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 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" 255 depends on JBD2 && DEBUG_FS 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 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". 268 269config FS_MBCACHE 270# Meta block cache for Extended Attributes (ext2/ext3/ext4) 271 tristate 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 275 276config REISERFS_FS 277 tristate "Reiserfs support" 278 help 279 Stores not just filenames but the files themselves in a balanced 280 tree. Uses journalling. 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" 318 depends on REISERFS_FS && PROC_FS 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 340 select FS_POSIX_ACL 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 374 select FS_POSIX_ACL 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 419 default n 420 421source "fs/xfs/Kconfig" 422source "fs/gfs2/Kconfig" 423 424config OCFS2_FS 425 tristate "OCFS2 file system support" 426 depends on NET && SYSFS 427 select CONFIGFS_FS 428 select JBD 429 select CRC32 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/ 442 443 For more information on OCFS2, see the file 444 <file:Documentation/filesystems/ocfs2.txt>. 445 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 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 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 498endif 499 500config INOTIFY 501 bool "Inotify file change notification support" 502 default y 503 ---help--- 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 508 notification. 509 510 For more information, see <file:Documentation/filesystems/inotify.txt> 511 512 If unsure, say Y. 513 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. 523 524 For more information, see <file:Documentation/filesystems/inotify.txt> 525 526 If unsure, say Y. 527 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 535 shutdown. 536 For further details, read the Quota mini-HOWTO, available from 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 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 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 572 need this functionality say Y here. 573 574config QUOTACTL 575 bool 576 depends on XFS_QUOTA || QUOTA 577 default y 578 579config DNOTIFY 580 bool "Dnotify support" 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. 587 588 If unsure, say Y. 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 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/> 642 643 See <file:Documentation/filesystems/fuse.txt> for more information. 644 See <file:Documentation/Changes> for needed library/utility version. 645 646 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 649config GENERIC_ACL 650 bool 651 select FS_POSIX_ACL 652 653if BLOCK 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 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 715endif 716 717if BLOCK 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"). 745 746 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 898endif 899 900menu "Pseudo filesystems" 901 902config PROC_FS 903 bool "/proc file system support" if EMBEDDED 904 default y 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 936config PROC_VMCORE 937 bool "/proc/vmcore support (EXPERIMENTAL)" 938 depends on PROC_FS && EXPERIMENTAL && CRASH_DUMP 939 default y 940 help 941 Exports the dump image of crashed kernel in ELF format. 942 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 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 977 delegating policy decisions, like persistently naming devices. 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 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 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 1011config HUGETLBFS 1012 bool "HugeTLB file system support" 1013 depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || BROKEN 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. 1020 1021config HUGETLB_PAGE 1022 def_bool HUGETLBFS 1023 1024config CONFIGFS_FS 1025 tristate "Userspace-driven configuration filesystem" 1026 depends on SYSFS 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 1036endmenu 1037 1038menu "Miscellaneous filesystems" 1039 1040config ADFS_FS 1041 tristate "ADFS file system support (EXPERIMENTAL)" 1042 depends on BLOCK && EXPERIMENTAL 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)" 1070 depends on BLOCK && EXPERIMENTAL 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 1090config ECRYPT_FS 1091 tristate "eCrypt filesystem layer support (EXPERIMENTAL)" 1092 depends on EXPERIMENTAL && KEYS && CRYPTO && NET 1093 help 1094 Encrypted filesystem that operates on the VFS layer. See 1095 <file:Documentation/filesystems/ecryptfs.txt> to learn more about 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 1102config HFS_FS 1103 tristate "Apple Macintosh file system support (EXPERIMENTAL)" 1104 depends on BLOCK && EXPERIMENTAL 1105 select NLS 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. 1109 Please read <file:Documentation/filesystems/hfs.txt> to learn about 1110 the available mount options. 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" 1117 depends on BLOCK 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)" 1131 depends on BLOCK && EXPERIMENTAL 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 1136 on files and directories, and database-like indices on selected 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 1139 extremely large volumes and files. 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)" 1158 depends on BLOCK && EXPERIMENTAL 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)" 1180 depends on BLOCK && EXPERIMENTAL 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 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 1223config JFFS2_FS_WRITEBUFFER 1224 bool "JFFS2 write-buffering support" 1225 depends on JFFS2_FS 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 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 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)" 1259 depends on JFFS2_FS && EXPERIMENTAL 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 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 1302 compressors can mean you cannot read existing file systems, 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 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. 1319 1320 Say 'Y' if unsure. 1321 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 1327 default n 1328 help 1329 minilzo-based compression. Generally works better than Zlib. 1330 1331 This feature was added in July, 2007. Say 'N' if you need 1332 compatibility with older bootloaders or kernels. 1333 1334config JFFS2_RTIME 1335 bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS 1336 depends on JFFS2_FS 1337 default y 1338 help 1339 Rtime does manage to recompress already-compressed data. Say 'Y' if unsure. 1340 1341config JFFS2_RUBIN 1342 bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS 1343 depends on JFFS2_FS 1344 default n 1345 help 1346 RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure. 1347 1348choice 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. 1355 1356config JFFS2_CMODE_NONE 1357 bool "no compression" 1358 help 1359 Uses no compression. 1360 1361config JFFS2_CMODE_PRIORITY 1362 bool "priority" 1363 help 1364 Tries the compressors in a predefined order and chooses the first 1365 successful one. 1366 1367config JFFS2_CMODE_SIZE 1368 bool "size (EXPERIMENTAL)" 1369 help 1370 Tries all compressors and chooses the one which has the smallest 1371 result. 1372 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 1380endchoice 1381 1382config CRAMFS 1383 tristate "Compressed ROM file system support (cramfs)" 1384 depends on BLOCK 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)" 1404 depends on BLOCK 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" 1422 depends on BLOCK 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)" 1439 depends on BLOCK 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" 1467 depends on BLOCK 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 1476 to run these binaries, you will want to install linux-abi which is 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)" 1506 depends on BLOCK 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)" 1539 depends on UFS_FS && EXPERIMENTAL 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 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 1552endmenu 1553 1554menuconfig NETWORK_FILESYSTEMS 1555 bool "Network File Systems" 1556 default y 1557 depends on NET 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 1568 1569config NFS_FS 1570 tristate "NFS file system support" 1571 depends on INET 1572 select LOCKD 1573 select SUNRPC 1574 select NFS_ACL_SUPPORT if NFS_V3_ACL 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 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 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 1641 bool "Allow direct I/O on NFS files" 1642 depends on NFS_FS 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 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 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 1699config NFSD_V2_ACL 1700 bool 1701 depends on NFSD 1702 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 1710config NFSD_V3_ACL 1711 bool "Provide server support for the NFSv3 ACL protocol extension" 1712 depends on NFSD_V3 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 1719config NFSD_V4 1720 bool "Provide NFSv4 server support (EXPERIMENTAL)" 1721 depends on NFSD && NFSD_V3 && EXPERIMENTAL 1722 select RPCSEC_GSS_KRB5 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 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 1772config SUNRPC 1773 tristate 1774 1775config SUNRPC_GSS 1776 tristate 1777 1778config SUNRPC_XPRT_RDMA 1779 tristate "RDMA transport for sunrpc (EXPERIMENTAL)" 1780 depends on SUNRPC && INFINIBAND && EXPERIMENTAL 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 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 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 1805 select CRYPTO_CBC 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 1823 select CRYPTO_CAST5 1824 select CRYPTO_CBC 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 1901 server support for Linux and many other operating systems). Limited 1902 support for OS/2 and Windows ME and similar servers is provided as 1903 well. 1904 1905 The cifs module provides an advanced network file system 1906 client for mounting to CIFS compliant servers. It includes 1907 support for DFS (hierarchical name space), secure per-user 1908 session establishment via Kerberos or NTLM or NTLMv2, 1909 safe distributed caching (oplock), optional packet 1910 signing, Unicode and other internationalization improvements. 1911 If you need to mount to Samba or Windows from this machine, say Y. 1912 1913config CIFS_STATS 1914 bool "CIFS statistics" 1915 depends on CIFS 1916 help 1917 Enabling this option will cause statistics for each server share 1918 mounted by the cifs client to be displayed in /proc/fs/cifs/Stats 1919 1920config CIFS_STATS2 1921 bool "Extended statistics" 1922 depends on CIFS_STATS 1923 help 1924 Enabling this option will allow more detailed statistics on SMB 1925 request timing to be displayed in /proc/fs/cifs/DebugData and also 1926 allow optional logging of slow responses to dmesg (depending on the 1927 value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details). 1928 These additional statistics may have a minor effect on performance 1929 and memory utilization. 1930 1931 Unless you are a developer or are doing network performance analysis 1932 or tuning, say N. 1933 1934config CIFS_WEAK_PW_HASH 1935 bool "Support legacy servers which use weaker LANMAN security" 1936 depends on CIFS 1937 help 1938 Modern CIFS servers including Samba and most Windows versions 1939 (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos) 1940 security mechanisms. These hash the password more securely 1941 than the mechanisms used in the older LANMAN version of the 1942 SMB protocol but LANMAN based authentication is needed to 1943 establish sessions with some old SMB servers. 1944 1945 Enabling this option allows the cifs module to mount to older 1946 LANMAN based servers such as OS/2 and Windows 95, but such 1947 mounts may be less secure than mounts using NTLM or more recent 1948 security mechanisms if you are on a public network. Unless you 1949 have a need to access old SMB servers (and are on a private 1950 network) you probably want to say N. Even if this support 1951 is enabled in the kernel build, LANMAN authentication will not be 1952 used automatically. At runtime LANMAN mounts are disabled but 1953 can be set to required (or optional) either in 1954 /proc/fs/cifs (see fs/cifs/README for more detail) or via an 1955 option on the mount command. This support is disabled by 1956 default in order to reduce the possibility of a downgrade 1957 attack. 1958 1959 If unsure, say N. 1960 1961config CIFS_XATTR 1962 bool "CIFS extended attributes" 1963 depends on CIFS 1964 help 1965 Extended attributes are name:value pairs associated with inodes by 1966 the kernel or by users (see the attr(5) manual page, or visit 1967 <http://acl.bestbits.at/> for details). CIFS maps the name of 1968 extended attributes beginning with the user namespace prefix 1969 to SMB/CIFS EAs. EAs are stored on Windows servers without the 1970 user namespace prefix, but their names are seen by Linux cifs clients 1971 prefaced by the user namespace prefix. The system namespace 1972 (used by some filesystems to store ACLs) is not supported at 1973 this time. 1974 1975 If unsure, say N. 1976 1977config CIFS_POSIX 1978 bool "CIFS POSIX Extensions" 1979 depends on CIFS_XATTR 1980 help 1981 Enabling this option will cause the cifs client to attempt to 1982 negotiate a newer dialect with servers, such as Samba 3.0.5 1983 or later, that optionally can handle more POSIX like (rather 1984 than Windows like) file behavior. It also enables 1985 support for POSIX ACLs (getfacl and setfacl) to servers 1986 (such as Samba 3.10 and later) which can negotiate 1987 CIFS POSIX ACL support. If unsure, say N. 1988 1989config CIFS_DEBUG2 1990 bool "Enable additional CIFS debugging routines" 1991 depends on CIFS 1992 help 1993 Enabling this option adds a few more debugging routines 1994 to the cifs code which slightly increases the size of 1995 the cifs module and can cause additional logging of debug 1996 messages in some error paths, slowing performance. This 1997 option can be turned off unless you are debugging 1998 cifs problems. If unsure, say N. 1999 2000config CIFS_EXPERIMENTAL 2001 bool "CIFS Experimental Features (EXPERIMENTAL)" 2002 depends on CIFS && EXPERIMENTAL 2003 help 2004 Enables cifs features under testing. These features are 2005 experimental and currently include DFS support and directory 2006 change notification ie fcntl(F_DNOTIFY), as well as the upcall 2007 mechanism which will be used for Kerberos session negotiation 2008 and uid remapping. Some of these features also may depend on 2009 setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental 2010 (which is disabled by default). See the file fs/cifs/README 2011 for more details. If unsure, say N. 2012 2013config CIFS_UPCALL 2014 bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)" 2015 depends on CIFS_EXPERIMENTAL 2016 depends on KEYS 2017 help 2018 Enables an upcall mechanism for CIFS which accesses 2019 userspace helper utilities to provide SPNEGO packaged (RFC 4178) 2020 Kerberos tickets which are needed to mount to certain secure servers 2021 (for which more secure Kerberos authentication is required). If 2022 unsure, say N. 2023 2024config CIFS_DFS_UPCALL 2025 bool "DFS feature support (EXPERIMENTAL)" 2026 depends on CIFS_EXPERIMENTAL 2027 depends on KEYS 2028 help 2029 Enables an upcall mechanism for CIFS which contacts userspace 2030 helper utilities to provide server name resolution (host names to 2031 IP addresses) which is needed for implicit mounts of DFS junction 2032 points. If unsure, say N. 2033 2034config NCP_FS 2035 tristate "NCP file system support (to mount NetWare volumes)" 2036 depends on IPX!=n || INET 2037 help 2038 NCP (NetWare Core Protocol) is a protocol that runs over IPX and is 2039 used by Novell NetWare clients to talk to file servers. It is to 2040 IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you 2041 to mount NetWare file server volumes and to access them just like 2042 any other Unix directory. For details, please read the file 2043 <file:Documentation/filesystems/ncpfs.txt> in the kernel source and 2044 the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>. 2045 2046 You do not have to say Y here if you want your Linux box to act as a 2047 file *server* for Novell NetWare clients. 2048 2049 General information about how to connect Linux, Windows machines and 2050 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>. 2051 2052 To compile this as a module, choose M here: the module will be called 2053 ncpfs. Say N unless you are connected to a Novell network. 2054 2055source "fs/ncpfs/Kconfig" 2056 2057config CODA_FS 2058 tristate "Coda file system support (advanced network fs)" 2059 depends on INET 2060 help 2061 Coda is an advanced network file system, similar to NFS in that it 2062 enables you to mount file systems of a remote server and access them 2063 with regular Unix commands as if they were sitting on your hard 2064 disk. Coda has several advantages over NFS: support for 2065 disconnected operation (e.g. for laptops), read/write server 2066 replication, security model for authentication and encryption, 2067 persistent client caches and write back caching. 2068 2069 If you say Y here, your Linux box will be able to act as a Coda 2070 *client*. You will need user level code as well, both for the 2071 client and server. Servers are currently user level, i.e. they need 2072 no kernel support. Please read 2073 <file:Documentation/filesystems/coda.txt> and check out the Coda 2074 home page <http://www.coda.cs.cmu.edu/>. 2075 2076 To compile the coda client support as a module, choose M here: the 2077 module will be called coda. 2078 2079config CODA_FS_OLD_API 2080 bool "Use 96-bit Coda file identifiers" 2081 depends on CODA_FS 2082 help 2083 A new kernel-userspace API had to be introduced for Coda v6.0 2084 to support larger 128-bit file identifiers as needed by the 2085 new realms implementation. 2086 2087 However this new API is not backward compatible with older 2088 clients. If you really need to run the old Coda userspace 2089 cache manager then say Y. 2090 2091 For most cases you probably want to say N. 2092 2093config AFS_FS 2094 tristate "Andrew File System support (AFS) (EXPERIMENTAL)" 2095 depends on INET && EXPERIMENTAL 2096 select AF_RXRPC 2097 help 2098 If you say Y here, you will get an experimental Andrew File System 2099 driver. It currently only supports unsecured read-only AFS access. 2100 2101 See <file:Documentation/filesystems/afs.txt> for more information. 2102 2103 If unsure, say N. 2104 2105config AFS_DEBUG 2106 bool "AFS dynamic debugging" 2107 depends on AFS_FS 2108 help 2109 Say Y here to make runtime controllable debugging messages appear. 2110 2111 See <file:Documentation/filesystems/afs.txt> for more information. 2112 2113 If unsure, say N. 2114 2115config 9P_FS 2116 tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)" 2117 depends on INET && NET_9P && EXPERIMENTAL 2118 help 2119 If you say Y here, you will get experimental support for 2120 Plan 9 resource sharing via the 9P2000 protocol. 2121 2122 See <http://v9fs.sf.net> for more information. 2123 2124 If unsure, say N. 2125 2126endif # NETWORK_FILESYSTEMS 2127 2128if BLOCK 2129menu "Partition Types" 2130 2131source "fs/partitions/Kconfig" 2132 2133endmenu 2134endif 2135 2136source "fs/nls/Kconfig" 2137source "fs/dlm/Kconfig" 2138 2139endmenu 2140