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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# File system configuration
3#
4
5menu "File systems"
6
David Howells93614012006-09-30 20:45:40 +02007if BLOCK
8
Linus Torvalds1da177e2005-04-16 15:20:36 -07009config EXT2_FS
10 tristate "Second extended fs support"
11 help
12 Ext2 is a standard Linux file system for hard disks.
13
14 To compile this file system support as a module, choose M here: the
Jan Engelhardtd23edbd2006-12-12 19:07:45 +010015 module will be called ext2.
Linus Torvalds1da177e2005-04-16 15:20:36 -070016
17 If unsure, say Y.
18
19config EXT2_FS_XATTR
20 bool "Ext2 extended attributes"
21 depends on EXT2_FS
22 help
23 Extended attributes are name:value pairs associated with inodes by
24 the kernel or by users (see the attr(5) manual page, or visit
25 <http://acl.bestbits.at/> for details).
26
27 If unsure, say N.
28
29config EXT2_FS_POSIX_ACL
30 bool "Ext2 POSIX Access Control Lists"
31 depends on EXT2_FS_XATTR
Andreas Gruenbacherb84c2152005-07-07 17:56:57 -070032 select FS_POSIX_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 help
34 Posix Access Control Lists (ACLs) support permissions for users and
35 groups beyond the owner/group/world scheme.
36
37 To learn more about Access Control Lists, visit the Posix ACLs for
38 Linux website <http://acl.bestbits.at/>.
39
40 If you don't know what Access Control Lists are, say N
41
42config EXT2_FS_SECURITY
43 bool "Ext2 Security Labels"
44 depends on EXT2_FS_XATTR
45 help
46 Security labels support alternative access control models
47 implemented by security modules like SELinux. This option
48 enables an extended attribute handler for file security
49 labels in the ext2 filesystem.
50
51 If you are not using a security module that requires using
52 extended attributes for file security labels, say N.
53
Carsten Otte6d791252005-06-23 22:05:26 -070054config EXT2_FS_XIP
55 bool "Ext2 execute in place support"
Al Viro0c426f22006-06-23 02:04:08 -070056 depends on EXT2_FS && MMU
Carsten Otte6d791252005-06-23 22:05:26 -070057 help
58 Execute in place can be used on memory-backed block devices. If you
59 enable this option, you can select to mount block devices which are
60 capable of this feature without using the page cache.
61
62 If you do not use a block device that is capable of using this,
63 or if unsure, say N.
64
65config FS_XIP
66# execute in place
67 bool
68 depends on EXT2_FS_XIP
69 default y
70
Linus Torvalds1da177e2005-04-16 15:20:36 -070071config EXT3_FS
72 tristate "Ext3 journalling file system support"
Mark Fashehb4e40a52005-12-15 14:31:24 -080073 select JBD
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 help
Matt LaPlantecc2e2762006-10-03 22:22:29 +020075 This is the journalling version of the Second extended file system
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 (often called ext3), the de facto standard Linux file system
77 (method to organize files on a storage device) for hard disks.
78
Matt LaPlantecc2e2762006-10-03 22:22:29 +020079 The journalling code included in this driver means you do not have
Linus Torvalds1da177e2005-04-16 15:20:36 -070080 to run e2fsck (file system checker) on your file systems after a
81 crash. The journal keeps track of any changes that were being made
82 at the time the system crashed, and can ensure that your file system
83 is consistent without the need for a lengthy check.
84
85 Other than adding the journal to the file system, the on-disk format
86 of ext3 is identical to ext2. It is possible to freely switch
87 between using the ext3 driver and the ext2 driver, as long as the
88 file system has been cleanly unmounted, or e2fsck is run on the file
89 system.
90
91 To add a journal on an existing ext2 file system or change the
92 behavior of ext3 file systems, you can use the tune2fs utility ("man
93 tune2fs"). To modify attributes of files and directories on ext3
94 file systems, use chattr ("man chattr"). You need to be using
95 e2fsprogs version 1.20 or later in order to create ext3 journals
96 (available at <http://sourceforge.net/projects/e2fsprogs/>).
97
98 To compile this file system support as a module, choose M here: the
Jan Engelhardtd23edbd2006-12-12 19:07:45 +010099 module will be called ext3.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100
101config EXT3_FS_XATTR
102 bool "Ext3 extended attributes"
103 depends on EXT3_FS
104 default y
105 help
106 Extended attributes are name:value pairs associated with inodes by
107 the kernel or by users (see the attr(5) manual page, or visit
108 <http://acl.bestbits.at/> for details).
109
110 If unsure, say N.
111
112 You need this for POSIX ACL support on ext3.
113
114config EXT3_FS_POSIX_ACL
115 bool "Ext3 POSIX Access Control Lists"
116 depends on EXT3_FS_XATTR
Andreas Gruenbacherb84c2152005-07-07 17:56:57 -0700117 select FS_POSIX_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 help
119 Posix Access Control Lists (ACLs) support permissions for users and
120 groups beyond the owner/group/world scheme.
121
122 To learn more about Access Control Lists, visit the Posix ACLs for
123 Linux website <http://acl.bestbits.at/>.
124
125 If you don't know what Access Control Lists are, say N
126
127config EXT3_FS_SECURITY
128 bool "Ext3 Security Labels"
129 depends on EXT3_FS_XATTR
130 help
131 Security labels support alternative access control models
132 implemented by security modules like SELinux. This option
133 enables an extended attribute handler for file security
134 labels in the ext3 filesystem.
135
136 If you are not using a security module that requires using
137 extended attributes for file security labels, say N.
138
Mingming Cao02ea2102006-10-11 01:20:56 -0700139config EXT4DEV_FS
140 tristate "Ext4dev/ext4 extended fs support development (EXPERIMENTAL)"
141 depends on EXPERIMENTAL
Mingming Caodab291a2006-10-11 01:21:01 -0700142 select JBD2
143 help
Mingming Cao02ea2102006-10-11 01:20:56 -0700144 Ext4dev is a predecessor filesystem of the next generation
145 extended fs ext4, based on ext3 filesystem code. It will be
146 renamed ext4 fs later, once ext4dev is mature and stabilized.
147
Mingming Caodab291a2006-10-11 01:21:01 -0700148 Unlike the change from ext2 filesystem to ext3 filesystem,
149 the on-disk format of ext4dev is not the same as ext3 any more:
Mingming Cao02ea2102006-10-11 01:20:56 -0700150 it is based on extent maps and it supports 48-bit physical block
Mingming Caodab291a2006-10-11 01:21:01 -0700151 numbers. These combined on-disk format changes will allow
Mingming Cao02ea2102006-10-11 01:20:56 -0700152 ext4dev/ext4 to handle more than 16 TB filesystem volumes --
153 a hard limit that ext3 cannot overcome without changing the
Mingming Caodab291a2006-10-11 01:21:01 -0700154 on-disk format.
Mingming Cao02ea2102006-10-11 01:20:56 -0700155
156 Other than extent maps and 48-bit block numbers, ext4dev also is
Mingming Caodab291a2006-10-11 01:21:01 -0700157 likely to have other new features such as persistent preallocation,
Mingming Cao02ea2102006-10-11 01:20:56 -0700158 high resolution time stamps, and larger file support etc. These
Mingming Caodab291a2006-10-11 01:21:01 -0700159 features will be added to ext4dev gradually.
Mingming Cao02ea2102006-10-11 01:20:56 -0700160
161 To compile this file system support as a module, choose M here. The
Jan Engelhardtd23edbd2006-12-12 19:07:45 +0100162 module will be called ext4dev.
Mingming Cao02ea2102006-10-11 01:20:56 -0700163
164 If unsure, say N.
165
166config EXT4DEV_FS_XATTR
167 bool "Ext4dev extended attributes"
168 depends on EXT4DEV_FS
169 default y
170 help
171 Extended attributes are name:value pairs associated with inodes by
172 the kernel or by users (see the attr(5) manual page, or visit
173 <http://acl.bestbits.at/> for details).
174
175 If unsure, say N.
176
177 You need this for POSIX ACL support on ext4dev/ext4.
178
179config EXT4DEV_FS_POSIX_ACL
180 bool "Ext4dev POSIX Access Control Lists"
181 depends on EXT4DEV_FS_XATTR
182 select FS_POSIX_ACL
183 help
184 POSIX Access Control Lists (ACLs) support permissions for users and
185 groups beyond the owner/group/world scheme.
186
187 To learn more about Access Control Lists, visit the POSIX ACLs for
188 Linux website <http://acl.bestbits.at/>.
189
190 If you don't know what Access Control Lists are, say N
191
192config EXT4DEV_FS_SECURITY
193 bool "Ext4dev Security Labels"
194 depends on EXT4DEV_FS_XATTR
195 help
196 Security labels support alternative access control models
197 implemented by security modules like SELinux. This option
198 enables an extended attribute handler for file security
199 labels in the ext4dev/ext4 filesystem.
200
201 If you are not using a security module that requires using
202 extended attributes for file security labels, say N.
203
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204config JBD
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 tristate
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 help
Matt LaPlantecc2e2762006-10-03 22:22:29 +0200207 This is a generic journalling layer for block devices. It is
Mark Fashehb4e40a52005-12-15 14:31:24 -0800208 currently used by the ext3 and OCFS2 file systems, but it could
209 also be used to add journal support to other file systems or block
210 devices such as RAID or LVM.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211
Mark Fashehb4e40a52005-12-15 14:31:24 -0800212 If you are using the ext3 or OCFS2 file systems, you need to
213 say Y here. If you are not using ext3 OCFS2 then you will probably
214 want to say N.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215
216 To compile this device as a module, choose M here: the module will be
Mark Fashehb4e40a52005-12-15 14:31:24 -0800217 called jbd. If you are compiling ext3 or OCFS2 into the kernel,
218 you cannot compile this code as a module.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219
220config JBD_DEBUG
221 bool "JBD (ext3) debugging support"
222 depends on JBD
223 help
224 If you are using the ext3 journaled file system (or potentially any
225 other file system/device using JBD), this option allows you to
226 enable debugging output while the system is running, in order to
227 help track down any problems you are having. By default the
228 debugging output will be turned off.
229
230 If you select Y here, then you will be able to turn on debugging
231 with "echo N > /proc/sys/fs/jbd-debug", where N is a number between
232 1 and 5, the higher the number, the more debugging output is
233 generated. To turn debugging off again, do
234 "echo 0 > /proc/sys/fs/jbd-debug".
235
Mingming Caodab291a2006-10-11 01:21:01 -0700236config JBD2
237 tristate
238 help
239 This is a generic journaling layer for block devices that support
240 both 32-bit and 64-bit block numbers. It is currently used by
241 the ext4dev/ext4 filesystem, but it could also be used to add
242 journal support to other file systems or block devices such
243 as RAID or LVM.
244
245 If you are using ext4dev/ext4, you need to say Y here. If you are not
246 using ext4dev/ext4 then you will probably want to say N.
247
248 To compile this device as a module, choose M here. The module will be
249 called jbd2. If you are compiling ext4dev/ext4 into the kernel,
250 you cannot compile this code as a module.
251
252config JBD2_DEBUG
253 bool "JBD2 (ext4dev/ext4) debugging support"
254 depends on JBD2
255 help
256 If you are using the ext4dev/ext4 journaled file system (or
257 potentially any other filesystem/device using JBD2), this option
258 allows you to enable debugging output while the system is running,
259 in order to help track down any problems you are having.
260 By default, the debugging output will be turned off.
261
262 If you select Y here, then you will be able to turn on debugging
263 with "echo N > /proc/sys/fs/jbd2-debug", where N is a number between
264 1 and 5. The higher the number, the more debugging output is
265 generated. To turn debugging off again, do
266 "echo 0 > /proc/sys/fs/jbd2-debug".
267
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268config FS_MBCACHE
Mingming Cao02ea2102006-10-11 01:20:56 -0700269# Meta block cache for Extended Attributes (ext2/ext3/ext4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 tristate
Mingming Cao02ea2102006-10-11 01:20:56 -0700271 depends on EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4DEV_FS_XATTR
272 default y if EXT2_FS=y || EXT3_FS=y || EXT4DEV_FS=y
273 default m if EXT2_FS=m || EXT3_FS=m || EXT4DEV_FS=m
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274
275config REISERFS_FS
276 tristate "Reiserfs support"
277 help
278 Stores not just filenames but the files themselves in a balanced
Matt LaPlantecc2e2762006-10-03 22:22:29 +0200279 tree. Uses journalling.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280
281 Balanced trees are more efficient than traditional file system
282 architectural foundations.
283
284 In general, ReiserFS is as fast as ext2, but is very efficient with
285 large directories and small files. Additional patches are needed
286 for NFS and quotas, please see <http://www.namesys.com/> for links.
287
288 It is more easily extended to have features currently found in
289 database and keyword search systems than block allocation based file
290 systems are. The next version will be so extended, and will support
291 plugins consistent with our motto ``It takes more than a license to
292 make source code open.''
293
294 Read <http://www.namesys.com/> to learn more about reiserfs.
295
296 Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com.
297
298 If you like it, you can pay us to add new features to it that you
299 need, buy a support contract, or pay us to port it to another OS.
300
301config REISERFS_CHECK
302 bool "Enable reiserfs debug mode"
303 depends on REISERFS_FS
304 help
305 If you set this to Y, then ReiserFS will perform every check it can
306 possibly imagine of its internal consistency throughout its
307 operation. It will also go substantially slower. More than once we
308 have forgotten that this was on, and then gone despondent over the
309 latest benchmarks.:-) Use of this option allows our team to go all
310 out in checking for consistency when debugging without fear of its
311 effect on end users. If you are on the verge of sending in a bug
312 report, say Y and you might get a useful error message. Almost
313 everyone should say N.
314
315config REISERFS_PROC_INFO
316 bool "Stats in /proc/fs/reiserfs"
Randy Dunlap880ebdc2007-05-08 00:26:59 -0700317 depends on REISERFS_FS && PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 help
319 Create under /proc/fs/reiserfs a hierarchy of files, displaying
320 various ReiserFS statistics and internal data at the expense of
321 making your kernel or module slightly larger (+8 KB). This also
322 increases the amount of kernel memory required for each mount.
323 Almost everyone but ReiserFS developers and people fine-tuning
324 reiserfs or tracing problems should say N.
325
326config REISERFS_FS_XATTR
327 bool "ReiserFS extended attributes"
328 depends on REISERFS_FS
329 help
330 Extended attributes are name:value pairs associated with inodes by
331 the kernel or by users (see the attr(5) manual page, or visit
332 <http://acl.bestbits.at/> for details).
333
334 If unsure, say N.
335
336config REISERFS_FS_POSIX_ACL
337 bool "ReiserFS POSIX Access Control Lists"
338 depends on REISERFS_FS_XATTR
Andreas Gruenbacherb84c2152005-07-07 17:56:57 -0700339 select FS_POSIX_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 help
341 Posix Access Control Lists (ACLs) support permissions for users and
342 groups beyond the owner/group/world scheme.
343
344 To learn more about Access Control Lists, visit the Posix ACLs for
345 Linux website <http://acl.bestbits.at/>.
346
347 If you don't know what Access Control Lists are, say N
348
349config REISERFS_FS_SECURITY
350 bool "ReiserFS Security Labels"
351 depends on REISERFS_FS_XATTR
352 help
353 Security labels support alternative access control models
354 implemented by security modules like SELinux. This option
355 enables an extended attribute handler for file security
356 labels in the ReiserFS filesystem.
357
358 If you are not using a security module that requires using
359 extended attributes for file security labels, say N.
360
361config JFS_FS
362 tristate "JFS filesystem support"
363 select NLS
364 help
365 This is a port of IBM's Journaled Filesystem . More information is
366 available in the file <file:Documentation/filesystems/jfs.txt>.
367
368 If you do not intend to use the JFS filesystem, say N.
369
370config JFS_POSIX_ACL
371 bool "JFS POSIX Access Control Lists"
372 depends on JFS_FS
Andreas Gruenbacherb84c2152005-07-07 17:56:57 -0700373 select FS_POSIX_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374 help
375 Posix Access Control Lists (ACLs) support permissions for users and
376 groups beyond the owner/group/world scheme.
377
378 To learn more about Access Control Lists, visit the Posix ACLs for
379 Linux website <http://acl.bestbits.at/>.
380
381 If you don't know what Access Control Lists are, say N
382
383config JFS_SECURITY
384 bool "JFS Security Labels"
385 depends on JFS_FS
386 help
387 Security labels support alternative access control models
388 implemented by security modules like SELinux. This option
389 enables an extended attribute handler for file security
390 labels in the jfs filesystem.
391
392 If you are not using a security module that requires using
393 extended attributes for file security labels, say N.
394
395config JFS_DEBUG
396 bool "JFS debugging"
397 depends on JFS_FS
398 help
399 If you are experiencing any problems with the JFS filesystem, say
400 Y here. This will result in additional debugging messages to be
401 written to the system log. Under normal circumstances, this
402 results in very little overhead.
403
404config JFS_STATISTICS
405 bool "JFS statistics"
406 depends on JFS_FS
407 help
408 Enabling this option will cause statistics from the JFS file system
409 to be made available to the user in the /proc/fs/jfs/ directory.
410
411config FS_POSIX_ACL
412# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs)
413#
414# NOTE: you can implement Posix ACLs without these helpers (XFS does).
415# Never use this symbol for ifdefs.
416#
417 bool
Andreas Gruenbacherb84c2152005-07-07 17:56:57 -0700418 default n
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419
420source "fs/xfs/Kconfig"
David Teiglandf7825dc2006-01-16 16:43:37 +0000421source "fs/gfs2/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422
Mark Fashehb4e40a52005-12-15 14:31:24 -0800423config OCFS2_FS
Mark Fasheh02ed8412006-09-14 10:28:06 -0700424 tristate "OCFS2 file system support"
425 depends on NET && SYSFS
Mark Fashehb4e40a52005-12-15 14:31:24 -0800426 select CONFIGFS_FS
427 select JBD
428 select CRC32
Mark Fashehb4e40a52005-12-15 14:31:24 -0800429 help
430 OCFS2 is a general purpose extent based shared disk cluster file
431 system with many similarities to ext3. It supports 64 bit inode
432 numbers, and has automatically extending metadata groups which may
433 also make it attractive for non-clustered use.
434
435 You'll want to install the ocfs2-tools package in order to at least
436 get "mount.ocfs2".
437
438 Project web page: http://oss.oracle.com/projects/ocfs2
439 Tools web page: http://oss.oracle.com/projects/ocfs2-tools
440 OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/
441
442 Note: Features which OCFS2 does not support yet:
443 - extended attributes
Mark Fashehb4e40a52005-12-15 14:31:24 -0800444 - shared writeable mmap
445 - loopback is supported, but data written will not
446 be cluster coherent.
447 - quotas
448 - cluster aware flock
449 - Directory change notification (F_NOTIFY)
450 - Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease)
451 - POSIX ACLs
452 - readpages / writepages (not user visible)
453
Joel Becker2b388c62006-05-10 18:28:59 -0700454config OCFS2_DEBUG_MASKLOG
455 bool "OCFS2 logging support"
456 depends on OCFS2_FS
457 default y
458 help
459 The ocfs2 filesystem has an extensive logging system. The system
460 allows selection of events to log via files in /sys/o2cb/logmask/.
461 This option will enlarge your kernel, but it allows debugging of
462 ocfs2 filesystem issues.
463
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464config MINIX_FS
465 tristate "Minix fs support"
466 help
467 Minix is a simple operating system used in many classes about OS's.
468 The minix file system (method to organize files on a hard disk
469 partition or a floppy disk) was the original file system for Linux,
470 but has been superseded by the second extended file system ext2fs.
471 You don't want to use the minix file system on your hard disk
472 because of certain built-in restrictions, but it is sometimes found
473 on older Linux floppy disks. This option will enlarge your kernel
474 by about 28 KB. If unsure, say N.
475
476 To compile this file system support as a module, choose M here: the
477 module will be called minix. Note that the file system of your root
478 partition (the one containing the directory /) cannot be compiled as
479 a module.
480
481config ROMFS_FS
482 tristate "ROM file system support"
483 ---help---
484 This is a very small read-only file system mainly intended for
485 initial ram disks of installation disks, but it could be used for
486 other read-only media as well. Read
487 <file:Documentation/filesystems/romfs.txt> for details.
488
489 To compile this file system support as a module, choose M here: the
490 module will be called romfs. Note that the file system of your
491 root partition (the one containing the directory /) cannot be a
492 module.
493
494 If you don't know whether you need it, then you don't need it:
495 answer N.
496
David Howells93614012006-09-30 20:45:40 +0200497endif
498
Robert Love0eeca282005-07-12 17:06:03 -0400499config INOTIFY
500 bool "Inotify file change notification support"
501 default y
502 ---help---
Amy Griffis2d9048e2006-06-01 13:10:59 -0700503 Say Y here to enable inotify support. Inotify is a file change
504 notification system and a replacement for dnotify. Inotify fixes
505 numerous shortcomings in dnotify and introduces several new features
506 including multiple file events, one-shot support, and unmount
Robert Love3de11742005-08-04 13:07:08 -0700507 notification.
508
509 For more information, see Documentation/filesystems/inotify.txt
Robert Love0eeca282005-07-12 17:06:03 -0400510
511 If unsure, say Y.
512
Amy Griffis2d9048e2006-06-01 13:10:59 -0700513config INOTIFY_USER
514 bool "Inotify support for userspace"
515 depends on INOTIFY
516 default y
517 ---help---
518 Say Y here to enable inotify support for userspace, including the
519 associated system calls. Inotify allows monitoring of both files and
520 directories via a single open fd. Events are read from the file
521 descriptor, which is also select()- and poll()-able.
522
523 For more information, see Documentation/filesystems/inotify.txt
524
525 If unsure, say Y.
526
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527config QUOTA
528 bool "Quota support"
529 help
530 If you say Y here, you will be able to set per user limits for disk
531 usage (also called disk quotas). Currently, it works for the
532 ext2, ext3, and reiserfs file system. ext3 also supports journalled
533 quotas for which you don't need to run quotacheck(8) after an unclean
Adrian Bunk919532a2005-09-06 15:17:22 -0700534 shutdown.
535 For further details, read the Quota mini-HOWTO, available from
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536 <http://www.tldp.org/docs.html#howto>, or the documentation provided
537 with the quota tools. Probably the quota support is only useful for
538 multi user systems. If unsure, say N.
539
540config QFMT_V1
541 tristate "Old quota format support"
542 depends on QUOTA
543 help
544 This quota format was (is) used by kernels earlier than 2.4.22. If
545 you have quota working and you don't want to convert to new quota
546 format say Y here.
547
548config QFMT_V2
549 tristate "Quota format v2 support"
550 depends on QUOTA
551 help
552 This quota format allows using quotas with 32-bit UIDs/GIDs. If you
Adrian Bunk919532a2005-09-06 15:17:22 -0700553 need this functionality say Y here.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554
555config QUOTACTL
556 bool
557 depends on XFS_QUOTA || QUOTA
558 default y
559
560config DNOTIFY
561 bool "Dnotify support" if EMBEDDED
562 default y
563 help
564 Dnotify is a directory-based per-fd file change notification system
565 that uses signals to communicate events to user-space. There exist
566 superior alternatives, but some applications may still rely on
567 dnotify.
568
569 Because of this, if unsure, say Y.
570
571config AUTOFS_FS
572 tristate "Kernel automounter support"
573 help
574 The automounter is a tool to automatically mount remote file systems
575 on demand. This implementation is partially kernel-based to reduce
576 overhead in the already-mounted case; this is unlike the BSD
577 automounter (amd), which is a pure user space daemon.
578
579 To use the automounter you need the user-space tools from the autofs
580 package; you can find the location in <file:Documentation/Changes>.
581 You also want to answer Y to "NFS file system support", below.
582
583 If you want to use the newer version of the automounter with more
584 features, say N here and say Y to "Kernel automounter v4 support",
585 below.
586
587 To compile this support as a module, choose M here: the module will be
588 called autofs.
589
590 If you are not a part of a fairly large, distributed network, you
591 probably do not need an automounter, and can say N here.
592
593config AUTOFS4_FS
594 tristate "Kernel automounter version 4 support (also supports v3)"
595 help
596 The automounter is a tool to automatically mount remote file systems
597 on demand. This implementation is partially kernel-based to reduce
598 overhead in the already-mounted case; this is unlike the BSD
599 automounter (amd), which is a pure user space daemon.
600
601 To use the automounter you need the user-space tools from
602 <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
603 want to answer Y to "NFS file system support", below.
604
605 To compile this support as a module, choose M here: the module will be
606 called autofs4. You will need to add "alias autofs autofs4" to your
607 modules configuration file.
608
609 If you are not a part of a fairly large, distributed network or
610 don't have a laptop which needs to dynamically reconfigure to the
611 local network, you probably do not need an automounter, and can say
612 N here.
613
Miklos Szeredi04578f12005-09-09 13:10:22 -0700614config FUSE_FS
615 tristate "Filesystem in Userspace support"
616 help
617 With FUSE it is possible to implement a fully functional filesystem
618 in a userspace program.
619
620 There's also companion library: libfuse. This library along with
621 utilities is available from the FUSE homepage:
622 <http://fuse.sourceforge.net/>
623
Miklos Szeredi909021e2005-09-27 21:45:20 -0700624 See <file:Documentation/filesystems/fuse.txt> for more information.
625 See <file:Documentation/Changes> for needed library/utility version.
626
Miklos Szeredi04578f12005-09-09 13:10:22 -0700627 If you want to develop a userspace FS, or if you want to use
628 a filesystem based on FUSE, answer Y or M.
629
Randy Dunlapf2fbc6c2006-10-19 23:28:35 -0700630config GENERIC_ACL
631 bool
632 select FS_POSIX_ACL
633
David Howells93614012006-09-30 20:45:40 +0200634if BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635menu "CD-ROM/DVD Filesystems"
636
637config ISO9660_FS
638 tristate "ISO 9660 CDROM file system support"
639 help
640 This is the standard file system used on CD-ROMs. It was previously
641 known as "High Sierra File System" and is called "hsfs" on other
642 Unix systems. The so-called Rock-Ridge extensions which allow for
643 long Unix filenames and symbolic links are also supported by this
644 driver. If you have a CD-ROM drive and want to do more with it than
645 just listen to audio CDs and watch its LEDs, say Y (and read
646 <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO,
647 available from <http://www.tldp.org/docs.html#howto>), thereby
648 enlarging your kernel by about 27 KB; otherwise say N.
649
650 To compile this file system support as a module, choose M here: the
651 module will be called isofs.
652
653config JOLIET
654 bool "Microsoft Joliet CDROM extensions"
655 depends on ISO9660_FS
656 select NLS
657 help
658 Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
659 which allows for long filenames in unicode format (unicode is the
660 new 16 bit character code, successor to ASCII, which encodes the
661 characters of almost all languages of the world; see
662 <http://www.unicode.org/> for more information). Say Y here if you
663 want to be able to read Joliet CD-ROMs under Linux.
664
665config ZISOFS
666 bool "Transparent decompression extension"
667 depends on ISO9660_FS
668 select ZLIB_INFLATE
669 help
670 This is a Linux-specific extension to RockRidge which lets you store
671 data in compressed form on a CD-ROM and have it transparently
672 decompressed when the CD-ROM is accessed. See
673 <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
674 necessary to create such a filesystem. Say Y here if you want to be
675 able to read such compressed CD-ROMs.
676
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677config UDF_FS
678 tristate "UDF file system support"
679 help
680 This is the new file system used on some CD-ROMs and DVDs. Say Y if
681 you intend to mount DVD discs or CDRW's written in packet mode, or
682 if written to by other UDF utilities, such as DirectCD.
683 Please read <file:Documentation/filesystems/udf.txt>.
684
685 To compile this file system support as a module, choose M here: the
686 module will be called udf.
687
688 If unsure, say N.
689
690config UDF_NLS
691 bool
692 default y
693 depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
694
695endmenu
David Howells93614012006-09-30 20:45:40 +0200696endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697
David Howells93614012006-09-30 20:45:40 +0200698if BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699menu "DOS/FAT/NT Filesystems"
700
701config FAT_FS
702 tristate
703 select NLS
704 help
705 If you want to use one of the FAT-based file systems (the MS-DOS and
706 VFAT (Windows 95) file systems), then you must say Y or M here
707 to include FAT support. You will then be able to mount partitions or
708 diskettes with FAT-based file systems and transparently access the
709 files on them, i.e. MSDOS files will look and behave just like all
710 other Unix files.
711
712 This FAT support is not a file system in itself, it only provides
713 the foundation for the other file systems. You will have to say Y or
714 M to at least one of "MSDOS fs support" or "VFAT fs support" in
715 order to make use of it.
716
717 Another way to read and write MSDOS floppies and hard drive
718 partitions from within Linux (but not transparently) is with the
719 mtools ("man mtools") program suite. You don't need to say Y here in
720 order to do that.
721
722 If you need to move large files on floppies between a DOS and a
723 Linux box, say Y here, mount the floppy under Linux with an MSDOS
724 file system and use GNU tar's M option. GNU tar is a program
725 available for Unix and DOS ("man tar" or "info tar").
726
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727 The FAT support will enlarge your kernel by about 37 KB. If unsure,
728 say Y.
729
730 To compile this as a module, choose M here: the module will be called
731 fat. Note that if you compile the FAT support as a module, you
732 cannot compile any of the FAT-based file systems into the kernel
733 -- they will have to be modules as well.
734
735config MSDOS_FS
736 tristate "MSDOS fs support"
737 select FAT_FS
738 help
739 This allows you to mount MSDOS partitions of your hard drive (unless
740 they are compressed; to access compressed MSDOS partitions under
741 Linux, you can either use the DOS emulator DOSEMU, described in the
742 DOSEMU-HOWTO, available from
743 <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
744 <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
745 intend to use dosemu with a non-compressed MSDOS partition, say Y
746 here) and MSDOS floppies. This means that file access becomes
747 transparent, i.e. the MSDOS files look and behave just like all
748 other Unix files.
749
750 If you have Windows 95 or Windows NT installed on your MSDOS
751 partitions, you should use the VFAT file system (say Y to "VFAT fs
752 support" below), or you will not be able to see the long filenames
753 generated by Windows 95 / Windows NT.
754
755 This option will enlarge your kernel by about 7 KB. If unsure,
756 answer Y. This will only work if you said Y to "DOS FAT fs support"
757 as well. To compile this as a module, choose M here: the module will
758 be called msdos.
759
760config VFAT_FS
761 tristate "VFAT (Windows-95) fs support"
762 select FAT_FS
763 help
764 This option provides support for normal Windows file systems with
765 long filenames. That includes non-compressed FAT-based file systems
766 used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
767 programs from the mtools package.
768
769 The VFAT support enlarges your kernel by about 10 KB and it only
770 works if you said Y to the "DOS FAT fs support" above. Please read
771 the file <file:Documentation/filesystems/vfat.txt> for details. If
772 unsure, say Y.
773
774 To compile this as a module, choose M here: the module will be called
775 vfat.
776
777config FAT_DEFAULT_CODEPAGE
778 int "Default codepage for FAT"
779 depends on MSDOS_FS || VFAT_FS
780 default 437
781 help
782 This option should be set to the codepage of your FAT filesystems.
783 It can be overridden with the "codepage" mount option.
784 See <file:Documentation/filesystems/vfat.txt> for more information.
785
786config FAT_DEFAULT_IOCHARSET
787 string "Default iocharset for FAT"
788 depends on VFAT_FS
789 default "iso8859-1"
790 help
791 Set this to the default input/output character set you'd
792 like FAT to use. It should probably match the character set
793 that most of your FAT filesystems use, and can be overridden
794 with the "iocharset" mount option for FAT filesystems.
795 Note that "utf8" is not recommended for FAT filesystems.
796 If unsure, you shouldn't set "utf8" here.
797 See <file:Documentation/filesystems/vfat.txt> for more information.
798
799config NTFS_FS
800 tristate "NTFS file system support"
801 select NLS
802 help
803 NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
804
805 Saying Y or M here enables read support. There is partial, but
806 safe, write support available. For write support you must also
807 say Y to "NTFS write support" below.
808
809 There are also a number of user-space tools available, called
810 ntfsprogs. These include ntfsundelete and ntfsresize, that work
811 without NTFS support enabled in the kernel.
812
813 This is a rewrite from scratch of Linux NTFS support and replaced
814 the old NTFS code starting with Linux 2.5.11. A backport to
815 the Linux 2.4 kernel series is separately available as a patch
816 from the project web site.
817
818 For more information see <file:Documentation/filesystems/ntfs.txt>
819 and <http://linux-ntfs.sourceforge.net/>.
820
821 To compile this file system support as a module, choose M here: the
822 module will be called ntfs.
823
824 If you are not using Windows NT, 2000, XP or 2003 in addition to
825 Linux on your computer it is safe to say N.
826
827config NTFS_DEBUG
828 bool "NTFS debugging support"
829 depends on NTFS_FS
830 help
831 If you are experiencing any problems with the NTFS file system, say
832 Y here. This will result in additional consistency checks to be
833 performed by the driver as well as additional debugging messages to
834 be written to the system log. Note that debugging messages are
835 disabled by default. To enable them, supply the option debug_msgs=1
836 at the kernel command line when booting the kernel or as an option
837 to insmod when loading the ntfs module. Once the driver is active,
838 you can enable debugging messages by doing (as root):
839 echo 1 > /proc/sys/fs/ntfs-debug
840 Replacing the "1" with "0" would disable debug messages.
841
842 If you leave debugging messages disabled, this results in little
843 overhead, but enabling debug messages results in very significant
844 slowdown of the system.
845
846 When reporting bugs, please try to have available a full dump of
847 debugging messages while the misbehaviour was occurring.
848
849config NTFS_RW
850 bool "NTFS write support"
851 depends on NTFS_FS
852 help
853 This enables the partial, but safe, write support in the NTFS driver.
854
855 The only supported operation is overwriting existing files, without
856 changing the file length. No file or directory creation, deletion or
857 renaming is possible. Note only non-resident files can be written to
858 so you may find that some very small files (<500 bytes or so) cannot
859 be written to.
860
861 While we cannot guarantee that it will not damage any data, we have
862 so far not received a single report where the driver would have
863 damaged someones data so we assume it is perfectly safe to use.
864
865 Note: While write support is safe in this version (a rewrite from
866 scratch of the NTFS support), it should be noted that the old NTFS
867 write support, included in Linux 2.5.10 and before (since 1997),
868 is not safe.
869
870 This is currently useful with TopologiLinux. TopologiLinux is run
871 on top of any DOS/Microsoft Windows system without partitioning your
872 hard disk. Unlike other Linux distributions TopologiLinux does not
873 need its own partition. For more information see
874 <http://topologi-linux.sourceforge.net/>
875
876 It is perfectly safe to say N here.
877
878endmenu
David Howells93614012006-09-30 20:45:40 +0200879endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880
881menu "Pseudo filesystems"
882
883config PROC_FS
H. Peter Anvin69755652006-06-25 05:48:08 -0700884 bool "/proc file system support" if EMBEDDED
885 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886 help
887 This is a virtual file system providing information about the status
888 of the system. "Virtual" means that it doesn't take up any space on
889 your hard disk: the files are created on the fly by the kernel when
890 you try to access them. Also, you cannot read the files with older
891 version of the program less: you need to use more or cat.
892
893 It's totally cool; for example, "cat /proc/interrupts" gives
894 information about what the different IRQs are used for at the moment
895 (there is a small number of Interrupt ReQuest lines in your computer
896 that are used by the attached devices to gain the CPU's attention --
897 often a source of trouble if two devices are mistakenly configured
898 to use the same IRQ). The program procinfo to display some
899 information about your system gathered from the /proc file system.
900
901 Before you can use the /proc file system, it has to be mounted,
902 meaning it has to be given a location in the directory hierarchy.
903 That location should be /proc. A command such as "mount -t proc proc
904 /proc" or the equivalent line in /etc/fstab does the job.
905
906 The /proc file system is explained in the file
907 <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
908 ("man 5 proc").
909
910 This option will enlarge your kernel by about 67 KB. Several
911 programs depend on this, so everyone should say Y here.
912
913config PROC_KCORE
914 bool "/proc/kcore support" if !ARM
915 depends on PROC_FS && MMU
916
Vivek Goyal666bfdd2005-06-25 14:58:21 -0700917config PROC_VMCORE
918 bool "/proc/vmcore support (EXPERIMENTAL)"
Maneesh Soni05970d42006-01-09 20:51:52 -0800919 depends on PROC_FS && EXPERIMENTAL && CRASH_DUMP
Vivek Goyal68250ba2006-04-10 22:54:30 -0700920 default y
Vivek Goyal666bfdd2005-06-25 14:58:21 -0700921 help
922 Exports the dump image of crashed kernel in ELF format.
923
Eric W. Biedermanb89a8172006-09-27 01:51:04 -0700924config PROC_SYSCTL
925 bool "Sysctl support (/proc/sys)" if EMBEDDED
926 depends on PROC_FS
927 select SYSCTL
928 default y
929 ---help---
930 The sysctl interface provides a means of dynamically changing
931 certain kernel parameters and variables on the fly without requiring
932 a recompile of the kernel or reboot of the system. The primary
933 interface is through /proc/sys. If you say Y here a tree of
934 modifiable sysctl entries will be generated beneath the
935 /proc/sys directory. They are explained in the files
936 in <file:Documentation/sysctl/>. Note that enabling this
937 option will enlarge the kernel by at least 8 KB.
938
939 As it is generally a good thing, you should say Y here unless
940 building a kernel for install/rescue disks or your system is very
941 limited in memory.
942
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943config SYSFS
944 bool "sysfs file system support" if EMBEDDED
945 default y
946 help
947 The sysfs filesystem is a virtual filesystem that the kernel uses to
948 export internal kernel objects, their attributes, and their
949 relationships to one another.
950
951 Users can use sysfs to ascertain useful information about the running
952 kernel, such as the devices the kernel has discovered on each bus and
953 which driver each is bound to. sysfs can also be used to tune devices
954 and other kernel subsystems.
955
956 Some system agents rely on the information in sysfs to operate.
957 /sbin/hotplug uses device and object attributes in sysfs to assist in
Jan Engelhardt03a67a42006-11-30 05:32:19 +0100958 delegating policy decisions, like persistently naming devices.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959
960 sysfs is currently used by the block subsystem to mount the root
961 partition. If sysfs is disabled you must specify the boot device on
962 the kernel boot command line via its major and minor numbers. For
963 example, "root=03:01" for /dev/hda1.
964
965 Designers of embedded systems may wish to say N here to conserve space.
966
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967config TMPFS
968 bool "Virtual memory file system support (former shm fs)"
969 help
970 Tmpfs is a file system which keeps all files in virtual memory.
971
972 Everything in tmpfs is temporary in the sense that no files will be
973 created on your hard drive. The files live in memory and swap
974 space. If you unmount a tmpfs instance, everything stored therein is
975 lost.
976
977 See <file:Documentation/filesystems/tmpfs.txt> for details.
978
Andreas Gruenbacher39f02472006-09-29 02:01:35 -0700979config TMPFS_POSIX_ACL
980 bool "Tmpfs POSIX Access Control Lists"
981 depends on TMPFS
982 select GENERIC_ACL
983 help
984 POSIX Access Control Lists (ACLs) support permissions for users and
985 groups beyond the owner/group/world scheme.
986
987 To learn more about Access Control Lists, visit the POSIX ACLs for
988 Linux website <http://acl.bestbits.at/>.
989
990 If you don't know what Access Control Lists are, say N.
991
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992config HUGETLBFS
993 bool "HugeTLB file system support"
Robert P. J. Daybef1f402006-12-12 20:04:19 +0100994 depends on X86 || IA64 || PPC64 || SPARC64 || SUPERH || BROKEN
Arthur Othienodda27d12006-04-18 22:20:57 -0700995 help
996 hugetlbfs is a filesystem backing for HugeTLB pages, based on
997 ramfs. For architectures that support it, say Y here and read
998 <file:Documentation/vm/hugetlbpage.txt> for details.
999
1000 If unsure, say N.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
1002config HUGETLB_PAGE
1003 def_bool HUGETLBFS
1004
1005config RAMFS
1006 bool
1007 default y
1008 ---help---
1009 Ramfs is a file system which keeps all files in RAM. It allows
1010 read and write access.
1011
1012 It is more of an programming example than a useable file system. If
1013 you need a file system which lives in RAM with limit checking use
1014 tmpfs.
1015
1016 To compile this as a module, choose M here: the module will be called
1017 ramfs.
1018
Joel Becker7063fbf2005-12-15 14:29:43 -08001019config CONFIGFS_FS
1020 tristate "Userspace-driven configuration filesystem (EXPERIMENTAL)"
Adrian Bunk65714b92006-03-26 14:25:52 +02001021 depends on SYSFS && EXPERIMENTAL
Joel Becker7063fbf2005-12-15 14:29:43 -08001022 help
1023 configfs is a ram-based filesystem that provides the converse
1024 of sysfs's functionality. Where sysfs is a filesystem-based
1025 view of kernel objects, configfs is a filesystem-based manager
1026 of kernel objects, or config_items.
1027
1028 Both sysfs and configfs can and should exist together on the
1029 same system. One is not a replacement for the other.
1030
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031endmenu
1032
1033menu "Miscellaneous filesystems"
1034
1035config ADFS_FS
1036 tristate "ADFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001037 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038 help
1039 The Acorn Disc Filing System is the standard file system of the
1040 RiscOS operating system which runs on Acorn's ARM-based Risc PC
1041 systems and the Acorn Archimedes range of machines. If you say Y
1042 here, Linux will be able to read from ADFS partitions on hard drives
1043 and from ADFS-formatted floppy discs. If you also want to be able to
1044 write to those devices, say Y to "ADFS write support" below.
1045
1046 The ADFS partition should be the first partition (i.e.,
1047 /dev/[hs]d?1) on each of your drives. Please read the file
1048 <file:Documentation/filesystems/adfs.txt> for further details.
1049
1050 To compile this code as a module, choose M here: the module will be
1051 called adfs.
1052
1053 If unsure, say N.
1054
1055config ADFS_FS_RW
1056 bool "ADFS write support (DANGEROUS)"
1057 depends on ADFS_FS
1058 help
1059 If you say Y here, you will be able to write to ADFS partitions on
1060 hard drives and ADFS-formatted floppy disks. This is experimental
1061 codes, so if you're unsure, say N.
1062
1063config AFFS_FS
1064 tristate "Amiga FFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001065 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066 help
1067 The Fast File System (FFS) is the common file system used on hard
1068 disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y
1069 if you want to be able to read and write files from and to an Amiga
1070 FFS partition on your hard drive. Amiga floppies however cannot be
1071 read with this driver due to an incompatibility of the floppy
1072 controller used in an Amiga and the standard floppy controller in
1073 PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
1074 and <file:fs/affs/Changes>.
1075
1076 With this driver you can also mount disk files used by Bernd
1077 Schmidt's Un*X Amiga Emulator
1078 (<http://www.freiburg.linux.de/~uae/>).
1079 If you want to do this, you will also need to say Y or M to "Loop
1080 device support", above.
1081
1082 To compile this file system support as a module, choose M here: the
1083 module will be called affs. If unsure, say N.
1084
Michael Halcrow237fead2006-10-04 02:16:22 -07001085config ECRYPT_FS
1086 tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
Michael Halcrow88b4a072007-02-12 00:53:43 -08001087 depends on EXPERIMENTAL && KEYS && CRYPTO && NET
Michael Halcrow237fead2006-10-04 02:16:22 -07001088 help
1089 Encrypted filesystem that operates on the VFS layer. See
1090 <file:Documentation/ecryptfs.txt> to learn more about
1091 eCryptfs. Userspace components are required and can be
1092 obtained from <http://ecryptfs.sf.net>.
1093
1094 To compile this file system support as a module, choose M here: the
1095 module will be called ecryptfs.
1096
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097config HFS_FS
1098 tristate "Apple Macintosh file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001099 depends on BLOCK && EXPERIMENTAL
Lennert Buytenhek878129a2005-11-07 00:59:18 -08001100 select NLS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101 help
1102 If you say Y here, you will be able to mount Macintosh-formatted
1103 floppy disks and hard drive partitions with full read-write access.
1104 Please read <file:fs/hfs/HFS.txt> to learn about the available mount
1105 options.
1106
1107 To compile this file system support as a module, choose M here: the
1108 module will be called hfs.
1109
1110config HFSPLUS_FS
1111 tristate "Apple Extended HFS file system support"
David Howells93614012006-09-30 20:45:40 +02001112 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001113 select NLS
1114 select NLS_UTF8
1115 help
1116 If you say Y here, you will be able to mount extended format
1117 Macintosh-formatted hard drive partitions with full read-write access.
1118
1119 This file system is often called HFS+ and was introduced with
1120 MacOS 8. It includes all Mac specific filesystem data such as
1121 data forks and creator codes, but it also has several UNIX
1122 style features such as file ownership and permissions.
1123
1124config BEFS_FS
1125 tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001126 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001127 select NLS
1128 help
1129 The BeOS File System (BeFS) is the native file system of Be, Inc's
1130 BeOS. Notable features include support for arbitrary attributes
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +01001131 on files and directories, and database-like indices on selected
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132 attributes. (Also note that this driver doesn't make those features
1133 available at this time). It is a 64 bit filesystem, so it supports
Matt LaPlante44c09202006-10-03 22:34:14 +02001134 extremely large volumes and files.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001135
1136 If you use this filesystem, you should also say Y to at least one
1137 of the NLS (native language support) options below.
1138
1139 If you don't know what this is about, say N.
1140
1141 To compile this as a module, choose M here: the module will be
1142 called befs.
1143
1144config BEFS_DEBUG
1145 bool "Debug BeFS"
1146 depends on BEFS_FS
1147 help
1148 If you say Y here, you can use the 'debug' mount option to enable
1149 debugging output from the driver.
1150
1151config BFS_FS
1152 tristate "BFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001153 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154 help
1155 Boot File System (BFS) is a file system used under SCO UnixWare to
1156 allow the bootloader access to the kernel image and other important
1157 files during the boot process. It is usually mounted under /stand
1158 and corresponds to the slice marked as "STAND" in the UnixWare
1159 partition. You should say Y if you want to read or write the files
1160 on your /stand slice from within Linux. You then also need to say Y
1161 to "UnixWare slices support", below. More information about the BFS
1162 file system is contained in the file
1163 <file:Documentation/filesystems/bfs.txt>.
1164
1165 If you don't know what this is about, say N.
1166
1167 To compile this as a module, choose M here: the module will be called
1168 bfs. Note that the file system of your root partition (the one
1169 containing the directory /) cannot be compiled as a module.
1170
1171
1172
1173config EFS_FS
1174 tristate "EFS file system support (read only) (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001175 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176 help
1177 EFS is an older file system used for non-ISO9660 CD-ROMs and hard
1178 disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
1179 uses the XFS file system for hard disk partitions however).
1180
1181 This implementation only offers read-only access. If you don't know
1182 what all this is about, it's safe to say N. For more information
1183 about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
1184
1185 To compile the EFS file system support as a module, choose M here: the
1186 module will be called efs.
1187
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188config JFFS2_FS
1189 tristate "Journalling Flash File System v2 (JFFS2) support"
1190 select CRC32
1191 depends on MTD
1192 help
1193 JFFS2 is the second generation of the Journalling Flash File System
1194 for use on diskless embedded devices. It provides improved wear
1195 levelling, compression and support for hard links. You cannot use
1196 this on normal block devices, only on 'MTD' devices.
1197
1198 Further information on the design and implementation of JFFS2 is
1199 available at <http://sources.redhat.com/jffs2/>.
1200
1201config JFFS2_FS_DEBUG
1202 int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
1203 depends on JFFS2_FS
1204 default "0"
1205 help
1206 This controls the amount of debugging messages produced by the JFFS2
1207 code. Set it to zero for use in production systems. For evaluation,
1208 testing and debugging, it's advisable to set it to one. This will
1209 enable a few assertions and will print debugging messages at the
1210 KERN_DEBUG loglevel, where they won't normally be visible. Level 2
1211 is unlikely to be useful - it enables extra debugging in certain
1212 areas which at one point needed debugging, but when the bugs were
1213 located and fixed, the detailed messages were relegated to level 2.
1214
1215 If reporting bugs, please try to have available a full dump of the
1216 messages at debug level 1 while the misbehaviour was occurring.
1217
David Woodhouse2ba72cb2006-06-18 10:22:40 +01001218config JFFS2_FS_WRITEBUFFER
1219 bool "JFFS2 write-buffering support"
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001220 depends on JFFS2_FS
David Woodhouse2ba72cb2006-06-18 10:22:40 +01001221 default y
1222 help
1223 This enables the write-buffering support in JFFS2.
1224
1225 This functionality is required to support JFFS2 on the following
1226 types of flash devices:
1227 - NAND flash
1228 - NOR flash with transparent ECC
1229 - DataFlash
1230
David Woodhousea6bc4322007-07-11 14:23:54 +01001231config JFFS2_FS_WBUF_VERIFY
1232 bool "Verify JFFS2 write-buffer reads"
1233 depends on JFFS2_FS_WRITEBUFFER
1234 default n
1235 help
1236 This causes JFFS2 to read back every page written through the
1237 write-buffer, and check for errors.
1238
David Woodhouse2ba72cb2006-06-18 10:22:40 +01001239config JFFS2_SUMMARY
1240 bool "JFFS2 summary support (EXPERIMENTAL)"
1241 depends on JFFS2_FS && EXPERIMENTAL
1242 default n
1243 help
1244 This feature makes it possible to use summary information
1245 for faster filesystem mount.
1246
1247 The summary information can be inserted into a filesystem image
1248 by the utility 'sumtool'.
1249
1250 If unsure, say 'N'.
1251
1252config JFFS2_FS_XATTR
1253 bool "JFFS2 XATTR support (EXPERIMENTAL)"
KaiGai Kohei04510de2006-06-24 09:21:13 +09001254 depends on JFFS2_FS && EXPERIMENTAL
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001255 default n
1256 help
1257 Extended attributes are name:value pairs associated with inodes by
1258 the kernel or by users (see the attr(5) manual page, or visit
1259 <http://acl.bestbits.at/> for details).
1260
1261 If unsure, say N.
1262
1263config JFFS2_FS_POSIX_ACL
1264 bool "JFFS2 POSIX Access Control Lists"
1265 depends on JFFS2_FS_XATTR
1266 default y
1267 select FS_POSIX_ACL
1268 help
1269 Posix Access Control Lists (ACLs) support permissions for users and
1270 groups beyond the owner/group/world scheme.
1271
1272 To learn more about Access Control Lists, visit the Posix ACLs for
1273 Linux website <http://acl.bestbits.at/>.
1274
1275 If you don't know what Access Control Lists are, say N
1276
1277config JFFS2_FS_SECURITY
1278 bool "JFFS2 Security Labels"
1279 depends on JFFS2_FS_XATTR
1280 default y
1281 help
1282 Security labels support alternative access control models
1283 implemented by security modules like SELinux. This option
1284 enables an extended attribute handler for file security
1285 labels in the jffs2 filesystem.
1286
1287 If you are not using a security module that requires using
1288 extended attributes for file security labels, say N.
1289
Linus Torvalds1da177e2005-04-16 15:20:36 -07001290config JFFS2_COMPRESSION_OPTIONS
1291 bool "Advanced compression options for JFFS2"
1292 depends on JFFS2_FS
1293 default n
1294 help
1295 Enabling this option allows you to explicitly choose which
1296 compression modules, if any, are enabled in JFFS2. Removing
1297 compressors and mean you cannot read existing file systems,
1298 and enabling experimental compressors can mean that you
1299 write a file system which cannot be read by a standard kernel.
1300
1301 If unsure, you should _definitely_ say 'N'.
1302
1303config JFFS2_ZLIB
1304 bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS
1305 select ZLIB_INFLATE
1306 select ZLIB_DEFLATE
1307 depends on JFFS2_FS
1308 default y
David Woodhouseef53cb02007-07-10 10:01:22 +01001309 help
1310 Zlib is designed to be a free, general-purpose, legally unencumbered,
1311 lossless data-compression library for use on virtually any computer
1312 hardware and operating system. See <http://www.gzip.org/zlib/> for
1313 further information.
Thomas Gleixner182ec4e2005-11-07 11:16:07 +00001314
David Woodhouseef53cb02007-07-10 10:01:22 +01001315 Say 'Y' if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316
1317config JFFS2_RTIME
1318 bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
1319 depends on JFFS2_FS
1320 default y
David Woodhouseef53cb02007-07-10 10:01:22 +01001321 help
1322 Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323
1324config JFFS2_RUBIN
1325 bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
1326 depends on JFFS2_FS
1327 default n
David Woodhouseef53cb02007-07-10 10:01:22 +01001328 help
1329 RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330
1331choice
David Woodhouseef53cb02007-07-10 10:01:22 +01001332 prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
1333 default JFFS2_CMODE_PRIORITY
1334 depends on JFFS2_FS
1335 help
1336 You can set here the default compression mode of JFFS2 from
1337 the available compression modes. Don't touch if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338
1339config JFFS2_CMODE_NONE
David Woodhouseef53cb02007-07-10 10:01:22 +01001340 bool "no compression"
1341 help
1342 Uses no compression.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343
1344config JFFS2_CMODE_PRIORITY
David Woodhouseef53cb02007-07-10 10:01:22 +01001345 bool "priority"
1346 help
1347 Tries the compressors in a predefined order and chooses the first
1348 successful one.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349
1350config JFFS2_CMODE_SIZE
David Woodhouseef53cb02007-07-10 10:01:22 +01001351 bool "size (EXPERIMENTAL)"
1352 help
1353 Tries all compressors and chooses the one which has the smallest
1354 result.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355
1356endchoice
1357
1358config CRAMFS
1359 tristate "Compressed ROM file system support (cramfs)"
David Howells93614012006-09-30 20:45:40 +02001360 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361 select ZLIB_INFLATE
1362 help
1363 Saying Y here includes support for CramFs (Compressed ROM File
1364 System). CramFs is designed to be a simple, small, and compressed
1365 file system for ROM based embedded systems. CramFs is read-only,
1366 limited to 256MB file systems (with 16MB files), and doesn't support
1367 16/32 bits uid/gid, hard links and timestamps.
1368
1369 See <file:Documentation/filesystems/cramfs.txt> and
1370 <file:fs/cramfs/README> for further information.
1371
1372 To compile this as a module, choose M here: the module will be called
1373 cramfs. Note that the root file system (the one containing the
1374 directory /) cannot be compiled as a module.
1375
1376 If unsure, say N.
1377
1378config VXFS_FS
1379 tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
David Howells93614012006-09-30 20:45:40 +02001380 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 help
1382 FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
1383 file system format. VERITAS VxFS(TM) is the standard file system
1384 of SCO UnixWare (and possibly others) and optionally available
1385 for Sunsoft Solaris, HP-UX and many other operating systems.
1386 Currently only readonly access is supported.
1387
1388 NOTE: the file system type as used by mount(1), mount(2) and
1389 fstab(5) is 'vxfs' as it describes the file system format, not
1390 the actual driver.
1391
1392 To compile this as a module, choose M here: the module will be
1393 called freevxfs. If unsure, say N.
1394
1395
1396config HPFS_FS
1397 tristate "OS/2 HPFS file system support"
David Howells93614012006-09-30 20:45:40 +02001398 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399 help
1400 OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
1401 is the file system used for organizing files on OS/2 hard disk
1402 partitions. Say Y if you want to be able to read files from and
1403 write files to an OS/2 HPFS partition on your hard drive. OS/2
1404 floppies however are in regular MSDOS format, so you don't need this
1405 option in order to be able to read them. Read
1406 <file:Documentation/filesystems/hpfs.txt>.
1407
1408 To compile this file system support as a module, choose M here: the
1409 module will be called hpfs. If unsure, say N.
1410
1411
1412
1413config QNX4FS_FS
1414 tristate "QNX4 file system support (read only)"
David Howells93614012006-09-30 20:45:40 +02001415 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416 help
1417 This is the file system used by the real-time operating systems
1418 QNX 4 and QNX 6 (the latter is also called QNX RTP).
1419 Further information is available at <http://www.qnx.com/>.
1420 Say Y if you intend to mount QNX hard disks or floppies.
1421 Unless you say Y to "QNX4FS read-write support" below, you will
1422 only be able to read these file systems.
1423
1424 To compile this file system support as a module, choose M here: the
1425 module will be called qnx4.
1426
1427 If you don't know whether you need it, then you don't need it:
1428 answer N.
1429
1430config QNX4FS_RW
1431 bool "QNX4FS write support (DANGEROUS)"
1432 depends on QNX4FS_FS && EXPERIMENTAL && BROKEN
1433 help
1434 Say Y if you want to test write support for QNX4 file systems.
1435
1436 It's currently broken, so for now:
1437 answer N.
1438
1439
1440
1441config SYSV_FS
1442 tristate "System V/Xenix/V7/Coherent file system support"
David Howells93614012006-09-30 20:45:40 +02001443 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444 help
1445 SCO, Xenix and Coherent are commercial Unix systems for Intel
1446 machines, and Version 7 was used on the DEC PDP-11. Saying Y
1447 here would allow you to read from their floppies and hard disk
1448 partitions.
1449
1450 If you have floppies or hard disk partitions like that, it is likely
1451 that they contain binaries from those other Unix systems; in order
Matt LaPlantecab00892006-10-03 22:36:44 +02001452 to run these binaries, you will want to install linux-abi which is
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453 a set of kernel modules that lets you run SCO, Xenix, Wyse,
1454 UnixWare, Dell Unix and System V programs under Linux. It is
1455 available via FTP (user: ftp) from
1456 <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
1457 NOTE: that will work only for binaries from Intel-based systems;
1458 PDP ones will have to wait until somebody ports Linux to -11 ;-)
1459
1460 If you only intend to mount files from some other Unix over the
1461 network using NFS, you don't need the System V file system support
1462 (but you need NFS file system support obviously).
1463
1464 Note that this option is generally not needed for floppies, since a
1465 good portable way to transport files and directories between unixes
1466 (and even other operating systems) is given by the tar program ("man
1467 tar" or preferably "info tar"). Note also that this option has
1468 nothing whatsoever to do with the option "System V IPC". Read about
1469 the System V file system in
1470 <file:Documentation/filesystems/sysv-fs.txt>.
1471 Saying Y here will enlarge your kernel by about 27 KB.
1472
1473 To compile this as a module, choose M here: the module will be called
1474 sysv.
1475
1476 If you haven't heard about all of this before, it's safe to say N.
1477
1478
1479
1480config UFS_FS
1481 tristate "UFS file system support (read only)"
David Howells93614012006-09-30 20:45:40 +02001482 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001483 help
1484 BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
1485 OpenBSD and NeXTstep) use a file system called UFS. Some System V
1486 Unixes can create and mount hard disk partitions and diskettes using
1487 this file system as well. Saying Y here will allow you to read from
1488 these partitions; if you also want to write to them, say Y to the
1489 experimental "UFS file system write support", below. Please read the
1490 file <file:Documentation/filesystems/ufs.txt> for more information.
1491
1492 The recently released UFS2 variant (used in FreeBSD 5.x) is
1493 READ-ONLY supported.
1494
1495 If you only intend to mount files from some other Unix over the
1496 network using NFS, you don't need the UFS file system support (but
1497 you need NFS file system support obviously).
1498
1499 Note that this option is generally not needed for floppies, since a
1500 good portable way to transport files and directories between unixes
1501 (and even other operating systems) is given by the tar program ("man
1502 tar" or preferably "info tar").
1503
1504 When accessing NeXTstep files, you may need to convert them from the
1505 NeXT character set to the Latin1 character set; use the program
1506 recode ("info recode") for this purpose.
1507
1508 To compile the UFS file system support as a module, choose M here: the
1509 module will be called ufs.
1510
1511 If you haven't heard about all of this before, it's safe to say N.
1512
1513config UFS_FS_WRITE
1514 bool "UFS file system write support (DANGEROUS)"
Evgeniy Dushistov5afb3142006-06-25 05:47:24 -07001515 depends on UFS_FS && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001516 help
1517 Say Y here if you want to try writing to UFS partitions. This is
1518 experimental, so you should back up your UFS partitions beforehand.
1519
Evgeniy Dushistovabf5d152006-06-25 05:47:24 -07001520config UFS_DEBUG
1521 bool "UFS debugging"
1522 depends on UFS_FS
1523 help
1524 If you are experiencing any problems with the UFS filesystem, say
1525 Y here. This will result in _many_ additional debugging messages to be
1526 written to the system log.
1527
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528endmenu
1529
1530menu "Network File Systems"
1531 depends on NET
1532
1533config NFS_FS
1534 tristate "NFS file system support"
1535 depends on INET
1536 select LOCKD
1537 select SUNRPC
Andreas Gruenbacherb7fa0552005-06-22 17:16:27 +00001538 select NFS_ACL_SUPPORT if NFS_V3_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001539 help
1540 If you are connected to some other (usually local) Unix computer
1541 (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
1542 on that computer (the NFS server) using the Network File Sharing
1543 protocol, say Y. "Mounting files" means that the client can access
1544 the files with usual UNIX commands as if they were sitting on the
1545 client's hard disk. For this to work, the server must run the
1546 programs nfsd and mountd (but does not need to have NFS file system
1547 support enabled in its kernel). NFS is explained in the Network
1548 Administrator's Guide, available from
1549 <http://www.tldp.org/docs.html#guide>, on its man page: "man
1550 nfs", and in the NFS-HOWTO.
1551
1552 A superior but less widely used alternative to NFS is provided by
1553 the Coda file system; see "Coda file system support" below.
1554
1555 If you say Y here, you should have said Y to TCP/IP networking also.
1556 This option would enlarge your kernel by about 27 KB.
1557
1558 To compile this file system support as a module, choose M here: the
1559 module will be called nfs.
1560
1561 If you are configuring a diskless machine which will mount its root
1562 file system over NFS at boot time, say Y here and to "Kernel
1563 level IP autoconfiguration" above and to "Root file system on NFS"
1564 below. You cannot compile this driver as a module in this case.
1565 There are two packages designed for booting diskless machines over
1566 the net: netboot, available from
1567 <http://ftp1.sourceforge.net/netboot/>, and Etherboot,
1568 available from <http://ftp1.sourceforge.net/etherboot/>.
1569
1570 If you don't know what all this is about, say N.
1571
1572config NFS_V3
1573 bool "Provide NFSv3 client support"
1574 depends on NFS_FS
1575 help
1576 Say Y here if you want your NFS client to be able to speak version
1577 3 of the NFS protocol.
1578
1579 If unsure, say Y.
1580
Andreas Gruenbacherb7fa0552005-06-22 17:16:27 +00001581config NFS_V3_ACL
1582 bool "Provide client support for the NFSv3 ACL protocol extension"
1583 depends on NFS_V3
1584 help
1585 Implement the NFSv3 ACL protocol extension for manipulating POSIX
1586 Access Control Lists. The server should also be compiled with
1587 the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option.
1588
1589 If unsure, say N.
1590
Linus Torvalds1da177e2005-04-16 15:20:36 -07001591config NFS_V4
1592 bool "Provide NFSv4 client support (EXPERIMENTAL)"
1593 depends on NFS_FS && EXPERIMENTAL
1594 select RPCSEC_GSS_KRB5
1595 help
1596 Say Y here if you want your NFS client to be able to speak the newer
1597 version 4 of the NFS protocol.
1598
1599 Note: Requires auxiliary userspace daemons which may be found on
1600 http://www.citi.umich.edu/projects/nfsv4/
1601
1602 If unsure, say N.
1603
1604config NFS_DIRECTIO
Chuck Lever026ed5c2006-09-20 14:33:07 -04001605 bool "Allow direct I/O on NFS files"
1606 depends on NFS_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607 help
1608 This option enables applications to perform uncached I/O on files
1609 in NFS file systems using the O_DIRECT open() flag. When O_DIRECT
1610 is set for a file, its data is not cached in the system's page
1611 cache. Data is moved to and from user-level application buffers
1612 directly. Unlike local disk-based file systems, NFS O_DIRECT has
1613 no alignment restrictions.
1614
1615 Unless your program is designed to use O_DIRECT properly, you are
1616 much better off allowing the NFS client to manage data caching for
1617 you. Misusing O_DIRECT can cause poor server performance or network
1618 storms. This kernel build option defaults OFF to avoid exposing
1619 system administrators unwittingly to a potentially hazardous
1620 feature.
1621
1622 For more details on NFS O_DIRECT, see fs/nfs/direct.c.
1623
1624 If unsure, say N. This reduces the size of the NFS client, and
1625 causes open() to return EINVAL if a file residing in NFS is
1626 opened with the O_DIRECT flag.
1627
1628config NFSD
1629 tristate "NFS server support"
1630 depends on INET
1631 select LOCKD
1632 select SUNRPC
1633 select EXPORTFS
Herbert Xuf05e15b2006-06-26 00:25:39 -07001634 select NFSD_V2_ACL if NFSD_V3_ACL
1635 select NFS_ACL_SUPPORT if NFSD_V2_ACL
1636 select NFSD_TCP if NFSD_V4
1637 select CRYPTO_MD5 if NFSD_V4
1638 select CRYPTO if NFSD_V4
1639 select FS_POSIX_ACL if NFSD_V4
Linus Torvalds1da177e2005-04-16 15:20:36 -07001640 help
1641 If you want your Linux box to act as an NFS *server*, so that other
1642 computers on your local network which support NFS can access certain
1643 directories on your box transparently, you have two options: you can
1644 use the self-contained user space program nfsd, in which case you
1645 should say N here, or you can say Y and use the kernel based NFS
1646 server. The advantage of the kernel based solution is that it is
1647 faster.
1648
1649 In either case, you will need support software; the respective
1650 locations are given in the file <file:Documentation/Changes> in the
1651 NFS section.
1652
1653 If you say Y here, you will get support for version 2 of the NFS
1654 protocol (NFSv2). If you also want NFSv3, say Y to the next question
1655 as well.
1656
1657 Please read the NFS-HOWTO, available from
1658 <http://www.tldp.org/docs.html#howto>.
1659
1660 To compile the NFS server support as a module, choose M here: the
1661 module will be called nfsd. If unsure, say N.
1662
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001663config NFSD_V2_ACL
1664 bool
1665 depends on NFSD
1666
Linus Torvalds1da177e2005-04-16 15:20:36 -07001667config NFSD_V3
1668 bool "Provide NFSv3 server support"
1669 depends on NFSD
1670 help
1671 If you would like to include the NFSv3 server as well as the NFSv2
1672 server, say Y here. If unsure, say Y.
1673
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001674config NFSD_V3_ACL
1675 bool "Provide server support for the NFSv3 ACL protocol extension"
1676 depends on NFSD_V3
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001677 help
1678 Implement the NFSv3 ACL protocol extension for manipulating POSIX
1679 Access Control Lists on exported file systems. NFS clients should
1680 be compiled with the NFSv3 ACL protocol extension; see the
1681 CONFIG_NFS_V3_ACL option. If unsure, say N.
1682
Linus Torvalds1da177e2005-04-16 15:20:36 -07001683config NFSD_V4
1684 bool "Provide NFSv4 server support (EXPERIMENTAL)"
1685 depends on NFSD_V3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001686 help
1687 If you would like to include the NFSv4 server as well as the NFSv2
1688 and NFSv3 servers, say Y here. This feature is experimental, and
1689 should only be used if you are interested in helping to test NFSv4.
1690 If unsure, say N.
1691
1692config NFSD_TCP
1693 bool "Provide NFS server over TCP support"
1694 depends on NFSD
1695 default y
1696 help
1697 If you want your NFS server to support TCP connections, say Y here.
1698 TCP connections usually perform better than the default UDP when
1699 the network is lossy or congested. If unsure, say Y.
1700
1701config ROOT_NFS
1702 bool "Root file system on NFS"
1703 depends on NFS_FS=y && IP_PNP
1704 help
1705 If you want your Linux box to mount its whole root file system (the
1706 one containing the directory /) from some other computer over the
1707 net via NFS (presumably because your box doesn't have a hard disk),
1708 say Y. Read <file:Documentation/nfsroot.txt> for details. It is
1709 likely that in this case, you also want to say Y to "Kernel level IP
1710 autoconfiguration" so that your box can discover its network address
1711 at boot time.
1712
1713 Most people say N here.
1714
1715config LOCKD
1716 tristate
1717
1718config LOCKD_V4
1719 bool
1720 depends on NFSD_V3 || NFS_V3
1721 default y
1722
1723config EXPORTFS
1724 tristate
1725
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001726config NFS_ACL_SUPPORT
1727 tristate
1728 select FS_POSIX_ACL
1729
1730config NFS_COMMON
1731 bool
1732 depends on NFSD || NFS_FS
1733 default y
1734
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735config SUNRPC
1736 tristate
1737
1738config SUNRPC_GSS
1739 tristate
1740
Chuck Lever00a6e7b2007-03-29 16:48:33 -04001741config SUNRPC_BIND34
1742 bool "Support for rpcbind versions 3 & 4 (EXPERIMENTAL)"
1743 depends on SUNRPC && EXPERIMENTAL
1744 help
1745 Provides kernel support for querying rpcbind servers via versions 3
1746 and 4 of the rpcbind protocol. The kernel automatically falls back
1747 to version 2 if a remote rpcbind service does not support versions
1748 3 or 4.
1749
1750 If unsure, say N to get traditional behavior (version 2 rpcbind
1751 requests only).
1752
Linus Torvalds1da177e2005-04-16 15:20:36 -07001753config RPCSEC_GSS_KRB5
1754 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
1755 depends on SUNRPC && EXPERIMENTAL
1756 select SUNRPC_GSS
1757 select CRYPTO
1758 select CRYPTO_MD5
1759 select CRYPTO_DES
Patrick McHardybcbaecb2006-10-25 16:49:36 +10001760 select CRYPTO_CBC
Linus Torvalds1da177e2005-04-16 15:20:36 -07001761 help
1762 Provides for secure RPC calls by means of a gss-api
1763 mechanism based on Kerberos V5. This is required for
1764 NFSv4.
1765
1766 Note: Requires an auxiliary userspace daemon which may be found on
1767 http://www.citi.umich.edu/projects/nfsv4/
1768
1769 If unsure, say N.
1770
1771config RPCSEC_GSS_SPKM3
1772 tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
1773 depends on SUNRPC && EXPERIMENTAL
1774 select SUNRPC_GSS
1775 select CRYPTO
1776 select CRYPTO_MD5
1777 select CRYPTO_DES
J. Bruce Fieldsdf6db302006-03-20 23:25:10 -05001778 select CRYPTO_CAST5
Patrick McHardybcbaecb2006-10-25 16:49:36 +10001779 select CRYPTO_CBC
Linus Torvalds1da177e2005-04-16 15:20:36 -07001780 help
1781 Provides for secure RPC calls by means of a gss-api
1782 mechanism based on the SPKM3 public-key mechanism.
1783
1784 Note: Requires an auxiliary userspace daemon which may be found on
1785 http://www.citi.umich.edu/projects/nfsv4/
1786
1787 If unsure, say N.
1788
1789config SMB_FS
1790 tristate "SMB file system support (to mount Windows shares etc.)"
1791 depends on INET
1792 select NLS
1793 help
1794 SMB (Server Message Block) is the protocol Windows for Workgroups
1795 (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
1796 files and printers over local networks. Saying Y here allows you to
1797 mount their file systems (often called "shares" in this context) and
1798 access them just like any other Unix directory. Currently, this
1799 works only if the Windows machines use TCP/IP as the underlying
1800 transport protocol, and not NetBEUI. For details, read
1801 <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
1802 available from <http://www.tldp.org/docs.html#howto>.
1803
1804 Note: if you just want your box to act as an SMB *server* and make
1805 files and printing services available to Windows clients (which need
1806 to have a TCP/IP stack), you don't need to say Y here; you can use
1807 the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
1808 for that.
1809
1810 General information about how to connect Linux, Windows machines and
1811 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1812
1813 To compile the SMB support as a module, choose M here: the module will
1814 be called smbfs. Most people say N, however.
1815
1816config SMB_NLS_DEFAULT
1817 bool "Use a default NLS"
1818 depends on SMB_FS
1819 help
1820 Enabling this will make smbfs use nls translations by default. You
1821 need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
1822 settings and you need to give the default nls for the SMB server as
1823 CONFIG_SMB_NLS_REMOTE.
1824
1825 The nls settings can be changed at mount time, if your smbmount
1826 supports that, using the codepage and iocharset parameters.
1827
1828 smbmount from samba 2.2.0 or later supports this.
1829
1830config SMB_NLS_REMOTE
1831 string "Default Remote NLS Option"
1832 depends on SMB_NLS_DEFAULT
1833 default "cp437"
1834 help
1835 This setting allows you to specify a default value for which
1836 codepage the server uses. If this field is left blank no
1837 translations will be done by default. The local codepage/charset
1838 default to CONFIG_NLS_DEFAULT.
1839
1840 The nls settings can be changed at mount time, if your smbmount
1841 supports that, using the codepage and iocharset parameters.
1842
1843 smbmount from samba 2.2.0 or later supports this.
1844
1845config CIFS
1846 tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)"
1847 depends on INET
1848 select NLS
1849 help
1850 This is the client VFS module for the Common Internet File System
1851 (CIFS) protocol which is the successor to the Server Message Block
1852 (SMB) protocol, the native file sharing mechanism for most early
1853 PC operating systems. The CIFS protocol is fully supported by
1854 file servers such as Windows 2000 (including Windows 2003, NT 4
1855 and Windows XP) as well by Samba (which provides excellent CIFS
Steve Frenchec58ef02005-11-04 09:44:33 -08001856 server support for Linux and many other operating systems). Limited
Steve French8af18972007-02-14 04:42:51 +00001857 support for OS/2 and Windows ME and similar servers is provided as well.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001858
1859 The intent of the cifs module is to provide an advanced
Steve French8af18972007-02-14 04:42:51 +00001860 network file system client for mounting to CIFS compliant servers,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861 including support for dfs (hierarchical name space), secure per-user
1862 session establishment, safe distributed caching (oplock), optional
Steve French8af18972007-02-14 04:42:51 +00001863 packet signing, Unicode and other internationalization improvements.
1864 If you need to mount to Samba or Windows from this machine, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001865
1866config CIFS_STATS
1867 bool "CIFS statistics"
1868 depends on CIFS
1869 help
1870 Enabling this option will cause statistics for each server share
1871 mounted by the cifs client to be displayed in /proc/fs/cifs/Stats
1872
Steve Frenchec58ef02005-11-04 09:44:33 -08001873config CIFS_STATS2
Steve French39798772006-05-31 22:40:51 +00001874 bool "Extended statistics"
Steve Frenchec58ef02005-11-04 09:44:33 -08001875 depends on CIFS_STATS
1876 help
1877 Enabling this option will allow more detailed statistics on SMB
1878 request timing to be displayed in /proc/fs/cifs/DebugData and also
1879 allow optional logging of slow responses to dmesg (depending on the
1880 value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details).
1881 These additional statistics may have a minor effect on performance
1882 and memory utilization.
1883
1884 Unless you are a developer or are doing network performance analysis
1885 or tuning, say N.
1886
Steve French39798772006-05-31 22:40:51 +00001887config CIFS_WEAK_PW_HASH
1888 bool "Support legacy servers which use weaker LANMAN security"
1889 depends on CIFS
1890 help
1891 Modern CIFS servers including Samba and most Windows versions
1892 (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos)
1893 security mechanisms. These hash the password more securely
1894 than the mechanisms used in the older LANMAN version of the
1895 SMB protocol needed to establish sessions with old SMB servers.
1896
1897 Enabling this option allows the cifs module to mount to older
1898 LANMAN based servers such as OS/2 and Windows 95, but such
1899 mounts may be less secure than mounts using NTLM or more recent
1900 security mechanisms if you are on a public network. Unless you
1901 have a need to access old SMB servers (and are on a private
1902 network) you probably want to say N. Even if this support
1903 is enabled in the kernel build, they will not be used
1904 automatically. At runtime LANMAN mounts are disabled but
1905 can be set to required (or optional) either in
1906 /proc/fs/cifs (see fs/cifs/README for more detail) or via an
1907 option on the mount command. This support is disabled by
1908 default in order to reduce the possibility of a downgrade
1909 attack.
1910
1911 If unsure, say N.
1912
Linus Torvalds1da177e2005-04-16 15:20:36 -07001913config CIFS_XATTR
Steve Frenchec58ef02005-11-04 09:44:33 -08001914 bool "CIFS extended attributes"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001915 depends on CIFS
1916 help
1917 Extended attributes are name:value pairs associated with inodes by
1918 the kernel or by users (see the attr(5) manual page, or visit
1919 <http://acl.bestbits.at/> for details). CIFS maps the name of
1920 extended attributes beginning with the user namespace prefix
1921 to SMB/CIFS EAs. EAs are stored on Windows servers without the
1922 user namespace prefix, but their names are seen by Linux cifs clients
1923 prefaced by the user namespace prefix. The system namespace
1924 (used by some filesystems to store ACLs) is not supported at
1925 this time.
Steve Frenchec58ef02005-11-04 09:44:33 -08001926
Linus Torvalds1da177e2005-04-16 15:20:36 -07001927 If unsure, say N.
1928
1929config CIFS_POSIX
Steve Frenchec58ef02005-11-04 09:44:33 -08001930 bool "CIFS POSIX Extensions"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001931 depends on CIFS_XATTR
1932 help
1933 Enabling this option will cause the cifs client to attempt to
1934 negotiate a newer dialect with servers, such as Samba 3.0.5
1935 or later, that optionally can handle more POSIX like (rather
1936 than Windows like) file behavior. It also enables
1937 support for POSIX ACLs (getfacl and setfacl) to servers
1938 (such as Samba 3.10 and later) which can negotiate
1939 CIFS POSIX ACL support. If unsure, say N.
1940
Steve French39798772006-05-31 22:40:51 +00001941config CIFS_DEBUG2
Steve French3856a9d2006-06-01 19:38:46 +00001942 bool "Enable additional CIFS debugging routines"
Steve French8ba10ab2006-07-08 02:17:40 +00001943 depends on CIFS
Steve French39798772006-05-31 22:40:51 +00001944 help
1945 Enabling this option adds a few more debugging routines
1946 to the cifs code which slightly increases the size of
1947 the cifs module and can cause additional logging of debug
1948 messages in some error paths, slowing performance. This
1949 option can be turned off unless you are debugging
1950 cifs problems. If unsure, say N.
1951
Linus Torvalds1da177e2005-04-16 15:20:36 -07001952config CIFS_EXPERIMENTAL
1953 bool "CIFS Experimental Features (EXPERIMENTAL)"
Steve Frenchcb9dbff2005-11-02 11:37:15 -08001954 depends on CIFS && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001955 help
Steve Frenchec58ef02005-11-04 09:44:33 -08001956 Enables cifs features under testing. These features are
Steve French8af18972007-02-14 04:42:51 +00001957 experimental and currently include DFS support and directory
1958 change notification ie fcntl(F_DNOTIFY), as well as the upcall
1959 mechanism which will be used for Kerberos session negotiation
1960 and uid remapping. Some of these features also may depend on
1961 setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental
1962 (which is disabled by default). See the file fs/cifs/README
1963 for more details. If unsure, say N.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001964
Steve Frencha2653eb2005-11-10 15:33:38 -08001965config CIFS_UPCALL
Steve French39798772006-05-31 22:40:51 +00001966 bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
Steve Frencha2653eb2005-11-10 15:33:38 -08001967 depends on CIFS_EXPERIMENTAL
Andrew Morton230a0392006-10-12 15:07:55 +00001968 depends on CONNECTOR
Steve Frencha2653eb2005-11-10 15:33:38 -08001969 help
1970 Enables an upcall mechanism for CIFS which will be used to contact
1971 userspace helper utilities to provide SPNEGO packaged Kerberos
1972 tickets which are needed to mount to certain secure servers
Steve French1b397f42005-11-10 19:36:39 -08001973 (for which more secure Kerberos authentication is required). If
1974 unsure, say N.
Steve Frencha2653eb2005-11-10 15:33:38 -08001975
Linus Torvalds1da177e2005-04-16 15:20:36 -07001976config NCP_FS
1977 tristate "NCP file system support (to mount NetWare volumes)"
1978 depends on IPX!=n || INET
1979 help
1980 NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
1981 used by Novell NetWare clients to talk to file servers. It is to
1982 IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you
1983 to mount NetWare file server volumes and to access them just like
1984 any other Unix directory. For details, please read the file
1985 <file:Documentation/filesystems/ncpfs.txt> in the kernel source and
1986 the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
1987
1988 You do not have to say Y here if you want your Linux box to act as a
1989 file *server* for Novell NetWare clients.
1990
1991 General information about how to connect Linux, Windows machines and
1992 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1993
1994 To compile this as a module, choose M here: the module will be called
1995 ncpfs. Say N unless you are connected to a Novell network.
1996
1997source "fs/ncpfs/Kconfig"
1998
1999config CODA_FS
2000 tristate "Coda file system support (advanced network fs)"
2001 depends on INET
2002 help
2003 Coda is an advanced network file system, similar to NFS in that it
2004 enables you to mount file systems of a remote server and access them
2005 with regular Unix commands as if they were sitting on your hard
2006 disk. Coda has several advantages over NFS: support for
2007 disconnected operation (e.g. for laptops), read/write server
2008 replication, security model for authentication and encryption,
2009 persistent client caches and write back caching.
2010
2011 If you say Y here, your Linux box will be able to act as a Coda
2012 *client*. You will need user level code as well, both for the
2013 client and server. Servers are currently user level, i.e. they need
2014 no kernel support. Please read
2015 <file:Documentation/filesystems/coda.txt> and check out the Coda
2016 home page <http://www.coda.cs.cmu.edu/>.
2017
2018 To compile the coda client support as a module, choose M here: the
2019 module will be called coda.
2020
2021config CODA_FS_OLD_API
2022 bool "Use 96-bit Coda file identifiers"
2023 depends on CODA_FS
2024 help
2025 A new kernel-userspace API had to be introduced for Coda v6.0
2026 to support larger 128-bit file identifiers as needed by the
2027 new realms implementation.
2028
2029 However this new API is not backward compatible with older
2030 clients. If you really need to run the old Coda userspace
2031 cache manager then say Y.
2032
2033 For most cases you probably want to say N.
2034
2035config AFS_FS
David Howells64aaa4f2006-11-16 01:19:27 -08002036 tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002037 depends on INET && EXPERIMENTAL
David Howells08e0e7c2007-04-26 15:55:03 -07002038 select AF_RXRPC
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039 help
2040 If you say Y here, you will get an experimental Andrew File System
2041 driver. It currently only supports unsecured read-only AFS access.
2042
Matt LaPlantecc2e2762006-10-03 22:22:29 +02002043 See <file:Documentation/filesystems/afs.txt> for more information.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002044
2045 If unsure, say N.
2046
David Howells08e0e7c2007-04-26 15:55:03 -07002047config AFS_DEBUG
2048 bool "AFS dynamic debugging"
2049 depends on AFS_FS
2050 help
2051 Say Y here to make runtime controllable debugging messages appear.
2052
2053 See <file:Documentation/filesystems/afs.txt> for more information.
2054
2055 If unsure, say N.
2056
Eric Van Hensbergen93fa58c2005-09-09 13:04:18 -07002057config 9P_FS
2058 tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
2059 depends on INET && EXPERIMENTAL
2060 help
2061 If you say Y here, you will get experimental support for
2062 Plan 9 resource sharing via the 9P2000 protocol.
2063
2064 See <http://v9fs.sf.net> for more information.
2065
2066 If unsure, say N.
2067
Linus Torvalds1da177e2005-04-16 15:20:36 -07002068endmenu
2069
David Howells93614012006-09-30 20:45:40 +02002070if BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002071menu "Partition Types"
2072
2073source "fs/partitions/Kconfig"
2074
2075endmenu
David Howells93614012006-09-30 20:45:40 +02002076endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077
2078source "fs/nls/Kconfig"
David Teiglande7fd4172006-01-18 09:30:29 +00002079source "fs/dlm/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002080
2081endmenu
2082