config LOCKD
370 tristate 240 tristate
371 depends on FILE_LOCKING 241 depends on FILE_LOCKING
372 select GRACE_PERIOD <<
373 242
374 config LOCKD_V4 243 config LOCKD_V4
375 bool 244 bool
376 depends on NFSD || NFS_V3 !! 245 depends on NFSD_V3 || NFS_V3
377 depends on FILE_LOCKING 246 depends on FILE_LOCKING
378 default y 247 default y
379 248
380 config NFS_ACL_SUPPORT 249 config NFS_ACL_SUPPORT
381 tristate 250 tristate
382 select FS_POSIX_ACL 251 select FS_POSIX_ACL
383 252
384 config NFS_COMMON 253 config NFS_COMMON
385 bool 254 bool
386 depends on NFSD || NFS_FS || LOCKD !! 255 depends on NFSD || NFS_FS
387 default y 256 default y
388 257
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" 258 source "net/sunrpc/Kconfig"
417 source "fs/ceph/Kconfig" 259 source "fs/ceph/Kconfig"
418 !! 260 source "fs/cifs/Kconfig"
419 source "fs/smb/Kconfig" !! 261 source "fs/ncpfs/Kconfig"
420 source "fs/coda/Kconfig" 262 source "fs/coda/Kconfig"
421 source "fs/afs/Kconfig" 263 source "fs/afs/Kconfig"
422 source "fs/9p/Kconfig" 264 source "fs/9p/Kconfig"
423 265
424 endif # NETWORK_FILESYSTEMS 266 endif # NETWORK_FILESYSTEMS
425 267
426 source "fs/nls/Kconfig" 268 source "fs/nls/Kconfig"
427 source "fs/dlm/Kconfig" 269 source "fs/dlm/Kconfig"
428 source "fs/unicode/Kconfig" <<
429 <<
430 config IO_WQ <<
431 bool <<
432 270
433 endmenu 271 endmenu
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