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 <<
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 7 if BLOCK
34 8
35 source "fs/ext2/Kconfig" 9 source "fs/ext2/Kconfig"
>> 10 source "fs/ext3/Kconfig"
36 source "fs/ext4/Kconfig" 11 source "fs/ext4/Kconfig"
>> 12
>> 13 config FS_XIP
>> 14 # execute in place
>> 15 bool
>> 16 depends on EXT2_FS_XIP
>> 17 default y
>> 18
>> 19 source "fs/jbd/Kconfig"
37 source "fs/jbd2/Kconfig" 20 source "fs/jbd2/Kconfig"
38 21
39 config FS_MBCACHE 22 config FS_MBCACHE
40 # Meta block cache for Extended Attributes (ex 23 # Meta block cache for Extended Attributes (ext2/ext3/ext4)
41 tristate 24 tristate
42 default y if EXT2_FS=y && EXT2_FS_XATT 25 default y if EXT2_FS=y && EXT2_FS_XATTR
43 default y if EXT4_FS=y !! 26 default y if EXT3_FS=y && EXT3_FS_XATTR
44 default m if EXT2_FS_XATTR || EXT4_FS !! 27 default y if EXT4_FS=y && EXT4_FS_XATTR
>> 28 default m if EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4_FS_XATTR
45 29
46 source "fs/reiserfs/Kconfig" 30 source "fs/reiserfs/Kconfig"
47 source "fs/jfs/Kconfig" 31 source "fs/jfs/Kconfig"
48 32
>> 33 config FS_POSIX_ACL
>> 34 # Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs/nfs4)
>> 35 #
>> 36 # NOTE: you can implement Posix ACLs without these helpers (XFS does).
>> 37 # Never use this symbol for ifdefs.
>> 38 #
>> 39 bool
>> 40 default n
>> 41
49 source "fs/xfs/Kconfig" 42 source "fs/xfs/Kconfig"
50 source "fs/gfs2/Kconfig" 43 source "fs/gfs2/Kconfig"
51 source "fs/ocfs2/Kconfig" 44 source "fs/ocfs2/Kconfig"
52 source "fs/btrfs/Kconfig" 45 source "fs/btrfs/Kconfig"
53 source "fs/nilfs2/Kconfig" 46 source "fs/nilfs2/Kconfig"
54 source "fs/f2fs/Kconfig" <<
55 source "fs/bcachefs/Kconfig" <<
56 source "fs/zonefs/Kconfig" <<
57 47
58 endif # BLOCK 48 endif # BLOCK
59 49
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 50 config FILE_LOCKING
124 bool "Enable POSIX file locking API" i !! 51 bool "Enable POSIX file locking API" if EMBEDDED
125 default y 52 default y
126 help 53 help
127 This option enables standard file lo 54 This option enables standard file locking support, required
128 for filesystems like NFS and for the 55 for filesystems like NFS and for the flock() system
129 call. Disabling this option saves ab 56 call. Disabling this option saves about 11k.
130 57
131 source "fs/crypto/Kconfig" <<
132 <<
133 source "fs/verity/Kconfig" <<
134 <<
135 source "fs/notify/Kconfig" 58 source "fs/notify/Kconfig"
136 59
137 source "fs/quota/Kconfig" 60 source "fs/quota/Kconfig"
138 61
139 source "fs/autofs/Kconfig" 62 source "fs/autofs/Kconfig"
>> 63 source "fs/autofs4/Kconfig"
140 source "fs/fuse/Kconfig" 64 source "fs/fuse/Kconfig"
141 source "fs/overlayfs/Kconfig" !! 65
>> 66 config CUSE
>> 67 tristate "Character device in Userpace support"
>> 68 depends on FUSE_FS
>> 69 help
>> 70 This FUSE extension allows character devices to be
>> 71 implemented in userspace.
>> 72
>> 73 If you want to develop or use userspace character device
>> 74 based on CUSE, answer Y or M.
>> 75
>> 76 config GENERIC_ACL
>> 77 bool
>> 78 select FS_POSIX_ACL
142 79
143 menu "Caches" 80 menu "Caches"
144 81
145 source "fs/netfs/Kconfig" !! 82 source "fs/fscache/Kconfig"
146 source "fs/cachefiles/Kconfig" 83 source "fs/cachefiles/Kconfig"
147 84
148 endmenu 85 endmenu
149 86
150 if BLOCK 87 if BLOCK
151 menu "CD-ROM/DVD Filesystems" 88 menu "CD-ROM/DVD Filesystems"
152 89
153 source "fs/isofs/Kconfig" 90 source "fs/isofs/Kconfig"
154 source "fs/udf/Kconfig" 91 source "fs/udf/Kconfig"
155 92
156 endmenu 93 endmenu
157 endif # BLOCK 94 endif # BLOCK
158 95
159 if BLOCK 96 if BLOCK
160 menu "DOS/FAT/EXFAT/NT Filesystems" !! 97 menu "DOS/FAT/NT Filesystems"
161 98
162 source "fs/fat/Kconfig" 99 source "fs/fat/Kconfig"
163 source "fs/exfat/Kconfig" !! 100 source "fs/ntfs/Kconfig"
164 source "fs/ntfs3/Kconfig" <<
165 101
166 endmenu 102 endmenu
167 endif # BLOCK 103 endif # BLOCK
168 104
169 menu "Pseudo filesystems" 105 menu "Pseudo filesystems"
170 106
171 source "fs/proc/Kconfig" 107 source "fs/proc/Kconfig"
172 source "fs/kernfs/Kconfig" <<
173 source "fs/sysfs/Kconfig" 108 source "fs/sysfs/Kconfig"
174 109
175 config TMPFS 110 config TMPFS
176 bool "Tmpfs virtual memory file system !! 111 bool "Virtual memory file system support (former shm fs)"
177 depends on SHMEM 112 depends on SHMEM
178 select MEMFD_CREATE <<
179 help 113 help
180 Tmpfs is a file system which keeps a 114 Tmpfs is a file system which keeps all files in virtual memory.
181 115
182 Everything in tmpfs is temporary in 116 Everything in tmpfs is temporary in the sense that no files will be
183 created on your hard drive. The file 117 created on your hard drive. The files live in memory and swap
184 space. If you unmount a tmpfs instan 118 space. If you unmount a tmpfs instance, everything stored therein is
185 lost. 119 lost.
186 120
187 See <file:Documentation/filesystems/ !! 121 See <file:Documentation/filesystems/tmpfs.txt> for details.
188 122
189 config TMPFS_POSIX_ACL 123 config TMPFS_POSIX_ACL
190 bool "Tmpfs POSIX Access Control Lists 124 bool "Tmpfs POSIX Access Control Lists"
191 depends on TMPFS 125 depends on TMPFS
192 select TMPFS_XATTR !! 126 select GENERIC_ACL
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 127 help
227 tmpfs has historically used only ino !! 128 POSIX Access Control Lists (ACLs) support permissions for users and
228 int. In some cases this can cause wr !! 129 groups beyond the owner/group/world scheme.
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 <<
237 130
238 To override this configured default, !! 131 To learn more about Access Control Lists, visit the POSIX ACLs for
239 option when mounting. !! 132 Linux website <http://acl.bestbits.at/>.
240 133
241 If unsure, say N. !! 134 If you don't know what Access Control Lists are, say N.
242 135
243 config TMPFS_QUOTA !! 136 config HUGETLBFS
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" 137 bool "HugeTLB file system support"
260 depends on X86 || SPARC64 || ARCH_SUPP !! 138 depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
261 depends on (SYSFS || SYSCTL) !! 139 SYS_SUPPORTS_HUGETLBFS || BROKEN
262 select MEMFD_CREATE <<
263 select PADATA if SMP <<
264 help 140 help
265 hugetlbfs is a filesystem backing fo 141 hugetlbfs is a filesystem backing for HugeTLB pages, based on
266 ramfs. For architectures that suppor 142 ramfs. For architectures that support it, say Y here and read
267 <file:Documentation/admin-guide/mm/h !! 143 <file:Documentation/vm/hugetlbpage.txt> for details.
268 144
269 If unsure, say N. 145 If unsure, say N.
270 146
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 147 config HUGETLB_PAGE
283 def_bool HUGETLBFS 148 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 <<
297 149
298 source "fs/configfs/Kconfig" 150 source "fs/configfs/Kconfig"
299 source "fs/efivarfs/Kconfig" <<
300 151
301 endmenu 152 endmenu
302 153
303 menuconfig MISC_FILESYSTEMS 154 menuconfig MISC_FILESYSTEMS
304 bool "Miscellaneous filesystems" 155 bool "Miscellaneous filesystems"
305 default y 156 default y
306 help !! 157 ---help---
307 Say Y here to get to see options for 158 Say Y here to get to see options for various miscellaneous
308 filesystems, such as filesystems tha 159 filesystems, such as filesystems that came from other
309 operating systems. 160 operating systems.
310 161
311 This option alone does not add any k 162 This option alone does not add any kernel code.
312 163
313 If you say N, all options in this su 164 If you say N, all options in this submenu will be skipped and
314 disabled; if unsure, say Y here. 165 disabled; if unsure, say Y here.
315 166
316 if MISC_FILESYSTEMS 167 if MISC_FILESYSTEMS
317 168
318 source "fs/orangefs/Kconfig" <<
319 source "fs/adfs/Kconfig" 169 source "fs/adfs/Kconfig"
320 source "fs/affs/Kconfig" 170 source "fs/affs/Kconfig"
321 source "fs/ecryptfs/Kconfig" 171 source "fs/ecryptfs/Kconfig"
322 source "fs/hfs/Kconfig" 172 source "fs/hfs/Kconfig"
323 source "fs/hfsplus/Kconfig" 173 source "fs/hfsplus/Kconfig"
324 source "fs/befs/Kconfig" 174 source "fs/befs/Kconfig"
325 source "fs/bfs/Kconfig" 175 source "fs/bfs/Kconfig"
326 source "fs/efs/Kconfig" 176 source "fs/efs/Kconfig"
327 source "fs/jffs2/Kconfig" 177 source "fs/jffs2/Kconfig"
328 # UBIFS File system configuration 178 # UBIFS File system configuration
329 source "fs/ubifs/Kconfig" 179 source "fs/ubifs/Kconfig"
330 source "fs/cramfs/Kconfig" 180 source "fs/cramfs/Kconfig"
331 source "fs/squashfs/Kconfig" 181 source "fs/squashfs/Kconfig"
332 source "fs/freevxfs/Kconfig" 182 source "fs/freevxfs/Kconfig"
333 source "fs/minix/Kconfig" 183 source "fs/minix/Kconfig"
334 source "fs/omfs/Kconfig" 184 source "fs/omfs/Kconfig"
335 source "fs/hpfs/Kconfig" 185 source "fs/hpfs/Kconfig"
336 source "fs/qnx4/Kconfig" 186 source "fs/qnx4/Kconfig"
337 source "fs/qnx6/Kconfig" <<
338 source "fs/romfs/Kconfig" 187 source "fs/romfs/Kconfig"
339 source "fs/pstore/Kconfig" <<
340 source "fs/sysv/Kconfig" 188 source "fs/sysv/Kconfig"
341 source "fs/ufs/Kconfig" 189 source "fs/ufs/Kconfig"
342 source "fs/erofs/Kconfig" !! 190 source "fs/exofs/Kconfig"
343 source "fs/vboxsf/Kconfig" <<
344 191
345 endif # MISC_FILESYSTEMS 192 endif # MISC_FILESYSTEMS
346 193
347 menuconfig NETWORK_FILESYSTEMS 194 menuconfig NETWORK_FILESYSTEMS
348 bool "Network File Systems" 195 bool "Network File Systems"
349 default y 196 default y
350 depends on NET 197 depends on NET
351 help !! 198 ---help---
352 Say Y here to get to see options for 199 Say Y here to get to see options for network filesystems and
353 filesystem-related networking code, 200 filesystem-related networking code, such as NFS daemon and
354 RPCSEC security modules. 201 RPCSEC security modules.
355 202
356 This option alone does not add any k 203 This option alone does not add any kernel code.
357 204
358 If you say N, all options in this su 205 If you say N, all options in this submenu will be skipped and
359 disabled; if unsure, say Y here. 206 disabled; if unsure, say Y here.
360 207
361 if NETWORK_FILESYSTEMS 208 if NETWORK_FILESYSTEMS
362 209
363 source "fs/nfs/Kconfig" 210 source "fs/nfs/Kconfig"
364 source "fs/nfsd/Kconfig" 211 source "fs/nfsd/Kconfig"
365 212
366 config GRACE_PERIOD <<
367 tristate <<
368 <<
369 config LOCKD 213 config LOCKD
370 tristate 214 tristate
371 depends on FILE_LOCKING 215 depends on FILE_LOCKING
372 select GRACE_PERIOD <<
373 216
374 config LOCKD_V4 217 config LOCKD_V4
375 bool 218 bool
376 depends on NFSD || NFS_V3 !! 219 depends on NFSD_V3 || NFS_V3
377 depends on FILE_LOCKING 220 depends on FILE_LOCKING
378 default y 221 default y
379 222
>> 223 config EXPORTFS
>> 224 tristate
>> 225
380 config NFS_ACL_SUPPORT 226 config NFS_ACL_SUPPORT
381 tristate 227 tristate
382 select FS_POSIX_ACL 228 select FS_POSIX_ACL
383 229
384 config NFS_COMMON 230 config NFS_COMMON
385 bool 231 bool
386 depends on NFSD || NFS_FS || LOCKD !! 232 depends on NFSD || NFS_FS
387 default y 233 default y
388 234
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" 235 source "net/sunrpc/Kconfig"
417 source "fs/ceph/Kconfig" !! 236 source "fs/smbfs/Kconfig"
418 !! 237 source "fs/cifs/Kconfig"
419 source "fs/smb/Kconfig" !! 238 source "fs/ncpfs/Kconfig"
420 source "fs/coda/Kconfig" 239 source "fs/coda/Kconfig"
421 source "fs/afs/Kconfig" 240 source "fs/afs/Kconfig"
422 source "fs/9p/Kconfig" 241 source "fs/9p/Kconfig"
423 242
424 endif # NETWORK_FILESYSTEMS 243 endif # NETWORK_FILESYSTEMS
425 244
>> 245 if BLOCK
>> 246 menu "Partition Types"
>> 247
>> 248 source "fs/partitions/Kconfig"
>> 249
>> 250 endmenu
>> 251 endif
>> 252
426 source "fs/nls/Kconfig" 253 source "fs/nls/Kconfig"
427 source "fs/dlm/Kconfig" 254 source "fs/dlm/Kconfig"
428 source "fs/unicode/Kconfig" <<
429 <<
430 config IO_WQ <<
431 bool <<
432 255
433 endmenu 256 endmenu
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.