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1#
2# File system configuration
3#
4
5menu "File systems"
6
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7if BLOCK
8
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9config 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
d23edbd3 15 module will be called ext2.
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16
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
b84c2157 32 select FS_POSIX_ACL
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33 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
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54config EXT2_FS_XIP
55 bool "Ext2 execute in place support"
0c426f26 56 depends on EXT2_FS && MMU
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57 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
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71config EXT3_FS
72 tristate "Ext3 journalling file system support"
b4e40a51 73 select JBD
1da177e4 74 help
cc2e2767 75 This is the journalling version of the Second extended file system
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76 (often called ext3), the de facto standard Linux file system
77 (method to organize files on a storage device) for hard disks.
78
cc2e2767 79 The journalling code included in this driver means you do not have
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80 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
d23edbd3 99 module will be called ext3.
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100
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
b84c2157 117 select FS_POSIX_ACL
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118 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
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139config EXT4_FS
140 tristate "The Extended 4 (ext4) filesystem"
dab291af 141 select JBD2
717d50e4 142 select CRC16
dab291af 143 help
03010a33 144 This is the next generation of the ext3 filesystem.
02ea2104 145
dab291af 146 Unlike the change from ext2 filesystem to ext3 filesystem,
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147 the on-disk format of ext4 is not forwards compatible with
148 ext3; it is based on extent maps and it supports 48-bit
149 physical block numbers. The ext4 filesystem also supports delayed
150 allocation, persistent preallocation, high resolution time stamps,
151 and a number of other features to improve performance and speed
152 up fsck time. For more information, please see the web pages at
153 http://ext4.wiki.kernel.org.
154
155 The ext4 filesystem will support mounting an ext3
156 filesystem; while there will be some performance gains from
157 the delayed allocation and inode table readahead, the best
158 performance gains will require enabling ext4 features in the
159 filesystem, or formating a new filesystem as an ext4
160 filesystem initially.
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161
162 To compile this file system support as a module, choose M here. The
473dc8ed 163 module will be called ext4.
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164
165 If unsure, say N.
166
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167config EXT4DEV_COMPAT
168 bool "Enable ext4dev compatibility"
169 depends on EXT4_FS
170 help
171 Starting with 2.6.28, the name of the ext4 filesystem was
172 renamed from ext4dev to ext4. Unfortunately there are some
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173 legacy userspace programs (such as klibc's fstype) have
174 "ext4dev" hardcoded.
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175
176 To enable backwards compatibility so that systems that are
177 still expecting to mount ext4 filesystems using ext4dev,
178 chose Y here. This feature will go away by 2.6.31, so
179 please arrange to get your userspace programs fixed!
180
181config EXT4_FS_XATTR
182 bool "Ext4 extended attributes"
183 depends on EXT4_FS
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184 default y
185 help
186 Extended attributes are name:value pairs associated with inodes by
187 the kernel or by users (see the attr(5) manual page, or visit
188 <http://acl.bestbits.at/> for details).
189
190 If unsure, say N.
191
03010a33 192 You need this for POSIX ACL support on ext4.
02ea2104 193
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194config EXT4_FS_POSIX_ACL
195 bool "Ext4 POSIX Access Control Lists"
196 depends on EXT4_FS_XATTR
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197 select FS_POSIX_ACL
198 help
199 POSIX Access Control Lists (ACLs) support permissions for users and
200 groups beyond the owner/group/world scheme.
201
202 To learn more about Access Control Lists, visit the POSIX ACLs for
203 Linux website <http://acl.bestbits.at/>.
204
205 If you don't know what Access Control Lists are, say N
206
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207config EXT4_FS_SECURITY
208 bool "Ext4 Security Labels"
209 depends on EXT4_FS_XATTR
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210 help
211 Security labels support alternative access control models
212 implemented by security modules like SELinux. This option
213 enables an extended attribute handler for file security
03010a33 214 labels in the ext4 filesystem.
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215
216 If you are not using a security module that requires using
217 extended attributes for file security labels, say N.
218
1da177e4 219config JBD
1da177e4 220 tristate
1da177e4 221 help
cc2e2767 222 This is a generic journalling layer for block devices. It is
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223 currently used by the ext3 file system, but it could also be
224 used to add journal support to other file systems or block
b4e40a51 225 devices such as RAID or LVM.
1da177e4 226
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227 If you are using the ext3 file system, you need to say Y here.
228 If you are not using ext3 then you will probably want to say N.
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229
230 To compile this device as a module, choose M here: the module will be
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231 called jbd. If you are compiling ext3 into the kernel, you
232 cannot compile this code as a module.
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233
234config JBD_DEBUG
235 bool "JBD (ext3) debugging support"
c2a9159c 236 depends on JBD && DEBUG_FS
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237 help
238 If you are using the ext3 journaled file system (or potentially any
239 other file system/device using JBD), this option allows you to
240 enable debugging output while the system is running, in order to
241 help track down any problems you are having. By default the
242 debugging output will be turned off.
243
244 If you select Y here, then you will be able to turn on debugging
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245 with "echo N > /sys/kernel/debug/jbd/jbd-debug", where N is a
246 number between 1 and 5, the higher the number, the more debugging
247 output is generated. To turn debugging off again, do
248 "echo 0 > /sys/kernel/debug/jbd/jbd-debug".
1da177e4 249
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250config JBD2
251 tristate
818d276c 252 select CRC32
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253 help
254 This is a generic journaling layer for block devices that support
255 both 32-bit and 64-bit block numbers. It is currently used by
2b4e30fb 256 the ext4 and OCFS2 filesystems, but it could also be used to add
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257 journal support to other file systems or block devices such
258 as RAID or LVM.
259
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260 If you are using ext4 or OCFS2, you need to say Y here.
261 If you are not using ext4 or OCFS2 then you will
262 probably want to say N.
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263
264 To compile this device as a module, choose M here. The module will be
2b4e30fb 265 called jbd2. If you are compiling ext4 or OCFS2 into the kernel,
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266 you cannot compile this code as a module.
267
268config JBD2_DEBUG
03010a33 269 bool "JBD2 (ext4) debugging support"
0f49d5d0 270 depends on JBD2 && DEBUG_FS
dab291af 271 help
03010a33 272 If you are using the ext4 journaled file system (or
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273 potentially any other filesystem/device using JBD2), this option
274 allows you to enable debugging output while the system is running,
275 in order to help track down any problems you are having.
276 By default, the debugging output will be turned off.
277
278 If you select Y here, then you will be able to turn on debugging
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279 with "echo N > /sys/kernel/debug/jbd2/jbd2-debug", where N is a
280 number between 1 and 5. The higher the number, the more debugging
281 output is generated. To turn debugging off again, do
282 "echo 0 > /sys/kernel/debug/jbd2/jbd2-debug".
dab291af 283
1da177e4 284config FS_MBCACHE
02ea2104 285# Meta block cache for Extended Attributes (ext2/ext3/ext4)
1da177e4 286 tristate
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287 depends on EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4_FS_XATTR
288 default y if EXT2_FS=y || EXT3_FS=y || EXT4_FS=y
289 default m if EXT2_FS=m || EXT3_FS=m || EXT4_FS=m
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290
291config REISERFS_FS
292 tristate "Reiserfs support"
293 help
294 Stores not just filenames but the files themselves in a balanced
cc2e2767 295 tree. Uses journalling.
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296
297 Balanced trees are more efficient than traditional file system
298 architectural foundations.
299
300 In general, ReiserFS is as fast as ext2, but is very efficient with
301 large directories and small files. Additional patches are needed
302 for NFS and quotas, please see <http://www.namesys.com/> for links.
303
304 It is more easily extended to have features currently found in
305 database and keyword search systems than block allocation based file
306 systems are. The next version will be so extended, and will support
307 plugins consistent with our motto ``It takes more than a license to
308 make source code open.''
309
310 Read <http://www.namesys.com/> to learn more about reiserfs.
311
312 Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com.
313
314 If you like it, you can pay us to add new features to it that you
315 need, buy a support contract, or pay us to port it to another OS.
316
317config REISERFS_CHECK
318 bool "Enable reiserfs debug mode"
319 depends on REISERFS_FS
320 help
321 If you set this to Y, then ReiserFS will perform every check it can
322 possibly imagine of its internal consistency throughout its
323 operation. It will also go substantially slower. More than once we
324 have forgotten that this was on, and then gone despondent over the
325 latest benchmarks.:-) Use of this option allows our team to go all
326 out in checking for consistency when debugging without fear of its
327 effect on end users. If you are on the verge of sending in a bug
328 report, say Y and you might get a useful error message. Almost
329 everyone should say N.
330
331config REISERFS_PROC_INFO
332 bool "Stats in /proc/fs/reiserfs"
880ebdc5 333 depends on REISERFS_FS && PROC_FS
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334 help
335 Create under /proc/fs/reiserfs a hierarchy of files, displaying
336 various ReiserFS statistics and internal data at the expense of
337 making your kernel or module slightly larger (+8 KB). This also
338 increases the amount of kernel memory required for each mount.
339 Almost everyone but ReiserFS developers and people fine-tuning
340 reiserfs or tracing problems should say N.
341
342config REISERFS_FS_XATTR
343 bool "ReiserFS extended attributes"
344 depends on REISERFS_FS
345 help
346 Extended attributes are name:value pairs associated with inodes by
347 the kernel or by users (see the attr(5) manual page, or visit
348 <http://acl.bestbits.at/> for details).
349
350 If unsure, say N.
351
352config REISERFS_FS_POSIX_ACL
353 bool "ReiserFS POSIX Access Control Lists"
354 depends on REISERFS_FS_XATTR
b84c2157 355 select FS_POSIX_ACL
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356 help
357 Posix Access Control Lists (ACLs) support permissions for users and
358 groups beyond the owner/group/world scheme.
359
360 To learn more about Access Control Lists, visit the Posix ACLs for
361 Linux website <http://acl.bestbits.at/>.
362
363 If you don't know what Access Control Lists are, say N
364
365config REISERFS_FS_SECURITY
366 bool "ReiserFS Security Labels"
367 depends on REISERFS_FS_XATTR
368 help
369 Security labels support alternative access control models
370 implemented by security modules like SELinux. This option
371 enables an extended attribute handler for file security
372 labels in the ReiserFS filesystem.
373
374 If you are not using a security module that requires using
375 extended attributes for file security labels, say N.
376
377config JFS_FS
378 tristate "JFS filesystem support"
379 select NLS
380 help
381 This is a port of IBM's Journaled Filesystem . More information is
382 available in the file <file:Documentation/filesystems/jfs.txt>.
383
384 If you do not intend to use the JFS filesystem, say N.
385
386config JFS_POSIX_ACL
387 bool "JFS POSIX Access Control Lists"
388 depends on JFS_FS
b84c2157 389 select FS_POSIX_ACL
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390 help
391 Posix Access Control Lists (ACLs) support permissions for users and
392 groups beyond the owner/group/world scheme.
393
394 To learn more about Access Control Lists, visit the Posix ACLs for
395 Linux website <http://acl.bestbits.at/>.
396
397 If you don't know what Access Control Lists are, say N
398
399config JFS_SECURITY
400 bool "JFS Security Labels"
401 depends on JFS_FS
402 help
403 Security labels support alternative access control models
404 implemented by security modules like SELinux. This option
405 enables an extended attribute handler for file security
406 labels in the jfs filesystem.
407
408 If you are not using a security module that requires using
409 extended attributes for file security labels, say N.
410
411config JFS_DEBUG
412 bool "JFS debugging"
413 depends on JFS_FS
414 help
415 If you are experiencing any problems with the JFS filesystem, say
416 Y here. This will result in additional debugging messages to be
417 written to the system log. Under normal circumstances, this
418 results in very little overhead.
419
420config JFS_STATISTICS
421 bool "JFS statistics"
422 depends on JFS_FS
423 help
424 Enabling this option will cause statistics from the JFS file system
425 to be made available to the user in the /proc/fs/jfs/ directory.
426
427config FS_POSIX_ACL
89206955 428# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs/nfs4)
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429#
430# NOTE: you can implement Posix ACLs without these helpers (XFS does).
431# Never use this symbol for ifdefs.
432#
433 bool
b84c2157 434 default n
1da177e4 435
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436config FILE_LOCKING
437 bool "Enable POSIX file locking API" if EMBEDDED
438 default y
439 help
440 This option enables standard file locking support, required
441 for filesystems like NFS and for the flock() system
442 call. Disabling this option saves about 11k.
443
1da177e4 444source "fs/xfs/Kconfig"
f7825dcf 445source "fs/gfs2/Kconfig"
1da177e4 446
b4e40a51 447config OCFS2_FS
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448 tristate "OCFS2 file system support"
449 depends on NET && SYSFS
b4e40a51 450 select CONFIGFS_FS
2b4e30fb 451 select JBD2
b4e40a51 452 select CRC32
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453 help
454 OCFS2 is a general purpose extent based shared disk cluster file
455 system with many similarities to ext3. It supports 64 bit inode
456 numbers, and has automatically extending metadata groups which may
457 also make it attractive for non-clustered use.
458
459 You'll want to install the ocfs2-tools package in order to at least
460 get "mount.ocfs2".
461
462 Project web page: http://oss.oracle.com/projects/ocfs2
463 Tools web page: http://oss.oracle.com/projects/ocfs2-tools
464 OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/
465
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466 For more information on OCFS2, see the file
467 <file:Documentation/filesystems/ocfs2.txt>.
b4e40a51 468
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469config OCFS2_FS_O2CB
470 tristate "O2CB Kernelspace Clustering"
471 depends on OCFS2_FS
472 default y
473 help
474 OCFS2 includes a simple kernelspace clustering package, the OCFS2
475 Cluster Base. It only requires a very small userspace component
476 to configure it. This comes with the standard ocfs2-tools package.
477 O2CB is limited to maintaining a cluster for OCFS2 file systems.
478 It cannot manage any other cluster applications.
479
480 It is always safe to say Y here, as the clustering method is
481 run-time selectable.
482
483config OCFS2_FS_USERSPACE_CLUSTER
484 tristate "OCFS2 Userspace Clustering"
485 depends on OCFS2_FS && DLM
486 default y
487 help
488 This option will allow OCFS2 to use userspace clustering services
489 in conjunction with the DLM in fs/dlm. If you are using a
490 userspace cluster manager, say Y here.
491
492 It is safe to say Y, as the clustering method is run-time
493 selectable.
494
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495config OCFS2_FS_STATS
496 bool "OCFS2 statistics"
497 depends on OCFS2_FS
498 default y
499 help
500 This option allows some fs statistics to be captured. Enabling
501 this option may increase the memory consumption.
502
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503config OCFS2_DEBUG_MASKLOG
504 bool "OCFS2 logging support"
505 depends on OCFS2_FS
506 default y
507 help
508 The ocfs2 filesystem has an extensive logging system. The system
509 allows selection of events to log via files in /sys/o2cb/logmask/.
510 This option will enlarge your kernel, but it allows debugging of
511 ocfs2 filesystem issues.
512
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513config OCFS2_DEBUG_FS
514 bool "OCFS2 expensive checks"
515 depends on OCFS2_FS
516 default n
517 help
518 This option will enable expensive consistency checks. Enable
519 this option for debugging only as it is likely to decrease
520 performance of the filesystem.
521
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522config OCFS2_COMPAT_JBD
523 bool "Use JBD for compatibility"
524 depends on OCFS2_FS
525 default n
526 select JBD
527 help
528 The ocfs2 filesystem now uses JBD2 for its journalling. JBD2
529 is backwards compatible with JBD. It is safe to say N here.
530 However, if you really want to use the original JBD, say Y here.
531
25fad945 532endif # BLOCK
1da177e4 533
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534config DNOTIFY
535 bool "Dnotify support"
536 default y
537 help
538 Dnotify is a directory-based per-fd file change notification system
539 that uses signals to communicate events to user-space. There exist
540 superior alternatives, but some applications may still rely on
541 dnotify.
1da177e4 542
25fad945 543 If unsure, say Y.
9361401e 544
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545config INOTIFY
546 bool "Inotify file change notification support"
547 default y
548 ---help---
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549 Say Y here to enable inotify support. Inotify is a file change
550 notification system and a replacement for dnotify. Inotify fixes
551 numerous shortcomings in dnotify and introduces several new features
552 including multiple file events, one-shot support, and unmount
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553 notification.
554
e403149c 555 For more information, see <file:Documentation/filesystems/inotify.txt>
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556
557 If unsure, say Y.
558
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559config INOTIFY_USER
560 bool "Inotify support for userspace"
561 depends on INOTIFY
562 default y
563 ---help---
564 Say Y here to enable inotify support for userspace, including the
565 associated system calls. Inotify allows monitoring of both files and
566 directories via a single open fd. Events are read from the file
567 descriptor, which is also select()- and poll()-able.
568
e403149c 569 For more information, see <file:Documentation/filesystems/inotify.txt>
2d9048e2 570
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571 If unsure, say Y.
572
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573config QUOTA
574 bool "Quota support"
575 help
576 If you say Y here, you will be able to set per user limits for disk
577 usage (also called disk quotas). Currently, it works for the
578 ext2, ext3, and reiserfs file system. ext3 also supports journalled
579 quotas for which you don't need to run quotacheck(8) after an unclean
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580 shutdown.
581 For further details, read the Quota mini-HOWTO, available from
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582 <http://www.tldp.org/docs.html#howto>, or the documentation provided
583 with the quota tools. Probably the quota support is only useful for
584 multi user systems. If unsure, say N.
585
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586config QUOTA_NETLINK_INTERFACE
587 bool "Report quota messages through netlink interface"
588 depends on QUOTA && NET
589 help
590 If you say Y here, quota warnings (about exceeding softlimit, reaching
591 hardlimit, etc.) will be reported through netlink interface. If unsure,
592 say Y.
593
594config PRINT_QUOTA_WARNING
595 bool "Print quota warnings to console (OBSOLETE)"
596 depends on QUOTA
597 default y
598 help
599 If you say Y here, quota warnings (about exceeding softlimit, reaching
600 hardlimit, etc.) will be printed to the process' controlling terminal.
601 Note that this behavior is currently deprecated and may go away in
602 future. Please use notification via netlink socket instead.
603
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604config QFMT_V1
605 tristate "Old quota format support"
606 depends on QUOTA
607 help
608 This quota format was (is) used by kernels earlier than 2.4.22. If
609 you have quota working and you don't want to convert to new quota
610 format say Y here.
611
612config QFMT_V2
613 tristate "Quota format v2 support"
614 depends on QUOTA
615 help
616 This quota format allows using quotas with 32-bit UIDs/GIDs. If you
919532a5 617 need this functionality say Y here.
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618
619config QUOTACTL
620 bool
621 depends on XFS_QUOTA || QUOTA
622 default y
623
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624config AUTOFS_FS
625 tristate "Kernel automounter support"
626 help
627 The automounter is a tool to automatically mount remote file systems
628 on demand. This implementation is partially kernel-based to reduce
629 overhead in the already-mounted case; this is unlike the BSD
630 automounter (amd), which is a pure user space daemon.
631
632 To use the automounter you need the user-space tools from the autofs
633 package; you can find the location in <file:Documentation/Changes>.
634 You also want to answer Y to "NFS file system support", below.
635
636 If you want to use the newer version of the automounter with more
637 features, say N here and say Y to "Kernel automounter v4 support",
638 below.
639
640 To compile this support as a module, choose M here: the module will be
641 called autofs.
642
643 If you are not a part of a fairly large, distributed network, you
644 probably do not need an automounter, and can say N here.
645
646config AUTOFS4_FS
647 tristate "Kernel automounter version 4 support (also supports v3)"
648 help
649 The automounter is a tool to automatically mount remote file systems
650 on demand. This implementation is partially kernel-based to reduce
651 overhead in the already-mounted case; this is unlike the BSD
652 automounter (amd), which is a pure user space daemon.
653
654 To use the automounter you need the user-space tools from
655 <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
656 want to answer Y to "NFS file system support", below.
657
658 To compile this support as a module, choose M here: the module will be
659 called autofs4. You will need to add "alias autofs autofs4" to your
660 modules configuration file.
661
662 If you are not a part of a fairly large, distributed network or
663 don't have a laptop which needs to dynamically reconfigure to the
664 local network, you probably do not need an automounter, and can say
665 N here.
666
04578f17
MS
667config FUSE_FS
668 tristate "Filesystem in Userspace support"
669 help
670 With FUSE it is possible to implement a fully functional filesystem
671 in a userspace program.
672
673 There's also companion library: libfuse. This library along with
674 utilities is available from the FUSE homepage:
675 <http://fuse.sourceforge.net/>
676
909021ea
MS
677 See <file:Documentation/filesystems/fuse.txt> for more information.
678 See <file:Documentation/Changes> for needed library/utility version.
679
04578f17
MS
680 If you want to develop a userspace FS, or if you want to use
681 a filesystem based on FUSE, answer Y or M.
682
f2fbc6c2
RD
683config GENERIC_ACL
684 bool
685 select FS_POSIX_ACL
686
9361401e 687if BLOCK
1da177e4
LT
688menu "CD-ROM/DVD Filesystems"
689
690config ISO9660_FS
691 tristate "ISO 9660 CDROM file system support"
692 help
693 This is the standard file system used on CD-ROMs. It was previously
694 known as "High Sierra File System" and is called "hsfs" on other
695 Unix systems. The so-called Rock-Ridge extensions which allow for
696 long Unix filenames and symbolic links are also supported by this
697 driver. If you have a CD-ROM drive and want to do more with it than
698 just listen to audio CDs and watch its LEDs, say Y (and read
699 <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO,
700 available from <http://www.tldp.org/docs.html#howto>), thereby
701 enlarging your kernel by about 27 KB; otherwise say N.
702
703 To compile this file system support as a module, choose M here: the
704 module will be called isofs.
705
706config JOLIET
707 bool "Microsoft Joliet CDROM extensions"
708 depends on ISO9660_FS
709 select NLS
710 help
711 Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
712 which allows for long filenames in unicode format (unicode is the
713 new 16 bit character code, successor to ASCII, which encodes the
714 characters of almost all languages of the world; see
715 <http://www.unicode.org/> for more information). Say Y here if you
716 want to be able to read Joliet CD-ROMs under Linux.
717
718config ZISOFS
719 bool "Transparent decompression extension"
720 depends on ISO9660_FS
721 select ZLIB_INFLATE
722 help
723 This is a Linux-specific extension to RockRidge which lets you store
724 data in compressed form on a CD-ROM and have it transparently
725 decompressed when the CD-ROM is accessed. See
726 <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
727 necessary to create such a filesystem. Say Y here if you want to be
728 able to read such compressed CD-ROMs.
729
1da177e4
LT
730config UDF_FS
731 tristate "UDF file system support"
f845fced 732 select CRC_ITU_T
1da177e4
LT
733 help
734 This is the new file system used on some CD-ROMs and DVDs. Say Y if
735 you intend to mount DVD discs or CDRW's written in packet mode, or
736 if written to by other UDF utilities, such as DirectCD.
737 Please read <file:Documentation/filesystems/udf.txt>.
738
739 To compile this file system support as a module, choose M here: the
740 module will be called udf.
741
742 If unsure, say N.
743
744config UDF_NLS
745 bool
746 default y
747 depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
748
749endmenu
25fad945 750endif # BLOCK
1da177e4 751
9361401e 752if BLOCK
1da177e4
LT
753menu "DOS/FAT/NT Filesystems"
754
755config FAT_FS
756 tristate
757 select NLS
758 help
759 If you want to use one of the FAT-based file systems (the MS-DOS and
760 VFAT (Windows 95) file systems), then you must say Y or M here
761 to include FAT support. You will then be able to mount partitions or
762 diskettes with FAT-based file systems and transparently access the
763 files on them, i.e. MSDOS files will look and behave just like all
764 other Unix files.
765
766 This FAT support is not a file system in itself, it only provides
767 the foundation for the other file systems. You will have to say Y or
768 M to at least one of "MSDOS fs support" or "VFAT fs support" in
769 order to make use of it.
770
771 Another way to read and write MSDOS floppies and hard drive
772 partitions from within Linux (but not transparently) is with the
773 mtools ("man mtools") program suite. You don't need to say Y here in
774 order to do that.
775
776 If you need to move large files on floppies between a DOS and a
777 Linux box, say Y here, mount the floppy under Linux with an MSDOS
778 file system and use GNU tar's M option. GNU tar is a program
779 available for Unix and DOS ("man tar" or "info tar").
780
1da177e4
LT
781 The FAT support will enlarge your kernel by about 37 KB. If unsure,
782 say Y.
783
784 To compile this as a module, choose M here: the module will be called
785 fat. Note that if you compile the FAT support as a module, you
786 cannot compile any of the FAT-based file systems into the kernel
787 -- they will have to be modules as well.
788
789config MSDOS_FS
790 tristate "MSDOS fs support"
791 select FAT_FS
792 help
793 This allows you to mount MSDOS partitions of your hard drive (unless
794 they are compressed; to access compressed MSDOS partitions under
795 Linux, you can either use the DOS emulator DOSEMU, described in the
796 DOSEMU-HOWTO, available from
797 <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
798 <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
799 intend to use dosemu with a non-compressed MSDOS partition, say Y
800 here) and MSDOS floppies. This means that file access becomes
801 transparent, i.e. the MSDOS files look and behave just like all
802 other Unix files.
803
804 If you have Windows 95 or Windows NT installed on your MSDOS
805 partitions, you should use the VFAT file system (say Y to "VFAT fs
806 support" below), or you will not be able to see the long filenames
807 generated by Windows 95 / Windows NT.
808
809 This option will enlarge your kernel by about 7 KB. If unsure,
810 answer Y. This will only work if you said Y to "DOS FAT fs support"
811 as well. To compile this as a module, choose M here: the module will
812 be called msdos.
813
814config VFAT_FS
815 tristate "VFAT (Windows-95) fs support"
816 select FAT_FS
817 help
818 This option provides support for normal Windows file systems with
819 long filenames. That includes non-compressed FAT-based file systems
820 used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
821 programs from the mtools package.
822
823 The VFAT support enlarges your kernel by about 10 KB and it only
824 works if you said Y to the "DOS FAT fs support" above. Please read
825 the file <file:Documentation/filesystems/vfat.txt> for details. If
826 unsure, say Y.
827
828 To compile this as a module, choose M here: the module will be called
829 vfat.
830
831config FAT_DEFAULT_CODEPAGE
832 int "Default codepage for FAT"
833 depends on MSDOS_FS || VFAT_FS
834 default 437
835 help
836 This option should be set to the codepage of your FAT filesystems.
837 It can be overridden with the "codepage" mount option.
838 See <file:Documentation/filesystems/vfat.txt> for more information.
839
840config FAT_DEFAULT_IOCHARSET
841 string "Default iocharset for FAT"
842 depends on VFAT_FS
843 default "iso8859-1"
844 help
845 Set this to the default input/output character set you'd
846 like FAT to use. It should probably match the character set
847 that most of your FAT filesystems use, and can be overridden
848 with the "iocharset" mount option for FAT filesystems.
849 Note that "utf8" is not recommended for FAT filesystems.
850 If unsure, you shouldn't set "utf8" here.
851 See <file:Documentation/filesystems/vfat.txt> for more information.
852
853config NTFS_FS
854 tristate "NTFS file system support"
855 select NLS
856 help
857 NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
858
859 Saying Y or M here enables read support. There is partial, but
860 safe, write support available. For write support you must also
861 say Y to "NTFS write support" below.
862
863 There are also a number of user-space tools available, called
864 ntfsprogs. These include ntfsundelete and ntfsresize, that work
865 without NTFS support enabled in the kernel.
866
867 This is a rewrite from scratch of Linux NTFS support and replaced
868 the old NTFS code starting with Linux 2.5.11. A backport to
869 the Linux 2.4 kernel series is separately available as a patch
870 from the project web site.
871
872 For more information see <file:Documentation/filesystems/ntfs.txt>
337e2ab5 873 and <http://www.linux-ntfs.org/>.
1da177e4
LT
874
875 To compile this file system support as a module, choose M here: the
876 module will be called ntfs.
877
878 If you are not using Windows NT, 2000, XP or 2003 in addition to
879 Linux on your computer it is safe to say N.
880
881config NTFS_DEBUG
882 bool "NTFS debugging support"
883 depends on NTFS_FS
884 help
885 If you are experiencing any problems with the NTFS file system, say
886 Y here. This will result in additional consistency checks to be
887 performed by the driver as well as additional debugging messages to
888 be written to the system log. Note that debugging messages are
889 disabled by default. To enable them, supply the option debug_msgs=1
890 at the kernel command line when booting the kernel or as an option
891 to insmod when loading the ntfs module. Once the driver is active,
892 you can enable debugging messages by doing (as root):
893 echo 1 > /proc/sys/fs/ntfs-debug
894 Replacing the "1" with "0" would disable debug messages.
895
896 If you leave debugging messages disabled, this results in little
897 overhead, but enabling debug messages results in very significant
898 slowdown of the system.
899
900 When reporting bugs, please try to have available a full dump of
901 debugging messages while the misbehaviour was occurring.
902
903config NTFS_RW
904 bool "NTFS write support"
905 depends on NTFS_FS
906 help
907 This enables the partial, but safe, write support in the NTFS driver.
908
909 The only supported operation is overwriting existing files, without
910 changing the file length. No file or directory creation, deletion or
911 renaming is possible. Note only non-resident files can be written to
912 so you may find that some very small files (<500 bytes or so) cannot
913 be written to.
914
915 While we cannot guarantee that it will not damage any data, we have
916 so far not received a single report where the driver would have
917 damaged someones data so we assume it is perfectly safe to use.
918
919 Note: While write support is safe in this version (a rewrite from
920 scratch of the NTFS support), it should be noted that the old NTFS
921 write support, included in Linux 2.5.10 and before (since 1997),
922 is not safe.
923
924 This is currently useful with TopologiLinux. TopologiLinux is run
925 on top of any DOS/Microsoft Windows system without partitioning your
926 hard disk. Unlike other Linux distributions TopologiLinux does not
927 need its own partition. For more information see
928 <http://topologi-linux.sourceforge.net/>
929
930 It is perfectly safe to say N here.
931
932endmenu
25fad945 933endif # BLOCK
1da177e4
LT
934
935menu "Pseudo filesystems"
936
6eedf8d3 937source "fs/proc/Kconfig"
b89a8171 938
1da177e4
LT
939config SYSFS
940 bool "sysfs file system support" if EMBEDDED
941 default y
942 help
943 The sysfs filesystem is a virtual filesystem that the kernel uses to
944 export internal kernel objects, their attributes, and their
945 relationships to one another.
946
947 Users can use sysfs to ascertain useful information about the running
948 kernel, such as the devices the kernel has discovered on each bus and
949 which driver each is bound to. sysfs can also be used to tune devices
950 and other kernel subsystems.
951
952 Some system agents rely on the information in sysfs to operate.
953 /sbin/hotplug uses device and object attributes in sysfs to assist in
03a67a46 954 delegating policy decisions, like persistently naming devices.
1da177e4
LT
955
956 sysfs is currently used by the block subsystem to mount the root
957 partition. If sysfs is disabled you must specify the boot device on
958 the kernel boot command line via its major and minor numbers. For
959 example, "root=03:01" for /dev/hda1.
960
961 Designers of embedded systems may wish to say N here to conserve space.
962
1da177e4
LT
963config TMPFS
964 bool "Virtual memory file system support (former shm fs)"
965 help
966 Tmpfs is a file system which keeps all files in virtual memory.
967
968 Everything in tmpfs is temporary in the sense that no files will be
969 created on your hard drive. The files live in memory and swap
970 space. If you unmount a tmpfs instance, everything stored therein is
971 lost.
972
973 See <file:Documentation/filesystems/tmpfs.txt> for details.
974
39f0247d
AG
975config TMPFS_POSIX_ACL
976 bool "Tmpfs POSIX Access Control Lists"
977 depends on TMPFS
978 select GENERIC_ACL
979 help
980 POSIX Access Control Lists (ACLs) support permissions for users and
981 groups beyond the owner/group/world scheme.
982
983 To learn more about Access Control Lists, visit the POSIX ACLs for
984 Linux website <http://acl.bestbits.at/>.
985
986 If you don't know what Access Control Lists are, say N.
987
1da177e4
LT
988config HUGETLBFS
989 bool "HugeTLB file system support"
53492b1d
GS
990 depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || \
991 (S390 && 64BIT) || BROKEN
dda27d1a
AO
992 help
993 hugetlbfs is a filesystem backing for HugeTLB pages, based on
994 ramfs. For architectures that support it, say Y here and read
995 <file:Documentation/vm/hugetlbpage.txt> for details.
996
997 If unsure, say N.
1da177e4
LT
998
999config HUGETLB_PAGE
1000 def_bool HUGETLBFS
1001
7063fbf2 1002config CONFIGFS_FS
02ac0499
JB
1003 tristate "Userspace-driven configuration filesystem"
1004 depends on SYSFS
7063fbf2
JB
1005 help
1006 configfs is a ram-based filesystem that provides the converse
1007 of sysfs's functionality. Where sysfs is a filesystem-based
1008 view of kernel objects, configfs is a filesystem-based manager
1009 of kernel objects, or config_items.
1010
1011 Both sysfs and configfs can and should exist together on the
1012 same system. One is not a replacement for the other.
1013
1da177e4
LT
1014endmenu
1015
1016menu "Miscellaneous filesystems"
1017
1018config ADFS_FS
1019 tristate "ADFS file system support (EXPERIMENTAL)"
9361401e 1020 depends on BLOCK && EXPERIMENTAL
1da177e4
LT
1021 help
1022 The Acorn Disc Filing System is the standard file system of the
1023 RiscOS operating system which runs on Acorn's ARM-based Risc PC
1024 systems and the Acorn Archimedes range of machines. If you say Y
1025 here, Linux will be able to read from ADFS partitions on hard drives
1026 and from ADFS-formatted floppy discs. If you also want to be able to
1027 write to those devices, say Y to "ADFS write support" below.
1028
1029 The ADFS partition should be the first partition (i.e.,
1030 /dev/[hs]d?1) on each of your drives. Please read the file
1031 <file:Documentation/filesystems/adfs.txt> for further details.
1032
1033 To compile this code as a module, choose M here: the module will be
1034 called adfs.
1035
1036 If unsure, say N.
1037
1038config ADFS_FS_RW
1039 bool "ADFS write support (DANGEROUS)"
1040 depends on ADFS_FS
1041 help
1042 If you say Y here, you will be able to write to ADFS partitions on
1043 hard drives and ADFS-formatted floppy disks. This is experimental
1044 codes, so if you're unsure, say N.
1045
1046config AFFS_FS
1047 tristate "Amiga FFS file system support (EXPERIMENTAL)"
9361401e 1048 depends on BLOCK && EXPERIMENTAL
1da177e4
LT
1049 help
1050 The Fast File System (FFS) is the common file system used on hard
1051 disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y
1052 if you want to be able to read and write files from and to an Amiga
1053 FFS partition on your hard drive. Amiga floppies however cannot be
1054 read with this driver due to an incompatibility of the floppy
1055 controller used in an Amiga and the standard floppy controller in
1056 PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
1057 and <file:fs/affs/Changes>.
1058
1059 With this driver you can also mount disk files used by Bernd
1060 Schmidt's Un*X Amiga Emulator
1061 (<http://www.freiburg.linux.de/~uae/>).
1062 If you want to do this, you will also need to say Y or M to "Loop
1063 device support", above.
1064
1065 To compile this file system support as a module, choose M here: the
1066 module will be called affs. If unsure, say N.
1067
237fead6
MH
1068config ECRYPT_FS
1069 tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
88b4a07e 1070 depends on EXPERIMENTAL && KEYS && CRYPTO && NET
237fead6
MH
1071 help
1072 Encrypted filesystem that operates on the VFS layer. See
e403149c 1073 <file:Documentation/filesystems/ecryptfs.txt> to learn more about
237fead6
MH
1074 eCryptfs. Userspace components are required and can be
1075 obtained from <http://ecryptfs.sf.net>.
1076
1077 To compile this file system support as a module, choose M here: the
1078 module will be called ecryptfs.
1079
1da177e4
LT
1080config HFS_FS
1081 tristate "Apple Macintosh file system support (EXPERIMENTAL)"
9361401e 1082 depends on BLOCK && EXPERIMENTAL
878129a3 1083 select NLS
1da177e4
LT
1084 help
1085 If you say Y here, you will be able to mount Macintosh-formatted
1086 floppy disks and hard drive partitions with full read-write access.
889c94a1
JFS
1087 Please read <file:Documentation/filesystems/hfs.txt> to learn about
1088 the available mount options.
1da177e4
LT
1089
1090 To compile this file system support as a module, choose M here: the
1091 module will be called hfs.
1092
1093config HFSPLUS_FS
1094 tristate "Apple Extended HFS file system support"
9361401e 1095 depends on BLOCK
1da177e4
LT
1096 select NLS
1097 select NLS_UTF8
1098 help
1099 If you say Y here, you will be able to mount extended format
1100 Macintosh-formatted hard drive partitions with full read-write access.
1101
1102 This file system is often called HFS+ and was introduced with
1103 MacOS 8. It includes all Mac specific filesystem data such as
1104 data forks and creator codes, but it also has several UNIX
1105 style features such as file ownership and permissions.
1106
1107config BEFS_FS
1108 tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
9361401e 1109 depends on BLOCK && EXPERIMENTAL
1da177e4
LT
1110 select NLS
1111 help
1112 The BeOS File System (BeFS) is the native file system of Be, Inc's
1113 BeOS. Notable features include support for arbitrary attributes
3cb2fccc 1114 on files and directories, and database-like indices on selected
1da177e4
LT
1115 attributes. (Also note that this driver doesn't make those features
1116 available at this time). It is a 64 bit filesystem, so it supports
44c09201 1117 extremely large volumes and files.
1da177e4
LT
1118
1119 If you use this filesystem, you should also say Y to at least one
1120 of the NLS (native language support) options below.
1121
1122 If you don't know what this is about, say N.
1123
1124 To compile this as a module, choose M here: the module will be
1125 called befs.
1126
1127config BEFS_DEBUG
1128 bool "Debug BeFS"
1129 depends on BEFS_FS
1130 help
1131 If you say Y here, you can use the 'debug' mount option to enable
c7736339 1132 debugging output from the driver.
1da177e4
LT
1133
1134config BFS_FS
1135 tristate "BFS file system support (EXPERIMENTAL)"
9361401e 1136 depends on BLOCK && EXPERIMENTAL
1da177e4
LT
1137 help
1138 Boot File System (BFS) is a file system used under SCO UnixWare to
1139 allow the bootloader access to the kernel image and other important
1140 files during the boot process. It is usually mounted under /stand
1141 and corresponds to the slice marked as "STAND" in the UnixWare
1142 partition. You should say Y if you want to read or write the files
1143 on your /stand slice from within Linux. You then also need to say Y
1144 to "UnixWare slices support", below. More information about the BFS
1145 file system is contained in the file
1146 <file:Documentation/filesystems/bfs.txt>.
1147
1148 If you don't know what this is about, say N.
1149
1150 To compile this as a module, choose M here: the module will be called
1151 bfs. Note that the file system of your root partition (the one
1152 containing the directory /) cannot be compiled as a module.
1153
1154
1155
1156config EFS_FS
1157 tristate "EFS file system support (read only) (EXPERIMENTAL)"
9361401e 1158 depends on BLOCK && EXPERIMENTAL
1da177e4
LT
1159 help
1160 EFS is an older file system used for non-ISO9660 CD-ROMs and hard
1161 disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
1162 uses the XFS file system for hard disk partitions however).
1163
1164 This implementation only offers read-only access. If you don't know
1165 what all this is about, it's safe to say N. For more information
1166 about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
1167
1168 To compile the EFS file system support as a module, choose M here: the
1169 module will be called efs.
1170
31db6e9e 1171source "fs/jffs2/Kconfig"
0d7eff87
AB
1172# UBIFS File system configuration
1173source "fs/ubifs/Kconfig"
1174
1da177e4
LT
1175config CRAMFS
1176 tristate "Compressed ROM file system support (cramfs)"
9361401e 1177 depends on BLOCK
1da177e4
LT
1178 select ZLIB_INFLATE
1179 help
1180 Saying Y here includes support for CramFs (Compressed ROM File
1181 System). CramFs is designed to be a simple, small, and compressed
1182 file system for ROM based embedded systems. CramFs is read-only,
1183 limited to 256MB file systems (with 16MB files), and doesn't support
1184 16/32 bits uid/gid, hard links and timestamps.
1185
1186 See <file:Documentation/filesystems/cramfs.txt> and
1187 <file:fs/cramfs/README> for further information.
1188
1189 To compile this as a module, choose M here: the module will be called
1190 cramfs. Note that the root file system (the one containing the
1191 directory /) cannot be compiled as a module.
1192
1193 If unsure, say N.
1194
1195config VXFS_FS
1196 tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
9361401e 1197 depends on BLOCK
1da177e4
LT
1198 help
1199 FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
1200 file system format. VERITAS VxFS(TM) is the standard file system
1201 of SCO UnixWare (and possibly others) and optionally available
1202 for Sunsoft Solaris, HP-UX and many other operating systems.
1203 Currently only readonly access is supported.
1204
1205 NOTE: the file system type as used by mount(1), mount(2) and
1206 fstab(5) is 'vxfs' as it describes the file system format, not
1207 the actual driver.
1208
1209 To compile this as a module, choose M here: the module will be
1210 called freevxfs. If unsure, say N.
1211
25fad945
RD
1212config MINIX_FS
1213 tristate "Minix file system support"
1214 depends on BLOCK
1215 help
1216 Minix is a simple operating system used in many classes about OS's.
1217 The minix file system (method to organize files on a hard disk
1218 partition or a floppy disk) was the original file system for Linux,
1219 but has been superseded by the second extended file system ext2fs.
1220 You don't want to use the minix file system on your hard disk
1221 because of certain built-in restrictions, but it is sometimes found
1222 on older Linux floppy disks. This option will enlarge your kernel
1223 by about 28 KB. If unsure, say N.
1224
1225 To compile this file system support as a module, choose M here: the
1226 module will be called minix. Note that the file system of your root
1227 partition (the one containing the directory /) cannot be compiled as
1228 a module.
1229
63ca8ce2
BC
1230config OMFS_FS
1231 tristate "SonicBlue Optimized MPEG File System support"
1232 depends on BLOCK
1233 select CRC_ITU_T
1234 help
1235 This is the proprietary file system used by the Rio Karma music
1236 player and ReplayTV DVR. Despite the name, this filesystem is not
1237 more efficient than a standard FS for MPEG files, in fact likely
1238 the opposite is true. Say Y if you have either of these devices
1239 and wish to mount its disk.
1240
1241 To compile this file system support as a module, choose M here: the
1242 module will be called omfs. If unsure, say N.
1da177e4
LT
1243
1244config HPFS_FS
1245 tristate "OS/2 HPFS file system support"
9361401e 1246 depends on BLOCK
1da177e4
LT
1247 help
1248 OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
1249 is the file system used for organizing files on OS/2 hard disk
1250 partitions. Say Y if you want to be able to read files from and
1251 write files to an OS/2 HPFS partition on your hard drive. OS/2
1252 floppies however are in regular MSDOS format, so you don't need this
1253 option in order to be able to read them. Read
1254 <file:Documentation/filesystems/hpfs.txt>.
1255
1256 To compile this file system support as a module, choose M here: the
1257 module will be called hpfs. If unsure, say N.
1258
1259
1da177e4
LT
1260config QNX4FS_FS
1261 tristate "QNX4 file system support (read only)"
9361401e 1262 depends on BLOCK
1da177e4
LT
1263 help
1264 This is the file system used by the real-time operating systems
1265 QNX 4 and QNX 6 (the latter is also called QNX RTP).
1266 Further information is available at <http://www.qnx.com/>.
1267 Say Y if you intend to mount QNX hard disks or floppies.
1268 Unless you say Y to "QNX4FS read-write support" below, you will
1269 only be able to read these file systems.
1270
1271 To compile this file system support as a module, choose M here: the
1272 module will be called qnx4.
1273
1274 If you don't know whether you need it, then you don't need it:
1275 answer N.
1276
1277config QNX4FS_RW
1278 bool "QNX4FS write support (DANGEROUS)"
1279 depends on QNX4FS_FS && EXPERIMENTAL && BROKEN
1280 help
1281 Say Y if you want to test write support for QNX4 file systems.
1282
1283 It's currently broken, so for now:
1284 answer N.
1285
25fad945
RD
1286config ROMFS_FS
1287 tristate "ROM file system support"
1288 depends on BLOCK
1289 ---help---
1290 This is a very small read-only file system mainly intended for
1291 initial ram disks of installation disks, but it could be used for
1292 other read-only media as well. Read
1293 <file:Documentation/filesystems/romfs.txt> for details.
1294
1295 To compile this file system support as a module, choose M here: the
1296 module will be called romfs. Note that the file system of your
1297 root partition (the one containing the directory /) cannot be a
1298 module.
1299
1300 If you don't know whether you need it, then you don't need it:
1301 answer N.
1da177e4
LT
1302
1303
1304config SYSV_FS
1305 tristate "System V/Xenix/V7/Coherent file system support"
9361401e 1306 depends on BLOCK
1da177e4
LT
1307 help
1308 SCO, Xenix and Coherent are commercial Unix systems for Intel
1309 machines, and Version 7 was used on the DEC PDP-11. Saying Y
1310 here would allow you to read from their floppies and hard disk
1311 partitions.
1312
1313 If you have floppies or hard disk partitions like that, it is likely
1314 that they contain binaries from those other Unix systems; in order
cab00891 1315 to run these binaries, you will want to install linux-abi which is
1da177e4
LT
1316 a set of kernel modules that lets you run SCO, Xenix, Wyse,
1317 UnixWare, Dell Unix and System V programs under Linux. It is
1318 available via FTP (user: ftp) from
1319 <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
1320 NOTE: that will work only for binaries from Intel-based systems;
1321 PDP ones will have to wait until somebody ports Linux to -11 ;-)
1322
1323 If you only intend to mount files from some other Unix over the
1324 network using NFS, you don't need the System V file system support
1325 (but you need NFS file system support obviously).
1326
1327 Note that this option is generally not needed for floppies, since a
1328 good portable way to transport files and directories between unixes
1329 (and even other operating systems) is given by the tar program ("man
1330 tar" or preferably "info tar"). Note also that this option has
1331 nothing whatsoever to do with the option "System V IPC". Read about
1332 the System V file system in
1333 <file:Documentation/filesystems/sysv-fs.txt>.
1334 Saying Y here will enlarge your kernel by about 27 KB.
1335
1336 To compile this as a module, choose M here: the module will be called
1337 sysv.
1338
1339 If you haven't heard about all of this before, it's safe to say N.
1340
1341
1da177e4
LT
1342config UFS_FS
1343 tristate "UFS file system support (read only)"
9361401e 1344 depends on BLOCK
1da177e4
LT
1345 help
1346 BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
1347 OpenBSD and NeXTstep) use a file system called UFS. Some System V
1348 Unixes can create and mount hard disk partitions and diskettes using
1349 this file system as well. Saying Y here will allow you to read from
1350 these partitions; if you also want to write to them, say Y to the
1351 experimental "UFS file system write support", below. Please read the
1352 file <file:Documentation/filesystems/ufs.txt> for more information.
1353
1354 The recently released UFS2 variant (used in FreeBSD 5.x) is
1355 READ-ONLY supported.
1356
1da177e4
LT
1357 Note that this option is generally not needed for floppies, since a
1358 good portable way to transport files and directories between unixes
1359 (and even other operating systems) is given by the tar program ("man
1360 tar" or preferably "info tar").
1361
1362 When accessing NeXTstep files, you may need to convert them from the
1363 NeXT character set to the Latin1 character set; use the program
1364 recode ("info recode") for this purpose.
1365
1366 To compile the UFS file system support as a module, choose M here: the
1367 module will be called ufs.
1368
1369 If you haven't heard about all of this before, it's safe to say N.
1370
1371config UFS_FS_WRITE
1372 bool "UFS file system write support (DANGEROUS)"
5afb3145 1373 depends on UFS_FS && EXPERIMENTAL
1da177e4
LT
1374 help
1375 Say Y here if you want to try writing to UFS partitions. This is
1376 experimental, so you should back up your UFS partitions beforehand.
1377
abf5d15f
ED
1378config UFS_DEBUG
1379 bool "UFS debugging"
1380 depends on UFS_FS
1381 help
1382 If you are experiencing any problems with the UFS filesystem, say
1383 Y here. This will result in _many_ additional debugging messages to be
1384 written to the system log.
1385
1da177e4
LT
1386endmenu
1387
ea0985ad
JE
1388menuconfig NETWORK_FILESYSTEMS
1389 bool "Network File Systems"
1390 default y
1da177e4 1391 depends on NET
ea0985ad
JE
1392 ---help---
1393 Say Y here to get to see options for network filesystems and
1394 filesystem-related networking code, such as NFS daemon and
1395 RPCSEC security modules.
6fb1bc10 1396
ea0985ad
JE
1397 This option alone does not add any kernel code.
1398
1399 If you say N, all options in this submenu will be skipped and
1400 disabled; if unsure, say Y here.
1401
1402if NETWORK_FILESYSTEMS
1da177e4
LT
1403
1404config NFS_FS
6fb1bc10 1405 tristate "NFS client support"
1da177e4
LT
1406 depends on INET
1407 select LOCKD
1408 select SUNRPC
b7fa0554 1409 select NFS_ACL_SUPPORT if NFS_V3_ACL
1da177e4 1410 help
6fb1bc10
CL
1411 Choose Y here if you want to access files residing on other
1412 computers using Sun's Network File System protocol. To compile
1413 this file system support as a module, choose M here: the module
1414 will be called nfs.
1da177e4 1415
6fb1bc10
CL
1416 To mount file systems exported by NFS servers, you also need to
1417 install the user space mount.nfs command which can be found in
1418 the Linux nfs-utils package, available from http://linux-nfs.org/.
1419 Information about using the mount command is available in the
1420 mount(8) man page. More detail about the Linux NFS client
1421 implementation is available via the nfs(5) man page.
1da177e4 1422
6fb1bc10
CL
1423 Below you can choose which versions of the NFS protocol are
1424 available in the kernel to mount NFS servers. Support for NFS
1425 version 2 (RFC 1094) is always available when NFS_FS is selected.
1da177e4 1426
6fb1bc10
CL
1427 To configure a system which mounts its root file system via NFS
1428 at boot time, say Y here, select "Kernel level IP
1429 autoconfiguration" in the NETWORK menu, and select "Root file
1430 system on NFS" below. You cannot compile this file system as a
1431 module in this case.
1da177e4 1432
6fb1bc10 1433 If unsure, say N.
1da177e4
LT
1434
1435config NFS_V3
6fb1bc10 1436 bool "NFS client support for NFS version 3"
1da177e4
LT
1437 depends on NFS_FS
1438 help
6fb1bc10
CL
1439 This option enables support for version 3 of the NFS protocol
1440 (RFC 1813) in the kernel's NFS client.
1da177e4
LT
1441
1442 If unsure, say Y.
1443
b7fa0554 1444config NFS_V3_ACL
6fb1bc10 1445 bool "NFS client support for the NFSv3 ACL protocol extension"
b7fa0554
AG
1446 depends on NFS_V3
1447 help
6fb1bc10
CL
1448 Some NFS servers support an auxiliary NFSv3 ACL protocol that
1449 Sun added to Solaris but never became an official part of the
1450 NFS version 3 protocol. This protocol extension allows
1451 applications on NFS clients to manipulate POSIX Access Control
1452 Lists on files residing on NFS servers. NFS servers enforce
1453 ACLs on local files whether this protocol is available or not.
1454
1455 Choose Y here if your NFS server supports the Solaris NFSv3 ACL
1456 protocol extension and you want your NFS client to allow
1457 applications to access and modify ACLs on files on the server.
1458
1459 Most NFS servers don't support the Solaris NFSv3 ACL protocol
1460 extension. You can choose N here or specify the "noacl" mount
1461 option to prevent your NFS client from trying to use the NFSv3
1462 ACL protocol.
b7fa0554
AG
1463
1464 If unsure, say N.
1465
1da177e4 1466config NFS_V4
6fb1bc10 1467 bool "NFS client support for NFS version 4 (EXPERIMENTAL)"
1da177e4
LT
1468 depends on NFS_FS && EXPERIMENTAL
1469 select RPCSEC_GSS_KRB5
1470 help
6fb1bc10
CL
1471 This option enables support for version 4 of the NFS protocol
1472 (RFC 3530) in the kernel's NFS client.
1da177e4 1473
6fb1bc10
CL
1474 To mount NFS servers using NFSv4, you also need to install user
1475 space programs which can be found in the Linux nfs-utils package,
1476 available from http://linux-nfs.org/.
1da177e4
LT
1477
1478 If unsure, say N.
1479
6fb1bc10
CL
1480config ROOT_NFS
1481 bool "Root file system on NFS"
1482 depends on NFS_FS=y && IP_PNP
1483 help
1484 If you want your system to mount its root file system via NFS,
1485 choose Y here. This is common practice for managing systems
1486 without local permanent storage. For details, read
1487 <file:Documentation/filesystems/nfsroot.txt>.
1488
1489 Most people say N here.
1490
1da177e4
LT
1491config NFSD
1492 tristate "NFS server support"
1493 depends on INET
1494 select LOCKD
1495 select SUNRPC
1496 select EXPORTFS
f05e15b5 1497 select NFS_ACL_SUPPORT if NFSD_V2_ACL
1da177e4 1498 help
d24455b5
CL
1499 Choose Y here if you want to allow other computers to access
1500 files residing on this system using Sun's Network File System
1501 protocol. To compile the NFS server support as a module,
1502 choose M here: the module will be called nfsd.
1da177e4 1503
d24455b5
CL
1504 You may choose to use a user-space NFS server instead, in which
1505 case you can choose N here.
1da177e4 1506
d24455b5
CL
1507 To export local file systems using NFS, you also need to install
1508 user space programs which can be found in the Linux nfs-utils
1509 package, available from http://linux-nfs.org/. More detail about
1510 the Linux NFS server implementation is available via the
1511 exports(5) man page.
1da177e4 1512
d24455b5
CL
1513 Below you can choose which versions of the NFS protocol are
1514 available to clients mounting the NFS server on this system.
1515 Support for NFS version 2 (RFC 1094) is always available when
1516 CONFIG_NFSD is selected.
1da177e4 1517
d24455b5 1518 If unsure, say N.
1da177e4 1519
a257cdd0
AG
1520config NFSD_V2_ACL
1521 bool
1522 depends on NFSD
1523
1da177e4 1524config NFSD_V3
d24455b5 1525 bool "NFS server support for NFS version 3"
1da177e4
LT
1526 depends on NFSD
1527 help
d24455b5
CL
1528 This option enables support in your system's NFS server for
1529 version 3 of the NFS protocol (RFC 1813).
1530
1531 If unsure, say Y.
1da177e4 1532
a257cdd0 1533config NFSD_V3_ACL
d24455b5 1534 bool "NFS server support for the NFSv3 ACL protocol extension"
a257cdd0 1535 depends on NFSD_V3
78dd0992 1536 select NFSD_V2_ACL
a257cdd0 1537 help
d24455b5
CL
1538 Solaris NFS servers support an auxiliary NFSv3 ACL protocol that
1539 never became an official part of the NFS version 3 protocol.
1540 This protocol extension allows applications on NFS clients to
1541 manipulate POSIX Access Control Lists on files residing on NFS
1542 servers. NFS servers enforce POSIX ACLs on local files whether
1543 this protocol is available or not.
1544
1545 This option enables support in your system's NFS server for the
1546 NFSv3 ACL protocol extension allowing NFS clients to manipulate
1547 POSIX ACLs on files exported by your system's NFS server. NFS
1548 clients which support the Solaris NFSv3 ACL protocol can then
1549 access and modify ACLs on your NFS server.
1550
1551 To store ACLs on your NFS server, you also need to enable ACL-
1552 related CONFIG options for your local file systems of choice.
1553
1554 If unsure, say N.
a257cdd0 1555
1da177e4 1556config NFSD_V4
d24455b5 1557 bool "NFS server support for NFS version 4 (EXPERIMENTAL)"
1a448fdb
CL
1558 depends on NFSD && PROC_FS && EXPERIMENTAL
1559 select NFSD_V3
89206955 1560 select FS_POSIX_ACL
42ed95c4 1561 select RPCSEC_GSS_KRB5
1da177e4 1562 help
d24455b5
CL
1563 This option enables support in your system's NFS server for
1564 version 4 of the NFS protocol (RFC 3530).
1565
1566 To export files using NFSv4, you need to install additional user
1567 space programs which can be found in the Linux nfs-utils package,
1568 available from http://linux-nfs.org/.
1569
1da177e4
LT
1570 If unsure, say N.
1571
1da177e4
LT
1572config LOCKD
1573 tristate
1574
1575config LOCKD_V4
1576 bool
1577 depends on NFSD_V3 || NFS_V3
1578 default y
1579
1580config EXPORTFS
1581 tristate
1582
a257cdd0
AG
1583config NFS_ACL_SUPPORT
1584 tristate
1585 select FS_POSIX_ACL
1586
1587config NFS_COMMON
1588 bool
1589 depends on NFSD || NFS_FS
1590 default y
1591
1da177e4
LT
1592config SUNRPC
1593 tristate
1594
1595config SUNRPC_GSS
1596 tristate
1597
c3a57ed7 1598config SUNRPC_XPRT_RDMA
3211e4eb 1599 tristate
113632d0 1600 depends on SUNRPC && INFINIBAND && EXPERIMENTAL
3211e4eb 1601 default SUNRPC && INFINIBAND
327a299d
CL
1602 help
1603 This option enables an RPC client transport capability that
1604 allows the NFS client to mount servers via an RDMA-enabled
1605 transport.
1606
1607 To compile RPC client RDMA transport support as a module,
1608 choose M here: the module will be called xprtrdma.
1609
1610 If unsure, say N.
c3a57ed7 1611
a26cfad6
CL
1612config SUNRPC_REGISTER_V4
1613 bool "Register local RPC services via rpcbind v4 (EXPERIMENTAL)"
1614 depends on SUNRPC && EXPERIMENTAL
1615 default n
1616 help
1617 Sun added support for registering RPC services at an IPv6
1618 address by creating two new versions of the rpcbind protocol
1619 (RFC 1833).
1620
1621 This option enables support in the kernel RPC server for
1622 registering kernel RPC services via version 4 of the rpcbind
1623 protocol. If you enable this option, you must run a portmapper
1624 daemon that supports rpcbind protocol version 4.
1625
1626 Serving NFS over IPv6 from knfsd (the kernel's NFS server)
1627 requires that you enable this option and use a portmapper that
1628 supports rpcbind version 4.
1629
1630 If unsure, say N to get traditional behavior (register kernel
1631 RPC services using only rpcbind version 2). Distributions
1632 using the legacy Linux portmapper daemon must say N here.
1633
1da177e4
LT
1634config RPCSEC_GSS_KRB5
1635 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
1636 depends on SUNRPC && EXPERIMENTAL
1637 select SUNRPC_GSS
1638 select CRYPTO
1639 select CRYPTO_MD5
1640 select CRYPTO_DES
bcbaecbb 1641 select CRYPTO_CBC
1da177e4 1642 help
327a299d
CL
1643 Choose Y here to enable Secure RPC using the Kerberos version 5
1644 GSS-API mechanism (RFC 1964).
1da177e4 1645
327a299d
CL
1646 Secure RPC calls with Kerberos require an auxiliary user-space
1647 daemon which may be found in the Linux nfs-utils package
1648 available from http://linux-nfs.org/. In addition, user-space
1649 Kerberos support should be installed.
1da177e4
LT
1650
1651 If unsure, say N.
1652
1653config RPCSEC_GSS_SPKM3
1654 tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
1655 depends on SUNRPC && EXPERIMENTAL
1656 select SUNRPC_GSS
1657 select CRYPTO
1658 select CRYPTO_MD5
1659 select CRYPTO_DES
df6db302 1660 select CRYPTO_CAST5
bcbaecbb 1661 select CRYPTO_CBC
1da177e4 1662 help
327a299d
CL
1663 Choose Y here to enable Secure RPC using the SPKM3 public key
1664 GSS-API mechansim (RFC 2025).
1da177e4 1665
327a299d
CL
1666 Secure RPC calls with SPKM3 require an auxiliary userspace
1667 daemon which may be found in the Linux nfs-utils package
1668 available from http://linux-nfs.org/.
1da177e4
LT
1669
1670 If unsure, say N.
1671
1672config SMB_FS
c7736339 1673 tristate "SMB file system support (OBSOLETE, please use CIFS)"
1da177e4
LT
1674 depends on INET
1675 select NLS
1676 help
1677 SMB (Server Message Block) is the protocol Windows for Workgroups
1678 (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
1679 files and printers over local networks. Saying Y here allows you to
1680 mount their file systems (often called "shares" in this context) and
1681 access them just like any other Unix directory. Currently, this
1682 works only if the Windows machines use TCP/IP as the underlying
1683 transport protocol, and not NetBEUI. For details, read
1684 <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
1685 available from <http://www.tldp.org/docs.html#howto>.
1686
1687 Note: if you just want your box to act as an SMB *server* and make
1688 files and printing services available to Windows clients (which need
1689 to have a TCP/IP stack), you don't need to say Y here; you can use
1690 the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
1691 for that.
1692
1693 General information about how to connect Linux, Windows machines and
1694 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1695
c7736339
AM
1696 To compile the SMB support as a module, choose M here:
1697 the module will be called smbfs. Most people say N, however.
1da177e4
LT
1698
1699config SMB_NLS_DEFAULT
1700 bool "Use a default NLS"
1701 depends on SMB_FS
1702 help
1703 Enabling this will make smbfs use nls translations by default. You
1704 need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
1705 settings and you need to give the default nls for the SMB server as
1706 CONFIG_SMB_NLS_REMOTE.
1707
1708 The nls settings can be changed at mount time, if your smbmount
1709 supports that, using the codepage and iocharset parameters.
1710
1711 smbmount from samba 2.2.0 or later supports this.
1712
1713config SMB_NLS_REMOTE
1714 string "Default Remote NLS Option"
1715 depends on SMB_NLS_DEFAULT
1716 default "cp437"
1717 help
1718 This setting allows you to specify a default value for which
1719 codepage the server uses. If this field is left blank no
1720 translations will be done by default. The local codepage/charset
1721 default to CONFIG_NLS_DEFAULT.
1722
1723 The nls settings can be changed at mount time, if your smbmount
1724 supports that, using the codepage and iocharset parameters.
1725
1726 smbmount from samba 2.2.0 or later supports this.
1727
bb26b963 1728source "fs/cifs/Kconfig"
6103335d 1729
1da177e4
LT
1730config NCP_FS
1731 tristate "NCP file system support (to mount NetWare volumes)"
1732 depends on IPX!=n || INET
1733 help
1734 NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
1735 used by Novell NetWare clients to talk to file servers. It is to
1736 IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you
1737 to mount NetWare file server volumes and to access them just like
1738 any other Unix directory. For details, please read the file
1739 <file:Documentation/filesystems/ncpfs.txt> in the kernel source and
1740 the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
1741
1742 You do not have to say Y here if you want your Linux box to act as a
1743 file *server* for Novell NetWare clients.
1744
1745 General information about how to connect Linux, Windows machines and
1746 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1747
1748 To compile this as a module, choose M here: the module will be called
1749 ncpfs. Say N unless you are connected to a Novell network.
1750
1751source "fs/ncpfs/Kconfig"
1752
1753config CODA_FS
1754 tristate "Coda file system support (advanced network fs)"
1755 depends on INET
1756 help
1757 Coda is an advanced network file system, similar to NFS in that it
1758 enables you to mount file systems of a remote server and access them
1759 with regular Unix commands as if they were sitting on your hard
1760 disk. Coda has several advantages over NFS: support for
1761 disconnected operation (e.g. for laptops), read/write server
1762 replication, security model for authentication and encryption,
1763 persistent client caches and write back caching.
1764
1765 If you say Y here, your Linux box will be able to act as a Coda
1766 *client*. You will need user level code as well, both for the
1767 client and server. Servers are currently user level, i.e. they need
1768 no kernel support. Please read
1769 <file:Documentation/filesystems/coda.txt> and check out the Coda
1770 home page <http://www.coda.cs.cmu.edu/>.
1771
1772 To compile the coda client support as a module, choose M here: the
1773 module will be called coda.
1774
1da177e4 1775config AFS_FS
64aaa4f8 1776 tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
1da177e4 1777 depends on INET && EXPERIMENTAL
08e0e7c8 1778 select AF_RXRPC
1da177e4
LT
1779 help
1780 If you say Y here, you will get an experimental Andrew File System
1781 driver. It currently only supports unsecured read-only AFS access.
1782
cc2e2767 1783 See <file:Documentation/filesystems/afs.txt> for more information.
1da177e4
LT
1784
1785 If unsure, say N.
1786
08e0e7c8
DH
1787config AFS_DEBUG
1788 bool "AFS dynamic debugging"
1789 depends on AFS_FS
1790 help
1791 Say Y here to make runtime controllable debugging messages appear.
1792
1793 See <file:Documentation/filesystems/afs.txt> for more information.
1794
1795 If unsure, say N.
1796
93fa58cb
EVH
1797config 9P_FS
1798 tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
bd238fb4 1799 depends on INET && NET_9P && EXPERIMENTAL
93fa58cb
EVH
1800 help
1801 If you say Y here, you will get experimental support for
1802 Plan 9 resource sharing via the 9P2000 protocol.
1803
1804 See <http://v9fs.sf.net> for more information.
1805
1806 If unsure, say N.
1807
ea0985ad 1808endif # NETWORK_FILESYSTEMS
1da177e4 1809
9361401e 1810if BLOCK
1da177e4
LT
1811menu "Partition Types"
1812
1813source "fs/partitions/Kconfig"
1814
1815endmenu
9361401e 1816endif
1da177e4
LT
1817
1818source "fs/nls/Kconfig"
e7fd4179 1819source "fs/dlm/Kconfig"
1da177e4
LT
1820
1821endmenu