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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"
317 depends on REISERFS_FS
318 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
677config ZISOFS_FS
678# for fs/nls/Config.in
679 tristate
680 depends on ZISOFS
681 default ISO9660_FS
682
683config UDF_FS
684 tristate "UDF file system support"
685 help
686 This is the new file system used on some CD-ROMs and DVDs. Say Y if
687 you intend to mount DVD discs or CDRW's written in packet mode, or
688 if written to by other UDF utilities, such as DirectCD.
689 Please read <file:Documentation/filesystems/udf.txt>.
690
691 To compile this file system support as a module, choose M here: the
692 module will be called udf.
693
694 If unsure, say N.
695
696config UDF_NLS
697 bool
698 default y
699 depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
700
701endmenu
David Howells93614012006-09-30 20:45:40 +0200702endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703
David Howells93614012006-09-30 20:45:40 +0200704if BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705menu "DOS/FAT/NT Filesystems"
706
707config FAT_FS
708 tristate
709 select NLS
710 help
711 If you want to use one of the FAT-based file systems (the MS-DOS and
712 VFAT (Windows 95) file systems), then you must say Y or M here
713 to include FAT support. You will then be able to mount partitions or
714 diskettes with FAT-based file systems and transparently access the
715 files on them, i.e. MSDOS files will look and behave just like all
716 other Unix files.
717
718 This FAT support is not a file system in itself, it only provides
719 the foundation for the other file systems. You will have to say Y or
720 M to at least one of "MSDOS fs support" or "VFAT fs support" in
721 order to make use of it.
722
723 Another way to read and write MSDOS floppies and hard drive
724 partitions from within Linux (but not transparently) is with the
725 mtools ("man mtools") program suite. You don't need to say Y here in
726 order to do that.
727
728 If you need to move large files on floppies between a DOS and a
729 Linux box, say Y here, mount the floppy under Linux with an MSDOS
730 file system and use GNU tar's M option. GNU tar is a program
731 available for Unix and DOS ("man tar" or "info tar").
732
733 It is now also becoming possible to read and write compressed FAT
734 file systems; read <file:Documentation/filesystems/fat_cvf.txt> for
735 details.
736
737 The FAT support will enlarge your kernel by about 37 KB. If unsure,
738 say Y.
739
740 To compile this as a module, choose M here: the module will be called
741 fat. Note that if you compile the FAT support as a module, you
742 cannot compile any of the FAT-based file systems into the kernel
743 -- they will have to be modules as well.
744
745config MSDOS_FS
746 tristate "MSDOS fs support"
747 select FAT_FS
748 help
749 This allows you to mount MSDOS partitions of your hard drive (unless
750 they are compressed; to access compressed MSDOS partitions under
751 Linux, you can either use the DOS emulator DOSEMU, described in the
752 DOSEMU-HOWTO, available from
753 <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
754 <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
755 intend to use dosemu with a non-compressed MSDOS partition, say Y
756 here) and MSDOS floppies. This means that file access becomes
757 transparent, i.e. the MSDOS files look and behave just like all
758 other Unix files.
759
760 If you have Windows 95 or Windows NT installed on your MSDOS
761 partitions, you should use the VFAT file system (say Y to "VFAT fs
762 support" below), or you will not be able to see the long filenames
763 generated by Windows 95 / Windows NT.
764
765 This option will enlarge your kernel by about 7 KB. If unsure,
766 answer Y. This will only work if you said Y to "DOS FAT fs support"
767 as well. To compile this as a module, choose M here: the module will
768 be called msdos.
769
770config VFAT_FS
771 tristate "VFAT (Windows-95) fs support"
772 select FAT_FS
773 help
774 This option provides support for normal Windows file systems with
775 long filenames. That includes non-compressed FAT-based file systems
776 used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
777 programs from the mtools package.
778
779 The VFAT support enlarges your kernel by about 10 KB and it only
780 works if you said Y to the "DOS FAT fs support" above. Please read
781 the file <file:Documentation/filesystems/vfat.txt> for details. If
782 unsure, say Y.
783
784 To compile this as a module, choose M here: the module will be called
785 vfat.
786
787config FAT_DEFAULT_CODEPAGE
788 int "Default codepage for FAT"
789 depends on MSDOS_FS || VFAT_FS
790 default 437
791 help
792 This option should be set to the codepage of your FAT filesystems.
793 It can be overridden with the "codepage" mount option.
794 See <file:Documentation/filesystems/vfat.txt> for more information.
795
796config FAT_DEFAULT_IOCHARSET
797 string "Default iocharset for FAT"
798 depends on VFAT_FS
799 default "iso8859-1"
800 help
801 Set this to the default input/output character set you'd
802 like FAT to use. It should probably match the character set
803 that most of your FAT filesystems use, and can be overridden
804 with the "iocharset" mount option for FAT filesystems.
805 Note that "utf8" is not recommended for FAT filesystems.
806 If unsure, you shouldn't set "utf8" here.
807 See <file:Documentation/filesystems/vfat.txt> for more information.
808
809config NTFS_FS
810 tristate "NTFS file system support"
811 select NLS
812 help
813 NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
814
815 Saying Y or M here enables read support. There is partial, but
816 safe, write support available. For write support you must also
817 say Y to "NTFS write support" below.
818
819 There are also a number of user-space tools available, called
820 ntfsprogs. These include ntfsundelete and ntfsresize, that work
821 without NTFS support enabled in the kernel.
822
823 This is a rewrite from scratch of Linux NTFS support and replaced
824 the old NTFS code starting with Linux 2.5.11. A backport to
825 the Linux 2.4 kernel series is separately available as a patch
826 from the project web site.
827
828 For more information see <file:Documentation/filesystems/ntfs.txt>
829 and <http://linux-ntfs.sourceforge.net/>.
830
831 To compile this file system support as a module, choose M here: the
832 module will be called ntfs.
833
834 If you are not using Windows NT, 2000, XP or 2003 in addition to
835 Linux on your computer it is safe to say N.
836
837config NTFS_DEBUG
838 bool "NTFS debugging support"
839 depends on NTFS_FS
840 help
841 If you are experiencing any problems with the NTFS file system, say
842 Y here. This will result in additional consistency checks to be
843 performed by the driver as well as additional debugging messages to
844 be written to the system log. Note that debugging messages are
845 disabled by default. To enable them, supply the option debug_msgs=1
846 at the kernel command line when booting the kernel or as an option
847 to insmod when loading the ntfs module. Once the driver is active,
848 you can enable debugging messages by doing (as root):
849 echo 1 > /proc/sys/fs/ntfs-debug
850 Replacing the "1" with "0" would disable debug messages.
851
852 If you leave debugging messages disabled, this results in little
853 overhead, but enabling debug messages results in very significant
854 slowdown of the system.
855
856 When reporting bugs, please try to have available a full dump of
857 debugging messages while the misbehaviour was occurring.
858
859config NTFS_RW
860 bool "NTFS write support"
861 depends on NTFS_FS
862 help
863 This enables the partial, but safe, write support in the NTFS driver.
864
865 The only supported operation is overwriting existing files, without
866 changing the file length. No file or directory creation, deletion or
867 renaming is possible. Note only non-resident files can be written to
868 so you may find that some very small files (<500 bytes or so) cannot
869 be written to.
870
871 While we cannot guarantee that it will not damage any data, we have
872 so far not received a single report where the driver would have
873 damaged someones data so we assume it is perfectly safe to use.
874
875 Note: While write support is safe in this version (a rewrite from
876 scratch of the NTFS support), it should be noted that the old NTFS
877 write support, included in Linux 2.5.10 and before (since 1997),
878 is not safe.
879
880 This is currently useful with TopologiLinux. TopologiLinux is run
881 on top of any DOS/Microsoft Windows system without partitioning your
882 hard disk. Unlike other Linux distributions TopologiLinux does not
883 need its own partition. For more information see
884 <http://topologi-linux.sourceforge.net/>
885
886 It is perfectly safe to say N here.
887
888endmenu
David Howells93614012006-09-30 20:45:40 +0200889endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890
891menu "Pseudo filesystems"
892
893config PROC_FS
H. Peter Anvin69755652006-06-25 05:48:08 -0700894 bool "/proc file system support" if EMBEDDED
895 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896 help
897 This is a virtual file system providing information about the status
898 of the system. "Virtual" means that it doesn't take up any space on
899 your hard disk: the files are created on the fly by the kernel when
900 you try to access them. Also, you cannot read the files with older
901 version of the program less: you need to use more or cat.
902
903 It's totally cool; for example, "cat /proc/interrupts" gives
904 information about what the different IRQs are used for at the moment
905 (there is a small number of Interrupt ReQuest lines in your computer
906 that are used by the attached devices to gain the CPU's attention --
907 often a source of trouble if two devices are mistakenly configured
908 to use the same IRQ). The program procinfo to display some
909 information about your system gathered from the /proc file system.
910
911 Before you can use the /proc file system, it has to be mounted,
912 meaning it has to be given a location in the directory hierarchy.
913 That location should be /proc. A command such as "mount -t proc proc
914 /proc" or the equivalent line in /etc/fstab does the job.
915
916 The /proc file system is explained in the file
917 <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
918 ("man 5 proc").
919
920 This option will enlarge your kernel by about 67 KB. Several
921 programs depend on this, so everyone should say Y here.
922
923config PROC_KCORE
924 bool "/proc/kcore support" if !ARM
925 depends on PROC_FS && MMU
926
Vivek Goyal666bfdd2005-06-25 14:58:21 -0700927config PROC_VMCORE
928 bool "/proc/vmcore support (EXPERIMENTAL)"
Maneesh Soni05970d42006-01-09 20:51:52 -0800929 depends on PROC_FS && EXPERIMENTAL && CRASH_DUMP
Vivek Goyal68250ba2006-04-10 22:54:30 -0700930 default y
Vivek Goyal666bfdd2005-06-25 14:58:21 -0700931 help
932 Exports the dump image of crashed kernel in ELF format.
933
Eric W. Biedermanb89a8172006-09-27 01:51:04 -0700934config PROC_SYSCTL
935 bool "Sysctl support (/proc/sys)" if EMBEDDED
936 depends on PROC_FS
937 select SYSCTL
938 default y
939 ---help---
940 The sysctl interface provides a means of dynamically changing
941 certain kernel parameters and variables on the fly without requiring
942 a recompile of the kernel or reboot of the system. The primary
943 interface is through /proc/sys. If you say Y here a tree of
944 modifiable sysctl entries will be generated beneath the
945 /proc/sys directory. They are explained in the files
946 in <file:Documentation/sysctl/>. Note that enabling this
947 option will enlarge the kernel by at least 8 KB.
948
949 As it is generally a good thing, you should say Y here unless
950 building a kernel for install/rescue disks or your system is very
951 limited in memory.
952
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953config SYSFS
954 bool "sysfs file system support" if EMBEDDED
955 default y
956 help
957 The sysfs filesystem is a virtual filesystem that the kernel uses to
958 export internal kernel objects, their attributes, and their
959 relationships to one another.
960
961 Users can use sysfs to ascertain useful information about the running
962 kernel, such as the devices the kernel has discovered on each bus and
963 which driver each is bound to. sysfs can also be used to tune devices
964 and other kernel subsystems.
965
966 Some system agents rely on the information in sysfs to operate.
967 /sbin/hotplug uses device and object attributes in sysfs to assist in
Jan Engelhardt03a67a42006-11-30 05:32:19 +0100968 delegating policy decisions, like persistently naming devices.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969
970 sysfs is currently used by the block subsystem to mount the root
971 partition. If sysfs is disabled you must specify the boot device on
972 the kernel boot command line via its major and minor numbers. For
973 example, "root=03:01" for /dev/hda1.
974
975 Designers of embedded systems may wish to say N here to conserve space.
976
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977config TMPFS
978 bool "Virtual memory file system support (former shm fs)"
979 help
980 Tmpfs is a file system which keeps all files in virtual memory.
981
982 Everything in tmpfs is temporary in the sense that no files will be
983 created on your hard drive. The files live in memory and swap
984 space. If you unmount a tmpfs instance, everything stored therein is
985 lost.
986
987 See <file:Documentation/filesystems/tmpfs.txt> for details.
988
Andreas Gruenbacher39f02472006-09-29 02:01:35 -0700989config TMPFS_POSIX_ACL
990 bool "Tmpfs POSIX Access Control Lists"
991 depends on TMPFS
992 select GENERIC_ACL
993 help
994 POSIX Access Control Lists (ACLs) support permissions for users and
995 groups beyond the owner/group/world scheme.
996
997 To learn more about Access Control Lists, visit the POSIX ACLs for
998 Linux website <http://acl.bestbits.at/>.
999
1000 If you don't know what Access Control Lists are, say N.
1001
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002config HUGETLBFS
1003 bool "HugeTLB file system support"
Robert P. J. Daybef1f402006-12-12 20:04:19 +01001004 depends on X86 || IA64 || PPC64 || SPARC64 || SUPERH || BROKEN
Arthur Othienodda27d12006-04-18 22:20:57 -07001005 help
1006 hugetlbfs is a filesystem backing for HugeTLB pages, based on
1007 ramfs. For architectures that support it, say Y here and read
1008 <file:Documentation/vm/hugetlbpage.txt> for details.
1009
1010 If unsure, say N.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011
1012config HUGETLB_PAGE
1013 def_bool HUGETLBFS
1014
1015config RAMFS
1016 bool
1017 default y
1018 ---help---
1019 Ramfs is a file system which keeps all files in RAM. It allows
1020 read and write access.
1021
1022 It is more of an programming example than a useable file system. If
1023 you need a file system which lives in RAM with limit checking use
1024 tmpfs.
1025
1026 To compile this as a module, choose M here: the module will be called
1027 ramfs.
1028
Joel Becker7063fbf2005-12-15 14:29:43 -08001029config CONFIGFS_FS
1030 tristate "Userspace-driven configuration filesystem (EXPERIMENTAL)"
Adrian Bunk65714b92006-03-26 14:25:52 +02001031 depends on SYSFS && EXPERIMENTAL
Joel Becker7063fbf2005-12-15 14:29:43 -08001032 help
1033 configfs is a ram-based filesystem that provides the converse
1034 of sysfs's functionality. Where sysfs is a filesystem-based
1035 view of kernel objects, configfs is a filesystem-based manager
1036 of kernel objects, or config_items.
1037
1038 Both sysfs and configfs can and should exist together on the
1039 same system. One is not a replacement for the other.
1040
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041endmenu
1042
1043menu "Miscellaneous filesystems"
1044
1045config ADFS_FS
1046 tristate "ADFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001047 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048 help
1049 The Acorn Disc Filing System is the standard file system of the
1050 RiscOS operating system which runs on Acorn's ARM-based Risc PC
1051 systems and the Acorn Archimedes range of machines. If you say Y
1052 here, Linux will be able to read from ADFS partitions on hard drives
1053 and from ADFS-formatted floppy discs. If you also want to be able to
1054 write to those devices, say Y to "ADFS write support" below.
1055
1056 The ADFS partition should be the first partition (i.e.,
1057 /dev/[hs]d?1) on each of your drives. Please read the file
1058 <file:Documentation/filesystems/adfs.txt> for further details.
1059
1060 To compile this code as a module, choose M here: the module will be
1061 called adfs.
1062
1063 If unsure, say N.
1064
1065config ADFS_FS_RW
1066 bool "ADFS write support (DANGEROUS)"
1067 depends on ADFS_FS
1068 help
1069 If you say Y here, you will be able to write to ADFS partitions on
1070 hard drives and ADFS-formatted floppy disks. This is experimental
1071 codes, so if you're unsure, say N.
1072
1073config AFFS_FS
1074 tristate "Amiga FFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001075 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076 help
1077 The Fast File System (FFS) is the common file system used on hard
1078 disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y
1079 if you want to be able to read and write files from and to an Amiga
1080 FFS partition on your hard drive. Amiga floppies however cannot be
1081 read with this driver due to an incompatibility of the floppy
1082 controller used in an Amiga and the standard floppy controller in
1083 PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
1084 and <file:fs/affs/Changes>.
1085
1086 With this driver you can also mount disk files used by Bernd
1087 Schmidt's Un*X Amiga Emulator
1088 (<http://www.freiburg.linux.de/~uae/>).
1089 If you want to do this, you will also need to say Y or M to "Loop
1090 device support", above.
1091
1092 To compile this file system support as a module, choose M here: the
1093 module will be called affs. If unsure, say N.
1094
Michael Halcrow237fead2006-10-04 02:16:22 -07001095config ECRYPT_FS
1096 tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
1097 depends on EXPERIMENTAL && KEYS && CRYPTO
1098 help
1099 Encrypted filesystem that operates on the VFS layer. See
1100 <file:Documentation/ecryptfs.txt> to learn more about
1101 eCryptfs. Userspace components are required and can be
1102 obtained from <http://ecryptfs.sf.net>.
1103
1104 To compile this file system support as a module, choose M here: the
1105 module will be called ecryptfs.
1106
Linus Torvalds1da177e2005-04-16 15:20:36 -07001107config HFS_FS
1108 tristate "Apple Macintosh file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001109 depends on BLOCK && EXPERIMENTAL
Lennert Buytenhek878129a2005-11-07 00:59:18 -08001110 select NLS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111 help
1112 If you say Y here, you will be able to mount Macintosh-formatted
1113 floppy disks and hard drive partitions with full read-write access.
1114 Please read <file:fs/hfs/HFS.txt> to learn about the available mount
1115 options.
1116
1117 To compile this file system support as a module, choose M here: the
1118 module will be called hfs.
1119
1120config HFSPLUS_FS
1121 tristate "Apple Extended HFS file system support"
David Howells93614012006-09-30 20:45:40 +02001122 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123 select NLS
1124 select NLS_UTF8
1125 help
1126 If you say Y here, you will be able to mount extended format
1127 Macintosh-formatted hard drive partitions with full read-write access.
1128
1129 This file system is often called HFS+ and was introduced with
1130 MacOS 8. It includes all Mac specific filesystem data such as
1131 data forks and creator codes, but it also has several UNIX
1132 style features such as file ownership and permissions.
1133
1134config BEFS_FS
1135 tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001136 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001137 select NLS
1138 help
1139 The BeOS File System (BeFS) is the native file system of Be, Inc's
1140 BeOS. Notable features include support for arbitrary attributes
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +01001141 on files and directories, and database-like indices on selected
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142 attributes. (Also note that this driver doesn't make those features
1143 available at this time). It is a 64 bit filesystem, so it supports
Matt LaPlante44c09202006-10-03 22:34:14 +02001144 extremely large volumes and files.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001145
1146 If you use this filesystem, you should also say Y to at least one
1147 of the NLS (native language support) options below.
1148
1149 If you don't know what this is about, say N.
1150
1151 To compile this as a module, choose M here: the module will be
1152 called befs.
1153
1154config BEFS_DEBUG
1155 bool "Debug BeFS"
1156 depends on BEFS_FS
1157 help
1158 If you say Y here, you can use the 'debug' mount option to enable
1159 debugging output from the driver.
1160
1161config BFS_FS
1162 tristate "BFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001163 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164 help
1165 Boot File System (BFS) is a file system used under SCO UnixWare to
1166 allow the bootloader access to the kernel image and other important
1167 files during the boot process. It is usually mounted under /stand
1168 and corresponds to the slice marked as "STAND" in the UnixWare
1169 partition. You should say Y if you want to read or write the files
1170 on your /stand slice from within Linux. You then also need to say Y
1171 to "UnixWare slices support", below. More information about the BFS
1172 file system is contained in the file
1173 <file:Documentation/filesystems/bfs.txt>.
1174
1175 If you don't know what this is about, say N.
1176
1177 To compile this as a module, choose M here: the module will be called
1178 bfs. Note that the file system of your root partition (the one
1179 containing the directory /) cannot be compiled as a module.
1180
1181
1182
1183config EFS_FS
1184 tristate "EFS file system support (read only) (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001185 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186 help
1187 EFS is an older file system used for non-ISO9660 CD-ROMs and hard
1188 disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
1189 uses the XFS file system for hard disk partitions however).
1190
1191 This implementation only offers read-only access. If you don't know
1192 what all this is about, it's safe to say N. For more information
1193 about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
1194
1195 To compile the EFS file system support as a module, choose M here: the
1196 module will be called efs.
1197
1198config JFFS_FS
1199 tristate "Journalling Flash File System (JFFS) support"
Josh Boyer163ca882006-12-22 01:09:03 -08001200 depends on MTD && BLOCK && BROKEN
Linus Torvalds1da177e2005-04-16 15:20:36 -07001201 help
Matt LaPlantecc2e2762006-10-03 22:22:29 +02001202 JFFS is the Journalling Flash File System developed by Axis
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203 Communications in Sweden, aimed at providing a crash/powerdown-safe
1204 file system for disk-less embedded devices. Further information is
1205 available at (<http://developer.axis.com/software/jffs/>).
1206
Josh Boyer163ca882006-12-22 01:09:03 -08001207 NOTE: This filesystem is deprecated and is scheduled for removal in
1208 2.6.21. See Documentation/feature-removal-schedule.txt
1209
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210config JFFS_FS_VERBOSE
1211 int "JFFS debugging verbosity (0 = quiet, 3 = noisy)"
1212 depends on JFFS_FS
1213 default "0"
1214 help
1215 Determines the verbosity level of the JFFS debugging messages.
1216
1217config JFFS_PROC_FS
1218 bool "JFFS stats available in /proc filesystem"
1219 depends on JFFS_FS && PROC_FS
1220 help
1221 Enabling this option will cause statistics from mounted JFFS file systems
1222 to be made available to the user in the /proc/fs/jffs/ directory.
1223
1224config JFFS2_FS
1225 tristate "Journalling Flash File System v2 (JFFS2) support"
1226 select CRC32
1227 depends on MTD
1228 help
1229 JFFS2 is the second generation of the Journalling Flash File System
1230 for use on diskless embedded devices. It provides improved wear
1231 levelling, compression and support for hard links. You cannot use
1232 this on normal block devices, only on 'MTD' devices.
1233
1234 Further information on the design and implementation of JFFS2 is
1235 available at <http://sources.redhat.com/jffs2/>.
1236
1237config JFFS2_FS_DEBUG
1238 int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
1239 depends on JFFS2_FS
1240 default "0"
1241 help
1242 This controls the amount of debugging messages produced by the JFFS2
1243 code. Set it to zero for use in production systems. For evaluation,
1244 testing and debugging, it's advisable to set it to one. This will
1245 enable a few assertions and will print debugging messages at the
1246 KERN_DEBUG loglevel, where they won't normally be visible. Level 2
1247 is unlikely to be useful - it enables extra debugging in certain
1248 areas which at one point needed debugging, but when the bugs were
1249 located and fixed, the detailed messages were relegated to level 2.
1250
1251 If reporting bugs, please try to have available a full dump of the
1252 messages at debug level 1 while the misbehaviour was occurring.
1253
David Woodhouse2ba72cb2006-06-18 10:22:40 +01001254config JFFS2_FS_WRITEBUFFER
1255 bool "JFFS2 write-buffering support"
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001256 depends on JFFS2_FS
David Woodhouse2ba72cb2006-06-18 10:22:40 +01001257 default y
1258 help
1259 This enables the write-buffering support in JFFS2.
1260
1261 This functionality is required to support JFFS2 on the following
1262 types of flash devices:
1263 - NAND flash
1264 - NOR flash with transparent ECC
1265 - DataFlash
1266
1267config JFFS2_SUMMARY
1268 bool "JFFS2 summary support (EXPERIMENTAL)"
1269 depends on JFFS2_FS && EXPERIMENTAL
1270 default n
1271 help
1272 This feature makes it possible to use summary information
1273 for faster filesystem mount.
1274
1275 The summary information can be inserted into a filesystem image
1276 by the utility 'sumtool'.
1277
1278 If unsure, say 'N'.
1279
1280config JFFS2_FS_XATTR
1281 bool "JFFS2 XATTR support (EXPERIMENTAL)"
KaiGai Kohei04510de2006-06-24 09:21:13 +09001282 depends on JFFS2_FS && EXPERIMENTAL
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001283 default n
1284 help
1285 Extended attributes are name:value pairs associated with inodes by
1286 the kernel or by users (see the attr(5) manual page, or visit
1287 <http://acl.bestbits.at/> for details).
1288
1289 If unsure, say N.
1290
1291config JFFS2_FS_POSIX_ACL
1292 bool "JFFS2 POSIX Access Control Lists"
1293 depends on JFFS2_FS_XATTR
1294 default y
1295 select FS_POSIX_ACL
1296 help
1297 Posix Access Control Lists (ACLs) support permissions for users and
1298 groups beyond the owner/group/world scheme.
1299
1300 To learn more about Access Control Lists, visit the Posix ACLs for
1301 Linux website <http://acl.bestbits.at/>.
1302
1303 If you don't know what Access Control Lists are, say N
1304
1305config JFFS2_FS_SECURITY
1306 bool "JFFS2 Security Labels"
1307 depends on JFFS2_FS_XATTR
1308 default y
1309 help
1310 Security labels support alternative access control models
1311 implemented by security modules like SELinux. This option
1312 enables an extended attribute handler for file security
1313 labels in the jffs2 filesystem.
1314
1315 If you are not using a security module that requires using
1316 extended attributes for file security labels, say N.
1317
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318config JFFS2_COMPRESSION_OPTIONS
1319 bool "Advanced compression options for JFFS2"
1320 depends on JFFS2_FS
1321 default n
1322 help
1323 Enabling this option allows you to explicitly choose which
1324 compression modules, if any, are enabled in JFFS2. Removing
1325 compressors and mean you cannot read existing file systems,
1326 and enabling experimental compressors can mean that you
1327 write a file system which cannot be read by a standard kernel.
1328
1329 If unsure, you should _definitely_ say 'N'.
1330
1331config JFFS2_ZLIB
1332 bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS
1333 select ZLIB_INFLATE
1334 select ZLIB_DEFLATE
1335 depends on JFFS2_FS
1336 default y
1337 help
1338 Zlib is designed to be a free, general-purpose, legally unencumbered,
Thomas Gleixner182ec4e2005-11-07 11:16:07 +00001339 lossless data-compression library for use on virtually any computer
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340 hardware and operating system. See <http://www.gzip.org/zlib/> for
1341 further information.
Thomas Gleixner182ec4e2005-11-07 11:16:07 +00001342
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343 Say 'Y' if unsure.
1344
1345config JFFS2_RTIME
1346 bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
1347 depends on JFFS2_FS
1348 default y
1349 help
1350 Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
1351
1352config JFFS2_RUBIN
1353 bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
1354 depends on JFFS2_FS
1355 default n
1356 help
1357 RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
1358
1359choice
1360 prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
1361 default JFFS2_CMODE_PRIORITY
1362 depends on JFFS2_FS
1363 help
Thomas Gleixner182ec4e2005-11-07 11:16:07 +00001364 You can set here the default compression mode of JFFS2 from
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 the available compression modes. Don't touch if unsure.
1366
1367config JFFS2_CMODE_NONE
1368 bool "no compression"
1369 help
1370 Uses no compression.
1371
1372config JFFS2_CMODE_PRIORITY
1373 bool "priority"
1374 help
Matt LaPlantecc2e2762006-10-03 22:22:29 +02001375 Tries the compressors in a predefined order and chooses the first
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376 successful one.
1377
1378config JFFS2_CMODE_SIZE
1379 bool "size (EXPERIMENTAL)"
1380 help
Thomas Gleixner182ec4e2005-11-07 11:16:07 +00001381 Tries all compressors and chooses the one which has the smallest
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382 result.
1383
1384endchoice
1385
1386config CRAMFS
1387 tristate "Compressed ROM file system support (cramfs)"
David Howells93614012006-09-30 20:45:40 +02001388 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389 select ZLIB_INFLATE
1390 help
1391 Saying Y here includes support for CramFs (Compressed ROM File
1392 System). CramFs is designed to be a simple, small, and compressed
1393 file system for ROM based embedded systems. CramFs is read-only,
1394 limited to 256MB file systems (with 16MB files), and doesn't support
1395 16/32 bits uid/gid, hard links and timestamps.
1396
1397 See <file:Documentation/filesystems/cramfs.txt> and
1398 <file:fs/cramfs/README> for further information.
1399
1400 To compile this as a module, choose M here: the module will be called
1401 cramfs. Note that the root file system (the one containing the
1402 directory /) cannot be compiled as a module.
1403
1404 If unsure, say N.
1405
1406config VXFS_FS
1407 tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
David Howells93614012006-09-30 20:45:40 +02001408 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409 help
1410 FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
1411 file system format. VERITAS VxFS(TM) is the standard file system
1412 of SCO UnixWare (and possibly others) and optionally available
1413 for Sunsoft Solaris, HP-UX and many other operating systems.
1414 Currently only readonly access is supported.
1415
1416 NOTE: the file system type as used by mount(1), mount(2) and
1417 fstab(5) is 'vxfs' as it describes the file system format, not
1418 the actual driver.
1419
1420 To compile this as a module, choose M here: the module will be
1421 called freevxfs. If unsure, say N.
1422
1423
1424config HPFS_FS
1425 tristate "OS/2 HPFS file system support"
David Howells93614012006-09-30 20:45:40 +02001426 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427 help
1428 OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
1429 is the file system used for organizing files on OS/2 hard disk
1430 partitions. Say Y if you want to be able to read files from and
1431 write files to an OS/2 HPFS partition on your hard drive. OS/2
1432 floppies however are in regular MSDOS format, so you don't need this
1433 option in order to be able to read them. Read
1434 <file:Documentation/filesystems/hpfs.txt>.
1435
1436 To compile this file system support as a module, choose M here: the
1437 module will be called hpfs. If unsure, say N.
1438
1439
1440
1441config QNX4FS_FS
1442 tristate "QNX4 file system support (read only)"
David Howells93614012006-09-30 20:45:40 +02001443 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444 help
1445 This is the file system used by the real-time operating systems
1446 QNX 4 and QNX 6 (the latter is also called QNX RTP).
1447 Further information is available at <http://www.qnx.com/>.
1448 Say Y if you intend to mount QNX hard disks or floppies.
1449 Unless you say Y to "QNX4FS read-write support" below, you will
1450 only be able to read these file systems.
1451
1452 To compile this file system support as a module, choose M here: the
1453 module will be called qnx4.
1454
1455 If you don't know whether you need it, then you don't need it:
1456 answer N.
1457
1458config QNX4FS_RW
1459 bool "QNX4FS write support (DANGEROUS)"
1460 depends on QNX4FS_FS && EXPERIMENTAL && BROKEN
1461 help
1462 Say Y if you want to test write support for QNX4 file systems.
1463
1464 It's currently broken, so for now:
1465 answer N.
1466
1467
1468
1469config SYSV_FS
1470 tristate "System V/Xenix/V7/Coherent file system support"
David Howells93614012006-09-30 20:45:40 +02001471 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 help
1473 SCO, Xenix and Coherent are commercial Unix systems for Intel
1474 machines, and Version 7 was used on the DEC PDP-11. Saying Y
1475 here would allow you to read from their floppies and hard disk
1476 partitions.
1477
1478 If you have floppies or hard disk partitions like that, it is likely
1479 that they contain binaries from those other Unix systems; in order
Matt LaPlantecab00892006-10-03 22:36:44 +02001480 to run these binaries, you will want to install linux-abi which is
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481 a set of kernel modules that lets you run SCO, Xenix, Wyse,
1482 UnixWare, Dell Unix and System V programs under Linux. It is
1483 available via FTP (user: ftp) from
1484 <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
1485 NOTE: that will work only for binaries from Intel-based systems;
1486 PDP ones will have to wait until somebody ports Linux to -11 ;-)
1487
1488 If you only intend to mount files from some other Unix over the
1489 network using NFS, you don't need the System V file system support
1490 (but you need NFS file system support obviously).
1491
1492 Note that this option is generally not needed for floppies, since a
1493 good portable way to transport files and directories between unixes
1494 (and even other operating systems) is given by the tar program ("man
1495 tar" or preferably "info tar"). Note also that this option has
1496 nothing whatsoever to do with the option "System V IPC". Read about
1497 the System V file system in
1498 <file:Documentation/filesystems/sysv-fs.txt>.
1499 Saying Y here will enlarge your kernel by about 27 KB.
1500
1501 To compile this as a module, choose M here: the module will be called
1502 sysv.
1503
1504 If you haven't heard about all of this before, it's safe to say N.
1505
1506
1507
1508config UFS_FS
1509 tristate "UFS file system support (read only)"
David Howells93614012006-09-30 20:45:40 +02001510 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001511 help
1512 BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
1513 OpenBSD and NeXTstep) use a file system called UFS. Some System V
1514 Unixes can create and mount hard disk partitions and diskettes using
1515 this file system as well. Saying Y here will allow you to read from
1516 these partitions; if you also want to write to them, say Y to the
1517 experimental "UFS file system write support", below. Please read the
1518 file <file:Documentation/filesystems/ufs.txt> for more information.
1519
1520 The recently released UFS2 variant (used in FreeBSD 5.x) is
1521 READ-ONLY supported.
1522
1523 If you only intend to mount files from some other Unix over the
1524 network using NFS, you don't need the UFS file system support (but
1525 you need NFS file system support obviously).
1526
1527 Note that this option is generally not needed for floppies, since a
1528 good portable way to transport files and directories between unixes
1529 (and even other operating systems) is given by the tar program ("man
1530 tar" or preferably "info tar").
1531
1532 When accessing NeXTstep files, you may need to convert them from the
1533 NeXT character set to the Latin1 character set; use the program
1534 recode ("info recode") for this purpose.
1535
1536 To compile the UFS file system support as a module, choose M here: the
1537 module will be called ufs.
1538
1539 If you haven't heard about all of this before, it's safe to say N.
1540
1541config UFS_FS_WRITE
1542 bool "UFS file system write support (DANGEROUS)"
Evgeniy Dushistov5afb3142006-06-25 05:47:24 -07001543 depends on UFS_FS && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544 help
1545 Say Y here if you want to try writing to UFS partitions. This is
1546 experimental, so you should back up your UFS partitions beforehand.
1547
Evgeniy Dushistovabf5d152006-06-25 05:47:24 -07001548config UFS_DEBUG
1549 bool "UFS debugging"
1550 depends on UFS_FS
1551 help
1552 If you are experiencing any problems with the UFS filesystem, say
1553 Y here. This will result in _many_ additional debugging messages to be
1554 written to the system log.
1555
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556endmenu
1557
1558menu "Network File Systems"
1559 depends on NET
1560
1561config NFS_FS
1562 tristate "NFS file system support"
1563 depends on INET
1564 select LOCKD
1565 select SUNRPC
Andreas Gruenbacherb7fa0552005-06-22 17:16:27 +00001566 select NFS_ACL_SUPPORT if NFS_V3_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001567 help
1568 If you are connected to some other (usually local) Unix computer
1569 (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
1570 on that computer (the NFS server) using the Network File Sharing
1571 protocol, say Y. "Mounting files" means that the client can access
1572 the files with usual UNIX commands as if they were sitting on the
1573 client's hard disk. For this to work, the server must run the
1574 programs nfsd and mountd (but does not need to have NFS file system
1575 support enabled in its kernel). NFS is explained in the Network
1576 Administrator's Guide, available from
1577 <http://www.tldp.org/docs.html#guide>, on its man page: "man
1578 nfs", and in the NFS-HOWTO.
1579
1580 A superior but less widely used alternative to NFS is provided by
1581 the Coda file system; see "Coda file system support" below.
1582
1583 If you say Y here, you should have said Y to TCP/IP networking also.
1584 This option would enlarge your kernel by about 27 KB.
1585
1586 To compile this file system support as a module, choose M here: the
1587 module will be called nfs.
1588
1589 If you are configuring a diskless machine which will mount its root
1590 file system over NFS at boot time, say Y here and to "Kernel
1591 level IP autoconfiguration" above and to "Root file system on NFS"
1592 below. You cannot compile this driver as a module in this case.
1593 There are two packages designed for booting diskless machines over
1594 the net: netboot, available from
1595 <http://ftp1.sourceforge.net/netboot/>, and Etherboot,
1596 available from <http://ftp1.sourceforge.net/etherboot/>.
1597
1598 If you don't know what all this is about, say N.
1599
1600config NFS_V3
1601 bool "Provide NFSv3 client support"
1602 depends on NFS_FS
1603 help
1604 Say Y here if you want your NFS client to be able to speak version
1605 3 of the NFS protocol.
1606
1607 If unsure, say Y.
1608
Andreas Gruenbacherb7fa0552005-06-22 17:16:27 +00001609config NFS_V3_ACL
1610 bool "Provide client support for the NFSv3 ACL protocol extension"
1611 depends on NFS_V3
1612 help
1613 Implement the NFSv3 ACL protocol extension for manipulating POSIX
1614 Access Control Lists. The server should also be compiled with
1615 the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option.
1616
1617 If unsure, say N.
1618
Linus Torvalds1da177e2005-04-16 15:20:36 -07001619config NFS_V4
1620 bool "Provide NFSv4 client support (EXPERIMENTAL)"
1621 depends on NFS_FS && EXPERIMENTAL
1622 select RPCSEC_GSS_KRB5
1623 help
1624 Say Y here if you want your NFS client to be able to speak the newer
1625 version 4 of the NFS protocol.
1626
1627 Note: Requires auxiliary userspace daemons which may be found on
1628 http://www.citi.umich.edu/projects/nfsv4/
1629
1630 If unsure, say N.
1631
1632config NFS_DIRECTIO
Chuck Lever026ed5c2006-09-20 14:33:07 -04001633 bool "Allow direct I/O on NFS files"
1634 depends on NFS_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001635 help
1636 This option enables applications to perform uncached I/O on files
1637 in NFS file systems using the O_DIRECT open() flag. When O_DIRECT
1638 is set for a file, its data is not cached in the system's page
1639 cache. Data is moved to and from user-level application buffers
1640 directly. Unlike local disk-based file systems, NFS O_DIRECT has
1641 no alignment restrictions.
1642
1643 Unless your program is designed to use O_DIRECT properly, you are
1644 much better off allowing the NFS client to manage data caching for
1645 you. Misusing O_DIRECT can cause poor server performance or network
1646 storms. This kernel build option defaults OFF to avoid exposing
1647 system administrators unwittingly to a potentially hazardous
1648 feature.
1649
1650 For more details on NFS O_DIRECT, see fs/nfs/direct.c.
1651
1652 If unsure, say N. This reduces the size of the NFS client, and
1653 causes open() to return EINVAL if a file residing in NFS is
1654 opened with the O_DIRECT flag.
1655
1656config NFSD
1657 tristate "NFS server support"
1658 depends on INET
1659 select LOCKD
1660 select SUNRPC
1661 select EXPORTFS
Herbert Xuf05e15b2006-06-26 00:25:39 -07001662 select NFSD_V2_ACL if NFSD_V3_ACL
1663 select NFS_ACL_SUPPORT if NFSD_V2_ACL
1664 select NFSD_TCP if NFSD_V4
1665 select CRYPTO_MD5 if NFSD_V4
1666 select CRYPTO if NFSD_V4
1667 select FS_POSIX_ACL if NFSD_V4
Linus Torvalds1da177e2005-04-16 15:20:36 -07001668 help
1669 If you want your Linux box to act as an NFS *server*, so that other
1670 computers on your local network which support NFS can access certain
1671 directories on your box transparently, you have two options: you can
1672 use the self-contained user space program nfsd, in which case you
1673 should say N here, or you can say Y and use the kernel based NFS
1674 server. The advantage of the kernel based solution is that it is
1675 faster.
1676
1677 In either case, you will need support software; the respective
1678 locations are given in the file <file:Documentation/Changes> in the
1679 NFS section.
1680
1681 If you say Y here, you will get support for version 2 of the NFS
1682 protocol (NFSv2). If you also want NFSv3, say Y to the next question
1683 as well.
1684
1685 Please read the NFS-HOWTO, available from
1686 <http://www.tldp.org/docs.html#howto>.
1687
1688 To compile the NFS server support as a module, choose M here: the
1689 module will be called nfsd. If unsure, say N.
1690
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001691config NFSD_V2_ACL
1692 bool
1693 depends on NFSD
1694
Linus Torvalds1da177e2005-04-16 15:20:36 -07001695config NFSD_V3
1696 bool "Provide NFSv3 server support"
1697 depends on NFSD
1698 help
1699 If you would like to include the NFSv3 server as well as the NFSv2
1700 server, say Y here. If unsure, say Y.
1701
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001702config NFSD_V3_ACL
1703 bool "Provide server support for the NFSv3 ACL protocol extension"
1704 depends on NFSD_V3
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001705 help
1706 Implement the NFSv3 ACL protocol extension for manipulating POSIX
1707 Access Control Lists on exported file systems. NFS clients should
1708 be compiled with the NFSv3 ACL protocol extension; see the
1709 CONFIG_NFS_V3_ACL option. If unsure, say N.
1710
Linus Torvalds1da177e2005-04-16 15:20:36 -07001711config NFSD_V4
1712 bool "Provide NFSv4 server support (EXPERIMENTAL)"
1713 depends on NFSD_V3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714 help
1715 If you would like to include the NFSv4 server as well as the NFSv2
1716 and NFSv3 servers, say Y here. This feature is experimental, and
1717 should only be used if you are interested in helping to test NFSv4.
1718 If unsure, say N.
1719
1720config NFSD_TCP
1721 bool "Provide NFS server over TCP support"
1722 depends on NFSD
1723 default y
1724 help
1725 If you want your NFS server to support TCP connections, say Y here.
1726 TCP connections usually perform better than the default UDP when
1727 the network is lossy or congested. If unsure, say Y.
1728
1729config ROOT_NFS
1730 bool "Root file system on NFS"
1731 depends on NFS_FS=y && IP_PNP
1732 help
1733 If you want your Linux box to mount its whole root file system (the
1734 one containing the directory /) from some other computer over the
1735 net via NFS (presumably because your box doesn't have a hard disk),
1736 say Y. Read <file:Documentation/nfsroot.txt> for details. It is
1737 likely that in this case, you also want to say Y to "Kernel level IP
1738 autoconfiguration" so that your box can discover its network address
1739 at boot time.
1740
1741 Most people say N here.
1742
1743config LOCKD
1744 tristate
1745
1746config LOCKD_V4
1747 bool
1748 depends on NFSD_V3 || NFS_V3
1749 default y
1750
1751config EXPORTFS
1752 tristate
1753
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001754config NFS_ACL_SUPPORT
1755 tristate
1756 select FS_POSIX_ACL
1757
1758config NFS_COMMON
1759 bool
1760 depends on NFSD || NFS_FS
1761 default y
1762
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763config SUNRPC
1764 tristate
1765
1766config SUNRPC_GSS
1767 tristate
1768
1769config RPCSEC_GSS_KRB5
1770 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
1771 depends on SUNRPC && EXPERIMENTAL
1772 select SUNRPC_GSS
1773 select CRYPTO
1774 select CRYPTO_MD5
1775 select CRYPTO_DES
Patrick McHardybcbaecb2006-10-25 16:49:36 +10001776 select CRYPTO_CBC
Linus Torvalds1da177e2005-04-16 15:20:36 -07001777 help
1778 Provides for secure RPC calls by means of a gss-api
1779 mechanism based on Kerberos V5. This is required for
1780 NFSv4.
1781
1782 Note: Requires an auxiliary userspace daemon which may be found on
1783 http://www.citi.umich.edu/projects/nfsv4/
1784
1785 If unsure, say N.
1786
1787config RPCSEC_GSS_SPKM3
1788 tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
1789 depends on SUNRPC && EXPERIMENTAL
1790 select SUNRPC_GSS
1791 select CRYPTO
1792 select CRYPTO_MD5
1793 select CRYPTO_DES
J. Bruce Fieldsdf6db302006-03-20 23:25:10 -05001794 select CRYPTO_CAST5
Patrick McHardybcbaecb2006-10-25 16:49:36 +10001795 select CRYPTO_CBC
Linus Torvalds1da177e2005-04-16 15:20:36 -07001796 help
1797 Provides for secure RPC calls by means of a gss-api
1798 mechanism based on the SPKM3 public-key mechanism.
1799
1800 Note: Requires an auxiliary userspace daemon which may be found on
1801 http://www.citi.umich.edu/projects/nfsv4/
1802
1803 If unsure, say N.
1804
1805config SMB_FS
1806 tristate "SMB file system support (to mount Windows shares etc.)"
1807 depends on INET
1808 select NLS
1809 help
1810 SMB (Server Message Block) is the protocol Windows for Workgroups
1811 (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
1812 files and printers over local networks. Saying Y here allows you to
1813 mount their file systems (often called "shares" in this context) and
1814 access them just like any other Unix directory. Currently, this
1815 works only if the Windows machines use TCP/IP as the underlying
1816 transport protocol, and not NetBEUI. For details, read
1817 <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
1818 available from <http://www.tldp.org/docs.html#howto>.
1819
1820 Note: if you just want your box to act as an SMB *server* and make
1821 files and printing services available to Windows clients (which need
1822 to have a TCP/IP stack), you don't need to say Y here; you can use
1823 the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
1824 for that.
1825
1826 General information about how to connect Linux, Windows machines and
1827 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1828
1829 To compile the SMB support as a module, choose M here: the module will
1830 be called smbfs. Most people say N, however.
1831
1832config SMB_NLS_DEFAULT
1833 bool "Use a default NLS"
1834 depends on SMB_FS
1835 help
1836 Enabling this will make smbfs use nls translations by default. You
1837 need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
1838 settings and you need to give the default nls for the SMB server as
1839 CONFIG_SMB_NLS_REMOTE.
1840
1841 The nls settings can be changed at mount time, if your smbmount
1842 supports that, using the codepage and iocharset parameters.
1843
1844 smbmount from samba 2.2.0 or later supports this.
1845
1846config SMB_NLS_REMOTE
1847 string "Default Remote NLS Option"
1848 depends on SMB_NLS_DEFAULT
1849 default "cp437"
1850 help
1851 This setting allows you to specify a default value for which
1852 codepage the server uses. If this field is left blank no
1853 translations will be done by default. The local codepage/charset
1854 default to CONFIG_NLS_DEFAULT.
1855
1856 The nls settings can be changed at mount time, if your smbmount
1857 supports that, using the codepage and iocharset parameters.
1858
1859 smbmount from samba 2.2.0 or later supports this.
1860
1861config CIFS
1862 tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)"
1863 depends on INET
1864 select NLS
1865 help
1866 This is the client VFS module for the Common Internet File System
1867 (CIFS) protocol which is the successor to the Server Message Block
1868 (SMB) protocol, the native file sharing mechanism for most early
1869 PC operating systems. The CIFS protocol is fully supported by
1870 file servers such as Windows 2000 (including Windows 2003, NT 4
1871 and Windows XP) as well by Samba (which provides excellent CIFS
Steve Frenchec58ef02005-11-04 09:44:33 -08001872 server support for Linux and many other operating systems). Limited
1873 support for Windows ME and similar servers is provided as well.
1874 You must use the smbfs client filesystem to access older SMB servers
1875 such as OS/2 and DOS.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001876
1877 The intent of the cifs module is to provide an advanced
1878 network file system client for mounting to CIFS compliant servers,
1879 including support for dfs (hierarchical name space), secure per-user
1880 session establishment, safe distributed caching (oplock), optional
1881 packet signing, Unicode and other internationalization improvements,
1882 and optional Winbind (nsswitch) integration. You do not need to enable
1883 cifs if running only a (Samba) server. It is possible to enable both
1884 smbfs and cifs (e.g. if you are using CIFS for accessing Windows 2003
1885 and Samba 3 servers, and smbfs for accessing old servers). If you need
Steve Frenchec58ef02005-11-04 09:44:33 -08001886 to mount to Samba or Windows from this machine, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001887
1888config CIFS_STATS
1889 bool "CIFS statistics"
1890 depends on CIFS
1891 help
1892 Enabling this option will cause statistics for each server share
1893 mounted by the cifs client to be displayed in /proc/fs/cifs/Stats
1894
Steve Frenchec58ef02005-11-04 09:44:33 -08001895config CIFS_STATS2
Steve French39798772006-05-31 22:40:51 +00001896 bool "Extended statistics"
Steve Frenchec58ef02005-11-04 09:44:33 -08001897 depends on CIFS_STATS
1898 help
1899 Enabling this option will allow more detailed statistics on SMB
1900 request timing to be displayed in /proc/fs/cifs/DebugData and also
1901 allow optional logging of slow responses to dmesg (depending on the
1902 value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details).
1903 These additional statistics may have a minor effect on performance
1904 and memory utilization.
1905
1906 Unless you are a developer or are doing network performance analysis
1907 or tuning, say N.
1908
Steve French39798772006-05-31 22:40:51 +00001909config CIFS_WEAK_PW_HASH
1910 bool "Support legacy servers which use weaker LANMAN security"
1911 depends on CIFS
1912 help
1913 Modern CIFS servers including Samba and most Windows versions
1914 (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos)
1915 security mechanisms. These hash the password more securely
1916 than the mechanisms used in the older LANMAN version of the
1917 SMB protocol needed to establish sessions with old SMB servers.
1918
1919 Enabling this option allows the cifs module to mount to older
1920 LANMAN based servers such as OS/2 and Windows 95, but such
1921 mounts may be less secure than mounts using NTLM or more recent
1922 security mechanisms if you are on a public network. Unless you
1923 have a need to access old SMB servers (and are on a private
1924 network) you probably want to say N. Even if this support
1925 is enabled in the kernel build, they will not be used
1926 automatically. At runtime LANMAN mounts are disabled but
1927 can be set to required (or optional) either in
1928 /proc/fs/cifs (see fs/cifs/README for more detail) or via an
1929 option on the mount command. This support is disabled by
1930 default in order to reduce the possibility of a downgrade
1931 attack.
1932
1933 If unsure, say N.
1934
Linus Torvalds1da177e2005-04-16 15:20:36 -07001935config CIFS_XATTR
Steve Frenchec58ef02005-11-04 09:44:33 -08001936 bool "CIFS extended attributes"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001937 depends on CIFS
1938 help
1939 Extended attributes are name:value pairs associated with inodes by
1940 the kernel or by users (see the attr(5) manual page, or visit
1941 <http://acl.bestbits.at/> for details). CIFS maps the name of
1942 extended attributes beginning with the user namespace prefix
1943 to SMB/CIFS EAs. EAs are stored on Windows servers without the
1944 user namespace prefix, but their names are seen by Linux cifs clients
1945 prefaced by the user namespace prefix. The system namespace
1946 (used by some filesystems to store ACLs) is not supported at
1947 this time.
Steve Frenchec58ef02005-11-04 09:44:33 -08001948
Linus Torvalds1da177e2005-04-16 15:20:36 -07001949 If unsure, say N.
1950
1951config CIFS_POSIX
Steve Frenchec58ef02005-11-04 09:44:33 -08001952 bool "CIFS POSIX Extensions"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001953 depends on CIFS_XATTR
1954 help
1955 Enabling this option will cause the cifs client to attempt to
1956 negotiate a newer dialect with servers, such as Samba 3.0.5
1957 or later, that optionally can handle more POSIX like (rather
1958 than Windows like) file behavior. It also enables
1959 support for POSIX ACLs (getfacl and setfacl) to servers
1960 (such as Samba 3.10 and later) which can negotiate
1961 CIFS POSIX ACL support. If unsure, say N.
1962
Steve French39798772006-05-31 22:40:51 +00001963config CIFS_DEBUG2
Steve French3856a9d2006-06-01 19:38:46 +00001964 bool "Enable additional CIFS debugging routines"
Steve French8ba10ab2006-07-08 02:17:40 +00001965 depends on CIFS
Steve French39798772006-05-31 22:40:51 +00001966 help
1967 Enabling this option adds a few more debugging routines
1968 to the cifs code which slightly increases the size of
1969 the cifs module and can cause additional logging of debug
1970 messages in some error paths, slowing performance. This
1971 option can be turned off unless you are debugging
1972 cifs problems. If unsure, say N.
1973
Linus Torvalds1da177e2005-04-16 15:20:36 -07001974config CIFS_EXPERIMENTAL
1975 bool "CIFS Experimental Features (EXPERIMENTAL)"
Steve Frenchcb9dbff2005-11-02 11:37:15 -08001976 depends on CIFS && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001977 help
Steve Frenchec58ef02005-11-04 09:44:33 -08001978 Enables cifs features under testing. These features are
1979 experimental and currently include support for writepages
1980 (multipage writebehind performance improvements) and directory
1981 change notification ie fcntl(F_DNOTIFY) as well as some security
1982 improvements. Some also depend on setting at runtime the
1983 pseudo-file /proc/fs/cifs/Experimental (which is disabled by
1984 default). See the file fs/cifs/README for more details.
1985
1986 If unsure, say N.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001987
Steve Frencha2653eb2005-11-10 15:33:38 -08001988config CIFS_UPCALL
Steve French39798772006-05-31 22:40:51 +00001989 bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
Steve Frencha2653eb2005-11-10 15:33:38 -08001990 depends on CIFS_EXPERIMENTAL
Andrew Morton230a0392006-10-12 15:07:55 +00001991 depends on CONNECTOR
Steve Frencha2653eb2005-11-10 15:33:38 -08001992 help
1993 Enables an upcall mechanism for CIFS which will be used to contact
1994 userspace helper utilities to provide SPNEGO packaged Kerberos
1995 tickets which are needed to mount to certain secure servers
Steve French1b397f42005-11-10 19:36:39 -08001996 (for which more secure Kerberos authentication is required). If
1997 unsure, say N.
Steve Frencha2653eb2005-11-10 15:33:38 -08001998
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999config NCP_FS
2000 tristate "NCP file system support (to mount NetWare volumes)"
2001 depends on IPX!=n || INET
2002 help
2003 NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
2004 used by Novell NetWare clients to talk to file servers. It is to
2005 IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you
2006 to mount NetWare file server volumes and to access them just like
2007 any other Unix directory. For details, please read the file
2008 <file:Documentation/filesystems/ncpfs.txt> in the kernel source and
2009 the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
2010
2011 You do not have to say Y here if you want your Linux box to act as a
2012 file *server* for Novell NetWare clients.
2013
2014 General information about how to connect Linux, Windows machines and
2015 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
2016
2017 To compile this as a module, choose M here: the module will be called
2018 ncpfs. Say N unless you are connected to a Novell network.
2019
2020source "fs/ncpfs/Kconfig"
2021
2022config CODA_FS
2023 tristate "Coda file system support (advanced network fs)"
2024 depends on INET
2025 help
2026 Coda is an advanced network file system, similar to NFS in that it
2027 enables you to mount file systems of a remote server and access them
2028 with regular Unix commands as if they were sitting on your hard
2029 disk. Coda has several advantages over NFS: support for
2030 disconnected operation (e.g. for laptops), read/write server
2031 replication, security model for authentication and encryption,
2032 persistent client caches and write back caching.
2033
2034 If you say Y here, your Linux box will be able to act as a Coda
2035 *client*. You will need user level code as well, both for the
2036 client and server. Servers are currently user level, i.e. they need
2037 no kernel support. Please read
2038 <file:Documentation/filesystems/coda.txt> and check out the Coda
2039 home page <http://www.coda.cs.cmu.edu/>.
2040
2041 To compile the coda client support as a module, choose M here: the
2042 module will be called coda.
2043
2044config CODA_FS_OLD_API
2045 bool "Use 96-bit Coda file identifiers"
2046 depends on CODA_FS
2047 help
2048 A new kernel-userspace API had to be introduced for Coda v6.0
2049 to support larger 128-bit file identifiers as needed by the
2050 new realms implementation.
2051
2052 However this new API is not backward compatible with older
2053 clients. If you really need to run the old Coda userspace
2054 cache manager then say Y.
2055
2056 For most cases you probably want to say N.
2057
2058config AFS_FS
David Howells64aaa4f2006-11-16 01:19:27 -08002059 tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002060 depends on INET && EXPERIMENTAL
2061 select RXRPC
2062 help
2063 If you say Y here, you will get an experimental Andrew File System
2064 driver. It currently only supports unsecured read-only AFS access.
2065
Matt LaPlantecc2e2762006-10-03 22:22:29 +02002066 See <file:Documentation/filesystems/afs.txt> for more information.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067
2068 If unsure, say N.
2069
2070config RXRPC
2071 tristate
2072
Eric Van Hensbergen93fa58c2005-09-09 13:04:18 -07002073config 9P_FS
2074 tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
2075 depends on INET && EXPERIMENTAL
2076 help
2077 If you say Y here, you will get experimental support for
2078 Plan 9 resource sharing via the 9P2000 protocol.
2079
2080 See <http://v9fs.sf.net> for more information.
2081
2082 If unsure, say N.
2083
Linus Torvalds1da177e2005-04-16 15:20:36 -07002084endmenu
2085
David Howells93614012006-09-30 20:45:40 +02002086if BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002087menu "Partition Types"
2088
2089source "fs/partitions/Kconfig"
2090
2091endmenu
David Howells93614012006-09-30 20:45:40 +02002092endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093
2094source "fs/nls/Kconfig"
David Teiglande7fd4172006-01-18 09:30:29 +00002095source "fs/dlm/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096
2097endmenu
2098