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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
49config FS_DAX_PMD
50 bool
51 default FS_DAX
52 depends on FS_DAX
53 depends on ZONE_DEVICE
54 depends on TRANSPARENT_HUGEPAGE
55
56endif # BLOCK
57
58# Posix ACL utility routines
59#
60# Note: Posix ACLs can be implemented without these helpers. Never use
61# this symbol for ifdefs in core code.
62#
63config FS_POSIX_ACL
64 def_bool n
65
66config EXPORTFS
67 tristate
68
69config FILE_LOCKING
70 bool "Enable POSIX file locking API" if EXPERT
71 default y
72 help
73 This option enables standard file locking support, required
74 for filesystems like NFS and for the flock() system
75 call. Disabling this option saves about 11k.
76
77config MANDATORY_FILE_LOCKING
78 bool "Enable Mandatory file locking"
79 depends on FILE_LOCKING
80 default y
81 help
82 This option enables files appropriately marked files on appropriely
83 mounted filesystems to support mandatory locking.
84
85 To the best of my knowledge this is dead code that no one cares about.
86
87source "fs/crypto/Kconfig"
88
89source "fs/notify/Kconfig"
90
91source "fs/quota/Kconfig"
92
93source "fs/autofs4/Kconfig"
94source "fs/fuse/Kconfig"
95source "fs/overlayfs/Kconfig"
96
97menu "Caches"
98
99source "fs/fscache/Kconfig"
100source "fs/cachefiles/Kconfig"
101
102endmenu
103
104if BLOCK
105menu "CD-ROM/DVD Filesystems"
106
107source "fs/isofs/Kconfig"
108source "fs/udf/Kconfig"
109
110endmenu
111endif # BLOCK
112
113if BLOCK
114menu "DOS/FAT/NT Filesystems"
115
116source "fs/fat/Kconfig"
117source "fs/ntfs/Kconfig"
118
119endmenu
120endif # BLOCK
121
122menu "Pseudo filesystems"
123
124source "fs/proc/Kconfig"
125source "fs/kernfs/Kconfig"
126source "fs/sysfs/Kconfig"
127
128config TMPFS
129 bool "Tmpfs virtual memory file system support (former shm fs)"
130 depends on SHMEM
131 help
132 Tmpfs is a file system which keeps all files in virtual memory.
133
134 Everything in tmpfs is temporary in the sense that no files will be
135 created on your hard drive. The files live in memory and swap
136 space. If you unmount a tmpfs instance, everything stored therein is
137 lost.
138
139 See <file:Documentation/filesystems/tmpfs.txt> for details.
140
141config TMPFS_POSIX_ACL
142 bool "Tmpfs POSIX Access Control Lists"
143 depends on TMPFS
144 select TMPFS_XATTR
145 select FS_POSIX_ACL
146 help
147 POSIX Access Control Lists (ACLs) support additional access rights
148 for users and groups beyond the standard owner/group/world scheme,
149 and this option selects support for ACLs specifically for tmpfs
150 filesystems.
151
152 If you've selected TMPFS, it's possible that you'll also need
153 this option as there are a number of Linux distros that require
154 POSIX ACL support under /dev for certain features to work properly.
155 For example, some distros need this feature for ALSA-related /dev
156 files for sound to work properly. In short, if you're not sure,
157 say Y.
158
159 To learn more about Access Control Lists, visit the POSIX ACLs for
160 Linux website <http://acl.bestbits.at/>.
161
162config TMPFS_XATTR
163 bool "Tmpfs extended attributes"
164 depends on TMPFS
165 default n
166 help
167 Extended attributes are name:value pairs associated with inodes by
168 the kernel or by users (see the attr(5) manual page, or visit
169 <http://acl.bestbits.at/> for details).
170
171 Currently this enables support for the trusted.* and
172 security.* namespaces.
173
174 You need this for POSIX ACL support on tmpfs.
175
176 If unsure, say N.
177
178config HUGETLBFS
179 bool "HugeTLB file system support"
180 depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
181 SYS_SUPPORTS_HUGETLBFS || BROKEN
182 help
183 hugetlbfs is a filesystem backing for HugeTLB pages, based on
184 ramfs. For architectures that support it, say Y here and read
185 <file:Documentation/vm/hugetlbpage.txt> for details.
186
187 If unsure, say N.
188
189config HUGETLB_PAGE
190 def_bool HUGETLBFS
191
192source "fs/configfs/Kconfig"
193source "fs/efivarfs/Kconfig"
194
195endmenu
196
197menuconfig MISC_FILESYSTEMS
198 bool "Miscellaneous filesystems"
199 default y
200 ---help---
201 Say Y here to get to see options for various miscellaneous
202 filesystems, such as filesystems that came from other
203 operating systems.
204
205 This option alone does not add any kernel code.
206
207 If you say N, all options in this submenu will be skipped and
208 disabled; if unsure, say Y here.
209
210if MISC_FILESYSTEMS
211
212source "fs/orangefs/Kconfig"
213source "fs/adfs/Kconfig"
214source "fs/affs/Kconfig"
215source "fs/ecryptfs/Kconfig"
216source "fs/hfs/Kconfig"
217source "fs/hfsplus/Kconfig"
218source "fs/befs/Kconfig"
219source "fs/bfs/Kconfig"
220source "fs/efs/Kconfig"
221source "fs/jffs2/Kconfig"
222# UBIFS File system configuration
223source "fs/ubifs/Kconfig"
224source "fs/logfs/Kconfig"
225source "fs/cramfs/Kconfig"
226source "fs/squashfs/Kconfig"
227source "fs/freevxfs/Kconfig"
228source "fs/minix/Kconfig"
229source "fs/omfs/Kconfig"
230source "fs/hpfs/Kconfig"
231source "fs/qnx4/Kconfig"
232source "fs/qnx6/Kconfig"
233source "fs/romfs/Kconfig"
234source "fs/pstore/Kconfig"
235source "fs/sysv/Kconfig"
236source "fs/ufs/Kconfig"
237source "fs/exofs/Kconfig"
238
239endif # MISC_FILESYSTEMS
240
241source "fs/exofs/Kconfig.ore"
242
243menuconfig NETWORK_FILESYSTEMS
244 bool "Network File Systems"
245 default y
246 depends on NET
247 ---help---
248 Say Y here to get to see options for network filesystems and
249 filesystem-related networking code, such as NFS daemon and
250 RPCSEC security modules.
251
252 This option alone does not add any kernel code.
253
254 If you say N, all options in this submenu will be skipped and
255 disabled; if unsure, say Y here.
256
257if NETWORK_FILESYSTEMS
258
259source "fs/nfs/Kconfig"
260source "fs/nfsd/Kconfig"
261
262config GRACE_PERIOD
263 tristate
264
265config LOCKD
266 tristate
267 depends on FILE_LOCKING
268 select GRACE_PERIOD
269
270config LOCKD_V4
271 bool
272 depends on NFSD_V3 || NFS_V3
273 depends on FILE_LOCKING
274 default y
275
276config NFS_ACL_SUPPORT
277 tristate
278 select FS_POSIX_ACL
279
280config NFS_COMMON
281 bool
282 depends on NFSD || NFS_FS || LOCKD
283 default y
284
285source "net/sunrpc/Kconfig"
286source "fs/ceph/Kconfig"
287source "fs/cifs/Kconfig"
288source "fs/ncpfs/Kconfig"
289source "fs/coda/Kconfig"
290source "fs/afs/Kconfig"
291source "fs/9p/Kconfig"
292
293endif # NETWORK_FILESYSTEMS
294
295source "fs/nls/Kconfig"
296source "fs/dlm/Kconfig"
297
298endmenu
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# File system configuration
4#
5
6menu "File systems"
7
8# Use unaligned word dcache accesses
9config DCACHE_WORD_ACCESS
10 bool
11
12config VALIDATE_FS_PARSER
13 bool "Validate filesystem parameter description"
14 help
15 Enable this to perform validation of the parameter description for a
16 filesystem when it is registered.
17
18if BLOCK
19
20config FS_IOMAP
21 bool
22
23source "fs/ext2/Kconfig"
24source "fs/ext4/Kconfig"
25source "fs/jbd2/Kconfig"
26
27config FS_MBCACHE
28# Meta block cache for Extended Attributes (ext2/ext3/ext4)
29 tristate
30 default y if EXT2_FS=y && EXT2_FS_XATTR
31 default y if EXT4_FS=y
32 default m if EXT2_FS_XATTR || EXT4_FS
33
34source "fs/reiserfs/Kconfig"
35source "fs/jfs/Kconfig"
36
37source "fs/xfs/Kconfig"
38source "fs/gfs2/Kconfig"
39source "fs/ocfs2/Kconfig"
40source "fs/btrfs/Kconfig"
41source "fs/nilfs2/Kconfig"
42source "fs/f2fs/Kconfig"
43
44config FS_DAX
45 bool "Direct Access (DAX) support"
46 depends on MMU
47 depends on !(ARM || MIPS || SPARC)
48 select DEV_PAGEMAP_OPS if (ZONE_DEVICE && !FS_DAX_LIMITED)
49 select FS_IOMAP
50 select DAX
51 help
52 Direct Access (DAX) can be used on memory-backed block devices.
53 If the block device supports DAX and the filesystem supports DAX,
54 then you can avoid using the pagecache to buffer I/Os. Turning
55 on this option will compile in support for DAX; you will need to
56 mount the filesystem using the -o dax option.
57
58 If you do not have a block device that is capable of using this,
59 or if unsure, say N. Saying Y will increase the size of the kernel
60 by about 5kB.
61
62config FS_DAX_PMD
63 bool
64 default FS_DAX
65 depends on FS_DAX
66 depends on ZONE_DEVICE
67 depends on TRANSPARENT_HUGEPAGE
68
69# Selected by DAX drivers that do not expect filesystem DAX to support
70# get_user_pages() of DAX mappings. I.e. "limited" indicates no support
71# for fork() of processes with MAP_SHARED mappings or support for
72# direct-I/O to a DAX mapping.
73config FS_DAX_LIMITED
74 bool
75
76endif # BLOCK
77
78# Posix ACL utility routines
79#
80# Note: Posix ACLs can be implemented without these helpers. Never use
81# this symbol for ifdefs in core code.
82#
83config FS_POSIX_ACL
84 def_bool n
85
86config EXPORTFS
87 tristate
88
89config EXPORTFS_BLOCK_OPS
90 bool "Enable filesystem export operations for block IO"
91 help
92 This option enables the export operations for a filesystem to support
93 external block IO.
94
95config FILE_LOCKING
96 bool "Enable POSIX file locking API" if EXPERT
97 default y
98 help
99 This option enables standard file locking support, required
100 for filesystems like NFS and for the flock() system
101 call. Disabling this option saves about 11k.
102
103config MANDATORY_FILE_LOCKING
104 bool "Enable Mandatory file locking"
105 depends on FILE_LOCKING
106 default y
107 help
108 This option enables files appropriately marked files on appropriely
109 mounted filesystems to support mandatory locking.
110
111 To the best of my knowledge this is dead code that no one cares about.
112
113source "fs/crypto/Kconfig"
114
115source "fs/verity/Kconfig"
116
117source "fs/notify/Kconfig"
118
119source "fs/quota/Kconfig"
120
121source "fs/autofs/Kconfig"
122source "fs/fuse/Kconfig"
123source "fs/overlayfs/Kconfig"
124
125menu "Caches"
126
127source "fs/fscache/Kconfig"
128source "fs/cachefiles/Kconfig"
129
130endmenu
131
132if BLOCK
133menu "CD-ROM/DVD Filesystems"
134
135source "fs/isofs/Kconfig"
136source "fs/udf/Kconfig"
137
138endmenu
139endif # BLOCK
140
141if BLOCK
142menu "DOS/FAT/NT Filesystems"
143
144source "fs/fat/Kconfig"
145source "fs/ntfs/Kconfig"
146
147endmenu
148endif # BLOCK
149
150menu "Pseudo filesystems"
151
152source "fs/proc/Kconfig"
153source "fs/kernfs/Kconfig"
154source "fs/sysfs/Kconfig"
155
156config TMPFS
157 bool "Tmpfs virtual memory file system support (former shm fs)"
158 depends on SHMEM
159 help
160 Tmpfs is a file system which keeps all files in virtual memory.
161
162 Everything in tmpfs is temporary in the sense that no files will be
163 created on your hard drive. The files live in memory and swap
164 space. If you unmount a tmpfs instance, everything stored therein is
165 lost.
166
167 See <file:Documentation/filesystems/tmpfs.txt> for details.
168
169config TMPFS_POSIX_ACL
170 bool "Tmpfs POSIX Access Control Lists"
171 depends on TMPFS
172 select TMPFS_XATTR
173 select FS_POSIX_ACL
174 help
175 POSIX Access Control Lists (ACLs) support additional access rights
176 for users and groups beyond the standard owner/group/world scheme,
177 and this option selects support for ACLs specifically for tmpfs
178 filesystems.
179
180 If you've selected TMPFS, it's possible that you'll also need
181 this option as there are a number of Linux distros that require
182 POSIX ACL support under /dev for certain features to work properly.
183 For example, some distros need this feature for ALSA-related /dev
184 files for sound to work properly. In short, if you're not sure,
185 say Y.
186
187config TMPFS_XATTR
188 bool "Tmpfs extended attributes"
189 depends on TMPFS
190 default n
191 help
192 Extended attributes are name:value pairs associated with inodes by
193 the kernel or by users (see the attr(5) manual page for details).
194
195 Currently this enables support for the trusted.* and
196 security.* namespaces.
197
198 You need this for POSIX ACL support on tmpfs.
199
200 If unsure, say N.
201
202config HUGETLBFS
203 bool "HugeTLB file system support"
204 depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
205 SYS_SUPPORTS_HUGETLBFS || BROKEN
206 help
207 hugetlbfs is a filesystem backing for HugeTLB pages, based on
208 ramfs. For architectures that support it, say Y here and read
209 <file:Documentation/admin-guide/mm/hugetlbpage.rst> for details.
210
211 If unsure, say N.
212
213config HUGETLB_PAGE
214 def_bool HUGETLBFS
215
216config MEMFD_CREATE
217 def_bool TMPFS || HUGETLBFS
218
219config ARCH_HAS_GIGANTIC_PAGE
220 bool
221
222source "fs/configfs/Kconfig"
223source "fs/efivarfs/Kconfig"
224
225endmenu
226
227menuconfig MISC_FILESYSTEMS
228 bool "Miscellaneous filesystems"
229 default y
230 ---help---
231 Say Y here to get to see options for various miscellaneous
232 filesystems, such as filesystems that came from other
233 operating systems.
234
235 This option alone does not add any kernel code.
236
237 If you say N, all options in this submenu will be skipped and
238 disabled; if unsure, say Y here.
239
240if MISC_FILESYSTEMS
241
242source "fs/orangefs/Kconfig"
243source "fs/adfs/Kconfig"
244source "fs/affs/Kconfig"
245source "fs/ecryptfs/Kconfig"
246source "fs/hfs/Kconfig"
247source "fs/hfsplus/Kconfig"
248source "fs/befs/Kconfig"
249source "fs/bfs/Kconfig"
250source "fs/efs/Kconfig"
251source "fs/jffs2/Kconfig"
252# UBIFS File system configuration
253source "fs/ubifs/Kconfig"
254source "fs/cramfs/Kconfig"
255source "fs/squashfs/Kconfig"
256source "fs/freevxfs/Kconfig"
257source "fs/minix/Kconfig"
258source "fs/omfs/Kconfig"
259source "fs/hpfs/Kconfig"
260source "fs/qnx4/Kconfig"
261source "fs/qnx6/Kconfig"
262source "fs/romfs/Kconfig"
263source "fs/pstore/Kconfig"
264source "fs/sysv/Kconfig"
265source "fs/ufs/Kconfig"
266source "fs/erofs/Kconfig"
267
268endif # MISC_FILESYSTEMS
269
270menuconfig NETWORK_FILESYSTEMS
271 bool "Network File Systems"
272 default y
273 depends on NET
274 ---help---
275 Say Y here to get to see options for network filesystems and
276 filesystem-related networking code, such as NFS daemon and
277 RPCSEC security modules.
278
279 This option alone does not add any kernel code.
280
281 If you say N, all options in this submenu will be skipped and
282 disabled; if unsure, say Y here.
283
284if NETWORK_FILESYSTEMS
285
286source "fs/nfs/Kconfig"
287source "fs/nfsd/Kconfig"
288
289config GRACE_PERIOD
290 tristate
291
292config LOCKD
293 tristate
294 depends on FILE_LOCKING
295 select GRACE_PERIOD
296
297config LOCKD_V4
298 bool
299 depends on NFSD_V3 || NFS_V3
300 depends on FILE_LOCKING
301 default y
302
303config NFS_ACL_SUPPORT
304 tristate
305 select FS_POSIX_ACL
306
307config NFS_COMMON
308 bool
309 depends on NFSD || NFS_FS || LOCKD
310 default y
311
312source "net/sunrpc/Kconfig"
313source "fs/ceph/Kconfig"
314source "fs/cifs/Kconfig"
315source "fs/coda/Kconfig"
316source "fs/afs/Kconfig"
317source "fs/9p/Kconfig"
318
319endif # NETWORK_FILESYSTEMS
320
321source "fs/nls/Kconfig"
322source "fs/dlm/Kconfig"
323source "fs/unicode/Kconfig"
324
325endmenu