linux/fs/Kconfig
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   1#
   2# File system configuration
   3#
   4
   5menu "File systems"
   6
   7if BLOCK
   8
   9source "fs/ext2/Kconfig"
  10source "fs/ext3/Kconfig"
  11source "fs/ext4/Kconfig"
  12
  13config FS_XIP
  14# execute in place
  15        bool
  16        depends on EXT2_FS_XIP
  17        default y
  18
  19source "fs/jbd/Kconfig"
  20source "fs/jbd2/Kconfig"
  21
  22config FS_MBCACHE
  23# Meta block cache for Extended Attributes (ext2/ext3/ext4)
  24        tristate
  25        default y if EXT2_FS=y && EXT2_FS_XATTR
  26        default y if EXT3_FS=y && EXT3_FS_XATTR
  27        default y if EXT4_FS=y && EXT4_FS_XATTR
  28        default m if EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4_FS_XATTR
  29
  30config REISERFS_FS
  31        tristate "Reiserfs support"
  32        help
  33          Stores not just filenames but the files themselves in a balanced
  34          tree.  Uses journalling.
  35
  36          Balanced trees are more efficient than traditional file system
  37          architectural foundations.
  38
  39          In general, ReiserFS is as fast as ext2, but is very efficient with
  40          large directories and small files.  Additional patches are needed
  41          for NFS and quotas, please see <http://www.namesys.com/> for links.
  42
  43          It is more easily extended to have features currently found in
  44          database and keyword search systems than block allocation based file
  45          systems are.  The next version will be so extended, and will support
  46          plugins consistent with our motto ``It takes more than a license to
  47          make source code open.''
  48
  49          Read <http://www.namesys.com/> to learn more about reiserfs.
  50
  51          Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com.
  52
  53          If you like it, you can pay us to add new features to it that you
  54          need, buy a support contract, or pay us to port it to another OS.
  55
  56config REISERFS_CHECK
  57        bool "Enable reiserfs debug mode"
  58        depends on REISERFS_FS
  59        help
  60          If you set this to Y, then ReiserFS will perform every check it can
  61          possibly imagine of its internal consistency throughout its
  62          operation.  It will also go substantially slower.  More than once we
  63          have forgotten that this was on, and then gone despondent over the
  64          latest benchmarks.:-) Use of this option allows our team to go all
  65          out in checking for consistency when debugging without fear of its
  66          effect on end users.  If you are on the verge of sending in a bug
  67          report, say Y and you might get a useful error message.  Almost
  68          everyone should say N.
  69
  70config REISERFS_PROC_INFO
  71        bool "Stats in /proc/fs/reiserfs"
  72        depends on REISERFS_FS && PROC_FS
  73        help
  74          Create under /proc/fs/reiserfs a hierarchy of files, displaying
  75          various ReiserFS statistics and internal data at the expense of
  76          making your kernel or module slightly larger (+8 KB). This also
  77          increases the amount of kernel memory required for each mount.
  78          Almost everyone but ReiserFS developers and people fine-tuning
  79          reiserfs or tracing problems should say N.
  80
  81config REISERFS_FS_XATTR
  82        bool "ReiserFS extended attributes"
  83        depends on REISERFS_FS
  84        help
  85          Extended attributes are name:value pairs associated with inodes by
  86          the kernel or by users (see the attr(5) manual page, or visit
  87          <http://acl.bestbits.at/> for details).
  88
  89          If unsure, say N.
  90
  91config REISERFS_FS_POSIX_ACL
  92        bool "ReiserFS POSIX Access Control Lists"
  93        depends on REISERFS_FS_XATTR
  94        select FS_POSIX_ACL
  95        help
  96          Posix Access Control Lists (ACLs) support permissions for users and
  97          groups beyond the owner/group/world scheme.
  98
  99          To learn more about Access Control Lists, visit the Posix ACLs for
 100          Linux website <http://acl.bestbits.at/>.
 101
 102          If you don't know what Access Control Lists are, say N
 103
 104config REISERFS_FS_SECURITY
 105        bool "ReiserFS Security Labels"
 106        depends on REISERFS_FS_XATTR
 107        help
 108          Security labels support alternative access control models
 109          implemented by security modules like SELinux.  This option
 110          enables an extended attribute handler for file security
 111          labels in the ReiserFS filesystem.
 112
 113          If you are not using a security module that requires using
 114          extended attributes for file security labels, say N.
 115
 116config JFS_FS
 117        tristate "JFS filesystem support"
 118        select NLS
 119        help
 120          This is a port of IBM's Journaled Filesystem .  More information is
 121          available in the file <file:Documentation/filesystems/jfs.txt>.
 122
 123          If you do not intend to use the JFS filesystem, say N.
 124
 125config JFS_POSIX_ACL
 126        bool "JFS POSIX Access Control Lists"
 127        depends on JFS_FS
 128        select FS_POSIX_ACL
 129        help
 130          Posix Access Control Lists (ACLs) support permissions for users and
 131          groups beyond the owner/group/world scheme.
 132
 133          To learn more about Access Control Lists, visit the Posix ACLs for
 134          Linux website <http://acl.bestbits.at/>.
 135
 136          If you don't know what Access Control Lists are, say N
 137
 138config JFS_SECURITY
 139        bool "JFS Security Labels"
 140        depends on JFS_FS
 141        help
 142          Security labels support alternative access control models
 143          implemented by security modules like SELinux.  This option
 144          enables an extended attribute handler for file security
 145          labels in the jfs filesystem.
 146
 147          If you are not using a security module that requires using
 148          extended attributes for file security labels, say N.
 149
 150config JFS_DEBUG
 151        bool "JFS debugging"
 152        depends on JFS_FS
 153        help
 154          If you are experiencing any problems with the JFS filesystem, say
 155          Y here.  This will result in additional debugging messages to be
 156          written to the system log.  Under normal circumstances, this
 157          results in very little overhead.
 158
 159config JFS_STATISTICS
 160        bool "JFS statistics"
 161        depends on JFS_FS
 162        help
 163          Enabling this option will cause statistics from the JFS file system
 164          to be made available to the user in the /proc/fs/jfs/ directory.
 165
 166config FS_POSIX_ACL
 167# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs/nfs4)
 168#
 169# NOTE: you can implement Posix ACLs without these helpers (XFS does).
 170#       Never use this symbol for ifdefs.
 171#
 172        bool
 173        default n
 174
 175config FILE_LOCKING
 176        bool "Enable POSIX file locking API" if EMBEDDED
 177        default y
 178        help
 179          This option enables standard file locking support, required
 180          for filesystems like NFS and for the flock() system
 181          call. Disabling this option saves about 11k.
 182
 183source "fs/xfs/Kconfig"
 184source "fs/gfs2/Kconfig"
 185
 186config OCFS2_FS
 187        tristate "OCFS2 file system support"
 188        depends on NET && SYSFS
 189        select CONFIGFS_FS
 190        select JBD2
 191        select CRC32
 192        help
 193          OCFS2 is a general purpose extent based shared disk cluster file
 194          system with many similarities to ext3. It supports 64 bit inode
 195          numbers, and has automatically extending metadata groups which may
 196          also make it attractive for non-clustered use.
 197
 198          You'll want to install the ocfs2-tools package in order to at least
 199          get "mount.ocfs2".
 200
 201          Project web page:    http://oss.oracle.com/projects/ocfs2
 202          Tools web page:      http://oss.oracle.com/projects/ocfs2-tools
 203          OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/
 204
 205          For more information on OCFS2, see the file
 206          <file:Documentation/filesystems/ocfs2.txt>.
 207
 208config OCFS2_FS_O2CB
 209        tristate "O2CB Kernelspace Clustering"
 210        depends on OCFS2_FS
 211        default y
 212        help
 213          OCFS2 includes a simple kernelspace clustering package, the OCFS2
 214          Cluster Base.  It only requires a very small userspace component
 215          to configure it. This comes with the standard ocfs2-tools package.
 216          O2CB is limited to maintaining a cluster for OCFS2 file systems.
 217          It cannot manage any other cluster applications.
 218
 219          It is always safe to say Y here, as the clustering method is
 220          run-time selectable.
 221
 222config OCFS2_FS_USERSPACE_CLUSTER
 223        tristate "OCFS2 Userspace Clustering"
 224        depends on OCFS2_FS && DLM
 225        default y
 226        help
 227          This option will allow OCFS2 to use userspace clustering services
 228          in conjunction with the DLM in fs/dlm.  If you are using a
 229          userspace cluster manager, say Y here.
 230
 231          It is safe to say Y, as the clustering method is run-time
 232          selectable.
 233
 234config OCFS2_FS_STATS
 235        bool "OCFS2 statistics"
 236        depends on OCFS2_FS
 237        default y
 238        help
 239          This option allows some fs statistics to be captured. Enabling
 240          this option may increase the memory consumption.
 241
 242config OCFS2_DEBUG_MASKLOG
 243        bool "OCFS2 logging support"
 244        depends on OCFS2_FS
 245        default y
 246        help
 247          The ocfs2 filesystem has an extensive logging system.  The system
 248          allows selection of events to log via files in /sys/o2cb/logmask/.
 249          This option will enlarge your kernel, but it allows debugging of
 250          ocfs2 filesystem issues.
 251
 252config OCFS2_DEBUG_FS
 253        bool "OCFS2 expensive checks"
 254        depends on OCFS2_FS
 255        default n
 256        help
 257          This option will enable expensive consistency checks. Enable
 258          this option for debugging only as it is likely to decrease
 259          performance of the filesystem.
 260
 261config OCFS2_COMPAT_JBD
 262        bool "Use JBD for compatibility"
 263        depends on OCFS2_FS
 264        default n
 265        select JBD
 266        help
 267          The ocfs2 filesystem now uses JBD2 for its journalling.  JBD2
 268          is backwards compatible with JBD.  It is safe to say N here.
 269          However, if you really want to use the original JBD, say Y here.
 270
 271endif # BLOCK
 272
 273config DNOTIFY
 274        bool "Dnotify support"
 275        default y
 276        help
 277          Dnotify is a directory-based per-fd file change notification system
 278          that uses signals to communicate events to user-space.  There exist
 279          superior alternatives, but some applications may still rely on
 280          dnotify.
 281
 282          If unsure, say Y.
 283
 284config INOTIFY
 285        bool "Inotify file change notification support"
 286        default y
 287        ---help---
 288          Say Y here to enable inotify support.  Inotify is a file change
 289          notification system and a replacement for dnotify.  Inotify fixes
 290          numerous shortcomings in dnotify and introduces several new features
 291          including multiple file events, one-shot support, and unmount
 292          notification.
 293
 294          For more information, see <file:Documentation/filesystems/inotify.txt>
 295
 296          If unsure, say Y.
 297
 298config INOTIFY_USER
 299        bool "Inotify support for userspace"
 300        depends on INOTIFY
 301        default y
 302        ---help---
 303          Say Y here to enable inotify support for userspace, including the
 304          associated system calls.  Inotify allows monitoring of both files and
 305          directories via a single open fd.  Events are read from the file
 306          descriptor, which is also select()- and poll()-able.
 307
 308          For more information, see <file:Documentation/filesystems/inotify.txt>
 309
 310          If unsure, say Y.
 311
 312config QUOTA
 313        bool "Quota support"
 314        help
 315          If you say Y here, you will be able to set per user limits for disk
 316          usage (also called disk quotas). Currently, it works for the
 317          ext2, ext3, and reiserfs file system. ext3 also supports journalled
 318          quotas for which you don't need to run quotacheck(8) after an unclean
 319          shutdown.
 320          For further details, read the Quota mini-HOWTO, available from
 321          <http://www.tldp.org/docs.html#howto>, or the documentation provided
 322          with the quota tools. Probably the quota support is only useful for
 323          multi user systems. If unsure, say N.
 324
 325config QUOTA_NETLINK_INTERFACE
 326        bool "Report quota messages through netlink interface"
 327        depends on QUOTA && NET
 328        help
 329          If you say Y here, quota warnings (about exceeding softlimit, reaching
 330          hardlimit, etc.) will be reported through netlink interface. If unsure,
 331          say Y.
 332
 333config PRINT_QUOTA_WARNING
 334        bool "Print quota warnings to console (OBSOLETE)"
 335        depends on QUOTA
 336        default y
 337        help
 338          If you say Y here, quota warnings (about exceeding softlimit, reaching
 339          hardlimit, etc.) will be printed to the process' controlling terminal.
 340          Note that this behavior is currently deprecated and may go away in
 341          future. Please use notification via netlink socket instead.
 342
 343config QFMT_V1
 344        tristate "Old quota format support"
 345        depends on QUOTA
 346        help
 347          This quota format was (is) used by kernels earlier than 2.4.22. If
 348          you have quota working and you don't want to convert to new quota
 349          format say Y here.
 350
 351config QFMT_V2
 352        tristate "Quota format v2 support"
 353        depends on QUOTA
 354        help
 355          This quota format allows using quotas with 32-bit UIDs/GIDs. If you
 356          need this functionality say Y here.
 357
 358config QUOTACTL
 359        bool
 360        depends on XFS_QUOTA || QUOTA
 361        default y
 362
 363config AUTOFS_FS
 364        tristate "Kernel automounter support"
 365        help
 366          The automounter is a tool to automatically mount remote file systems
 367          on demand. This implementation is partially kernel-based to reduce
 368          overhead in the already-mounted case; this is unlike the BSD
 369          automounter (amd), which is a pure user space daemon.
 370
 371          To use the automounter you need the user-space tools from the autofs
 372          package; you can find the location in <file:Documentation/Changes>.
 373          You also want to answer Y to "NFS file system support", below.
 374
 375          If you want to use the newer version of the automounter with more
 376          features, say N here and say Y to "Kernel automounter v4 support",
 377          below.
 378
 379          To compile this support as a module, choose M here: the module will be
 380          called autofs.
 381
 382          If you are not a part of a fairly large, distributed network, you
 383          probably do not need an automounter, and can say N here.
 384
 385config AUTOFS4_FS
 386        tristate "Kernel automounter version 4 support (also supports v3)"
 387        help
 388          The automounter is a tool to automatically mount remote file systems
 389          on demand. This implementation is partially kernel-based to reduce
 390          overhead in the already-mounted case; this is unlike the BSD
 391          automounter (amd), which is a pure user space daemon.
 392
 393          To use the automounter you need the user-space tools from
 394          <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
 395          want to answer Y to "NFS file system support", below.
 396
 397          To compile this support as a module, choose M here: the module will be
 398          called autofs4.  You will need to add "alias autofs autofs4" to your
 399          modules configuration file.
 400
 401          If you are not a part of a fairly large, distributed network or
 402          don't have a laptop which needs to dynamically reconfigure to the
 403          local network, you probably do not need an automounter, and can say
 404          N here.
 405
 406config FUSE_FS
 407        tristate "FUSE (Filesystem in Userspace) support"
 408        help
 409          With FUSE it is possible to implement a fully functional filesystem
 410          in a userspace program.
 411
 412          There's also companion library: libfuse.  This library along with
 413          utilities is available from the FUSE homepage:
 414          <http://fuse.sourceforge.net/>
 415
 416          See <file:Documentation/filesystems/fuse.txt> for more information.
 417          See <file:Documentation/Changes> for needed library/utility version.
 418
 419          If you want to develop a userspace FS, or if you want to use
 420          a filesystem based on FUSE, answer Y or M.
 421
 422config GENERIC_ACL
 423        bool
 424        select FS_POSIX_ACL
 425
 426if BLOCK
 427menu "CD-ROM/DVD Filesystems"
 428
 429config ISO9660_FS
 430        tristate "ISO 9660 CDROM file system support"
 431        help
 432          This is the standard file system used on CD-ROMs.  It was previously
 433          known as "High Sierra File System" and is called "hsfs" on other
 434          Unix systems.  The so-called Rock-Ridge extensions which allow for
 435          long Unix filenames and symbolic links are also supported by this
 436          driver.  If you have a CD-ROM drive and want to do more with it than
 437          just listen to audio CDs and watch its LEDs, say Y (and read
 438          <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO,
 439          available from <http://www.tldp.org/docs.html#howto>), thereby
 440          enlarging your kernel by about 27 KB; otherwise say N.
 441
 442          To compile this file system support as a module, choose M here: the
 443          module will be called isofs.
 444
 445config JOLIET
 446        bool "Microsoft Joliet CDROM extensions"
 447        depends on ISO9660_FS
 448        select NLS
 449        help
 450          Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
 451          which allows for long filenames in unicode format (unicode is the
 452          new 16 bit character code, successor to ASCII, which encodes the
 453          characters of almost all languages of the world; see
 454          <http://www.unicode.org/> for more information).  Say Y here if you
 455          want to be able to read Joliet CD-ROMs under Linux.
 456
 457config ZISOFS
 458        bool "Transparent decompression extension"
 459        depends on ISO9660_FS
 460        select ZLIB_INFLATE
 461        help
 462          This is a Linux-specific extension to RockRidge which lets you store
 463          data in compressed form on a CD-ROM and have it transparently
 464          decompressed when the CD-ROM is accessed.  See
 465          <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
 466          necessary to create such a filesystem.  Say Y here if you want to be
 467          able to read such compressed CD-ROMs.
 468
 469config UDF_FS
 470        tristate "UDF file system support"
 471        select CRC_ITU_T
 472        help
 473          This is the new file system used on some CD-ROMs and DVDs. Say Y if
 474          you intend to mount DVD discs or CDRW's written in packet mode, or
 475          if written to by other UDF utilities, such as DirectCD.
 476          Please read <file:Documentation/filesystems/udf.txt>.
 477
 478          To compile this file system support as a module, choose M here: the
 479          module will be called udf.
 480
 481          If unsure, say N.
 482
 483config UDF_NLS
 484        bool
 485        default y
 486        depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
 487
 488endmenu
 489endif # BLOCK
 490
 491if BLOCK
 492menu "DOS/FAT/NT Filesystems"
 493
 494config FAT_FS
 495        tristate
 496        select NLS
 497        help
 498          If you want to use one of the FAT-based file systems (the MS-DOS and
 499          VFAT (Windows 95) file systems), then you must say Y or M here
 500          to include FAT support. You will then be able to mount partitions or
 501          diskettes with FAT-based file systems and transparently access the
 502          files on them, i.e. MSDOS files will look and behave just like all
 503          other Unix files.
 504
 505          This FAT support is not a file system in itself, it only provides
 506          the foundation for the other file systems. You will have to say Y or
 507          M to at least one of "MSDOS fs support" or "VFAT fs support" in
 508          order to make use of it.
 509
 510          Another way to read and write MSDOS floppies and hard drive
 511          partitions from within Linux (but not transparently) is with the
 512          mtools ("man mtools") program suite. You don't need to say Y here in
 513          order to do that.
 514
 515          If you need to move large files on floppies between a DOS and a
 516          Linux box, say Y here, mount the floppy under Linux with an MSDOS
 517          file system and use GNU tar's M option. GNU tar is a program
 518          available for Unix and DOS ("man tar" or "info tar").
 519
 520          The FAT support will enlarge your kernel by about 37 KB. If unsure,
 521          say Y.
 522
 523          To compile this as a module, choose M here: the module will be called
 524          fat.  Note that if you compile the FAT support as a module, you
 525          cannot compile any of the FAT-based file systems into the kernel
 526          -- they will have to be modules as well.
 527
 528config MSDOS_FS
 529        tristate "MSDOS fs support"
 530        select FAT_FS
 531        help
 532          This allows you to mount MSDOS partitions of your hard drive (unless
 533          they are compressed; to access compressed MSDOS partitions under
 534          Linux, you can either use the DOS emulator DOSEMU, described in the
 535          DOSEMU-HOWTO, available from
 536          <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
 537          <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
 538          intend to use dosemu with a non-compressed MSDOS partition, say Y
 539          here) and MSDOS floppies. This means that file access becomes
 540          transparent, i.e. the MSDOS files look and behave just like all
 541          other Unix files.
 542
 543          If you have Windows 95 or Windows NT installed on your MSDOS
 544          partitions, you should use the VFAT file system (say Y to "VFAT fs
 545          support" below), or you will not be able to see the long filenames
 546          generated by Windows 95 / Windows NT.
 547
 548          This option will enlarge your kernel by about 7 KB. If unsure,
 549          answer Y. This will only work if you said Y to "DOS FAT fs support"
 550          as well. To compile this as a module, choose M here: the module will
 551          be called msdos.
 552
 553config VFAT_FS
 554        tristate "VFAT (Windows-95) fs support"
 555        select FAT_FS
 556        help
 557          This option provides support for normal Windows file systems with
 558          long filenames.  That includes non-compressed FAT-based file systems
 559          used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
 560          programs from the mtools package.
 561
 562          The VFAT support enlarges your kernel by about 10 KB and it only
 563          works if you said Y to the "DOS FAT fs support" above.  Please read
 564          the file <file:Documentation/filesystems/vfat.txt> for details.  If
 565          unsure, say Y.
 566
 567          To compile this as a module, choose M here: the module will be called
 568          vfat.
 569
 570config FAT_DEFAULT_CODEPAGE
 571        int "Default codepage for FAT"
 572        depends on MSDOS_FS || VFAT_FS
 573        default 437
 574        help
 575          This option should be set to the codepage of your FAT filesystems.
 576          It can be overridden with the "codepage" mount option.
 577          See <file:Documentation/filesystems/vfat.txt> for more information.
 578
 579config FAT_DEFAULT_IOCHARSET
 580        string "Default iocharset for FAT"
 581        depends on VFAT_FS
 582        default "iso8859-1"
 583        help
 584          Set this to the default input/output character set you'd
 585          like FAT to use. It should probably match the character set
 586          that most of your FAT filesystems use, and can be overridden
 587          with the "iocharset" mount option for FAT filesystems.
 588          Note that "utf8" is not recommended for FAT filesystems.
 589          If unsure, you shouldn't set "utf8" here.
 590          See <file:Documentation/filesystems/vfat.txt> for more information.
 591
 592config NTFS_FS
 593        tristate "NTFS file system support"
 594        select NLS
 595        help
 596          NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
 597
 598          Saying Y or M here enables read support.  There is partial, but
 599          safe, write support available.  For write support you must also
 600          say Y to "NTFS write support" below.
 601
 602          There are also a number of user-space tools available, called
 603          ntfsprogs.  These include ntfsundelete and ntfsresize, that work
 604          without NTFS support enabled in the kernel.
 605
 606          This is a rewrite from scratch of Linux NTFS support and replaced
 607          the old NTFS code starting with Linux 2.5.11.  A backport to
 608          the Linux 2.4 kernel series is separately available as a patch
 609          from the project web site.
 610
 611          For more information see <file:Documentation/filesystems/ntfs.txt>
 612          and <http://www.linux-ntfs.org/>.
 613
 614          To compile this file system support as a module, choose M here: the
 615          module will be called ntfs.
 616
 617          If you are not using Windows NT, 2000, XP or 2003 in addition to
 618          Linux on your computer it is safe to say N.
 619
 620config NTFS_DEBUG
 621        bool "NTFS debugging support"
 622        depends on NTFS_FS
 623        help
 624          If you are experiencing any problems with the NTFS file system, say
 625          Y here.  This will result in additional consistency checks to be
 626          performed by the driver as well as additional debugging messages to
 627          be written to the system log.  Note that debugging messages are
 628          disabled by default.  To enable them, supply the option debug_msgs=1
 629          at the kernel command line when booting the kernel or as an option
 630          to insmod when loading the ntfs module.  Once the driver is active,
 631          you can enable debugging messages by doing (as root):
 632          echo 1 > /proc/sys/fs/ntfs-debug
 633          Replacing the "1" with "0" would disable debug messages.
 634
 635          If you leave debugging messages disabled, this results in little
 636          overhead, but enabling debug messages results in very significant
 637          slowdown of the system.
 638
 639          When reporting bugs, please try to have available a full dump of
 640          debugging messages while the misbehaviour was occurring.
 641
 642config NTFS_RW
 643        bool "NTFS write support"
 644        depends on NTFS_FS
 645        help
 646          This enables the partial, but safe, write support in the NTFS driver.
 647
 648          The only supported operation is overwriting existing files, without
 649          changing the file length.  No file or directory creation, deletion or
 650          renaming is possible.  Note only non-resident files can be written to
 651          so you may find that some very small files (<500 bytes or so) cannot
 652          be written to.
 653
 654          While we cannot guarantee that it will not damage any data, we have
 655          so far not received a single report where the driver would have
 656          damaged someones data so we assume it is perfectly safe to use.
 657
 658          Note:  While write support is safe in this version (a rewrite from
 659          scratch of the NTFS support), it should be noted that the old NTFS
 660          write support, included in Linux 2.5.10 and before (since 1997),
 661          is not safe.
 662
 663          This is currently useful with TopologiLinux.  TopologiLinux is run
 664          on top of any DOS/Microsoft Windows system without partitioning your
 665          hard disk.  Unlike other Linux distributions TopologiLinux does not
 666          need its own partition.  For more information see
 667          <http://topologi-linux.sourceforge.net/>
 668
 669          It is perfectly safe to say N here.
 670
 671endmenu
 672endif # BLOCK
 673
 674menu "Pseudo filesystems"
 675
 676source "fs/proc/Kconfig"
 677
 678config SYSFS
 679        bool "sysfs file system support" if EMBEDDED
 680        default y
 681        help
 682        The sysfs filesystem is a virtual filesystem that the kernel uses to
 683        export internal kernel objects, their attributes, and their
 684        relationships to one another.
 685
 686        Users can use sysfs to ascertain useful information about the running
 687        kernel, such as the devices the kernel has discovered on each bus and
 688        which driver each is bound to. sysfs can also be used to tune devices
 689        and other kernel subsystems.
 690
 691        Some system agents rely on the information in sysfs to operate.
 692        /sbin/hotplug uses device and object attributes in sysfs to assist in
 693        delegating policy decisions, like persistently naming devices.
 694
 695        sysfs is currently used by the block subsystem to mount the root
 696        partition.  If sysfs is disabled you must specify the boot device on
 697        the kernel boot command line via its major and minor numbers.  For
 698        example, "root=03:01" for /dev/hda1.
 699
 700        Designers of embedded systems may wish to say N here to conserve space.
 701
 702config TMPFS
 703        bool "Virtual memory file system support (former shm fs)"
 704        help
 705          Tmpfs is a file system which keeps all files in virtual memory.
 706
 707          Everything in tmpfs is temporary in the sense that no files will be
 708          created on your hard drive. The files live in memory and swap
 709          space. If you unmount a tmpfs instance, everything stored therein is
 710          lost.
 711
 712          See <file:Documentation/filesystems/tmpfs.txt> for details.
 713
 714config TMPFS_POSIX_ACL
 715        bool "Tmpfs POSIX Access Control Lists"
 716        depends on TMPFS
 717        select GENERIC_ACL
 718        help
 719          POSIX Access Control Lists (ACLs) support permissions for users and
 720          groups beyond the owner/group/world scheme.
 721
 722          To learn more about Access Control Lists, visit the POSIX ACLs for
 723          Linux website <http://acl.bestbits.at/>.
 724
 725          If you don't know what Access Control Lists are, say N.
 726
 727config HUGETLBFS
 728        bool "HugeTLB file system support"
 729        depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || \
 730                   (S390 && 64BIT) || BROKEN
 731        help
 732          hugetlbfs is a filesystem backing for HugeTLB pages, based on
 733          ramfs. For architectures that support it, say Y here and read
 734          <file:Documentation/vm/hugetlbpage.txt> for details.
 735
 736          If unsure, say N.
 737
 738config HUGETLB_PAGE
 739        def_bool HUGETLBFS
 740
 741config CONFIGFS_FS
 742        tristate "Userspace-driven configuration filesystem"
 743        depends on SYSFS
 744        help
 745          configfs is a ram-based filesystem that provides the converse
 746          of sysfs's functionality. Where sysfs is a filesystem-based
 747          view of kernel objects, configfs is a filesystem-based manager
 748          of kernel objects, or config_items.
 749
 750          Both sysfs and configfs can and should exist together on the
 751          same system. One is not a replacement for the other.
 752
 753endmenu
 754
 755menu "Miscellaneous filesystems"
 756
 757config ADFS_FS
 758        tristate "ADFS file system support (EXPERIMENTAL)"
 759        depends on BLOCK && EXPERIMENTAL
 760        help
 761          The Acorn Disc Filing System is the standard file system of the
 762          RiscOS operating system which runs on Acorn's ARM-based Risc PC
 763          systems and the Acorn Archimedes range of machines. If you say Y
 764          here, Linux will be able to read from ADFS partitions on hard drives
 765          and from ADFS-formatted floppy discs. If you also want to be able to
 766          write to those devices, say Y to "ADFS write support" below.
 767
 768          The ADFS partition should be the first partition (i.e.,
 769          /dev/[hs]d?1) on each of your drives. Please read the file
 770          <file:Documentation/filesystems/adfs.txt> for further details.
 771
 772          To compile this code as a module, choose M here: the module will be
 773          called adfs.
 774
 775          If unsure, say N.
 776
 777config ADFS_FS_RW
 778        bool "ADFS write support (DANGEROUS)"
 779        depends on ADFS_FS
 780        help
 781          If you say Y here, you will be able to write to ADFS partitions on
 782          hard drives and ADFS-formatted floppy disks. This is experimental
 783          codes, so if you're unsure, say N.
 784
 785config AFFS_FS
 786        tristate "Amiga FFS file system support (EXPERIMENTAL)"
 787        depends on BLOCK && EXPERIMENTAL
 788        help
 789          The Fast File System (FFS) is the common file system used on hard
 790          disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20).  Say Y
 791          if you want to be able to read and write files from and to an Amiga
 792          FFS partition on your hard drive.  Amiga floppies however cannot be
 793          read with this driver due to an incompatibility of the floppy
 794          controller used in an Amiga and the standard floppy controller in
 795          PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
 796          and <file:fs/affs/Changes>.
 797
 798          With this driver you can also mount disk files used by Bernd
 799          Schmidt's Un*X Amiga Emulator
 800          (<http://www.freiburg.linux.de/~uae/>).
 801          If you want to do this, you will also need to say Y or M to "Loop
 802          device support", above.
 803
 804          To compile this file system support as a module, choose M here: the
 805          module will be called affs.  If unsure, say N.
 806
 807config ECRYPT_FS
 808        tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
 809        depends on EXPERIMENTAL && KEYS && CRYPTO && NET
 810        help
 811          Encrypted filesystem that operates on the VFS layer.  See
 812          <file:Documentation/filesystems/ecryptfs.txt> to learn more about
 813          eCryptfs.  Userspace components are required and can be
 814          obtained from <http://ecryptfs.sf.net>.
 815
 816          To compile this file system support as a module, choose M here: the
 817          module will be called ecryptfs.
 818
 819config HFS_FS
 820        tristate "Apple Macintosh file system support (EXPERIMENTAL)"
 821        depends on BLOCK && EXPERIMENTAL
 822        select NLS
 823        help
 824          If you say Y here, you will be able to mount Macintosh-formatted
 825          floppy disks and hard drive partitions with full read-write access.
 826          Please read <file:Documentation/filesystems/hfs.txt> to learn about
 827          the available mount options.
 828
 829          To compile this file system support as a module, choose M here: the
 830          module will be called hfs.
 831
 832config HFSPLUS_FS
 833        tristate "Apple Extended HFS file system support"
 834        depends on BLOCK
 835        select NLS
 836        select NLS_UTF8
 837        help
 838          If you say Y here, you will be able to mount extended format
 839          Macintosh-formatted hard drive partitions with full read-write access.
 840
 841          This file system is often called HFS+ and was introduced with
 842          MacOS 8. It includes all Mac specific filesystem data such as
 843          data forks and creator codes, but it also has several UNIX
 844          style features such as file ownership and permissions.
 845
 846config BEFS_FS
 847        tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
 848        depends on BLOCK && EXPERIMENTAL
 849        select NLS
 850        help
 851          The BeOS File System (BeFS) is the native file system of Be, Inc's
 852          BeOS. Notable features include support for arbitrary attributes
 853          on files and directories, and database-like indices on selected
 854          attributes. (Also note that this driver doesn't make those features
 855          available at this time). It is a 64 bit filesystem, so it supports
 856          extremely large volumes and files.
 857
 858          If you use this filesystem, you should also say Y to at least one
 859          of the NLS (native language support) options below.
 860
 861          If you don't know what this is about, say N.
 862
 863          To compile this as a module, choose M here: the module will be
 864          called befs.
 865
 866config BEFS_DEBUG
 867        bool "Debug BeFS"
 868        depends on BEFS_FS
 869        help
 870          If you say Y here, you can use the 'debug' mount option to enable
 871          debugging output from the driver.
 872
 873config BFS_FS
 874        tristate "BFS file system support (EXPERIMENTAL)"
 875        depends on BLOCK && EXPERIMENTAL
 876        help
 877          Boot File System (BFS) is a file system used under SCO UnixWare to
 878          allow the bootloader access to the kernel image and other important
 879          files during the boot process.  It is usually mounted under /stand
 880          and corresponds to the slice marked as "STAND" in the UnixWare
 881          partition.  You should say Y if you want to read or write the files
 882          on your /stand slice from within Linux.  You then also need to say Y
 883          to "UnixWare slices support", below.  More information about the BFS
 884          file system is contained in the file
 885          <file:Documentation/filesystems/bfs.txt>.
 886
 887          If you don't know what this is about, say N.
 888
 889          To compile this as a module, choose M here: the module will be called
 890          bfs.  Note that the file system of your root partition (the one
 891          containing the directory /) cannot be compiled as a module.
 892
 893
 894
 895config EFS_FS
 896        tristate "EFS file system support (read only) (EXPERIMENTAL)"
 897        depends on BLOCK && EXPERIMENTAL
 898        help
 899          EFS is an older file system used for non-ISO9660 CD-ROMs and hard
 900          disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
 901          uses the XFS file system for hard disk partitions however).
 902
 903          This implementation only offers read-only access. If you don't know
 904          what all this is about, it's safe to say N. For more information
 905          about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
 906
 907          To compile the EFS file system support as a module, choose M here: the
 908          module will be called efs.
 909
 910source "fs/jffs2/Kconfig"
 911# UBIFS File system configuration
 912source "fs/ubifs/Kconfig"
 913
 914config CRAMFS
 915        tristate "Compressed ROM file system support (cramfs)"
 916        depends on BLOCK
 917        select ZLIB_INFLATE
 918        help
 919          Saying Y here includes support for CramFs (Compressed ROM File
 920          System).  CramFs is designed to be a simple, small, and compressed
 921          file system for ROM based embedded systems.  CramFs is read-only,
 922          limited to 256MB file systems (with 16MB files), and doesn't support
 923          16/32 bits uid/gid, hard links and timestamps.
 924
 925          See <file:Documentation/filesystems/cramfs.txt> and
 926          <file:fs/cramfs/README> for further information.
 927
 928          To compile this as a module, choose M here: the module will be called
 929          cramfs.  Note that the root file system (the one containing the
 930          directory /) cannot be compiled as a module.
 931
 932          If unsure, say N.
 933
 934config VXFS_FS
 935        tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
 936        depends on BLOCK
 937        help
 938          FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
 939          file system format.  VERITAS VxFS(TM) is the standard file system
 940          of SCO UnixWare (and possibly others) and optionally available
 941          for Sunsoft Solaris, HP-UX and many other operating systems.
 942          Currently only readonly access is supported.
 943
 944          NOTE: the file system type as used by mount(1), mount(2) and
 945          fstab(5) is 'vxfs' as it describes the file system format, not
 946          the actual driver.
 947
 948          To compile this as a module, choose M here: the module will be
 949          called freevxfs.  If unsure, say N.
 950
 951config MINIX_FS
 952        tristate "Minix file system support"
 953        depends on BLOCK
 954        help
 955          Minix is a simple operating system used in many classes about OS's.
 956          The minix file system (method to organize files on a hard disk
 957          partition or a floppy disk) was the original file system for Linux,
 958          but has been superseded by the second extended file system ext2fs.
 959          You don't want to use the minix file system on your hard disk
 960          because of certain built-in restrictions, but it is sometimes found
 961          on older Linux floppy disks.  This option will enlarge your kernel
 962          by about 28 KB. If unsure, say N.
 963
 964          To compile this file system support as a module, choose M here: the
 965          module will be called minix.  Note that the file system of your root
 966          partition (the one containing the directory /) cannot be compiled as
 967          a module.
 968
 969config OMFS_FS
 970        tristate "SonicBlue Optimized MPEG File System support"
 971        depends on BLOCK
 972        select CRC_ITU_T
 973        help
 974          This is the proprietary file system used by the Rio Karma music
 975          player and ReplayTV DVR.  Despite the name, this filesystem is not
 976          more efficient than a standard FS for MPEG files, in fact likely
 977          the opposite is true.  Say Y if you have either of these devices
 978          and wish to mount its disk.
 979
 980          To compile this file system support as a module, choose M here: the
 981          module will be called omfs.  If unsure, say N.
 982
 983config HPFS_FS
 984        tristate "OS/2 HPFS file system support"
 985        depends on BLOCK
 986        help
 987          OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
 988          is the file system used for organizing files on OS/2 hard disk
 989          partitions. Say Y if you want to be able to read files from and
 990          write files to an OS/2 HPFS partition on your hard drive. OS/2
 991          floppies however are in regular MSDOS format, so you don't need this
 992          option in order to be able to read them. Read
 993          <file:Documentation/filesystems/hpfs.txt>.
 994
 995          To compile this file system support as a module, choose M here: the
 996          module will be called hpfs.  If unsure, say N.
 997
 998
 999config QNX4FS_FS
1000        tristate "QNX4 file system support (read only)"
1001        depends on BLOCK
1002        help
1003          This is the file system used by the real-time operating systems
1004          QNX 4 and QNX 6 (the latter is also called QNX RTP).
1005          Further information is available at <http://www.qnx.com/>.
1006          Say Y if you intend to mount QNX hard disks or floppies.
1007          Unless you say Y to "QNX4FS read-write support" below, you will
1008          only be able to read these file systems.
1009
1010          To compile this file system support as a module, choose M here: the
1011          module will be called qnx4.
1012
1013          If you don't know whether you need it, then you don't need it:
1014          answer N.
1015
1016config QNX4FS_RW
1017        bool "QNX4FS write support (DANGEROUS)"
1018        depends on QNX4FS_FS && EXPERIMENTAL && BROKEN
1019        help
1020          Say Y if you want to test write support for QNX4 file systems.
1021
1022          It's currently broken, so for now:
1023          answer N.
1024
1025config ROMFS_FS
1026        tristate "ROM file system support"
1027        depends on BLOCK
1028        ---help---
1029          This is a very small read-only file system mainly intended for
1030          initial ram disks of installation disks, but it could be used for
1031          other read-only media as well.  Read
1032          <file:Documentation/filesystems/romfs.txt> for details.
1033
1034          To compile this file system support as a module, choose M here: the
1035          module will be called romfs.  Note that the file system of your
1036          root partition (the one containing the directory /) cannot be a
1037          module.
1038
1039          If you don't know whether you need it, then you don't need it:
1040          answer N.
1041
1042
1043config SYSV_FS
1044        tristate "System V/Xenix/V7/Coherent file system support"
1045        depends on BLOCK
1046        help
1047          SCO, Xenix and Coherent are commercial Unix systems for Intel
1048          machines, and Version 7 was used on the DEC PDP-11. Saying Y
1049          here would allow you to read from their floppies and hard disk
1050          partitions.
1051
1052          If you have floppies or hard disk partitions like that, it is likely
1053          that they contain binaries from those other Unix systems; in order
1054          to run these binaries, you will want to install linux-abi which is
1055          a set of kernel modules that lets you run SCO, Xenix, Wyse,
1056          UnixWare, Dell Unix and System V programs under Linux.  It is
1057          available via FTP (user: ftp) from
1058          <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
1059          NOTE: that will work only for binaries from Intel-based systems;
1060          PDP ones will have to wait until somebody ports Linux to -11 ;-)
1061
1062          If you only intend to mount files from some other Unix over the
1063          network using NFS, you don't need the System V file system support
1064          (but you need NFS file system support obviously).
1065
1066          Note that this option is generally not needed for floppies, since a
1067          good portable way to transport files and directories between unixes
1068          (and even other operating systems) is given by the tar program ("man
1069          tar" or preferably "info tar").  Note also that this option has
1070          nothing whatsoever to do with the option "System V IPC". Read about
1071          the System V file system in
1072          <file:Documentation/filesystems/sysv-fs.txt>.
1073          Saying Y here will enlarge your kernel by about 27 KB.
1074
1075          To compile this as a module, choose M here: the module will be called
1076          sysv.
1077
1078          If you haven't heard about all of this before, it's safe to say N.
1079
1080
1081config UFS_FS
1082        tristate "UFS file system support (read only)"
1083        depends on BLOCK
1084        help
1085          BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
1086          OpenBSD and NeXTstep) use a file system called UFS. Some System V
1087          Unixes can create and mount hard disk partitions and diskettes using
1088          this file system as well. Saying Y here will allow you to read from
1089          these partitions; if you also want to write to them, say Y to the
1090          experimental "UFS file system write support", below. Please read the
1091          file <file:Documentation/filesystems/ufs.txt> for more information.
1092
1093          The recently released UFS2 variant (used in FreeBSD 5.x) is
1094          READ-ONLY supported.
1095
1096          Note that this option is generally not needed for floppies, since a
1097          good portable way to transport files and directories between unixes
1098          (and even other operating systems) is given by the tar program ("man
1099          tar" or preferably "info tar").
1100
1101          When accessing NeXTstep files, you may need to convert them from the
1102          NeXT character set to the Latin1 character set; use the program
1103          recode ("info recode") for this purpose.
1104
1105          To compile the UFS file system support as a module, choose M here: the
1106          module will be called ufs.
1107
1108          If you haven't heard about all of this before, it's safe to say N.
1109
1110config UFS_FS_WRITE
1111        bool "UFS file system write support (DANGEROUS)"
1112        depends on UFS_FS && EXPERIMENTAL
1113        help
1114          Say Y here if you want to try writing to UFS partitions. This is
1115          experimental, so you should back up your UFS partitions beforehand.
1116
1117config UFS_DEBUG
1118        bool "UFS debugging"
1119        depends on UFS_FS
1120        help
1121          If you are experiencing any problems with the UFS filesystem, say
1122          Y here.  This will result in _many_ additional debugging messages to be
1123          written to the system log.
1124
1125endmenu
1126
1127menuconfig NETWORK_FILESYSTEMS
1128        bool "Network File Systems"
1129        default y
1130        depends on NET
1131        ---help---
1132          Say Y here to get to see options for network filesystems and
1133          filesystem-related networking code, such as NFS daemon and
1134          RPCSEC security modules.
1135
1136          This option alone does not add any kernel code.
1137
1138          If you say N, all options in this submenu will be skipped and
1139          disabled; if unsure, say Y here.
1140
1141if NETWORK_FILESYSTEMS
1142
1143config NFS_FS
1144        tristate "NFS client support"
1145        depends on INET
1146        select LOCKD
1147        select SUNRPC
1148        select NFS_ACL_SUPPORT if NFS_V3_ACL
1149        help
1150          Choose Y here if you want to access files residing on other
1151          computers using Sun's Network File System protocol.  To compile
1152          this file system support as a module, choose M here: the module
1153          will be called nfs.
1154
1155          To mount file systems exported by NFS servers, you also need to
1156          install the user space mount.nfs command which can be found in
1157          the Linux nfs-utils package, available from http://linux-nfs.org/.
1158          Information about using the mount command is available in the
1159          mount(8) man page.  More detail about the Linux NFS client
1160          implementation is available via the nfs(5) man page.
1161
1162          Below you can choose which versions of the NFS protocol are
1163          available in the kernel to mount NFS servers.  Support for NFS
1164          version 2 (RFC 1094) is always available when NFS_FS is selected.
1165
1166          To configure a system which mounts its root file system via NFS
1167          at boot time, say Y here, select "Kernel level IP
1168          autoconfiguration" in the NETWORK menu, and select "Root file
1169          system on NFS" below.  You cannot compile this file system as a
1170          module in this case.
1171
1172          If unsure, say N.
1173
1174config NFS_V3
1175        bool "NFS client support for NFS version 3"
1176        depends on NFS_FS
1177        help
1178          This option enables support for version 3 of the NFS protocol
1179          (RFC 1813) in the kernel's NFS client.
1180
1181          If unsure, say Y.
1182
1183config NFS_V3_ACL
1184        bool "NFS client support for the NFSv3 ACL protocol extension"
1185        depends on NFS_V3
1186        help
1187          Some NFS servers support an auxiliary NFSv3 ACL protocol that
1188          Sun added to Solaris but never became an official part of the
1189          NFS version 3 protocol.  This protocol extension allows
1190          applications on NFS clients to manipulate POSIX Access Control
1191          Lists on files residing on NFS servers.  NFS servers enforce
1192          ACLs on local files whether this protocol is available or not.
1193
1194          Choose Y here if your NFS server supports the Solaris NFSv3 ACL
1195          protocol extension and you want your NFS client to allow
1196          applications to access and modify ACLs on files on the server.
1197
1198          Most NFS servers don't support the Solaris NFSv3 ACL protocol
1199          extension.  You can choose N here or specify the "noacl" mount
1200          option to prevent your NFS client from trying to use the NFSv3
1201          ACL protocol.
1202
1203          If unsure, say N.
1204
1205config NFS_V4
1206        bool "NFS client support for NFS version 4 (EXPERIMENTAL)"
1207        depends on NFS_FS && EXPERIMENTAL
1208        select RPCSEC_GSS_KRB5
1209        help
1210          This option enables support for version 4 of the NFS protocol
1211          (RFC 3530) in the kernel's NFS client.
1212
1213          To mount NFS servers using NFSv4, you also need to install user
1214          space programs which can be found in the Linux nfs-utils package,
1215          available from http://linux-nfs.org/.
1216
1217          If unsure, say N.
1218
1219config ROOT_NFS
1220        bool "Root file system on NFS"
1221        depends on NFS_FS=y && IP_PNP
1222        help
1223          If you want your system to mount its root file system via NFS,
1224          choose Y here.  This is common practice for managing systems
1225          without local permanent storage.  For details, read
1226          <file:Documentation/filesystems/nfsroot.txt>.
1227
1228          Most people say N here.
1229
1230config NFSD
1231        tristate "NFS server support"
1232        depends on INET
1233        select LOCKD
1234        select SUNRPC
1235        select EXPORTFS
1236        select NFS_ACL_SUPPORT if NFSD_V2_ACL
1237        help
1238          Choose Y here if you want to allow other computers to access
1239          files residing on this system using Sun's Network File System
1240          protocol.  To compile the NFS server support as a module,
1241          choose M here: the module will be called nfsd.
1242
1243          You may choose to use a user-space NFS server instead, in which
1244          case you can choose N here.
1245
1246          To export local file systems using NFS, you also need to install
1247          user space programs which can be found in the Linux nfs-utils
1248          package, available from http://linux-nfs.org/.  More detail about
1249          the Linux NFS server implementation is available via the
1250          exports(5) man page.
1251
1252          Below you can choose which versions of the NFS protocol are
1253          available to clients mounting the NFS server on this system.
1254          Support for NFS version 2 (RFC 1094) is always available when
1255          CONFIG_NFSD is selected.
1256
1257          If unsure, say N.
1258
1259config NFSD_V2_ACL
1260        bool
1261        depends on NFSD
1262
1263config NFSD_V3
1264        bool "NFS server support for NFS version 3"
1265        depends on NFSD
1266        help
1267          This option enables support in your system's NFS server for
1268          version 3 of the NFS protocol (RFC 1813).
1269
1270          If unsure, say Y.
1271
1272config NFSD_V3_ACL
1273        bool "NFS server support for the NFSv3 ACL protocol extension"
1274        depends on NFSD_V3
1275        select NFSD_V2_ACL
1276        help
1277          Solaris NFS servers support an auxiliary NFSv3 ACL protocol that
1278          never became an official part of the NFS version 3 protocol.
1279          This protocol extension allows applications on NFS clients to
1280          manipulate POSIX Access Control Lists on files residing on NFS
1281          servers.  NFS servers enforce POSIX ACLs on local files whether
1282          this protocol is available or not.
1283
1284          This option enables support in your system's NFS server for the
1285          NFSv3 ACL protocol extension allowing NFS clients to manipulate
1286          POSIX ACLs on files exported by your system's NFS server.  NFS
1287          clients which support the Solaris NFSv3 ACL protocol can then
1288          access and modify ACLs on your NFS server.
1289
1290          To store ACLs on your NFS server, you also need to enable ACL-
1291          related CONFIG options for your local file systems of choice.
1292
1293          If unsure, say N.
1294
1295config NFSD_V4
1296        bool "NFS server support for NFS version 4 (EXPERIMENTAL)"
1297        depends on NFSD && PROC_FS && EXPERIMENTAL
1298        select NFSD_V3
1299        select FS_POSIX_ACL
1300        select RPCSEC_GSS_KRB5
1301        help
1302          This option enables support in your system's NFS server for
1303          version 4 of the NFS protocol (RFC 3530).
1304
1305          To export files using NFSv4, you need to install additional user
1306          space programs which can be found in the Linux nfs-utils package,
1307          available from http://linux-nfs.org/.
1308
1309          If unsure, say N.
1310
1311config LOCKD
1312        tristate
1313
1314config LOCKD_V4
1315        bool
1316        depends on NFSD_V3 || NFS_V3
1317        default y
1318
1319config EXPORTFS
1320        tristate
1321
1322config NFS_ACL_SUPPORT
1323        tristate
1324        select FS_POSIX_ACL
1325
1326config NFS_COMMON
1327        bool
1328        depends on NFSD || NFS_FS
1329        default y
1330
1331config SUNRPC
1332        tristate
1333
1334config SUNRPC_GSS
1335        tristate
1336
1337config SUNRPC_XPRT_RDMA
1338        tristate
1339        depends on SUNRPC && INFINIBAND && EXPERIMENTAL
1340        default SUNRPC && INFINIBAND
1341        help
1342          This option enables an RPC client transport capability that
1343          allows the NFS client to mount servers via an RDMA-enabled
1344          transport.
1345
1346          To compile RPC client RDMA transport support as a module,
1347          choose M here: the module will be called xprtrdma.
1348
1349          If unsure, say N.
1350
1351config SUNRPC_REGISTER_V4
1352        bool "Register local RPC services via rpcbind v4 (EXPERIMENTAL)"
1353        depends on SUNRPC && EXPERIMENTAL
1354        default n
1355        help
1356          Sun added support for registering RPC services at an IPv6
1357          address by creating two new versions of the rpcbind protocol
1358          (RFC 1833).
1359
1360          This option enables support in the kernel RPC server for
1361          registering kernel RPC services via version 4 of the rpcbind
1362          protocol.  If you enable this option, you must run a portmapper
1363          daemon that supports rpcbind protocol version 4.
1364
1365          Serving NFS over IPv6 from knfsd (the kernel's NFS server)
1366          requires that you enable this option and use a portmapper that
1367          supports rpcbind version 4.
1368
1369          If unsure, say N to get traditional behavior (register kernel
1370          RPC services using only rpcbind version 2).  Distributions
1371          using the legacy Linux portmapper daemon must say N here.
1372
1373config RPCSEC_GSS_KRB5
1374        tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
1375        depends on SUNRPC && EXPERIMENTAL
1376        select SUNRPC_GSS
1377        select CRYPTO
1378        select CRYPTO_MD5
1379        select CRYPTO_DES
1380        select CRYPTO_CBC
1381        help
1382          Choose Y here to enable Secure RPC using the Kerberos version 5
1383          GSS-API mechanism (RFC 1964).
1384
1385          Secure RPC calls with Kerberos require an auxiliary user-space
1386          daemon which may be found in the Linux nfs-utils package
1387          available from http://linux-nfs.org/.  In addition, user-space
1388          Kerberos support should be installed.
1389
1390          If unsure, say N.
1391
1392config RPCSEC_GSS_SPKM3
1393        tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
1394        depends on SUNRPC && EXPERIMENTAL
1395        select SUNRPC_GSS
1396        select CRYPTO
1397        select CRYPTO_MD5
1398        select CRYPTO_DES
1399        select CRYPTO_CAST5
1400        select CRYPTO_CBC
1401        help
1402          Choose Y here to enable Secure RPC using the SPKM3 public key
1403          GSS-API mechansim (RFC 2025).
1404
1405          Secure RPC calls with SPKM3 require an auxiliary userspace
1406          daemon which may be found in the Linux nfs-utils package
1407          available from http://linux-nfs.org/.
1408
1409          If unsure, say N.
1410
1411config SMB_FS
1412        tristate "SMB file system support (OBSOLETE, please use CIFS)"
1413        depends on INET
1414        select NLS
1415        help
1416          SMB (Server Message Block) is the protocol Windows for Workgroups
1417          (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
1418          files and printers over local networks.  Saying Y here allows you to
1419          mount their file systems (often called "shares" in this context) and
1420          access them just like any other Unix directory.  Currently, this
1421          works only if the Windows machines use TCP/IP as the underlying
1422          transport protocol, and not NetBEUI.  For details, read
1423          <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
1424          available from <http://www.tldp.org/docs.html#howto>.
1425
1426          Note: if you just want your box to act as an SMB *server* and make
1427          files and printing services available to Windows clients (which need
1428          to have a TCP/IP stack), you don't need to say Y here; you can use
1429          the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
1430          for that.
1431
1432          General information about how to connect Linux, Windows machines and
1433          Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1434
1435          To compile the SMB support as a module, choose M here:
1436          the module will be called smbfs.  Most people say N, however.
1437
1438config SMB_NLS_DEFAULT
1439        bool "Use a default NLS"
1440        depends on SMB_FS
1441        help
1442          Enabling this will make smbfs use nls translations by default. You
1443          need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
1444          settings and you need to give the default nls for the SMB server as
1445          CONFIG_SMB_NLS_REMOTE.
1446
1447          The nls settings can be changed at mount time, if your smbmount
1448          supports that, using the codepage and iocharset parameters.
1449
1450          smbmount from samba 2.2.0 or later supports this.
1451
1452config SMB_NLS_REMOTE
1453        string "Default Remote NLS Option"
1454        depends on SMB_NLS_DEFAULT
1455        default "cp437"
1456        help
1457          This setting allows you to specify a default value for which
1458          codepage the server uses. If this field is left blank no
1459          translations will be done by default. The local codepage/charset
1460          default to CONFIG_NLS_DEFAULT.
1461
1462          The nls settings can be changed at mount time, if your smbmount
1463          supports that, using the codepage and iocharset parameters.
1464
1465          smbmount from samba 2.2.0 or later supports this.
1466
1467source "fs/cifs/Kconfig"
1468
1469config NCP_FS
1470        tristate "NCP file system support (to mount NetWare volumes)"
1471        depends on IPX!=n || INET
1472        help
1473          NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
1474          used by Novell NetWare clients to talk to file servers.  It is to
1475          IPX what NFS is to TCP/IP, if that helps.  Saying Y here allows you
1476          to mount NetWare file server volumes and to access them just like
1477          any other Unix directory.  For details, please read the file
1478          <file:Documentation/filesystems/ncpfs.txt> in the kernel source and
1479          the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
1480
1481          You do not have to say Y here if you want your Linux box to act as a
1482          file *server* for Novell NetWare clients.
1483
1484          General information about how to connect Linux, Windows machines and
1485          Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1486
1487          To compile this as a module, choose M here: the module will be called
1488          ncpfs.  Say N unless you are connected to a Novell network.
1489
1490source "fs/ncpfs/Kconfig"
1491
1492config CODA_FS
1493        tristate "Coda file system support (advanced network fs)"
1494        depends on INET
1495        help
1496          Coda is an advanced network file system, similar to NFS in that it
1497          enables you to mount file systems of a remote server and access them
1498          with regular Unix commands as if they were sitting on your hard
1499          disk.  Coda has several advantages over NFS: support for
1500          disconnected operation (e.g. for laptops), read/write server
1501          replication, security model for authentication and encryption,
1502          persistent client caches and write back caching.
1503
1504          If you say Y here, your Linux box will be able to act as a Coda
1505          *client*.  You will need user level code as well, both for the
1506          client and server.  Servers are currently user level, i.e. they need
1507          no kernel support.  Please read
1508          <file:Documentation/filesystems/coda.txt> and check out the Coda
1509          home page <http://www.coda.cs.cmu.edu/>.
1510
1511          To compile the coda client support as a module, choose M here: the
1512          module will be called coda.
1513
1514config AFS_FS
1515        tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
1516        depends on INET && EXPERIMENTAL
1517        select AF_RXRPC
1518        help
1519          If you say Y here, you will get an experimental Andrew File System
1520          driver. It currently only supports unsecured read-only AFS access.
1521
1522          See <file:Documentation/filesystems/afs.txt> for more information.
1523
1524          If unsure, say N.
1525
1526config AFS_DEBUG
1527        bool "AFS dynamic debugging"
1528        depends on AFS_FS
1529        help
1530          Say Y here to make runtime controllable debugging messages appear.
1531
1532          See <file:Documentation/filesystems/afs.txt> for more information.
1533
1534          If unsure, say N.
1535
1536config 9P_FS
1537        tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
1538        depends on INET && NET_9P && EXPERIMENTAL
1539        help
1540          If you say Y here, you will get experimental support for
1541          Plan 9 resource sharing via the 9P2000 protocol.
1542
1543          See <http://v9fs.sf.net> for more information.
1544
1545          If unsure, say N.
1546
1547endif # NETWORK_FILESYSTEMS
1548
1549if BLOCK
1550menu "Partition Types"
1551
1552source "fs/partitions/Kconfig"
1553
1554endmenu
1555endif
1556
1557source "fs/nls/Kconfig"
1558source "fs/dlm/Kconfig"
1559
1560endmenu
1561
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