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/nfs4) 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_FS_O2CB 448 tristate "O2CB Kernelspace Clustering" 449 depends on OCFS2_FS 450 default y 451 help 452 OCFS2 includes a simple kernelspace clustering package, the OCFS2 453 Cluster Base. It only requires a very small userspace component 454 to configure it. This comes with the standard ocfs2-tools package. 455 O2CB is limited to maintaining a cluster for OCFS2 file systems. 456 It cannot manage any other cluster applications. 457 458 It is always safe to say Y here, as the clustering method is 459 run-time selectable. 460 461config OCFS2_FS_USERSPACE_CLUSTER 462 tristate "OCFS2 Userspace Clustering" 463 depends on OCFS2_FS && DLM 464 default y 465 help 466 This option will allow OCFS2 to use userspace clustering services 467 in conjunction with the DLM in fs/dlm. If you are using a 468 userspace cluster manager, say Y here. 469 470 It is safe to say Y, as the clustering method is run-time 471 selectable. 472 473config OCFS2_FS_STATS 474 bool "OCFS2 statistics" 475 depends on OCFS2_FS 476 default y 477 help 478 This option allows some fs statistics to be captured. Enabling 479 this option may increase the memory consumption. 480 481config OCFS2_DEBUG_MASKLOG 482 bool "OCFS2 logging support" 483 depends on OCFS2_FS 484 default y 485 help 486 The ocfs2 filesystem has an extensive logging system. The system 487 allows selection of events to log via files in /sys/o2cb/logmask/. 488 This option will enlarge your kernel, but it allows debugging of 489 ocfs2 filesystem issues. 490 491config OCFS2_DEBUG_FS 492 bool "OCFS2 expensive checks" 493 depends on OCFS2_FS 494 default n 495 help 496 This option will enable expensive consistency checks. Enable 497 this option for debugging only as it is likely to decrease 498 performance of the filesystem. 499 500endif # BLOCK 501 502config DNOTIFY 503 bool "Dnotify support" 504 default y 505 help 506 Dnotify is a directory-based per-fd file change notification system 507 that uses signals to communicate events to user-space. There exist 508 superior alternatives, but some applications may still rely on 509 dnotify. 510 511 If unsure, say Y. 512 513config INOTIFY 514 bool "Inotify file change notification support" 515 default y 516 ---help--- 517 Say Y here to enable inotify support. Inotify is a file change 518 notification system and a replacement for dnotify. Inotify fixes 519 numerous shortcomings in dnotify and introduces several new features 520 including multiple file events, one-shot support, and unmount 521 notification. 522 523 For more information, see <file:Documentation/filesystems/inotify.txt> 524 525 If unsure, say Y. 526 527config INOTIFY_USER 528 bool "Inotify support for userspace" 529 depends on INOTIFY 530 default y 531 ---help--- 532 Say Y here to enable inotify support for userspace, including the 533 associated system calls. Inotify allows monitoring of both files and 534 directories via a single open fd. Events are read from the file 535 descriptor, which is also select()- and poll()-able. 536 537 For more information, see <file:Documentation/filesystems/inotify.txt> 538 539 If unsure, say Y. 540 541config QUOTA 542 bool "Quota support" 543 help 544 If you say Y here, you will be able to set per user limits for disk 545 usage (also called disk quotas). Currently, it works for the 546 ext2, ext3, and reiserfs file system. ext3 also supports journalled 547 quotas for which you don't need to run quotacheck(8) after an unclean 548 shutdown. 549 For further details, read the Quota mini-HOWTO, available from 550 <http://www.tldp.org/docs.html#howto>, or the documentation provided 551 with the quota tools. Probably the quota support is only useful for 552 multi user systems. If unsure, say N. 553 554config QUOTA_NETLINK_INTERFACE 555 bool "Report quota messages through netlink interface" 556 depends on QUOTA && NET 557 help 558 If you say Y here, quota warnings (about exceeding softlimit, reaching 559 hardlimit, etc.) will be reported through netlink interface. If unsure, 560 say Y. 561 562config PRINT_QUOTA_WARNING 563 bool "Print quota warnings to console (OBSOLETE)" 564 depends on QUOTA 565 default y 566 help 567 If you say Y here, quota warnings (about exceeding softlimit, reaching 568 hardlimit, etc.) will be printed to the process' controlling terminal. 569 Note that this behavior is currently deprecated and may go away in 570 future. Please use notification via netlink socket instead. 571 572config QFMT_V1 573 tristate "Old quota format support" 574 depends on QUOTA 575 help 576 This quota format was (is) used by kernels earlier than 2.4.22. If 577 you have quota working and you don't want to convert to new quota 578 format say Y here. 579 580config QFMT_V2 581 tristate "Quota format v2 support" 582 depends on QUOTA 583 help 584 This quota format allows using quotas with 32-bit UIDs/GIDs. If you 585 need this functionality say Y here. 586 587config QUOTACTL 588 bool 589 depends on XFS_QUOTA || QUOTA 590 default y 591 592config AUTOFS_FS 593 tristate "Kernel automounter support" 594 help 595 The automounter is a tool to automatically mount remote file systems 596 on demand. This implementation is partially kernel-based to reduce 597 overhead in the already-mounted case; this is unlike the BSD 598 automounter (amd), which is a pure user space daemon. 599 600 To use the automounter you need the user-space tools from the autofs 601 package; you can find the location in <file:Documentation/Changes>. 602 You also want to answer Y to "NFS file system support", below. 603 604 If you want to use the newer version of the automounter with more 605 features, say N here and say Y to "Kernel automounter v4 support", 606 below. 607 608 To compile this support as a module, choose M here: the module will be 609 called autofs. 610 611 If you are not a part of a fairly large, distributed network, you 612 probably do not need an automounter, and can say N here. 613 614config AUTOFS4_FS 615 tristate "Kernel automounter version 4 support (also supports v3)" 616 help 617 The automounter is a tool to automatically mount remote file systems 618 on demand. This implementation is partially kernel-based to reduce 619 overhead in the already-mounted case; this is unlike the BSD 620 automounter (amd), which is a pure user space daemon. 621 622 To use the automounter you need the user-space tools from 623 <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also 624 want to answer Y to "NFS file system support", below. 625 626 To compile this support as a module, choose M here: the module will be 627 called autofs4. You will need to add "alias autofs autofs4" to your 628 modules configuration file. 629 630 If you are not a part of a fairly large, distributed network or 631 don't have a laptop which needs to dynamically reconfigure to the 632 local network, you probably do not need an automounter, and can say 633 N here. 634 635config FUSE_FS 636 tristate "Filesystem in Userspace support" 637 help 638 With FUSE it is possible to implement a fully functional filesystem 639 in a userspace program. 640 641 There's also companion library: libfuse. This library along with 642 utilities is available from the FUSE homepage: 643 <http://fuse.sourceforge.net/> 644 645 See <file:Documentation/filesystems/fuse.txt> for more information. 646 See <file:Documentation/Changes> for needed library/utility version. 647 648 If you want to develop a userspace FS, or if you want to use 649 a filesystem based on FUSE, answer Y or M. 650 651config GENERIC_ACL 652 bool 653 select FS_POSIX_ACL 654 655if BLOCK 656menu "CD-ROM/DVD Filesystems" 657 658config ISO9660_FS 659 tristate "ISO 9660 CDROM file system support" 660 help 661 This is the standard file system used on CD-ROMs. It was previously 662 known as "High Sierra File System" and is called "hsfs" on other 663 Unix systems. The so-called Rock-Ridge extensions which allow for 664 long Unix filenames and symbolic links are also supported by this 665 driver. If you have a CD-ROM drive and want to do more with it than 666 just listen to audio CDs and watch its LEDs, say Y (and read 667 <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO, 668 available from <http://www.tldp.org/docs.html#howto>), thereby 669 enlarging your kernel by about 27 KB; otherwise say N. 670 671 To compile this file system support as a module, choose M here: the 672 module will be called isofs. 673 674config JOLIET 675 bool "Microsoft Joliet CDROM extensions" 676 depends on ISO9660_FS 677 select NLS 678 help 679 Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system 680 which allows for long filenames in unicode format (unicode is the 681 new 16 bit character code, successor to ASCII, which encodes the 682 characters of almost all languages of the world; see 683 <http://www.unicode.org/> for more information). Say Y here if you 684 want to be able to read Joliet CD-ROMs under Linux. 685 686config ZISOFS 687 bool "Transparent decompression extension" 688 depends on ISO9660_FS 689 select ZLIB_INFLATE 690 help 691 This is a Linux-specific extension to RockRidge which lets you store 692 data in compressed form on a CD-ROM and have it transparently 693 decompressed when the CD-ROM is accessed. See 694 <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools 695 necessary to create such a filesystem. Say Y here if you want to be 696 able to read such compressed CD-ROMs. 697 698config UDF_FS 699 tristate "UDF file system support" 700 select CRC_ITU_T 701 help 702 This is the new file system used on some CD-ROMs and DVDs. Say Y if 703 you intend to mount DVD discs or CDRW's written in packet mode, or 704 if written to by other UDF utilities, such as DirectCD. 705 Please read <file:Documentation/filesystems/udf.txt>. 706 707 To compile this file system support as a module, choose M here: the 708 module will be called udf. 709 710 If unsure, say N. 711 712config UDF_NLS 713 bool 714 default y 715 depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y) 716 717endmenu 718endif # BLOCK 719 720if BLOCK 721menu "DOS/FAT/NT Filesystems" 722 723config FAT_FS 724 tristate 725 select NLS 726 help 727 If you want to use one of the FAT-based file systems (the MS-DOS and 728 VFAT (Windows 95) file systems), then you must say Y or M here 729 to include FAT support. You will then be able to mount partitions or 730 diskettes with FAT-based file systems and transparently access the 731 files on them, i.e. MSDOS files will look and behave just like all 732 other Unix files. 733 734 This FAT support is not a file system in itself, it only provides 735 the foundation for the other file systems. You will have to say Y or 736 M to at least one of "MSDOS fs support" or "VFAT fs support" in 737 order to make use of it. 738 739 Another way to read and write MSDOS floppies and hard drive 740 partitions from within Linux (but not transparently) is with the 741 mtools ("man mtools") program suite. You don't need to say Y here in 742 order to do that. 743 744 If you need to move large files on floppies between a DOS and a 745 Linux box, say Y here, mount the floppy under Linux with an MSDOS 746 file system and use GNU tar's M option. GNU tar is a program 747 available for Unix and DOS ("man tar" or "info tar"). 748 749 The FAT support will enlarge your kernel by about 37 KB. If unsure, 750 say Y. 751 752 To compile this as a module, choose M here: the module will be called 753 fat. Note that if you compile the FAT support as a module, you 754 cannot compile any of the FAT-based file systems into the kernel 755 -- they will have to be modules as well. 756 757config MSDOS_FS 758 tristate "MSDOS fs support" 759 select FAT_FS 760 help 761 This allows you to mount MSDOS partitions of your hard drive (unless 762 they are compressed; to access compressed MSDOS partitions under 763 Linux, you can either use the DOS emulator DOSEMU, described in the 764 DOSEMU-HOWTO, available from 765 <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in 766 <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you 767 intend to use dosemu with a non-compressed MSDOS partition, say Y 768 here) and MSDOS floppies. This means that file access becomes 769 transparent, i.e. the MSDOS files look and behave just like all 770 other Unix files. 771 772 If you have Windows 95 or Windows NT installed on your MSDOS 773 partitions, you should use the VFAT file system (say Y to "VFAT fs 774 support" below), or you will not be able to see the long filenames 775 generated by Windows 95 / Windows NT. 776 777 This option will enlarge your kernel by about 7 KB. If unsure, 778 answer Y. This will only work if you said Y to "DOS FAT fs support" 779 as well. To compile this as a module, choose M here: the module will 780 be called msdos. 781 782config VFAT_FS 783 tristate "VFAT (Windows-95) fs support" 784 select FAT_FS 785 help 786 This option provides support for normal Windows file systems with 787 long filenames. That includes non-compressed FAT-based file systems 788 used by Windows 95, Windows 98, Windows NT 4.0, and the Unix 789 programs from the mtools package. 790 791 The VFAT support enlarges your kernel by about 10 KB and it only 792 works if you said Y to the "DOS FAT fs support" above. Please read 793 the file <file:Documentation/filesystems/vfat.txt> for details. If 794 unsure, say Y. 795 796 To compile this as a module, choose M here: the module will be called 797 vfat. 798 799config FAT_DEFAULT_CODEPAGE 800 int "Default codepage for FAT" 801 depends on MSDOS_FS || VFAT_FS 802 default 437 803 help 804 This option should be set to the codepage of your FAT filesystems. 805 It can be overridden with the "codepage" mount option. 806 See <file:Documentation/filesystems/vfat.txt> for more information. 807 808config FAT_DEFAULT_IOCHARSET 809 string "Default iocharset for FAT" 810 depends on VFAT_FS 811 default "iso8859-1" 812 help 813 Set this to the default input/output character set you'd 814 like FAT to use. It should probably match the character set 815 that most of your FAT filesystems use, and can be overridden 816 with the "iocharset" mount option for FAT filesystems. 817 Note that "utf8" is not recommended for FAT filesystems. 818 If unsure, you shouldn't set "utf8" here. 819 See <file:Documentation/filesystems/vfat.txt> for more information. 820 821config NTFS_FS 822 tristate "NTFS file system support" 823 select NLS 824 help 825 NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003. 826 827 Saying Y or M here enables read support. There is partial, but 828 safe, write support available. For write support you must also 829 say Y to "NTFS write support" below. 830 831 There are also a number of user-space tools available, called 832 ntfsprogs. These include ntfsundelete and ntfsresize, that work 833 without NTFS support enabled in the kernel. 834 835 This is a rewrite from scratch of Linux NTFS support and replaced 836 the old NTFS code starting with Linux 2.5.11. A backport to 837 the Linux 2.4 kernel series is separately available as a patch 838 from the project web site. 839 840 For more information see <file:Documentation/filesystems/ntfs.txt> 841 and <http://www.linux-ntfs.org/>. 842 843 To compile this file system support as a module, choose M here: the 844 module will be called ntfs. 845 846 If you are not using Windows NT, 2000, XP or 2003 in addition to 847 Linux on your computer it is safe to say N. 848 849config NTFS_DEBUG 850 bool "NTFS debugging support" 851 depends on NTFS_FS 852 help 853 If you are experiencing any problems with the NTFS file system, say 854 Y here. This will result in additional consistency checks to be 855 performed by the driver as well as additional debugging messages to 856 be written to the system log. Note that debugging messages are 857 disabled by default. To enable them, supply the option debug_msgs=1 858 at the kernel command line when booting the kernel or as an option 859 to insmod when loading the ntfs module. Once the driver is active, 860 you can enable debugging messages by doing (as root): 861 echo 1 > /proc/sys/fs/ntfs-debug 862 Replacing the "1" with "0" would disable debug messages. 863 864 If you leave debugging messages disabled, this results in little 865 overhead, but enabling debug messages results in very significant 866 slowdown of the system. 867 868 When reporting bugs, please try to have available a full dump of 869 debugging messages while the misbehaviour was occurring. 870 871config NTFS_RW 872 bool "NTFS write support" 873 depends on NTFS_FS 874 help 875 This enables the partial, but safe, write support in the NTFS driver. 876 877 The only supported operation is overwriting existing files, without 878 changing the file length. No file or directory creation, deletion or 879 renaming is possible. Note only non-resident files can be written to 880 so you may find that some very small files (<500 bytes or so) cannot 881 be written to. 882 883 While we cannot guarantee that it will not damage any data, we have 884 so far not received a single report where the driver would have 885 damaged someones data so we assume it is perfectly safe to use. 886 887 Note: While write support is safe in this version (a rewrite from 888 scratch of the NTFS support), it should be noted that the old NTFS 889 write support, included in Linux 2.5.10 and before (since 1997), 890 is not safe. 891 892 This is currently useful with TopologiLinux. TopologiLinux is run 893 on top of any DOS/Microsoft Windows system without partitioning your 894 hard disk. Unlike other Linux distributions TopologiLinux does not 895 need its own partition. For more information see 896 <http://topologi-linux.sourceforge.net/> 897 898 It is perfectly safe to say N here. 899 900endmenu 901endif # BLOCK 902 903menu "Pseudo filesystems" 904 905config PROC_FS 906 bool "/proc file system support" if EMBEDDED 907 default y 908 help 909 This is a virtual file system providing information about the status 910 of the system. "Virtual" means that it doesn't take up any space on 911 your hard disk: the files are created on the fly by the kernel when 912 you try to access them. Also, you cannot read the files with older 913 version of the program less: you need to use more or cat. 914 915 It's totally cool; for example, "cat /proc/interrupts" gives 916 information about what the different IRQs are used for at the moment 917 (there is a small number of Interrupt ReQuest lines in your computer 918 that are used by the attached devices to gain the CPU's attention -- 919 often a source of trouble if two devices are mistakenly configured 920 to use the same IRQ). The program procinfo to display some 921 information about your system gathered from the /proc file system. 922 923 Before you can use the /proc file system, it has to be mounted, 924 meaning it has to be given a location in the directory hierarchy. 925 That location should be /proc. A command such as "mount -t proc proc 926 /proc" or the equivalent line in /etc/fstab does the job. 927 928 The /proc file system is explained in the file 929 <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage 930 ("man 5 proc"). 931 932 This option will enlarge your kernel by about 67 KB. Several 933 programs depend on this, so everyone should say Y here. 934 935config PROC_KCORE 936 bool "/proc/kcore support" if !ARM 937 depends on PROC_FS && MMU 938 939config PROC_VMCORE 940 bool "/proc/vmcore support (EXPERIMENTAL)" 941 depends on PROC_FS && CRASH_DUMP 942 default y 943 help 944 Exports the dump image of crashed kernel in ELF format. 945 946config PROC_SYSCTL 947 bool "Sysctl support (/proc/sys)" if EMBEDDED 948 depends on PROC_FS 949 select SYSCTL 950 default y 951 ---help--- 952 The sysctl interface provides a means of dynamically changing 953 certain kernel parameters and variables on the fly without requiring 954 a recompile of the kernel or reboot of the system. The primary 955 interface is through /proc/sys. If you say Y here a tree of 956 modifiable sysctl entries will be generated beneath the 957 /proc/sys directory. They are explained in the files 958 in <file:Documentation/sysctl/>. Note that enabling this 959 option will enlarge the kernel by at least 8 KB. 960 961 As it is generally a good thing, you should say Y here unless 962 building a kernel for install/rescue disks or your system is very 963 limited in memory. 964 965config SYSFS 966 bool "sysfs file system support" if EMBEDDED 967 default y 968 help 969 The sysfs filesystem is a virtual filesystem that the kernel uses to 970 export internal kernel objects, their attributes, and their 971 relationships to one another. 972 973 Users can use sysfs to ascertain useful information about the running 974 kernel, such as the devices the kernel has discovered on each bus and 975 which driver each is bound to. sysfs can also be used to tune devices 976 and other kernel subsystems. 977 978 Some system agents rely on the information in sysfs to operate. 979 /sbin/hotplug uses device and object attributes in sysfs to assist in 980 delegating policy decisions, like persistently naming devices. 981 982 sysfs is currently used by the block subsystem to mount the root 983 partition. If sysfs is disabled you must specify the boot device on 984 the kernel boot command line via its major and minor numbers. For 985 example, "root=03:01" for /dev/hda1. 986 987 Designers of embedded systems may wish to say N here to conserve space. 988 989config TMPFS 990 bool "Virtual memory file system support (former shm fs)" 991 help 992 Tmpfs is a file system which keeps all files in virtual memory. 993 994 Everything in tmpfs is temporary in the sense that no files will be 995 created on your hard drive. The files live in memory and swap 996 space. If you unmount a tmpfs instance, everything stored therein is 997 lost. 998 999 See <file:Documentation/filesystems/tmpfs.txt> for details. 1000 1001config TMPFS_POSIX_ACL 1002 bool "Tmpfs POSIX Access Control Lists" 1003 depends on TMPFS 1004 select GENERIC_ACL 1005 help 1006 POSIX Access Control Lists (ACLs) support permissions for users and 1007 groups beyond the owner/group/world scheme. 1008 1009 To learn more about Access Control Lists, visit the POSIX ACLs for 1010 Linux website <http://acl.bestbits.at/>. 1011 1012 If you don't know what Access Control Lists are, say N. 1013 1014config HUGETLBFS 1015 bool "HugeTLB file system support" 1016 depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || \ 1017 (S390 && 64BIT) || BROKEN 1018 help 1019 hugetlbfs is a filesystem backing for HugeTLB pages, based on 1020 ramfs. For architectures that support it, say Y here and read 1021 <file:Documentation/vm/hugetlbpage.txt> for details. 1022 1023 If unsure, say N. 1024 1025config HUGETLB_PAGE 1026 def_bool HUGETLBFS 1027 1028config CONFIGFS_FS 1029 tristate "Userspace-driven configuration filesystem" 1030 depends on SYSFS 1031 help 1032 configfs is a ram-based filesystem that provides the converse 1033 of sysfs's functionality. Where sysfs is a filesystem-based 1034 view of kernel objects, configfs is a filesystem-based manager 1035 of kernel objects, or config_items. 1036 1037 Both sysfs and configfs can and should exist together on the 1038 same system. One is not a replacement for the other. 1039 1040endmenu 1041 1042menu "Miscellaneous filesystems" 1043 1044config ADFS_FS 1045 tristate "ADFS file system support (EXPERIMENTAL)" 1046 depends on BLOCK && EXPERIMENTAL 1047 help 1048 The Acorn Disc Filing System is the standard file system of the 1049 RiscOS operating system which runs on Acorn's ARM-based Risc PC 1050 systems and the Acorn Archimedes range of machines. If you say Y 1051 here, Linux will be able to read from ADFS partitions on hard drives 1052 and from ADFS-formatted floppy discs. If you also want to be able to 1053 write to those devices, say Y to "ADFS write support" below. 1054 1055 The ADFS partition should be the first partition (i.e., 1056 /dev/[hs]d?1) on each of your drives. Please read the file 1057 <file:Documentation/filesystems/adfs.txt> for further details. 1058 1059 To compile this code as a module, choose M here: the module will be 1060 called adfs. 1061 1062 If unsure, say N. 1063 1064config ADFS_FS_RW 1065 bool "ADFS write support (DANGEROUS)" 1066 depends on ADFS_FS 1067 help 1068 If you say Y here, you will be able to write to ADFS partitions on 1069 hard drives and ADFS-formatted floppy disks. This is experimental 1070 codes, so if you're unsure, say N. 1071 1072config AFFS_FS 1073 tristate "Amiga FFS file system support (EXPERIMENTAL)" 1074 depends on BLOCK && EXPERIMENTAL 1075 help 1076 The Fast File System (FFS) is the common file system used on hard 1077 disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y 1078 if you want to be able to read and write files from and to an Amiga 1079 FFS partition on your hard drive. Amiga floppies however cannot be 1080 read with this driver due to an incompatibility of the floppy 1081 controller used in an Amiga and the standard floppy controller in 1082 PCs and workstations. Read <file:Documentation/filesystems/affs.txt> 1083 and <file:fs/affs/Changes>. 1084 1085 With this driver you can also mount disk files used by Bernd 1086 Schmidt's Un*X Amiga Emulator 1087 (<http://www.freiburg.linux.de/~uae/>). 1088 If you want to do this, you will also need to say Y or M to "Loop 1089 device support", above. 1090 1091 To compile this file system support as a module, choose M here: the 1092 module will be called affs. If unsure, say N. 1093 1094config ECRYPT_FS 1095 tristate "eCrypt filesystem layer support (EXPERIMENTAL)" 1096 depends on EXPERIMENTAL && KEYS && CRYPTO && NET 1097 help 1098 Encrypted filesystem that operates on the VFS layer. See 1099 <file:Documentation/filesystems/ecryptfs.txt> to learn more about 1100 eCryptfs. Userspace components are required and can be 1101 obtained from <http://ecryptfs.sf.net>. 1102 1103 To compile this file system support as a module, choose M here: the 1104 module will be called ecryptfs. 1105 1106config HFS_FS 1107 tristate "Apple Macintosh file system support (EXPERIMENTAL)" 1108 depends on BLOCK && EXPERIMENTAL 1109 select NLS 1110 help 1111 If you say Y here, you will be able to mount Macintosh-formatted 1112 floppy disks and hard drive partitions with full read-write access. 1113 Please read <file:Documentation/filesystems/hfs.txt> to learn about 1114 the available mount options. 1115 1116 To compile this file system support as a module, choose M here: the 1117 module will be called hfs. 1118 1119config HFSPLUS_FS 1120 tristate "Apple Extended HFS file system support" 1121 depends on BLOCK 1122 select NLS 1123 select NLS_UTF8 1124 help 1125 If you say Y here, you will be able to mount extended format 1126 Macintosh-formatted hard drive partitions with full read-write access. 1127 1128 This file system is often called HFS+ and was introduced with 1129 MacOS 8. It includes all Mac specific filesystem data such as 1130 data forks and creator codes, but it also has several UNIX 1131 style features such as file ownership and permissions. 1132 1133config BEFS_FS 1134 tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)" 1135 depends on BLOCK && EXPERIMENTAL 1136 select NLS 1137 help 1138 The BeOS File System (BeFS) is the native file system of Be, Inc's 1139 BeOS. Notable features include support for arbitrary attributes 1140 on files and directories, and database-like indices on selected 1141 attributes. (Also note that this driver doesn't make those features 1142 available at this time). It is a 64 bit filesystem, so it supports 1143 extremely large volumes and files. 1144 1145 If you use this filesystem, you should also say Y to at least one 1146 of the NLS (native language support) options below. 1147 1148 If you don't know what this is about, say N. 1149 1150 To compile this as a module, choose M here: the module will be 1151 called befs. 1152 1153config BEFS_DEBUG 1154 bool "Debug BeFS" 1155 depends on BEFS_FS 1156 help 1157 If you say Y here, you can use the 'debug' mount option to enable 1158 debugging output from the driver. 1159 1160config BFS_FS 1161 tristate "BFS file system support (EXPERIMENTAL)" 1162 depends on BLOCK && EXPERIMENTAL 1163 help 1164 Boot File System (BFS) is a file system used under SCO UnixWare to 1165 allow the bootloader access to the kernel image and other important 1166 files during the boot process. It is usually mounted under /stand 1167 and corresponds to the slice marked as "STAND" in the UnixWare 1168 partition. You should say Y if you want to read or write the files 1169 on your /stand slice from within Linux. You then also need to say Y 1170 to "UnixWare slices support", below. More information about the BFS 1171 file system is contained in the file 1172 <file:Documentation/filesystems/bfs.txt>. 1173 1174 If you don't know what this is about, say N. 1175 1176 To compile this as a module, choose M here: the module will be called 1177 bfs. Note that the file system of your root partition (the one 1178 containing the directory /) cannot be compiled as a module. 1179 1180 1181 1182config EFS_FS 1183 tristate "EFS file system support (read only) (EXPERIMENTAL)" 1184 depends on BLOCK && EXPERIMENTAL 1185 help 1186 EFS is an older file system used for non-ISO9660 CD-ROMs and hard 1187 disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer 1188 uses the XFS file system for hard disk partitions however). 1189 1190 This implementation only offers read-only access. If you don't know 1191 what all this is about, it's safe to say N. For more information 1192 about EFS see its home page at <http://aeschi.ch.eu.org/efs/>. 1193 1194 To compile the EFS file system support as a module, choose M here: the 1195 module will be called efs. 1196 1197config JFFS2_FS 1198 tristate "Journalling Flash File System v2 (JFFS2) support" 1199 select CRC32 1200 depends on MTD 1201 help 1202 JFFS2 is the second generation of the Journalling Flash File System 1203 for use on diskless embedded devices. It provides improved wear 1204 levelling, compression and support for hard links. You cannot use 1205 this on normal block devices, only on 'MTD' devices. 1206 1207 Further information on the design and implementation of JFFS2 is 1208 available at <http://sources.redhat.com/jffs2/>. 1209 1210config JFFS2_FS_DEBUG 1211 int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)" 1212 depends on JFFS2_FS 1213 default "0" 1214 help 1215 This controls the amount of debugging messages produced by the JFFS2 1216 code. Set it to zero for use in production systems. For evaluation, 1217 testing and debugging, it's advisable to set it to one. This will 1218 enable a few assertions and will print debugging messages at the 1219 KERN_DEBUG loglevel, where they won't normally be visible. Level 2 1220 is unlikely to be useful - it enables extra debugging in certain 1221 areas which at one point needed debugging, but when the bugs were 1222 located and fixed, the detailed messages were relegated to level 2. 1223 1224 If reporting bugs, please try to have available a full dump of the 1225 messages at debug level 1 while the misbehaviour was occurring. 1226 1227config JFFS2_FS_WRITEBUFFER 1228 bool "JFFS2 write-buffering support" 1229 depends on JFFS2_FS 1230 default y 1231 help 1232 This enables the write-buffering support in JFFS2. 1233 1234 This functionality is required to support JFFS2 on the following 1235 types of flash devices: 1236 - NAND flash 1237 - NOR flash with transparent ECC 1238 - DataFlash 1239 1240config JFFS2_FS_WBUF_VERIFY 1241 bool "Verify JFFS2 write-buffer reads" 1242 depends on JFFS2_FS_WRITEBUFFER 1243 default n 1244 help 1245 This causes JFFS2 to read back every page written through the 1246 write-buffer, and check for errors. 1247 1248config JFFS2_SUMMARY 1249 bool "JFFS2 summary support (EXPERIMENTAL)" 1250 depends on JFFS2_FS && EXPERIMENTAL 1251 default n 1252 help 1253 This feature makes it possible to use summary information 1254 for faster filesystem mount. 1255 1256 The summary information can be inserted into a filesystem image 1257 by the utility 'sumtool'. 1258 1259 If unsure, say 'N'. 1260 1261config JFFS2_FS_XATTR 1262 bool "JFFS2 XATTR support (EXPERIMENTAL)" 1263 depends on JFFS2_FS && EXPERIMENTAL 1264 default n 1265 help 1266 Extended attributes are name:value pairs associated with inodes by 1267 the kernel or by users (see the attr(5) manual page, or visit 1268 <http://acl.bestbits.at/> for details). 1269 1270 If unsure, say N. 1271 1272config JFFS2_FS_POSIX_ACL 1273 bool "JFFS2 POSIX Access Control Lists" 1274 depends on JFFS2_FS_XATTR 1275 default y 1276 select FS_POSIX_ACL 1277 help 1278 Posix Access Control Lists (ACLs) support permissions for users and 1279 groups beyond the owner/group/world scheme. 1280 1281 To learn more about Access Control Lists, visit the Posix ACLs for 1282 Linux website <http://acl.bestbits.at/>. 1283 1284 If you don't know what Access Control Lists are, say N 1285 1286config JFFS2_FS_SECURITY 1287 bool "JFFS2 Security Labels" 1288 depends on JFFS2_FS_XATTR 1289 default y 1290 help 1291 Security labels support alternative access control models 1292 implemented by security modules like SELinux. This option 1293 enables an extended attribute handler for file security 1294 labels in the jffs2 filesystem. 1295 1296 If you are not using a security module that requires using 1297 extended attributes for file security labels, say N. 1298 1299config JFFS2_COMPRESSION_OPTIONS 1300 bool "Advanced compression options for JFFS2" 1301 depends on JFFS2_FS 1302 default n 1303 help 1304 Enabling this option allows you to explicitly choose which 1305 compression modules, if any, are enabled in JFFS2. Removing 1306 compressors can mean you cannot read existing file systems, 1307 and enabling experimental compressors can mean that you 1308 write a file system which cannot be read by a standard kernel. 1309 1310 If unsure, you should _definitely_ say 'N'. 1311 1312config JFFS2_ZLIB 1313 bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS 1314 select ZLIB_INFLATE 1315 select ZLIB_DEFLATE 1316 depends on JFFS2_FS 1317 default y 1318 help 1319 Zlib is designed to be a free, general-purpose, legally unencumbered, 1320 lossless data-compression library for use on virtually any computer 1321 hardware and operating system. See <http://www.gzip.org/zlib/> for 1322 further information. 1323 1324 Say 'Y' if unsure. 1325 1326config JFFS2_LZO 1327 bool "JFFS2 LZO compression support" if JFFS2_COMPRESSION_OPTIONS 1328 select LZO_COMPRESS 1329 select LZO_DECOMPRESS 1330 depends on JFFS2_FS 1331 default n 1332 help 1333 minilzo-based compression. Generally works better than Zlib. 1334 1335 This feature was added in July, 2007. Say 'N' if you need 1336 compatibility with older bootloaders or kernels. 1337 1338config JFFS2_RTIME 1339 bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS 1340 depends on JFFS2_FS 1341 default y 1342 help 1343 Rtime does manage to recompress already-compressed data. Say 'Y' if unsure. 1344 1345config JFFS2_RUBIN 1346 bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS 1347 depends on JFFS2_FS 1348 default n 1349 help 1350 RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure. 1351 1352choice 1353 prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS 1354 default JFFS2_CMODE_PRIORITY 1355 depends on JFFS2_FS 1356 help 1357 You can set here the default compression mode of JFFS2 from 1358 the available compression modes. Don't touch if unsure. 1359 1360config JFFS2_CMODE_NONE 1361 bool "no compression" 1362 help 1363 Uses no compression. 1364 1365config JFFS2_CMODE_PRIORITY 1366 bool "priority" 1367 help 1368 Tries the compressors in a predefined order and chooses the first 1369 successful one. 1370 1371config JFFS2_CMODE_SIZE 1372 bool "size (EXPERIMENTAL)" 1373 help 1374 Tries all compressors and chooses the one which has the smallest 1375 result. 1376 1377config JFFS2_CMODE_FAVOURLZO 1378 bool "Favour LZO" 1379 help 1380 Tries all compressors and chooses the one which has the smallest 1381 result but gives some preference to LZO (which has faster 1382 decompression) at the expense of size. 1383 1384endchoice 1385 1386# UBIFS File system configuration 1387source "fs/ubifs/Kconfig" 1388 1389config CRAMFS 1390 tristate "Compressed ROM file system support (cramfs)" 1391 depends on BLOCK 1392 select ZLIB_INFLATE 1393 help 1394 Saying Y here includes support for CramFs (Compressed ROM File 1395 System). CramFs is designed to be a simple, small, and compressed 1396 file system for ROM based embedded systems. CramFs is read-only, 1397 limited to 256MB file systems (with 16MB files), and doesn't support 1398 16/32 bits uid/gid, hard links and timestamps. 1399 1400 See <file:Documentation/filesystems/cramfs.txt> and 1401 <file:fs/cramfs/README> for further information. 1402 1403 To compile this as a module, choose M here: the module will be called 1404 cramfs. Note that the root file system (the one containing the 1405 directory /) cannot be compiled as a module. 1406 1407 If unsure, say N. 1408 1409config VXFS_FS 1410 tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)" 1411 depends on BLOCK 1412 help 1413 FreeVxFS is a file system driver that support the VERITAS VxFS(TM) 1414 file system format. VERITAS VxFS(TM) is the standard file system 1415 of SCO UnixWare (and possibly others) and optionally available 1416 for Sunsoft Solaris, HP-UX and many other operating systems. 1417 Currently only readonly access is supported. 1418 1419 NOTE: the file system type as used by mount(1), mount(2) and 1420 fstab(5) is 'vxfs' as it describes the file system format, not 1421 the actual driver. 1422 1423 To compile this as a module, choose M here: the module will be 1424 called freevxfs. If unsure, say N. 1425 1426config MINIX_FS 1427 tristate "Minix file system support" 1428 depends on BLOCK 1429 help 1430 Minix is a simple operating system used in many classes about OS's. 1431 The minix file system (method to organize files on a hard disk 1432 partition or a floppy disk) was the original file system for Linux, 1433 but has been superseded by the second extended file system ext2fs. 1434 You don't want to use the minix file system on your hard disk 1435 because of certain built-in restrictions, but it is sometimes found 1436 on older Linux floppy disks. This option will enlarge your kernel 1437 by about 28 KB. If unsure, say N. 1438 1439 To compile this file system support as a module, choose M here: the 1440 module will be called minix. Note that the file system of your root 1441 partition (the one containing the directory /) cannot be compiled as 1442 a module. 1443 1444 1445config HPFS_FS 1446 tristate "OS/2 HPFS file system support" 1447 depends on BLOCK 1448 help 1449 OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS 1450 is the file system used for organizing files on OS/2 hard disk 1451 partitions. Say Y if you want to be able to read files from and 1452 write files to an OS/2 HPFS partition on your hard drive. OS/2 1453 floppies however are in regular MSDOS format, so you don't need this 1454 option in order to be able to read them. Read 1455 <file:Documentation/filesystems/hpfs.txt>. 1456 1457 To compile this file system support as a module, choose M here: the 1458 module will be called hpfs. If unsure, say N. 1459 1460 1461config QNX4FS_FS 1462 tristate "QNX4 file system support (read only)" 1463 depends on BLOCK 1464 help 1465 This is the file system used by the real-time operating systems 1466 QNX 4 and QNX 6 (the latter is also called QNX RTP). 1467 Further information is available at <http://www.qnx.com/>. 1468 Say Y if you intend to mount QNX hard disks or floppies. 1469 Unless you say Y to "QNX4FS read-write support" below, you will 1470 only be able to read these file systems. 1471 1472 To compile this file system support as a module, choose M here: the 1473 module will be called qnx4. 1474 1475 If you don't know whether you need it, then you don't need it: 1476 answer N. 1477 1478config QNX4FS_RW 1479 bool "QNX4FS write support (DANGEROUS)" 1480 depends on QNX4FS_FS && EXPERIMENTAL && BROKEN 1481 help 1482 Say Y if you want to test write support for QNX4 file systems. 1483 1484 It's currently broken, so for now: 1485 answer N. 1486 1487config ROMFS_FS 1488 tristate "ROM file system support" 1489 depends on BLOCK 1490 ---help--- 1491 This is a very small read-only file system mainly intended for 1492 initial ram disks of installation disks, but it could be used for 1493 other read-only media as well. Read 1494 <file:Documentation/filesystems/romfs.txt> for details. 1495 1496 To compile this file system support as a module, choose M here: the 1497 module will be called romfs. Note that the file system of your 1498 root partition (the one containing the directory /) cannot be a 1499 module. 1500 1501 If you don't know whether you need it, then you don't need it: 1502 answer N. 1503 1504 1505config SYSV_FS 1506 tristate "System V/Xenix/V7/Coherent file system support" 1507 depends on BLOCK 1508 help 1509 SCO, Xenix and Coherent are commercial Unix systems for Intel 1510 machines, and Version 7 was used on the DEC PDP-11. Saying Y 1511 here would allow you to read from their floppies and hard disk 1512 partitions. 1513 1514 If you have floppies or hard disk partitions like that, it is likely 1515 that they contain binaries from those other Unix systems; in order 1516 to run these binaries, you will want to install linux-abi which is 1517 a set of kernel modules that lets you run SCO, Xenix, Wyse, 1518 UnixWare, Dell Unix and System V programs under Linux. It is 1519 available via FTP (user: ftp) from 1520 <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>). 1521 NOTE: that will work only for binaries from Intel-based systems; 1522 PDP ones will have to wait until somebody ports Linux to -11 ;-) 1523 1524 If you only intend to mount files from some other Unix over the 1525 network using NFS, you don't need the System V file system support 1526 (but you need NFS file system support obviously). 1527 1528 Note that this option is generally not needed for floppies, since a 1529 good portable way to transport files and directories between unixes 1530 (and even other operating systems) is given by the tar program ("man 1531 tar" or preferably "info tar"). Note also that this option has 1532 nothing whatsoever to do with the option "System V IPC". Read about 1533 the System V file system in 1534 <file:Documentation/filesystems/sysv-fs.txt>. 1535 Saying Y here will enlarge your kernel by about 27 KB. 1536 1537 To compile this as a module, choose M here: the module will be called 1538 sysv. 1539 1540 If you haven't heard about all of this before, it's safe to say N. 1541 1542 1543config UFS_FS 1544 tristate "UFS file system support (read only)" 1545 depends on BLOCK 1546 help 1547 BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD, 1548 OpenBSD and NeXTstep) use a file system called UFS. Some System V 1549 Unixes can create and mount hard disk partitions and diskettes using 1550 this file system as well. Saying Y here will allow you to read from 1551 these partitions; if you also want to write to them, say Y to the 1552 experimental "UFS file system write support", below. Please read the 1553 file <file:Documentation/filesystems/ufs.txt> for more information. 1554 1555 The recently released UFS2 variant (used in FreeBSD 5.x) is 1556 READ-ONLY supported. 1557 1558 Note that this option is generally not needed for floppies, since a 1559 good portable way to transport files and directories between unixes 1560 (and even other operating systems) is given by the tar program ("man 1561 tar" or preferably "info tar"). 1562 1563 When accessing NeXTstep files, you may need to convert them from the 1564 NeXT character set to the Latin1 character set; use the program 1565 recode ("info recode") for this purpose. 1566 1567 To compile the UFS file system support as a module, choose M here: the 1568 module will be called ufs. 1569 1570 If you haven't heard about all of this before, it's safe to say N. 1571 1572config UFS_FS_WRITE 1573 bool "UFS file system write support (DANGEROUS)" 1574 depends on UFS_FS && EXPERIMENTAL 1575 help 1576 Say Y here if you want to try writing to UFS partitions. This is 1577 experimental, so you should back up your UFS partitions beforehand. 1578 1579config UFS_DEBUG 1580 bool "UFS debugging" 1581 depends on UFS_FS 1582 help 1583 If you are experiencing any problems with the UFS filesystem, say 1584 Y here. This will result in _many_ additional debugging messages to be 1585 written to the system log. 1586 1587endmenu 1588 1589menuconfig NETWORK_FILESYSTEMS 1590 bool "Network File Systems" 1591 default y 1592 depends on NET 1593 ---help--- 1594 Say Y here to get to see options for network filesystems and 1595 filesystem-related networking code, such as NFS daemon and 1596 RPCSEC security modules. 1597 1598 This option alone does not add any kernel code. 1599 1600 If you say N, all options in this submenu will be skipped and 1601 disabled; if unsure, say Y here. 1602 1603if NETWORK_FILESYSTEMS 1604 1605config NFS_FS 1606 tristate "NFS client support" 1607 depends on INET 1608 select LOCKD 1609 select SUNRPC 1610 select NFS_ACL_SUPPORT if NFS_V3_ACL 1611 help 1612 Choose Y here if you want to access files residing on other 1613 computers using Sun's Network File System protocol. To compile 1614 this file system support as a module, choose M here: the module 1615 will be called nfs. 1616 1617 To mount file systems exported by NFS servers, you also need to 1618 install the user space mount.nfs command which can be found in 1619 the Linux nfs-utils package, available from http://linux-nfs.org/. 1620 Information about using the mount command is available in the 1621 mount(8) man page. More detail about the Linux NFS client 1622 implementation is available via the nfs(5) man page. 1623 1624 Below you can choose which versions of the NFS protocol are 1625 available in the kernel to mount NFS servers. Support for NFS 1626 version 2 (RFC 1094) is always available when NFS_FS is selected. 1627 1628 To configure a system which mounts its root file system via NFS 1629 at boot time, say Y here, select "Kernel level IP 1630 autoconfiguration" in the NETWORK menu, and select "Root file 1631 system on NFS" below. You cannot compile this file system as a 1632 module in this case. 1633 1634 If unsure, say N. 1635 1636config NFS_V3 1637 bool "NFS client support for NFS version 3" 1638 depends on NFS_FS 1639 help 1640 This option enables support for version 3 of the NFS protocol 1641 (RFC 1813) in the kernel's NFS client. 1642 1643 If unsure, say Y. 1644 1645config NFS_V3_ACL 1646 bool "NFS client support for the NFSv3 ACL protocol extension" 1647 depends on NFS_V3 1648 help 1649 Some NFS servers support an auxiliary NFSv3 ACL protocol that 1650 Sun added to Solaris but never became an official part of the 1651 NFS version 3 protocol. This protocol extension allows 1652 applications on NFS clients to manipulate POSIX Access Control 1653 Lists on files residing on NFS servers. NFS servers enforce 1654 ACLs on local files whether this protocol is available or not. 1655 1656 Choose Y here if your NFS server supports the Solaris NFSv3 ACL 1657 protocol extension and you want your NFS client to allow 1658 applications to access and modify ACLs on files on the server. 1659 1660 Most NFS servers don't support the Solaris NFSv3 ACL protocol 1661 extension. You can choose N here or specify the "noacl" mount 1662 option to prevent your NFS client from trying to use the NFSv3 1663 ACL protocol. 1664 1665 If unsure, say N. 1666 1667config NFS_V4 1668 bool "NFS client support for NFS version 4 (EXPERIMENTAL)" 1669 depends on NFS_FS && EXPERIMENTAL 1670 select RPCSEC_GSS_KRB5 1671 help 1672 This option enables support for version 4 of the NFS protocol 1673 (RFC 3530) in the kernel's NFS client. 1674 1675 To mount NFS servers using NFSv4, you also need to install user 1676 space programs which can be found in the Linux nfs-utils package, 1677 available from http://linux-nfs.org/. 1678 1679 If unsure, say N. 1680 1681config ROOT_NFS 1682 bool "Root file system on NFS" 1683 depends on NFS_FS=y && IP_PNP 1684 help 1685 If you want your system to mount its root file system via NFS, 1686 choose Y here. This is common practice for managing systems 1687 without local permanent storage. For details, read 1688 <file:Documentation/filesystems/nfsroot.txt>. 1689 1690 Most people say N here. 1691 1692config NFSD 1693 tristate "NFS server support" 1694 depends on INET 1695 select LOCKD 1696 select SUNRPC 1697 select EXPORTFS 1698 select NFS_ACL_SUPPORT if NFSD_V2_ACL 1699 help 1700 Choose Y here if you want to allow other computers to access 1701 files residing on this system using Sun's Network File System 1702 protocol. To compile the NFS server support as a module, 1703 choose M here: the module will be called nfsd. 1704 1705 You may choose to use a user-space NFS server instead, in which 1706 case you can choose N here. 1707 1708 To export local file systems using NFS, you also need to install 1709 user space programs which can be found in the Linux nfs-utils 1710 package, available from http://linux-nfs.org/. More detail about 1711 the Linux NFS server implementation is available via the 1712 exports(5) man page. 1713 1714 Below you can choose which versions of the NFS protocol are 1715 available to clients mounting the NFS server on this system. 1716 Support for NFS version 2 (RFC 1094) is always available when 1717 CONFIG_NFSD is selected. 1718 1719 If unsure, say N. 1720 1721config NFSD_V2_ACL 1722 bool 1723 depends on NFSD 1724 1725config NFSD_V3 1726 bool "NFS server support for NFS version 3" 1727 depends on NFSD 1728 help 1729 This option enables support in your system's NFS server for 1730 version 3 of the NFS protocol (RFC 1813). 1731 1732 If unsure, say Y. 1733 1734config NFSD_V3_ACL 1735 bool "NFS server support for the NFSv3 ACL protocol extension" 1736 depends on NFSD_V3 1737 select NFSD_V2_ACL 1738 help 1739 Solaris NFS servers support an auxiliary NFSv3 ACL protocol that 1740 never became an official part of the NFS version 3 protocol. 1741 This protocol extension allows applications on NFS clients to 1742 manipulate POSIX Access Control Lists on files residing on NFS 1743 servers. NFS servers enforce POSIX ACLs on local files whether 1744 this protocol is available or not. 1745 1746 This option enables support in your system's NFS server for the 1747 NFSv3 ACL protocol extension allowing NFS clients to manipulate 1748 POSIX ACLs on files exported by your system's NFS server. NFS 1749 clients which support the Solaris NFSv3 ACL protocol can then 1750 access and modify ACLs on your NFS server. 1751 1752 To store ACLs on your NFS server, you also need to enable ACL- 1753 related CONFIG options for your local file systems of choice. 1754 1755 If unsure, say N. 1756 1757config NFSD_V4 1758 bool "NFS server support for NFS version 4 (EXPERIMENTAL)" 1759 depends on NFSD && PROC_FS && EXPERIMENTAL 1760 select NFSD_V3 1761 select FS_POSIX_ACL 1762 select RPCSEC_GSS_KRB5 1763 help 1764 This option enables support in your system's NFS server for 1765 version 4 of the NFS protocol (RFC 3530). 1766 1767 To export files using NFSv4, you need to install additional user 1768 space programs which can be found in the Linux nfs-utils package, 1769 available from http://linux-nfs.org/. 1770 1771 If unsure, say N. 1772 1773config LOCKD 1774 tristate 1775 1776config LOCKD_V4 1777 bool 1778 depends on NFSD_V3 || NFS_V3 1779 default y 1780 1781config EXPORTFS 1782 tristate 1783 1784config NFS_ACL_SUPPORT 1785 tristate 1786 select FS_POSIX_ACL 1787 1788config NFS_COMMON 1789 bool 1790 depends on NFSD || NFS_FS 1791 default y 1792 1793config SUNRPC 1794 tristate 1795 1796config SUNRPC_GSS 1797 tristate 1798 1799config SUNRPC_XPRT_RDMA 1800 tristate 1801 depends on SUNRPC && INFINIBAND && EXPERIMENTAL 1802 default SUNRPC && INFINIBAND 1803 help 1804 This option enables an RPC client transport capability that 1805 allows the NFS client to mount servers via an RDMA-enabled 1806 transport. 1807 1808 To compile RPC client RDMA transport support as a module, 1809 choose M here: the module will be called xprtrdma. 1810 1811 If unsure, say N. 1812 1813config RPCSEC_GSS_KRB5 1814 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)" 1815 depends on SUNRPC && EXPERIMENTAL 1816 select SUNRPC_GSS 1817 select CRYPTO 1818 select CRYPTO_MD5 1819 select CRYPTO_DES 1820 select CRYPTO_CBC 1821 help 1822 Choose Y here to enable Secure RPC using the Kerberos version 5 1823 GSS-API mechanism (RFC 1964). 1824 1825 Secure RPC calls with Kerberos require an auxiliary user-space 1826 daemon which may be found in the Linux nfs-utils package 1827 available from http://linux-nfs.org/. In addition, user-space 1828 Kerberos support should be installed. 1829 1830 If unsure, say N. 1831 1832config RPCSEC_GSS_SPKM3 1833 tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)" 1834 depends on SUNRPC && EXPERIMENTAL 1835 select SUNRPC_GSS 1836 select CRYPTO 1837 select CRYPTO_MD5 1838 select CRYPTO_DES 1839 select CRYPTO_CAST5 1840 select CRYPTO_CBC 1841 help 1842 Choose Y here to enable Secure RPC using the SPKM3 public key 1843 GSS-API mechansim (RFC 2025). 1844 1845 Secure RPC calls with SPKM3 require an auxiliary userspace 1846 daemon which may be found in the Linux nfs-utils package 1847 available from http://linux-nfs.org/. 1848 1849 If unsure, say N. 1850 1851config SMB_FS 1852 tristate "SMB file system support (OBSOLETE, please use CIFS)" 1853 depends on INET 1854 select NLS 1855 help 1856 SMB (Server Message Block) is the protocol Windows for Workgroups 1857 (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share 1858 files and printers over local networks. Saying Y here allows you to 1859 mount their file systems (often called "shares" in this context) and 1860 access them just like any other Unix directory. Currently, this 1861 works only if the Windows machines use TCP/IP as the underlying 1862 transport protocol, and not NetBEUI. For details, read 1863 <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO, 1864 available from <http://www.tldp.org/docs.html#howto>. 1865 1866 Note: if you just want your box to act as an SMB *server* and make 1867 files and printing services available to Windows clients (which need 1868 to have a TCP/IP stack), you don't need to say Y here; you can use 1869 the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>) 1870 for that. 1871 1872 General information about how to connect Linux, Windows machines and 1873 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>. 1874 1875 To compile the SMB support as a module, choose M here: 1876 the module will be called smbfs. Most people say N, however. 1877 1878config SMB_NLS_DEFAULT 1879 bool "Use a default NLS" 1880 depends on SMB_FS 1881 help 1882 Enabling this will make smbfs use nls translations by default. You 1883 need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls 1884 settings and you need to give the default nls for the SMB server as 1885 CONFIG_SMB_NLS_REMOTE. 1886 1887 The nls settings can be changed at mount time, if your smbmount 1888 supports that, using the codepage and iocharset parameters. 1889 1890 smbmount from samba 2.2.0 or later supports this. 1891 1892config SMB_NLS_REMOTE 1893 string "Default Remote NLS Option" 1894 depends on SMB_NLS_DEFAULT 1895 default "cp437" 1896 help 1897 This setting allows you to specify a default value for which 1898 codepage the server uses. If this field is left blank no 1899 translations will be done by default. The local codepage/charset 1900 default to CONFIG_NLS_DEFAULT. 1901 1902 The nls settings can be changed at mount time, if your smbmount 1903 supports that, using the codepage and iocharset parameters. 1904 1905 smbmount from samba 2.2.0 or later supports this. 1906 1907config CIFS 1908 tristate "CIFS support (advanced network filesystem, SMBFS successor)" 1909 depends on INET 1910 select NLS 1911 help 1912 This is the client VFS module for the Common Internet File System 1913 (CIFS) protocol which is the successor to the Server Message Block 1914 (SMB) protocol, the native file sharing mechanism for most early 1915 PC operating systems. The CIFS protocol is fully supported by 1916 file servers such as Windows 2000 (including Windows 2003, NT 4 1917 and Windows XP) as well by Samba (which provides excellent CIFS 1918 server support for Linux and many other operating systems). Limited 1919 support for OS/2 and Windows ME and similar servers is provided as 1920 well. 1921 1922 The cifs module provides an advanced network file system 1923 client for mounting to CIFS compliant servers. It includes 1924 support for DFS (hierarchical name space), secure per-user 1925 session establishment via Kerberos or NTLM or NTLMv2, 1926 safe distributed caching (oplock), optional packet 1927 signing, Unicode and other internationalization improvements. 1928 If you need to mount to Samba or Windows from this machine, say Y. 1929 1930config CIFS_STATS 1931 bool "CIFS statistics" 1932 depends on CIFS 1933 help 1934 Enabling this option will cause statistics for each server share 1935 mounted by the cifs client to be displayed in /proc/fs/cifs/Stats 1936 1937config CIFS_STATS2 1938 bool "Extended statistics" 1939 depends on CIFS_STATS 1940 help 1941 Enabling this option will allow more detailed statistics on SMB 1942 request timing to be displayed in /proc/fs/cifs/DebugData and also 1943 allow optional logging of slow responses to dmesg (depending on the 1944 value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details). 1945 These additional statistics may have a minor effect on performance 1946 and memory utilization. 1947 1948 Unless you are a developer or are doing network performance analysis 1949 or tuning, say N. 1950 1951config CIFS_WEAK_PW_HASH 1952 bool "Support legacy servers which use weaker LANMAN security" 1953 depends on CIFS 1954 help 1955 Modern CIFS servers including Samba and most Windows versions 1956 (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos) 1957 security mechanisms. These hash the password more securely 1958 than the mechanisms used in the older LANMAN version of the 1959 SMB protocol but LANMAN based authentication is needed to 1960 establish sessions with some old SMB servers. 1961 1962 Enabling this option allows the cifs module to mount to older 1963 LANMAN based servers such as OS/2 and Windows 95, but such 1964 mounts may be less secure than mounts using NTLM or more recent 1965 security mechanisms if you are on a public network. Unless you 1966 have a need to access old SMB servers (and are on a private 1967 network) you probably want to say N. Even if this support 1968 is enabled in the kernel build, LANMAN authentication will not be 1969 used automatically. At runtime LANMAN mounts are disabled but 1970 can be set to required (or optional) either in 1971 /proc/fs/cifs (see fs/cifs/README for more detail) or via an 1972 option on the mount command. This support is disabled by 1973 default in order to reduce the possibility of a downgrade 1974 attack. 1975 1976 If unsure, say N. 1977 1978config CIFS_XATTR 1979 bool "CIFS extended attributes" 1980 depends on CIFS 1981 help 1982 Extended attributes are name:value pairs associated with inodes by 1983 the kernel or by users (see the attr(5) manual page, or visit 1984 <http://acl.bestbits.at/> for details). CIFS maps the name of 1985 extended attributes beginning with the user namespace prefix 1986 to SMB/CIFS EAs. EAs are stored on Windows servers without the 1987 user namespace prefix, but their names are seen by Linux cifs clients 1988 prefaced by the user namespace prefix. The system namespace 1989 (used by some filesystems to store ACLs) is not supported at 1990 this time. 1991 1992 If unsure, say N. 1993 1994config CIFS_POSIX 1995 bool "CIFS POSIX Extensions" 1996 depends on CIFS_XATTR 1997 help 1998 Enabling this option will cause the cifs client to attempt to 1999 negotiate a newer dialect with servers, such as Samba 3.0.5 2000 or later, that optionally can handle more POSIX like (rather 2001 than Windows like) file behavior. It also enables 2002 support for POSIX ACLs (getfacl and setfacl) to servers 2003 (such as Samba 3.10 and later) which can negotiate 2004 CIFS POSIX ACL support. If unsure, say N. 2005 2006config CIFS_DEBUG2 2007 bool "Enable additional CIFS debugging routines" 2008 depends on CIFS 2009 help 2010 Enabling this option adds a few more debugging routines 2011 to the cifs code which slightly increases the size of 2012 the cifs module and can cause additional logging of debug 2013 messages in some error paths, slowing performance. This 2014 option can be turned off unless you are debugging 2015 cifs problems. If unsure, say N. 2016 2017config CIFS_EXPERIMENTAL 2018 bool "CIFS Experimental Features (EXPERIMENTAL)" 2019 depends on CIFS && EXPERIMENTAL 2020 help 2021 Enables cifs features under testing. These features are 2022 experimental and currently include DFS support and directory 2023 change notification ie fcntl(F_DNOTIFY), as well as the upcall 2024 mechanism which will be used for Kerberos session negotiation 2025 and uid remapping. Some of these features also may depend on 2026 setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental 2027 (which is disabled by default). See the file fs/cifs/README 2028 for more details. If unsure, say N. 2029 2030config CIFS_UPCALL 2031 bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)" 2032 depends on CIFS_EXPERIMENTAL 2033 depends on KEYS 2034 help 2035 Enables an upcall mechanism for CIFS which accesses 2036 userspace helper utilities to provide SPNEGO packaged (RFC 4178) 2037 Kerberos tickets which are needed to mount to certain secure servers 2038 (for which more secure Kerberos authentication is required). If 2039 unsure, say N. 2040 2041config CIFS_DFS_UPCALL 2042 bool "DFS feature support (EXPERIMENTAL)" 2043 depends on CIFS_EXPERIMENTAL 2044 depends on KEYS 2045 help 2046 Enables an upcall mechanism for CIFS which contacts userspace 2047 helper utilities to provide server name resolution (host names to 2048 IP addresses) which is needed for implicit mounts of DFS junction 2049 points. If unsure, say N. 2050 2051config NCP_FS 2052 tristate "NCP file system support (to mount NetWare volumes)" 2053 depends on IPX!=n || INET 2054 help 2055 NCP (NetWare Core Protocol) is a protocol that runs over IPX and is 2056 used by Novell NetWare clients to talk to file servers. It is to 2057 IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you 2058 to mount NetWare file server volumes and to access them just like 2059 any other Unix directory. For details, please read the file 2060 <file:Documentation/filesystems/ncpfs.txt> in the kernel source and 2061 the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>. 2062 2063 You do not have to say Y here if you want your Linux box to act as a 2064 file *server* for Novell NetWare clients. 2065 2066 General information about how to connect Linux, Windows machines and 2067 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>. 2068 2069 To compile this as a module, choose M here: the module will be called 2070 ncpfs. Say N unless you are connected to a Novell network. 2071 2072source "fs/ncpfs/Kconfig" 2073 2074config CODA_FS 2075 tristate "Coda file system support (advanced network fs)" 2076 depends on INET 2077 help 2078 Coda is an advanced network file system, similar to NFS in that it 2079 enables you to mount file systems of a remote server and access them 2080 with regular Unix commands as if they were sitting on your hard 2081 disk. Coda has several advantages over NFS: support for 2082 disconnected operation (e.g. for laptops), read/write server 2083 replication, security model for authentication and encryption, 2084 persistent client caches and write back caching. 2085 2086 If you say Y here, your Linux box will be able to act as a Coda 2087 *client*. You will need user level code as well, both for the 2088 client and server. Servers are currently user level, i.e. they need 2089 no kernel support. Please read 2090 <file:Documentation/filesystems/coda.txt> and check out the Coda 2091 home page <http://www.coda.cs.cmu.edu/>. 2092 2093 To compile the coda client support as a module, choose M here: the 2094 module will be called coda. 2095 2096config CODA_FS_OLD_API 2097 bool "Use 96-bit Coda file identifiers" 2098 depends on CODA_FS 2099 help 2100 A new kernel-userspace API had to be introduced for Coda v6.0 2101 to support larger 128-bit file identifiers as needed by the 2102 new realms implementation. 2103 2104 However this new API is not backward compatible with older 2105 clients. If you really need to run the old Coda userspace 2106 cache manager then say Y. 2107 2108 For most cases you probably want to say N. 2109 2110config AFS_FS 2111 tristate "Andrew File System support (AFS) (EXPERIMENTAL)" 2112 depends on INET && EXPERIMENTAL 2113 select AF_RXRPC 2114 help 2115 If you say Y here, you will get an experimental Andrew File System 2116 driver. It currently only supports unsecured read-only AFS access. 2117 2118 See <file:Documentation/filesystems/afs.txt> for more information. 2119 2120 If unsure, say N. 2121 2122config AFS_DEBUG 2123 bool "AFS dynamic debugging" 2124 depends on AFS_FS 2125 help 2126 Say Y here to make runtime controllable debugging messages appear. 2127 2128 See <file:Documentation/filesystems/afs.txt> for more information. 2129 2130 If unsure, say N. 2131 2132config 9P_FS 2133 tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)" 2134 depends on INET && NET_9P && EXPERIMENTAL 2135 help 2136 If you say Y here, you will get experimental support for 2137 Plan 9 resource sharing via the 9P2000 protocol. 2138 2139 See <http://v9fs.sf.net> for more information. 2140 2141 If unsure, say N. 2142 2143endif # NETWORK_FILESYSTEMS 2144 2145if BLOCK 2146menu "Partition Types" 2147 2148source "fs/partitions/Kconfig" 2149 2150endmenu 2151endif 2152 2153source "fs/nls/Kconfig" 2154source "fs/dlm/Kconfig" 2155 2156endmenu 2157