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Linux/fs/Kconfig

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

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