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