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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
Andreas Dilger717d50e2007-10-16 18:38:25 -0400143 select CRC16
Mingming Caodab291a2006-10-11 01:21:01 -0700144 help
Mingming Cao02ea2102006-10-11 01:20:56 -0700145 Ext4dev is a predecessor filesystem of the next generation
146 extended fs ext4, based on ext3 filesystem code. It will be
147 renamed ext4 fs later, once ext4dev is mature and stabilized.
148
Mingming Caodab291a2006-10-11 01:21:01 -0700149 Unlike the change from ext2 filesystem to ext3 filesystem,
150 the on-disk format of ext4dev is not the same as ext3 any more:
Mingming Cao02ea2102006-10-11 01:20:56 -0700151 it is based on extent maps and it supports 48-bit physical block
Mingming Caodab291a2006-10-11 01:21:01 -0700152 numbers. These combined on-disk format changes will allow
Mingming Cao02ea2102006-10-11 01:20:56 -0700153 ext4dev/ext4 to handle more than 16 TB filesystem volumes --
154 a hard limit that ext3 cannot overcome without changing the
Mingming Caodab291a2006-10-11 01:21:01 -0700155 on-disk format.
Mingming Cao02ea2102006-10-11 01:20:56 -0700156
157 Other than extent maps and 48-bit block numbers, ext4dev also is
Mingming Caodab291a2006-10-11 01:21:01 -0700158 likely to have other new features such as persistent preallocation,
Mingming Cao02ea2102006-10-11 01:20:56 -0700159 high resolution time stamps, and larger file support etc. These
Mingming Caodab291a2006-10-11 01:21:01 -0700160 features will be added to ext4dev gradually.
Mingming Cao02ea2102006-10-11 01:20:56 -0700161
162 To compile this file system support as a module, choose M here. The
Jan Engelhardtd23edbd2006-12-12 19:07:45 +0100163 module will be called ext4dev.
Mingming Cao02ea2102006-10-11 01:20:56 -0700164
165 If unsure, say N.
166
167config EXT4DEV_FS_XATTR
168 bool "Ext4dev extended attributes"
169 depends on EXT4DEV_FS
170 default y
171 help
172 Extended attributes are name:value pairs associated with inodes by
173 the kernel or by users (see the attr(5) manual page, or visit
174 <http://acl.bestbits.at/> for details).
175
176 If unsure, say N.
177
178 You need this for POSIX ACL support on ext4dev/ext4.
179
180config EXT4DEV_FS_POSIX_ACL
181 bool "Ext4dev POSIX Access Control Lists"
182 depends on EXT4DEV_FS_XATTR
183 select FS_POSIX_ACL
184 help
185 POSIX Access Control Lists (ACLs) support permissions for users and
186 groups beyond the owner/group/world scheme.
187
188 To learn more about Access Control Lists, visit the POSIX ACLs for
189 Linux website <http://acl.bestbits.at/>.
190
191 If you don't know what Access Control Lists are, say N
192
193config EXT4DEV_FS_SECURITY
194 bool "Ext4dev Security Labels"
195 depends on EXT4DEV_FS_XATTR
196 help
197 Security labels support alternative access control models
198 implemented by security modules like SELinux. This option
199 enables an extended attribute handler for file security
200 labels in the ext4dev/ext4 filesystem.
201
202 If you are not using a security module that requires using
203 extended attributes for file security labels, say N.
204
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205config JBD
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 tristate
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 help
Matt LaPlantecc2e2762006-10-03 22:22:29 +0200208 This is a generic journalling layer for block devices. It is
Mark Fashehb4e40a52005-12-15 14:31:24 -0800209 currently used by the ext3 and OCFS2 file systems, but it could
210 also be used to add journal support to other file systems or block
211 devices such as RAID or LVM.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212
Mark Fashehb4e40a52005-12-15 14:31:24 -0800213 If you are using the ext3 or OCFS2 file systems, you need to
214 say Y here. If you are not using ext3 OCFS2 then you will probably
215 want to say N.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216
217 To compile this device as a module, choose M here: the module will be
Mark Fashehb4e40a52005-12-15 14:31:24 -0800218 called jbd. If you are compiling ext3 or OCFS2 into the kernel,
219 you cannot compile this code as a module.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220
221config JBD_DEBUG
222 bool "JBD (ext3) debugging support"
Jose R. Santosc2a91592007-10-18 23:39:22 -0700223 depends on JBD && DEBUG_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 help
225 If you are using the ext3 journaled file system (or potentially any
226 other file system/device using JBD), this option allows you to
227 enable debugging output while the system is running, in order to
228 help track down any problems you are having. By default the
229 debugging output will be turned off.
230
231 If you select Y here, then you will be able to turn on debugging
Jose R. Santosc2a91592007-10-18 23:39:22 -0700232 with "echo N > /sys/kernel/debug/jbd/jbd-debug", where N is a
233 number between 1 and 5, the higher the number, the more debugging
234 output is generated. To turn debugging off again, do
235 "echo 0 > /sys/kernel/debug/jbd/jbd-debug".
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236
Mingming Caodab291a2006-10-11 01:21:01 -0700237config JBD2
238 tristate
Girish Shilamkar818d2762008-01-28 23:58:27 -0500239 select CRC32
Mingming Caodab291a2006-10-11 01:21:01 -0700240 help
241 This is a generic journaling layer for block devices that support
242 both 32-bit and 64-bit block numbers. It is currently used by
243 the ext4dev/ext4 filesystem, but it could also be used to add
244 journal support to other file systems or block devices such
245 as RAID or LVM.
246
247 If you are using ext4dev/ext4, you need to say Y here. If you are not
248 using ext4dev/ext4 then you will probably want to say N.
249
250 To compile this device as a module, choose M here. The module will be
251 called jbd2. If you are compiling ext4dev/ext4 into the kernel,
252 you cannot compile this code as a module.
253
254config JBD2_DEBUG
255 bool "JBD2 (ext4dev/ext4) debugging support"
Jose R. Santos0f49d5d2007-07-18 08:50:18 -0400256 depends on JBD2 && DEBUG_FS
Mingming Caodab291a2006-10-11 01:21:01 -0700257 help
258 If you are using the ext4dev/ext4 journaled file system (or
259 potentially any other filesystem/device using JBD2), this option
260 allows you to enable debugging output while the system is running,
261 in order to help track down any problems you are having.
262 By default, the debugging output will be turned off.
263
264 If you select Y here, then you will be able to turn on debugging
Jose R. Santos0f49d5d2007-07-18 08:50:18 -0400265 with "echo N > /sys/kernel/debug/jbd2/jbd2-debug", where N is a
266 number between 1 and 5. The higher the number, the more debugging
267 output is generated. To turn debugging off again, do
268 "echo 0 > /sys/kernel/debug/jbd2/jbd2-debug".
Mingming Caodab291a2006-10-11 01:21:01 -0700269
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270config FS_MBCACHE
Mingming Cao02ea2102006-10-11 01:20:56 -0700271# Meta block cache for Extended Attributes (ext2/ext3/ext4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272 tristate
Mingming Cao02ea2102006-10-11 01:20:56 -0700273 depends on EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4DEV_FS_XATTR
274 default y if EXT2_FS=y || EXT3_FS=y || EXT4DEV_FS=y
275 default m if EXT2_FS=m || EXT3_FS=m || EXT4DEV_FS=m
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276
277config REISERFS_FS
278 tristate "Reiserfs support"
279 help
280 Stores not just filenames but the files themselves in a balanced
Matt LaPlantecc2e2762006-10-03 22:22:29 +0200281 tree. Uses journalling.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282
283 Balanced trees are more efficient than traditional file system
284 architectural foundations.
285
286 In general, ReiserFS is as fast as ext2, but is very efficient with
287 large directories and small files. Additional patches are needed
288 for NFS and quotas, please see <http://www.namesys.com/> for links.
289
290 It is more easily extended to have features currently found in
291 database and keyword search systems than block allocation based file
292 systems are. The next version will be so extended, and will support
293 plugins consistent with our motto ``It takes more than a license to
294 make source code open.''
295
296 Read <http://www.namesys.com/> to learn more about reiserfs.
297
298 Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com.
299
300 If you like it, you can pay us to add new features to it that you
301 need, buy a support contract, or pay us to port it to another OS.
302
303config REISERFS_CHECK
304 bool "Enable reiserfs debug mode"
305 depends on REISERFS_FS
306 help
307 If you set this to Y, then ReiserFS will perform every check it can
308 possibly imagine of its internal consistency throughout its
309 operation. It will also go substantially slower. More than once we
310 have forgotten that this was on, and then gone despondent over the
311 latest benchmarks.:-) Use of this option allows our team to go all
312 out in checking for consistency when debugging without fear of its
313 effect on end users. If you are on the verge of sending in a bug
314 report, say Y and you might get a useful error message. Almost
315 everyone should say N.
316
317config REISERFS_PROC_INFO
318 bool "Stats in /proc/fs/reiserfs"
Randy Dunlap880ebdc2007-05-08 00:26:59 -0700319 depends on REISERFS_FS && PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 help
321 Create under /proc/fs/reiserfs a hierarchy of files, displaying
322 various ReiserFS statistics and internal data at the expense of
323 making your kernel or module slightly larger (+8 KB). This also
324 increases the amount of kernel memory required for each mount.
325 Almost everyone but ReiserFS developers and people fine-tuning
326 reiserfs or tracing problems should say N.
327
328config REISERFS_FS_XATTR
329 bool "ReiserFS extended attributes"
330 depends on REISERFS_FS
331 help
332 Extended attributes are name:value pairs associated with inodes by
333 the kernel or by users (see the attr(5) manual page, or visit
334 <http://acl.bestbits.at/> for details).
335
336 If unsure, say N.
337
338config REISERFS_FS_POSIX_ACL
339 bool "ReiserFS POSIX Access Control Lists"
340 depends on REISERFS_FS_XATTR
Andreas Gruenbacherb84c2152005-07-07 17:56:57 -0700341 select FS_POSIX_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 help
343 Posix Access Control Lists (ACLs) support permissions for users and
344 groups beyond the owner/group/world scheme.
345
346 To learn more about Access Control Lists, visit the Posix ACLs for
347 Linux website <http://acl.bestbits.at/>.
348
349 If you don't know what Access Control Lists are, say N
350
351config REISERFS_FS_SECURITY
352 bool "ReiserFS Security Labels"
353 depends on REISERFS_FS_XATTR
354 help
355 Security labels support alternative access control models
356 implemented by security modules like SELinux. This option
357 enables an extended attribute handler for file security
358 labels in the ReiserFS filesystem.
359
360 If you are not using a security module that requires using
361 extended attributes for file security labels, say N.
362
363config JFS_FS
364 tristate "JFS filesystem support"
365 select NLS
366 help
367 This is a port of IBM's Journaled Filesystem . More information is
368 available in the file <file:Documentation/filesystems/jfs.txt>.
369
370 If you do not intend to use the JFS filesystem, say N.
371
372config JFS_POSIX_ACL
373 bool "JFS POSIX Access Control Lists"
374 depends on JFS_FS
Andreas Gruenbacherb84c2152005-07-07 17:56:57 -0700375 select FS_POSIX_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 help
377 Posix Access Control Lists (ACLs) support permissions for users and
378 groups beyond the owner/group/world scheme.
379
380 To learn more about Access Control Lists, visit the Posix ACLs for
381 Linux website <http://acl.bestbits.at/>.
382
383 If you don't know what Access Control Lists are, say N
384
385config JFS_SECURITY
386 bool "JFS Security Labels"
387 depends on JFS_FS
388 help
389 Security labels support alternative access control models
390 implemented by security modules like SELinux. This option
391 enables an extended attribute handler for file security
392 labels in the jfs filesystem.
393
394 If you are not using a security module that requires using
395 extended attributes for file security labels, say N.
396
397config JFS_DEBUG
398 bool "JFS debugging"
399 depends on JFS_FS
400 help
401 If you are experiencing any problems with the JFS filesystem, say
402 Y here. This will result in additional debugging messages to be
403 written to the system log. Under normal circumstances, this
404 results in very little overhead.
405
406config JFS_STATISTICS
407 bool "JFS statistics"
408 depends on JFS_FS
409 help
410 Enabling this option will cause statistics from the JFS file system
411 to be made available to the user in the /proc/fs/jfs/ directory.
412
413config FS_POSIX_ACL
414# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs)
415#
416# NOTE: you can implement Posix ACLs without these helpers (XFS does).
417# Never use this symbol for ifdefs.
418#
419 bool
Andreas Gruenbacherb84c2152005-07-07 17:56:57 -0700420 default n
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421
422source "fs/xfs/Kconfig"
David Teiglandf7825dc2006-01-16 16:43:37 +0000423source "fs/gfs2/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424
Mark Fashehb4e40a52005-12-15 14:31:24 -0800425config OCFS2_FS
Mark Fasheh02ed8412006-09-14 10:28:06 -0700426 tristate "OCFS2 file system support"
427 depends on NET && SYSFS
Mark Fashehb4e40a52005-12-15 14:31:24 -0800428 select CONFIGFS_FS
429 select JBD
430 select CRC32
Mark Fashehb4e40a52005-12-15 14:31:24 -0800431 help
432 OCFS2 is a general purpose extent based shared disk cluster file
433 system with many similarities to ext3. It supports 64 bit inode
434 numbers, and has automatically extending metadata groups which may
435 also make it attractive for non-clustered use.
436
437 You'll want to install the ocfs2-tools package in order to at least
438 get "mount.ocfs2".
439
440 Project web page: http://oss.oracle.com/projects/ocfs2
441 Tools web page: http://oss.oracle.com/projects/ocfs2-tools
442 OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/
443
Mark Fasheh1252c432007-10-30 12:09:03 -0700444 For more information on OCFS2, see the file
445 <file:Documentation/filesystems/ocfs2.txt>.
Mark Fashehb4e40a52005-12-15 14:31:24 -0800446
Joel Becker9341d222008-03-04 17:58:56 -0800447config OCFS2_FS_O2CB
448 tristate "O2CB Kernelspace Clustering"
449 depends on OCFS2_FS
450 default y
451 help
452 OCFS2 includes a simple kernelspace clustering package, the OCFS2
453 Cluster Base. It only requires a very small userspace component
454 to configure it. This comes with the standard ocfs2-tools package.
455 O2CB is limited to maintaining a cluster for OCFS2 file systems.
456 It cannot manage any other cluster applications.
457
458 It is always safe to say Y here, as the clustering method is
459 run-time selectable.
460
461config OCFS2_FS_USERSPACE_CLUSTER
462 tristate "OCFS2 Userspace Clustering"
463 depends on OCFS2_FS && DLM
464 default y
465 help
466 This option will allow OCFS2 to use userspace clustering services
467 in conjunction with the DLM in fs/dlm. If you are using a
468 userspace cluster manager, say Y here.
469
470 It is safe to say Y, as the clustering method is run-time
471 selectable.
472
Joel Becker2b388c62006-05-10 18:28:59 -0700473config OCFS2_DEBUG_MASKLOG
474 bool "OCFS2 logging support"
475 depends on OCFS2_FS
476 default y
477 help
478 The ocfs2 filesystem has an extensive logging system. The system
479 allows selection of events to log via files in /sys/o2cb/logmask/.
480 This option will enlarge your kernel, but it allows debugging of
481 ocfs2 filesystem issues.
482
Jan Kara5a58c3e2007-11-13 19:59:33 +0100483config OCFS2_DEBUG_FS
484 bool "OCFS2 expensive checks"
485 depends on OCFS2_FS
486 default n
487 help
488 This option will enable expensive consistency checks. Enable
489 this option for debugging only as it is likely to decrease
490 performance of the filesystem.
491
Randy Dunlap25fad942008-02-07 00:15:16 -0800492endif # BLOCK
493
494config DNOTIFY
495 bool "Dnotify support"
496 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497 help
Randy Dunlap25fad942008-02-07 00:15:16 -0800498 Dnotify is a directory-based per-fd file change notification system
499 that uses signals to communicate events to user-space. There exist
500 superior alternatives, but some applications may still rely on
501 dnotify.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502
Randy Dunlap25fad942008-02-07 00:15:16 -0800503 If unsure, say Y.
David Howells93614012006-09-30 20:45:40 +0200504
Robert Love0eeca282005-07-12 17:06:03 -0400505config INOTIFY
506 bool "Inotify file change notification support"
507 default y
508 ---help---
Amy Griffis2d9048e2006-06-01 13:10:59 -0700509 Say Y here to enable inotify support. Inotify is a file change
510 notification system and a replacement for dnotify. Inotify fixes
511 numerous shortcomings in dnotify and introduces several new features
512 including multiple file events, one-shot support, and unmount
Robert Love3de11742005-08-04 13:07:08 -0700513 notification.
514
Dirk Hohndele4031492007-10-30 13:37:19 -0700515 For more information, see <file:Documentation/filesystems/inotify.txt>
Robert Love0eeca282005-07-12 17:06:03 -0400516
517 If unsure, say Y.
518
Amy Griffis2d9048e2006-06-01 13:10:59 -0700519config INOTIFY_USER
520 bool "Inotify support for userspace"
521 depends on INOTIFY
522 default y
523 ---help---
524 Say Y here to enable inotify support for userspace, including the
525 associated system calls. Inotify allows monitoring of both files and
526 directories via a single open fd. Events are read from the file
527 descriptor, which is also select()- and poll()-able.
528
Dirk Hohndele4031492007-10-30 13:37:19 -0700529 For more information, see <file:Documentation/filesystems/inotify.txt>
Amy Griffis2d9048e2006-06-01 13:10:59 -0700530
531 If unsure, say Y.
532
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533config QUOTA
534 bool "Quota support"
535 help
536 If you say Y here, you will be able to set per user limits for disk
537 usage (also called disk quotas). Currently, it works for the
538 ext2, ext3, and reiserfs file system. ext3 also supports journalled
539 quotas for which you don't need to run quotacheck(8) after an unclean
Adrian Bunk919532a2005-09-06 15:17:22 -0700540 shutdown.
541 For further details, read the Quota mini-HOWTO, available from
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542 <http://www.tldp.org/docs.html#howto>, or the documentation provided
543 with the quota tools. Probably the quota support is only useful for
544 multi user systems. If unsure, say N.
545
Jan Kara8e893462007-10-16 23:29:31 -0700546config QUOTA_NETLINK_INTERFACE
547 bool "Report quota messages through netlink interface"
548 depends on QUOTA && NET
549 help
550 If you say Y here, quota warnings (about exceeding softlimit, reaching
551 hardlimit, etc.) will be reported through netlink interface. If unsure,
552 say Y.
553
554config PRINT_QUOTA_WARNING
555 bool "Print quota warnings to console (OBSOLETE)"
556 depends on QUOTA
557 default y
558 help
559 If you say Y here, quota warnings (about exceeding softlimit, reaching
560 hardlimit, etc.) will be printed to the process' controlling terminal.
561 Note that this behavior is currently deprecated and may go away in
562 future. Please use notification via netlink socket instead.
563
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564config QFMT_V1
565 tristate "Old quota format support"
566 depends on QUOTA
567 help
568 This quota format was (is) used by kernels earlier than 2.4.22. If
569 you have quota working and you don't want to convert to new quota
570 format say Y here.
571
572config QFMT_V2
573 tristate "Quota format v2 support"
574 depends on QUOTA
575 help
576 This quota format allows using quotas with 32-bit UIDs/GIDs. If you
Adrian Bunk919532a2005-09-06 15:17:22 -0700577 need this functionality say Y here.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578
579config QUOTACTL
580 bool
581 depends on XFS_QUOTA || QUOTA
582 default y
583
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584config AUTOFS_FS
585 tristate "Kernel automounter support"
586 help
587 The automounter is a tool to automatically mount remote file systems
588 on demand. This implementation is partially kernel-based to reduce
589 overhead in the already-mounted case; this is unlike the BSD
590 automounter (amd), which is a pure user space daemon.
591
592 To use the automounter you need the user-space tools from the autofs
593 package; you can find the location in <file:Documentation/Changes>.
594 You also want to answer Y to "NFS file system support", below.
595
596 If you want to use the newer version of the automounter with more
597 features, say N here and say Y to "Kernel automounter v4 support",
598 below.
599
600 To compile this support as a module, choose M here: the module will be
601 called autofs.
602
603 If you are not a part of a fairly large, distributed network, you
604 probably do not need an automounter, and can say N here.
605
606config AUTOFS4_FS
607 tristate "Kernel automounter version 4 support (also supports v3)"
608 help
609 The automounter is a tool to automatically mount remote file systems
610 on demand. This implementation is partially kernel-based to reduce
611 overhead in the already-mounted case; this is unlike the BSD
612 automounter (amd), which is a pure user space daemon.
613
614 To use the automounter you need the user-space tools from
615 <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
616 want to answer Y to "NFS file system support", below.
617
618 To compile this support as a module, choose M here: the module will be
619 called autofs4. You will need to add "alias autofs autofs4" to your
620 modules configuration file.
621
622 If you are not a part of a fairly large, distributed network or
623 don't have a laptop which needs to dynamically reconfigure to the
624 local network, you probably do not need an automounter, and can say
625 N here.
626
Miklos Szeredi04578f12005-09-09 13:10:22 -0700627config FUSE_FS
628 tristate "Filesystem in Userspace support"
629 help
630 With FUSE it is possible to implement a fully functional filesystem
631 in a userspace program.
632
633 There's also companion library: libfuse. This library along with
634 utilities is available from the FUSE homepage:
635 <http://fuse.sourceforge.net/>
636
Miklos Szeredi909021e2005-09-27 21:45:20 -0700637 See <file:Documentation/filesystems/fuse.txt> for more information.
638 See <file:Documentation/Changes> for needed library/utility version.
639
Miklos Szeredi04578f12005-09-09 13:10:22 -0700640 If you want to develop a userspace FS, or if you want to use
641 a filesystem based on FUSE, answer Y or M.
642
Randy Dunlapf2fbc6c2006-10-19 23:28:35 -0700643config GENERIC_ACL
644 bool
645 select FS_POSIX_ACL
646
David Howells93614012006-09-30 20:45:40 +0200647if BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648menu "CD-ROM/DVD Filesystems"
649
650config ISO9660_FS
651 tristate "ISO 9660 CDROM file system support"
652 help
653 This is the standard file system used on CD-ROMs. It was previously
654 known as "High Sierra File System" and is called "hsfs" on other
655 Unix systems. The so-called Rock-Ridge extensions which allow for
656 long Unix filenames and symbolic links are also supported by this
657 driver. If you have a CD-ROM drive and want to do more with it than
658 just listen to audio CDs and watch its LEDs, say Y (and read
659 <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO,
660 available from <http://www.tldp.org/docs.html#howto>), thereby
661 enlarging your kernel by about 27 KB; otherwise say N.
662
663 To compile this file system support as a module, choose M here: the
664 module will be called isofs.
665
666config JOLIET
667 bool "Microsoft Joliet CDROM extensions"
668 depends on ISO9660_FS
669 select NLS
670 help
671 Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
672 which allows for long filenames in unicode format (unicode is the
673 new 16 bit character code, successor to ASCII, which encodes the
674 characters of almost all languages of the world; see
675 <http://www.unicode.org/> for more information). Say Y here if you
676 want to be able to read Joliet CD-ROMs under Linux.
677
678config ZISOFS
679 bool "Transparent decompression extension"
680 depends on ISO9660_FS
681 select ZLIB_INFLATE
682 help
683 This is a Linux-specific extension to RockRidge which lets you store
684 data in compressed form on a CD-ROM and have it transparently
685 decompressed when the CD-ROM is accessed. See
686 <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
687 necessary to create such a filesystem. Say Y here if you want to be
688 able to read such compressed CD-ROMs.
689
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690config UDF_FS
691 tristate "UDF file system support"
692 help
693 This is the new file system used on some CD-ROMs and DVDs. Say Y if
694 you intend to mount DVD discs or CDRW's written in packet mode, or
695 if written to by other UDF utilities, such as DirectCD.
696 Please read <file:Documentation/filesystems/udf.txt>.
697
698 To compile this file system support as a module, choose M here: the
699 module will be called udf.
700
701 If unsure, say N.
702
703config UDF_NLS
704 bool
705 default y
706 depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
707
708endmenu
Randy Dunlap25fad942008-02-07 00:15:16 -0800709endif # BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710
David Howells93614012006-09-30 20:45:40 +0200711if BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712menu "DOS/FAT/NT Filesystems"
713
714config FAT_FS
715 tristate
716 select NLS
717 help
718 If you want to use one of the FAT-based file systems (the MS-DOS and
719 VFAT (Windows 95) file systems), then you must say Y or M here
720 to include FAT support. You will then be able to mount partitions or
721 diskettes with FAT-based file systems and transparently access the
722 files on them, i.e. MSDOS files will look and behave just like all
723 other Unix files.
724
725 This FAT support is not a file system in itself, it only provides
726 the foundation for the other file systems. You will have to say Y or
727 M to at least one of "MSDOS fs support" or "VFAT fs support" in
728 order to make use of it.
729
730 Another way to read and write MSDOS floppies and hard drive
731 partitions from within Linux (but not transparently) is with the
732 mtools ("man mtools") program suite. You don't need to say Y here in
733 order to do that.
734
735 If you need to move large files on floppies between a DOS and a
736 Linux box, say Y here, mount the floppy under Linux with an MSDOS
737 file system and use GNU tar's M option. GNU tar is a program
738 available for Unix and DOS ("man tar" or "info tar").
739
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 The FAT support will enlarge your kernel by about 37 KB. If unsure,
741 say Y.
742
743 To compile this as a module, choose M here: the module will be called
744 fat. Note that if you compile the FAT support as a module, you
745 cannot compile any of the FAT-based file systems into the kernel
746 -- they will have to be modules as well.
747
748config MSDOS_FS
749 tristate "MSDOS fs support"
750 select FAT_FS
751 help
752 This allows you to mount MSDOS partitions of your hard drive (unless
753 they are compressed; to access compressed MSDOS partitions under
754 Linux, you can either use the DOS emulator DOSEMU, described in the
755 DOSEMU-HOWTO, available from
756 <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
757 <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
758 intend to use dosemu with a non-compressed MSDOS partition, say Y
759 here) and MSDOS floppies. This means that file access becomes
760 transparent, i.e. the MSDOS files look and behave just like all
761 other Unix files.
762
763 If you have Windows 95 or Windows NT installed on your MSDOS
764 partitions, you should use the VFAT file system (say Y to "VFAT fs
765 support" below), or you will not be able to see the long filenames
766 generated by Windows 95 / Windows NT.
767
768 This option will enlarge your kernel by about 7 KB. If unsure,
769 answer Y. This will only work if you said Y to "DOS FAT fs support"
770 as well. To compile this as a module, choose M here: the module will
771 be called msdos.
772
773config VFAT_FS
774 tristate "VFAT (Windows-95) fs support"
775 select FAT_FS
776 help
777 This option provides support for normal Windows file systems with
778 long filenames. That includes non-compressed FAT-based file systems
779 used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
780 programs from the mtools package.
781
782 The VFAT support enlarges your kernel by about 10 KB and it only
783 works if you said Y to the "DOS FAT fs support" above. Please read
784 the file <file:Documentation/filesystems/vfat.txt> for details. If
785 unsure, say Y.
786
787 To compile this as a module, choose M here: the module will be called
788 vfat.
789
790config FAT_DEFAULT_CODEPAGE
791 int "Default codepage for FAT"
792 depends on MSDOS_FS || VFAT_FS
793 default 437
794 help
795 This option should be set to the codepage of your FAT filesystems.
796 It can be overridden with the "codepage" mount option.
797 See <file:Documentation/filesystems/vfat.txt> for more information.
798
799config FAT_DEFAULT_IOCHARSET
800 string "Default iocharset for FAT"
801 depends on VFAT_FS
802 default "iso8859-1"
803 help
804 Set this to the default input/output character set you'd
805 like FAT to use. It should probably match the character set
806 that most of your FAT filesystems use, and can be overridden
807 with the "iocharset" mount option for FAT filesystems.
808 Note that "utf8" is not recommended for FAT filesystems.
809 If unsure, you shouldn't set "utf8" here.
810 See <file:Documentation/filesystems/vfat.txt> for more information.
811
812config NTFS_FS
813 tristate "NTFS file system support"
814 select NLS
815 help
816 NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
817
818 Saying Y or M here enables read support. There is partial, but
819 safe, write support available. For write support you must also
820 say Y to "NTFS write support" below.
821
822 There are also a number of user-space tools available, called
823 ntfsprogs. These include ntfsundelete and ntfsresize, that work
824 without NTFS support enabled in the kernel.
825
826 This is a rewrite from scratch of Linux NTFS support and replaced
827 the old NTFS code starting with Linux 2.5.11. A backport to
828 the Linux 2.4 kernel series is separately available as a patch
829 from the project web site.
830
831 For more information see <file:Documentation/filesystems/ntfs.txt>
832 and <http://linux-ntfs.sourceforge.net/>.
833
834 To compile this file system support as a module, choose M here: the
835 module will be called ntfs.
836
837 If you are not using Windows NT, 2000, XP or 2003 in addition to
838 Linux on your computer it is safe to say N.
839
840config NTFS_DEBUG
841 bool "NTFS debugging support"
842 depends on NTFS_FS
843 help
844 If you are experiencing any problems with the NTFS file system, say
845 Y here. This will result in additional consistency checks to be
846 performed by the driver as well as additional debugging messages to
847 be written to the system log. Note that debugging messages are
848 disabled by default. To enable them, supply the option debug_msgs=1
849 at the kernel command line when booting the kernel or as an option
850 to insmod when loading the ntfs module. Once the driver is active,
851 you can enable debugging messages by doing (as root):
852 echo 1 > /proc/sys/fs/ntfs-debug
853 Replacing the "1" with "0" would disable debug messages.
854
855 If you leave debugging messages disabled, this results in little
856 overhead, but enabling debug messages results in very significant
857 slowdown of the system.
858
859 When reporting bugs, please try to have available a full dump of
860 debugging messages while the misbehaviour was occurring.
861
862config NTFS_RW
863 bool "NTFS write support"
864 depends on NTFS_FS
865 help
866 This enables the partial, but safe, write support in the NTFS driver.
867
868 The only supported operation is overwriting existing files, without
869 changing the file length. No file or directory creation, deletion or
870 renaming is possible. Note only non-resident files can be written to
871 so you may find that some very small files (<500 bytes or so) cannot
872 be written to.
873
874 While we cannot guarantee that it will not damage any data, we have
875 so far not received a single report where the driver would have
876 damaged someones data so we assume it is perfectly safe to use.
877
878 Note: While write support is safe in this version (a rewrite from
879 scratch of the NTFS support), it should be noted that the old NTFS
880 write support, included in Linux 2.5.10 and before (since 1997),
881 is not safe.
882
883 This is currently useful with TopologiLinux. TopologiLinux is run
884 on top of any DOS/Microsoft Windows system without partitioning your
885 hard disk. Unlike other Linux distributions TopologiLinux does not
886 need its own partition. For more information see
887 <http://topologi-linux.sourceforge.net/>
888
889 It is perfectly safe to say N here.
890
891endmenu
Randy Dunlap25fad942008-02-07 00:15:16 -0800892endif # BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893
894menu "Pseudo filesystems"
895
896config PROC_FS
H. Peter Anvin69755652006-06-25 05:48:08 -0700897 bool "/proc file system support" if EMBEDDED
898 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899 help
900 This is a virtual file system providing information about the status
901 of the system. "Virtual" means that it doesn't take up any space on
902 your hard disk: the files are created on the fly by the kernel when
903 you try to access them. Also, you cannot read the files with older
904 version of the program less: you need to use more or cat.
905
906 It's totally cool; for example, "cat /proc/interrupts" gives
907 information about what the different IRQs are used for at the moment
908 (there is a small number of Interrupt ReQuest lines in your computer
909 that are used by the attached devices to gain the CPU's attention --
910 often a source of trouble if two devices are mistakenly configured
911 to use the same IRQ). The program procinfo to display some
912 information about your system gathered from the /proc file system.
913
914 Before you can use the /proc file system, it has to be mounted,
915 meaning it has to be given a location in the directory hierarchy.
916 That location should be /proc. A command such as "mount -t proc proc
917 /proc" or the equivalent line in /etc/fstab does the job.
918
919 The /proc file system is explained in the file
920 <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
921 ("man 5 proc").
922
923 This option will enlarge your kernel by about 67 KB. Several
924 programs depend on this, so everyone should say Y here.
925
926config PROC_KCORE
927 bool "/proc/kcore support" if !ARM
928 depends on PROC_FS && MMU
929
Vivek Goyal666bfdd2005-06-25 14:58:21 -0700930config PROC_VMCORE
931 bool "/proc/vmcore support (EXPERIMENTAL)"
Maneesh Soni05970d42006-01-09 20:51:52 -0800932 depends on PROC_FS && EXPERIMENTAL && CRASH_DUMP
Vivek Goyal68250ba2006-04-10 22:54:30 -0700933 default y
Vivek Goyal666bfdd2005-06-25 14:58:21 -0700934 help
935 Exports the dump image of crashed kernel in ELF format.
936
Eric W. Biedermanb89a8172006-09-27 01:51:04 -0700937config PROC_SYSCTL
938 bool "Sysctl support (/proc/sys)" if EMBEDDED
939 depends on PROC_FS
940 select SYSCTL
941 default y
942 ---help---
943 The sysctl interface provides a means of dynamically changing
944 certain kernel parameters and variables on the fly without requiring
945 a recompile of the kernel or reboot of the system. The primary
946 interface is through /proc/sys. If you say Y here a tree of
947 modifiable sysctl entries will be generated beneath the
948 /proc/sys directory. They are explained in the files
949 in <file:Documentation/sysctl/>. Note that enabling this
950 option will enlarge the kernel by at least 8 KB.
951
952 As it is generally a good thing, you should say Y here unless
953 building a kernel for install/rescue disks or your system is very
954 limited in memory.
955
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956config SYSFS
957 bool "sysfs file system support" if EMBEDDED
958 default y
959 help
960 The sysfs filesystem is a virtual filesystem that the kernel uses to
961 export internal kernel objects, their attributes, and their
962 relationships to one another.
963
964 Users can use sysfs to ascertain useful information about the running
965 kernel, such as the devices the kernel has discovered on each bus and
966 which driver each is bound to. sysfs can also be used to tune devices
967 and other kernel subsystems.
968
969 Some system agents rely on the information in sysfs to operate.
970 /sbin/hotplug uses device and object attributes in sysfs to assist in
Jan Engelhardt03a67a42006-11-30 05:32:19 +0100971 delegating policy decisions, like persistently naming devices.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972
973 sysfs is currently used by the block subsystem to mount the root
974 partition. If sysfs is disabled you must specify the boot device on
975 the kernel boot command line via its major and minor numbers. For
976 example, "root=03:01" for /dev/hda1.
977
978 Designers of embedded systems may wish to say N here to conserve space.
979
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980config TMPFS
981 bool "Virtual memory file system support (former shm fs)"
982 help
983 Tmpfs is a file system which keeps all files in virtual memory.
984
985 Everything in tmpfs is temporary in the sense that no files will be
986 created on your hard drive. The files live in memory and swap
987 space. If you unmount a tmpfs instance, everything stored therein is
988 lost.
989
990 See <file:Documentation/filesystems/tmpfs.txt> for details.
991
Andreas Gruenbacher39f02472006-09-29 02:01:35 -0700992config TMPFS_POSIX_ACL
993 bool "Tmpfs POSIX Access Control Lists"
994 depends on TMPFS
995 select GENERIC_ACL
996 help
997 POSIX Access Control Lists (ACLs) support permissions for users and
998 groups beyond the owner/group/world scheme.
999
1000 To learn more about Access Control Lists, visit the POSIX ACLs for
1001 Linux website <http://acl.bestbits.at/>.
1002
1003 If you don't know what Access Control Lists are, say N.
1004
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005config HUGETLBFS
1006 bool "HugeTLB file system support"
Paul Mundtdd950582007-06-11 15:35:34 +09001007 depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || BROKEN
Arthur Othienodda27d12006-04-18 22:20:57 -07001008 help
1009 hugetlbfs is a filesystem backing for HugeTLB pages, based on
1010 ramfs. For architectures that support it, say Y here and read
1011 <file:Documentation/vm/hugetlbpage.txt> for details.
1012
1013 If unsure, say N.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014
1015config HUGETLB_PAGE
1016 def_bool HUGETLBFS
1017
Joel Becker7063fbf2005-12-15 14:29:43 -08001018config CONFIGFS_FS
Joel Becker02ac0492007-12-31 13:56:47 -08001019 tristate "Userspace-driven configuration filesystem"
1020 depends on SYSFS
Joel Becker7063fbf2005-12-15 14:29:43 -08001021 help
1022 configfs is a ram-based filesystem that provides the converse
1023 of sysfs's functionality. Where sysfs is a filesystem-based
1024 view of kernel objects, configfs is a filesystem-based manager
1025 of kernel objects, or config_items.
1026
1027 Both sysfs and configfs can and should exist together on the
1028 same system. One is not a replacement for the other.
1029
Linus Torvalds1da177e2005-04-16 15:20:36 -07001030endmenu
1031
1032menu "Miscellaneous filesystems"
1033
1034config ADFS_FS
1035 tristate "ADFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001036 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037 help
1038 The Acorn Disc Filing System is the standard file system of the
1039 RiscOS operating system which runs on Acorn's ARM-based Risc PC
1040 systems and the Acorn Archimedes range of machines. If you say Y
1041 here, Linux will be able to read from ADFS partitions on hard drives
1042 and from ADFS-formatted floppy discs. If you also want to be able to
1043 write to those devices, say Y to "ADFS write support" below.
1044
1045 The ADFS partition should be the first partition (i.e.,
1046 /dev/[hs]d?1) on each of your drives. Please read the file
1047 <file:Documentation/filesystems/adfs.txt> for further details.
1048
1049 To compile this code as a module, choose M here: the module will be
1050 called adfs.
1051
1052 If unsure, say N.
1053
1054config ADFS_FS_RW
1055 bool "ADFS write support (DANGEROUS)"
1056 depends on ADFS_FS
1057 help
1058 If you say Y here, you will be able to write to ADFS partitions on
1059 hard drives and ADFS-formatted floppy disks. This is experimental
1060 codes, so if you're unsure, say N.
1061
1062config AFFS_FS
1063 tristate "Amiga FFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001064 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065 help
1066 The Fast File System (FFS) is the common file system used on hard
1067 disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y
1068 if you want to be able to read and write files from and to an Amiga
1069 FFS partition on your hard drive. Amiga floppies however cannot be
1070 read with this driver due to an incompatibility of the floppy
1071 controller used in an Amiga and the standard floppy controller in
1072 PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
1073 and <file:fs/affs/Changes>.
1074
1075 With this driver you can also mount disk files used by Bernd
1076 Schmidt's Un*X Amiga Emulator
1077 (<http://www.freiburg.linux.de/~uae/>).
1078 If you want to do this, you will also need to say Y or M to "Loop
1079 device support", above.
1080
1081 To compile this file system support as a module, choose M here: the
1082 module will be called affs. If unsure, say N.
1083
Michael Halcrow237fead2006-10-04 02:16:22 -07001084config ECRYPT_FS
1085 tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
Michael Halcrow88b4a072007-02-12 00:53:43 -08001086 depends on EXPERIMENTAL && KEYS && CRYPTO && NET
Michael Halcrow237fead2006-10-04 02:16:22 -07001087 help
1088 Encrypted filesystem that operates on the VFS layer. See
Dirk Hohndele4031492007-10-30 13:37:19 -07001089 <file:Documentation/filesystems/ecryptfs.txt> to learn more about
Michael Halcrow237fead2006-10-04 02:16:22 -07001090 eCryptfs. Userspace components are required and can be
1091 obtained from <http://ecryptfs.sf.net>.
1092
1093 To compile this file system support as a module, choose M here: the
1094 module will be called ecryptfs.
1095
Linus Torvalds1da177e2005-04-16 15:20:36 -07001096config HFS_FS
1097 tristate "Apple Macintosh file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001098 depends on BLOCK && EXPERIMENTAL
Lennert Buytenhek878129a2005-11-07 00:59:18 -08001099 select NLS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100 help
1101 If you say Y here, you will be able to mount Macintosh-formatted
1102 floppy disks and hard drive partitions with full read-write access.
Johann Felix Soden889c94a2008-01-20 14:41:18 +01001103 Please read <file:Documentation/filesystems/hfs.txt> to learn about
1104 the available mount options.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001105
1106 To compile this file system support as a module, choose M here: the
1107 module will be called hfs.
1108
1109config HFSPLUS_FS
1110 tristate "Apple Extended HFS file system support"
David Howells93614012006-09-30 20:45:40 +02001111 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001112 select NLS
1113 select NLS_UTF8
1114 help
1115 If you say Y here, you will be able to mount extended format
1116 Macintosh-formatted hard drive partitions with full read-write access.
1117
1118 This file system is often called HFS+ and was introduced with
1119 MacOS 8. It includes all Mac specific filesystem data such as
1120 data forks and creator codes, but it also has several UNIX
1121 style features such as file ownership and permissions.
1122
1123config BEFS_FS
1124 tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001125 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126 select NLS
1127 help
1128 The BeOS File System (BeFS) is the native file system of Be, Inc's
1129 BeOS. Notable features include support for arbitrary attributes
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +01001130 on files and directories, and database-like indices on selected
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131 attributes. (Also note that this driver doesn't make those features
1132 available at this time). It is a 64 bit filesystem, so it supports
Matt LaPlante44c09202006-10-03 22:34:14 +02001133 extremely large volumes and files.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134
1135 If you use this filesystem, you should also say Y to at least one
1136 of the NLS (native language support) options below.
1137
1138 If you don't know what this is about, say N.
1139
1140 To compile this as a module, choose M here: the module will be
1141 called befs.
1142
1143config BEFS_DEBUG
1144 bool "Debug BeFS"
1145 depends on BEFS_FS
1146 help
1147 If you say Y here, you can use the 'debug' mount option to enable
Andrew Mortonc7736332008-02-05 14:22:58 -08001148 debugging output from the driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149
1150config BFS_FS
1151 tristate "BFS file system support (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001152 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001153 help
1154 Boot File System (BFS) is a file system used under SCO UnixWare to
1155 allow the bootloader access to the kernel image and other important
1156 files during the boot process. It is usually mounted under /stand
1157 and corresponds to the slice marked as "STAND" in the UnixWare
1158 partition. You should say Y if you want to read or write the files
1159 on your /stand slice from within Linux. You then also need to say Y
1160 to "UnixWare slices support", below. More information about the BFS
1161 file system is contained in the file
1162 <file:Documentation/filesystems/bfs.txt>.
1163
1164 If you don't know what this is about, say N.
1165
1166 To compile this as a module, choose M here: the module will be called
1167 bfs. Note that the file system of your root partition (the one
1168 containing the directory /) cannot be compiled as a module.
1169
1170
1171
1172config EFS_FS
1173 tristate "EFS file system support (read only) (EXPERIMENTAL)"
David Howells93614012006-09-30 20:45:40 +02001174 depends on BLOCK && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175 help
1176 EFS is an older file system used for non-ISO9660 CD-ROMs and hard
1177 disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
1178 uses the XFS file system for hard disk partitions however).
1179
1180 This implementation only offers read-only access. If you don't know
1181 what all this is about, it's safe to say N. For more information
1182 about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
1183
1184 To compile the EFS file system support as a module, choose M here: the
1185 module will be called efs.
1186
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187config JFFS2_FS
1188 tristate "Journalling Flash File System v2 (JFFS2) support"
1189 select CRC32
1190 depends on MTD
1191 help
1192 JFFS2 is the second generation of the Journalling Flash File System
1193 for use on diskless embedded devices. It provides improved wear
1194 levelling, compression and support for hard links. You cannot use
1195 this on normal block devices, only on 'MTD' devices.
1196
1197 Further information on the design and implementation of JFFS2 is
1198 available at <http://sources.redhat.com/jffs2/>.
1199
1200config JFFS2_FS_DEBUG
1201 int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
1202 depends on JFFS2_FS
1203 default "0"
1204 help
1205 This controls the amount of debugging messages produced by the JFFS2
1206 code. Set it to zero for use in production systems. For evaluation,
1207 testing and debugging, it's advisable to set it to one. This will
1208 enable a few assertions and will print debugging messages at the
1209 KERN_DEBUG loglevel, where they won't normally be visible. Level 2
1210 is unlikely to be useful - it enables extra debugging in certain
1211 areas which at one point needed debugging, but when the bugs were
1212 located and fixed, the detailed messages were relegated to level 2.
1213
1214 If reporting bugs, please try to have available a full dump of the
1215 messages at debug level 1 while the misbehaviour was occurring.
1216
David Woodhouse2ba72cb2006-06-18 10:22:40 +01001217config JFFS2_FS_WRITEBUFFER
1218 bool "JFFS2 write-buffering support"
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001219 depends on JFFS2_FS
David Woodhouse2ba72cb2006-06-18 10:22:40 +01001220 default y
1221 help
1222 This enables the write-buffering support in JFFS2.
1223
1224 This functionality is required to support JFFS2 on the following
1225 types of flash devices:
1226 - NAND flash
1227 - NOR flash with transparent ECC
1228 - DataFlash
1229
David Woodhousea6bc4322007-07-11 14:23:54 +01001230config JFFS2_FS_WBUF_VERIFY
1231 bool "Verify JFFS2 write-buffer reads"
1232 depends on JFFS2_FS_WRITEBUFFER
1233 default n
1234 help
1235 This causes JFFS2 to read back every page written through the
1236 write-buffer, and check for errors.
1237
David Woodhouse2ba72cb2006-06-18 10:22:40 +01001238config JFFS2_SUMMARY
1239 bool "JFFS2 summary support (EXPERIMENTAL)"
1240 depends on JFFS2_FS && EXPERIMENTAL
1241 default n
1242 help
1243 This feature makes it possible to use summary information
1244 for faster filesystem mount.
1245
1246 The summary information can be inserted into a filesystem image
1247 by the utility 'sumtool'.
1248
1249 If unsure, say 'N'.
1250
1251config JFFS2_FS_XATTR
1252 bool "JFFS2 XATTR support (EXPERIMENTAL)"
KaiGai Kohei04510de2006-06-24 09:21:13 +09001253 depends on JFFS2_FS && EXPERIMENTAL
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001254 default n
1255 help
1256 Extended attributes are name:value pairs associated with inodes by
1257 the kernel or by users (see the attr(5) manual page, or visit
1258 <http://acl.bestbits.at/> for details).
Andrew Mortonc7736332008-02-05 14:22:58 -08001259
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001260 If unsure, say N.
1261
1262config JFFS2_FS_POSIX_ACL
1263 bool "JFFS2 POSIX Access Control Lists"
1264 depends on JFFS2_FS_XATTR
1265 default y
1266 select FS_POSIX_ACL
1267 help
1268 Posix Access Control Lists (ACLs) support permissions for users and
1269 groups beyond the owner/group/world scheme.
Andrew Mortonc7736332008-02-05 14:22:58 -08001270
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001271 To learn more about Access Control Lists, visit the Posix ACLs for
1272 Linux website <http://acl.bestbits.at/>.
Andrew Mortonc7736332008-02-05 14:22:58 -08001273
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001274 If you don't know what Access Control Lists are, say N
1275
1276config JFFS2_FS_SECURITY
1277 bool "JFFS2 Security Labels"
1278 depends on JFFS2_FS_XATTR
1279 default y
1280 help
1281 Security labels support alternative access control models
1282 implemented by security modules like SELinux. This option
1283 enables an extended attribute handler for file security
1284 labels in the jffs2 filesystem.
Andrew Mortonc7736332008-02-05 14:22:58 -08001285
KaiGai Koheiaa98d7c2006-05-13 15:09:47 +09001286 If you are not using a security module that requires using
1287 extended attributes for file security labels, say N.
1288
Linus Torvalds1da177e2005-04-16 15:20:36 -07001289config JFFS2_COMPRESSION_OPTIONS
1290 bool "Advanced compression options for JFFS2"
1291 depends on JFFS2_FS
1292 default n
1293 help
1294 Enabling this option allows you to explicitly choose which
1295 compression modules, if any, are enabled in JFFS2. Removing
Uwe Kleine-König9e2de402007-12-17 16:19:54 -08001296 compressors can mean you cannot read existing file systems,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297 and enabling experimental compressors can mean that you
1298 write a file system which cannot be read by a standard kernel.
1299
1300 If unsure, you should _definitely_ say 'N'.
1301
1302config JFFS2_ZLIB
1303 bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS
1304 select ZLIB_INFLATE
1305 select ZLIB_DEFLATE
1306 depends on JFFS2_FS
1307 default y
David Woodhouseef53cb02007-07-10 10:01:22 +01001308 help
1309 Zlib is designed to be a free, general-purpose, legally unencumbered,
1310 lossless data-compression library for use on virtually any computer
1311 hardware and operating system. See <http://www.gzip.org/zlib/> for
1312 further information.
Thomas Gleixner182ec4e2005-11-07 11:16:07 +00001313
David Woodhouseef53cb02007-07-10 10:01:22 +01001314 Say 'Y' if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001315
Richard Purdiec799aca2007-07-10 10:28:36 +01001316config JFFS2_LZO
1317 bool "JFFS2 LZO compression support" if JFFS2_COMPRESSION_OPTIONS
1318 select LZO_COMPRESS
1319 select LZO_DECOMPRESS
1320 depends on JFFS2_FS
David Woodhouse3ca135e2007-08-02 16:32:02 +01001321 default n
Richard Purdiec799aca2007-07-10 10:28:36 +01001322 help
1323 minilzo-based compression. Generally works better than Zlib.
1324
David Woodhouse3ca135e2007-08-02 16:32:02 +01001325 This feature was added in July, 2007. Say 'N' if you need
1326 compatibility with older bootloaders or kernels.
Richard Purdiec799aca2007-07-10 10:28:36 +01001327
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328config JFFS2_RTIME
1329 bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
1330 depends on JFFS2_FS
1331 default y
David Woodhouseef53cb02007-07-10 10:01:22 +01001332 help
1333 Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334
1335config JFFS2_RUBIN
1336 bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
1337 depends on JFFS2_FS
1338 default n
David Woodhouseef53cb02007-07-10 10:01:22 +01001339 help
1340 RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001341
1342choice
David Woodhouseef53cb02007-07-10 10:01:22 +01001343 prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
1344 default JFFS2_CMODE_PRIORITY
1345 depends on JFFS2_FS
1346 help
1347 You can set here the default compression mode of JFFS2 from
1348 the available compression modes. Don't touch if unsure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349
1350config JFFS2_CMODE_NONE
David Woodhouseef53cb02007-07-10 10:01:22 +01001351 bool "no compression"
1352 help
1353 Uses no compression.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354
1355config JFFS2_CMODE_PRIORITY
David Woodhouseef53cb02007-07-10 10:01:22 +01001356 bool "priority"
1357 help
1358 Tries the compressors in a predefined order and chooses the first
1359 successful one.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001360
1361config JFFS2_CMODE_SIZE
David Woodhouseef53cb02007-07-10 10:01:22 +01001362 bool "size (EXPERIMENTAL)"
1363 help
1364 Tries all compressors and chooses the one which has the smallest
1365 result.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366
Richard Purdie3b23c1f2007-07-10 10:28:42 +01001367config JFFS2_CMODE_FAVOURLZO
1368 bool "Favour LZO"
1369 help
1370 Tries all compressors and chooses the one which has the smallest
1371 result but gives some preference to LZO (which has faster
1372 decompression) at the expense of size.
1373
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374endchoice
1375
1376config CRAMFS
1377 tristate "Compressed ROM file system support (cramfs)"
David Howells93614012006-09-30 20:45:40 +02001378 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379 select ZLIB_INFLATE
1380 help
1381 Saying Y here includes support for CramFs (Compressed ROM File
1382 System). CramFs is designed to be a simple, small, and compressed
1383 file system for ROM based embedded systems. CramFs is read-only,
1384 limited to 256MB file systems (with 16MB files), and doesn't support
1385 16/32 bits uid/gid, hard links and timestamps.
1386
1387 See <file:Documentation/filesystems/cramfs.txt> and
1388 <file:fs/cramfs/README> for further information.
1389
1390 To compile this as a module, choose M here: the module will be called
1391 cramfs. Note that the root file system (the one containing the
1392 directory /) cannot be compiled as a module.
1393
1394 If unsure, say N.
1395
1396config VXFS_FS
1397 tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
David Howells93614012006-09-30 20:45:40 +02001398 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399 help
1400 FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
1401 file system format. VERITAS VxFS(TM) is the standard file system
1402 of SCO UnixWare (and possibly others) and optionally available
1403 for Sunsoft Solaris, HP-UX and many other operating systems.
1404 Currently only readonly access is supported.
1405
1406 NOTE: the file system type as used by mount(1), mount(2) and
1407 fstab(5) is 'vxfs' as it describes the file system format, not
1408 the actual driver.
1409
1410 To compile this as a module, choose M here: the module will be
1411 called freevxfs. If unsure, say N.
1412
Randy Dunlap25fad942008-02-07 00:15:16 -08001413config MINIX_FS
1414 tristate "Minix file system support"
1415 depends on BLOCK
1416 help
1417 Minix is a simple operating system used in many classes about OS's.
1418 The minix file system (method to organize files on a hard disk
1419 partition or a floppy disk) was the original file system for Linux,
1420 but has been superseded by the second extended file system ext2fs.
1421 You don't want to use the minix file system on your hard disk
1422 because of certain built-in restrictions, but it is sometimes found
1423 on older Linux floppy disks. This option will enlarge your kernel
1424 by about 28 KB. If unsure, say N.
1425
1426 To compile this file system support as a module, choose M here: the
1427 module will be called minix. Note that the file system of your root
1428 partition (the one containing the directory /) cannot be compiled as
1429 a module.
1430
Linus Torvalds1da177e2005-04-16 15:20:36 -07001431
1432config HPFS_FS
1433 tristate "OS/2 HPFS file system support"
David Howells93614012006-09-30 20:45:40 +02001434 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435 help
1436 OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
1437 is the file system used for organizing files on OS/2 hard disk
1438 partitions. Say Y if you want to be able to read files from and
1439 write files to an OS/2 HPFS partition on your hard drive. OS/2
1440 floppies however are in regular MSDOS format, so you don't need this
1441 option in order to be able to read them. Read
1442 <file:Documentation/filesystems/hpfs.txt>.
1443
1444 To compile this file system support as a module, choose M here: the
1445 module will be called hpfs. If unsure, say N.
1446
1447
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448config QNX4FS_FS
1449 tristate "QNX4 file system support (read only)"
David Howells93614012006-09-30 20:45:40 +02001450 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451 help
1452 This is the file system used by the real-time operating systems
1453 QNX 4 and QNX 6 (the latter is also called QNX RTP).
1454 Further information is available at <http://www.qnx.com/>.
1455 Say Y if you intend to mount QNX hard disks or floppies.
1456 Unless you say Y to "QNX4FS read-write support" below, you will
1457 only be able to read these file systems.
1458
1459 To compile this file system support as a module, choose M here: the
1460 module will be called qnx4.
1461
1462 If you don't know whether you need it, then you don't need it:
1463 answer N.
1464
1465config QNX4FS_RW
1466 bool "QNX4FS write support (DANGEROUS)"
1467 depends on QNX4FS_FS && EXPERIMENTAL && BROKEN
1468 help
1469 Say Y if you want to test write support for QNX4 file systems.
1470
1471 It's currently broken, so for now:
1472 answer N.
1473
Randy Dunlap25fad942008-02-07 00:15:16 -08001474config ROMFS_FS
1475 tristate "ROM file system support"
1476 depends on BLOCK
1477 ---help---
1478 This is a very small read-only file system mainly intended for
1479 initial ram disks of installation disks, but it could be used for
1480 other read-only media as well. Read
1481 <file:Documentation/filesystems/romfs.txt> for details.
1482
1483 To compile this file system support as a module, choose M here: the
1484 module will be called romfs. Note that the file system of your
1485 root partition (the one containing the directory /) cannot be a
1486 module.
1487
1488 If you don't know whether you need it, then you don't need it:
1489 answer N.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490
1491
1492config SYSV_FS
1493 tristate "System V/Xenix/V7/Coherent file system support"
David Howells93614012006-09-30 20:45:40 +02001494 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495 help
1496 SCO, Xenix and Coherent are commercial Unix systems for Intel
1497 machines, and Version 7 was used on the DEC PDP-11. Saying Y
1498 here would allow you to read from their floppies and hard disk
1499 partitions.
1500
1501 If you have floppies or hard disk partitions like that, it is likely
1502 that they contain binaries from those other Unix systems; in order
Matt LaPlantecab00892006-10-03 22:36:44 +02001503 to run these binaries, you will want to install linux-abi which is
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504 a set of kernel modules that lets you run SCO, Xenix, Wyse,
1505 UnixWare, Dell Unix and System V programs under Linux. It is
1506 available via FTP (user: ftp) from
1507 <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
1508 NOTE: that will work only for binaries from Intel-based systems;
1509 PDP ones will have to wait until somebody ports Linux to -11 ;-)
1510
1511 If you only intend to mount files from some other Unix over the
1512 network using NFS, you don't need the System V file system support
1513 (but you need NFS file system support obviously).
1514
1515 Note that this option is generally not needed for floppies, since a
1516 good portable way to transport files and directories between unixes
1517 (and even other operating systems) is given by the tar program ("man
1518 tar" or preferably "info tar"). Note also that this option has
1519 nothing whatsoever to do with the option "System V IPC". Read about
1520 the System V file system in
1521 <file:Documentation/filesystems/sysv-fs.txt>.
1522 Saying Y here will enlarge your kernel by about 27 KB.
1523
1524 To compile this as a module, choose M here: the module will be called
1525 sysv.
1526
1527 If you haven't heard about all of this before, it's safe to say N.
1528
1529
Linus Torvalds1da177e2005-04-16 15:20:36 -07001530config UFS_FS
1531 tristate "UFS file system support (read only)"
David Howells93614012006-09-30 20:45:40 +02001532 depends on BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533 help
1534 BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
1535 OpenBSD and NeXTstep) use a file system called UFS. Some System V
1536 Unixes can create and mount hard disk partitions and diskettes using
1537 this file system as well. Saying Y here will allow you to read from
1538 these partitions; if you also want to write to them, say Y to the
1539 experimental "UFS file system write support", below. Please read the
1540 file <file:Documentation/filesystems/ufs.txt> for more information.
1541
1542 The recently released UFS2 variant (used in FreeBSD 5.x) is
1543 READ-ONLY supported.
1544
1545 If you only intend to mount files from some other Unix over the
1546 network using NFS, you don't need the UFS file system support (but
1547 you need NFS file system support obviously).
1548
1549 Note that this option is generally not needed for floppies, since a
1550 good portable way to transport files and directories between unixes
1551 (and even other operating systems) is given by the tar program ("man
1552 tar" or preferably "info tar").
1553
1554 When accessing NeXTstep files, you may need to convert them from the
1555 NeXT character set to the Latin1 character set; use the program
1556 recode ("info recode") for this purpose.
1557
1558 To compile the UFS file system support as a module, choose M here: the
1559 module will be called ufs.
1560
1561 If you haven't heard about all of this before, it's safe to say N.
1562
1563config UFS_FS_WRITE
1564 bool "UFS file system write support (DANGEROUS)"
Evgeniy Dushistov5afb3142006-06-25 05:47:24 -07001565 depends on UFS_FS && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566 help
1567 Say Y here if you want to try writing to UFS partitions. This is
1568 experimental, so you should back up your UFS partitions beforehand.
1569
Evgeniy Dushistovabf5d152006-06-25 05:47:24 -07001570config UFS_DEBUG
1571 bool "UFS debugging"
1572 depends on UFS_FS
1573 help
1574 If you are experiencing any problems with the UFS filesystem, say
1575 Y here. This will result in _many_ additional debugging messages to be
1576 written to the system log.
1577
Linus Torvalds1da177e2005-04-16 15:20:36 -07001578endmenu
1579
Jan Engelhardtea0985a2007-10-16 23:30:16 -07001580menuconfig NETWORK_FILESYSTEMS
1581 bool "Network File Systems"
1582 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -07001583 depends on NET
Jan Engelhardtea0985a2007-10-16 23:30:16 -07001584 ---help---
1585 Say Y here to get to see options for network filesystems and
1586 filesystem-related networking code, such as NFS daemon and
1587 RPCSEC security modules.
1588 This option alone does not add any kernel code.
1589
1590 If you say N, all options in this submenu will be skipped and
1591 disabled; if unsure, say Y here.
1592
1593if NETWORK_FILESYSTEMS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001594
1595config NFS_FS
1596 tristate "NFS file system support"
1597 depends on INET
1598 select LOCKD
1599 select SUNRPC
Andreas Gruenbacherb7fa0552005-06-22 17:16:27 +00001600 select NFS_ACL_SUPPORT if NFS_V3_ACL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001601 help
1602 If you are connected to some other (usually local) Unix computer
1603 (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
1604 on that computer (the NFS server) using the Network File Sharing
1605 protocol, say Y. "Mounting files" means that the client can access
1606 the files with usual UNIX commands as if they were sitting on the
1607 client's hard disk. For this to work, the server must run the
1608 programs nfsd and mountd (but does not need to have NFS file system
1609 support enabled in its kernel). NFS is explained in the Network
1610 Administrator's Guide, available from
1611 <http://www.tldp.org/docs.html#guide>, on its man page: "man
1612 nfs", and in the NFS-HOWTO.
1613
1614 A superior but less widely used alternative to NFS is provided by
1615 the Coda file system; see "Coda file system support" below.
1616
1617 If you say Y here, you should have said Y to TCP/IP networking also.
1618 This option would enlarge your kernel by about 27 KB.
1619
1620 To compile this file system support as a module, choose M here: the
1621 module will be called nfs.
1622
1623 If you are configuring a diskless machine which will mount its root
1624 file system over NFS at boot time, say Y here and to "Kernel
1625 level IP autoconfiguration" above and to "Root file system on NFS"
1626 below. You cannot compile this driver as a module in this case.
1627 There are two packages designed for booting diskless machines over
1628 the net: netboot, available from
1629 <http://ftp1.sourceforge.net/netboot/>, and Etherboot,
1630 available from <http://ftp1.sourceforge.net/etherboot/>.
1631
1632 If you don't know what all this is about, say N.
1633
1634config NFS_V3
1635 bool "Provide NFSv3 client support"
1636 depends on NFS_FS
1637 help
1638 Say Y here if you want your NFS client to be able to speak version
1639 3 of the NFS protocol.
1640
1641 If unsure, say Y.
1642
Andreas Gruenbacherb7fa0552005-06-22 17:16:27 +00001643config NFS_V3_ACL
1644 bool "Provide client support for the NFSv3 ACL protocol extension"
1645 depends on NFS_V3
1646 help
1647 Implement the NFSv3 ACL protocol extension for manipulating POSIX
1648 Access Control Lists. The server should also be compiled with
1649 the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option.
1650
1651 If unsure, say N.
1652
Linus Torvalds1da177e2005-04-16 15:20:36 -07001653config NFS_V4
1654 bool "Provide NFSv4 client support (EXPERIMENTAL)"
1655 depends on NFS_FS && EXPERIMENTAL
1656 select RPCSEC_GSS_KRB5
1657 help
1658 Say Y here if you want your NFS client to be able to speak the newer
1659 version 4 of the NFS protocol.
1660
1661 Note: Requires auxiliary userspace daemons which may be found on
1662 http://www.citi.umich.edu/projects/nfsv4/
1663
1664 If unsure, say N.
1665
1666config NFS_DIRECTIO
Chuck Lever026ed5c2006-09-20 14:33:07 -04001667 bool "Allow direct I/O on NFS files"
1668 depends on NFS_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001669 help
1670 This option enables applications to perform uncached I/O on files
1671 in NFS file systems using the O_DIRECT open() flag. When O_DIRECT
1672 is set for a file, its data is not cached in the system's page
1673 cache. Data is moved to and from user-level application buffers
1674 directly. Unlike local disk-based file systems, NFS O_DIRECT has
1675 no alignment restrictions.
1676
1677 Unless your program is designed to use O_DIRECT properly, you are
1678 much better off allowing the NFS client to manage data caching for
1679 you. Misusing O_DIRECT can cause poor server performance or network
1680 storms. This kernel build option defaults OFF to avoid exposing
1681 system administrators unwittingly to a potentially hazardous
1682 feature.
1683
1684 For more details on NFS O_DIRECT, see fs/nfs/direct.c.
1685
1686 If unsure, say N. This reduces the size of the NFS client, and
1687 causes open() to return EINVAL if a file residing in NFS is
1688 opened with the O_DIRECT flag.
1689
1690config NFSD
1691 tristate "NFS server support"
1692 depends on INET
1693 select LOCKD
1694 select SUNRPC
1695 select EXPORTFS
Herbert Xuf05e15b2006-06-26 00:25:39 -07001696 select NFSD_V2_ACL if NFSD_V3_ACL
1697 select NFS_ACL_SUPPORT if NFSD_V2_ACL
1698 select NFSD_TCP if NFSD_V4
1699 select CRYPTO_MD5 if NFSD_V4
1700 select CRYPTO if NFSD_V4
1701 select FS_POSIX_ACL if NFSD_V4
J. Bruce Fields440bcc52007-11-12 17:09:49 -05001702 select PROC_FS if NFSD_V4
1703 select PROC_FS if SUNRPC_GSS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001704 help
1705 If you want your Linux box to act as an NFS *server*, so that other
1706 computers on your local network which support NFS can access certain
1707 directories on your box transparently, you have two options: you can
1708 use the self-contained user space program nfsd, in which case you
1709 should say N here, or you can say Y and use the kernel based NFS
1710 server. The advantage of the kernel based solution is that it is
1711 faster.
1712
1713 In either case, you will need support software; the respective
1714 locations are given in the file <file:Documentation/Changes> in the
1715 NFS section.
1716
1717 If you say Y here, you will get support for version 2 of the NFS
1718 protocol (NFSv2). If you also want NFSv3, say Y to the next question
1719 as well.
1720
1721 Please read the NFS-HOWTO, available from
1722 <http://www.tldp.org/docs.html#howto>.
1723
1724 To compile the NFS server support as a module, choose M here: the
1725 module will be called nfsd. If unsure, say N.
1726
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001727config NFSD_V2_ACL
1728 bool
1729 depends on NFSD
1730
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731config NFSD_V3
1732 bool "Provide NFSv3 server support"
1733 depends on NFSD
1734 help
1735 If you would like to include the NFSv3 server as well as the NFSv2
1736 server, say Y here. If unsure, say Y.
1737
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001738config NFSD_V3_ACL
1739 bool "Provide server support for the NFSv3 ACL protocol extension"
1740 depends on NFSD_V3
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001741 help
1742 Implement the NFSv3 ACL protocol extension for manipulating POSIX
1743 Access Control Lists on exported file systems. NFS clients should
1744 be compiled with the NFSv3 ACL protocol extension; see the
1745 CONFIG_NFS_V3_ACL option. If unsure, say N.
1746
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747config NFSD_V4
1748 bool "Provide NFSv4 server support (EXPERIMENTAL)"
Trond Myklebust8cd69e12007-07-19 10:03:34 -04001749 depends on NFSD && NFSD_V3 && EXPERIMENTAL
J. Bruce Fields42ed95c2007-07-17 04:04:41 -07001750 select RPCSEC_GSS_KRB5
Linus Torvalds1da177e2005-04-16 15:20:36 -07001751 help
1752 If you would like to include the NFSv4 server as well as the NFSv2
1753 and NFSv3 servers, say Y here. This feature is experimental, and
1754 should only be used if you are interested in helping to test NFSv4.
1755 If unsure, say N.
1756
1757config NFSD_TCP
1758 bool "Provide NFS server over TCP support"
1759 depends on NFSD
1760 default y
1761 help
1762 If you want your NFS server to support TCP connections, say Y here.
1763 TCP connections usually perform better than the default UDP when
1764 the network is lossy or congested. If unsure, say Y.
1765
1766config ROOT_NFS
1767 bool "Root file system on NFS"
1768 depends on NFS_FS=y && IP_PNP
1769 help
1770 If you want your Linux box to mount its whole root file system (the
1771 one containing the directory /) from some other computer over the
1772 net via NFS (presumably because your box doesn't have a hard disk),
J. Bruce Fields6ded55d2008-04-07 15:59:03 -04001773 say Y. Read <file:Documentation/filesystems/nfsroot.txt> for
1774 details. It is likely that in this case, you also want to say Y to
1775 "Kernel level IP autoconfiguration" so that your box can discover
1776 its network address at boot time.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001777
1778 Most people say N here.
1779
1780config LOCKD
1781 tristate
1782
1783config LOCKD_V4
1784 bool
1785 depends on NFSD_V3 || NFS_V3
1786 default y
1787
1788config EXPORTFS
1789 tristate
1790
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +00001791config NFS_ACL_SUPPORT
1792 tristate
1793 select FS_POSIX_ACL
1794
1795config NFS_COMMON
1796 bool
1797 depends on NFSD || NFS_FS
1798 default y
1799
Linus Torvalds1da177e2005-04-16 15:20:36 -07001800config SUNRPC
1801 tristate
1802
1803config SUNRPC_GSS
1804 tristate
1805
\"Talpey, Thomas\c3a57ed2007-09-10 13:49:15 -04001806config SUNRPC_XPRT_RDMA
James Lentini3211e4e2008-01-28 12:09:28 -05001807 tristate
\"Talpey, Thomas\113632d2007-09-20 17:37:58 -04001808 depends on SUNRPC && INFINIBAND && EXPERIMENTAL
James Lentini3211e4e2008-01-28 12:09:28 -05001809 default SUNRPC && INFINIBAND
\"Talpey, Thomas\c3a57ed2007-09-10 13:49:15 -04001810
Chuck Lever00a6e7b2007-03-29 16:48:33 -04001811config SUNRPC_BIND34
1812 bool "Support for rpcbind versions 3 & 4 (EXPERIMENTAL)"
1813 depends on SUNRPC && EXPERIMENTAL
1814 help
1815 Provides kernel support for querying rpcbind servers via versions 3
1816 and 4 of the rpcbind protocol. The kernel automatically falls back
1817 to version 2 if a remote rpcbind service does not support versions
1818 3 or 4.
1819
1820 If unsure, say N to get traditional behavior (version 2 rpcbind
1821 requests only).
1822
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823config RPCSEC_GSS_KRB5
1824 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
1825 depends on SUNRPC && EXPERIMENTAL
1826 select SUNRPC_GSS
1827 select CRYPTO
1828 select CRYPTO_MD5
1829 select CRYPTO_DES
Patrick McHardybcbaecb2006-10-25 16:49:36 +10001830 select CRYPTO_CBC
Linus Torvalds1da177e2005-04-16 15:20:36 -07001831 help
1832 Provides for secure RPC calls by means of a gss-api
1833 mechanism based on Kerberos V5. This is required for
1834 NFSv4.
1835
1836 Note: Requires an auxiliary userspace daemon which may be found on
1837 http://www.citi.umich.edu/projects/nfsv4/
1838
1839 If unsure, say N.
1840
1841config RPCSEC_GSS_SPKM3
1842 tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
1843 depends on SUNRPC && EXPERIMENTAL
1844 select SUNRPC_GSS
1845 select CRYPTO
1846 select CRYPTO_MD5
1847 select CRYPTO_DES
J. Bruce Fieldsdf6db302006-03-20 23:25:10 -05001848 select CRYPTO_CAST5
Patrick McHardybcbaecb2006-10-25 16:49:36 +10001849 select CRYPTO_CBC
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850 help
1851 Provides for secure RPC calls by means of a gss-api
1852 mechanism based on the SPKM3 public-key mechanism.
1853
1854 Note: Requires an auxiliary userspace daemon which may be found on
1855 http://www.citi.umich.edu/projects/nfsv4/
1856
1857 If unsure, say N.
1858
1859config SMB_FS
Andrew Mortonc7736332008-02-05 14:22:58 -08001860 tristate "SMB file system support (OBSOLETE, please use CIFS)"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861 depends on INET
1862 select NLS
1863 help
1864 SMB (Server Message Block) is the protocol Windows for Workgroups
1865 (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
1866 files and printers over local networks. Saying Y here allows you to
1867 mount their file systems (often called "shares" in this context) and
1868 access them just like any other Unix directory. Currently, this
1869 works only if the Windows machines use TCP/IP as the underlying
1870 transport protocol, and not NetBEUI. For details, read
1871 <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
1872 available from <http://www.tldp.org/docs.html#howto>.
1873
1874 Note: if you just want your box to act as an SMB *server* and make
1875 files and printing services available to Windows clients (which need
1876 to have a TCP/IP stack), you don't need to say Y here; you can use
1877 the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
1878 for that.
1879
1880 General information about how to connect Linux, Windows machines and
1881 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1882
Andrew Mortonc7736332008-02-05 14:22:58 -08001883 To compile the SMB support as a module, choose M here:
1884 the module will be called smbfs. Most people say N, however.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001885
1886config SMB_NLS_DEFAULT
1887 bool "Use a default NLS"
1888 depends on SMB_FS
1889 help
1890 Enabling this will make smbfs use nls translations by default. You
1891 need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
1892 settings and you need to give the default nls for the SMB server as
1893 CONFIG_SMB_NLS_REMOTE.
1894
1895 The nls settings can be changed at mount time, if your smbmount
1896 supports that, using the codepage and iocharset parameters.
1897
1898 smbmount from samba 2.2.0 or later supports this.
1899
1900config SMB_NLS_REMOTE
1901 string "Default Remote NLS Option"
1902 depends on SMB_NLS_DEFAULT
1903 default "cp437"
1904 help
1905 This setting allows you to specify a default value for which
1906 codepage the server uses. If this field is left blank no
1907 translations will be done by default. The local codepage/charset
1908 default to CONFIG_NLS_DEFAULT.
1909
1910 The nls settings can be changed at mount time, if your smbmount
1911 supports that, using the codepage and iocharset parameters.
1912
1913 smbmount from samba 2.2.0 or later supports this.
1914
1915config CIFS
Andrew Mortonc7736332008-02-05 14:22:58 -08001916 tristate "CIFS support (advanced network filesystem, SMBFS successor)"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001917 depends on INET
1918 select NLS
1919 help
1920 This is the client VFS module for the Common Internet File System
1921 (CIFS) protocol which is the successor to the Server Message Block
1922 (SMB) protocol, the native file sharing mechanism for most early
1923 PC operating systems. The CIFS protocol is fully supported by
1924 file servers such as Windows 2000 (including Windows 2003, NT 4
1925 and Windows XP) as well by Samba (which provides excellent CIFS
Steve Frenchec58ef02005-11-04 09:44:33 -08001926 server support for Linux and many other operating systems). Limited
Steve French61033352008-01-09 16:21:36 +00001927 support for OS/2 and Windows ME and similar servers is provided as
1928 well.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001929
Steve French61033352008-01-09 16:21:36 +00001930 The cifs module provides an advanced network file system
1931 client for mounting to CIFS compliant servers. It includes
1932 support for DFS (hierarchical name space), secure per-user
1933 session establishment via Kerberos or NTLM or NTLMv2,
1934 safe distributed caching (oplock), optional packet
1935 signing, Unicode and other internationalization improvements.
Steve French8af18972007-02-14 04:42:51 +00001936 If you need to mount to Samba or Windows from this machine, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001937
1938config CIFS_STATS
1939 bool "CIFS statistics"
1940 depends on CIFS
1941 help
1942 Enabling this option will cause statistics for each server share
1943 mounted by the cifs client to be displayed in /proc/fs/cifs/Stats
1944
Steve Frenchec58ef02005-11-04 09:44:33 -08001945config CIFS_STATS2
Steve French39798772006-05-31 22:40:51 +00001946 bool "Extended statistics"
Steve Frenchec58ef02005-11-04 09:44:33 -08001947 depends on CIFS_STATS
1948 help
1949 Enabling this option will allow more detailed statistics on SMB
1950 request timing to be displayed in /proc/fs/cifs/DebugData and also
1951 allow optional logging of slow responses to dmesg (depending on the
1952 value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details).
1953 These additional statistics may have a minor effect on performance
1954 and memory utilization.
1955
1956 Unless you are a developer or are doing network performance analysis
1957 or tuning, say N.
1958
Steve French39798772006-05-31 22:40:51 +00001959config CIFS_WEAK_PW_HASH
1960 bool "Support legacy servers which use weaker LANMAN security"
1961 depends on CIFS
1962 help
1963 Modern CIFS servers including Samba and most Windows versions
1964 (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos)
1965 security mechanisms. These hash the password more securely
1966 than the mechanisms used in the older LANMAN version of the
Steve French61033352008-01-09 16:21:36 +00001967 SMB protocol but LANMAN based authentication is needed to
1968 establish sessions with some old SMB servers.
Steve French39798772006-05-31 22:40:51 +00001969
1970 Enabling this option allows the cifs module to mount to older
1971 LANMAN based servers such as OS/2 and Windows 95, but such
1972 mounts may be less secure than mounts using NTLM or more recent
1973 security mechanisms if you are on a public network. Unless you
Andrew Mortonc7736332008-02-05 14:22:58 -08001974 have a need to access old SMB servers (and are on a private
Steve French39798772006-05-31 22:40:51 +00001975 network) you probably want to say N. Even if this support
Steve French61033352008-01-09 16:21:36 +00001976 is enabled in the kernel build, LANMAN authentication will not be
1977 used automatically. At runtime LANMAN mounts are disabled but
Steve French39798772006-05-31 22:40:51 +00001978 can be set to required (or optional) either in
1979 /proc/fs/cifs (see fs/cifs/README for more detail) or via an
Andrew Mortonc7736332008-02-05 14:22:58 -08001980 option on the mount command. This support is disabled by
Steve French39798772006-05-31 22:40:51 +00001981 default in order to reduce the possibility of a downgrade
1982 attack.
Andrew Mortonc7736332008-02-05 14:22:58 -08001983
Steve French39798772006-05-31 22:40:51 +00001984 If unsure, say N.
1985
Linus Torvalds1da177e2005-04-16 15:20:36 -07001986config CIFS_XATTR
Steve Frenchec58ef02005-11-04 09:44:33 -08001987 bool "CIFS extended attributes"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001988 depends on CIFS
1989 help
1990 Extended attributes are name:value pairs associated with inodes by
1991 the kernel or by users (see the attr(5) manual page, or visit
1992 <http://acl.bestbits.at/> for details). CIFS maps the name of
1993 extended attributes beginning with the user namespace prefix
1994 to SMB/CIFS EAs. EAs are stored on Windows servers without the
1995 user namespace prefix, but their names are seen by Linux cifs clients
1996 prefaced by the user namespace prefix. The system namespace
1997 (used by some filesystems to store ACLs) is not supported at
1998 this time.
Steve Frenchec58ef02005-11-04 09:44:33 -08001999
Linus Torvalds1da177e2005-04-16 15:20:36 -07002000 If unsure, say N.
2001
2002config CIFS_POSIX
Steve Frenchec58ef02005-11-04 09:44:33 -08002003 bool "CIFS POSIX Extensions"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002004 depends on CIFS_XATTR
2005 help
2006 Enabling this option will cause the cifs client to attempt to
2007 negotiate a newer dialect with servers, such as Samba 3.0.5
2008 or later, that optionally can handle more POSIX like (rather
2009 than Windows like) file behavior. It also enables
2010 support for POSIX ACLs (getfacl and setfacl) to servers
2011 (such as Samba 3.10 and later) which can negotiate
2012 CIFS POSIX ACL support. If unsure, say N.
2013
Steve French39798772006-05-31 22:40:51 +00002014config CIFS_DEBUG2
Steve French3856a9d2006-06-01 19:38:46 +00002015 bool "Enable additional CIFS debugging routines"
Steve French8ba10ab2006-07-08 02:17:40 +00002016 depends on CIFS
Steve French39798772006-05-31 22:40:51 +00002017 help
2018 Enabling this option adds a few more debugging routines
2019 to the cifs code which slightly increases the size of
2020 the cifs module and can cause additional logging of debug
2021 messages in some error paths, slowing performance. This
2022 option can be turned off unless you are debugging
2023 cifs problems. If unsure, say N.
Andrew Mortonc7736332008-02-05 14:22:58 -08002024
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025config CIFS_EXPERIMENTAL
2026 bool "CIFS Experimental Features (EXPERIMENTAL)"
Steve Frenchcb9dbff2005-11-02 11:37:15 -08002027 depends on CIFS && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002028 help
Steve Frenchec58ef02005-11-04 09:44:33 -08002029 Enables cifs features under testing. These features are
Steve French8af18972007-02-14 04:42:51 +00002030 experimental and currently include DFS support and directory
2031 change notification ie fcntl(F_DNOTIFY), as well as the upcall
2032 mechanism which will be used for Kerberos session negotiation
2033 and uid remapping. Some of these features also may depend on
2034 setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental
2035 (which is disabled by default). See the file fs/cifs/README
2036 for more details. If unsure, say N.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002037
Steve Frencha2653eb2005-11-10 15:33:38 -08002038config CIFS_UPCALL
Steve French39798772006-05-31 22:40:51 +00002039 bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
Steve Frencha2653eb2005-11-10 15:33:38 -08002040 depends on CIFS_EXPERIMENTAL
Jeff Layton09fe7ba2007-11-03 04:48:29 +00002041 depends on KEYS
Steve Frencha2653eb2005-11-10 15:33:38 -08002042 help
Steve French61033352008-01-09 16:21:36 +00002043 Enables an upcall mechanism for CIFS which accesses
2044 userspace helper utilities to provide SPNEGO packaged (RFC 4178)
2045 Kerberos tickets which are needed to mount to certain secure servers
Steve French1b397f42005-11-10 19:36:39 -08002046 (for which more secure Kerberos authentication is required). If
2047 unsure, say N.
Steve Frencha2653eb2005-11-10 15:33:38 -08002048
Steve French61033352008-01-09 16:21:36 +00002049config CIFS_DFS_UPCALL
2050 bool "DFS feature support (EXPERIMENTAL)"
2051 depends on CIFS_EXPERIMENTAL
2052 depends on KEYS
2053 help
2054 Enables an upcall mechanism for CIFS which contacts userspace
2055 helper utilities to provide server name resolution (host names to
2056 IP addresses) which is needed for implicit mounts of DFS junction
2057 points. If unsure, say N.
2058
Linus Torvalds1da177e2005-04-16 15:20:36 -07002059config NCP_FS
2060 tristate "NCP file system support (to mount NetWare volumes)"
2061 depends on IPX!=n || INET
2062 help
2063 NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
2064 used by Novell NetWare clients to talk to file servers. It is to
2065 IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you
2066 to mount NetWare file server volumes and to access them just like
2067 any other Unix directory. For details, please read the file
2068 <file:Documentation/filesystems/ncpfs.txt> in the kernel source and
2069 the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
2070
2071 You do not have to say Y here if you want your Linux box to act as a
2072 file *server* for Novell NetWare clients.
2073
2074 General information about how to connect Linux, Windows machines and
2075 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
2076
2077 To compile this as a module, choose M here: the module will be called
2078 ncpfs. Say N unless you are connected to a Novell network.
2079
2080source "fs/ncpfs/Kconfig"
2081
2082config CODA_FS
2083 tristate "Coda file system support (advanced network fs)"
2084 depends on INET
2085 help
2086 Coda is an advanced network file system, similar to NFS in that it
2087 enables you to mount file systems of a remote server and access them
2088 with regular Unix commands as if they were sitting on your hard
2089 disk. Coda has several advantages over NFS: support for
2090 disconnected operation (e.g. for laptops), read/write server
2091 replication, security model for authentication and encryption,
2092 persistent client caches and write back caching.
2093
2094 If you say Y here, your Linux box will be able to act as a Coda
2095 *client*. You will need user level code as well, both for the
2096 client and server. Servers are currently user level, i.e. they need
2097 no kernel support. Please read
2098 <file:Documentation/filesystems/coda.txt> and check out the Coda
2099 home page <http://www.coda.cs.cmu.edu/>.
2100
2101 To compile the coda client support as a module, choose M here: the
2102 module will be called coda.
2103
2104config CODA_FS_OLD_API
2105 bool "Use 96-bit Coda file identifiers"
2106 depends on CODA_FS
2107 help
2108 A new kernel-userspace API had to be introduced for Coda v6.0
2109 to support larger 128-bit file identifiers as needed by the
2110 new realms implementation.
2111
2112 However this new API is not backward compatible with older
2113 clients. If you really need to run the old Coda userspace
2114 cache manager then say Y.
Andrew Mortonc7736332008-02-05 14:22:58 -08002115
Linus Torvalds1da177e2005-04-16 15:20:36 -07002116 For most cases you probably want to say N.
2117
2118config AFS_FS
David Howells64aaa4f2006-11-16 01:19:27 -08002119 tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120 depends on INET && EXPERIMENTAL
David Howells08e0e7c2007-04-26 15:55:03 -07002121 select AF_RXRPC
Linus Torvalds1da177e2005-04-16 15:20:36 -07002122 help
2123 If you say Y here, you will get an experimental Andrew File System
2124 driver. It currently only supports unsecured read-only AFS access.
2125
Matt LaPlantecc2e2762006-10-03 22:22:29 +02002126 See <file:Documentation/filesystems/afs.txt> for more information.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002127
2128 If unsure, say N.
2129
David Howells08e0e7c2007-04-26 15:55:03 -07002130config AFS_DEBUG
2131 bool "AFS dynamic debugging"
2132 depends on AFS_FS
2133 help
2134 Say Y here to make runtime controllable debugging messages appear.
2135
2136 See <file:Documentation/filesystems/afs.txt> for more information.
2137
2138 If unsure, say N.
2139
Eric Van Hensbergen93fa58c2005-09-09 13:04:18 -07002140config 9P_FS
2141 tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
Latchesar Ionkovbd238fb2007-07-10 17:57:28 -05002142 depends on INET && NET_9P && EXPERIMENTAL
Eric Van Hensbergen93fa58c2005-09-09 13:04:18 -07002143 help
2144 If you say Y here, you will get experimental support for
2145 Plan 9 resource sharing via the 9P2000 protocol.
2146
2147 See <http://v9fs.sf.net> for more information.
2148
2149 If unsure, say N.
2150
Jan Engelhardtea0985a2007-10-16 23:30:16 -07002151endif # NETWORK_FILESYSTEMS
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152
David Howells93614012006-09-30 20:45:40 +02002153if BLOCK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002154menu "Partition Types"
2155
2156source "fs/partitions/Kconfig"
2157
2158endmenu
David Howells93614012006-09-30 20:45:40 +02002159endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07002160
2161source "fs/nls/Kconfig"
David Teiglande7fd4172006-01-18 09:30:29 +00002162source "fs/dlm/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163
2164endmenu