1# 2# File system configuration 3# 4 5menu "File systems" 6 7if BLOCK 8 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 15 module will be called ext2. 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 32 select FS_POSIX_ACL 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 54config EXT2_FS_XIP 55 bool "Ext2 execute in place support" 56 depends on EXT2_FS && MMU 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 71config EXT3_FS 72 tristate "Ext3 journalling file system support" 73 select JBD 74 help 75 This is the journalling version of the Second extended file system 76 (often called ext3), the de facto standard Linux file system 77 (method to organize files on a storage device) for hard disks. 78 79 The journalling code included in this driver means you do not have 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 99 module will be called ext3. 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 117 select FS_POSIX_ACL 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 139config EXT4DEV_FS 140 tristate "Ext4dev/ext4 extended fs support development (EXPERIMENTAL)" 141 depends on EXPERIMENTAL 142 select JBD2 143 select CRC16 144 help 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. 148 149 Unlike the change from ext2 filesystem to ext3 filesystem, 150 the on-disk format of ext4dev is not the same as ext3 any more: 151 it is based on extent maps and it supports 48-bit physical block 152 numbers. These combined on-disk format changes will allow 153 ext4dev/ext4 to handle more than 16 TB filesystem volumes -- 154 a hard limit that ext3 cannot overcome without changing the 155 on-disk format. 156 157 Other than extent maps and 48-bit block numbers, ext4dev also is 158 likely to have other new features such as persistent preallocation, 159 high resolution time stamps, and larger file support etc. These 160 features will be added to ext4dev gradually. 161 162 To compile this file system support as a module, choose M here. The 163 module will be called ext4dev. 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 205config JBD 206 tristate 207 help 208 This is a generic journalling layer for block devices. It is 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. 212 213 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. 216 217 To compile this device as a module, choose M here: the module will be 218 called jbd. If you are compiling ext3 or OCFS2 into the kernel, 219 you cannot compile this code as a module. 220 221config JBD_DEBUG 222 bool "JBD (ext3) debugging support" 223 depends on JBD && DEBUG_FS 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 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". 236 237config JBD2 238 tristate 239 select CRC32 240 help 241 This is a generic journaling layer for block devices that support 242 both 32-bit and 64-bit block numbers. It is currently used by 243 the ext4dev/ext4 filesystem, but it could also be used to add 244 journal support to other file systems or block devices such 245 as RAID or LVM. 246 247 If you are using ext4dev/ext4, you need to say Y here. If you are not 248 using ext4dev/ext4 then you will probably want to say N. 249 250 To compile this device as a module, choose M here. The module will be 251 called jbd2. If you are compiling ext4dev/ext4 into the kernel, 252 you cannot compile this code as a module. 253 254config JBD2_DEBUG 255 bool "JBD2 (ext4dev/ext4) debugging support" 256 depends on JBD2 && DEBUG_FS 257 help 258 If you are using the ext4dev/ext4 journaled file system (or 259 potentially any other filesystem/device using JBD2), this option 260 allows you to enable debugging output while the system is running, 261 in order to help track down any problems you are having. 262 By default, the debugging output will be turned off. 263 264 If you select Y here, then you will be able to turn on debugging 265 with "echo N > /sys/kernel/debug/jbd2/jbd2-debug", where N is a 266 number between 1 and 5. The higher the number, the more debugging 267 output is generated. To turn debugging off again, do 268 "echo 0 > /sys/kernel/debug/jbd2/jbd2-debug". 269 270config FS_MBCACHE 271# Meta block cache for Extended Attributes (ext2/ext3/ext4) 272 tristate 273 depends on EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4DEV_FS_XATTR 274 default y if EXT2_FS=y || EXT3_FS=y || EXT4DEV_FS=y 275 default m if EXT2_FS=m || EXT3_FS=m || EXT4DEV_FS=m 276 277config REISERFS_FS 278 tristate "Reiserfs support" 279 help 280 Stores not just filenames but the files themselves in a balanced 281 tree. Uses journalling. 282 283 Balanced trees are more efficient than traditional file system 284 architectural foundations. 285 286 In general, ReiserFS is as fast as ext2, but is very efficient with 287 large directories and small files. Additional patches are needed 288 for NFS and quotas, please see <http://www.namesys.com/> for links. 289 290 It is more easily extended to have features currently found in 291 database and keyword search systems than block allocation based file 292 systems are. The next version will be so extended, and will support 293 plugins consistent with our motto ``It takes more than a license to 294 make source code open.'' 295 296 Read <http://www.namesys.com/> to learn more about reiserfs. 297 298 Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com. 299 300 If you like it, you can pay us to add new features to it that you 301 need, buy a support contract, or pay us to port it to another OS. 302 303config REISERFS_CHECK 304 bool "Enable reiserfs debug mode" 305 depends on REISERFS_FS 306 help 307 If you set this to Y, then ReiserFS will perform every check it can 308 possibly imagine of its internal consistency throughout its 309 operation. It will also go substantially slower. More than once we 310 have forgotten that this was on, and then gone despondent over the 311 latest benchmarks.:-) Use of this option allows our team to go all 312 out in checking for consistency when debugging without fear of its 313 effect on end users. If you are on the verge of sending in a bug 314 report, say Y and you might get a useful error message. Almost 315 everyone should say N. 316 317config REISERFS_PROC_INFO 318 bool "Stats in /proc/fs/reiserfs" 319 depends on REISERFS_FS && PROC_FS 320 help 321 Create under /proc/fs/reiserfs a hierarchy of files, displaying 322 various ReiserFS statistics and internal data at the expense of 323 making your kernel or module slightly larger (+8 KB). This also 324 increases the amount of kernel memory required for each mount. 325 Almost everyone but ReiserFS developers and people fine-tuning 326 reiserfs or tracing problems should say N. 327 328config REISERFS_FS_XATTR 329 bool "ReiserFS extended attributes" 330 depends on REISERFS_FS 331 help 332 Extended attributes are name:value pairs associated with inodes by 333 the kernel or by users (see the attr(5) manual page, or visit 334 <http://acl.bestbits.at/> for details). 335 336 If unsure, say N. 337 338config REISERFS_FS_POSIX_ACL 339 bool "ReiserFS POSIX Access Control Lists" 340 depends on REISERFS_FS_XATTR 341 select FS_POSIX_ACL 342 help 343 Posix Access Control Lists (ACLs) support permissions for users and 344 groups beyond the owner/group/world scheme. 345 346 To learn more about Access Control Lists, visit the Posix ACLs for 347 Linux website <http://acl.bestbits.at/>. 348 349 If you don't know what Access Control Lists are, say N 350 351config REISERFS_FS_SECURITY 352 bool "ReiserFS Security Labels" 353 depends on REISERFS_FS_XATTR 354 help 355 Security labels support alternative access control models 356 implemented by security modules like SELinux. This option 357 enables an extended attribute handler for file security 358 labels in the ReiserFS filesystem. 359 360 If you are not using a security module that requires using 361 extended attributes for file security labels, say N. 362 363config JFS_FS 364 tristate "JFS filesystem support" 365 select NLS 366 help 367 This is a port of IBM's Journaled Filesystem . More information is 368 available in the file <file:Documentation/filesystems/jfs.txt>. 369 370 If you do not intend to use the JFS filesystem, say N. 371 372config JFS_POSIX_ACL 373 bool "JFS POSIX Access Control Lists" 374 depends on JFS_FS 375 select FS_POSIX_ACL 376 help 377 Posix Access Control Lists (ACLs) support permissions for users and 378 groups beyond the owner/group/world scheme. 379 380 To learn more about Access Control Lists, visit the Posix ACLs for 381 Linux website <http://acl.bestbits.at/>. 382 383 If you don't know what Access Control Lists are, say N 384 385config JFS_SECURITY 386 bool "JFS Security Labels" 387 depends on JFS_FS 388 help 389 Security labels support alternative access control models 390 implemented by security modules like SELinux. This option 391 enables an extended attribute handler for file security 392 labels in the jfs filesystem. 393 394 If you are not using a security module that requires using 395 extended attributes for file security labels, say N. 396 397config JFS_DEBUG 398 bool "JFS debugging" 399 depends on JFS_FS 400 help 401 If you are experiencing any problems with the JFS filesystem, say 402 Y here. This will result in additional debugging messages to be 403 written to the system log. Under normal circumstances, this 404 results in very little overhead. 405 406config JFS_STATISTICS 407 bool "JFS statistics" 408 depends on JFS_FS 409 help 410 Enabling this option will cause statistics from the JFS file system 411 to be made available to the user in the /proc/fs/jfs/ directory. 412 413config FS_POSIX_ACL 414# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs) 415# 416# NOTE: you can implement Posix ACLs without these helpers (XFS does). 417# Never use this symbol for ifdefs. 418# 419 bool 420 default n 421 422source "fs/xfs/Kconfig" 423source "fs/gfs2/Kconfig" 424 425config OCFS2_FS 426 tristate "OCFS2 file system support" 427 depends on NET && SYSFS 428 select CONFIGFS_FS 429 select JBD 430 select CRC32 431 help 432 OCFS2 is a general purpose extent based shared disk cluster file 433 system with many similarities to ext3. It supports 64 bit inode 434 numbers, and has automatically extending metadata groups which may 435 also make it attractive for non-clustered use. 436 437 You'll want to install the ocfs2-tools package in order to at least 438 get "mount.ocfs2". 439 440 Project web page: http://oss.oracle.com/projects/ocfs2 441 Tools web page: http://oss.oracle.com/projects/ocfs2-tools 442 OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/ 443 444 For more information on OCFS2, see the file 445 <file:Documentation/filesystems/ocfs2.txt>. 446 447config OCFS2_DEBUG_MASKLOG 448 bool "OCFS2 logging support" 449 depends on OCFS2_FS 450 default y 451 help 452 The ocfs2 filesystem has an extensive logging system. The system 453 allows selection of events to log via files in /sys/o2cb/logmask/. 454 This option will enlarge your kernel, but it allows debugging of 455 ocfs2 filesystem issues. 456 457config OCFS2_DEBUG_FS 458 bool "OCFS2 expensive checks" 459 depends on OCFS2_FS 460 default n 461 help 462 This option will enable expensive consistency checks. Enable 463 this option for debugging only as it is likely to decrease 464 performance of the filesystem. 465 466config MINIX_FS 467 tristate "Minix fs support" 468 help 469 Minix is a simple operating system used in many classes about OS's. 470 The minix file system (method to organize files on a hard disk 471 partition or a floppy disk) was the original file system for Linux, 472 but has been superseded by the second extended file system ext2fs. 473 You don't want to use the minix file system on your hard disk 474 because of certain built-in restrictions, but it is sometimes found 475 on older Linux floppy disks. This option will enlarge your kernel 476 by about 28 KB. If unsure, say N. 477 478 To compile this file system support as a module, choose M here: the 479 module will be called minix. Note that the file system of your root 480 partition (the one containing the directory /) cannot be compiled as 481 a module. 482 483config ROMFS_FS 484 tristate "ROM file system support" 485 ---help--- 486 This is a very small read-only file system mainly intended for 487 initial ram disks of installation disks, but it could be used for 488 other read-only media as well. Read 489 <file:Documentation/filesystems/romfs.txt> for details. 490 491 To compile this file system support as a module, choose M here: the 492 module will be called romfs. Note that the file system of your 493 root partition (the one containing the directory /) cannot be a 494 module. 495 496 If you don't know whether you need it, then you don't need it: 497 answer N. 498 499endif 500 501config INOTIFY 502 bool "Inotify file change notification support" 503 default y 504 ---help--- 505 Say Y here to enable inotify support. Inotify is a file change 506 notification system and a replacement for dnotify. Inotify fixes 507 numerous shortcomings in dnotify and introduces several new features 508 including multiple file events, one-shot support, and unmount 509 notification. 510 511 For more information, see <file:Documentation/filesystems/inotify.txt> 512 513 If unsure, say Y. 514 515config INOTIFY_USER 516 bool "Inotify support for userspace" 517 depends on INOTIFY 518 default y 519 ---help--- 520 Say Y here to enable inotify support for userspace, including the 521 associated system calls. Inotify allows monitoring of both files and 522 directories via a single open fd. Events are read from the file 523 descriptor, which is also select()- and poll()-able. 524 525 For more information, see <file:Documentation/filesystems/inotify.txt> 526 527 If unsure, say Y. 528 529config QUOTA 530 bool "Quota support" 531 help 532 If you say Y here, you will be able to set per user limits for disk 533 usage (also called disk quotas). Currently, it works for the 534 ext2, ext3, and reiserfs file system. ext3 also supports journalled 535 quotas for which you don't need to run quotacheck(8) after an unclean 536 shutdown. 537 For further details, read the Quota mini-HOWTO, available from 538 <http://www.tldp.org/docs.html#howto>, or the documentation provided 539 with the quota tools. Probably the quota support is only useful for 540 multi user systems. If unsure, say N. 541 542config QUOTA_NETLINK_INTERFACE 543 bool "Report quota messages through netlink interface" 544 depends on QUOTA && NET 545 help 546 If you say Y here, quota warnings (about exceeding softlimit, reaching 547 hardlimit, etc.) will be reported through netlink interface. If unsure, 548 say Y. 549 550config PRINT_QUOTA_WARNING 551 bool "Print quota warnings to console (OBSOLETE)" 552 depends on QUOTA 553 default y 554 help 555 If you say Y here, quota warnings (about exceeding softlimit, reaching 556 hardlimit, etc.) will be printed to the process' controlling terminal. 557 Note that this behavior is currently deprecated and may go away in 558 future. Please use notification via netlink socket instead. 559 560config QFMT_V1 561 tristate "Old quota format support" 562 depends on QUOTA 563 help 564 This quota format was (is) used by kernels earlier than 2.4.22. If 565 you have quota working and you don't want to convert to new quota 566 format say Y here. 567 568config QFMT_V2 569 tristate "Quota format v2 support" 570 depends on QUOTA 571 help 572 This quota format allows using quotas with 32-bit UIDs/GIDs. If you 573 need this functionality say Y here. 574 575config QUOTACTL 576 bool 577 depends on XFS_QUOTA || QUOTA 578 default y 579 580config DNOTIFY 581 bool "Dnotify support" 582 default y 583 help 584 Dnotify is a directory-based per-fd file change notification system 585 that uses signals to communicate events to user-space. There exist 586 superior alternatives, but some applications may still rely on 587 dnotify. 588 589 If unsure, say Y. 590 591config AUTOFS_FS 592 tristate "Kernel automounter support" 593 help 594 The automounter is a tool to automatically mount remote file systems 595 on demand. This implementation is partially kernel-based to reduce 596 overhead in the already-mounted case; this is unlike the BSD 597 automounter (amd), which is a pure user space daemon. 598 599 To use the automounter you need the user-space tools from the autofs 600 package; you can find the location in <file:Documentation/Changes>. 601 You also want to answer Y to "NFS file system support", below. 602 603 If you want to use the newer version of the automounter with more 604 features, say N here and say Y to "Kernel automounter v4 support", 605 below. 606 607 To compile this support as a module, choose M here: the module will be 608 called autofs. 609 610 If you are not a part of a fairly large, distributed network, you 611 probably do not need an automounter, and can say N here. 612 613config AUTOFS4_FS 614 tristate "Kernel automounter version 4 support (also supports v3)" 615 help 616 The automounter is a tool to automatically mount remote file systems 617 on demand. This implementation is partially kernel-based to reduce 618 overhead in the already-mounted case; this is unlike the BSD 619 automounter (amd), which is a pure user space daemon. 620 621 To use the automounter you need the user-space tools from 622 <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also 623 want to answer Y to "NFS file system support", below. 624 625 To compile this support as a module, choose M here: the module will be 626 called autofs4. You will need to add "alias autofs autofs4" to your 627 modules configuration file. 628 629 If you are not a part of a fairly large, distributed network or 630 don't have a laptop which needs to dynamically reconfigure to the 631 local network, you probably do not need an automounter, and can say 632 N here. 633 634config FUSE_FS 635 tristate "Filesystem in Userspace support" 636 help 637 With FUSE it is possible to implement a fully functional filesystem 638 in a userspace program. 639 640 There's also companion library: libfuse. This library along with 641 utilities is available from the FUSE homepage: 642 <http://fuse.sourceforge.net/> 643 644 See <file:Documentation/filesystems/fuse.txt> for more information. 645 See <file:Documentation/Changes> for needed library/utility version. 646 647 If you want to develop a userspace FS, or if you want to use 648 a filesystem based on FUSE, answer Y or M. 649 650config GENERIC_ACL 651 bool 652 select FS_POSIX_ACL 653 654if BLOCK 655menu "CD-ROM/DVD Filesystems" 656 657config ISO9660_FS 658 tristate "ISO 9660 CDROM file system support" 659 help 660 This is the standard file system used on CD-ROMs. It was previously 661 known as "High Sierra File System" and is called "hsfs" on other 662 Unix systems. The so-called Rock-Ridge extensions which allow for 663 long Unix filenames and symbolic links are also supported by this 664 driver. If you have a CD-ROM drive and want to do more with it than 665 just listen to audio CDs and watch its LEDs, say Y (and read 666 <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO, 667 available from <http://www.tldp.org/docs.html#howto>), thereby 668 enlarging your kernel by about 27 KB; otherwise say N. 669 670 To compile this file system support as a module, choose M here: the 671 module will be called isofs. 672 673config JOLIET 674 bool "Microsoft Joliet CDROM extensions" 675 depends on ISO9660_FS 676 select NLS 677 help 678 Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system 679 which allows for long filenames in unicode format (unicode is the 680 new 16 bit character code, successor to ASCII, which encodes the 681 characters of almost all languages of the world; see 682 <http://www.unicode.org/> for more information). Say Y here if you 683 want to be able to read Joliet CD-ROMs under Linux. 684 685config ZISOFS 686 bool "Transparent decompression extension" 687 depends on ISO9660_FS 688 select ZLIB_INFLATE 689 help 690 This is a Linux-specific extension to RockRidge which lets you store 691 data in compressed form on a CD-ROM and have it transparently 692 decompressed when the CD-ROM is accessed. See 693 <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools 694 necessary to create such a filesystem. Say Y here if you want to be 695 able to read such compressed CD-ROMs. 696 697config UDF_FS 698 tristate "UDF file system support" 699 help 700 This is the new file system used on some CD-ROMs and DVDs. Say Y if 701 you intend to mount DVD discs or CDRW's written in packet mode, or 702 if written to by other UDF utilities, such as DirectCD. 703 Please read <file:Documentation/filesystems/udf.txt>. 704 705 To compile this file system support as a module, choose M here: the 706 module will be called udf. 707 708 If unsure, say N. 709 710config UDF_NLS 711 bool 712 default y 713 depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y) 714 715endmenu 716endif 717 718if BLOCK 719menu "DOS/FAT/NT Filesystems" 720 721config FAT_FS 722 tristate 723 select NLS 724 help 725 If you want to use one of the FAT-based file systems (the MS-DOS and 726 VFAT (Windows 95) file systems), then you must say Y or M here 727 to include FAT support. You will then be able to mount partitions or 728 diskettes with FAT-based file systems and transparently access the 729 files on them, i.e. MSDOS files will look and behave just like all 730 other Unix files. 731 732 This FAT support is not a file system in itself, it only provides 733 the foundation for the other file systems. You will have to say Y or 734 M to at least one of "MSDOS fs support" or "VFAT fs support" in 735 order to make use of it. 736 737 Another way to read and write MSDOS floppies and hard drive 738 partitions from within Linux (but not transparently) is with the 739 mtools ("man mtools") program suite. You don't need to say Y here in 740 order to do that. 741 742 If you need to move large files on floppies between a DOS and a 743 Linux box, say Y here, mount the floppy under Linux with an MSDOS 744 file system and use GNU tar's M option. GNU tar is a program 745 available for Unix and DOS ("man tar" or "info tar"). 746 747 The FAT support will enlarge your kernel by about 37 KB. If unsure, 748 say Y. 749 750 To compile this as a module, choose M here: the module will be called 751 fat. Note that if you compile the FAT support as a module, you 752 cannot compile any of the FAT-based file systems into the kernel 753 -- they will have to be modules as well. 754 755config MSDOS_FS 756 tristate "MSDOS fs support" 757 select FAT_FS 758 help 759 This allows you to mount MSDOS partitions of your hard drive (unless 760 they are compressed; to access compressed MSDOS partitions under 761 Linux, you can either use the DOS emulator DOSEMU, described in the 762 DOSEMU-HOWTO, available from 763 <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in 764 <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you 765 intend to use dosemu with a non-compressed MSDOS partition, say Y 766 here) and MSDOS floppies. This means that file access becomes 767 transparent, i.e. the MSDOS files look and behave just like all 768 other Unix files. 769 770 If you have Windows 95 or Windows NT installed on your MSDOS 771 partitions, you should use the VFAT file system (say Y to "VFAT fs 772 support" below), or you will not be able to see the long filenames 773 generated by Windows 95 / Windows NT. 774 775 This option will enlarge your kernel by about 7 KB. If unsure, 776 answer Y. This will only work if you said Y to "DOS FAT fs support" 777 as well. To compile this as a module, choose M here: the module will 778 be called msdos. 779 780config VFAT_FS 781 tristate "VFAT (Windows-95) fs support" 782 select FAT_FS 783 help 784 This option provides support for normal Windows file systems with 785 long filenames. That includes non-compressed FAT-based file systems 786 used by Windows 95, Windows 98, Windows NT 4.0, and the Unix 787 programs from the mtools package. 788 789 The VFAT support enlarges your kernel by about 10 KB and it only 790 works if you said Y to the "DOS FAT fs support" above. Please read 791 the file <file:Documentation/filesystems/vfat.txt> for details. If 792 unsure, say Y. 793 794 To compile this as a module, choose M here: the module will be called 795 vfat. 796 797config FAT_DEFAULT_CODEPAGE 798 int "Default codepage for FAT" 799 depends on MSDOS_FS || VFAT_FS 800 default 437 801 help 802 This option should be set to the codepage of your FAT filesystems. 803 It can be overridden with the "codepage" mount option. 804 See <file:Documentation/filesystems/vfat.txt> for more information. 805 806config FAT_DEFAULT_IOCHARSET 807 string "Default iocharset for FAT" 808 depends on VFAT_FS 809 default "iso8859-1" 810 help 811 Set this to the default input/output character set you'd 812 like FAT to use. It should probably match the character set 813 that most of your FAT filesystems use, and can be overridden 814 with the "iocharset" mount option for FAT filesystems. 815 Note that "utf8" is not recommended for FAT filesystems. 816 If unsure, you shouldn't set "utf8" here. 817 See <file:Documentation/filesystems/vfat.txt> for more information. 818 819config NTFS_FS 820 tristate "NTFS file system support" 821 select NLS 822 help 823 NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003. 824 825 Saying Y or M here enables read support. There is partial, but 826 safe, write support available. For write support you must also 827 say Y to "NTFS write support" below. 828 829 There are also a number of user-space tools available, called 830 ntfsprogs. These include ntfsundelete and ntfsresize, that work 831 without NTFS support enabled in the kernel. 832 833 This is a rewrite from scratch of Linux NTFS support and replaced 834 the old NTFS code starting with Linux 2.5.11. A backport to 835 the Linux 2.4 kernel series is separately available as a patch 836 from the project web site. 837 838 For more information see <file:Documentation/filesystems/ntfs.txt> 839 and <http://linux-ntfs.sourceforge.net/>. 840 841 To compile this file system support as a module, choose M here: the 842 module will be called ntfs. 843 844 If you are not using Windows NT, 2000, XP or 2003 in addition to 845 Linux on your computer it is safe to say N. 846 847config NTFS_DEBUG 848 bool "NTFS debugging support" 849 depends on NTFS_FS 850 help 851 If you are experiencing any problems with the NTFS file system, say 852 Y here. This will result in additional consistency checks to be 853 performed by the driver as well as additional debugging messages to 854 be written to the system log. Note that debugging messages are 855 disabled by default. To enable them, supply the option debug_msgs=1 856 at the kernel command line when booting the kernel or as an option 857 to insmod when loading the ntfs module. Once the driver is active, 858 you can enable debugging messages by doing (as root): 859 echo 1 > /proc/sys/fs/ntfs-debug 860 Replacing the "1" with "0" would disable debug messages. 861 862 If you leave debugging messages disabled, this results in little 863 overhead, but enabling debug messages results in very significant 864 slowdown of the system. 865 866 When reporting bugs, please try to have available a full dump of 867 debugging messages while the misbehaviour was occurring. 868 869config NTFS_RW 870 bool "NTFS write support" 871 depends on NTFS_FS 872 help 873 This enables the partial, but safe, write support in the NTFS driver. 874 875 The only supported operation is overwriting existing files, without 876 changing the file length. No file or directory creation, deletion or 877 renaming is possible. Note only non-resident files can be written to 878 so you may find that some very small files (<500 bytes or so) cannot 879 be written to. 880 881 While we cannot guarantee that it will not damage any data, we have 882 so far not received a single report where the driver would have 883 damaged someones data so we assume it is perfectly safe to use. 884 885 Note: While write support is safe in this version (a rewrite from 886 scratch of the NTFS support), it should be noted that the old NTFS 887 write support, included in Linux 2.5.10 and before (since 1997), 888 is not safe. 889 890 This is currently useful with TopologiLinux. TopologiLinux is run 891 on top of any DOS/Microsoft Windows system without partitioning your 892 hard disk. Unlike other Linux distributions TopologiLinux does not 893 need its own partition. For more information see 894 <http://topologi-linux.sourceforge.net/> 895 896 It is perfectly safe to say N here. 897 898endmenu 899endif 900 901menu "Pseudo filesystems" 902 903config PROC_FS 904 bool "/proc file system support" if EMBEDDED 905 default y 906 help 907 This is a virtual file system providing information about the status 908 of the system. "Virtual" means that it doesn't take up any space on 909 your hard disk: the files are created on the fly by the kernel when 910 you try to access them. Also, you cannot read the files with older 911 version of the program less: you need to use more or cat. 912 913 It's totally cool; for example, "cat /proc/interrupts" gives 914 information about what the different IRQs are used for at the moment 915 (there is a small number of Interrupt ReQuest lines in your computer 916 that are used by the attached devices to gain the CPU's attention -- 917 often a source of trouble if two devices are mistakenly configured 918 to use the same IRQ). The program procinfo to display some 919 information about your system gathered from the /proc file system. 920 921 Before you can use the /proc file system, it has to be mounted, 922 meaning it has to be given a location in the directory hierarchy. 923 That location should be /proc. A command such as "mount -t proc proc 924 /proc" or the equivalent line in /etc/fstab does the job. 925 926 The /proc file system is explained in the file 927 <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage 928 ("man 5 proc"). 929 930 This option will enlarge your kernel by about 67 KB. Several 931 programs depend on this, so everyone should say Y here. 932 933config PROC_KCORE 934 bool "/proc/kcore support" if !ARM 935 depends on PROC_FS && MMU 936 937config PROC_VMCORE 938 bool "/proc/vmcore support (EXPERIMENTAL)" 939 depends on PROC_FS && EXPERIMENTAL && CRASH_DUMP 940 default y 941 help 942 Exports the dump image of crashed kernel in ELF format. 943 944config PROC_SYSCTL 945 bool "Sysctl support (/proc/sys)" if EMBEDDED 946 depends on PROC_FS 947 select SYSCTL 948 default y 949 ---help--- 950 The sysctl interface provides a means of dynamically changing 951 certain kernel parameters and variables on the fly without requiring 952 a recompile of the kernel or reboot of the system. The primary 953 interface is through /proc/sys. If you say Y here a tree of 954 modifiable sysctl entries will be generated beneath the 955 /proc/sys directory. They are explained in the files 956 in <file:Documentation/sysctl/>. Note that enabling this 957 option will enlarge the kernel by at least 8 KB. 958 959 As it is generally a good thing, you should say Y here unless 960 building a kernel for install/rescue disks or your system is very 961 limited in memory. 962 963config SYSFS 964 bool "sysfs file system support" if EMBEDDED 965 default y 966 help 967 The sysfs filesystem is a virtual filesystem that the kernel uses to 968 export internal kernel objects, their attributes, and their 969 relationships to one another. 970 971 Users can use sysfs to ascertain useful information about the running 972 kernel, such as the devices the kernel has discovered on each bus and 973 which driver each is bound to. sysfs can also be used to tune devices 974 and other kernel subsystems. 975 976 Some system agents rely on the information in sysfs to operate. 977 /sbin/hotplug uses device and object attributes in sysfs to assist in 978 delegating policy decisions, like persistently naming devices. 979 980 sysfs is currently used by the block subsystem to mount the root 981 partition. If sysfs is disabled you must specify the boot device on 982 the kernel boot command line via its major and minor numbers. For 983 example, "root=03:01" for /dev/hda1. 984 985 Designers of embedded systems may wish to say N here to conserve space. 986 987config TMPFS 988 bool "Virtual memory file system support (former shm fs)" 989 help 990 Tmpfs is a file system which keeps all files in virtual memory. 991 992 Everything in tmpfs is temporary in the sense that no files will be 993 created on your hard drive. The files live in memory and swap 994 space. If you unmount a tmpfs instance, everything stored therein is 995 lost. 996 997 See <file:Documentation/filesystems/tmpfs.txt> for details. 998 999config TMPFS_POSIX_ACL 1000 bool "Tmpfs POSIX Access Control Lists" 1001 depends on TMPFS 1002 select GENERIC_ACL 1003 help 1004 POSIX Access Control Lists (ACLs) support permissions for users and 1005 groups beyond the owner/group/world scheme. 1006 1007 To learn more about Access Control Lists, visit the POSIX ACLs for 1008 Linux website <http://acl.bestbits.at/>. 1009 1010 If you don't know what Access Control Lists are, say N. 1011 1012config HUGETLBFS 1013 bool "HugeTLB file system support" 1014 depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || BROKEN 1015 help 1016 hugetlbfs is a filesystem backing for HugeTLB pages, based on 1017 ramfs. For architectures that support it, say Y here and read 1018 <file:Documentation/vm/hugetlbpage.txt> for details. 1019 1020 If unsure, say N. 1021 1022config HUGETLB_PAGE 1023 def_bool HUGETLBFS 1024 1025config CONFIGFS_FS 1026 tristate "Userspace-driven configuration filesystem" 1027 depends on SYSFS 1028 help 1029 configfs is a ram-based filesystem that provides the converse 1030 of sysfs's functionality. Where sysfs is a filesystem-based 1031 view of kernel objects, configfs is a filesystem-based manager 1032 of kernel objects, or config_items. 1033 1034 Both sysfs and configfs can and should exist together on the 1035 same system. One is not a replacement for the other. 1036 1037endmenu 1038 1039menu "Miscellaneous filesystems" 1040 1041config ADFS_FS 1042 tristate "ADFS file system support (EXPERIMENTAL)" 1043 depends on BLOCK && EXPERIMENTAL 1044 help 1045 The Acorn Disc Filing System is the standard file system of the 1046 RiscOS operating system which runs on Acorn's ARM-based Risc PC 1047 systems and the Acorn Archimedes range of machines. If you say Y 1048 here, Linux will be able to read from ADFS partitions on hard drives 1049 and from ADFS-formatted floppy discs. If you also want to be able to 1050 write to those devices, say Y to "ADFS write support" below. 1051 1052 The ADFS partition should be the first partition (i.e., 1053 /dev/[hs]d?1) on each of your drives. Please read the file 1054 <file:Documentation/filesystems/adfs.txt> for further details. 1055 1056 To compile this code as a module, choose M here: the module will be 1057 called adfs. 1058 1059 If unsure, say N. 1060 1061config ADFS_FS_RW 1062 bool "ADFS write support (DANGEROUS)" 1063 depends on ADFS_FS 1064 help 1065 If you say Y here, you will be able to write to ADFS partitions on 1066 hard drives and ADFS-formatted floppy disks. This is experimental 1067 codes, so if you're unsure, say N. 1068 1069config AFFS_FS 1070 tristate "Amiga FFS file system support (EXPERIMENTAL)" 1071 depends on BLOCK && EXPERIMENTAL 1072 help 1073 The Fast File System (FFS) is the common file system used on hard 1074 disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y 1075 if you want to be able to read and write files from and to an Amiga 1076 FFS partition on your hard drive. Amiga floppies however cannot be 1077 read with this driver due to an incompatibility of the floppy 1078 controller used in an Amiga and the standard floppy controller in 1079 PCs and workstations. Read <file:Documentation/filesystems/affs.txt> 1080 and <file:fs/affs/Changes>. 1081 1082 With this driver you can also mount disk files used by Bernd 1083 Schmidt's Un*X Amiga Emulator 1084 (<http://www.freiburg.linux.de/~uae/>). 1085 If you want to do this, you will also need to say Y or M to "Loop 1086 device support", above. 1087 1088 To compile this file system support as a module, choose M here: the 1089 module will be called affs. If unsure, say N. 1090 1091config ECRYPT_FS 1092 tristate "eCrypt filesystem layer support (EXPERIMENTAL)" 1093 depends on EXPERIMENTAL && KEYS && CRYPTO && NET 1094 help 1095 Encrypted filesystem that operates on the VFS layer. See 1096 <file:Documentation/filesystems/ecryptfs.txt> to learn more about 1097 eCryptfs. Userspace components are required and can be 1098 obtained from <http://ecryptfs.sf.net>. 1099 1100 To compile this file system support as a module, choose M here: the 1101 module will be called ecryptfs. 1102 1103config HFS_FS 1104 tristate "Apple Macintosh file system support (EXPERIMENTAL)" 1105 depends on BLOCK && EXPERIMENTAL 1106 select NLS 1107 help 1108 If you say Y here, you will be able to mount Macintosh-formatted 1109 floppy disks and hard drive partitions with full read-write access. 1110 Please read <file:Documentation/filesystems/hfs.txt> to learn about 1111 the available mount options. 1112 1113 To compile this file system support as a module, choose M here: the 1114 module will be called hfs. 1115 1116config HFSPLUS_FS 1117 tristate "Apple Extended HFS file system support" 1118 depends on BLOCK 1119 select NLS 1120 select NLS_UTF8 1121 help 1122 If you say Y here, you will be able to mount extended format 1123 Macintosh-formatted hard drive partitions with full read-write access. 1124 1125 This file system is often called HFS+ and was introduced with 1126 MacOS 8. It includes all Mac specific filesystem data such as 1127 data forks and creator codes, but it also has several UNIX 1128 style features such as file ownership and permissions. 1129 1130config BEFS_FS 1131 tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)" 1132 depends on BLOCK && EXPERIMENTAL 1133 select NLS 1134 help 1135 The BeOS File System (BeFS) is the native file system of Be, Inc's 1136 BeOS. Notable features include support for arbitrary attributes 1137 on files and directories, and database-like indices on selected 1138 attributes. (Also note that this driver doesn't make those features 1139 available at this time). It is a 64 bit filesystem, so it supports 1140 extremely large volumes and files. 1141 1142 If you use this filesystem, you should also say Y to at least one 1143 of the NLS (native language support) options below. 1144 1145 If you don't know what this is about, say N. 1146 1147 To compile this as a module, choose M here: the module will be 1148 called befs. 1149 1150config BEFS_DEBUG 1151 bool "Debug BeFS" 1152 depends on BEFS_FS 1153 help 1154 If you say Y here, you can use the 'debug' mount option to enable 1155 debugging output from the driver. 1156 1157config BFS_FS 1158 tristate "BFS file system support (EXPERIMENTAL)" 1159 depends on BLOCK && EXPERIMENTAL 1160 help 1161 Boot File System (BFS) is a file system used under SCO UnixWare to 1162 allow the bootloader access to the kernel image and other important 1163 files during the boot process. It is usually mounted under /stand 1164 and corresponds to the slice marked as "STAND" in the UnixWare 1165 partition. You should say Y if you want to read or write the files 1166 on your /stand slice from within Linux. You then also need to say Y 1167 to "UnixWare slices support", below. More information about the BFS 1168 file system is contained in the file 1169 <file:Documentation/filesystems/bfs.txt>. 1170 1171 If you don't know what this is about, say N. 1172 1173 To compile this as a module, choose M here: the module will be called 1174 bfs. Note that the file system of your root partition (the one 1175 containing the directory /) cannot be compiled as a module. 1176 1177 1178 1179config EFS_FS 1180 tristate "EFS file system support (read only) (EXPERIMENTAL)" 1181 depends on BLOCK && EXPERIMENTAL 1182 help 1183 EFS is an older file system used for non-ISO9660 CD-ROMs and hard 1184 disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer 1185 uses the XFS file system for hard disk partitions however). 1186 1187 This implementation only offers read-only access. If you don't know 1188 what all this is about, it's safe to say N. For more information 1189 about EFS see its home page at <http://aeschi.ch.eu.org/efs/>. 1190 1191 To compile the EFS file system support as a module, choose M here: the 1192 module will be called efs. 1193 1194config JFFS2_FS 1195 tristate "Journalling Flash File System v2 (JFFS2) support" 1196 select CRC32 1197 depends on MTD 1198 help 1199 JFFS2 is the second generation of the Journalling Flash File System 1200 for use on diskless embedded devices. It provides improved wear 1201 levelling, compression and support for hard links. You cannot use 1202 this on normal block devices, only on 'MTD' devices. 1203 1204 Further information on the design and implementation of JFFS2 is 1205 available at <http://sources.redhat.com/jffs2/>. 1206 1207config JFFS2_FS_DEBUG 1208 int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)" 1209 depends on JFFS2_FS 1210 default "0" 1211 help 1212 This controls the amount of debugging messages produced by the JFFS2 1213 code. Set it to zero for use in production systems. For evaluation, 1214 testing and debugging, it's advisable to set it to one. This will 1215 enable a few assertions and will print debugging messages at the 1216 KERN_DEBUG loglevel, where they won't normally be visible. Level 2 1217 is unlikely to be useful - it enables extra debugging in certain 1218 areas which at one point needed debugging, but when the bugs were 1219 located and fixed, the detailed messages were relegated to level 2. 1220 1221 If reporting bugs, please try to have available a full dump of the 1222 messages at debug level 1 while the misbehaviour was occurring. 1223 1224config JFFS2_FS_WRITEBUFFER 1225 bool "JFFS2 write-buffering support" 1226 depends on JFFS2_FS 1227 default y 1228 help 1229 This enables the write-buffering support in JFFS2. 1230 1231 This functionality is required to support JFFS2 on the following 1232 types of flash devices: 1233 - NAND flash 1234 - NOR flash with transparent ECC 1235 - DataFlash 1236 1237config JFFS2_FS_WBUF_VERIFY 1238 bool "Verify JFFS2 write-buffer reads" 1239 depends on JFFS2_FS_WRITEBUFFER 1240 default n 1241 help 1242 This causes JFFS2 to read back every page written through the 1243 write-buffer, and check for errors. 1244 1245config JFFS2_SUMMARY 1246 bool "JFFS2 summary support (EXPERIMENTAL)" 1247 depends on JFFS2_FS && EXPERIMENTAL 1248 default n 1249 help 1250 This feature makes it possible to use summary information 1251 for faster filesystem mount. 1252 1253 The summary information can be inserted into a filesystem image 1254 by the utility 'sumtool'. 1255 1256 If unsure, say 'N'. 1257 1258config JFFS2_FS_XATTR 1259 bool "JFFS2 XATTR support (EXPERIMENTAL)" 1260 depends on JFFS2_FS && EXPERIMENTAL 1261 default n 1262 help 1263 Extended attributes are name:value pairs associated with inodes by 1264 the kernel or by users (see the attr(5) manual page, or visit 1265 <http://acl.bestbits.at/> for details). 1266 1267 If unsure, say N. 1268 1269config JFFS2_FS_POSIX_ACL 1270 bool "JFFS2 POSIX Access Control Lists" 1271 depends on JFFS2_FS_XATTR 1272 default y 1273 select FS_POSIX_ACL 1274 help 1275 Posix Access Control Lists (ACLs) support permissions for users and 1276 groups beyond the owner/group/world scheme. 1277 1278 To learn more about Access Control Lists, visit the Posix ACLs for 1279 Linux website <http://acl.bestbits.at/>. 1280 1281 If you don't know what Access Control Lists are, say N 1282 1283config JFFS2_FS_SECURITY 1284 bool "JFFS2 Security Labels" 1285 depends on JFFS2_FS_XATTR 1286 default y 1287 help 1288 Security labels support alternative access control models 1289 implemented by security modules like SELinux. This option 1290 enables an extended attribute handler for file security 1291 labels in the jffs2 filesystem. 1292 1293 If you are not using a security module that requires using 1294 extended attributes for file security labels, say N. 1295 1296config JFFS2_COMPRESSION_OPTIONS 1297 bool "Advanced compression options for JFFS2" 1298 depends on JFFS2_FS 1299 default n 1300 help 1301 Enabling this option allows you to explicitly choose which 1302 compression modules, if any, are enabled in JFFS2. Removing 1303 compressors can mean you cannot read existing file systems, 1304 and enabling experimental compressors can mean that you 1305 write a file system which cannot be read by a standard kernel. 1306 1307 If unsure, you should _definitely_ say 'N'. 1308 1309config JFFS2_ZLIB 1310 bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS 1311 select ZLIB_INFLATE 1312 select ZLIB_DEFLATE 1313 depends on JFFS2_FS 1314 default y 1315 help 1316 Zlib is designed to be a free, general-purpose, legally unencumbered, 1317 lossless data-compression library for use on virtually any computer 1318 hardware and operating system. See <http://www.gzip.org/zlib/> for 1319 further information. 1320 1321 Say 'Y' if unsure. 1322 1323config JFFS2_LZO 1324 bool "JFFS2 LZO compression support" if JFFS2_COMPRESSION_OPTIONS 1325 select LZO_COMPRESS 1326 select LZO_DECOMPRESS 1327 depends on JFFS2_FS 1328 default n 1329 help 1330 minilzo-based compression. Generally works better than Zlib. 1331 1332 This feature was added in July, 2007. Say 'N' if you need 1333 compatibility with older bootloaders or kernels. 1334 1335config JFFS2_RTIME 1336 bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS 1337 depends on JFFS2_FS 1338 default y 1339 help 1340 Rtime does manage to recompress already-compressed data. Say 'Y' if unsure. 1341 1342config JFFS2_RUBIN 1343 bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS 1344 depends on JFFS2_FS 1345 default n 1346 help 1347 RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure. 1348 1349choice 1350 prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS 1351 default JFFS2_CMODE_PRIORITY 1352 depends on JFFS2_FS 1353 help 1354 You can set here the default compression mode of JFFS2 from 1355 the available compression modes. Don't touch if unsure. 1356 1357config JFFS2_CMODE_NONE 1358 bool "no compression" 1359 help 1360 Uses no compression. 1361 1362config JFFS2_CMODE_PRIORITY 1363 bool "priority" 1364 help 1365 Tries the compressors in a predefined order and chooses the first 1366 successful one. 1367 1368config JFFS2_CMODE_SIZE 1369 bool "size (EXPERIMENTAL)" 1370 help 1371 Tries all compressors and chooses the one which has the smallest 1372 result. 1373 1374config JFFS2_CMODE_FAVOURLZO 1375 bool "Favour LZO" 1376 help 1377 Tries all compressors and chooses the one which has the smallest 1378 result but gives some preference to LZO (which has faster 1379 decompression) at the expense of size. 1380 1381endchoice 1382 1383config CRAMFS 1384 tristate "Compressed ROM file system support (cramfs)" 1385 depends on BLOCK 1386 select ZLIB_INFLATE 1387 help 1388 Saying Y here includes support for CramFs (Compressed ROM File 1389 System). CramFs is designed to be a simple, small, and compressed 1390 file system for ROM based embedded systems. CramFs is read-only, 1391 limited to 256MB file systems (with 16MB files), and doesn't support 1392 16/32 bits uid/gid, hard links and timestamps. 1393 1394 See <file:Documentation/filesystems/cramfs.txt> and 1395 <file:fs/cramfs/README> for further information. 1396 1397 To compile this as a module, choose M here: the module will be called 1398 cramfs. Note that the root file system (the one containing the 1399 directory /) cannot be compiled as a module. 1400 1401 If unsure, say N. 1402 1403config VXFS_FS 1404 tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)" 1405 depends on BLOCK 1406 help 1407 FreeVxFS is a file system driver that support the VERITAS VxFS(TM) 1408 file system format. VERITAS VxFS(TM) is the standard file system 1409 of SCO UnixWare (and possibly others) and optionally available 1410 for Sunsoft Solaris, HP-UX and many other operating systems. 1411 Currently only readonly access is supported. 1412 1413 NOTE: the file system type as used by mount(1), mount(2) and 1414 fstab(5) is 'vxfs' as it describes the file system format, not 1415 the actual driver. 1416 1417 To compile this as a module, choose M here: the module will be 1418 called freevxfs. If unsure, say N. 1419 1420 1421config HPFS_FS 1422 tristate "OS/2 HPFS file system support" 1423 depends on BLOCK 1424 help 1425 OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS 1426 is the file system used for organizing files on OS/2 hard disk 1427 partitions. Say Y if you want to be able to read files from and 1428 write files to an OS/2 HPFS partition on your hard drive. OS/2 1429 floppies however are in regular MSDOS format, so you don't need this 1430 option in order to be able to read them. Read 1431 <file:Documentation/filesystems/hpfs.txt>. 1432 1433 To compile this file system support as a module, choose M here: the 1434 module will be called hpfs. If unsure, say N. 1435 1436 1437 1438config QNX4FS_FS 1439 tristate "QNX4 file system support (read only)" 1440 depends on BLOCK 1441 help 1442 This is the file system used by the real-time operating systems 1443 QNX 4 and QNX 6 (the latter is also called QNX RTP). 1444 Further information is available at <http://www.qnx.com/>. 1445 Say Y if you intend to mount QNX hard disks or floppies. 1446 Unless you say Y to "QNX4FS read-write support" below, you will 1447 only be able to read these file systems. 1448 1449 To compile this file system support as a module, choose M here: the 1450 module will be called qnx4. 1451 1452 If you don't know whether you need it, then you don't need it: 1453 answer N. 1454 1455config QNX4FS_RW 1456 bool "QNX4FS write support (DANGEROUS)" 1457 depends on QNX4FS_FS && EXPERIMENTAL && BROKEN 1458 help 1459 Say Y if you want to test write support for QNX4 file systems. 1460 1461 It's currently broken, so for now: 1462 answer N. 1463 1464 1465 1466config SYSV_FS 1467 tristate "System V/Xenix/V7/Coherent file system support" 1468 depends on BLOCK 1469 help 1470 SCO, Xenix and Coherent are commercial Unix systems for Intel 1471 machines, and Version 7 was used on the DEC PDP-11. Saying Y 1472 here would allow you to read from their floppies and hard disk 1473 partitions. 1474 1475 If you have floppies or hard disk partitions like that, it is likely 1476 that they contain binaries from those other Unix systems; in order 1477 to run these binaries, you will want to install linux-abi which is 1478 a set of kernel modules that lets you run SCO, Xenix, Wyse, 1479 UnixWare, Dell Unix and System V programs under Linux. It is 1480 available via FTP (user: ftp) from 1481 <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>). 1482 NOTE: that will work only for binaries from Intel-based systems; 1483 PDP ones will have to wait until somebody ports Linux to -11 ;-) 1484 1485 If you only intend to mount files from some other Unix over the 1486 network using NFS, you don't need the System V file system support 1487 (but you need NFS file system support obviously). 1488 1489 Note that this option is generally not needed for floppies, since a 1490 good portable way to transport files and directories between unixes 1491 (and even other operating systems) is given by the tar program ("man 1492 tar" or preferably "info tar"). Note also that this option has 1493 nothing whatsoever to do with the option "System V IPC". Read about 1494 the System V file system in 1495 <file:Documentation/filesystems/sysv-fs.txt>. 1496 Saying Y here will enlarge your kernel by about 27 KB. 1497 1498 To compile this as a module, choose M here: the module will be called 1499 sysv. 1500 1501 If you haven't heard about all of this before, it's safe to say N. 1502 1503 1504 1505config UFS_FS 1506 tristate "UFS file system support (read only)" 1507 depends on BLOCK 1508 help 1509 BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD, 1510 OpenBSD and NeXTstep) use a file system called UFS. Some System V 1511 Unixes can create and mount hard disk partitions and diskettes using 1512 this file system as well. Saying Y here will allow you to read from 1513 these partitions; if you also want to write to them, say Y to the 1514 experimental "UFS file system write support", below. Please read the 1515 file <file:Documentation/filesystems/ufs.txt> for more information. 1516 1517 The recently released UFS2 variant (used in FreeBSD 5.x) is 1518 READ-ONLY supported. 1519 1520 If you only intend to mount files from some other Unix over the 1521 network using NFS, you don't need the UFS file system support (but 1522 you need NFS file system support obviously). 1523 1524 Note that this option is generally not needed for floppies, since a 1525 good portable way to transport files and directories between unixes 1526 (and even other operating systems) is given by the tar program ("man 1527 tar" or preferably "info tar"). 1528 1529 When accessing NeXTstep files, you may need to convert them from the 1530 NeXT character set to the Latin1 character set; use the program 1531 recode ("info recode") for this purpose. 1532 1533 To compile the UFS file system support as a module, choose M here: the 1534 module will be called ufs. 1535 1536 If you haven't heard about all of this before, it's safe to say N. 1537 1538config UFS_FS_WRITE 1539 bool "UFS file system write support (DANGEROUS)" 1540 depends on UFS_FS && EXPERIMENTAL 1541 help 1542 Say Y here if you want to try writing to UFS partitions. This is 1543 experimental, so you should back up your UFS partitions beforehand. 1544 1545config UFS_DEBUG 1546 bool "UFS debugging" 1547 depends on UFS_FS 1548 help 1549 If you are experiencing any problems with the UFS filesystem, say 1550 Y here. This will result in _many_ additional debugging messages to be 1551 written to the system log. 1552 1553endmenu 1554 1555menuconfig NETWORK_FILESYSTEMS 1556 bool "Network File Systems" 1557 default y 1558 depends on NET 1559 ---help--- 1560 Say Y here to get to see options for network filesystems and 1561 filesystem-related networking code, such as NFS daemon and 1562 RPCSEC security modules. 1563 This option alone does not add any kernel code. 1564 1565 If you say N, all options in this submenu will be skipped and 1566 disabled; if unsure, say Y here. 1567 1568if NETWORK_FILESYSTEMS 1569 1570config NFS_FS 1571 tristate "NFS file system support" 1572 depends on INET 1573 select LOCKD 1574 select SUNRPC 1575 select NFS_ACL_SUPPORT if NFS_V3_ACL 1576 help 1577 If you are connected to some other (usually local) Unix computer 1578 (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing 1579 on that computer (the NFS server) using the Network File Sharing 1580 protocol, say Y. "Mounting files" means that the client can access 1581 the files with usual UNIX commands as if they were sitting on the 1582 client's hard disk. For this to work, the server must run the 1583 programs nfsd and mountd (but does not need to have NFS file system 1584 support enabled in its kernel). NFS is explained in the Network 1585 Administrator's Guide, available from 1586 <http://www.tldp.org/docs.html#guide>, on its man page: "man 1587 nfs", and in the NFS-HOWTO. 1588 1589 A superior but less widely used alternative to NFS is provided by 1590 the Coda file system; see "Coda file system support" below. 1591 1592 If you say Y here, you should have said Y to TCP/IP networking also. 1593 This option would enlarge your kernel by about 27 KB. 1594 1595 To compile this file system support as a module, choose M here: the 1596 module will be called nfs. 1597 1598 If you are configuring a diskless machine which will mount its root 1599 file system over NFS at boot time, say Y here and to "Kernel 1600 level IP autoconfiguration" above and to "Root file system on NFS" 1601 below. You cannot compile this driver as a module in this case. 1602 There are two packages designed for booting diskless machines over 1603 the net: netboot, available from 1604 <http://ftp1.sourceforge.net/netboot/>, and Etherboot, 1605 available from <http://ftp1.sourceforge.net/etherboot/>. 1606 1607 If you don't know what all this is about, say N. 1608 1609config NFS_V3 1610 bool "Provide NFSv3 client support" 1611 depends on NFS_FS 1612 help 1613 Say Y here if you want your NFS client to be able to speak version 1614 3 of the NFS protocol. 1615 1616 If unsure, say Y. 1617 1618config NFS_V3_ACL 1619 bool "Provide client support for the NFSv3 ACL protocol extension" 1620 depends on NFS_V3 1621 help 1622 Implement the NFSv3 ACL protocol extension for manipulating POSIX 1623 Access Control Lists. The server should also be compiled with 1624 the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option. 1625 1626 If unsure, say N. 1627 1628config NFS_V4 1629 bool "Provide NFSv4 client support (EXPERIMENTAL)" 1630 depends on NFS_FS && EXPERIMENTAL 1631 select RPCSEC_GSS_KRB5 1632 help 1633 Say Y here if you want your NFS client to be able to speak the newer 1634 version 4 of the NFS protocol. 1635 1636 Note: Requires auxiliary userspace daemons which may be found on 1637 http://www.citi.umich.edu/projects/nfsv4/ 1638 1639 If unsure, say N. 1640 1641config NFS_DIRECTIO 1642 bool "Allow direct I/O on NFS files" 1643 depends on NFS_FS 1644 help 1645 This option enables applications to perform uncached I/O on files 1646 in NFS file systems using the O_DIRECT open() flag. When O_DIRECT 1647 is set for a file, its data is not cached in the system's page 1648 cache. Data is moved to and from user-level application buffers 1649 directly. Unlike local disk-based file systems, NFS O_DIRECT has 1650 no alignment restrictions. 1651 1652 Unless your program is designed to use O_DIRECT properly, you are 1653 much better off allowing the NFS client to manage data caching for 1654 you. Misusing O_DIRECT can cause poor server performance or network 1655 storms. This kernel build option defaults OFF to avoid exposing 1656 system administrators unwittingly to a potentially hazardous 1657 feature. 1658 1659 For more details on NFS O_DIRECT, see fs/nfs/direct.c. 1660 1661 If unsure, say N. This reduces the size of the NFS client, and 1662 causes open() to return EINVAL if a file residing in NFS is 1663 opened with the O_DIRECT flag. 1664 1665config NFSD 1666 tristate "NFS server support" 1667 depends on INET 1668 select LOCKD 1669 select SUNRPC 1670 select EXPORTFS 1671 select NFSD_V2_ACL if NFSD_V3_ACL 1672 select NFS_ACL_SUPPORT if NFSD_V2_ACL 1673 select NFSD_TCP if NFSD_V4 1674 select CRYPTO_MD5 if NFSD_V4 1675 select CRYPTO if NFSD_V4 1676 select FS_POSIX_ACL if NFSD_V4 1677 select PROC_FS if NFSD_V4 1678 select PROC_FS if SUNRPC_GSS 1679 help 1680 If you want your Linux box to act as an NFS *server*, so that other 1681 computers on your local network which support NFS can access certain 1682 directories on your box transparently, you have two options: you can 1683 use the self-contained user space program nfsd, in which case you 1684 should say N here, or you can say Y and use the kernel based NFS 1685 server. The advantage of the kernel based solution is that it is 1686 faster. 1687 1688 In either case, you will need support software; the respective 1689 locations are given in the file <file:Documentation/Changes> in the 1690 NFS section. 1691 1692 If you say Y here, you will get support for version 2 of the NFS 1693 protocol (NFSv2). If you also want NFSv3, say Y to the next question 1694 as well. 1695 1696 Please read the NFS-HOWTO, available from 1697 <http://www.tldp.org/docs.html#howto>. 1698 1699 To compile the NFS server support as a module, choose M here: the 1700 module will be called nfsd. If unsure, say N. 1701 1702config NFSD_V2_ACL 1703 bool 1704 depends on NFSD 1705 1706config NFSD_V3 1707 bool "Provide NFSv3 server support" 1708 depends on NFSD 1709 help 1710 If you would like to include the NFSv3 server as well as the NFSv2 1711 server, say Y here. If unsure, say Y. 1712 1713config NFSD_V3_ACL 1714 bool "Provide server support for the NFSv3 ACL protocol extension" 1715 depends on NFSD_V3 1716 help 1717 Implement the NFSv3 ACL protocol extension for manipulating POSIX 1718 Access Control Lists on exported file systems. NFS clients should 1719 be compiled with the NFSv3 ACL protocol extension; see the 1720 CONFIG_NFS_V3_ACL option. If unsure, say N. 1721 1722config NFSD_V4 1723 bool "Provide NFSv4 server support (EXPERIMENTAL)" 1724 depends on NFSD && NFSD_V3 && EXPERIMENTAL 1725 select RPCSEC_GSS_KRB5 1726 help 1727 If you would like to include the NFSv4 server as well as the NFSv2 1728 and NFSv3 servers, say Y here. This feature is experimental, and 1729 should only be used if you are interested in helping to test NFSv4. 1730 If unsure, say N. 1731 1732config NFSD_TCP 1733 bool "Provide NFS server over TCP support" 1734 depends on NFSD 1735 default y 1736 help 1737 If you want your NFS server to support TCP connections, say Y here. 1738 TCP connections usually perform better than the default UDP when 1739 the network is lossy or congested. If unsure, say Y. 1740 1741config ROOT_NFS 1742 bool "Root file system on NFS" 1743 depends on NFS_FS=y && IP_PNP 1744 help 1745 If you want your Linux box to mount its whole root file system (the 1746 one containing the directory /) from some other computer over the 1747 net via NFS (presumably because your box doesn't have a hard disk), 1748 say Y. Read <file:Documentation/nfsroot.txt> for details. It is 1749 likely that in this case, you also want to say Y to "Kernel level IP 1750 autoconfiguration" so that your box can discover its network address 1751 at boot time. 1752 1753 Most people say N here. 1754 1755config LOCKD 1756 tristate 1757 1758config LOCKD_V4 1759 bool 1760 depends on NFSD_V3 || NFS_V3 1761 default y 1762 1763config EXPORTFS 1764 tristate 1765 1766config NFS_ACL_SUPPORT 1767 tristate 1768 select FS_POSIX_ACL 1769 1770config NFS_COMMON 1771 bool 1772 depends on NFSD || NFS_FS 1773 default y 1774 1775config SUNRPC 1776 tristate 1777 1778config SUNRPC_GSS 1779 tristate 1780 1781config SUNRPC_XPRT_RDMA 1782 tristate "RDMA transport for sunrpc (EXPERIMENTAL)" 1783 depends on SUNRPC && INFINIBAND && EXPERIMENTAL 1784 default m 1785 help 1786 Adds a client RPC transport for supporting kernel NFS over RDMA 1787 mounts, including Infiniband and iWARP. Experimental. 1788 1789config SUNRPC_BIND34 1790 bool "Support for rpcbind versions 3 & 4 (EXPERIMENTAL)" 1791 depends on SUNRPC && EXPERIMENTAL 1792 help 1793 Provides kernel support for querying rpcbind servers via versions 3 1794 and 4 of the rpcbind protocol. The kernel automatically falls back 1795 to version 2 if a remote rpcbind service does not support versions 1796 3 or 4. 1797 1798 If unsure, say N to get traditional behavior (version 2 rpcbind 1799 requests only). 1800 1801config RPCSEC_GSS_KRB5 1802 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)" 1803 depends on SUNRPC && EXPERIMENTAL 1804 select SUNRPC_GSS 1805 select CRYPTO 1806 select CRYPTO_MD5 1807 select CRYPTO_DES 1808 select CRYPTO_CBC 1809 help 1810 Provides for secure RPC calls by means of a gss-api 1811 mechanism based on Kerberos V5. This is required for 1812 NFSv4. 1813 1814 Note: Requires an auxiliary userspace daemon which may be found on 1815 http://www.citi.umich.edu/projects/nfsv4/ 1816 1817 If unsure, say N. 1818 1819config RPCSEC_GSS_SPKM3 1820 tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)" 1821 depends on SUNRPC && EXPERIMENTAL 1822 select SUNRPC_GSS 1823 select CRYPTO 1824 select CRYPTO_MD5 1825 select CRYPTO_DES 1826 select CRYPTO_CAST5 1827 select CRYPTO_CBC 1828 help 1829 Provides for secure RPC calls by means of a gss-api 1830 mechanism based on the SPKM3 public-key mechanism. 1831 1832 Note: Requires an auxiliary userspace daemon which may be found on 1833 http://www.citi.umich.edu/projects/nfsv4/ 1834 1835 If unsure, say N. 1836 1837config SMB_FS 1838 tristate "SMB file system support (to mount Windows shares etc.)" 1839 depends on INET 1840 select NLS 1841 help 1842 SMB (Server Message Block) is the protocol Windows for Workgroups 1843 (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share 1844 files and printers over local networks. Saying Y here allows you to 1845 mount their file systems (often called "shares" in this context) and 1846 access them just like any other Unix directory. Currently, this 1847 works only if the Windows machines use TCP/IP as the underlying 1848 transport protocol, and not NetBEUI. For details, read 1849 <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO, 1850 available from <http://www.tldp.org/docs.html#howto>. 1851 1852 Note: if you just want your box to act as an SMB *server* and make 1853 files and printing services available to Windows clients (which need 1854 to have a TCP/IP stack), you don't need to say Y here; you can use 1855 the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>) 1856 for that. 1857 1858 General information about how to connect Linux, Windows machines and 1859 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>. 1860 1861 To compile the SMB support as a module, choose M here: the module will 1862 be called smbfs. Most people say N, however. 1863 1864config SMB_NLS_DEFAULT 1865 bool "Use a default NLS" 1866 depends on SMB_FS 1867 help 1868 Enabling this will make smbfs use nls translations by default. You 1869 need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls 1870 settings and you need to give the default nls for the SMB server as 1871 CONFIG_SMB_NLS_REMOTE. 1872 1873 The nls settings can be changed at mount time, if your smbmount 1874 supports that, using the codepage and iocharset parameters. 1875 1876 smbmount from samba 2.2.0 or later supports this. 1877 1878config SMB_NLS_REMOTE 1879 string "Default Remote NLS Option" 1880 depends on SMB_NLS_DEFAULT 1881 default "cp437" 1882 help 1883 This setting allows you to specify a default value for which 1884 codepage the server uses. If this field is left blank no 1885 translations will be done by default. The local codepage/charset 1886 default to CONFIG_NLS_DEFAULT. 1887 1888 The nls settings can be changed at mount time, if your smbmount 1889 supports that, using the codepage and iocharset parameters. 1890 1891 smbmount from samba 2.2.0 or later supports this. 1892 1893config CIFS 1894 tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)" 1895 depends on INET 1896 select NLS 1897 help 1898 This is the client VFS module for the Common Internet File System 1899 (CIFS) protocol which is the successor to the Server Message Block 1900 (SMB) protocol, the native file sharing mechanism for most early 1901 PC operating systems. The CIFS protocol is fully supported by 1902 file servers such as Windows 2000 (including Windows 2003, NT 4 1903 and Windows XP) as well by Samba (which provides excellent CIFS 1904 server support for Linux and many other operating systems). Limited 1905 support for OS/2 and Windows ME and similar servers is provided as 1906 well. 1907 1908 The cifs module provides an advanced network file system 1909 client for mounting to CIFS compliant servers. It includes 1910 support for DFS (hierarchical name space), secure per-user 1911 session establishment via Kerberos or NTLM or NTLMv2, 1912 safe distributed caching (oplock), optional packet 1913 signing, Unicode and other internationalization improvements. 1914 If you need to mount to Samba or Windows from this machine, say Y. 1915 1916config CIFS_STATS 1917 bool "CIFS statistics" 1918 depends on CIFS 1919 help 1920 Enabling this option will cause statistics for each server share 1921 mounted by the cifs client to be displayed in /proc/fs/cifs/Stats 1922 1923config CIFS_STATS2 1924 bool "Extended statistics" 1925 depends on CIFS_STATS 1926 help 1927 Enabling this option will allow more detailed statistics on SMB 1928 request timing to be displayed in /proc/fs/cifs/DebugData and also 1929 allow optional logging of slow responses to dmesg (depending on the 1930 value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details). 1931 These additional statistics may have a minor effect on performance 1932 and memory utilization. 1933 1934 Unless you are a developer or are doing network performance analysis 1935 or tuning, say N. 1936 1937config CIFS_WEAK_PW_HASH 1938 bool "Support legacy servers which use weaker LANMAN security" 1939 depends on CIFS 1940 help 1941 Modern CIFS servers including Samba and most Windows versions 1942 (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos) 1943 security mechanisms. These hash the password more securely 1944 than the mechanisms used in the older LANMAN version of the 1945 SMB protocol but LANMAN based authentication is needed to 1946 establish sessions with some old SMB servers. 1947 1948 Enabling this option allows the cifs module to mount to older 1949 LANMAN based servers such as OS/2 and Windows 95, but such 1950 mounts may be less secure than mounts using NTLM or more recent 1951 security mechanisms if you are on a public network. Unless you 1952 have a need to access old SMB servers (and are on a private 1953 network) you probably want to say N. Even if this support 1954 is enabled in the kernel build, LANMAN authentication will not be 1955 used automatically. At runtime LANMAN mounts are disabled but 1956 can be set to required (or optional) either in 1957 /proc/fs/cifs (see fs/cifs/README for more detail) or via an 1958 option on the mount command. This support is disabled by 1959 default in order to reduce the possibility of a downgrade 1960 attack. 1961 1962 If unsure, say N. 1963 1964config CIFS_XATTR 1965 bool "CIFS extended attributes" 1966 depends on CIFS 1967 help 1968 Extended attributes are name:value pairs associated with inodes by 1969 the kernel or by users (see the attr(5) manual page, or visit 1970 <http://acl.bestbits.at/> for details). CIFS maps the name of 1971 extended attributes beginning with the user namespace prefix 1972 to SMB/CIFS EAs. EAs are stored on Windows servers without the 1973 user namespace prefix, but their names are seen by Linux cifs clients 1974 prefaced by the user namespace prefix. The system namespace 1975 (used by some filesystems to store ACLs) is not supported at 1976 this time. 1977 1978 If unsure, say N. 1979 1980config CIFS_POSIX 1981 bool "CIFS POSIX Extensions" 1982 depends on CIFS_XATTR 1983 help 1984 Enabling this option will cause the cifs client to attempt to 1985 negotiate a newer dialect with servers, such as Samba 3.0.5 1986 or later, that optionally can handle more POSIX like (rather 1987 than Windows like) file behavior. It also enables 1988 support for POSIX ACLs (getfacl and setfacl) to servers 1989 (such as Samba 3.10 and later) which can negotiate 1990 CIFS POSIX ACL support. If unsure, say N. 1991 1992config CIFS_DEBUG2 1993 bool "Enable additional CIFS debugging routines" 1994 depends on CIFS 1995 help 1996 Enabling this option adds a few more debugging routines 1997 to the cifs code which slightly increases the size of 1998 the cifs module and can cause additional logging of debug 1999 messages in some error paths, slowing performance. This 2000 option can be turned off unless you are debugging 2001 cifs problems. If unsure, say N. 2002 2003config CIFS_EXPERIMENTAL 2004 bool "CIFS Experimental Features (EXPERIMENTAL)" 2005 depends on CIFS && EXPERIMENTAL 2006 help 2007 Enables cifs features under testing. These features are 2008 experimental and currently include DFS support and directory 2009 change notification ie fcntl(F_DNOTIFY), as well as the upcall 2010 mechanism which will be used for Kerberos session negotiation 2011 and uid remapping. Some of these features also may depend on 2012 setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental 2013 (which is disabled by default). See the file fs/cifs/README 2014 for more details. If unsure, say N. 2015 2016config CIFS_UPCALL 2017 bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)" 2018 depends on CIFS_EXPERIMENTAL 2019 depends on KEYS 2020 help 2021 Enables an upcall mechanism for CIFS which accesses 2022 userspace helper utilities to provide SPNEGO packaged (RFC 4178) 2023 Kerberos tickets which are needed to mount to certain secure servers 2024 (for which more secure Kerberos authentication is required). If 2025 unsure, say N. 2026 2027config CIFS_DFS_UPCALL 2028 bool "DFS feature support (EXPERIMENTAL)" 2029 depends on CIFS_EXPERIMENTAL 2030 depends on KEYS 2031 help 2032 Enables an upcall mechanism for CIFS which contacts userspace 2033 helper utilities to provide server name resolution (host names to 2034 IP addresses) which is needed for implicit mounts of DFS junction 2035 points. If unsure, say N. 2036 2037config NCP_FS 2038 tristate "NCP file system support (to mount NetWare volumes)" 2039 depends on IPX!=n || INET 2040 help 2041 NCP (NetWare Core Protocol) is a protocol that runs over IPX and is 2042 used by Novell NetWare clients to talk to file servers. It is to 2043 IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you 2044 to mount NetWare file server volumes and to access them just like 2045 any other Unix directory. For details, please read the file 2046 <file:Documentation/filesystems/ncpfs.txt> in the kernel source and 2047 the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>. 2048 2049 You do not have to say Y here if you want your Linux box to act as a 2050 file *server* for Novell NetWare clients. 2051 2052 General information about how to connect Linux, Windows machines and 2053 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>. 2054 2055 To compile this as a module, choose M here: the module will be called 2056 ncpfs. Say N unless you are connected to a Novell network. 2057 2058source "fs/ncpfs/Kconfig" 2059 2060config CODA_FS 2061 tristate "Coda file system support (advanced network fs)" 2062 depends on INET 2063 help 2064 Coda is an advanced network file system, similar to NFS in that it 2065 enables you to mount file systems of a remote server and access them 2066 with regular Unix commands as if they were sitting on your hard 2067 disk. Coda has several advantages over NFS: support for 2068 disconnected operation (e.g. for laptops), read/write server 2069 replication, security model for authentication and encryption, 2070 persistent client caches and write back caching. 2071 2072 If you say Y here, your Linux box will be able to act as a Coda 2073 *client*. You will need user level code as well, both for the 2074 client and server. Servers are currently user level, i.e. they need 2075 no kernel support. Please read 2076 <file:Documentation/filesystems/coda.txt> and check out the Coda 2077 home page <http://www.coda.cs.cmu.edu/>. 2078 2079 To compile the coda client support as a module, choose M here: the 2080 module will be called coda. 2081 2082config CODA_FS_OLD_API 2083 bool "Use 96-bit Coda file identifiers" 2084 depends on CODA_FS 2085 help 2086 A new kernel-userspace API had to be introduced for Coda v6.0 2087 to support larger 128-bit file identifiers as needed by the 2088 new realms implementation. 2089 2090 However this new API is not backward compatible with older 2091 clients. If you really need to run the old Coda userspace 2092 cache manager then say Y. 2093 2094 For most cases you probably want to say N. 2095 2096config AFS_FS 2097 tristate "Andrew File System support (AFS) (EXPERIMENTAL)" 2098 depends on INET && EXPERIMENTAL 2099 select AF_RXRPC 2100 help 2101 If you say Y here, you will get an experimental Andrew File System 2102 driver. It currently only supports unsecured read-only AFS access. 2103 2104 See <file:Documentation/filesystems/afs.txt> for more information. 2105 2106 If unsure, say N. 2107 2108config AFS_DEBUG 2109 bool "AFS dynamic debugging" 2110 depends on AFS_FS 2111 help 2112 Say Y here to make runtime controllable debugging messages appear. 2113 2114 See <file:Documentation/filesystems/afs.txt> for more information. 2115 2116 If unsure, say N. 2117 2118config 9P_FS 2119 tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)" 2120 depends on INET && NET_9P && EXPERIMENTAL 2121 help 2122 If you say Y here, you will get experimental support for 2123 Plan 9 resource sharing via the 9P2000 protocol. 2124 2125 See <http://v9fs.sf.net> for more information. 2126 2127 If unsure, say N. 2128 2129endif # NETWORK_FILESYSTEMS 2130 2131if BLOCK 2132menu "Partition Types" 2133 2134source "fs/partitions/Kconfig" 2135 2136endmenu 2137endif 2138 2139source "fs/nls/Kconfig" 2140source "fs/dlm/Kconfig" 2141 2142endmenu 2143