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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 EXT4DEV_FS
140 tristate "Ext4dev/ext4 extended fs support development (EXPERIMENTAL)"
141 depends on EXPERIMENTAL
dab291af 142 select JBD2
717d50e4 143 select CRC16
dab291af 144 help
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145 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
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149 Unlike the change from ext2 filesystem to ext3 filesystem,
150 the on-disk format of ext4dev is not the same as ext3 any more:
02ea2104 151 it is based on extent maps and it supports 48-bit physical block
dab291af 152 numbers. These combined on-disk format changes will allow
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153 ext4dev/ext4 to handle more than 16 TB filesystem volumes --
154 a hard limit that ext3 cannot overcome without changing the
dab291af 155 on-disk format.
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156
157 Other than extent maps and 48-bit block numbers, ext4dev also is
dab291af 158 likely to have other new features such as persistent preallocation,
02ea2104 159 high resolution time stamps, and larger file support etc. These
dab291af 160 features will be added to ext4dev gradually.
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161
162 To compile this file system support as a module, choose M here. The
d23edbd3 163 module will be called ext4dev.
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164
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
1da177e4 205config JBD
1da177e4 206 tristate
1da177e4 207 help
cc2e2767 208 This is a generic journalling layer for block devices. It is
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209 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.
1da177e4 212
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213 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.
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216
217 To compile this device as a module, choose M here: the module will be
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218 called jbd. If you are compiling ext3 or OCFS2 into the kernel,
219 you cannot compile this code as a module.
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220
221config JBD_DEBUG
222 bool "JBD (ext3) debugging support"
c2a9159c 223 depends on JBD && DEBUG_FS
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224 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
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232 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".
1da177e4 236
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237config JBD2
238 tristate
239 help
240 This is a generic journaling layer for block devices that support
241 both 32-bit and 64-bit block numbers. It is currently used by
242 the ext4dev/ext4 filesystem, but it could also be used to add
243 journal support to other file systems or block devices such
244 as RAID or LVM.
245
246 If you are using ext4dev/ext4, you need to say Y here. If you are not
247 using ext4dev/ext4 then you will probably want to say N.
248
249 To compile this device as a module, choose M here. The module will be
250 called jbd2. If you are compiling ext4dev/ext4 into the kernel,
251 you cannot compile this code as a module.
252
253config JBD2_DEBUG
254 bool "JBD2 (ext4dev/ext4) debugging support"
0f49d5d0 255 depends on JBD2 && DEBUG_FS
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256 help
257 If you are using the ext4dev/ext4 journaled file system (or
258 potentially any other filesystem/device using JBD2), this option
259 allows you to enable debugging output while the system is running,
260 in order to help track down any problems you are having.
261 By default, the debugging output will be turned off.
262
263 If you select Y here, then you will be able to turn on debugging
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264 with "echo N > /sys/kernel/debug/jbd2/jbd2-debug", where N is a
265 number between 1 and 5. The higher the number, the more debugging
266 output is generated. To turn debugging off again, do
267 "echo 0 > /sys/kernel/debug/jbd2/jbd2-debug".
dab291af 268
1da177e4 269config FS_MBCACHE
02ea2104 270# Meta block cache for Extended Attributes (ext2/ext3/ext4)
1da177e4 271 tristate
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272 depends on EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4DEV_FS_XATTR
273 default y if EXT2_FS=y || EXT3_FS=y || EXT4DEV_FS=y
274 default m if EXT2_FS=m || EXT3_FS=m || EXT4DEV_FS=m
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275
276config REISERFS_FS
277 tristate "Reiserfs support"
278 help
279 Stores not just filenames but the files themselves in a balanced
cc2e2767 280 tree. Uses journalling.
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281
282 Balanced trees are more efficient than traditional file system
283 architectural foundations.
284
285 In general, ReiserFS is as fast as ext2, but is very efficient with
286 large directories and small files. Additional patches are needed
287 for NFS and quotas, please see <http://www.namesys.com/> for links.
288
289 It is more easily extended to have features currently found in
290 database and keyword search systems than block allocation based file
291 systems are. The next version will be so extended, and will support
292 plugins consistent with our motto ``It takes more than a license to
293 make source code open.''
294
295 Read <http://www.namesys.com/> to learn more about reiserfs.
296
297 Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com.
298
299 If you like it, you can pay us to add new features to it that you
300 need, buy a support contract, or pay us to port it to another OS.
301
302config REISERFS_CHECK
303 bool "Enable reiserfs debug mode"
304 depends on REISERFS_FS
305 help
306 If you set this to Y, then ReiserFS will perform every check it can
307 possibly imagine of its internal consistency throughout its
308 operation. It will also go substantially slower. More than once we
309 have forgotten that this was on, and then gone despondent over the
310 latest benchmarks.:-) Use of this option allows our team to go all
311 out in checking for consistency when debugging without fear of its
312 effect on end users. If you are on the verge of sending in a bug
313 report, say Y and you might get a useful error message. Almost
314 everyone should say N.
315
316config REISERFS_PROC_INFO
317 bool "Stats in /proc/fs/reiserfs"
880ebdc5 318 depends on REISERFS_FS && PROC_FS
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319 help
320 Create under /proc/fs/reiserfs a hierarchy of files, displaying
321 various ReiserFS statistics and internal data at the expense of
322 making your kernel or module slightly larger (+8 KB). This also
323 increases the amount of kernel memory required for each mount.
324 Almost everyone but ReiserFS developers and people fine-tuning
325 reiserfs or tracing problems should say N.
326
327config REISERFS_FS_XATTR
328 bool "ReiserFS extended attributes"
329 depends on REISERFS_FS
330 help
331 Extended attributes are name:value pairs associated with inodes by
332 the kernel or by users (see the attr(5) manual page, or visit
333 <http://acl.bestbits.at/> for details).
334
335 If unsure, say N.
336
337config REISERFS_FS_POSIX_ACL
338 bool "ReiserFS POSIX Access Control Lists"
339 depends on REISERFS_FS_XATTR
b84c2157 340 select FS_POSIX_ACL
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341 help
342 Posix Access Control Lists (ACLs) support permissions for users and
343 groups beyond the owner/group/world scheme.
344
345 To learn more about Access Control Lists, visit the Posix ACLs for
346 Linux website <http://acl.bestbits.at/>.
347
348 If you don't know what Access Control Lists are, say N
349
350config REISERFS_FS_SECURITY
351 bool "ReiserFS Security Labels"
352 depends on REISERFS_FS_XATTR
353 help
354 Security labels support alternative access control models
355 implemented by security modules like SELinux. This option
356 enables an extended attribute handler for file security
357 labels in the ReiserFS filesystem.
358
359 If you are not using a security module that requires using
360 extended attributes for file security labels, say N.
361
362config JFS_FS
363 tristate "JFS filesystem support"
364 select NLS
365 help
366 This is a port of IBM's Journaled Filesystem . More information is
367 available in the file <file:Documentation/filesystems/jfs.txt>.
368
369 If you do not intend to use the JFS filesystem, say N.
370
371config JFS_POSIX_ACL
372 bool "JFS POSIX Access Control Lists"
373 depends on JFS_FS
b84c2157 374 select FS_POSIX_ACL
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375 help
376 Posix Access Control Lists (ACLs) support permissions for users and
377 groups beyond the owner/group/world scheme.
378
379 To learn more about Access Control Lists, visit the Posix ACLs for
380 Linux website <http://acl.bestbits.at/>.
381
382 If you don't know what Access Control Lists are, say N
383
384config JFS_SECURITY
385 bool "JFS Security Labels"
386 depends on JFS_FS
387 help
388 Security labels support alternative access control models
389 implemented by security modules like SELinux. This option
390 enables an extended attribute handler for file security
391 labels in the jfs filesystem.
392
393 If you are not using a security module that requires using
394 extended attributes for file security labels, say N.
395
396config JFS_DEBUG
397 bool "JFS debugging"
398 depends on JFS_FS
399 help
400 If you are experiencing any problems with the JFS filesystem, say
401 Y here. This will result in additional debugging messages to be
402 written to the system log. Under normal circumstances, this
403 results in very little overhead.
404
405config JFS_STATISTICS
406 bool "JFS statistics"
407 depends on JFS_FS
408 help
409 Enabling this option will cause statistics from the JFS file system
410 to be made available to the user in the /proc/fs/jfs/ directory.
411
412config FS_POSIX_ACL
413# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs)
414#
415# NOTE: you can implement Posix ACLs without these helpers (XFS does).
416# Never use this symbol for ifdefs.
417#
418 bool
b84c2157 419 default n
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420
421source "fs/xfs/Kconfig"
f7825dcf 422source "fs/gfs2/Kconfig"
1da177e4 423
b4e40a51 424config OCFS2_FS
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425 tristate "OCFS2 file system support"
426 depends on NET && SYSFS
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427 select CONFIGFS_FS
428 select JBD
429 select CRC32
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430 help
431 OCFS2 is a general purpose extent based shared disk cluster file
432 system with many similarities to ext3. It supports 64 bit inode
433 numbers, and has automatically extending metadata groups which may
434 also make it attractive for non-clustered use.
435
436 You'll want to install the ocfs2-tools package in order to at least
437 get "mount.ocfs2".
438
439 Project web page: http://oss.oracle.com/projects/ocfs2
440 Tools web page: http://oss.oracle.com/projects/ocfs2-tools
441 OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/
442
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443 For more information on OCFS2, see the file
444 <file:Documentation/filesystems/ocfs2.txt>.
b4e40a51 445
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446config OCFS2_DEBUG_MASKLOG
447 bool "OCFS2 logging support"
448 depends on OCFS2_FS
449 default y
450 help
451 The ocfs2 filesystem has an extensive logging system. The system
452 allows selection of events to log via files in /sys/o2cb/logmask/.
453 This option will enlarge your kernel, but it allows debugging of
454 ocfs2 filesystem issues.
455
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456config OCFS2_DEBUG_FS
457 bool "OCFS2 expensive checks"
458 depends on OCFS2_FS
459 default n
460 help
461 This option will enable expensive consistency checks. Enable
462 this option for debugging only as it is likely to decrease
463 performance of the filesystem.
464
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465config MINIX_FS
466 tristate "Minix fs support"
467 help
468 Minix is a simple operating system used in many classes about OS's.
469 The minix file system (method to organize files on a hard disk
470 partition or a floppy disk) was the original file system for Linux,
471 but has been superseded by the second extended file system ext2fs.
472 You don't want to use the minix file system on your hard disk
473 because of certain built-in restrictions, but it is sometimes found
474 on older Linux floppy disks. This option will enlarge your kernel
475 by about 28 KB. If unsure, say N.
476
477 To compile this file system support as a module, choose M here: the
478 module will be called minix. Note that the file system of your root
479 partition (the one containing the directory /) cannot be compiled as
480 a module.
481
482config ROMFS_FS
483 tristate "ROM file system support"
484 ---help---
485 This is a very small read-only file system mainly intended for
486 initial ram disks of installation disks, but it could be used for
487 other read-only media as well. Read
488 <file:Documentation/filesystems/romfs.txt> for details.
489
490 To compile this file system support as a module, choose M here: the
491 module will be called romfs. Note that the file system of your
492 root partition (the one containing the directory /) cannot be a
493 module.
494
495 If you don't know whether you need it, then you don't need it:
496 answer N.
497
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498endif
499
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500config INOTIFY
501 bool "Inotify file change notification support"
502 default y
503 ---help---
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504 Say Y here to enable inotify support. Inotify is a file change
505 notification system and a replacement for dnotify. Inotify fixes
506 numerous shortcomings in dnotify and introduces several new features
507 including multiple file events, one-shot support, and unmount
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508 notification.
509
e403149c 510 For more information, see <file:Documentation/filesystems/inotify.txt>
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511
512 If unsure, say Y.
513
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514config INOTIFY_USER
515 bool "Inotify support for userspace"
516 depends on INOTIFY
517 default y
518 ---help---
519 Say Y here to enable inotify support for userspace, including the
520 associated system calls. Inotify allows monitoring of both files and
521 directories via a single open fd. Events are read from the file
522 descriptor, which is also select()- and poll()-able.
523
e403149c 524 For more information, see <file:Documentation/filesystems/inotify.txt>
2d9048e2 525
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526 If unsure, say Y.
527
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528config QUOTA
529 bool "Quota support"
530 help
531 If you say Y here, you will be able to set per user limits for disk
532 usage (also called disk quotas). Currently, it works for the
533 ext2, ext3, and reiserfs file system. ext3 also supports journalled
534 quotas for which you don't need to run quotacheck(8) after an unclean
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535 shutdown.
536 For further details, read the Quota mini-HOWTO, available from
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537 <http://www.tldp.org/docs.html#howto>, or the documentation provided
538 with the quota tools. Probably the quota support is only useful for
539 multi user systems. If unsure, say N.
540
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541config QUOTA_NETLINK_INTERFACE
542 bool "Report quota messages through netlink interface"
543 depends on QUOTA && NET
544 help
545 If you say Y here, quota warnings (about exceeding softlimit, reaching
546 hardlimit, etc.) will be reported through netlink interface. If unsure,
547 say Y.
548
549config PRINT_QUOTA_WARNING
550 bool "Print quota warnings to console (OBSOLETE)"
551 depends on QUOTA
552 default y
553 help
554 If you say Y here, quota warnings (about exceeding softlimit, reaching
555 hardlimit, etc.) will be printed to the process' controlling terminal.
556 Note that this behavior is currently deprecated and may go away in
557 future. Please use notification via netlink socket instead.
558
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559config QFMT_V1
560 tristate "Old quota format support"
561 depends on QUOTA
562 help
563 This quota format was (is) used by kernels earlier than 2.4.22. If
564 you have quota working and you don't want to convert to new quota
565 format say Y here.
566
567config QFMT_V2
568 tristate "Quota format v2 support"
569 depends on QUOTA
570 help
571 This quota format allows using quotas with 32-bit UIDs/GIDs. If you
919532a5 572 need this functionality say Y here.
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573
574config QUOTACTL
575 bool
576 depends on XFS_QUOTA || QUOTA
577 default y
578
579config DNOTIFY
7e341fa1 580 bool "Dnotify support"
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581 default y
582 help
583 Dnotify is a directory-based per-fd file change notification system
584 that uses signals to communicate events to user-space. There exist
585 superior alternatives, but some applications may still rely on
586 dnotify.
587
7e341fa1 588 If unsure, say Y.
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589
590config AUTOFS_FS
591 tristate "Kernel automounter support"
592 help
593 The automounter is a tool to automatically mount remote file systems
594 on demand. This implementation is partially kernel-based to reduce
595 overhead in the already-mounted case; this is unlike the BSD
596 automounter (amd), which is a pure user space daemon.
597
598 To use the automounter you need the user-space tools from the autofs
599 package; you can find the location in <file:Documentation/Changes>.
600 You also want to answer Y to "NFS file system support", below.
601
602 If you want to use the newer version of the automounter with more
603 features, say N here and say Y to "Kernel automounter v4 support",
604 below.
605
606 To compile this support as a module, choose M here: the module will be
607 called autofs.
608
609 If you are not a part of a fairly large, distributed network, you
610 probably do not need an automounter, and can say N here.
611
612config AUTOFS4_FS
613 tristate "Kernel automounter version 4 support (also supports v3)"
614 help
615 The automounter is a tool to automatically mount remote file systems
616 on demand. This implementation is partially kernel-based to reduce
617 overhead in the already-mounted case; this is unlike the BSD
618 automounter (amd), which is a pure user space daemon.
619
620 To use the automounter you need the user-space tools from
621 <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
622 want to answer Y to "NFS file system support", below.
623
624 To compile this support as a module, choose M here: the module will be
625 called autofs4. You will need to add "alias autofs autofs4" to your
626 modules configuration file.
627
628 If you are not a part of a fairly large, distributed network or
629 don't have a laptop which needs to dynamically reconfigure to the
630 local network, you probably do not need an automounter, and can say
631 N here.
632
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633config FUSE_FS
634 tristate "Filesystem in Userspace support"
635 help
636 With FUSE it is possible to implement a fully functional filesystem
637 in a userspace program.
638
639 There's also companion library: libfuse. This library along with
640 utilities is available from the FUSE homepage:
641 <http://fuse.sourceforge.net/>
642
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MS
643 See <file:Documentation/filesystems/fuse.txt> for more information.
644 See <file:Documentation/Changes> for needed library/utility version.
645
04578f17
MS
646 If you want to develop a userspace FS, or if you want to use
647 a filesystem based on FUSE, answer Y or M.
648
f2fbc6c2
RD
649config GENERIC_ACL
650 bool
651 select FS_POSIX_ACL
652
9361401e 653if BLOCK
1da177e4
LT
654menu "CD-ROM/DVD Filesystems"
655
656config ISO9660_FS
657 tristate "ISO 9660 CDROM file system support"
658 help
659 This is the standard file system used on CD-ROMs. It was previously
660 known as "High Sierra File System" and is called "hsfs" on other
661 Unix systems. The so-called Rock-Ridge extensions which allow for
662 long Unix filenames and symbolic links are also supported by this
663 driver. If you have a CD-ROM drive and want to do more with it than
664 just listen to audio CDs and watch its LEDs, say Y (and read
665 <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO,
666 available from <http://www.tldp.org/docs.html#howto>), thereby
667 enlarging your kernel by about 27 KB; otherwise say N.
668
669 To compile this file system support as a module, choose M here: the
670 module will be called isofs.
671
672config JOLIET
673 bool "Microsoft Joliet CDROM extensions"
674 depends on ISO9660_FS
675 select NLS
676 help
677 Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
678 which allows for long filenames in unicode format (unicode is the
679 new 16 bit character code, successor to ASCII, which encodes the
680 characters of almost all languages of the world; see
681 <http://www.unicode.org/> for more information). Say Y here if you
682 want to be able to read Joliet CD-ROMs under Linux.
683
684config ZISOFS
685 bool "Transparent decompression extension"
686 depends on ISO9660_FS
687 select ZLIB_INFLATE
688 help
689 This is a Linux-specific extension to RockRidge which lets you store
690 data in compressed form on a CD-ROM and have it transparently
691 decompressed when the CD-ROM is accessed. See
692 <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
693 necessary to create such a filesystem. Say Y here if you want to be
694 able to read such compressed CD-ROMs.
695
1da177e4
LT
696config UDF_FS
697 tristate "UDF file system support"
698 help
699 This is the new file system used on some CD-ROMs and DVDs. Say Y if
700 you intend to mount DVD discs or CDRW's written in packet mode, or
701 if written to by other UDF utilities, such as DirectCD.
702 Please read <file:Documentation/filesystems/udf.txt>.
703
704 To compile this file system support as a module, choose M here: the
705 module will be called udf.
706
707 If unsure, say N.
708
709config UDF_NLS
710 bool
711 default y
712 depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
713
714endmenu
9361401e 715endif
1da177e4 716
9361401e 717if BLOCK
1da177e4
LT
718menu "DOS/FAT/NT Filesystems"
719
720config FAT_FS
721 tristate
722 select NLS
723 help
724 If you want to use one of the FAT-based file systems (the MS-DOS and
725 VFAT (Windows 95) file systems), then you must say Y or M here
726 to include FAT support. You will then be able to mount partitions or
727 diskettes with FAT-based file systems and transparently access the
728 files on them, i.e. MSDOS files will look and behave just like all
729 other Unix files.
730
731 This FAT support is not a file system in itself, it only provides
732 the foundation for the other file systems. You will have to say Y or
733 M to at least one of "MSDOS fs support" or "VFAT fs support" in
734 order to make use of it.
735
736 Another way to read and write MSDOS floppies and hard drive
737 partitions from within Linux (but not transparently) is with the
738 mtools ("man mtools") program suite. You don't need to say Y here in
739 order to do that.
740
741 If you need to move large files on floppies between a DOS and a
742 Linux box, say Y here, mount the floppy under Linux with an MSDOS
743 file system and use GNU tar's M option. GNU tar is a program
744 available for Unix and DOS ("man tar" or "info tar").
745
1da177e4
LT
746 The FAT support will enlarge your kernel by about 37 KB. If unsure,
747 say Y.
748
749 To compile this as a module, choose M here: the module will be called
750 fat. Note that if you compile the FAT support as a module, you
751 cannot compile any of the FAT-based file systems into the kernel
752 -- they will have to be modules as well.
753
754config MSDOS_FS
755 tristate "MSDOS fs support"
756 select FAT_FS
757 help
758 This allows you to mount MSDOS partitions of your hard drive (unless
759 they are compressed; to access compressed MSDOS partitions under
760 Linux, you can either use the DOS emulator DOSEMU, described in the
761 DOSEMU-HOWTO, available from
762 <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
763 <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
764 intend to use dosemu with a non-compressed MSDOS partition, say Y
765 here) and MSDOS floppies. This means that file access becomes
766 transparent, i.e. the MSDOS files look and behave just like all
767 other Unix files.
768
769 If you have Windows 95 or Windows NT installed on your MSDOS
770 partitions, you should use the VFAT file system (say Y to "VFAT fs
771 support" below), or you will not be able to see the long filenames
772 generated by Windows 95 / Windows NT.
773
774 This option will enlarge your kernel by about 7 KB. If unsure,
775 answer Y. This will only work if you said Y to "DOS FAT fs support"
776 as well. To compile this as a module, choose M here: the module will
777 be called msdos.
778
779config VFAT_FS
780 tristate "VFAT (Windows-95) fs support"
781 select FAT_FS
782 help
783 This option provides support for normal Windows file systems with
784 long filenames. That includes non-compressed FAT-based file systems
785 used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
786 programs from the mtools package.
787
788 The VFAT support enlarges your kernel by about 10 KB and it only
789 works if you said Y to the "DOS FAT fs support" above. Please read
790 the file <file:Documentation/filesystems/vfat.txt> for details. If
791 unsure, say Y.
792
793 To compile this as a module, choose M here: the module will be called
794 vfat.
795
796config FAT_DEFAULT_CODEPAGE
797 int "Default codepage for FAT"
798 depends on MSDOS_FS || VFAT_FS
799 default 437
800 help
801 This option should be set to the codepage of your FAT filesystems.
802 It can be overridden with the "codepage" mount option.
803 See <file:Documentation/filesystems/vfat.txt> for more information.
804
805config FAT_DEFAULT_IOCHARSET
806 string "Default iocharset for FAT"
807 depends on VFAT_FS
808 default "iso8859-1"
809 help
810 Set this to the default input/output character set you'd
811 like FAT to use. It should probably match the character set
812 that most of your FAT filesystems use, and can be overridden
813 with the "iocharset" mount option for FAT filesystems.
814 Note that "utf8" is not recommended for FAT filesystems.
815 If unsure, you shouldn't set "utf8" here.
816 See <file:Documentation/filesystems/vfat.txt> for more information.
817
818config NTFS_FS
819 tristate "NTFS file system support"
820 select NLS
821 help
822 NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
823
824 Saying Y or M here enables read support. There is partial, but
825 safe, write support available. For write support you must also
826 say Y to "NTFS write support" below.
827
828 There are also a number of user-space tools available, called
829 ntfsprogs. These include ntfsundelete and ntfsresize, that work
830 without NTFS support enabled in the kernel.
831
832 This is a rewrite from scratch of Linux NTFS support and replaced
833 the old NTFS code starting with Linux 2.5.11. A backport to
834 the Linux 2.4 kernel series is separately available as a patch
835 from the project web site.
836
837 For more information see <file:Documentation/filesystems/ntfs.txt>
838 and <http://linux-ntfs.sourceforge.net/>.
839
840 To compile this file system support as a module, choose M here: the
841 module will be called ntfs.
842
843 If you are not using Windows NT, 2000, XP or 2003 in addition to
844 Linux on your computer it is safe to say N.
845
846config NTFS_DEBUG
847 bool "NTFS debugging support"
848 depends on NTFS_FS
849 help
850 If you are experiencing any problems with the NTFS file system, say
851 Y here. This will result in additional consistency checks to be
852 performed by the driver as well as additional debugging messages to
853 be written to the system log. Note that debugging messages are
854 disabled by default. To enable them, supply the option debug_msgs=1
855 at the kernel command line when booting the kernel or as an option
856 to insmod when loading the ntfs module. Once the driver is active,
857 you can enable debugging messages by doing (as root):
858 echo 1 > /proc/sys/fs/ntfs-debug
859 Replacing the "1" with "0" would disable debug messages.
860
861 If you leave debugging messages disabled, this results in little
862 overhead, but enabling debug messages results in very significant
863 slowdown of the system.
864
865 When reporting bugs, please try to have available a full dump of
866 debugging messages while the misbehaviour was occurring.
867
868config NTFS_RW
869 bool "NTFS write support"
870 depends on NTFS_FS
871 help
872 This enables the partial, but safe, write support in the NTFS driver.
873
874 The only supported operation is overwriting existing files, without
875 changing the file length. No file or directory creation, deletion or
876 renaming is possible. Note only non-resident files can be written to
877 so you may find that some very small files (<500 bytes or so) cannot
878 be written to.
879
880 While we cannot guarantee that it will not damage any data, we have
881 so far not received a single report where the driver would have
882 damaged someones data so we assume it is perfectly safe to use.
883
884 Note: While write support is safe in this version (a rewrite from
885 scratch of the NTFS support), it should be noted that the old NTFS
886 write support, included in Linux 2.5.10 and before (since 1997),
887 is not safe.
888
889 This is currently useful with TopologiLinux. TopologiLinux is run
890 on top of any DOS/Microsoft Windows system without partitioning your
891 hard disk. Unlike other Linux distributions TopologiLinux does not
892 need its own partition. For more information see
893 <http://topologi-linux.sourceforge.net/>
894
895 It is perfectly safe to say N here.
896
897endmenu
9361401e 898endif
1da177e4
LT
899
900menu "Pseudo filesystems"
901
902config PROC_FS
69755652
PA
903 bool "/proc file system support" if EMBEDDED
904 default y
1da177e4
LT
905 help
906 This is a virtual file system providing information about the status
907 of the system. "Virtual" means that it doesn't take up any space on
908 your hard disk: the files are created on the fly by the kernel when
909 you try to access them. Also, you cannot read the files with older
910 version of the program less: you need to use more or cat.
911
912 It's totally cool; for example, "cat /proc/interrupts" gives
913 information about what the different IRQs are used for at the moment
914 (there is a small number of Interrupt ReQuest lines in your computer
915 that are used by the attached devices to gain the CPU's attention --
916 often a source of trouble if two devices are mistakenly configured
917 to use the same IRQ). The program procinfo to display some
918 information about your system gathered from the /proc file system.
919
920 Before you can use the /proc file system, it has to be mounted,
921 meaning it has to be given a location in the directory hierarchy.
922 That location should be /proc. A command such as "mount -t proc proc
923 /proc" or the equivalent line in /etc/fstab does the job.
924
925 The /proc file system is explained in the file
926 <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
927 ("man 5 proc").
928
929 This option will enlarge your kernel by about 67 KB. Several
930 programs depend on this, so everyone should say Y here.
931
932config PROC_KCORE
933 bool "/proc/kcore support" if !ARM
934 depends on PROC_FS && MMU
935
666bfddb
VG
936config PROC_VMCORE
937 bool "/proc/vmcore support (EXPERIMENTAL)"
05970d47 938 depends on PROC_FS && EXPERIMENTAL && CRASH_DUMP
68250ba5 939 default y
666bfddb
VG
940 help
941 Exports the dump image of crashed kernel in ELF format.
942
b89a8171
EB
943config PROC_SYSCTL
944 bool "Sysctl support (/proc/sys)" if EMBEDDED
945 depends on PROC_FS
946 select SYSCTL
947 default y
948 ---help---
949 The sysctl interface provides a means of dynamically changing
950 certain kernel parameters and variables on the fly without requiring
951 a recompile of the kernel or reboot of the system. The primary
952 interface is through /proc/sys. If you say Y here a tree of
953 modifiable sysctl entries will be generated beneath the
954 /proc/sys directory. They are explained in the files
955 in <file:Documentation/sysctl/>. Note that enabling this
956 option will enlarge the kernel by at least 8 KB.
957
958 As it is generally a good thing, you should say Y here unless
959 building a kernel for install/rescue disks or your system is very
960 limited in memory.
961
1da177e4
LT
962config SYSFS
963 bool "sysfs file system support" if EMBEDDED
964 default y
965 help
966 The sysfs filesystem is a virtual filesystem that the kernel uses to
967 export internal kernel objects, their attributes, and their
968 relationships to one another.
969
970 Users can use sysfs to ascertain useful information about the running
971 kernel, such as the devices the kernel has discovered on each bus and
972 which driver each is bound to. sysfs can also be used to tune devices
973 and other kernel subsystems.
974
975 Some system agents rely on the information in sysfs to operate.
976 /sbin/hotplug uses device and object attributes in sysfs to assist in
03a67a46 977 delegating policy decisions, like persistently naming devices.
1da177e4
LT
978
979 sysfs is currently used by the block subsystem to mount the root
980 partition. If sysfs is disabled you must specify the boot device on
981 the kernel boot command line via its major and minor numbers. For
982 example, "root=03:01" for /dev/hda1.
983
984 Designers of embedded systems may wish to say N here to conserve space.
985
1da177e4
LT
986config TMPFS
987 bool "Virtual memory file system support (former shm fs)"
988 help
989 Tmpfs is a file system which keeps all files in virtual memory.
990
991 Everything in tmpfs is temporary in the sense that no files will be
992 created on your hard drive. The files live in memory and swap
993 space. If you unmount a tmpfs instance, everything stored therein is
994 lost.
995
996 See <file:Documentation/filesystems/tmpfs.txt> for details.
997
39f0247d
AG
998config TMPFS_POSIX_ACL
999 bool "Tmpfs POSIX Access Control Lists"
1000 depends on TMPFS
1001 select GENERIC_ACL
1002 help
1003 POSIX Access Control Lists (ACLs) support permissions for users and
1004 groups beyond the owner/group/world scheme.
1005
1006 To learn more about Access Control Lists, visit the POSIX ACLs for
1007 Linux website <http://acl.bestbits.at/>.
1008
1009 If you don't know what Access Control Lists are, say N.
1010
1da177e4
LT
1011config HUGETLBFS
1012 bool "HugeTLB file system support"
dd950587 1013 depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || BROKEN
dda27d1a
AO
1014 help
1015 hugetlbfs is a filesystem backing for HugeTLB pages, based on
1016 ramfs. For architectures that support it, say Y here and read
1017 <file:Documentation/vm/hugetlbpage.txt> for details.
1018
1019 If unsure, say N.
1da177e4
LT
1020
1021config HUGETLB_PAGE
1022 def_bool HUGETLBFS
1023
7063fbf2
JB
1024config CONFIGFS_FS
1025 tristate "Userspace-driven configuration filesystem (EXPERIMENTAL)"
65714b91 1026 depends on SYSFS && EXPERIMENTAL
7063fbf2
JB
1027 help
1028 configfs is a ram-based filesystem that provides the converse
1029 of sysfs's functionality. Where sysfs is a filesystem-based
1030 view of kernel objects, configfs is a filesystem-based manager
1031 of kernel objects, or config_items.
1032
1033 Both sysfs and configfs can and should exist together on the
1034 same system. One is not a replacement for the other.
1035
1da177e4
LT
1036endmenu
1037
1038menu "Miscellaneous filesystems"
1039
1040config ADFS_FS
1041 tristate "ADFS file system support (EXPERIMENTAL)"
9361401e 1042 depends on BLOCK && EXPERIMENTAL
1da177e4
LT
1043 help
1044 The Acorn Disc Filing System is the standard file system of the
1045 RiscOS operating system which runs on Acorn's ARM-based Risc PC
1046 systems and the Acorn Archimedes range of machines. If you say Y
1047 here, Linux will be able to read from ADFS partitions on hard drives
1048 and from ADFS-formatted floppy discs. If you also want to be able to
1049 write to those devices, say Y to "ADFS write support" below.
1050
1051 The ADFS partition should be the first partition (i.e.,
1052 /dev/[hs]d?1) on each of your drives. Please read the file
1053 <file:Documentation/filesystems/adfs.txt> for further details.
1054
1055 To compile this code as a module, choose M here: the module will be
1056 called adfs.
1057
1058 If unsure, say N.
1059
1060config ADFS_FS_RW
1061 bool "ADFS write support (DANGEROUS)"
1062 depends on ADFS_FS
1063 help
1064 If you say Y here, you will be able to write to ADFS partitions on
1065 hard drives and ADFS-formatted floppy disks. This is experimental
1066 codes, so if you're unsure, say N.
1067
1068config AFFS_FS
1069 tristate "Amiga FFS file system support (EXPERIMENTAL)"
9361401e 1070 depends on BLOCK && EXPERIMENTAL
1da177e4
LT
1071 help
1072 The Fast File System (FFS) is the common file system used on hard
1073 disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y
1074 if you want to be able to read and write files from and to an Amiga
1075 FFS partition on your hard drive. Amiga floppies however cannot be
1076 read with this driver due to an incompatibility of the floppy
1077 controller used in an Amiga and the standard floppy controller in
1078 PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
1079 and <file:fs/affs/Changes>.
1080
1081 With this driver you can also mount disk files used by Bernd
1082 Schmidt's Un*X Amiga Emulator
1083 (<http://www.freiburg.linux.de/~uae/>).
1084 If you want to do this, you will also need to say Y or M to "Loop
1085 device support", above.
1086
1087 To compile this file system support as a module, choose M here: the
1088 module will be called affs. If unsure, say N.
1089
237fead6
MH
1090config ECRYPT_FS
1091 tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
88b4a07e 1092 depends on EXPERIMENTAL && KEYS && CRYPTO && NET
237fead6
MH
1093 help
1094 Encrypted filesystem that operates on the VFS layer. See
e403149c 1095 <file:Documentation/filesystems/ecryptfs.txt> to learn more about
237fead6
MH
1096 eCryptfs. Userspace components are required and can be
1097 obtained from <http://ecryptfs.sf.net>.
1098
1099 To compile this file system support as a module, choose M here: the
1100 module will be called ecryptfs.
1101
1da177e4
LT
1102config HFS_FS
1103 tristate "Apple Macintosh file system support (EXPERIMENTAL)"
9361401e 1104 depends on BLOCK && EXPERIMENTAL
878129a3 1105 select NLS
1da177e4
LT
1106 help
1107 If you say Y here, you will be able to mount Macintosh-formatted
1108 floppy disks and hard drive partitions with full read-write access.
889c94a1
JFS
1109 Please read <file:Documentation/filesystems/hfs.txt> to learn about
1110 the available mount options.
1da177e4
LT
1111
1112 To compile this file system support as a module, choose M here: the
1113 module will be called hfs.
1114
1115config HFSPLUS_FS
1116 tristate "Apple Extended HFS file system support"
9361401e 1117 depends on BLOCK
1da177e4
LT
1118 select NLS
1119 select NLS_UTF8
1120 help
1121 If you say Y here, you will be able to mount extended format
1122 Macintosh-formatted hard drive partitions with full read-write access.
1123
1124 This file system is often called HFS+ and was introduced with
1125 MacOS 8. It includes all Mac specific filesystem data such as
1126 data forks and creator codes, but it also has several UNIX
1127 style features such as file ownership and permissions.
1128
1129config BEFS_FS
1130 tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
9361401e 1131 depends on BLOCK && EXPERIMENTAL
1da177e4
LT
1132 select NLS
1133 help
1134 The BeOS File System (BeFS) is the native file system of Be, Inc's
1135 BeOS. Notable features include support for arbitrary attributes
3cb2fccc 1136 on files and directories, and database-like indices on selected
1da177e4
LT
1137 attributes. (Also note that this driver doesn't make those features
1138 available at this time). It is a 64 bit filesystem, so it supports
44c09201 1139 extremely large volumes and files.
1da177e4
LT
1140
1141 If you use this filesystem, you should also say Y to at least one
1142 of the NLS (native language support) options below.
1143
1144 If you don't know what this is about, say N.
1145
1146 To compile this as a module, choose M here: the module will be
1147 called befs.
1148
1149config BEFS_DEBUG
1150 bool "Debug BeFS"
1151 depends on BEFS_FS
1152 help
1153 If you say Y here, you can use the 'debug' mount option to enable
1154 debugging output from the driver.
1155
1156config BFS_FS
1157 tristate "BFS file system support (EXPERIMENTAL)"
9361401e 1158 depends on BLOCK && EXPERIMENTAL
1da177e4
LT
1159 help
1160 Boot File System (BFS) is a file system used under SCO UnixWare to
1161 allow the bootloader access to the kernel image and other important
1162 files during the boot process. It is usually mounted under /stand
1163 and corresponds to the slice marked as "STAND" in the UnixWare
1164 partition. You should say Y if you want to read or write the files
1165 on your /stand slice from within Linux. You then also need to say Y
1166 to "UnixWare slices support", below. More information about the BFS
1167 file system is contained in the file
1168 <file:Documentation/filesystems/bfs.txt>.
1169
1170 If you don't know what this is about, say N.
1171
1172 To compile this as a module, choose M here: the module will be called
1173 bfs. Note that the file system of your root partition (the one
1174 containing the directory /) cannot be compiled as a module.
1175
1176
1177
1178config EFS_FS
1179 tristate "EFS file system support (read only) (EXPERIMENTAL)"
9361401e 1180 depends on BLOCK && EXPERIMENTAL
1da177e4
LT
1181 help
1182 EFS is an older file system used for non-ISO9660 CD-ROMs and hard
1183 disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
1184 uses the XFS file system for hard disk partitions however).
1185
1186 This implementation only offers read-only access. If you don't know
1187 what all this is about, it's safe to say N. For more information
1188 about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
1189
1190 To compile the EFS file system support as a module, choose M here: the
1191 module will be called efs.
1192
1da177e4
LT
1193config JFFS2_FS
1194 tristate "Journalling Flash File System v2 (JFFS2) support"
1195 select CRC32
1196 depends on MTD
1197 help
1198 JFFS2 is the second generation of the Journalling Flash File System
1199 for use on diskless embedded devices. It provides improved wear
1200 levelling, compression and support for hard links. You cannot use
1201 this on normal block devices, only on 'MTD' devices.
1202
1203 Further information on the design and implementation of JFFS2 is
1204 available at <http://sources.redhat.com/jffs2/>.
1205
1206config JFFS2_FS_DEBUG
1207 int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
1208 depends on JFFS2_FS
1209 default "0"
1210 help
1211 This controls the amount of debugging messages produced by the JFFS2
1212 code. Set it to zero for use in production systems. For evaluation,
1213 testing and debugging, it's advisable to set it to one. This will
1214 enable a few assertions and will print debugging messages at the
1215 KERN_DEBUG loglevel, where they won't normally be visible. Level 2
1216 is unlikely to be useful - it enables extra debugging in certain
1217 areas which at one point needed debugging, but when the bugs were
1218 located and fixed, the detailed messages were relegated to level 2.
1219
1220 If reporting bugs, please try to have available a full dump of the
1221 messages at debug level 1 while the misbehaviour was occurring.
1222
2ba72cb7
DW
1223config JFFS2_FS_WRITEBUFFER
1224 bool "JFFS2 write-buffering support"
aa98d7cf 1225 depends on JFFS2_FS
2ba72cb7
DW
1226 default y
1227 help
1228 This enables the write-buffering support in JFFS2.
1229
1230 This functionality is required to support JFFS2 on the following
1231 types of flash devices:
1232 - NAND flash
1233 - NOR flash with transparent ECC
1234 - DataFlash
1235
a6bc432e
DW
1236config JFFS2_FS_WBUF_VERIFY
1237 bool "Verify JFFS2 write-buffer reads"
1238 depends on JFFS2_FS_WRITEBUFFER
1239 default n
1240 help
1241 This causes JFFS2 to read back every page written through the
1242 write-buffer, and check for errors.
1243
2ba72cb7
DW
1244config JFFS2_SUMMARY
1245 bool "JFFS2 summary support (EXPERIMENTAL)"
1246 depends on JFFS2_FS && EXPERIMENTAL
1247 default n
1248 help
1249 This feature makes it possible to use summary information
1250 for faster filesystem mount.
1251
1252 The summary information can be inserted into a filesystem image
1253 by the utility 'sumtool'.
1254
1255 If unsure, say 'N'.
1256
1257config JFFS2_FS_XATTR
1258 bool "JFFS2 XATTR support (EXPERIMENTAL)"
04510dee 1259 depends on JFFS2_FS && EXPERIMENTAL
aa98d7cf
KK
1260 default n
1261 help
1262 Extended attributes are name:value pairs associated with inodes by
1263 the kernel or by users (see the attr(5) manual page, or visit
1264 <http://acl.bestbits.at/> for details).
1265
1266 If unsure, say N.
1267
1268config JFFS2_FS_POSIX_ACL
1269 bool "JFFS2 POSIX Access Control Lists"
1270 depends on JFFS2_FS_XATTR
1271 default y
1272 select FS_POSIX_ACL
1273 help
1274 Posix Access Control Lists (ACLs) support permissions for users and
1275 groups beyond the owner/group/world scheme.
1276
1277 To learn more about Access Control Lists, visit the Posix ACLs for
1278 Linux website <http://acl.bestbits.at/>.
1279
1280 If you don't know what Access Control Lists are, say N
1281
1282config JFFS2_FS_SECURITY
1283 bool "JFFS2 Security Labels"
1284 depends on JFFS2_FS_XATTR
1285 default y
1286 help
1287 Security labels support alternative access control models
1288 implemented by security modules like SELinux. This option
1289 enables an extended attribute handler for file security
1290 labels in the jffs2 filesystem.
1291
1292 If you are not using a security module that requires using
1293 extended attributes for file security labels, say N.
1294
1da177e4
LT
1295config JFFS2_COMPRESSION_OPTIONS
1296 bool "Advanced compression options for JFFS2"
1297 depends on JFFS2_FS
1298 default n
1299 help
1300 Enabling this option allows you to explicitly choose which
1301 compression modules, if any, are enabled in JFFS2. Removing
9e2de407 1302 compressors can mean you cannot read existing file systems,
1da177e4
LT
1303 and enabling experimental compressors can mean that you
1304 write a file system which cannot be read by a standard kernel.
1305
1306 If unsure, you should _definitely_ say 'N'.
1307
1308config JFFS2_ZLIB
1309 bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS
1310 select ZLIB_INFLATE
1311 select ZLIB_DEFLATE
1312 depends on JFFS2_FS
1313 default y
ef53cb02
DW
1314 help
1315 Zlib is designed to be a free, general-purpose, legally unencumbered,
1316 lossless data-compression library for use on virtually any computer
1317 hardware and operating system. See <http://www.gzip.org/zlib/> for
1318 further information.
182ec4ee 1319
ef53cb02 1320 Say 'Y' if unsure.
1da177e4 1321
c799aca3
RP
1322config JFFS2_LZO
1323 bool "JFFS2 LZO compression support" if JFFS2_COMPRESSION_OPTIONS
1324 select LZO_COMPRESS
1325 select LZO_DECOMPRESS
1326 depends on JFFS2_FS
3ca135e1 1327 default n
c799aca3
RP
1328 help
1329 minilzo-based compression. Generally works better than Zlib.
1330
3ca135e1
DW
1331 This feature was added in July, 2007. Say 'N' if you need
1332 compatibility with older bootloaders or kernels.
c799aca3 1333
1da177e4
LT
1334config JFFS2_RTIME
1335 bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
1336 depends on JFFS2_FS
1337 default y
ef53cb02
DW
1338 help
1339 Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
1da177e4
LT
1340
1341config JFFS2_RUBIN
1342 bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
1343 depends on JFFS2_FS
1344 default n
ef53cb02
DW
1345 help
1346 RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
1da177e4
LT
1347
1348choice
ef53cb02
DW
1349 prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
1350 default JFFS2_CMODE_PRIORITY
1351 depends on JFFS2_FS
1352 help
1353 You can set here the default compression mode of JFFS2 from
1354 the available compression modes. Don't touch if unsure.
1da177e4
LT
1355
1356config JFFS2_CMODE_NONE
ef53cb02
DW
1357 bool "no compression"
1358 help
1359 Uses no compression.
1da177e4
LT
1360
1361config JFFS2_CMODE_PRIORITY
ef53cb02
DW
1362 bool "priority"
1363 help
1364 Tries the compressors in a predefined order and chooses the first
1365 successful one.
1da177e4
LT
1366
1367config JFFS2_CMODE_SIZE
ef53cb02
DW
1368 bool "size (EXPERIMENTAL)"
1369 help
1370 Tries all compressors and chooses the one which has the smallest
1371 result.
1da177e4 1372
3b23c1f5
RP
1373config JFFS2_CMODE_FAVOURLZO
1374 bool "Favour LZO"
1375 help
1376 Tries all compressors and chooses the one which has the smallest
1377 result but gives some preference to LZO (which has faster
1378 decompression) at the expense of size.
1379
1da177e4
LT
1380endchoice
1381
1382config CRAMFS
1383 tristate "Compressed ROM file system support (cramfs)"
9361401e 1384 depends on BLOCK
1da177e4
LT
1385 select ZLIB_INFLATE
1386 help
1387 Saying Y here includes support for CramFs (Compressed ROM File
1388 System). CramFs is designed to be a simple, small, and compressed
1389 file system for ROM based embedded systems. CramFs is read-only,
1390 limited to 256MB file systems (with 16MB files), and doesn't support
1391 16/32 bits uid/gid, hard links and timestamps.
1392
1393 See <file:Documentation/filesystems/cramfs.txt> and
1394 <file:fs/cramfs/README> for further information.
1395
1396 To compile this as a module, choose M here: the module will be called
1397 cramfs. Note that the root file system (the one containing the
1398 directory /) cannot be compiled as a module.
1399
1400 If unsure, say N.
1401
1402config VXFS_FS
1403 tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
9361401e 1404 depends on BLOCK
1da177e4
LT
1405 help
1406 FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
1407 file system format. VERITAS VxFS(TM) is the standard file system
1408 of SCO UnixWare (and possibly others) and optionally available
1409 for Sunsoft Solaris, HP-UX and many other operating systems.
1410 Currently only readonly access is supported.
1411
1412 NOTE: the file system type as used by mount(1), mount(2) and
1413 fstab(5) is 'vxfs' as it describes the file system format, not
1414 the actual driver.
1415
1416 To compile this as a module, choose M here: the module will be
1417 called freevxfs. If unsure, say N.
1418
1419
1420config HPFS_FS
1421 tristate "OS/2 HPFS file system support"
9361401e 1422 depends on BLOCK
1da177e4
LT
1423 help
1424 OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
1425 is the file system used for organizing files on OS/2 hard disk
1426 partitions. Say Y if you want to be able to read files from and
1427 write files to an OS/2 HPFS partition on your hard drive. OS/2
1428 floppies however are in regular MSDOS format, so you don't need this
1429 option in order to be able to read them. Read
1430 <file:Documentation/filesystems/hpfs.txt>.
1431
1432 To compile this file system support as a module, choose M here: the
1433 module will be called hpfs. If unsure, say N.
1434
1435
1436
1437config QNX4FS_FS
1438 tristate "QNX4 file system support (read only)"
9361401e 1439 depends on BLOCK
1da177e4
LT
1440 help
1441 This is the file system used by the real-time operating systems
1442 QNX 4 and QNX 6 (the latter is also called QNX RTP).
1443 Further information is available at <http://www.qnx.com/>.
1444 Say Y if you intend to mount QNX hard disks or floppies.
1445 Unless you say Y to "QNX4FS read-write support" below, you will
1446 only be able to read these file systems.
1447
1448 To compile this file system support as a module, choose M here: the
1449 module will be called qnx4.
1450
1451 If you don't know whether you need it, then you don't need it:
1452 answer N.
1453
1454config QNX4FS_RW
1455 bool "QNX4FS write support (DANGEROUS)"
1456 depends on QNX4FS_FS && EXPERIMENTAL && BROKEN
1457 help
1458 Say Y if you want to test write support for QNX4 file systems.
1459
1460 It's currently broken, so for now:
1461 answer N.
1462
1463
1464
1465config SYSV_FS
1466 tristate "System V/Xenix/V7/Coherent file system support"
9361401e 1467 depends on BLOCK
1da177e4
LT
1468 help
1469 SCO, Xenix and Coherent are commercial Unix systems for Intel
1470 machines, and Version 7 was used on the DEC PDP-11. Saying Y
1471 here would allow you to read from their floppies and hard disk
1472 partitions.
1473
1474 If you have floppies or hard disk partitions like that, it is likely
1475 that they contain binaries from those other Unix systems; in order
cab00891 1476 to run these binaries, you will want to install linux-abi which is
1da177e4
LT
1477 a set of kernel modules that lets you run SCO, Xenix, Wyse,
1478 UnixWare, Dell Unix and System V programs under Linux. It is
1479 available via FTP (user: ftp) from
1480 <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
1481 NOTE: that will work only for binaries from Intel-based systems;
1482 PDP ones will have to wait until somebody ports Linux to -11 ;-)
1483
1484 If you only intend to mount files from some other Unix over the
1485 network using NFS, you don't need the System V file system support
1486 (but you need NFS file system support obviously).
1487
1488 Note that this option is generally not needed for floppies, since a
1489 good portable way to transport files and directories between unixes
1490 (and even other operating systems) is given by the tar program ("man
1491 tar" or preferably "info tar"). Note also that this option has
1492 nothing whatsoever to do with the option "System V IPC". Read about
1493 the System V file system in
1494 <file:Documentation/filesystems/sysv-fs.txt>.
1495 Saying Y here will enlarge your kernel by about 27 KB.
1496
1497 To compile this as a module, choose M here: the module will be called
1498 sysv.
1499
1500 If you haven't heard about all of this before, it's safe to say N.
1501
1502
1503
1504config UFS_FS
1505 tristate "UFS file system support (read only)"
9361401e 1506 depends on BLOCK
1da177e4
LT
1507 help
1508 BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
1509 OpenBSD and NeXTstep) use a file system called UFS. Some System V
1510 Unixes can create and mount hard disk partitions and diskettes using
1511 this file system as well. Saying Y here will allow you to read from
1512 these partitions; if you also want to write to them, say Y to the
1513 experimental "UFS file system write support", below. Please read the
1514 file <file:Documentation/filesystems/ufs.txt> for more information.
1515
1516 The recently released UFS2 variant (used in FreeBSD 5.x) is
1517 READ-ONLY supported.
1518
1519 If you only intend to mount files from some other Unix over the
1520 network using NFS, you don't need the UFS file system support (but
1521 you need NFS file system support obviously).
1522
1523 Note that this option is generally not needed for floppies, since a
1524 good portable way to transport files and directories between unixes
1525 (and even other operating systems) is given by the tar program ("man
1526 tar" or preferably "info tar").
1527
1528 When accessing NeXTstep files, you may need to convert them from the
1529 NeXT character set to the Latin1 character set; use the program
1530 recode ("info recode") for this purpose.
1531
1532 To compile the UFS file system support as a module, choose M here: the
1533 module will be called ufs.
1534
1535 If you haven't heard about all of this before, it's safe to say N.
1536
1537config UFS_FS_WRITE
1538 bool "UFS file system write support (DANGEROUS)"
5afb3145 1539 depends on UFS_FS && EXPERIMENTAL
1da177e4
LT
1540 help
1541 Say Y here if you want to try writing to UFS partitions. This is
1542 experimental, so you should back up your UFS partitions beforehand.
1543
abf5d15f
ED
1544config UFS_DEBUG
1545 bool "UFS debugging"
1546 depends on UFS_FS
1547 help
1548 If you are experiencing any problems with the UFS filesystem, say
1549 Y here. This will result in _many_ additional debugging messages to be
1550 written to the system log.
1551
1da177e4
LT
1552endmenu
1553
ea0985ad
JE
1554menuconfig NETWORK_FILESYSTEMS
1555 bool "Network File Systems"
1556 default y
1da177e4 1557 depends on NET
ea0985ad
JE
1558 ---help---
1559 Say Y here to get to see options for network filesystems and
1560 filesystem-related networking code, such as NFS daemon and
1561 RPCSEC security modules.
1562 This option alone does not add any kernel code.
1563
1564 If you say N, all options in this submenu will be skipped and
1565 disabled; if unsure, say Y here.
1566
1567if NETWORK_FILESYSTEMS
1da177e4
LT
1568
1569config NFS_FS
1570 tristate "NFS file system support"
1571 depends on INET
1572 select LOCKD
1573 select SUNRPC
b7fa0554 1574 select NFS_ACL_SUPPORT if NFS_V3_ACL
1da177e4
LT
1575 help
1576 If you are connected to some other (usually local) Unix computer
1577 (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
1578 on that computer (the NFS server) using the Network File Sharing
1579 protocol, say Y. "Mounting files" means that the client can access
1580 the files with usual UNIX commands as if they were sitting on the
1581 client's hard disk. For this to work, the server must run the
1582 programs nfsd and mountd (but does not need to have NFS file system
1583 support enabled in its kernel). NFS is explained in the Network
1584 Administrator's Guide, available from
1585 <http://www.tldp.org/docs.html#guide>, on its man page: "man
1586 nfs", and in the NFS-HOWTO.
1587
1588 A superior but less widely used alternative to NFS is provided by
1589 the Coda file system; see "Coda file system support" below.
1590
1591 If you say Y here, you should have said Y to TCP/IP networking also.
1592 This option would enlarge your kernel by about 27 KB.
1593
1594 To compile this file system support as a module, choose M here: the
1595 module will be called nfs.
1596
1597 If you are configuring a diskless machine which will mount its root
1598 file system over NFS at boot time, say Y here and to "Kernel
1599 level IP autoconfiguration" above and to "Root file system on NFS"
1600 below. You cannot compile this driver as a module in this case.
1601 There are two packages designed for booting diskless machines over
1602 the net: netboot, available from
1603 <http://ftp1.sourceforge.net/netboot/>, and Etherboot,
1604 available from <http://ftp1.sourceforge.net/etherboot/>.
1605
1606 If you don't know what all this is about, say N.
1607
1608config NFS_V3
1609 bool "Provide NFSv3 client support"
1610 depends on NFS_FS
1611 help
1612 Say Y here if you want your NFS client to be able to speak version
1613 3 of the NFS protocol.
1614
1615 If unsure, say Y.
1616
b7fa0554
AG
1617config NFS_V3_ACL
1618 bool "Provide client support for the NFSv3 ACL protocol extension"
1619 depends on NFS_V3
1620 help
1621 Implement the NFSv3 ACL protocol extension for manipulating POSIX
1622 Access Control Lists. The server should also be compiled with
1623 the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option.
1624
1625 If unsure, say N.
1626
1da177e4
LT
1627config NFS_V4
1628 bool "Provide NFSv4 client support (EXPERIMENTAL)"
1629 depends on NFS_FS && EXPERIMENTAL
1630 select RPCSEC_GSS_KRB5
1631 help
1632 Say Y here if you want your NFS client to be able to speak the newer
1633 version 4 of the NFS protocol.
1634
1635 Note: Requires auxiliary userspace daemons which may be found on
1636 http://www.citi.umich.edu/projects/nfsv4/
1637
1638 If unsure, say N.
1639
1640config NFS_DIRECTIO
026ed5c9
CL
1641 bool "Allow direct I/O on NFS files"
1642 depends on NFS_FS
1da177e4
LT
1643 help
1644 This option enables applications to perform uncached I/O on files
1645 in NFS file systems using the O_DIRECT open() flag. When O_DIRECT
1646 is set for a file, its data is not cached in the system's page
1647 cache. Data is moved to and from user-level application buffers
1648 directly. Unlike local disk-based file systems, NFS O_DIRECT has
1649 no alignment restrictions.
1650
1651 Unless your program is designed to use O_DIRECT properly, you are
1652 much better off allowing the NFS client to manage data caching for
1653 you. Misusing O_DIRECT can cause poor server performance or network
1654 storms. This kernel build option defaults OFF to avoid exposing
1655 system administrators unwittingly to a potentially hazardous
1656 feature.
1657
1658 For more details on NFS O_DIRECT, see fs/nfs/direct.c.
1659
1660 If unsure, say N. This reduces the size of the NFS client, and
1661 causes open() to return EINVAL if a file residing in NFS is
1662 opened with the O_DIRECT flag.
1663
1664config NFSD
1665 tristate "NFS server support"
1666 depends on INET
1667 select LOCKD
1668 select SUNRPC
1669 select EXPORTFS
f05e15b5
HX
1670 select NFSD_V2_ACL if NFSD_V3_ACL
1671 select NFS_ACL_SUPPORT if NFSD_V2_ACL
1672 select NFSD_TCP if NFSD_V4
1673 select CRYPTO_MD5 if NFSD_V4
1674 select CRYPTO if NFSD_V4
1675 select FS_POSIX_ACL if NFSD_V4
1da177e4
LT
1676 help
1677 If you want your Linux box to act as an NFS *server*, so that other
1678 computers on your local network which support NFS can access certain
1679 directories on your box transparently, you have two options: you can
1680 use the self-contained user space program nfsd, in which case you
1681 should say N here, or you can say Y and use the kernel based NFS
1682 server. The advantage of the kernel based solution is that it is
1683 faster.
1684
1685 In either case, you will need support software; the respective
1686 locations are given in the file <file:Documentation/Changes> in the
1687 NFS section.
1688
1689 If you say Y here, you will get support for version 2 of the NFS
1690 protocol (NFSv2). If you also want NFSv3, say Y to the next question
1691 as well.
1692
1693 Please read the NFS-HOWTO, available from
1694 <http://www.tldp.org/docs.html#howto>.
1695
1696 To compile the NFS server support as a module, choose M here: the
1697 module will be called nfsd. If unsure, say N.
1698
a257cdd0
AG
1699config NFSD_V2_ACL
1700 bool
1701 depends on NFSD
1702
1da177e4
LT
1703config NFSD_V3
1704 bool "Provide NFSv3 server support"
1705 depends on NFSD
1706 help
1707 If you would like to include the NFSv3 server as well as the NFSv2
1708 server, say Y here. If unsure, say Y.
1709
a257cdd0
AG
1710config NFSD_V3_ACL
1711 bool "Provide server support for the NFSv3 ACL protocol extension"
1712 depends on NFSD_V3
a257cdd0
AG
1713 help
1714 Implement the NFSv3 ACL protocol extension for manipulating POSIX
1715 Access Control Lists on exported file systems. NFS clients should
1716 be compiled with the NFSv3 ACL protocol extension; see the
1717 CONFIG_NFS_V3_ACL option. If unsure, say N.
1718
1da177e4
LT
1719config NFSD_V4
1720 bool "Provide NFSv4 server support (EXPERIMENTAL)"
8cd69e1b 1721 depends on NFSD && NFSD_V3 && EXPERIMENTAL
42ed95c4 1722 select RPCSEC_GSS_KRB5
1da177e4
LT
1723 help
1724 If you would like to include the NFSv4 server as well as the NFSv2
1725 and NFSv3 servers, say Y here. This feature is experimental, and
1726 should only be used if you are interested in helping to test NFSv4.
1727 If unsure, say N.
1728
1729config NFSD_TCP
1730 bool "Provide NFS server over TCP support"
1731 depends on NFSD
1732 default y
1733 help
1734 If you want your NFS server to support TCP connections, say Y here.
1735 TCP connections usually perform better than the default UDP when
1736 the network is lossy or congested. If unsure, say Y.
1737
1738config ROOT_NFS
1739 bool "Root file system on NFS"
1740 depends on NFS_FS=y && IP_PNP
1741 help
1742 If you want your Linux box to mount its whole root file system (the
1743 one containing the directory /) from some other computer over the
1744 net via NFS (presumably because your box doesn't have a hard disk),
1745 say Y. Read <file:Documentation/nfsroot.txt> for details. It is
1746 likely that in this case, you also want to say Y to "Kernel level IP
1747 autoconfiguration" so that your box can discover its network address
1748 at boot time.
1749
1750 Most people say N here.
1751
1752config LOCKD
1753 tristate
1754
1755config LOCKD_V4
1756 bool
1757 depends on NFSD_V3 || NFS_V3
1758 default y
1759
1760config EXPORTFS
1761 tristate
1762
a257cdd0
AG
1763config NFS_ACL_SUPPORT
1764 tristate
1765 select FS_POSIX_ACL
1766
1767config NFS_COMMON
1768 bool
1769 depends on NFSD || NFS_FS
1770 default y
1771
1da177e4
LT
1772config SUNRPC
1773 tristate
1774
1775config SUNRPC_GSS
1776 tristate
1777
c3a57ed7
TT
1778config SUNRPC_XPRT_RDMA
1779 tristate "RDMA transport for sunrpc (EXPERIMENTAL)"
113632d0 1780 depends on SUNRPC && INFINIBAND && EXPERIMENTAL
c3a57ed7
TT
1781 default m
1782 help
1783 Adds a client RPC transport for supporting kernel NFS over RDMA
1784 mounts, including Infiniband and iWARP. Experimental.
1785
00a6e7bb
CL
1786config SUNRPC_BIND34
1787 bool "Support for rpcbind versions 3 & 4 (EXPERIMENTAL)"
1788 depends on SUNRPC && EXPERIMENTAL
1789 help
1790 Provides kernel support for querying rpcbind servers via versions 3
1791 and 4 of the rpcbind protocol. The kernel automatically falls back
1792 to version 2 if a remote rpcbind service does not support versions
1793 3 or 4.
1794
1795 If unsure, say N to get traditional behavior (version 2 rpcbind
1796 requests only).
1797
1da177e4
LT
1798config RPCSEC_GSS_KRB5
1799 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
1800 depends on SUNRPC && EXPERIMENTAL
1801 select SUNRPC_GSS
1802 select CRYPTO
1803 select CRYPTO_MD5
1804 select CRYPTO_DES
bcbaecbb 1805 select CRYPTO_CBC
1da177e4
LT
1806 help
1807 Provides for secure RPC calls by means of a gss-api
1808 mechanism based on Kerberos V5. This is required for
1809 NFSv4.
1810
1811 Note: Requires an auxiliary userspace daemon which may be found on
1812 http://www.citi.umich.edu/projects/nfsv4/
1813
1814 If unsure, say N.
1815
1816config RPCSEC_GSS_SPKM3
1817 tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
1818 depends on SUNRPC && EXPERIMENTAL
1819 select SUNRPC_GSS
1820 select CRYPTO
1821 select CRYPTO_MD5
1822 select CRYPTO_DES
df6db302 1823 select CRYPTO_CAST5
bcbaecbb 1824 select CRYPTO_CBC
1da177e4
LT
1825 help
1826 Provides for secure RPC calls by means of a gss-api
1827 mechanism based on the SPKM3 public-key mechanism.
1828
1829 Note: Requires an auxiliary userspace daemon which may be found on
1830 http://www.citi.umich.edu/projects/nfsv4/
1831
1832 If unsure, say N.
1833
1834config SMB_FS
1835 tristate "SMB file system support (to mount Windows shares etc.)"
1836 depends on INET
1837 select NLS
1838 help
1839 SMB (Server Message Block) is the protocol Windows for Workgroups
1840 (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
1841 files and printers over local networks. Saying Y here allows you to
1842 mount their file systems (often called "shares" in this context) and
1843 access them just like any other Unix directory. Currently, this
1844 works only if the Windows machines use TCP/IP as the underlying
1845 transport protocol, and not NetBEUI. For details, read
1846 <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
1847 available from <http://www.tldp.org/docs.html#howto>.
1848
1849 Note: if you just want your box to act as an SMB *server* and make
1850 files and printing services available to Windows clients (which need
1851 to have a TCP/IP stack), you don't need to say Y here; you can use
1852 the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
1853 for that.
1854
1855 General information about how to connect Linux, Windows machines and
1856 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1857
1858 To compile the SMB support as a module, choose M here: the module will
1859 be called smbfs. Most people say N, however.
1860
1861config SMB_NLS_DEFAULT
1862 bool "Use a default NLS"
1863 depends on SMB_FS
1864 help
1865 Enabling this will make smbfs use nls translations by default. You
1866 need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
1867 settings and you need to give the default nls for the SMB server as
1868 CONFIG_SMB_NLS_REMOTE.
1869
1870 The nls settings can be changed at mount time, if your smbmount
1871 supports that, using the codepage and iocharset parameters.
1872
1873 smbmount from samba 2.2.0 or later supports this.
1874
1875config SMB_NLS_REMOTE
1876 string "Default Remote NLS Option"
1877 depends on SMB_NLS_DEFAULT
1878 default "cp437"
1879 help
1880 This setting allows you to specify a default value for which
1881 codepage the server uses. If this field is left blank no
1882 translations will be done by default. The local codepage/charset
1883 default to CONFIG_NLS_DEFAULT.
1884
1885 The nls settings can be changed at mount time, if your smbmount
1886 supports that, using the codepage and iocharset parameters.
1887
1888 smbmount from samba 2.2.0 or later supports this.
1889
1890config CIFS
1891 tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)"
1892 depends on INET
1893 select NLS
1894 help
1895 This is the client VFS module for the Common Internet File System
1896 (CIFS) protocol which is the successor to the Server Message Block
1897 (SMB) protocol, the native file sharing mechanism for most early
1898 PC operating systems. The CIFS protocol is fully supported by
1899 file servers such as Windows 2000 (including Windows 2003, NT 4
1900 and Windows XP) as well by Samba (which provides excellent CIFS
ec58ef03 1901 server support for Linux and many other operating systems). Limited
8af18971 1902 support for OS/2 and Windows ME and similar servers is provided as well.
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1903
1904 The intent of the cifs module is to provide an advanced
8af18971 1905 network file system client for mounting to CIFS compliant servers,
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1906 including support for dfs (hierarchical name space), secure per-user
1907 session establishment, safe distributed caching (oplock), optional
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SF
1908 packet signing, Unicode and other internationalization improvements.
1909 If you need to mount to Samba or Windows from this machine, say Y.
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1910
1911config CIFS_STATS
1912 bool "CIFS statistics"
1913 depends on CIFS
1914 help
1915 Enabling this option will cause statistics for each server share
1916 mounted by the cifs client to be displayed in /proc/fs/cifs/Stats
1917
ec58ef03 1918config CIFS_STATS2
3979877e 1919 bool "Extended statistics"
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SF
1920 depends on CIFS_STATS
1921 help
1922 Enabling this option will allow more detailed statistics on SMB
1923 request timing to be displayed in /proc/fs/cifs/DebugData and also
1924 allow optional logging of slow responses to dmesg (depending on the
1925 value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details).
1926 These additional statistics may have a minor effect on performance
1927 and memory utilization.
1928
1929 Unless you are a developer or are doing network performance analysis
1930 or tuning, say N.
1931
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SF
1932config CIFS_WEAK_PW_HASH
1933 bool "Support legacy servers which use weaker LANMAN security"
1934 depends on CIFS
1935 help
1936 Modern CIFS servers including Samba and most Windows versions
1937 (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos)
1938 security mechanisms. These hash the password more securely
1939 than the mechanisms used in the older LANMAN version of the
1940 SMB protocol needed to establish sessions with old SMB servers.
1941
1942 Enabling this option allows the cifs module to mount to older
1943 LANMAN based servers such as OS/2 and Windows 95, but such
1944 mounts may be less secure than mounts using NTLM or more recent
1945 security mechanisms if you are on a public network. Unless you
1946 have a need to access old SMB servers (and are on a private
1947 network) you probably want to say N. Even if this support
1948 is enabled in the kernel build, they will not be used
1949 automatically. At runtime LANMAN mounts are disabled but
1950 can be set to required (or optional) either in
1951 /proc/fs/cifs (see fs/cifs/README for more detail) or via an
1952 option on the mount command. This support is disabled by
1953 default in order to reduce the possibility of a downgrade
1954 attack.
1955
1956 If unsure, say N.
1957
1da177e4 1958config CIFS_XATTR
ec58ef03 1959 bool "CIFS extended attributes"
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LT
1960 depends on CIFS
1961 help
1962 Extended attributes are name:value pairs associated with inodes by
1963 the kernel or by users (see the attr(5) manual page, or visit
1964 <http://acl.bestbits.at/> for details). CIFS maps the name of
1965 extended attributes beginning with the user namespace prefix
1966 to SMB/CIFS EAs. EAs are stored on Windows servers without the
1967 user namespace prefix, but their names are seen by Linux cifs clients
1968 prefaced by the user namespace prefix. The system namespace
1969 (used by some filesystems to store ACLs) is not supported at
1970 this time.
ec58ef03 1971
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LT
1972 If unsure, say N.
1973
1974config CIFS_POSIX
ec58ef03 1975 bool "CIFS POSIX Extensions"
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LT
1976 depends on CIFS_XATTR
1977 help
1978 Enabling this option will cause the cifs client to attempt to
1979 negotiate a newer dialect with servers, such as Samba 3.0.5
1980 or later, that optionally can handle more POSIX like (rather
1981 than Windows like) file behavior. It also enables
1982 support for POSIX ACLs (getfacl and setfacl) to servers
1983 (such as Samba 3.10 and later) which can negotiate
1984 CIFS POSIX ACL support. If unsure, say N.
1985
3979877e 1986config CIFS_DEBUG2
3856a9d4 1987 bool "Enable additional CIFS debugging routines"
8ba10ab1 1988 depends on CIFS
3979877e
SF
1989 help
1990 Enabling this option adds a few more debugging routines
1991 to the cifs code which slightly increases the size of
1992 the cifs module and can cause additional logging of debug
1993 messages in some error paths, slowing performance. This
1994 option can be turned off unless you are debugging
1995 cifs problems. If unsure, say N.
1996
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LT
1997config CIFS_EXPERIMENTAL
1998 bool "CIFS Experimental Features (EXPERIMENTAL)"
cb9dbff9 1999 depends on CIFS && EXPERIMENTAL
1da177e4 2000 help
ec58ef03 2001 Enables cifs features under testing. These features are
8af18971
SF
2002 experimental and currently include DFS support and directory
2003 change notification ie fcntl(F_DNOTIFY), as well as the upcall
2004 mechanism which will be used for Kerberos session negotiation
2005 and uid remapping. Some of these features also may depend on
2006 setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental
2007 (which is disabled by default). See the file fs/cifs/README
2008 for more details. If unsure, say N.
1da177e4 2009
a2653eba 2010config CIFS_UPCALL
3979877e 2011 bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
a2653eba 2012 depends on CIFS_EXPERIMENTAL
09fe7ba7 2013 depends on KEYS
a2653eba
SF
2014 help
2015 Enables an upcall mechanism for CIFS which will be used to contact
2016 userspace helper utilities to provide SPNEGO packaged Kerberos
2017 tickets which are needed to mount to certain secure servers
1b397f4f
SF
2018 (for which more secure Kerberos authentication is required). If
2019 unsure, say N.
a2653eba 2020
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LT
2021config NCP_FS
2022 tristate "NCP file system support (to mount NetWare volumes)"
2023 depends on IPX!=n || INET
2024 help
2025 NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
2026 used by Novell NetWare clients to talk to file servers. It is to
2027 IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you
2028 to mount NetWare file server volumes and to access them just like
2029 any other Unix directory. For details, please read the file
2030 <file:Documentation/filesystems/ncpfs.txt> in the kernel source and
2031 the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
2032
2033 You do not have to say Y here if you want your Linux box to act as a
2034 file *server* for Novell NetWare clients.
2035
2036 General information about how to connect Linux, Windows machines and
2037 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
2038
2039 To compile this as a module, choose M here: the module will be called
2040 ncpfs. Say N unless you are connected to a Novell network.
2041
2042source "fs/ncpfs/Kconfig"
2043
2044config CODA_FS
2045 tristate "Coda file system support (advanced network fs)"
2046 depends on INET
2047 help
2048 Coda is an advanced network file system, similar to NFS in that it
2049 enables you to mount file systems of a remote server and access them
2050 with regular Unix commands as if they were sitting on your hard
2051 disk. Coda has several advantages over NFS: support for
2052 disconnected operation (e.g. for laptops), read/write server
2053 replication, security model for authentication and encryption,
2054 persistent client caches and write back caching.
2055
2056 If you say Y here, your Linux box will be able to act as a Coda
2057 *client*. You will need user level code as well, both for the
2058 client and server. Servers are currently user level, i.e. they need
2059 no kernel support. Please read
2060 <file:Documentation/filesystems/coda.txt> and check out the Coda
2061 home page <http://www.coda.cs.cmu.edu/>.
2062
2063 To compile the coda client support as a module, choose M here: the
2064 module will be called coda.
2065
2066config CODA_FS_OLD_API
2067 bool "Use 96-bit Coda file identifiers"
2068 depends on CODA_FS
2069 help
2070 A new kernel-userspace API had to be introduced for Coda v6.0
2071 to support larger 128-bit file identifiers as needed by the
2072 new realms implementation.
2073
2074 However this new API is not backward compatible with older
2075 clients. If you really need to run the old Coda userspace
2076 cache manager then say Y.
2077
2078 For most cases you probably want to say N.
2079
2080config AFS_FS
64aaa4f8 2081 tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
1da177e4 2082 depends on INET && EXPERIMENTAL
08e0e7c8 2083 select AF_RXRPC
1da177e4
LT
2084 help
2085 If you say Y here, you will get an experimental Andrew File System
2086 driver. It currently only supports unsecured read-only AFS access.
2087
cc2e2767 2088 See <file:Documentation/filesystems/afs.txt> for more information.
1da177e4
LT
2089
2090 If unsure, say N.
2091
08e0e7c8
DH
2092config AFS_DEBUG
2093 bool "AFS dynamic debugging"
2094 depends on AFS_FS
2095 help
2096 Say Y here to make runtime controllable debugging messages appear.
2097
2098 See <file:Documentation/filesystems/afs.txt> for more information.
2099
2100 If unsure, say N.
2101
93fa58cb
EVH
2102config 9P_FS
2103 tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
bd238fb4 2104 depends on INET && NET_9P && EXPERIMENTAL
93fa58cb
EVH
2105 help
2106 If you say Y here, you will get experimental support for
2107 Plan 9 resource sharing via the 9P2000 protocol.
2108
2109 See <http://v9fs.sf.net> for more information.
2110
2111 If unsure, say N.
2112
ea0985ad 2113endif # NETWORK_FILESYSTEMS
1da177e4 2114
9361401e 2115if BLOCK
1da177e4
LT
2116menu "Partition Types"
2117
2118source "fs/partitions/Kconfig"
2119
2120endmenu
9361401e 2121endif
1da177e4
LT
2122
2123source "fs/nls/Kconfig"
e7fd4179 2124source "fs/dlm/Kconfig"
1da177e4
LT
2125
2126endmenu
2127