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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"
Jose R. Santos0f49d5d2007-07-18 08:50:18 -0400254 depends on JBD2 && DEBUG_FS
Mingming Caodab291a2006-10-11 01:21:01 -0700255 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
Jose R. Santos0f49d5d2007-07-18 08:50:18 -0400263 with "echo N > /sys/kernel/debug/jbd2/jbd2-debug", where N is a
264 number between 1 and 5. The higher the number, the more debugging
265 output is generated. To turn debugging off again, do
266 "echo 0 > /sys/kernel/debug/jbd2/jbd2-debug".
Mingming Caodab291a2006-10-11 01:21:01 -0700267
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268config FS_MBCACHE
Mingming Cao02ea2102006-10-11 01:20:56 -0700269# Meta block cache for Extended Attributes (ext2/ext3/ext4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 tristate
Mingming Cao02ea2102006-10-11 01:20:56 -0700271 depends on EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4DEV_FS_XATTR
272 default y if EXT2_FS=y || EXT3_FS=y || EXT4DEV_FS=y
273 default m if EXT2_FS=m || EXT3_FS=m || EXT4DEV_FS=m
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274
275config REISERFS_FS
276 tristate "Reiserfs support"
277 help
278 Stores not just filenames but the files themselves in a balanced
Matt LaPlantecc2e2762006-10-03 22:22:29 +0200279 tree. Uses journalling.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280
281 Balanced trees are more efficient than traditional file system
282 architectural foundations.
283
284 In general, ReiserFS is as fast as ext2, but is very efficient with
285 large directories and small files. Additional patches are needed
286 for NFS and quotas, please see <http://www.namesys.com/> for links.
287
288 It is more easily extended to have features currently found in
289 database and keyword search systems than block allocation based file
290 systems are. The next version will be so extended, and will support
291 plugins consistent with our motto ``It takes more than a license to
292 make source code open.''
293
294 Read <http://www.namesys.com/> to learn more about reiserfs.
295
296 Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com.
297
298 If you like it, you can pay us to add new features to it that you
299 need, buy a support contract, or pay us to port it to another OS.
300
301config REISERFS_CHECK
302 bool "Enable reiserfs debug mode"
303 depends on REISERFS_FS
304 help
305 If you set this to Y, then ReiserFS will perform every check it can
306 possibly imagine of its internal consistency throughout its
307 operation. It will also go substantially slower. More than once we
308 have forgotten that this was on, and then gone despondent over the
309 latest benchmarks.:-) Use of this option allows our team to go all
310 out in checking for consistency when debugging without fear of its
311 effect on end users. If you are on the verge of sending in a bug
312 report, say Y and you might get a useful error message. Almost
313 everyone should say N.
314
315config REISERFS_PROC_INFO
316 bool "Stats in /proc/fs/reiserfs"
Randy Dunlap880ebdc2007-05-08 00:26:59 -0700317 depends on REISERFS_FS && PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 help
319 Create under /proc/fs/reiserfs a hierarchy of files, displaying
320 various ReiserFS statistics and internal data at the expense of
321 making your kernel or module slightly larger (+8 KB). This also
322 increases the amount of kernel memory required for each mount.
323 Almost everyone but ReiserFS developers and people fine-tuning
324 reiserfs or tracing problems should say N.
325
326config REISERFS_FS_XATTR
327 bool "ReiserFS extended attributes"
328 depends on REISERFS_FS
329 help
330 Extended attributes are name:value pairs associated with inodes by
331 the kernel or by users (see the attr(5) manual page, or visit
332 <http://acl.bestbits.at/> for details).
333
334 If unsure, say N.
335
336config REISERFS_FS_POSIX_ACL
337 bool "ReiserFS POSIX Access Control Lists"
338 depends on REISERFS_FS_XATTR
Andreas Gruenbacherb84c2152005-07-07 17:56:57 -0700339 select FS_POSIX_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 help
341 Posix Access Control Lists (ACLs) support permissions for users and
342 groups beyond the owner/group/world scheme.
343
344 To learn more about Access Control Lists, visit the Posix ACLs for
345 Linux website <http://acl.bestbits.at/>.
346
347 If you don't know what Access Control Lists are, say N
348
349config REISERFS_FS_SECURITY
350 bool "ReiserFS Security Labels"
351 depends on REISERFS_FS_XATTR
352 help
353 Security labels support alternative access control models
354 implemented by security modules like SELinux. This option
355 enables an extended attribute handler for file security
356 labels in the ReiserFS filesystem.
357
358 If you are not using a security module that requires using
359 extended attributes for file security labels, say N.
360
361config JFS_FS
362 tristate "JFS filesystem support"
363 select NLS
364 help
365 This is a port of IBM's Journaled Filesystem . More information is
366 available in the file <file:Documentation/filesystems/jfs.txt>.
367
368 If you do not intend to use the JFS filesystem, say N.
369
370config JFS_POSIX_ACL
371 bool "JFS POSIX Access Control Lists"
372 depends on JFS_FS
Andreas Gruenbacherb84c2152005-07-07 17:56:57 -0700373 select FS_POSIX_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374 help
375 Posix Access Control Lists (ACLs) support permissions for users and
376 groups beyond the owner/group/world scheme.
377
378 To learn more about Access Control Lists, visit the Posix ACLs for
379 Linux website <http://acl.bestbits.at/>.
380
381 If you don't know what Access Control Lists are, say N
382
383config JFS_SECURITY
384 bool "JFS Security Labels"
385 depends on JFS_FS
386 help
387 Security labels support alternative access control models
388 implemented by security modules like SELinux. This option
389 enables an extended attribute handler for file security
390 labels in the jfs filesystem.
391
392 If you are not using a security module that requires using
393 extended attributes for file security labels, say N.
394
395config JFS_DEBUG
396 bool "JFS debugging"
397 depends on JFS_FS
398 help
399 If you are experiencing any problems with the JFS filesystem, say
400 Y here. This will result in additional debugging messages to be
401 written to the system log. Under normal circumstances, this
402 results in very little overhead.
403
404config JFS_STATISTICS
405 bool "JFS statistics"
406 depends on JFS_FS
407 help
408 Enabling this option will cause statistics from the JFS file system
409 to be made available to the user in the /proc/fs/jfs/ directory.
410
411config FS_POSIX_ACL
412# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs)
413#
414# NOTE: you can implement Posix ACLs without these helpers (XFS does).
415# Never use this symbol for ifdefs.
416#
417 bool
Andreas Gruenbacherb84c2152005-07-07 17:56:57 -0700418 default n
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419
420source "fs/xfs/Kconfig"
David Teiglandf7825dc2006-01-16 16:43:37 +0000421source "fs/gfs2/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422
Mark Fashehb4e40a52005-12-15 14:31:24 -0800423config OCFS2_FS
Mark Fasheh02ed8412006-09-14 10:28:06 -0700424 tristate "OCFS2 file system support"
425 depends on NET && SYSFS
Mark Fashehb4e40a52005-12-15 14:31:24 -0800426 select CONFIGFS_FS
427 select JBD
428 select CRC32
Mark Fashehb4e40a52005-12-15 14:31:24 -0800429 help
430 OCFS2 is a general purpose extent based shared disk cluster file
431 system with many similarities to ext3. It supports 64 bit inode
432 numbers, and has automatically extending metadata groups which may
433 also make it attractive for non-clustered use.
434
435 You'll want to install the ocfs2-tools package in order to at least
436 get "mount.ocfs2".
437
438 Project web page: http://oss.oracle.com/projects/ocfs2
439 Tools web page: http://oss.oracle.com/projects/ocfs2-tools
440 OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/
441
442 Note: Features which OCFS2 does not support yet:
443 - extended attributes
Mark Fashehb4e40a52005-12-15 14:31:24 -0800444 - quotas
445 - cluster aware flock
446 - Directory change notification (F_NOTIFY)
447 - Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease)
448 - POSIX ACLs
449 - readpages / writepages (not user visible)
450
Joel Becker2b388c62006-05-10 18:28:59 -0700451config OCFS2_DEBUG_MASKLOG
452 bool "OCFS2 logging support"
453 depends on OCFS2_FS
454 default y
455 help
456 The ocfs2 filesystem has an extensive logging system. The system
457 allows selection of events to log via files in /sys/o2cb/logmask/.
458 This option will enlarge your kernel, but it allows debugging of
459 ocfs2 filesystem issues.
460
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461config MINIX_FS
462 tristate "Minix fs support"
463 help
464 Minix is a simple operating system used in many classes about OS's.
465 The minix file system (method to organize files on a hard disk
466 partition or a floppy disk) was the original file system for Linux,
467 but has been superseded by the second extended file system ext2fs.
468 You don't want to use the minix file system on your hard disk
469 because of certain built-in restrictions, but it is sometimes found
470 on older Linux floppy disks. This option will enlarge your kernel
471 by about 28 KB. If unsure, say N.
472
473 To compile this file system support as a module, choose M here: the
474 module will be called minix. Note that the file system of your root
475 partition (the one containing the directory /) cannot be compiled as
476 a module.
477
478config ROMFS_FS
479 tristate "ROM file system support"
480 ---help---
481 This is a very small read-only file system mainly intended for
482 initial ram disks of installation disks, but it could be used for
483 other read-only media as well. Read
484 <file:Documentation/filesystems/romfs.txt> for details.
485
486 To compile this file system support as a module, choose M here: the
487 module will be called romfs. Note that the file system of your
488 root partition (the one containing the directory /) cannot be a
489 module.
490
491 If you don't know whether you need it, then you don't need it:
492 answer N.
493
David Howells93614012006-09-30 20:45:40 +0200494endif
495
Robert Love0eeca282005-07-12 17:06:03 -0400496config INOTIFY
497 bool "Inotify file change notification support"
498 default y
499 ---help---
Amy Griffis2d9048e2006-06-01 13:10:59 -0700500 Say Y here to enable inotify support. Inotify is a file change
501 notification system and a replacement for dnotify. Inotify fixes
502 numerous shortcomings in dnotify and introduces several new features
503 including multiple file events, one-shot support, and unmount
Robert Love3de11742005-08-04 13:07:08 -0700504 notification.
505
506 For more information, see Documentation/filesystems/inotify.txt
Robert Love0eeca282005-07-12 17:06:03 -0400507
508 If unsure, say Y.
509
Amy Griffis2d9048e2006-06-01 13:10:59 -0700510config INOTIFY_USER
511 bool "Inotify support for userspace"
512 depends on INOTIFY
513 default y
514 ---help---
515 Say Y here to enable inotify support for userspace, including the
516 associated system calls. Inotify allows monitoring of both files and
517 directories via a single open fd. Events are read from the file
518 descriptor, which is also select()- and poll()-able.
519
520 For more information, see Documentation/filesystems/inotify.txt
521
522 If unsure, say Y.
523
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524config QUOTA
525 bool "Quota support"
526 help
527 If you say Y here, you will be able to set per user limits for disk
528 usage (also called disk quotas). Currently, it works for the
529 ext2, ext3, and reiserfs file system. ext3 also supports journalled
530 quotas for which you don't need to run quotacheck(8) after an unclean
Adrian Bunk919532a2005-09-06 15:17:22 -0700531 shutdown.
532 For further details, read the Quota mini-HOWTO, available from
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533 <http://www.tldp.org/docs.html#howto>, or the documentation provided
534 with the quota tools. Probably the quota support is only useful for
535 multi user systems. If unsure, say N.
536
Jan Kara8e893462007-10-16 23:29:31 -0700537config QUOTA_NETLINK_INTERFACE
538 bool "Report quota messages through netlink interface"
539 depends on QUOTA && NET
540 help
541 If you say Y here, quota warnings (about exceeding softlimit, reaching
542 hardlimit, etc.) will be reported through netlink interface. If unsure,
543 say Y.
544
545config PRINT_QUOTA_WARNING
546 bool "Print quota warnings to console (OBSOLETE)"
547 depends on QUOTA
548 default y
549 help
550 If you say Y here, quota warnings (about exceeding softlimit, reaching
551 hardlimit, etc.) will be printed to the process' controlling terminal.
552 Note that this behavior is currently deprecated and may go away in
553 future. Please use notification via netlink socket instead.
554
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555config QFMT_V1
556 tristate "Old quota format support"
557 depends on QUOTA
558 help
559 This quota format was (is) used by kernels earlier than 2.4.22. If
560 you have quota working and you don't want to convert to new quota
561 format say Y here.
562
563config QFMT_V2
564 tristate "Quota format v2 support"
565 depends on QUOTA
566 help
567 This quota format allows using quotas with 32-bit UIDs/GIDs. If you
Adrian Bunk919532a2005-09-06 15:17:22 -0700568 need this functionality say Y here.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569
570config QUOTACTL
571 bool
572 depends on XFS_QUOTA || QUOTA
573 default y
574
575config DNOTIFY
Adrian Bunk7e341fa2007-10-16 23:27:17 -0700576 bool "Dnotify support"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577 default y
578 help
579 Dnotify is a directory-based per-fd file change notification system
580 that uses signals to communicate events to user-space. There exist
581 superior alternatives, but some applications may still rely on
582 dnotify.
583
Adrian Bunk7e341fa2007-10-16 23:27:17 -0700584 If unsure, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585
586config AUTOFS_FS
587 tristate "Kernel automounter support"
588 help
589 The automounter is a tool to automatically mount remote file systems
590 on demand. This implementation is partially kernel-based to reduce
591 overhead in the already-mounted case; this is unlike the BSD
592 automounter (amd), which is a pure user space daemon.
593
594 To use the automounter you need the user-space tools from the autofs
595 package; you can find the location in <file:Documentation/Changes>.
596 You also want to answer Y to "NFS file system support", below.
597
598 If you want to use the newer version of the automounter with more
599 features, say N here and say Y to "Kernel automounter v4 support",
600 below.
601
602 To compile this support as a module, choose M here: the module will be
603 called autofs.
604
605 If you are not a part of a fairly large, distributed network, you
606 probably do not need an automounter, and can say N here.
607
608config AUTOFS4_FS
609 tristate "Kernel automounter version 4 support (also supports v3)"
610 help
611 The automounter is a tool to automatically mount remote file systems
612 on demand. This implementation is partially kernel-based to reduce
613 overhead in the already-mounted case; this is unlike the BSD
614 automounter (amd), which is a pure user space daemon.
615
616 To use the automounter you need the user-space tools from
617 <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
618 want to answer Y to "NFS file system support", below.
619
620 To compile this support as a module, choose M here: the module will be
621 called autofs4. You will need to add "alias autofs autofs4" to your
622 modules configuration file.
623
624 If you are not a part of a fairly large, distributed network or
625 don't have a laptop which needs to dynamically reconfigure to the
626 local network, you probably do not need an automounter, and can say
627 N here.
628
Miklos Szeredi04578f12005-09-09 13:10:22 -0700629config FUSE_FS
630 tristate "Filesystem in Userspace support"
631 help
632 With FUSE it is possible to implement a fully functional filesystem
633 in a userspace program.
634
635 There's also companion library: libfuse. This library along with
636 utilities is available from the FUSE homepage:
637 <http://fuse.sourceforge.net/>
638
Miklos Szeredi909021e2005-09-27 21:45:20 -0700639 See <file:Documentation/filesystems/fuse.txt> for more information.
640 See <file:Documentation/Changes> for needed library/utility version.
641
Miklos Szeredi04578f12005-09-09 13:10:22 -0700642 If you want to develop a userspace FS, or if you want to use
643 a filesystem based on FUSE, answer Y or M.
644
Randy Dunlapf2fbc6c2006-10-19 23:28:35 -0700645config GENERIC_ACL
646 bool
647 select FS_POSIX_ACL
648
David Howells93614012006-09-30 20:45:40 +0200649if BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650menu "CD-ROM/DVD Filesystems"
651
652config ISO9660_FS
653 tristate "ISO 9660 CDROM file system support"
654 help
655 This is the standard file system used on CD-ROMs. It was previously
656 known as "High Sierra File System" and is called "hsfs" on other
657 Unix systems. The so-called Rock-Ridge extensions which allow for
658 long Unix filenames and symbolic links are also supported by this
659 driver. If you have a CD-ROM drive and want to do more with it than
660 just listen to audio CDs and watch its LEDs, say Y (and read
661 <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO,
662 available from <http://www.tldp.org/docs.html#howto>), thereby
663 enlarging your kernel by about 27 KB; otherwise say N.
664
665 To compile this file system support as a module, choose M here: the
666 module will be called isofs.
667
668config JOLIET
669 bool "Microsoft Joliet CDROM extensions"
670 depends on ISO9660_FS
671 select NLS
672 help
673 Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
674 which allows for long filenames in unicode format (unicode is the
675 new 16 bit character code, successor to ASCII, which encodes the
676 characters of almost all languages of the world; see
677 <http://www.unicode.org/> for more information). Say Y here if you
678 want to be able to read Joliet CD-ROMs under Linux.
679
680config ZISOFS
681 bool "Transparent decompression extension"
682 depends on ISO9660_FS
683 select ZLIB_INFLATE
684 help
685 This is a Linux-specific extension to RockRidge which lets you store
686 data in compressed form on a CD-ROM and have it transparently
687 decompressed when the CD-ROM is accessed. See
688 <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
689 necessary to create such a filesystem. Say Y here if you want to be
690 able to read such compressed CD-ROMs.
691
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692config UDF_FS
693 tristate "UDF file system support"
694 help
695 This is the new file system used on some CD-ROMs and DVDs. Say Y if
696 you intend to mount DVD discs or CDRW's written in packet mode, or
697 if written to by other UDF utilities, such as DirectCD.
698 Please read <file:Documentation/filesystems/udf.txt>.
699
700 To compile this file system support as a module, choose M here: the
701 module will be called udf.
702
703 If unsure, say N.
704
705config UDF_NLS
706 bool
707 default y
708 depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
709
710endmenu
David Howells93614012006-09-30 20:45:40 +0200711endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712
David Howells93614012006-09-30 20:45:40 +0200713if BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714menu "DOS/FAT/NT Filesystems"
715
716config FAT_FS
717 tristate
718 select NLS
719 help
720 If you want to use one of the FAT-based file systems (the MS-DOS and
721 VFAT (Windows 95) file systems), then you must say Y or M here
722 to include FAT support. You will then be able to mount partitions or
723 diskettes with FAT-based file systems and transparently access the
724 files on them, i.e. MSDOS files will look and behave just like all
725 other Unix files.
726
727 This FAT support is not a file system in itself, it only provides
728 the foundation for the other file systems. You will have to say Y or
729 M to at least one of "MSDOS fs support" or "VFAT fs support" in
730 order to make use of it.
731
732 Another way to read and write MSDOS floppies and hard drive
733 partitions from within Linux (but not transparently) is with the
734 mtools ("man mtools") program suite. You don't need to say Y here in
735 order to do that.
736
737 If you need to move large files on floppies between a DOS and a
738 Linux box, say Y here, mount the floppy under Linux with an MSDOS
739 file system and use GNU tar's M option. GNU tar is a program
740 available for Unix and DOS ("man tar" or "info tar").
741
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742 The FAT support will enlarge your kernel by about 37 KB. If unsure,
743 say Y.
744
745 To compile this as a module, choose M here: the module will be called
746 fat. Note that if you compile the FAT support as a module, you
747 cannot compile any of the FAT-based file systems into the kernel
748 -- they will have to be modules as well.
749
750config MSDOS_FS
751 tristate "MSDOS fs support"
752 select FAT_FS
753 help
754 This allows you to mount MSDOS partitions of your hard drive (unless
755 they are compressed; to access compressed MSDOS partitions under
756 Linux, you can either use the DOS emulator DOSEMU, described in the
757 DOSEMU-HOWTO, available from
758 <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
759 <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
760 intend to use dosemu with a non-compressed MSDOS partition, say Y
761 here) and MSDOS floppies. This means that file access becomes
762 transparent, i.e. the MSDOS files look and behave just like all
763 other Unix files.
764
765 If you have Windows 95 or Windows NT installed on your MSDOS
766 partitions, you should use the VFAT file system (say Y to "VFAT fs
767 support" below), or you will not be able to see the long filenames
768 generated by Windows 95 / Windows NT.
769
770 This option will enlarge your kernel by about 7 KB. If unsure,
771 answer Y. This will only work if you said Y to "DOS FAT fs support"
772 as well. To compile this as a module, choose M here: the module will
773 be called msdos.
774
775config VFAT_FS
776 tristate "VFAT (Windows-95) fs support"
777 select FAT_FS
778 help
779 This option provides support for normal Windows file systems with
780 long filenames. That includes non-compressed FAT-based file systems
781 used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
782 programs from the mtools package.
783
784 The VFAT support enlarges your kernel by about 10 KB and it only
785 works if you said Y to the "DOS FAT fs support" above. Please read
786 the file <file:Documentation/filesystems/vfat.txt> for details. If
787 unsure, say Y.
788
789 To compile this as a module, choose M here: the module will be called
790 vfat.
791
792config FAT_DEFAULT_CODEPAGE
793 int "Default codepage for FAT"
794 depends on MSDOS_FS || VFAT_FS
795 default 437
796 help
797 This option should be set to the codepage of your FAT filesystems.
798 It can be overridden with the "codepage" mount option.
799 See <file:Documentation/filesystems/vfat.txt> for more information.
800
801config FAT_DEFAULT_IOCHARSET
802 string "Default iocharset for FAT"
803 depends on VFAT_FS
804 default "iso8859-1"
805 help
806 Set this to the default input/output character set you'd
807 like FAT to use. It should probably match the character set
808 that most of your FAT filesystems use, and can be overridden
809 with the "iocharset" mount option for FAT filesystems.
810 Note that "utf8" is not recommended for FAT filesystems.
811 If unsure, you shouldn't set "utf8" here.
812 See <file:Documentation/filesystems/vfat.txt> for more information.
813
814config NTFS_FS
815 tristate "NTFS file system support"
816 select NLS
817 help
818 NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
819
820 Saying Y or M here enables read support. There is partial, but
821 safe, write support available. For write support you must also
822 say Y to "NTFS write support" below.
823
824 There are also a number of user-space tools available, called
825 ntfsprogs. These include ntfsundelete and ntfsresize, that work
826 without NTFS support enabled in the kernel.
827
828 This is a rewrite from scratch of Linux NTFS support and replaced
829 the old NTFS code starting with Linux 2.5.11. A backport to
830 the Linux 2.4 kernel series is separately available as a patch
831 from the project web site.
832
833 For more information see <file:Documentation/filesystems/ntfs.txt>
834 and <http://linux-ntfs.sourceforge.net/>.
835
836 To compile this file system support as a module, choose M here: the
837 module will be called ntfs.
838
839 If you are not using Windows NT, 2000, XP or 2003 in addition to
840 Linux on your computer it is safe to say N.
841
842config NTFS_DEBUG
843 bool "NTFS debugging support"
844 depends on NTFS_FS
845 help
846 If you are experiencing any problems with the NTFS file system, say
847 Y here. This will result in additional consistency checks to be
848 performed by the driver as well as additional debugging messages to
849 be written to the system log. Note that debugging messages are
850 disabled by default. To enable them, supply the option debug_msgs=1
851 at the kernel command line when booting the kernel or as an option
852 to insmod when loading the ntfs module. Once the driver is active,
853 you can enable debugging messages by doing (as root):
854 echo 1 > /proc/sys/fs/ntfs-debug
855 Replacing the "1" with "0" would disable debug messages.
856
857 If you leave debugging messages disabled, this results in little
858 overhead, but enabling debug messages results in very significant
859 slowdown of the system.
860
861 When reporting bugs, please try to have available a full dump of
862 debugging messages while the misbehaviour was occurring.
863
864config NTFS_RW
865 bool "NTFS write support"
866 depends on NTFS_FS
867 help
868 This enables the partial, but safe, write support in the NTFS driver.
869
870 The only supported operation is overwriting existing files, without
871 changing the file length. No file or directory creation, deletion or
872 renaming is possible. Note only non-resident files can be written to
873 so you may find that some very small files (<500 bytes or so) cannot
874 be written to.
875
876 While we cannot guarantee that it will not damage any data, we have
877 so far not received a single report where the driver would have
878 damaged someones data so we assume it is perfectly safe to use.
879
880 Note: While write support is safe in this version (a rewrite from
881 scratch of the NTFS support), it should be noted that the old NTFS
882 write support, included in Linux 2.5.10 and before (since 1997),
883 is not safe.
884
885 This is currently useful with TopologiLinux. TopologiLinux is run
886 on top of any DOS/Microsoft Windows system without partitioning your
887 hard disk. Unlike other Linux distributions TopologiLinux does not
888 need its own partition. For more information see
889 <http://topologi-linux.sourceforge.net/>
890
891 It is perfectly safe to say N here.
892
893endmenu
David Howells93614012006-09-30 20:45:40 +0200894endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895
896menu "Pseudo filesystems"
897
898config PROC_FS
H. Peter Anvin69755652006-06-25 05:48:08 -0700899 bool "/proc file system support" if EMBEDDED
900 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901 help
902 This is a virtual file system providing information about the status
903 of the system. "Virtual" means that it doesn't take up any space on
904 your hard disk: the files are created on the fly by the kernel when
905 you try to access them. Also, you cannot read the files with older
906 version of the program less: you need to use more or cat.
907
908 It's totally cool; for example, "cat /proc/interrupts" gives
909 information about what the different IRQs are used for at the moment
910 (there is a small number of Interrupt ReQuest lines in your computer
911 that are used by the attached devices to gain the CPU's attention --
912 often a source of trouble if two devices are mistakenly configured
913 to use the same IRQ). The program procinfo to display some
914 information about your system gathered from the /proc file system.
915
916 Before you can use the /proc file system, it has to be mounted,
917 meaning it has to be given a location in the directory hierarchy.
918 That location should be /proc. A command such as "mount -t proc proc
919 /proc" or the equivalent line in /etc/fstab does the job.
920
921 The /proc file system is explained in the file
922 <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
923 ("man 5 proc").
924
925 This option will enlarge your kernel by about 67 KB. Several
926 programs depend on this, so everyone should say Y here.
927
928config PROC_KCORE
929 bool "/proc/kcore support" if !ARM
930 depends on PROC_FS && MMU
931
Vivek Goyal666bfdd2005-06-25 14:58:21 -0700932config PROC_VMCORE
933 bool "/proc/vmcore support (EXPERIMENTAL)"
Maneesh Soni05970d42006-01-09 20:51:52 -0800934 depends on PROC_FS && EXPERIMENTAL && CRASH_DUMP
Vivek Goyal68250ba2006-04-10 22:54:30 -0700935 default y
Vivek Goyal666bfdd2005-06-25 14:58:21 -0700936 help
937 Exports the dump image of crashed kernel in ELF format.
938
Eric W. Biedermanb89a8172006-09-27 01:51:04 -0700939config PROC_SYSCTL
940 bool "Sysctl support (/proc/sys)" if EMBEDDED
941 depends on PROC_FS
942 select SYSCTL
943 default y
944 ---help---
945 The sysctl interface provides a means of dynamically changing
946 certain kernel parameters and variables on the fly without requiring
947 a recompile of the kernel or reboot of the system. The primary
948 interface is through /proc/sys. If you say Y here a tree of
949 modifiable sysctl entries will be generated beneath the
950 /proc/sys directory. They are explained in the files
951 in <file:Documentation/sysctl/>. Note that enabling this
952 option will enlarge the kernel by at least 8 KB.
953
954 As it is generally a good thing, you should say Y here unless
955 building a kernel for install/rescue disks or your system is very
956 limited in memory.
957
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958config SYSFS
959 bool "sysfs file system support" if EMBEDDED
960 default y
961 help
962 The sysfs filesystem is a virtual filesystem that the kernel uses to
963 export internal kernel objects, their attributes, and their
964 relationships to one another.
965
966 Users can use sysfs to ascertain useful information about the running
967 kernel, such as the devices the kernel has discovered on each bus and
968 which driver each is bound to. sysfs can also be used to tune devices
969 and other kernel subsystems.
970
971 Some system agents rely on the information in sysfs to operate.
972 /sbin/hotplug uses device and object attributes in sysfs to assist in
Jan Engelhardt03a67a42006-11-30 05:32:19 +0100973 delegating policy decisions, like persistently naming devices.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974
975 sysfs is currently used by the block subsystem to mount the root
976 partition. If sysfs is disabled you must specify the boot device on
977 the kernel boot command line via its major and minor numbers. For
978 example, "root=03:01" for /dev/hda1.
979
980 Designers of embedded systems may wish to say N here to conserve space.
981
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982config TMPFS
983 bool "Virtual memory file system support (former shm fs)"
984 help
985 Tmpfs is a file system which keeps all files in virtual memory.
986
987 Everything in tmpfs is temporary in the sense that no files will be
988 created on your hard drive. The files live in memory and swap
989 space. If you unmount a tmpfs instance, everything stored therein is
990 lost.
991
992 See <file:Documentation/filesystems/tmpfs.txt> for details.
993
Andreas Gruenbacher39f02472006-09-29 02:01:35 -0700994config TMPFS_POSIX_ACL
995 bool "Tmpfs POSIX Access Control Lists"
996 depends on TMPFS
997 select GENERIC_ACL
998 help
999 POSIX Access Control Lists (ACLs) support permissions for users and
1000 groups beyond the owner/group/world scheme.
1001
1002 To learn more about Access Control Lists, visit the POSIX ACLs for
1003 Linux website <http://acl.bestbits.at/>.
1004
1005 If you don't know what Access Control Lists are, say N.
1006
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007config HUGETLBFS
1008 bool "HugeTLB file system support"
Paul Mundtdd950582007-06-11 15:35:34 +09001009 depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || BROKEN
Arthur Othienodda27d12006-04-18 22:20:57 -07001010 help
1011 hugetlbfs is a filesystem backing for HugeTLB pages, based on
1012 ramfs. For architectures that support it, say Y here and read
1013 <file:Documentation/vm/hugetlbpage.txt> for details.
1014
1015 If unsure, say N.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016
1017config HUGETLB_PAGE
1018 def_bool HUGETLBFS
1019
Joel Becker7063fbf2005-12-15 14:29:43 -08001020config CONFIGFS_FS
1021 tristate "Userspace-driven configuration filesystem (EXPERIMENTAL)"
Adrian Bunk65714b92006-03-26 14:25:52 +02001022 depends on SYSFS && EXPERIMENTAL
Joel Becker7063fbf2005-12-15 14:29:43 -08001023 help
1024 configfs is a ram-based filesystem that provides the converse
1025 of sysfs's functionality. Where sysfs is a filesystem-based
1026 view of kernel objects, configfs is a filesystem-based manager
1027 of kernel objects, or config_items.
1028
1029 Both sysfs and configfs can and should exist together on the
1030 same system. One is not a replacement for the other.
1031
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032endmenu
1033
1034menu "Miscellaneous filesystems"
1035
1036config ADFS_FS
1037 tristate "ADFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001038 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039 help
1040 The Acorn Disc Filing System is the standard file system of the
1041 RiscOS operating system which runs on Acorn's ARM-based Risc PC
1042 systems and the Acorn Archimedes range of machines. If you say Y
1043 here, Linux will be able to read from ADFS partitions on hard drives
1044 and from ADFS-formatted floppy discs. If you also want to be able to
1045 write to those devices, say Y to "ADFS write support" below.
1046
1047 The ADFS partition should be the first partition (i.e.,
1048 /dev/[hs]d?1) on each of your drives. Please read the file
1049 <file:Documentation/filesystems/adfs.txt> for further details.
1050
1051 To compile this code as a module, choose M here: the module will be
1052 called adfs.
1053
1054 If unsure, say N.
1055
1056config ADFS_FS_RW
1057 bool "ADFS write support (DANGEROUS)"
1058 depends on ADFS_FS
1059 help
1060 If you say Y here, you will be able to write to ADFS partitions on
1061 hard drives and ADFS-formatted floppy disks. This is experimental
1062 codes, so if you're unsure, say N.
1063
1064config AFFS_FS
1065 tristate "Amiga FFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001066 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067 help
1068 The Fast File System (FFS) is the common file system used on hard
1069 disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y
1070 if you want to be able to read and write files from and to an Amiga
1071 FFS partition on your hard drive. Amiga floppies however cannot be
1072 read with this driver due to an incompatibility of the floppy
1073 controller used in an Amiga and the standard floppy controller in
1074 PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
1075 and <file:fs/affs/Changes>.
1076
1077 With this driver you can also mount disk files used by Bernd
1078 Schmidt's Un*X Amiga Emulator
1079 (<http://www.freiburg.linux.de/~uae/>).
1080 If you want to do this, you will also need to say Y or M to "Loop
1081 device support", above.
1082
1083 To compile this file system support as a module, choose M here: the
1084 module will be called affs. If unsure, say N.
1085
Michael Halcrow237fead2006-10-04 02:16:22 -07001086config ECRYPT_FS
1087 tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
Michael Halcrow88b4a072007-02-12 00:53:43 -08001088 depends on EXPERIMENTAL && KEYS && CRYPTO && NET
Michael Halcrow237fead2006-10-04 02:16:22 -07001089 help
1090 Encrypted filesystem that operates on the VFS layer. See
1091 <file:Documentation/ecryptfs.txt> to learn more about
1092 eCryptfs. Userspace components are required and can be
1093 obtained from <http://ecryptfs.sf.net>.
1094
1095 To compile this file system support as a module, choose M here: the
1096 module will be called ecryptfs.
1097
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098config HFS_FS
1099 tristate "Apple Macintosh file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001100 depends on BLOCK && EXPERIMENTAL
Lennert Buytenhek878129a2005-11-07 00:59:18 -08001101 select NLS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102 help
1103 If you say Y here, you will be able to mount Macintosh-formatted
1104 floppy disks and hard drive partitions with full read-write access.
1105 Please read <file:fs/hfs/HFS.txt> to learn about the available mount
1106 options.
1107
1108 To compile this file system support as a module, choose M here: the
1109 module will be called hfs.
1110
1111config HFSPLUS_FS
1112 tristate "Apple Extended HFS file system support"
David Howells93614012006-09-30 20:45:40 +02001113 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001114 select NLS
1115 select NLS_UTF8
1116 help
1117 If you say Y here, you will be able to mount extended format
1118 Macintosh-formatted hard drive partitions with full read-write access.
1119
1120 This file system is often called HFS+ and was introduced with
1121 MacOS 8. It includes all Mac specific filesystem data such as
1122 data forks and creator codes, but it also has several UNIX
1123 style features such as file ownership and permissions.
1124
1125config BEFS_FS
1126 tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001127 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128 select NLS
1129 help
1130 The BeOS File System (BeFS) is the native file system of Be, Inc's
1131 BeOS. Notable features include support for arbitrary attributes
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +01001132 on files and directories, and database-like indices on selected
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133 attributes. (Also note that this driver doesn't make those features
1134 available at this time). It is a 64 bit filesystem, so it supports
Matt LaPlante44c09202006-10-03 22:34:14 +02001135 extremely large volumes and files.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136
1137 If you use this filesystem, you should also say Y to at least one
1138 of the NLS (native language support) options below.
1139
1140 If you don't know what this is about, say N.
1141
1142 To compile this as a module, choose M here: the module will be
1143 called befs.
1144
1145config BEFS_DEBUG
1146 bool "Debug BeFS"
1147 depends on BEFS_FS
1148 help
1149 If you say Y here, you can use the 'debug' mount option to enable
1150 debugging output from the driver.
1151
1152config BFS_FS
1153 tristate "BFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001154 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155 help
1156 Boot File System (BFS) is a file system used under SCO UnixWare to
1157 allow the bootloader access to the kernel image and other important
1158 files during the boot process. It is usually mounted under /stand
1159 and corresponds to the slice marked as "STAND" in the UnixWare
1160 partition. You should say Y if you want to read or write the files
1161 on your /stand slice from within Linux. You then also need to say Y
1162 to "UnixWare slices support", below. More information about the BFS
1163 file system is contained in the file
1164 <file:Documentation/filesystems/bfs.txt>.
1165
1166 If you don't know what this is about, say N.
1167
1168 To compile this as a module, choose M here: the module will be called
1169 bfs. Note that the file system of your root partition (the one
1170 containing the directory /) cannot be compiled as a module.
1171
1172
1173
1174config EFS_FS
1175 tristate "EFS file system support (read only) (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001176 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177 help
1178 EFS is an older file system used for non-ISO9660 CD-ROMs and hard
1179 disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
1180 uses the XFS file system for hard disk partitions however).
1181
1182 This implementation only offers read-only access. If you don't know
1183 what all this is about, it's safe to say N. For more information
1184 about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
1185
1186 To compile the EFS file system support as a module, choose M here: the
1187 module will be called efs.
1188
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189config JFFS2_FS
1190 tristate "Journalling Flash File System v2 (JFFS2) support"
1191 select CRC32
1192 depends on MTD
1193 help
1194 JFFS2 is the second generation of the Journalling Flash File System
1195 for use on diskless embedded devices. It provides improved wear
1196 levelling, compression and support for hard links. You cannot use
1197 this on normal block devices, only on 'MTD' devices.
1198
1199 Further information on the design and implementation of JFFS2 is
1200 available at <http://sources.redhat.com/jffs2/>.
1201
1202config JFFS2_FS_DEBUG
1203 int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
1204 depends on JFFS2_FS
1205 default "0"
1206 help
1207 This controls the amount of debugging messages produced by the JFFS2
1208 code. Set it to zero for use in production systems. For evaluation,
1209 testing and debugging, it's advisable to set it to one. This will
1210 enable a few assertions and will print debugging messages at the
1211 KERN_DEBUG loglevel, where they won't normally be visible. Level 2
1212 is unlikely to be useful - it enables extra debugging in certain
1213 areas which at one point needed debugging, but when the bugs were
1214 located and fixed, the detailed messages were relegated to level 2.
1215
1216 If reporting bugs, please try to have available a full dump of the
1217 messages at debug level 1 while the misbehaviour was occurring.
1218
David Woodhouse2ba72cb2006-06-18 10:22:40 +01001219config JFFS2_FS_WRITEBUFFER
1220 bool "JFFS2 write-buffering support"
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001221 depends on JFFS2_FS
David Woodhouse2ba72cb2006-06-18 10:22:40 +01001222 default y
1223 help
1224 This enables the write-buffering support in JFFS2.
1225
1226 This functionality is required to support JFFS2 on the following
1227 types of flash devices:
1228 - NAND flash
1229 - NOR flash with transparent ECC
1230 - DataFlash
1231
David Woodhousea6bc4322007-07-11 14:23:54 +01001232config JFFS2_FS_WBUF_VERIFY
1233 bool "Verify JFFS2 write-buffer reads"
1234 depends on JFFS2_FS_WRITEBUFFER
1235 default n
1236 help
1237 This causes JFFS2 to read back every page written through the
1238 write-buffer, and check for errors.
1239
David Woodhouse2ba72cb2006-06-18 10:22:40 +01001240config JFFS2_SUMMARY
1241 bool "JFFS2 summary support (EXPERIMENTAL)"
1242 depends on JFFS2_FS && EXPERIMENTAL
1243 default n
1244 help
1245 This feature makes it possible to use summary information
1246 for faster filesystem mount.
1247
1248 The summary information can be inserted into a filesystem image
1249 by the utility 'sumtool'.
1250
1251 If unsure, say 'N'.
1252
1253config JFFS2_FS_XATTR
1254 bool "JFFS2 XATTR support (EXPERIMENTAL)"
KaiGai Kohei04510de2006-06-24 09:21:13 +09001255 depends on JFFS2_FS && EXPERIMENTAL
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001256 default n
1257 help
1258 Extended attributes are name:value pairs associated with inodes by
1259 the kernel or by users (see the attr(5) manual page, or visit
1260 <http://acl.bestbits.at/> for details).
1261
1262 If unsure, say N.
1263
1264config JFFS2_FS_POSIX_ACL
1265 bool "JFFS2 POSIX Access Control Lists"
1266 depends on JFFS2_FS_XATTR
1267 default y
1268 select FS_POSIX_ACL
1269 help
1270 Posix Access Control Lists (ACLs) support permissions for users and
1271 groups beyond the owner/group/world scheme.
1272
1273 To learn more about Access Control Lists, visit the Posix ACLs for
1274 Linux website <http://acl.bestbits.at/>.
1275
1276 If you don't know what Access Control Lists are, say N
1277
1278config JFFS2_FS_SECURITY
1279 bool "JFFS2 Security Labels"
1280 depends on JFFS2_FS_XATTR
1281 default y
1282 help
1283 Security labels support alternative access control models
1284 implemented by security modules like SELinux. This option
1285 enables an extended attribute handler for file security
1286 labels in the jffs2 filesystem.
1287
1288 If you are not using a security module that requires using
1289 extended attributes for file security labels, say N.
1290
Linus Torvalds1da177e2005-04-16 15:20:36 -07001291config JFFS2_COMPRESSION_OPTIONS
1292 bool "Advanced compression options for JFFS2"
1293 depends on JFFS2_FS
1294 default n
1295 help
1296 Enabling this option allows you to explicitly choose which
1297 compression modules, if any, are enabled in JFFS2. Removing
1298 compressors and mean you cannot read existing file systems,
1299 and enabling experimental compressors can mean that you
1300 write a file system which cannot be read by a standard kernel.
1301
1302 If unsure, you should _definitely_ say 'N'.
1303
1304config JFFS2_ZLIB
1305 bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS
1306 select ZLIB_INFLATE
1307 select ZLIB_DEFLATE
1308 depends on JFFS2_FS
1309 default y
David Woodhouseef53cb02007-07-10 10:01:22 +01001310 help
1311 Zlib is designed to be a free, general-purpose, legally unencumbered,
1312 lossless data-compression library for use on virtually any computer
1313 hardware and operating system. See <http://www.gzip.org/zlib/> for
1314 further information.
Thomas Gleixner182ec4e2005-11-07 11:16:07 +00001315
David Woodhouseef53cb02007-07-10 10:01:22 +01001316 Say 'Y' if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001317
Richard Purdiec799aca2007-07-10 10:28:36 +01001318config JFFS2_LZO
1319 bool "JFFS2 LZO compression support" if JFFS2_COMPRESSION_OPTIONS
1320 select LZO_COMPRESS
1321 select LZO_DECOMPRESS
1322 depends on JFFS2_FS
David Woodhouse3ca135e2007-08-02 16:32:02 +01001323 default n
Richard Purdiec799aca2007-07-10 10:28:36 +01001324 help
1325 minilzo-based compression. Generally works better than Zlib.
1326
David Woodhouse3ca135e2007-08-02 16:32:02 +01001327 This feature was added in July, 2007. Say 'N' if you need
1328 compatibility with older bootloaders or kernels.
Richard Purdiec799aca2007-07-10 10:28:36 +01001329
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330config JFFS2_RTIME
1331 bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
1332 depends on JFFS2_FS
1333 default y
David Woodhouseef53cb02007-07-10 10:01:22 +01001334 help
1335 Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336
1337config JFFS2_RUBIN
1338 bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
1339 depends on JFFS2_FS
1340 default n
David Woodhouseef53cb02007-07-10 10:01:22 +01001341 help
1342 RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343
1344choice
David Woodhouseef53cb02007-07-10 10:01:22 +01001345 prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
1346 default JFFS2_CMODE_PRIORITY
1347 depends on JFFS2_FS
1348 help
1349 You can set here the default compression mode of JFFS2 from
1350 the available compression modes. Don't touch if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001351
1352config JFFS2_CMODE_NONE
David Woodhouseef53cb02007-07-10 10:01:22 +01001353 bool "no compression"
1354 help
1355 Uses no compression.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356
1357config JFFS2_CMODE_PRIORITY
David Woodhouseef53cb02007-07-10 10:01:22 +01001358 bool "priority"
1359 help
1360 Tries the compressors in a predefined order and chooses the first
1361 successful one.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001362
1363config JFFS2_CMODE_SIZE
David Woodhouseef53cb02007-07-10 10:01:22 +01001364 bool "size (EXPERIMENTAL)"
1365 help
1366 Tries all compressors and chooses the one which has the smallest
1367 result.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368
Richard Purdie3b23c1f2007-07-10 10:28:42 +01001369config JFFS2_CMODE_FAVOURLZO
1370 bool "Favour LZO"
1371 help
1372 Tries all compressors and chooses the one which has the smallest
1373 result but gives some preference to LZO (which has faster
1374 decompression) at the expense of size.
1375
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376endchoice
1377
1378config CRAMFS
1379 tristate "Compressed ROM file system support (cramfs)"
David Howells93614012006-09-30 20:45:40 +02001380 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 select ZLIB_INFLATE
1382 help
1383 Saying Y here includes support for CramFs (Compressed ROM File
1384 System). CramFs is designed to be a simple, small, and compressed
1385 file system for ROM based embedded systems. CramFs is read-only,
1386 limited to 256MB file systems (with 16MB files), and doesn't support
1387 16/32 bits uid/gid, hard links and timestamps.
1388
1389 See <file:Documentation/filesystems/cramfs.txt> and
1390 <file:fs/cramfs/README> for further information.
1391
1392 To compile this as a module, choose M here: the module will be called
1393 cramfs. Note that the root file system (the one containing the
1394 directory /) cannot be compiled as a module.
1395
1396 If unsure, say N.
1397
1398config VXFS_FS
1399 tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
David Howells93614012006-09-30 20:45:40 +02001400 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401 help
1402 FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
1403 file system format. VERITAS VxFS(TM) is the standard file system
1404 of SCO UnixWare (and possibly others) and optionally available
1405 for Sunsoft Solaris, HP-UX and many other operating systems.
1406 Currently only readonly access is supported.
1407
1408 NOTE: the file system type as used by mount(1), mount(2) and
1409 fstab(5) is 'vxfs' as it describes the file system format, not
1410 the actual driver.
1411
1412 To compile this as a module, choose M here: the module will be
1413 called freevxfs. If unsure, say N.
1414
1415
1416config HPFS_FS
1417 tristate "OS/2 HPFS file system support"
David Howells93614012006-09-30 20:45:40 +02001418 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419 help
1420 OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
1421 is the file system used for organizing files on OS/2 hard disk
1422 partitions. Say Y if you want to be able to read files from and
1423 write files to an OS/2 HPFS partition on your hard drive. OS/2
1424 floppies however are in regular MSDOS format, so you don't need this
1425 option in order to be able to read them. Read
1426 <file:Documentation/filesystems/hpfs.txt>.
1427
1428 To compile this file system support as a module, choose M here: the
1429 module will be called hpfs. If unsure, say N.
1430
1431
1432
1433config QNX4FS_FS
1434 tristate "QNX4 file system support (read only)"
David Howells93614012006-09-30 20:45:40 +02001435 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436 help
1437 This is the file system used by the real-time operating systems
1438 QNX 4 and QNX 6 (the latter is also called QNX RTP).
1439 Further information is available at <http://www.qnx.com/>.
1440 Say Y if you intend to mount QNX hard disks or floppies.
1441 Unless you say Y to "QNX4FS read-write support" below, you will
1442 only be able to read these file systems.
1443
1444 To compile this file system support as a module, choose M here: the
1445 module will be called qnx4.
1446
1447 If you don't know whether you need it, then you don't need it:
1448 answer N.
1449
1450config QNX4FS_RW
1451 bool "QNX4FS write support (DANGEROUS)"
1452 depends on QNX4FS_FS && EXPERIMENTAL && BROKEN
1453 help
1454 Say Y if you want to test write support for QNX4 file systems.
1455
1456 It's currently broken, so for now:
1457 answer N.
1458
1459
1460
1461config SYSV_FS
1462 tristate "System V/Xenix/V7/Coherent file system support"
David Howells93614012006-09-30 20:45:40 +02001463 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464 help
1465 SCO, Xenix and Coherent are commercial Unix systems for Intel
1466 machines, and Version 7 was used on the DEC PDP-11. Saying Y
1467 here would allow you to read from their floppies and hard disk
1468 partitions.
1469
1470 If you have floppies or hard disk partitions like that, it is likely
1471 that they contain binaries from those other Unix systems; in order
Matt LaPlantecab00892006-10-03 22:36:44 +02001472 to run these binaries, you will want to install linux-abi which is
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473 a set of kernel modules that lets you run SCO, Xenix, Wyse,
1474 UnixWare, Dell Unix and System V programs under Linux. It is
1475 available via FTP (user: ftp) from
1476 <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
1477 NOTE: that will work only for binaries from Intel-based systems;
1478 PDP ones will have to wait until somebody ports Linux to -11 ;-)
1479
1480 If you only intend to mount files from some other Unix over the
1481 network using NFS, you don't need the System V file system support
1482 (but you need NFS file system support obviously).
1483
1484 Note that this option is generally not needed for floppies, since a
1485 good portable way to transport files and directories between unixes
1486 (and even other operating systems) is given by the tar program ("man
1487 tar" or preferably "info tar"). Note also that this option has
1488 nothing whatsoever to do with the option "System V IPC". Read about
1489 the System V file system in
1490 <file:Documentation/filesystems/sysv-fs.txt>.
1491 Saying Y here will enlarge your kernel by about 27 KB.
1492
1493 To compile this as a module, choose M here: the module will be called
1494 sysv.
1495
1496 If you haven't heard about all of this before, it's safe to say N.
1497
1498
1499
1500config UFS_FS
1501 tristate "UFS file system support (read only)"
David Howells93614012006-09-30 20:45:40 +02001502 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001503 help
1504 BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
1505 OpenBSD and NeXTstep) use a file system called UFS. Some System V
1506 Unixes can create and mount hard disk partitions and diskettes using
1507 this file system as well. Saying Y here will allow you to read from
1508 these partitions; if you also want to write to them, say Y to the
1509 experimental "UFS file system write support", below. Please read the
1510 file <file:Documentation/filesystems/ufs.txt> for more information.
1511
1512 The recently released UFS2 variant (used in FreeBSD 5.x) is
1513 READ-ONLY supported.
1514
1515 If you only intend to mount files from some other Unix over the
1516 network using NFS, you don't need the UFS file system support (but
1517 you need NFS file system support obviously).
1518
1519 Note that this option is generally not needed for floppies, since a
1520 good portable way to transport files and directories between unixes
1521 (and even other operating systems) is given by the tar program ("man
1522 tar" or preferably "info tar").
1523
1524 When accessing NeXTstep files, you may need to convert them from the
1525 NeXT character set to the Latin1 character set; use the program
1526 recode ("info recode") for this purpose.
1527
1528 To compile the UFS file system support as a module, choose M here: the
1529 module will be called ufs.
1530
1531 If you haven't heard about all of this before, it's safe to say N.
1532
1533config UFS_FS_WRITE
1534 bool "UFS file system write support (DANGEROUS)"
Evgeniy Dushistov5afb3142006-06-25 05:47:24 -07001535 depends on UFS_FS && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001536 help
1537 Say Y here if you want to try writing to UFS partitions. This is
1538 experimental, so you should back up your UFS partitions beforehand.
1539
Evgeniy Dushistovabf5d152006-06-25 05:47:24 -07001540config UFS_DEBUG
1541 bool "UFS debugging"
1542 depends on UFS_FS
1543 help
1544 If you are experiencing any problems with the UFS filesystem, say
1545 Y here. This will result in _many_ additional debugging messages to be
1546 written to the system log.
1547
Linus Torvalds1da177e2005-04-16 15:20:36 -07001548endmenu
1549
Jan Engelhardtea0985a2007-10-16 23:30:16 -07001550menuconfig NETWORK_FILESYSTEMS
1551 bool "Network File Systems"
1552 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -07001553 depends on NET
Jan Engelhardtea0985a2007-10-16 23:30:16 -07001554 ---help---
1555 Say Y here to get to see options for network filesystems and
1556 filesystem-related networking code, such as NFS daemon and
1557 RPCSEC security modules.
1558 This option alone does not add any kernel code.
1559
1560 If you say N, all options in this submenu will be skipped and
1561 disabled; if unsure, say Y here.
1562
1563if NETWORK_FILESYSTEMS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564
1565config NFS_FS
1566 tristate "NFS file system support"
1567 depends on INET
1568 select LOCKD
1569 select SUNRPC
Andreas Gruenbacherb7fa0552005-06-22 17:16:27 +00001570 select NFS_ACL_SUPPORT if NFS_V3_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001571 help
1572 If you are connected to some other (usually local) Unix computer
1573 (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
1574 on that computer (the NFS server) using the Network File Sharing
1575 protocol, say Y. "Mounting files" means that the client can access
1576 the files with usual UNIX commands as if they were sitting on the
1577 client's hard disk. For this to work, the server must run the
1578 programs nfsd and mountd (but does not need to have NFS file system
1579 support enabled in its kernel). NFS is explained in the Network
1580 Administrator's Guide, available from
1581 <http://www.tldp.org/docs.html#guide>, on its man page: "man
1582 nfs", and in the NFS-HOWTO.
1583
1584 A superior but less widely used alternative to NFS is provided by
1585 the Coda file system; see "Coda file system support" below.
1586
1587 If you say Y here, you should have said Y to TCP/IP networking also.
1588 This option would enlarge your kernel by about 27 KB.
1589
1590 To compile this file system support as a module, choose M here: the
1591 module will be called nfs.
1592
1593 If you are configuring a diskless machine which will mount its root
1594 file system over NFS at boot time, say Y here and to "Kernel
1595 level IP autoconfiguration" above and to "Root file system on NFS"
1596 below. You cannot compile this driver as a module in this case.
1597 There are two packages designed for booting diskless machines over
1598 the net: netboot, available from
1599 <http://ftp1.sourceforge.net/netboot/>, and Etherboot,
1600 available from <http://ftp1.sourceforge.net/etherboot/>.
1601
1602 If you don't know what all this is about, say N.
1603
1604config NFS_V3
1605 bool "Provide NFSv3 client support"
1606 depends on NFS_FS
1607 help
1608 Say Y here if you want your NFS client to be able to speak version
1609 3 of the NFS protocol.
1610
1611 If unsure, say Y.
1612
Andreas Gruenbacherb7fa0552005-06-22 17:16:27 +00001613config NFS_V3_ACL
1614 bool "Provide client support for the NFSv3 ACL protocol extension"
1615 depends on NFS_V3
1616 help
1617 Implement the NFSv3 ACL protocol extension for manipulating POSIX
1618 Access Control Lists. The server should also be compiled with
1619 the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option.
1620
1621 If unsure, say N.
1622
Linus Torvalds1da177e2005-04-16 15:20:36 -07001623config NFS_V4
1624 bool "Provide NFSv4 client support (EXPERIMENTAL)"
1625 depends on NFS_FS && EXPERIMENTAL
1626 select RPCSEC_GSS_KRB5
1627 help
1628 Say Y here if you want your NFS client to be able to speak the newer
1629 version 4 of the NFS protocol.
1630
1631 Note: Requires auxiliary userspace daemons which may be found on
1632 http://www.citi.umich.edu/projects/nfsv4/
1633
1634 If unsure, say N.
1635
1636config NFS_DIRECTIO
Chuck Lever026ed5c2006-09-20 14:33:07 -04001637 bool "Allow direct I/O on NFS files"
1638 depends on NFS_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001639 help
1640 This option enables applications to perform uncached I/O on files
1641 in NFS file systems using the O_DIRECT open() flag. When O_DIRECT
1642 is set for a file, its data is not cached in the system's page
1643 cache. Data is moved to and from user-level application buffers
1644 directly. Unlike local disk-based file systems, NFS O_DIRECT has
1645 no alignment restrictions.
1646
1647 Unless your program is designed to use O_DIRECT properly, you are
1648 much better off allowing the NFS client to manage data caching for
1649 you. Misusing O_DIRECT can cause poor server performance or network
1650 storms. This kernel build option defaults OFF to avoid exposing
1651 system administrators unwittingly to a potentially hazardous
1652 feature.
1653
1654 For more details on NFS O_DIRECT, see fs/nfs/direct.c.
1655
1656 If unsure, say N. This reduces the size of the NFS client, and
1657 causes open() to return EINVAL if a file residing in NFS is
1658 opened with the O_DIRECT flag.
1659
1660config NFSD
1661 tristate "NFS server support"
1662 depends on INET
1663 select LOCKD
1664 select SUNRPC
1665 select EXPORTFS
Herbert Xuf05e15b2006-06-26 00:25:39 -07001666 select NFSD_V2_ACL if NFSD_V3_ACL
1667 select NFS_ACL_SUPPORT if NFSD_V2_ACL
1668 select NFSD_TCP if NFSD_V4
1669 select CRYPTO_MD5 if NFSD_V4
1670 select CRYPTO if NFSD_V4
1671 select FS_POSIX_ACL if NFSD_V4
Linus Torvalds1da177e2005-04-16 15:20:36 -07001672 help
1673 If you want your Linux box to act as an NFS *server*, so that other
1674 computers on your local network which support NFS can access certain
1675 directories on your box transparently, you have two options: you can
1676 use the self-contained user space program nfsd, in which case you
1677 should say N here, or you can say Y and use the kernel based NFS
1678 server. The advantage of the kernel based solution is that it is
1679 faster.
1680
1681 In either case, you will need support software; the respective
1682 locations are given in the file <file:Documentation/Changes> in the
1683 NFS section.
1684
1685 If you say Y here, you will get support for version 2 of the NFS
1686 protocol (NFSv2). If you also want NFSv3, say Y to the next question
1687 as well.
1688
1689 Please read the NFS-HOWTO, available from
1690 <http://www.tldp.org/docs.html#howto>.
1691
1692 To compile the NFS server support as a module, choose M here: the
1693 module will be called nfsd. If unsure, say N.
1694
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001695config NFSD_V2_ACL
1696 bool
1697 depends on NFSD
1698
Linus Torvalds1da177e2005-04-16 15:20:36 -07001699config NFSD_V3
1700 bool "Provide NFSv3 server support"
1701 depends on NFSD
1702 help
1703 If you would like to include the NFSv3 server as well as the NFSv2
1704 server, say Y here. If unsure, say Y.
1705
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001706config NFSD_V3_ACL
1707 bool "Provide server support for the NFSv3 ACL protocol extension"
1708 depends on NFSD_V3
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001709 help
1710 Implement the NFSv3 ACL protocol extension for manipulating POSIX
1711 Access Control Lists on exported file systems. NFS clients should
1712 be compiled with the NFSv3 ACL protocol extension; see the
1713 CONFIG_NFS_V3_ACL option. If unsure, say N.
1714
Linus Torvalds1da177e2005-04-16 15:20:36 -07001715config NFSD_V4
1716 bool "Provide NFSv4 server support (EXPERIMENTAL)"
Trond Myklebust8cd69e12007-07-19 10:03:34 -04001717 depends on NFSD && NFSD_V3 && EXPERIMENTAL
J. Bruce Fields42ed95c2007-07-17 04:04:41 -07001718 select RPCSEC_GSS_KRB5
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 help
1720 If you would like to include the NFSv4 server as well as the NFSv2
1721 and NFSv3 servers, say Y here. This feature is experimental, and
1722 should only be used if you are interested in helping to test NFSv4.
1723 If unsure, say N.
1724
1725config NFSD_TCP
1726 bool "Provide NFS server over TCP support"
1727 depends on NFSD
1728 default y
1729 help
1730 If you want your NFS server to support TCP connections, say Y here.
1731 TCP connections usually perform better than the default UDP when
1732 the network is lossy or congested. If unsure, say Y.
1733
1734config ROOT_NFS
1735 bool "Root file system on NFS"
1736 depends on NFS_FS=y && IP_PNP
1737 help
1738 If you want your Linux box to mount its whole root file system (the
1739 one containing the directory /) from some other computer over the
1740 net via NFS (presumably because your box doesn't have a hard disk),
1741 say Y. Read <file:Documentation/nfsroot.txt> for details. It is
1742 likely that in this case, you also want to say Y to "Kernel level IP
1743 autoconfiguration" so that your box can discover its network address
1744 at boot time.
1745
1746 Most people say N here.
1747
1748config LOCKD
1749 tristate
1750
1751config LOCKD_V4
1752 bool
1753 depends on NFSD_V3 || NFS_V3
1754 default y
1755
1756config EXPORTFS
1757 tristate
1758
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001759config NFS_ACL_SUPPORT
1760 tristate
1761 select FS_POSIX_ACL
1762
1763config NFS_COMMON
1764 bool
1765 depends on NFSD || NFS_FS
1766 default y
1767
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768config SUNRPC
1769 tristate
1770
1771config SUNRPC_GSS
1772 tristate
1773
\"Talpey, Thomas\c3a57ed2007-09-10 13:49:15 -04001774config SUNRPC_XPRT_RDMA
1775 tristate "RDMA transport for sunrpc (EXPERIMENTAL)"
\"Talpey, Thomas\113632d2007-09-20 17:37:58 -04001776 depends on SUNRPC && INFINIBAND && EXPERIMENTAL
\"Talpey, Thomas\c3a57ed2007-09-10 13:49:15 -04001777 default m
1778 help
1779 Adds a client RPC transport for supporting kernel NFS over RDMA
1780 mounts, including Infiniband and iWARP. Experimental.
1781
Chuck Lever00a6e7b2007-03-29 16:48:33 -04001782config SUNRPC_BIND34
1783 bool "Support for rpcbind versions 3 & 4 (EXPERIMENTAL)"
1784 depends on SUNRPC && EXPERIMENTAL
1785 help
1786 Provides kernel support for querying rpcbind servers via versions 3
1787 and 4 of the rpcbind protocol. The kernel automatically falls back
1788 to version 2 if a remote rpcbind service does not support versions
1789 3 or 4.
1790
1791 If unsure, say N to get traditional behavior (version 2 rpcbind
1792 requests only).
1793
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794config RPCSEC_GSS_KRB5
1795 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
1796 depends on SUNRPC && EXPERIMENTAL
1797 select SUNRPC_GSS
1798 select CRYPTO
1799 select CRYPTO_MD5
1800 select CRYPTO_DES
Patrick McHardybcbaecb2006-10-25 16:49:36 +10001801 select CRYPTO_CBC
Linus Torvalds1da177e2005-04-16 15:20:36 -07001802 help
1803 Provides for secure RPC calls by means of a gss-api
1804 mechanism based on Kerberos V5. This is required for
1805 NFSv4.
1806
1807 Note: Requires an auxiliary userspace daemon which may be found on
1808 http://www.citi.umich.edu/projects/nfsv4/
1809
1810 If unsure, say N.
1811
1812config RPCSEC_GSS_SPKM3
1813 tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
1814 depends on SUNRPC && EXPERIMENTAL
1815 select SUNRPC_GSS
1816 select CRYPTO
1817 select CRYPTO_MD5
1818 select CRYPTO_DES
J. Bruce Fieldsdf6db302006-03-20 23:25:10 -05001819 select CRYPTO_CAST5
Patrick McHardybcbaecb2006-10-25 16:49:36 +10001820 select CRYPTO_CBC
Linus Torvalds1da177e2005-04-16 15:20:36 -07001821 help
1822 Provides for secure RPC calls by means of a gss-api
1823 mechanism based on the SPKM3 public-key mechanism.
1824
1825 Note: Requires an auxiliary userspace daemon which may be found on
1826 http://www.citi.umich.edu/projects/nfsv4/
1827
1828 If unsure, say N.
1829
1830config SMB_FS
1831 tristate "SMB file system support (to mount Windows shares etc.)"
1832 depends on INET
1833 select NLS
1834 help
1835 SMB (Server Message Block) is the protocol Windows for Workgroups
1836 (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
1837 files and printers over local networks. Saying Y here allows you to
1838 mount their file systems (often called "shares" in this context) and
1839 access them just like any other Unix directory. Currently, this
1840 works only if the Windows machines use TCP/IP as the underlying
1841 transport protocol, and not NetBEUI. For details, read
1842 <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
1843 available from <http://www.tldp.org/docs.html#howto>.
1844
1845 Note: if you just want your box to act as an SMB *server* and make
1846 files and printing services available to Windows clients (which need
1847 to have a TCP/IP stack), you don't need to say Y here; you can use
1848 the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
1849 for that.
1850
1851 General information about how to connect Linux, Windows machines and
1852 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1853
1854 To compile the SMB support as a module, choose M here: the module will
1855 be called smbfs. Most people say N, however.
1856
1857config SMB_NLS_DEFAULT
1858 bool "Use a default NLS"
1859 depends on SMB_FS
1860 help
1861 Enabling this will make smbfs use nls translations by default. You
1862 need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
1863 settings and you need to give the default nls for the SMB server as
1864 CONFIG_SMB_NLS_REMOTE.
1865
1866 The nls settings can be changed at mount time, if your smbmount
1867 supports that, using the codepage and iocharset parameters.
1868
1869 smbmount from samba 2.2.0 or later supports this.
1870
1871config SMB_NLS_REMOTE
1872 string "Default Remote NLS Option"
1873 depends on SMB_NLS_DEFAULT
1874 default "cp437"
1875 help
1876 This setting allows you to specify a default value for which
1877 codepage the server uses. If this field is left blank no
1878 translations will be done by default. The local codepage/charset
1879 default to CONFIG_NLS_DEFAULT.
1880
1881 The nls settings can be changed at mount time, if your smbmount
1882 supports that, using the codepage and iocharset parameters.
1883
1884 smbmount from samba 2.2.0 or later supports this.
1885
1886config CIFS
1887 tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)"
1888 depends on INET
1889 select NLS
1890 help
1891 This is the client VFS module for the Common Internet File System
1892 (CIFS) protocol which is the successor to the Server Message Block
1893 (SMB) protocol, the native file sharing mechanism for most early
1894 PC operating systems. The CIFS protocol is fully supported by
1895 file servers such as Windows 2000 (including Windows 2003, NT 4
1896 and Windows XP) as well by Samba (which provides excellent CIFS
Steve Frenchec58ef02005-11-04 09:44:33 -08001897 server support for Linux and many other operating systems). Limited
Steve French8af18972007-02-14 04:42:51 +00001898 support for OS/2 and Windows ME and similar servers is provided as well.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899
1900 The intent of the cifs module is to provide an advanced
Steve French8af18972007-02-14 04:42:51 +00001901 network file system client for mounting to CIFS compliant servers,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001902 including support for dfs (hierarchical name space), secure per-user
1903 session establishment, safe distributed caching (oplock), optional
Steve French8af18972007-02-14 04:42:51 +00001904 packet signing, Unicode and other internationalization improvements.
1905 If you need to mount to Samba or Windows from this machine, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906
1907config CIFS_STATS
1908 bool "CIFS statistics"
1909 depends on CIFS
1910 help
1911 Enabling this option will cause statistics for each server share
1912 mounted by the cifs client to be displayed in /proc/fs/cifs/Stats
1913
Steve Frenchec58ef02005-11-04 09:44:33 -08001914config CIFS_STATS2
Steve French39798772006-05-31 22:40:51 +00001915 bool "Extended statistics"
Steve Frenchec58ef02005-11-04 09:44:33 -08001916 depends on CIFS_STATS
1917 help
1918 Enabling this option will allow more detailed statistics on SMB
1919 request timing to be displayed in /proc/fs/cifs/DebugData and also
1920 allow optional logging of slow responses to dmesg (depending on the
1921 value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details).
1922 These additional statistics may have a minor effect on performance
1923 and memory utilization.
1924
1925 Unless you are a developer or are doing network performance analysis
1926 or tuning, say N.
1927
Steve French39798772006-05-31 22:40:51 +00001928config CIFS_WEAK_PW_HASH
1929 bool "Support legacy servers which use weaker LANMAN security"
1930 depends on CIFS
1931 help
1932 Modern CIFS servers including Samba and most Windows versions
1933 (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos)
1934 security mechanisms. These hash the password more securely
1935 than the mechanisms used in the older LANMAN version of the
1936 SMB protocol needed to establish sessions with old SMB servers.
1937
1938 Enabling this option allows the cifs module to mount to older
1939 LANMAN based servers such as OS/2 and Windows 95, but such
1940 mounts may be less secure than mounts using NTLM or more recent
1941 security mechanisms if you are on a public network. Unless you
1942 have a need to access old SMB servers (and are on a private
1943 network) you probably want to say N. Even if this support
1944 is enabled in the kernel build, they will not be used
1945 automatically. At runtime LANMAN mounts are disabled but
1946 can be set to required (or optional) either in
1947 /proc/fs/cifs (see fs/cifs/README for more detail) or via an
1948 option on the mount command. This support is disabled by
1949 default in order to reduce the possibility of a downgrade
1950 attack.
1951
1952 If unsure, say N.
1953
Linus Torvalds1da177e2005-04-16 15:20:36 -07001954config CIFS_XATTR
Steve Frenchec58ef02005-11-04 09:44:33 -08001955 bool "CIFS extended attributes"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001956 depends on CIFS
1957 help
1958 Extended attributes are name:value pairs associated with inodes by
1959 the kernel or by users (see the attr(5) manual page, or visit
1960 <http://acl.bestbits.at/> for details). CIFS maps the name of
1961 extended attributes beginning with the user namespace prefix
1962 to SMB/CIFS EAs. EAs are stored on Windows servers without the
1963 user namespace prefix, but their names are seen by Linux cifs clients
1964 prefaced by the user namespace prefix. The system namespace
1965 (used by some filesystems to store ACLs) is not supported at
1966 this time.
Steve Frenchec58ef02005-11-04 09:44:33 -08001967
Linus Torvalds1da177e2005-04-16 15:20:36 -07001968 If unsure, say N.
1969
1970config CIFS_POSIX
Steve Frenchec58ef02005-11-04 09:44:33 -08001971 bool "CIFS POSIX Extensions"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001972 depends on CIFS_XATTR
1973 help
1974 Enabling this option will cause the cifs client to attempt to
1975 negotiate a newer dialect with servers, such as Samba 3.0.5
1976 or later, that optionally can handle more POSIX like (rather
1977 than Windows like) file behavior. It also enables
1978 support for POSIX ACLs (getfacl and setfacl) to servers
1979 (such as Samba 3.10 and later) which can negotiate
1980 CIFS POSIX ACL support. If unsure, say N.
1981
Steve French39798772006-05-31 22:40:51 +00001982config CIFS_DEBUG2
Steve French3856a9d2006-06-01 19:38:46 +00001983 bool "Enable additional CIFS debugging routines"
Steve French8ba10ab2006-07-08 02:17:40 +00001984 depends on CIFS
Steve French39798772006-05-31 22:40:51 +00001985 help
1986 Enabling this option adds a few more debugging routines
1987 to the cifs code which slightly increases the size of
1988 the cifs module and can cause additional logging of debug
1989 messages in some error paths, slowing performance. This
1990 option can be turned off unless you are debugging
1991 cifs problems. If unsure, say N.
1992
Linus Torvalds1da177e2005-04-16 15:20:36 -07001993config CIFS_EXPERIMENTAL
1994 bool "CIFS Experimental Features (EXPERIMENTAL)"
Steve Frenchcb9dbff2005-11-02 11:37:15 -08001995 depends on CIFS && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001996 help
Steve Frenchec58ef02005-11-04 09:44:33 -08001997 Enables cifs features under testing. These features are
Steve French8af18972007-02-14 04:42:51 +00001998 experimental and currently include DFS support and directory
1999 change notification ie fcntl(F_DNOTIFY), as well as the upcall
2000 mechanism which will be used for Kerberos session negotiation
2001 and uid remapping. Some of these features also may depend on
2002 setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental
2003 (which is disabled by default). See the file fs/cifs/README
2004 for more details. If unsure, say N.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002005
Steve Frencha2653eb2005-11-10 15:33:38 -08002006config CIFS_UPCALL
Steve French39798772006-05-31 22:40:51 +00002007 bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
Steve Frencha2653eb2005-11-10 15:33:38 -08002008 depends on CIFS_EXPERIMENTAL
Andrew Morton230a0392006-10-12 15:07:55 +00002009 depends on CONNECTOR
Steve Frencha2653eb2005-11-10 15:33:38 -08002010 help
2011 Enables an upcall mechanism for CIFS which will be used to contact
2012 userspace helper utilities to provide SPNEGO packaged Kerberos
2013 tickets which are needed to mount to certain secure servers
Steve French1b397f42005-11-10 19:36:39 -08002014 (for which more secure Kerberos authentication is required). If
2015 unsure, say N.
Steve Frencha2653eb2005-11-10 15:33:38 -08002016
Linus Torvalds1da177e2005-04-16 15:20:36 -07002017config NCP_FS
2018 tristate "NCP file system support (to mount NetWare volumes)"
2019 depends on IPX!=n || INET
2020 help
2021 NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
2022 used by Novell NetWare clients to talk to file servers. It is to
2023 IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you
2024 to mount NetWare file server volumes and to access them just like
2025 any other Unix directory. For details, please read the file
2026 <file:Documentation/filesystems/ncpfs.txt> in the kernel source and
2027 the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
2028
2029 You do not have to say Y here if you want your Linux box to act as a
2030 file *server* for Novell NetWare clients.
2031
2032 General information about how to connect Linux, Windows machines and
2033 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
2034
2035 To compile this as a module, choose M here: the module will be called
2036 ncpfs. Say N unless you are connected to a Novell network.
2037
2038source "fs/ncpfs/Kconfig"
2039
2040config CODA_FS
2041 tristate "Coda file system support (advanced network fs)"
2042 depends on INET
2043 help
2044 Coda is an advanced network file system, similar to NFS in that it
2045 enables you to mount file systems of a remote server and access them
2046 with regular Unix commands as if they were sitting on your hard
2047 disk. Coda has several advantages over NFS: support for
2048 disconnected operation (e.g. for laptops), read/write server
2049 replication, security model for authentication and encryption,
2050 persistent client caches and write back caching.
2051
2052 If you say Y here, your Linux box will be able to act as a Coda
2053 *client*. You will need user level code as well, both for the
2054 client and server. Servers are currently user level, i.e. they need
2055 no kernel support. Please read
2056 <file:Documentation/filesystems/coda.txt> and check out the Coda
2057 home page <http://www.coda.cs.cmu.edu/>.
2058
2059 To compile the coda client support as a module, choose M here: the
2060 module will be called coda.
2061
2062config CODA_FS_OLD_API
2063 bool "Use 96-bit Coda file identifiers"
2064 depends on CODA_FS
2065 help
2066 A new kernel-userspace API had to be introduced for Coda v6.0
2067 to support larger 128-bit file identifiers as needed by the
2068 new realms implementation.
2069
2070 However this new API is not backward compatible with older
2071 clients. If you really need to run the old Coda userspace
2072 cache manager then say Y.
2073
2074 For most cases you probably want to say N.
2075
2076config AFS_FS
David Howells64aaa4f2006-11-16 01:19:27 -08002077 tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002078 depends on INET && EXPERIMENTAL
David Howells08e0e7c2007-04-26 15:55:03 -07002079 select AF_RXRPC
Linus Torvalds1da177e2005-04-16 15:20:36 -07002080 help
2081 If you say Y here, you will get an experimental Andrew File System
2082 driver. It currently only supports unsecured read-only AFS access.
2083
Matt LaPlantecc2e2762006-10-03 22:22:29 +02002084 See <file:Documentation/filesystems/afs.txt> for more information.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002085
2086 If unsure, say N.
2087
David Howells08e0e7c2007-04-26 15:55:03 -07002088config AFS_DEBUG
2089 bool "AFS dynamic debugging"
2090 depends on AFS_FS
2091 help
2092 Say Y here to make runtime controllable debugging messages appear.
2093
2094 See <file:Documentation/filesystems/afs.txt> for more information.
2095
2096 If unsure, say N.
2097
Eric Van Hensbergen93fa58c2005-09-09 13:04:18 -07002098config 9P_FS
2099 tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
Latchesar Ionkovbd238fb2007-07-10 17:57:28 -05002100 depends on INET && NET_9P && EXPERIMENTAL
Eric Van Hensbergen93fa58c2005-09-09 13:04:18 -07002101 help
2102 If you say Y here, you will get experimental support for
2103 Plan 9 resource sharing via the 9P2000 protocol.
2104
2105 See <http://v9fs.sf.net> for more information.
2106
2107 If unsure, say N.
2108
Jan Engelhardtea0985a2007-10-16 23:30:16 -07002109endif # NETWORK_FILESYSTEMS
Linus Torvalds1da177e2005-04-16 15:20:36 -07002110
David Howells93614012006-09-30 20:45:40 +02002111if BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112menu "Partition Types"
2113
2114source "fs/partitions/Kconfig"
2115
2116endmenu
David Howells93614012006-09-30 20:45:40 +02002117endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118
2119source "fs/nls/Kconfig"
David Teiglande7fd4172006-01-18 09:30:29 +00002120source "fs/dlm/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121
2122endmenu
2123