xref: /linux/fs/Kconfig (revision 1e40316bc44851c5920490df01482ed862e4dbc4)
11da177e4SLinus Torvalds#
21da177e4SLinus Torvalds# File system configuration
31da177e4SLinus Torvalds#
41da177e4SLinus Torvalds
51da177e4SLinus Torvaldsmenu "File systems"
61da177e4SLinus Torvalds
79361401eSDavid Howellsif BLOCK
89361401eSDavid Howells
91da177e4SLinus Torvaldsconfig EXT2_FS
101da177e4SLinus Torvalds	tristate "Second extended fs support"
111da177e4SLinus Torvalds	help
121da177e4SLinus Torvalds	  Ext2 is a standard Linux file system for hard disks.
131da177e4SLinus Torvalds
141da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
15d23edbd3SJan Engelhardt	  module will be called ext2.
161da177e4SLinus Torvalds
171da177e4SLinus Torvalds	  If unsure, say Y.
181da177e4SLinus Torvalds
191da177e4SLinus Torvaldsconfig EXT2_FS_XATTR
201da177e4SLinus Torvalds	bool "Ext2 extended attributes"
211da177e4SLinus Torvalds	depends on EXT2_FS
221da177e4SLinus Torvalds	help
231da177e4SLinus Torvalds	  Extended attributes are name:value pairs associated with inodes by
241da177e4SLinus Torvalds	  the kernel or by users (see the attr(5) manual page, or visit
251da177e4SLinus Torvalds	  <http://acl.bestbits.at/> for details).
261da177e4SLinus Torvalds
271da177e4SLinus Torvalds	  If unsure, say N.
281da177e4SLinus Torvalds
291da177e4SLinus Torvaldsconfig EXT2_FS_POSIX_ACL
301da177e4SLinus Torvalds	bool "Ext2 POSIX Access Control Lists"
311da177e4SLinus Torvalds	depends on EXT2_FS_XATTR
32b84c2157SAndreas Gruenbacher	select FS_POSIX_ACL
331da177e4SLinus Torvalds	help
341da177e4SLinus Torvalds	  Posix Access Control Lists (ACLs) support permissions for users and
351da177e4SLinus Torvalds	  groups beyond the owner/group/world scheme.
361da177e4SLinus Torvalds
371da177e4SLinus Torvalds	  To learn more about Access Control Lists, visit the Posix ACLs for
381da177e4SLinus Torvalds	  Linux website <http://acl.bestbits.at/>.
391da177e4SLinus Torvalds
401da177e4SLinus Torvalds	  If you don't know what Access Control Lists are, say N
411da177e4SLinus Torvalds
421da177e4SLinus Torvaldsconfig EXT2_FS_SECURITY
431da177e4SLinus Torvalds	bool "Ext2 Security Labels"
441da177e4SLinus Torvalds	depends on EXT2_FS_XATTR
451da177e4SLinus Torvalds	help
461da177e4SLinus Torvalds	  Security labels support alternative access control models
471da177e4SLinus Torvalds	  implemented by security modules like SELinux.  This option
481da177e4SLinus Torvalds	  enables an extended attribute handler for file security
491da177e4SLinus Torvalds	  labels in the ext2 filesystem.
501da177e4SLinus Torvalds
511da177e4SLinus Torvalds	  If you are not using a security module that requires using
521da177e4SLinus Torvalds	  extended attributes for file security labels, say N.
531da177e4SLinus Torvalds
546d79125bSCarsten Otteconfig EXT2_FS_XIP
556d79125bSCarsten Otte	bool "Ext2 execute in place support"
560c426f26SAl Viro	depends on EXT2_FS && MMU
576d79125bSCarsten Otte	help
586d79125bSCarsten Otte	  Execute in place can be used on memory-backed block devices. If you
596d79125bSCarsten Otte	  enable this option, you can select to mount block devices which are
606d79125bSCarsten Otte	  capable of this feature without using the page cache.
616d79125bSCarsten Otte
626d79125bSCarsten Otte	  If you do not use a block device that is capable of using this,
636d79125bSCarsten Otte	  or if unsure, say N.
646d79125bSCarsten Otte
656d79125bSCarsten Otteconfig FS_XIP
666d79125bSCarsten Otte# execute in place
676d79125bSCarsten Otte	bool
686d79125bSCarsten Otte	depends on EXT2_FS_XIP
696d79125bSCarsten Otte	default y
706d79125bSCarsten Otte
711da177e4SLinus Torvaldsconfig EXT3_FS
721da177e4SLinus Torvalds	tristate "Ext3 journalling file system support"
73b4e40a51SMark Fasheh	select JBD
741da177e4SLinus Torvalds	help
75cc2e2767SMatt LaPlante	  This is the journalling version of the Second extended file system
761da177e4SLinus Torvalds	  (often called ext3), the de facto standard Linux file system
771da177e4SLinus Torvalds	  (method to organize files on a storage device) for hard disks.
781da177e4SLinus Torvalds
79cc2e2767SMatt LaPlante	  The journalling code included in this driver means you do not have
801da177e4SLinus Torvalds	  to run e2fsck (file system checker) on your file systems after a
811da177e4SLinus Torvalds	  crash.  The journal keeps track of any changes that were being made
821da177e4SLinus Torvalds	  at the time the system crashed, and can ensure that your file system
831da177e4SLinus Torvalds	  is consistent without the need for a lengthy check.
841da177e4SLinus Torvalds
851da177e4SLinus Torvalds	  Other than adding the journal to the file system, the on-disk format
861da177e4SLinus Torvalds	  of ext3 is identical to ext2.  It is possible to freely switch
871da177e4SLinus Torvalds	  between using the ext3 driver and the ext2 driver, as long as the
881da177e4SLinus Torvalds	  file system has been cleanly unmounted, or e2fsck is run on the file
891da177e4SLinus Torvalds	  system.
901da177e4SLinus Torvalds
911da177e4SLinus Torvalds	  To add a journal on an existing ext2 file system or change the
921da177e4SLinus Torvalds	  behavior of ext3 file systems, you can use the tune2fs utility ("man
931da177e4SLinus Torvalds	  tune2fs").  To modify attributes of files and directories on ext3
941da177e4SLinus Torvalds	  file systems, use chattr ("man chattr").  You need to be using
951da177e4SLinus Torvalds	  e2fsprogs version 1.20 or later in order to create ext3 journals
961da177e4SLinus Torvalds	  (available at <http://sourceforge.net/projects/e2fsprogs/>).
971da177e4SLinus Torvalds
981da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
99d23edbd3SJan Engelhardt	  module will be called ext3.
1001da177e4SLinus Torvalds
1011da177e4SLinus Torvaldsconfig EXT3_FS_XATTR
1021da177e4SLinus Torvalds	bool "Ext3 extended attributes"
1031da177e4SLinus Torvalds	depends on EXT3_FS
1041da177e4SLinus Torvalds	default y
1051da177e4SLinus Torvalds	help
1061da177e4SLinus Torvalds	  Extended attributes are name:value pairs associated with inodes by
1071da177e4SLinus Torvalds	  the kernel or by users (see the attr(5) manual page, or visit
1081da177e4SLinus Torvalds	  <http://acl.bestbits.at/> for details).
1091da177e4SLinus Torvalds
1101da177e4SLinus Torvalds	  If unsure, say N.
1111da177e4SLinus Torvalds
1121da177e4SLinus Torvalds	  You need this for POSIX ACL support on ext3.
1131da177e4SLinus Torvalds
1141da177e4SLinus Torvaldsconfig EXT3_FS_POSIX_ACL
1151da177e4SLinus Torvalds	bool "Ext3 POSIX Access Control Lists"
1161da177e4SLinus Torvalds	depends on EXT3_FS_XATTR
117b84c2157SAndreas Gruenbacher	select FS_POSIX_ACL
1181da177e4SLinus Torvalds	help
1191da177e4SLinus Torvalds	  Posix Access Control Lists (ACLs) support permissions for users and
1201da177e4SLinus Torvalds	  groups beyond the owner/group/world scheme.
1211da177e4SLinus Torvalds
1221da177e4SLinus Torvalds	  To learn more about Access Control Lists, visit the Posix ACLs for
1231da177e4SLinus Torvalds	  Linux website <http://acl.bestbits.at/>.
1241da177e4SLinus Torvalds
1251da177e4SLinus Torvalds	  If you don't know what Access Control Lists are, say N
1261da177e4SLinus Torvalds
1271da177e4SLinus Torvaldsconfig EXT3_FS_SECURITY
1281da177e4SLinus Torvalds	bool "Ext3 Security Labels"
1291da177e4SLinus Torvalds	depends on EXT3_FS_XATTR
1301da177e4SLinus Torvalds	help
1311da177e4SLinus Torvalds	  Security labels support alternative access control models
1321da177e4SLinus Torvalds	  implemented by security modules like SELinux.  This option
1331da177e4SLinus Torvalds	  enables an extended attribute handler for file security
1341da177e4SLinus Torvalds	  labels in the ext3 filesystem.
1351da177e4SLinus Torvalds
1361da177e4SLinus Torvalds	  If you are not using a security module that requires using
1371da177e4SLinus Torvalds	  extended attributes for file security labels, say N.
1381da177e4SLinus Torvalds
13902ea2104SMingming Caoconfig EXT4DEV_FS
14002ea2104SMingming Cao	tristate "Ext4dev/ext4 extended fs support development (EXPERIMENTAL)"
14102ea2104SMingming Cao	depends on EXPERIMENTAL
142dab291afSMingming Cao	select JBD2
143717d50e4SAndreas Dilger	select CRC16
14402ea2104SMingming Cao	help
14502ea2104SMingming Cao	  Ext4dev is a predecessor filesystem of the next generation
14602ea2104SMingming Cao	  extended fs ext4, based on ext3 filesystem code. It will be
14702ea2104SMingming Cao	  renamed ext4 fs later, once ext4dev is mature and stabilized.
14802ea2104SMingming Cao
14902ea2104SMingming Cao	  Unlike the change from ext2 filesystem to ext3 filesystem,
15002ea2104SMingming Cao	  the on-disk format of ext4dev is not the same as ext3 any more:
15102ea2104SMingming Cao	  it is based on extent maps and it supports 48-bit physical block
15202ea2104SMingming Cao	  numbers. These combined on-disk format changes will allow
15302ea2104SMingming Cao	  ext4dev/ext4 to handle more than 16 TB filesystem volumes --
15402ea2104SMingming Cao	  a hard limit that ext3 cannot overcome without changing the
15502ea2104SMingming Cao	  on-disk format.
15602ea2104SMingming Cao
15702ea2104SMingming Cao	  Other than extent maps and 48-bit block numbers, ext4dev also is
15802ea2104SMingming Cao	  likely to have other new features such as persistent preallocation,
15902ea2104SMingming Cao	  high resolution time stamps, and larger file support etc.  These
16002ea2104SMingming Cao	  features will be added to ext4dev gradually.
16102ea2104SMingming Cao
16202ea2104SMingming Cao	  To compile this file system support as a module, choose M here. The
163d23edbd3SJan Engelhardt	  module will be called ext4dev.
16402ea2104SMingming Cao
16502ea2104SMingming Cao	  If unsure, say N.
16602ea2104SMingming Cao
16702ea2104SMingming Caoconfig EXT4DEV_FS_XATTR
16802ea2104SMingming Cao	bool "Ext4dev extended attributes"
16902ea2104SMingming Cao	depends on EXT4DEV_FS
17002ea2104SMingming Cao	default y
17102ea2104SMingming Cao	help
17202ea2104SMingming Cao	  Extended attributes are name:value pairs associated with inodes by
17302ea2104SMingming Cao	  the kernel or by users (see the attr(5) manual page, or visit
17402ea2104SMingming Cao	  <http://acl.bestbits.at/> for details).
17502ea2104SMingming Cao
17602ea2104SMingming Cao	  If unsure, say N.
17702ea2104SMingming Cao
17802ea2104SMingming Cao	  You need this for POSIX ACL support on ext4dev/ext4.
17902ea2104SMingming Cao
18002ea2104SMingming Caoconfig EXT4DEV_FS_POSIX_ACL
18102ea2104SMingming Cao	bool "Ext4dev POSIX Access Control Lists"
18202ea2104SMingming Cao	depends on EXT4DEV_FS_XATTR
18302ea2104SMingming Cao	select FS_POSIX_ACL
18402ea2104SMingming Cao	help
18502ea2104SMingming Cao	  POSIX Access Control Lists (ACLs) support permissions for users and
18602ea2104SMingming Cao	  groups beyond the owner/group/world scheme.
18702ea2104SMingming Cao
18802ea2104SMingming Cao	  To learn more about Access Control Lists, visit the POSIX ACLs for
18902ea2104SMingming Cao	  Linux website <http://acl.bestbits.at/>.
19002ea2104SMingming Cao
19102ea2104SMingming Cao	  If you don't know what Access Control Lists are, say N
19202ea2104SMingming Cao
19302ea2104SMingming Caoconfig EXT4DEV_FS_SECURITY
19402ea2104SMingming Cao	bool "Ext4dev Security Labels"
19502ea2104SMingming Cao	depends on EXT4DEV_FS_XATTR
19602ea2104SMingming Cao	help
19702ea2104SMingming Cao	  Security labels support alternative access control models
19802ea2104SMingming Cao	  implemented by security modules like SELinux.  This option
19902ea2104SMingming Cao	  enables an extended attribute handler for file security
20002ea2104SMingming Cao	  labels in the ext4dev/ext4 filesystem.
20102ea2104SMingming Cao
20202ea2104SMingming Cao	  If you are not using a security module that requires using
20302ea2104SMingming Cao	  extended attributes for file security labels, say N.
20402ea2104SMingming Cao
2051da177e4SLinus Torvaldsconfig JBD
2061da177e4SLinus Torvalds	tristate
2071da177e4SLinus Torvalds	help
208cc2e2767SMatt LaPlante	  This is a generic journalling layer for block devices.  It is
209b4e40a51SMark Fasheh	  currently used by the ext3 and OCFS2 file systems, but it could
210b4e40a51SMark Fasheh	  also be used to add journal support to other file systems or block
211b4e40a51SMark Fasheh	  devices such as RAID or LVM.
2121da177e4SLinus Torvalds
213b4e40a51SMark Fasheh	  If you are using the ext3 or OCFS2 file systems, you need to
214b4e40a51SMark Fasheh	  say Y here. If you are not using ext3 OCFS2 then you will probably
215b4e40a51SMark Fasheh	  want to say N.
2161da177e4SLinus Torvalds
2171da177e4SLinus Torvalds	  To compile this device as a module, choose M here: the module will be
218b4e40a51SMark Fasheh	  called jbd.  If you are compiling ext3 or OCFS2 into the kernel,
219b4e40a51SMark Fasheh	  you cannot compile this code as a module.
2201da177e4SLinus Torvalds
2211da177e4SLinus Torvaldsconfig JBD_DEBUG
2221da177e4SLinus Torvalds	bool "JBD (ext3) debugging support"
223c2a9159cSJose R. Santos	depends on JBD && DEBUG_FS
2241da177e4SLinus Torvalds	help
2251da177e4SLinus Torvalds	  If you are using the ext3 journaled file system (or potentially any
2261da177e4SLinus Torvalds	  other file system/device using JBD), this option allows you to
2271da177e4SLinus Torvalds	  enable debugging output while the system is running, in order to
2281da177e4SLinus Torvalds	  help track down any problems you are having.  By default the
2291da177e4SLinus Torvalds	  debugging output will be turned off.
2301da177e4SLinus Torvalds
2311da177e4SLinus Torvalds	  If you select Y here, then you will be able to turn on debugging
232c2a9159cSJose R. Santos	  with "echo N > /sys/kernel/debug/jbd/jbd-debug", where N is a
233c2a9159cSJose R. Santos	  number between 1 and 5, the higher the number, the more debugging
234c2a9159cSJose R. Santos	  output is generated.  To turn debugging off again, do
235c2a9159cSJose R. Santos	  "echo 0 > /sys/kernel/debug/jbd/jbd-debug".
2361da177e4SLinus Torvalds
237dab291afSMingming Caoconfig JBD2
238dab291afSMingming Cao	tristate
239818d276cSGirish Shilamkar	select CRC32
240dab291afSMingming Cao	help
241dab291afSMingming Cao	  This is a generic journaling layer for block devices that support
242dab291afSMingming Cao	  both 32-bit and 64-bit block numbers.  It is currently used by
243dab291afSMingming Cao	  the ext4dev/ext4 filesystem, but it could also be used to add
244dab291afSMingming Cao	  journal support to other file systems or block devices such
245dab291afSMingming Cao	  as RAID or LVM.
246dab291afSMingming Cao
247dab291afSMingming Cao	  If you are using ext4dev/ext4, you need to say Y here. If you are not
248dab291afSMingming Cao	  using ext4dev/ext4 then you will probably want to say N.
249dab291afSMingming Cao
250dab291afSMingming Cao	  To compile this device as a module, choose M here. The module will be
251dab291afSMingming Cao	  called jbd2.  If you are compiling ext4dev/ext4 into the kernel,
252dab291afSMingming Cao	  you cannot compile this code as a module.
253dab291afSMingming Cao
254dab291afSMingming Caoconfig JBD2_DEBUG
255dab291afSMingming Cao	bool "JBD2 (ext4dev/ext4) debugging support"
2560f49d5d0SJose R. Santos	depends on JBD2 && DEBUG_FS
257dab291afSMingming Cao	help
258dab291afSMingming Cao	  If you are using the ext4dev/ext4 journaled file system (or
259dab291afSMingming Cao	  potentially any other filesystem/device using JBD2), this option
260dab291afSMingming Cao	  allows you to enable debugging output while the system is running,
261dab291afSMingming Cao	  in order to help track down any problems you are having.
262dab291afSMingming Cao	  By default, the debugging output will be turned off.
263dab291afSMingming Cao
264dab291afSMingming Cao	  If you select Y here, then you will be able to turn on debugging
2650f49d5d0SJose R. Santos	  with "echo N > /sys/kernel/debug/jbd2/jbd2-debug", where N is a
2660f49d5d0SJose R. Santos	  number between 1 and 5. The higher the number, the more debugging
2670f49d5d0SJose R. Santos	  output is generated.  To turn debugging off again, do
2680f49d5d0SJose R. Santos	  "echo 0 > /sys/kernel/debug/jbd2/jbd2-debug".
269dab291afSMingming Cao
2701da177e4SLinus Torvaldsconfig FS_MBCACHE
27102ea2104SMingming Cao# Meta block cache for Extended Attributes (ext2/ext3/ext4)
2721da177e4SLinus Torvalds	tristate
27302ea2104SMingming Cao	depends on EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4DEV_FS_XATTR
27402ea2104SMingming Cao	default y if EXT2_FS=y || EXT3_FS=y || EXT4DEV_FS=y
27502ea2104SMingming Cao	default m if EXT2_FS=m || EXT3_FS=m || EXT4DEV_FS=m
2761da177e4SLinus Torvalds
2771da177e4SLinus Torvaldsconfig REISERFS_FS
2781da177e4SLinus Torvalds	tristate "Reiserfs support"
2791da177e4SLinus Torvalds	help
2801da177e4SLinus Torvalds	  Stores not just filenames but the files themselves in a balanced
281cc2e2767SMatt LaPlante	  tree.  Uses journalling.
2821da177e4SLinus Torvalds
2831da177e4SLinus Torvalds	  Balanced trees are more efficient than traditional file system
2841da177e4SLinus Torvalds	  architectural foundations.
2851da177e4SLinus Torvalds
2861da177e4SLinus Torvalds	  In general, ReiserFS is as fast as ext2, but is very efficient with
2871da177e4SLinus Torvalds	  large directories and small files.  Additional patches are needed
2881da177e4SLinus Torvalds	  for NFS and quotas, please see <http://www.namesys.com/> for links.
2891da177e4SLinus Torvalds
2901da177e4SLinus Torvalds	  It is more easily extended to have features currently found in
2911da177e4SLinus Torvalds	  database and keyword search systems than block allocation based file
2921da177e4SLinus Torvalds	  systems are.  The next version will be so extended, and will support
2931da177e4SLinus Torvalds	  plugins consistent with our motto ``It takes more than a license to
2941da177e4SLinus Torvalds	  make source code open.''
2951da177e4SLinus Torvalds
2961da177e4SLinus Torvalds	  Read <http://www.namesys.com/> to learn more about reiserfs.
2971da177e4SLinus Torvalds
2981da177e4SLinus Torvalds	  Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com.
2991da177e4SLinus Torvalds
3001da177e4SLinus Torvalds	  If you like it, you can pay us to add new features to it that you
3011da177e4SLinus Torvalds	  need, buy a support contract, or pay us to port it to another OS.
3021da177e4SLinus Torvalds
3031da177e4SLinus Torvaldsconfig REISERFS_CHECK
3041da177e4SLinus Torvalds	bool "Enable reiserfs debug mode"
3051da177e4SLinus Torvalds	depends on REISERFS_FS
3061da177e4SLinus Torvalds	help
3071da177e4SLinus Torvalds	  If you set this to Y, then ReiserFS will perform every check it can
3081da177e4SLinus Torvalds	  possibly imagine of its internal consistency throughout its
3091da177e4SLinus Torvalds	  operation.  It will also go substantially slower.  More than once we
3101da177e4SLinus Torvalds	  have forgotten that this was on, and then gone despondent over the
3111da177e4SLinus Torvalds	  latest benchmarks.:-) Use of this option allows our team to go all
3121da177e4SLinus Torvalds	  out in checking for consistency when debugging without fear of its
3131da177e4SLinus Torvalds	  effect on end users.  If you are on the verge of sending in a bug
3141da177e4SLinus Torvalds	  report, say Y and you might get a useful error message.  Almost
3151da177e4SLinus Torvalds	  everyone should say N.
3161da177e4SLinus Torvalds
3171da177e4SLinus Torvaldsconfig REISERFS_PROC_INFO
3181da177e4SLinus Torvalds	bool "Stats in /proc/fs/reiserfs"
319880ebdc5SRandy Dunlap	depends on REISERFS_FS && PROC_FS
3201da177e4SLinus Torvalds	help
3211da177e4SLinus Torvalds	  Create under /proc/fs/reiserfs a hierarchy of files, displaying
3221da177e4SLinus Torvalds	  various ReiserFS statistics and internal data at the expense of
3231da177e4SLinus Torvalds	  making your kernel or module slightly larger (+8 KB). This also
3241da177e4SLinus Torvalds	  increases the amount of kernel memory required for each mount.
3251da177e4SLinus Torvalds	  Almost everyone but ReiserFS developers and people fine-tuning
3261da177e4SLinus Torvalds	  reiserfs or tracing problems should say N.
3271da177e4SLinus Torvalds
3281da177e4SLinus Torvaldsconfig REISERFS_FS_XATTR
3291da177e4SLinus Torvalds	bool "ReiserFS extended attributes"
3301da177e4SLinus Torvalds	depends on REISERFS_FS
3311da177e4SLinus Torvalds	help
3321da177e4SLinus Torvalds	  Extended attributes are name:value pairs associated with inodes by
3331da177e4SLinus Torvalds	  the kernel or by users (see the attr(5) manual page, or visit
3341da177e4SLinus Torvalds	  <http://acl.bestbits.at/> for details).
3351da177e4SLinus Torvalds
3361da177e4SLinus Torvalds	  If unsure, say N.
3371da177e4SLinus Torvalds
3381da177e4SLinus Torvaldsconfig REISERFS_FS_POSIX_ACL
3391da177e4SLinus Torvalds	bool "ReiserFS POSIX Access Control Lists"
3401da177e4SLinus Torvalds	depends on REISERFS_FS_XATTR
341b84c2157SAndreas Gruenbacher	select FS_POSIX_ACL
3421da177e4SLinus Torvalds	help
3431da177e4SLinus Torvalds	  Posix Access Control Lists (ACLs) support permissions for users and
3441da177e4SLinus Torvalds	  groups beyond the owner/group/world scheme.
3451da177e4SLinus Torvalds
3461da177e4SLinus Torvalds	  To learn more about Access Control Lists, visit the Posix ACLs for
3471da177e4SLinus Torvalds	  Linux website <http://acl.bestbits.at/>.
3481da177e4SLinus Torvalds
3491da177e4SLinus Torvalds	  If you don't know what Access Control Lists are, say N
3501da177e4SLinus Torvalds
3511da177e4SLinus Torvaldsconfig REISERFS_FS_SECURITY
3521da177e4SLinus Torvalds	bool "ReiserFS Security Labels"
3531da177e4SLinus Torvalds	depends on REISERFS_FS_XATTR
3541da177e4SLinus Torvalds	help
3551da177e4SLinus Torvalds	  Security labels support alternative access control models
3561da177e4SLinus Torvalds	  implemented by security modules like SELinux.  This option
3571da177e4SLinus Torvalds	  enables an extended attribute handler for file security
3581da177e4SLinus Torvalds	  labels in the ReiserFS filesystem.
3591da177e4SLinus Torvalds
3601da177e4SLinus Torvalds	  If you are not using a security module that requires using
3611da177e4SLinus Torvalds	  extended attributes for file security labels, say N.
3621da177e4SLinus Torvalds
3631da177e4SLinus Torvaldsconfig JFS_FS
3641da177e4SLinus Torvalds	tristate "JFS filesystem support"
3651da177e4SLinus Torvalds	select NLS
3661da177e4SLinus Torvalds	help
3671da177e4SLinus Torvalds	  This is a port of IBM's Journaled Filesystem .  More information is
3681da177e4SLinus Torvalds	  available in the file <file:Documentation/filesystems/jfs.txt>.
3691da177e4SLinus Torvalds
3701da177e4SLinus Torvalds	  If you do not intend to use the JFS filesystem, say N.
3711da177e4SLinus Torvalds
3721da177e4SLinus Torvaldsconfig JFS_POSIX_ACL
3731da177e4SLinus Torvalds	bool "JFS POSIX Access Control Lists"
3741da177e4SLinus Torvalds	depends on JFS_FS
375b84c2157SAndreas Gruenbacher	select FS_POSIX_ACL
3761da177e4SLinus Torvalds	help
3771da177e4SLinus Torvalds	  Posix Access Control Lists (ACLs) support permissions for users and
3781da177e4SLinus Torvalds	  groups beyond the owner/group/world scheme.
3791da177e4SLinus Torvalds
3801da177e4SLinus Torvalds	  To learn more about Access Control Lists, visit the Posix ACLs for
3811da177e4SLinus Torvalds	  Linux website <http://acl.bestbits.at/>.
3821da177e4SLinus Torvalds
3831da177e4SLinus Torvalds	  If you don't know what Access Control Lists are, say N
3841da177e4SLinus Torvalds
3851da177e4SLinus Torvaldsconfig JFS_SECURITY
3861da177e4SLinus Torvalds	bool "JFS Security Labels"
3871da177e4SLinus Torvalds	depends on JFS_FS
3881da177e4SLinus Torvalds	help
3891da177e4SLinus Torvalds	  Security labels support alternative access control models
3901da177e4SLinus Torvalds	  implemented by security modules like SELinux.  This option
3911da177e4SLinus Torvalds	  enables an extended attribute handler for file security
3921da177e4SLinus Torvalds	  labels in the jfs filesystem.
3931da177e4SLinus Torvalds
3941da177e4SLinus Torvalds	  If you are not using a security module that requires using
3951da177e4SLinus Torvalds	  extended attributes for file security labels, say N.
3961da177e4SLinus Torvalds
3971da177e4SLinus Torvaldsconfig JFS_DEBUG
3981da177e4SLinus Torvalds	bool "JFS debugging"
3991da177e4SLinus Torvalds	depends on JFS_FS
4001da177e4SLinus Torvalds	help
4011da177e4SLinus Torvalds	  If you are experiencing any problems with the JFS filesystem, say
4021da177e4SLinus Torvalds	  Y here.  This will result in additional debugging messages to be
4031da177e4SLinus Torvalds	  written to the system log.  Under normal circumstances, this
4041da177e4SLinus Torvalds	  results in very little overhead.
4051da177e4SLinus Torvalds
4061da177e4SLinus Torvaldsconfig JFS_STATISTICS
4071da177e4SLinus Torvalds	bool "JFS statistics"
4081da177e4SLinus Torvalds	depends on JFS_FS
4091da177e4SLinus Torvalds	help
4101da177e4SLinus Torvalds	  Enabling this option will cause statistics from the JFS file system
4111da177e4SLinus Torvalds	  to be made available to the user in the /proc/fs/jfs/ directory.
4121da177e4SLinus Torvalds
4131da177e4SLinus Torvaldsconfig FS_POSIX_ACL
4141da177e4SLinus Torvalds# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs)
4151da177e4SLinus Torvalds#
4161da177e4SLinus Torvalds# NOTE: you can implement Posix ACLs without these helpers (XFS does).
4171da177e4SLinus Torvalds# 	Never use this symbol for ifdefs.
4181da177e4SLinus Torvalds#
4191da177e4SLinus Torvalds	bool
420b84c2157SAndreas Gruenbacher	default n
4211da177e4SLinus Torvalds
4221da177e4SLinus Torvaldssource "fs/xfs/Kconfig"
423f7825dcfSDavid Teiglandsource "fs/gfs2/Kconfig"
4241da177e4SLinus Torvalds
425b4e40a51SMark Fashehconfig OCFS2_FS
42602ed8416SMark Fasheh	tristate "OCFS2 file system support"
42702ed8416SMark Fasheh	depends on NET && SYSFS
428b4e40a51SMark Fasheh	select CONFIGFS_FS
429b4e40a51SMark Fasheh	select JBD
430b4e40a51SMark Fasheh	select CRC32
431b4e40a51SMark Fasheh	help
432b4e40a51SMark Fasheh	  OCFS2 is a general purpose extent based shared disk cluster file
433b4e40a51SMark Fasheh	  system with many similarities to ext3. It supports 64 bit inode
434b4e40a51SMark Fasheh	  numbers, and has automatically extending metadata groups which may
435b4e40a51SMark Fasheh	  also make it attractive for non-clustered use.
436b4e40a51SMark Fasheh
437b4e40a51SMark Fasheh	  You'll want to install the ocfs2-tools package in order to at least
438b4e40a51SMark Fasheh	  get "mount.ocfs2".
439b4e40a51SMark Fasheh
440b4e40a51SMark Fasheh	  Project web page:    http://oss.oracle.com/projects/ocfs2
441b4e40a51SMark Fasheh	  Tools web page:      http://oss.oracle.com/projects/ocfs2-tools
442b4e40a51SMark Fasheh	  OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/
443b4e40a51SMark Fasheh
4441252c434SMark Fasheh	  For more information on OCFS2, see the file
4451252c434SMark Fasheh	  <file:Documentation/filesystems/ocfs2.txt>.
446b4e40a51SMark Fasheh
4472b388c67SJoel Beckerconfig OCFS2_DEBUG_MASKLOG
4482b388c67SJoel Becker	bool "OCFS2 logging support"
4492b388c67SJoel Becker	depends on OCFS2_FS
4502b388c67SJoel Becker	default y
4512b388c67SJoel Becker	help
4522b388c67SJoel Becker	  The ocfs2 filesystem has an extensive logging system.  The system
4532b388c67SJoel Becker	  allows selection of events to log via files in /sys/o2cb/logmask/.
4542b388c67SJoel Becker	  This option will enlarge your kernel, but it allows debugging of
4552b388c67SJoel Becker	  ocfs2 filesystem issues.
4562b388c67SJoel Becker
4575a58c3efSJan Karaconfig OCFS2_DEBUG_FS
4585a58c3efSJan Kara	bool "OCFS2 expensive checks"
4595a58c3efSJan Kara	depends on OCFS2_FS
4605a58c3efSJan Kara	default n
4615a58c3efSJan Kara	help
4625a58c3efSJan Kara	  This option will enable expensive consistency checks. Enable
4635a58c3efSJan Kara	  this option for debugging only as it is likely to decrease
4645a58c3efSJan Kara	  performance of the filesystem.
4655a58c3efSJan Kara
46625fad945SRandy Dunlapendif # BLOCK
46725fad945SRandy Dunlap
46825fad945SRandy Dunlapconfig DNOTIFY
46925fad945SRandy Dunlap	bool "Dnotify support"
47025fad945SRandy Dunlap	default y
4711da177e4SLinus Torvalds	help
47225fad945SRandy Dunlap	  Dnotify is a directory-based per-fd file change notification system
47325fad945SRandy Dunlap	  that uses signals to communicate events to user-space.  There exist
47425fad945SRandy Dunlap	  superior alternatives, but some applications may still rely on
47525fad945SRandy Dunlap	  dnotify.
4761da177e4SLinus Torvalds
47725fad945SRandy Dunlap	  If unsure, say Y.
4789361401eSDavid Howells
4790eeca283SRobert Loveconfig INOTIFY
4800eeca283SRobert Love	bool "Inotify file change notification support"
4810eeca283SRobert Love	default y
4820eeca283SRobert Love	---help---
4832d9048e2SAmy Griffis	  Say Y here to enable inotify support.  Inotify is a file change
4842d9048e2SAmy Griffis	  notification system and a replacement for dnotify.  Inotify fixes
4852d9048e2SAmy Griffis	  numerous shortcomings in dnotify and introduces several new features
4862d9048e2SAmy Griffis	  including multiple file events, one-shot support, and unmount
4873de11748SRobert Love	  notification.
4883de11748SRobert Love
489e403149cSDirk Hohndel	  For more information, see <file:Documentation/filesystems/inotify.txt>
4900eeca283SRobert Love
4910eeca283SRobert Love	  If unsure, say Y.
4920eeca283SRobert Love
4932d9048e2SAmy Griffisconfig INOTIFY_USER
4942d9048e2SAmy Griffis	bool "Inotify support for userspace"
4952d9048e2SAmy Griffis	depends on INOTIFY
4962d9048e2SAmy Griffis	default y
4972d9048e2SAmy Griffis	---help---
4982d9048e2SAmy Griffis	  Say Y here to enable inotify support for userspace, including the
4992d9048e2SAmy Griffis	  associated system calls.  Inotify allows monitoring of both files and
5002d9048e2SAmy Griffis	  directories via a single open fd.  Events are read from the file
5012d9048e2SAmy Griffis	  descriptor, which is also select()- and poll()-able.
5022d9048e2SAmy Griffis
503e403149cSDirk Hohndel	  For more information, see <file:Documentation/filesystems/inotify.txt>
5042d9048e2SAmy Griffis
5052d9048e2SAmy Griffis	  If unsure, say Y.
5062d9048e2SAmy Griffis
5071da177e4SLinus Torvaldsconfig QUOTA
5081da177e4SLinus Torvalds	bool "Quota support"
5091da177e4SLinus Torvalds	help
5101da177e4SLinus Torvalds	  If you say Y here, you will be able to set per user limits for disk
5111da177e4SLinus Torvalds	  usage (also called disk quotas). Currently, it works for the
5121da177e4SLinus Torvalds	  ext2, ext3, and reiserfs file system. ext3 also supports journalled
5131da177e4SLinus Torvalds	  quotas for which you don't need to run quotacheck(8) after an unclean
514919532a5SAdrian Bunk	  shutdown.
515919532a5SAdrian Bunk	  For further details, read the Quota mini-HOWTO, available from
5161da177e4SLinus Torvalds	  <http://www.tldp.org/docs.html#howto>, or the documentation provided
5171da177e4SLinus Torvalds	  with the quota tools. Probably the quota support is only useful for
5181da177e4SLinus Torvalds	  multi user systems. If unsure, say N.
5191da177e4SLinus Torvalds
5208e893469SJan Karaconfig QUOTA_NETLINK_INTERFACE
5218e893469SJan Kara	bool "Report quota messages through netlink interface"
5228e893469SJan Kara	depends on QUOTA && NET
5238e893469SJan Kara	help
5248e893469SJan Kara	  If you say Y here, quota warnings (about exceeding softlimit, reaching
5258e893469SJan Kara	  hardlimit, etc.) will be reported through netlink interface. If unsure,
5268e893469SJan Kara	  say Y.
5278e893469SJan Kara
5288e893469SJan Karaconfig PRINT_QUOTA_WARNING
5298e893469SJan Kara	bool "Print quota warnings to console (OBSOLETE)"
5308e893469SJan Kara	depends on QUOTA
5318e893469SJan Kara	default y
5328e893469SJan Kara	help
5338e893469SJan Kara	  If you say Y here, quota warnings (about exceeding softlimit, reaching
5348e893469SJan Kara	  hardlimit, etc.) will be printed to the process' controlling terminal.
5358e893469SJan Kara	  Note that this behavior is currently deprecated and may go away in
5368e893469SJan Kara	  future. Please use notification via netlink socket instead.
5378e893469SJan Kara
5381da177e4SLinus Torvaldsconfig QFMT_V1
5391da177e4SLinus Torvalds	tristate "Old quota format support"
5401da177e4SLinus Torvalds	depends on QUOTA
5411da177e4SLinus Torvalds	help
5421da177e4SLinus Torvalds	  This quota format was (is) used by kernels earlier than 2.4.22. If
5431da177e4SLinus Torvalds	  you have quota working and you don't want to convert to new quota
5441da177e4SLinus Torvalds	  format say Y here.
5451da177e4SLinus Torvalds
5461da177e4SLinus Torvaldsconfig QFMT_V2
5471da177e4SLinus Torvalds	tristate "Quota format v2 support"
5481da177e4SLinus Torvalds	depends on QUOTA
5491da177e4SLinus Torvalds	help
5501da177e4SLinus Torvalds	  This quota format allows using quotas with 32-bit UIDs/GIDs. If you
551919532a5SAdrian Bunk	  need this functionality say Y here.
5521da177e4SLinus Torvalds
5531da177e4SLinus Torvaldsconfig QUOTACTL
5541da177e4SLinus Torvalds	bool
5551da177e4SLinus Torvalds	depends on XFS_QUOTA || QUOTA
5561da177e4SLinus Torvalds	default y
5571da177e4SLinus Torvalds
5581da177e4SLinus Torvaldsconfig AUTOFS_FS
5591da177e4SLinus Torvalds	tristate "Kernel automounter support"
5601da177e4SLinus Torvalds	help
5611da177e4SLinus Torvalds	  The automounter is a tool to automatically mount remote file systems
5621da177e4SLinus Torvalds	  on demand. This implementation is partially kernel-based to reduce
5631da177e4SLinus Torvalds	  overhead in the already-mounted case; this is unlike the BSD
5641da177e4SLinus Torvalds	  automounter (amd), which is a pure user space daemon.
5651da177e4SLinus Torvalds
5661da177e4SLinus Torvalds	  To use the automounter you need the user-space tools from the autofs
5671da177e4SLinus Torvalds	  package; you can find the location in <file:Documentation/Changes>.
5681da177e4SLinus Torvalds	  You also want to answer Y to "NFS file system support", below.
5691da177e4SLinus Torvalds
5701da177e4SLinus Torvalds	  If you want to use the newer version of the automounter with more
5711da177e4SLinus Torvalds	  features, say N here and say Y to "Kernel automounter v4 support",
5721da177e4SLinus Torvalds	  below.
5731da177e4SLinus Torvalds
5741da177e4SLinus Torvalds	  To compile this support as a module, choose M here: the module will be
5751da177e4SLinus Torvalds	  called autofs.
5761da177e4SLinus Torvalds
5771da177e4SLinus Torvalds	  If you are not a part of a fairly large, distributed network, you
5781da177e4SLinus Torvalds	  probably do not need an automounter, and can say N here.
5791da177e4SLinus Torvalds
5801da177e4SLinus Torvaldsconfig AUTOFS4_FS
5811da177e4SLinus Torvalds	tristate "Kernel automounter version 4 support (also supports v3)"
5821da177e4SLinus Torvalds	help
5831da177e4SLinus Torvalds	  The automounter is a tool to automatically mount remote file systems
5841da177e4SLinus Torvalds	  on demand. This implementation is partially kernel-based to reduce
5851da177e4SLinus Torvalds	  overhead in the already-mounted case; this is unlike the BSD
5861da177e4SLinus Torvalds	  automounter (amd), which is a pure user space daemon.
5871da177e4SLinus Torvalds
5881da177e4SLinus Torvalds	  To use the automounter you need the user-space tools from
5891da177e4SLinus Torvalds	  <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
5901da177e4SLinus Torvalds	  want to answer Y to "NFS file system support", below.
5911da177e4SLinus Torvalds
5921da177e4SLinus Torvalds	  To compile this support as a module, choose M here: the module will be
5931da177e4SLinus Torvalds	  called autofs4.  You will need to add "alias autofs autofs4" to your
5941da177e4SLinus Torvalds	  modules configuration file.
5951da177e4SLinus Torvalds
5961da177e4SLinus Torvalds	  If you are not a part of a fairly large, distributed network or
5971da177e4SLinus Torvalds	  don't have a laptop which needs to dynamically reconfigure to the
5981da177e4SLinus Torvalds	  local network, you probably do not need an automounter, and can say
5991da177e4SLinus Torvalds	  N here.
6001da177e4SLinus Torvalds
60104578f17SMiklos Szerediconfig FUSE_FS
60204578f17SMiklos Szeredi	tristate "Filesystem in Userspace support"
60304578f17SMiklos Szeredi	help
60404578f17SMiklos Szeredi	  With FUSE it is possible to implement a fully functional filesystem
60504578f17SMiklos Szeredi	  in a userspace program.
60604578f17SMiklos Szeredi
60704578f17SMiklos Szeredi	  There's also companion library: libfuse.  This library along with
60804578f17SMiklos Szeredi	  utilities is available from the FUSE homepage:
60904578f17SMiklos Szeredi	  <http://fuse.sourceforge.net/>
61004578f17SMiklos Szeredi
611909021eaSMiklos Szeredi	  See <file:Documentation/filesystems/fuse.txt> for more information.
612909021eaSMiklos Szeredi	  See <file:Documentation/Changes> for needed library/utility version.
613909021eaSMiklos Szeredi
61404578f17SMiklos Szeredi	  If you want to develop a userspace FS, or if you want to use
61504578f17SMiklos Szeredi	  a filesystem based on FUSE, answer Y or M.
61604578f17SMiklos Szeredi
617f2fbc6c2SRandy Dunlapconfig GENERIC_ACL
618f2fbc6c2SRandy Dunlap	bool
619f2fbc6c2SRandy Dunlap	select FS_POSIX_ACL
620f2fbc6c2SRandy Dunlap
6219361401eSDavid Howellsif BLOCK
6221da177e4SLinus Torvaldsmenu "CD-ROM/DVD Filesystems"
6231da177e4SLinus Torvalds
6241da177e4SLinus Torvaldsconfig ISO9660_FS
6251da177e4SLinus Torvalds	tristate "ISO 9660 CDROM file system support"
6261da177e4SLinus Torvalds	help
6271da177e4SLinus Torvalds	  This is the standard file system used on CD-ROMs.  It was previously
6281da177e4SLinus Torvalds	  known as "High Sierra File System" and is called "hsfs" on other
6291da177e4SLinus Torvalds	  Unix systems.  The so-called Rock-Ridge extensions which allow for
6301da177e4SLinus Torvalds	  long Unix filenames and symbolic links are also supported by this
6311da177e4SLinus Torvalds	  driver.  If you have a CD-ROM drive and want to do more with it than
6321da177e4SLinus Torvalds	  just listen to audio CDs and watch its LEDs, say Y (and read
6331da177e4SLinus Torvalds	  <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO,
6341da177e4SLinus Torvalds	  available from <http://www.tldp.org/docs.html#howto>), thereby
6351da177e4SLinus Torvalds	  enlarging your kernel by about 27 KB; otherwise say N.
6361da177e4SLinus Torvalds
6371da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
6381da177e4SLinus Torvalds	  module will be called isofs.
6391da177e4SLinus Torvalds
6401da177e4SLinus Torvaldsconfig JOLIET
6411da177e4SLinus Torvalds	bool "Microsoft Joliet CDROM extensions"
6421da177e4SLinus Torvalds	depends on ISO9660_FS
6431da177e4SLinus Torvalds	select NLS
6441da177e4SLinus Torvalds	help
6451da177e4SLinus Torvalds	  Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
6461da177e4SLinus Torvalds	  which allows for long filenames in unicode format (unicode is the
6471da177e4SLinus Torvalds	  new 16 bit character code, successor to ASCII, which encodes the
6481da177e4SLinus Torvalds	  characters of almost all languages of the world; see
6491da177e4SLinus Torvalds	  <http://www.unicode.org/> for more information).  Say Y here if you
6501da177e4SLinus Torvalds	  want to be able to read Joliet CD-ROMs under Linux.
6511da177e4SLinus Torvalds
6521da177e4SLinus Torvaldsconfig ZISOFS
6531da177e4SLinus Torvalds	bool "Transparent decompression extension"
6541da177e4SLinus Torvalds	depends on ISO9660_FS
6551da177e4SLinus Torvalds	select ZLIB_INFLATE
6561da177e4SLinus Torvalds	help
6571da177e4SLinus Torvalds	  This is a Linux-specific extension to RockRidge which lets you store
6581da177e4SLinus Torvalds	  data in compressed form on a CD-ROM and have it transparently
6591da177e4SLinus Torvalds	  decompressed when the CD-ROM is accessed.  See
6601da177e4SLinus Torvalds	  <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
6611da177e4SLinus Torvalds	  necessary to create such a filesystem.  Say Y here if you want to be
6621da177e4SLinus Torvalds	  able to read such compressed CD-ROMs.
6631da177e4SLinus Torvalds
6641da177e4SLinus Torvaldsconfig UDF_FS
6651da177e4SLinus Torvalds	tristate "UDF file system support"
6661da177e4SLinus Torvalds	help
6671da177e4SLinus Torvalds	  This is the new file system used on some CD-ROMs and DVDs. Say Y if
6681da177e4SLinus Torvalds	  you intend to mount DVD discs or CDRW's written in packet mode, or
6691da177e4SLinus Torvalds	  if written to by other UDF utilities, such as DirectCD.
6701da177e4SLinus Torvalds	  Please read <file:Documentation/filesystems/udf.txt>.
6711da177e4SLinus Torvalds
6721da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
6731da177e4SLinus Torvalds	  module will be called udf.
6741da177e4SLinus Torvalds
6751da177e4SLinus Torvalds	  If unsure, say N.
6761da177e4SLinus Torvalds
6771da177e4SLinus Torvaldsconfig UDF_NLS
6781da177e4SLinus Torvalds	bool
6791da177e4SLinus Torvalds	default y
6801da177e4SLinus Torvalds	depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
6811da177e4SLinus Torvalds
6821da177e4SLinus Torvaldsendmenu
68325fad945SRandy Dunlapendif # BLOCK
6841da177e4SLinus Torvalds
6859361401eSDavid Howellsif BLOCK
6861da177e4SLinus Torvaldsmenu "DOS/FAT/NT Filesystems"
6871da177e4SLinus Torvalds
6881da177e4SLinus Torvaldsconfig FAT_FS
6891da177e4SLinus Torvalds	tristate
6901da177e4SLinus Torvalds	select NLS
6911da177e4SLinus Torvalds	help
6921da177e4SLinus Torvalds	  If you want to use one of the FAT-based file systems (the MS-DOS and
6931da177e4SLinus Torvalds	  VFAT (Windows 95) file systems), then you must say Y or M here
6941da177e4SLinus Torvalds	  to include FAT support. You will then be able to mount partitions or
6951da177e4SLinus Torvalds	  diskettes with FAT-based file systems and transparently access the
6961da177e4SLinus Torvalds	  files on them, i.e. MSDOS files will look and behave just like all
6971da177e4SLinus Torvalds	  other Unix files.
6981da177e4SLinus Torvalds
6991da177e4SLinus Torvalds	  This FAT support is not a file system in itself, it only provides
7001da177e4SLinus Torvalds	  the foundation for the other file systems. You will have to say Y or
7011da177e4SLinus Torvalds	  M to at least one of "MSDOS fs support" or "VFAT fs support" in
7021da177e4SLinus Torvalds	  order to make use of it.
7031da177e4SLinus Torvalds
7041da177e4SLinus Torvalds	  Another way to read and write MSDOS floppies and hard drive
7051da177e4SLinus Torvalds	  partitions from within Linux (but not transparently) is with the
7061da177e4SLinus Torvalds	  mtools ("man mtools") program suite. You don't need to say Y here in
7071da177e4SLinus Torvalds	  order to do that.
7081da177e4SLinus Torvalds
7091da177e4SLinus Torvalds	  If you need to move large files on floppies between a DOS and a
7101da177e4SLinus Torvalds	  Linux box, say Y here, mount the floppy under Linux with an MSDOS
7111da177e4SLinus Torvalds	  file system and use GNU tar's M option. GNU tar is a program
7121da177e4SLinus Torvalds	  available for Unix and DOS ("man tar" or "info tar").
7131da177e4SLinus Torvalds
7141da177e4SLinus Torvalds	  The FAT support will enlarge your kernel by about 37 KB. If unsure,
7151da177e4SLinus Torvalds	  say Y.
7161da177e4SLinus Torvalds
7171da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
7181da177e4SLinus Torvalds	  fat.  Note that if you compile the FAT support as a module, you
7191da177e4SLinus Torvalds	  cannot compile any of the FAT-based file systems into the kernel
7201da177e4SLinus Torvalds	  -- they will have to be modules as well.
7211da177e4SLinus Torvalds
7221da177e4SLinus Torvaldsconfig MSDOS_FS
7231da177e4SLinus Torvalds	tristate "MSDOS fs support"
7241da177e4SLinus Torvalds	select FAT_FS
7251da177e4SLinus Torvalds	help
7261da177e4SLinus Torvalds	  This allows you to mount MSDOS partitions of your hard drive (unless
7271da177e4SLinus Torvalds	  they are compressed; to access compressed MSDOS partitions under
7281da177e4SLinus Torvalds	  Linux, you can either use the DOS emulator DOSEMU, described in the
7291da177e4SLinus Torvalds	  DOSEMU-HOWTO, available from
7301da177e4SLinus Torvalds	  <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
7311da177e4SLinus Torvalds	  <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
7321da177e4SLinus Torvalds	  intend to use dosemu with a non-compressed MSDOS partition, say Y
7331da177e4SLinus Torvalds	  here) and MSDOS floppies. This means that file access becomes
7341da177e4SLinus Torvalds	  transparent, i.e. the MSDOS files look and behave just like all
7351da177e4SLinus Torvalds	  other Unix files.
7361da177e4SLinus Torvalds
7371da177e4SLinus Torvalds	  If you have Windows 95 or Windows NT installed on your MSDOS
7381da177e4SLinus Torvalds	  partitions, you should use the VFAT file system (say Y to "VFAT fs
7391da177e4SLinus Torvalds	  support" below), or you will not be able to see the long filenames
7401da177e4SLinus Torvalds	  generated by Windows 95 / Windows NT.
7411da177e4SLinus Torvalds
7421da177e4SLinus Torvalds	  This option will enlarge your kernel by about 7 KB. If unsure,
7431da177e4SLinus Torvalds	  answer Y. This will only work if you said Y to "DOS FAT fs support"
7441da177e4SLinus Torvalds	  as well. To compile this as a module, choose M here: the module will
7451da177e4SLinus Torvalds	  be called msdos.
7461da177e4SLinus Torvalds
7471da177e4SLinus Torvaldsconfig VFAT_FS
7481da177e4SLinus Torvalds	tristate "VFAT (Windows-95) fs support"
7491da177e4SLinus Torvalds	select FAT_FS
7501da177e4SLinus Torvalds	help
7511da177e4SLinus Torvalds	  This option provides support for normal Windows file systems with
7521da177e4SLinus Torvalds	  long filenames.  That includes non-compressed FAT-based file systems
7531da177e4SLinus Torvalds	  used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
7541da177e4SLinus Torvalds	  programs from the mtools package.
7551da177e4SLinus Torvalds
7561da177e4SLinus Torvalds	  The VFAT support enlarges your kernel by about 10 KB and it only
7571da177e4SLinus Torvalds	  works if you said Y to the "DOS FAT fs support" above.  Please read
7581da177e4SLinus Torvalds	  the file <file:Documentation/filesystems/vfat.txt> for details.  If
7591da177e4SLinus Torvalds	  unsure, say Y.
7601da177e4SLinus Torvalds
7611da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
7621da177e4SLinus Torvalds	  vfat.
7631da177e4SLinus Torvalds
7641da177e4SLinus Torvaldsconfig FAT_DEFAULT_CODEPAGE
7651da177e4SLinus Torvalds	int "Default codepage for FAT"
7661da177e4SLinus Torvalds	depends on MSDOS_FS || VFAT_FS
7671da177e4SLinus Torvalds	default 437
7681da177e4SLinus Torvalds	help
7691da177e4SLinus Torvalds	  This option should be set to the codepage of your FAT filesystems.
7701da177e4SLinus Torvalds	  It can be overridden with the "codepage" mount option.
7711da177e4SLinus Torvalds	  See <file:Documentation/filesystems/vfat.txt> for more information.
7721da177e4SLinus Torvalds
7731da177e4SLinus Torvaldsconfig FAT_DEFAULT_IOCHARSET
7741da177e4SLinus Torvalds	string "Default iocharset for FAT"
7751da177e4SLinus Torvalds	depends on VFAT_FS
7761da177e4SLinus Torvalds	default "iso8859-1"
7771da177e4SLinus Torvalds	help
7781da177e4SLinus Torvalds	  Set this to the default input/output character set you'd
7791da177e4SLinus Torvalds	  like FAT to use. It should probably match the character set
7801da177e4SLinus Torvalds	  that most of your FAT filesystems use, and can be overridden
7811da177e4SLinus Torvalds	  with the "iocharset" mount option for FAT filesystems.
7821da177e4SLinus Torvalds	  Note that "utf8" is not recommended for FAT filesystems.
7831da177e4SLinus Torvalds	  If unsure, you shouldn't set "utf8" here.
7841da177e4SLinus Torvalds	  See <file:Documentation/filesystems/vfat.txt> for more information.
7851da177e4SLinus Torvalds
7861da177e4SLinus Torvaldsconfig NTFS_FS
7871da177e4SLinus Torvalds	tristate "NTFS file system support"
7881da177e4SLinus Torvalds	select NLS
7891da177e4SLinus Torvalds	help
7901da177e4SLinus Torvalds	  NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
7911da177e4SLinus Torvalds
7921da177e4SLinus Torvalds	  Saying Y or M here enables read support.  There is partial, but
7931da177e4SLinus Torvalds	  safe, write support available.  For write support you must also
7941da177e4SLinus Torvalds	  say Y to "NTFS write support" below.
7951da177e4SLinus Torvalds
7961da177e4SLinus Torvalds	  There are also a number of user-space tools available, called
7971da177e4SLinus Torvalds	  ntfsprogs.  These include ntfsundelete and ntfsresize, that work
7981da177e4SLinus Torvalds	  without NTFS support enabled in the kernel.
7991da177e4SLinus Torvalds
8001da177e4SLinus Torvalds	  This is a rewrite from scratch of Linux NTFS support and replaced
8011da177e4SLinus Torvalds	  the old NTFS code starting with Linux 2.5.11.  A backport to
8021da177e4SLinus Torvalds	  the Linux 2.4 kernel series is separately available as a patch
8031da177e4SLinus Torvalds	  from the project web site.
8041da177e4SLinus Torvalds
8051da177e4SLinus Torvalds	  For more information see <file:Documentation/filesystems/ntfs.txt>
8061da177e4SLinus Torvalds	  and <http://linux-ntfs.sourceforge.net/>.
8071da177e4SLinus Torvalds
8081da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
8091da177e4SLinus Torvalds	  module will be called ntfs.
8101da177e4SLinus Torvalds
8111da177e4SLinus Torvalds	  If you are not using Windows NT, 2000, XP or 2003 in addition to
8121da177e4SLinus Torvalds	  Linux on your computer it is safe to say N.
8131da177e4SLinus Torvalds
8141da177e4SLinus Torvaldsconfig NTFS_DEBUG
8151da177e4SLinus Torvalds	bool "NTFS debugging support"
8161da177e4SLinus Torvalds	depends on NTFS_FS
8171da177e4SLinus Torvalds	help
8181da177e4SLinus Torvalds	  If you are experiencing any problems with the NTFS file system, say
8191da177e4SLinus Torvalds	  Y here.  This will result in additional consistency checks to be
8201da177e4SLinus Torvalds	  performed by the driver as well as additional debugging messages to
8211da177e4SLinus Torvalds	  be written to the system log.  Note that debugging messages are
8221da177e4SLinus Torvalds	  disabled by default.  To enable them, supply the option debug_msgs=1
8231da177e4SLinus Torvalds	  at the kernel command line when booting the kernel or as an option
8241da177e4SLinus Torvalds	  to insmod when loading the ntfs module.  Once the driver is active,
8251da177e4SLinus Torvalds	  you can enable debugging messages by doing (as root):
8261da177e4SLinus Torvalds	  echo 1 > /proc/sys/fs/ntfs-debug
8271da177e4SLinus Torvalds	  Replacing the "1" with "0" would disable debug messages.
8281da177e4SLinus Torvalds
8291da177e4SLinus Torvalds	  If you leave debugging messages disabled, this results in little
8301da177e4SLinus Torvalds	  overhead, but enabling debug messages results in very significant
8311da177e4SLinus Torvalds	  slowdown of the system.
8321da177e4SLinus Torvalds
8331da177e4SLinus Torvalds	  When reporting bugs, please try to have available a full dump of
8341da177e4SLinus Torvalds	  debugging messages while the misbehaviour was occurring.
8351da177e4SLinus Torvalds
8361da177e4SLinus Torvaldsconfig NTFS_RW
8371da177e4SLinus Torvalds	bool "NTFS write support"
8381da177e4SLinus Torvalds	depends on NTFS_FS
8391da177e4SLinus Torvalds	help
8401da177e4SLinus Torvalds	  This enables the partial, but safe, write support in the NTFS driver.
8411da177e4SLinus Torvalds
8421da177e4SLinus Torvalds	  The only supported operation is overwriting existing files, without
8431da177e4SLinus Torvalds	  changing the file length.  No file or directory creation, deletion or
8441da177e4SLinus Torvalds	  renaming is possible.  Note only non-resident files can be written to
8451da177e4SLinus Torvalds	  so you may find that some very small files (<500 bytes or so) cannot
8461da177e4SLinus Torvalds	  be written to.
8471da177e4SLinus Torvalds
8481da177e4SLinus Torvalds	  While we cannot guarantee that it will not damage any data, we have
8491da177e4SLinus Torvalds	  so far not received a single report where the driver would have
8501da177e4SLinus Torvalds	  damaged someones data so we assume it is perfectly safe to use.
8511da177e4SLinus Torvalds
8521da177e4SLinus Torvalds	  Note:  While write support is safe in this version (a rewrite from
8531da177e4SLinus Torvalds	  scratch of the NTFS support), it should be noted that the old NTFS
8541da177e4SLinus Torvalds	  write support, included in Linux 2.5.10 and before (since 1997),
8551da177e4SLinus Torvalds	  is not safe.
8561da177e4SLinus Torvalds
8571da177e4SLinus Torvalds	  This is currently useful with TopologiLinux.  TopologiLinux is run
8581da177e4SLinus Torvalds	  on top of any DOS/Microsoft Windows system without partitioning your
8591da177e4SLinus Torvalds	  hard disk.  Unlike other Linux distributions TopologiLinux does not
8601da177e4SLinus Torvalds	  need its own partition.  For more information see
8611da177e4SLinus Torvalds	  <http://topologi-linux.sourceforge.net/>
8621da177e4SLinus Torvalds
8631da177e4SLinus Torvalds	  It is perfectly safe to say N here.
8641da177e4SLinus Torvalds
8651da177e4SLinus Torvaldsendmenu
86625fad945SRandy Dunlapendif # BLOCK
8671da177e4SLinus Torvalds
8681da177e4SLinus Torvaldsmenu "Pseudo filesystems"
8691da177e4SLinus Torvalds
8701da177e4SLinus Torvaldsconfig PROC_FS
87169755652SH. Peter Anvin	bool "/proc file system support" if EMBEDDED
87269755652SH. Peter Anvin	default y
8731da177e4SLinus Torvalds	help
8741da177e4SLinus Torvalds	  This is a virtual file system providing information about the status
8751da177e4SLinus Torvalds	  of the system. "Virtual" means that it doesn't take up any space on
8761da177e4SLinus Torvalds	  your hard disk: the files are created on the fly by the kernel when
8771da177e4SLinus Torvalds	  you try to access them. Also, you cannot read the files with older
8781da177e4SLinus Torvalds	  version of the program less: you need to use more or cat.
8791da177e4SLinus Torvalds
8801da177e4SLinus Torvalds	  It's totally cool; for example, "cat /proc/interrupts" gives
8811da177e4SLinus Torvalds	  information about what the different IRQs are used for at the moment
8821da177e4SLinus Torvalds	  (there is a small number of Interrupt ReQuest lines in your computer
8831da177e4SLinus Torvalds	  that are used by the attached devices to gain the CPU's attention --
8841da177e4SLinus Torvalds	  often a source of trouble if two devices are mistakenly configured
8851da177e4SLinus Torvalds	  to use the same IRQ). The program procinfo to display some
8861da177e4SLinus Torvalds	  information about your system gathered from the /proc file system.
8871da177e4SLinus Torvalds
8881da177e4SLinus Torvalds	  Before you can use the /proc file system, it has to be mounted,
8891da177e4SLinus Torvalds	  meaning it has to be given a location in the directory hierarchy.
8901da177e4SLinus Torvalds	  That location should be /proc. A command such as "mount -t proc proc
8911da177e4SLinus Torvalds	  /proc" or the equivalent line in /etc/fstab does the job.
8921da177e4SLinus Torvalds
8931da177e4SLinus Torvalds	  The /proc file system is explained in the file
8941da177e4SLinus Torvalds	  <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
8951da177e4SLinus Torvalds	  ("man 5 proc").
8961da177e4SLinus Torvalds
8971da177e4SLinus Torvalds	  This option will enlarge your kernel by about 67 KB. Several
8981da177e4SLinus Torvalds	  programs depend on this, so everyone should say Y here.
8991da177e4SLinus Torvalds
9001da177e4SLinus Torvaldsconfig PROC_KCORE
9011da177e4SLinus Torvalds	bool "/proc/kcore support" if !ARM
9021da177e4SLinus Torvalds	depends on PROC_FS && MMU
9031da177e4SLinus Torvalds
904666bfddbSVivek Goyalconfig PROC_VMCORE
905666bfddbSVivek Goyal        bool "/proc/vmcore support (EXPERIMENTAL)"
90605970d47SManeesh Soni        depends on PROC_FS && EXPERIMENTAL && CRASH_DUMP
90768250ba5SVivek Goyal	default y
908666bfddbSVivek Goyal        help
909666bfddbSVivek Goyal        Exports the dump image of crashed kernel in ELF format.
910666bfddbSVivek Goyal
911b89a8171SEric W. Biedermanconfig PROC_SYSCTL
912b89a8171SEric W. Biederman	bool "Sysctl support (/proc/sys)" if EMBEDDED
913b89a8171SEric W. Biederman	depends on PROC_FS
914b89a8171SEric W. Biederman	select SYSCTL
915b89a8171SEric W. Biederman	default y
916b89a8171SEric W. Biederman	---help---
917b89a8171SEric W. Biederman	  The sysctl interface provides a means of dynamically changing
918b89a8171SEric W. Biederman	  certain kernel parameters and variables on the fly without requiring
919b89a8171SEric W. Biederman	  a recompile of the kernel or reboot of the system.  The primary
920b89a8171SEric W. Biederman	  interface is through /proc/sys.  If you say Y here a tree of
921b89a8171SEric W. Biederman	  modifiable sysctl entries will be generated beneath the
922b89a8171SEric W. Biederman          /proc/sys directory. They are explained in the files
923b89a8171SEric W. Biederman	  in <file:Documentation/sysctl/>.  Note that enabling this
924b89a8171SEric W. Biederman	  option will enlarge the kernel by at least 8 KB.
925b89a8171SEric W. Biederman
926b89a8171SEric W. Biederman	  As it is generally a good thing, you should say Y here unless
927b89a8171SEric W. Biederman	  building a kernel for install/rescue disks or your system is very
928b89a8171SEric W. Biederman	  limited in memory.
929b89a8171SEric W. Biederman
9301da177e4SLinus Torvaldsconfig SYSFS
9311da177e4SLinus Torvalds	bool "sysfs file system support" if EMBEDDED
9321da177e4SLinus Torvalds	default y
9331da177e4SLinus Torvalds	help
9341da177e4SLinus Torvalds	The sysfs filesystem is a virtual filesystem that the kernel uses to
9351da177e4SLinus Torvalds	export internal kernel objects, their attributes, and their
9361da177e4SLinus Torvalds	relationships to one another.
9371da177e4SLinus Torvalds
9381da177e4SLinus Torvalds	Users can use sysfs to ascertain useful information about the running
9391da177e4SLinus Torvalds	kernel, such as the devices the kernel has discovered on each bus and
9401da177e4SLinus Torvalds	which driver each is bound to. sysfs can also be used to tune devices
9411da177e4SLinus Torvalds	and other kernel subsystems.
9421da177e4SLinus Torvalds
9431da177e4SLinus Torvalds	Some system agents rely on the information in sysfs to operate.
9441da177e4SLinus Torvalds	/sbin/hotplug uses device and object attributes in sysfs to assist in
94503a67a46SJan Engelhardt	delegating policy decisions, like persistently naming devices.
9461da177e4SLinus Torvalds
9471da177e4SLinus Torvalds	sysfs is currently used by the block subsystem to mount the root
9481da177e4SLinus Torvalds	partition.  If sysfs is disabled you must specify the boot device on
9491da177e4SLinus Torvalds	the kernel boot command line via its major and minor numbers.  For
9501da177e4SLinus Torvalds	example, "root=03:01" for /dev/hda1.
9511da177e4SLinus Torvalds
9521da177e4SLinus Torvalds	Designers of embedded systems may wish to say N here to conserve space.
9531da177e4SLinus Torvalds
9541da177e4SLinus Torvaldsconfig TMPFS
9551da177e4SLinus Torvalds	bool "Virtual memory file system support (former shm fs)"
9561da177e4SLinus Torvalds	help
9571da177e4SLinus Torvalds	  Tmpfs is a file system which keeps all files in virtual memory.
9581da177e4SLinus Torvalds
9591da177e4SLinus Torvalds	  Everything in tmpfs is temporary in the sense that no files will be
9601da177e4SLinus Torvalds	  created on your hard drive. The files live in memory and swap
9611da177e4SLinus Torvalds	  space. If you unmount a tmpfs instance, everything stored therein is
9621da177e4SLinus Torvalds	  lost.
9631da177e4SLinus Torvalds
9641da177e4SLinus Torvalds	  See <file:Documentation/filesystems/tmpfs.txt> for details.
9651da177e4SLinus Torvalds
96639f0247dSAndreas Gruenbacherconfig TMPFS_POSIX_ACL
96739f0247dSAndreas Gruenbacher	bool "Tmpfs POSIX Access Control Lists"
96839f0247dSAndreas Gruenbacher	depends on TMPFS
96939f0247dSAndreas Gruenbacher	select GENERIC_ACL
97039f0247dSAndreas Gruenbacher	help
97139f0247dSAndreas Gruenbacher	  POSIX Access Control Lists (ACLs) support permissions for users and
97239f0247dSAndreas Gruenbacher	  groups beyond the owner/group/world scheme.
97339f0247dSAndreas Gruenbacher
97439f0247dSAndreas Gruenbacher	  To learn more about Access Control Lists, visit the POSIX ACLs for
97539f0247dSAndreas Gruenbacher	  Linux website <http://acl.bestbits.at/>.
97639f0247dSAndreas Gruenbacher
97739f0247dSAndreas Gruenbacher	  If you don't know what Access Control Lists are, say N.
97839f0247dSAndreas Gruenbacher
9791da177e4SLinus Torvaldsconfig HUGETLBFS
9801da177e4SLinus Torvalds	bool "HugeTLB file system support"
981dd950587SPaul Mundt	depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || BROKEN
982dda27d1aSArthur Othieno	help
983dda27d1aSArthur Othieno	  hugetlbfs is a filesystem backing for HugeTLB pages, based on
984dda27d1aSArthur Othieno	  ramfs. For architectures that support it, say Y here and read
985dda27d1aSArthur Othieno	  <file:Documentation/vm/hugetlbpage.txt> for details.
986dda27d1aSArthur Othieno
987dda27d1aSArthur Othieno	  If unsure, say N.
9881da177e4SLinus Torvalds
9891da177e4SLinus Torvaldsconfig HUGETLB_PAGE
9901da177e4SLinus Torvalds	def_bool HUGETLBFS
9911da177e4SLinus Torvalds
9927063fbf2SJoel Beckerconfig CONFIGFS_FS
99302ac0499SJoel Becker	tristate "Userspace-driven configuration filesystem"
99402ac0499SJoel Becker	depends on SYSFS
9957063fbf2SJoel Becker	help
9967063fbf2SJoel Becker	  configfs is a ram-based filesystem that provides the converse
9977063fbf2SJoel Becker	  of sysfs's functionality. Where sysfs is a filesystem-based
9987063fbf2SJoel Becker	  view of kernel objects, configfs is a filesystem-based manager
9997063fbf2SJoel Becker	  of kernel objects, or config_items.
10007063fbf2SJoel Becker
10017063fbf2SJoel Becker	  Both sysfs and configfs can and should exist together on the
10027063fbf2SJoel Becker	  same system. One is not a replacement for the other.
10037063fbf2SJoel Becker
10041da177e4SLinus Torvaldsendmenu
10051da177e4SLinus Torvalds
10061da177e4SLinus Torvaldsmenu "Miscellaneous filesystems"
10071da177e4SLinus Torvalds
10081da177e4SLinus Torvaldsconfig ADFS_FS
10091da177e4SLinus Torvalds	tristate "ADFS file system support (EXPERIMENTAL)"
10109361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
10111da177e4SLinus Torvalds	help
10121da177e4SLinus Torvalds	  The Acorn Disc Filing System is the standard file system of the
10131da177e4SLinus Torvalds	  RiscOS operating system which runs on Acorn's ARM-based Risc PC
10141da177e4SLinus Torvalds	  systems and the Acorn Archimedes range of machines. If you say Y
10151da177e4SLinus Torvalds	  here, Linux will be able to read from ADFS partitions on hard drives
10161da177e4SLinus Torvalds	  and from ADFS-formatted floppy discs. If you also want to be able to
10171da177e4SLinus Torvalds	  write to those devices, say Y to "ADFS write support" below.
10181da177e4SLinus Torvalds
10191da177e4SLinus Torvalds	  The ADFS partition should be the first partition (i.e.,
10201da177e4SLinus Torvalds	  /dev/[hs]d?1) on each of your drives. Please read the file
10211da177e4SLinus Torvalds	  <file:Documentation/filesystems/adfs.txt> for further details.
10221da177e4SLinus Torvalds
10231da177e4SLinus Torvalds	  To compile this code as a module, choose M here: the module will be
10241da177e4SLinus Torvalds	  called adfs.
10251da177e4SLinus Torvalds
10261da177e4SLinus Torvalds	  If unsure, say N.
10271da177e4SLinus Torvalds
10281da177e4SLinus Torvaldsconfig ADFS_FS_RW
10291da177e4SLinus Torvalds	bool "ADFS write support (DANGEROUS)"
10301da177e4SLinus Torvalds	depends on ADFS_FS
10311da177e4SLinus Torvalds	help
10321da177e4SLinus Torvalds	  If you say Y here, you will be able to write to ADFS partitions on
10331da177e4SLinus Torvalds	  hard drives and ADFS-formatted floppy disks. This is experimental
10341da177e4SLinus Torvalds	  codes, so if you're unsure, say N.
10351da177e4SLinus Torvalds
10361da177e4SLinus Torvaldsconfig AFFS_FS
10371da177e4SLinus Torvalds	tristate "Amiga FFS file system support (EXPERIMENTAL)"
10389361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
10391da177e4SLinus Torvalds	help
10401da177e4SLinus Torvalds	  The Fast File System (FFS) is the common file system used on hard
10411da177e4SLinus Torvalds	  disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20).  Say Y
10421da177e4SLinus Torvalds	  if you want to be able to read and write files from and to an Amiga
10431da177e4SLinus Torvalds	  FFS partition on your hard drive.  Amiga floppies however cannot be
10441da177e4SLinus Torvalds	  read with this driver due to an incompatibility of the floppy
10451da177e4SLinus Torvalds	  controller used in an Amiga and the standard floppy controller in
10461da177e4SLinus Torvalds	  PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
10471da177e4SLinus Torvalds	  and <file:fs/affs/Changes>.
10481da177e4SLinus Torvalds
10491da177e4SLinus Torvalds	  With this driver you can also mount disk files used by Bernd
10501da177e4SLinus Torvalds	  Schmidt's Un*X Amiga Emulator
10511da177e4SLinus Torvalds	  (<http://www.freiburg.linux.de/~uae/>).
10521da177e4SLinus Torvalds	  If you want to do this, you will also need to say Y or M to "Loop
10531da177e4SLinus Torvalds	  device support", above.
10541da177e4SLinus Torvalds
10551da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
10561da177e4SLinus Torvalds	  module will be called affs.  If unsure, say N.
10571da177e4SLinus Torvalds
1058237fead6SMichael Halcrowconfig ECRYPT_FS
1059237fead6SMichael Halcrow	tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
106088b4a07eSMichael Halcrow	depends on EXPERIMENTAL && KEYS && CRYPTO && NET
1061237fead6SMichael Halcrow	help
1062237fead6SMichael Halcrow	  Encrypted filesystem that operates on the VFS layer.  See
1063e403149cSDirk Hohndel	  <file:Documentation/filesystems/ecryptfs.txt> to learn more about
1064237fead6SMichael Halcrow	  eCryptfs.  Userspace components are required and can be
1065237fead6SMichael Halcrow	  obtained from <http://ecryptfs.sf.net>.
1066237fead6SMichael Halcrow
1067237fead6SMichael Halcrow	  To compile this file system support as a module, choose M here: the
1068237fead6SMichael Halcrow	  module will be called ecryptfs.
1069237fead6SMichael Halcrow
10701da177e4SLinus Torvaldsconfig HFS_FS
10711da177e4SLinus Torvalds	tristate "Apple Macintosh file system support (EXPERIMENTAL)"
10729361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
1073878129a3SLennert Buytenhek	select NLS
10741da177e4SLinus Torvalds	help
10751da177e4SLinus Torvalds	  If you say Y here, you will be able to mount Macintosh-formatted
10761da177e4SLinus Torvalds	  floppy disks and hard drive partitions with full read-write access.
1077889c94a1SJohann Felix Soden	  Please read <file:Documentation/filesystems/hfs.txt> to learn about
1078889c94a1SJohann Felix Soden	  the available mount options.
10791da177e4SLinus Torvalds
10801da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
10811da177e4SLinus Torvalds	  module will be called hfs.
10821da177e4SLinus Torvalds
10831da177e4SLinus Torvaldsconfig HFSPLUS_FS
10841da177e4SLinus Torvalds	tristate "Apple Extended HFS file system support"
10859361401eSDavid Howells	depends on BLOCK
10861da177e4SLinus Torvalds	select NLS
10871da177e4SLinus Torvalds	select NLS_UTF8
10881da177e4SLinus Torvalds	help
10891da177e4SLinus Torvalds	  If you say Y here, you will be able to mount extended format
10901da177e4SLinus Torvalds	  Macintosh-formatted hard drive partitions with full read-write access.
10911da177e4SLinus Torvalds
10921da177e4SLinus Torvalds	  This file system is often called HFS+ and was introduced with
10931da177e4SLinus Torvalds	  MacOS 8. It includes all Mac specific filesystem data such as
10941da177e4SLinus Torvalds	  data forks and creator codes, but it also has several UNIX
10951da177e4SLinus Torvalds	  style features such as file ownership and permissions.
10961da177e4SLinus Torvalds
10971da177e4SLinus Torvaldsconfig BEFS_FS
10981da177e4SLinus Torvalds	tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
10999361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
11001da177e4SLinus Torvalds	select NLS
11011da177e4SLinus Torvalds	help
11021da177e4SLinus Torvalds	  The BeOS File System (BeFS) is the native file system of Be, Inc's
11031da177e4SLinus Torvalds	  BeOS. Notable features include support for arbitrary attributes
11043cb2fcccSMatt LaPlante	  on files and directories, and database-like indices on selected
11051da177e4SLinus Torvalds	  attributes. (Also note that this driver doesn't make those features
11061da177e4SLinus Torvalds	  available at this time). It is a 64 bit filesystem, so it supports
110744c09201SMatt LaPlante	  extremely large volumes and files.
11081da177e4SLinus Torvalds
11091da177e4SLinus Torvalds	  If you use this filesystem, you should also say Y to at least one
11101da177e4SLinus Torvalds	  of the NLS (native language support) options below.
11111da177e4SLinus Torvalds
11121da177e4SLinus Torvalds	  If you don't know what this is about, say N.
11131da177e4SLinus Torvalds
11141da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be
11151da177e4SLinus Torvalds	  called befs.
11161da177e4SLinus Torvalds
11171da177e4SLinus Torvaldsconfig BEFS_DEBUG
11181da177e4SLinus Torvalds	bool "Debug BeFS"
11191da177e4SLinus Torvalds	depends on BEFS_FS
11201da177e4SLinus Torvalds	help
11211da177e4SLinus Torvalds	  If you say Y here, you can use the 'debug' mount option to enable
11221da177e4SLinus Torvalds	  debugging output from the driver.
11231da177e4SLinus Torvalds
11241da177e4SLinus Torvaldsconfig BFS_FS
11251da177e4SLinus Torvalds	tristate "BFS file system support (EXPERIMENTAL)"
11269361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
11271da177e4SLinus Torvalds	help
11281da177e4SLinus Torvalds	  Boot File System (BFS) is a file system used under SCO UnixWare to
11291da177e4SLinus Torvalds	  allow the bootloader access to the kernel image and other important
11301da177e4SLinus Torvalds	  files during the boot process.  It is usually mounted under /stand
11311da177e4SLinus Torvalds	  and corresponds to the slice marked as "STAND" in the UnixWare
11321da177e4SLinus Torvalds	  partition.  You should say Y if you want to read or write the files
11331da177e4SLinus Torvalds	  on your /stand slice from within Linux.  You then also need to say Y
11341da177e4SLinus Torvalds	  to "UnixWare slices support", below.  More information about the BFS
11351da177e4SLinus Torvalds	  file system is contained in the file
11361da177e4SLinus Torvalds	  <file:Documentation/filesystems/bfs.txt>.
11371da177e4SLinus Torvalds
11381da177e4SLinus Torvalds	  If you don't know what this is about, say N.
11391da177e4SLinus Torvalds
11401da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
11411da177e4SLinus Torvalds	  bfs.  Note that the file system of your root partition (the one
11421da177e4SLinus Torvalds	  containing the directory /) cannot be compiled as a module.
11431da177e4SLinus Torvalds
11441da177e4SLinus Torvalds
11451da177e4SLinus Torvalds
11461da177e4SLinus Torvaldsconfig EFS_FS
11471da177e4SLinus Torvalds	tristate "EFS file system support (read only) (EXPERIMENTAL)"
11489361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
11491da177e4SLinus Torvalds	help
11501da177e4SLinus Torvalds	  EFS is an older file system used for non-ISO9660 CD-ROMs and hard
11511da177e4SLinus Torvalds	  disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
11521da177e4SLinus Torvalds	  uses the XFS file system for hard disk partitions however).
11531da177e4SLinus Torvalds
11541da177e4SLinus Torvalds	  This implementation only offers read-only access. If you don't know
11551da177e4SLinus Torvalds	  what all this is about, it's safe to say N. For more information
11561da177e4SLinus Torvalds	  about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
11571da177e4SLinus Torvalds
11581da177e4SLinus Torvalds	  To compile the EFS file system support as a module, choose M here: the
11591da177e4SLinus Torvalds	  module will be called efs.
11601da177e4SLinus Torvalds
11611da177e4SLinus Torvaldsconfig JFFS2_FS
11621da177e4SLinus Torvalds	tristate "Journalling Flash File System v2 (JFFS2) support"
11631da177e4SLinus Torvalds	select CRC32
11641da177e4SLinus Torvalds	depends on MTD
11651da177e4SLinus Torvalds	help
11661da177e4SLinus Torvalds	  JFFS2 is the second generation of the Journalling Flash File System
11671da177e4SLinus Torvalds	  for use on diskless embedded devices. It provides improved wear
11681da177e4SLinus Torvalds	  levelling, compression and support for hard links. You cannot use
11691da177e4SLinus Torvalds	  this on normal block devices, only on 'MTD' devices.
11701da177e4SLinus Torvalds
11711da177e4SLinus Torvalds	  Further information on the design and implementation of JFFS2 is
11721da177e4SLinus Torvalds	  available at <http://sources.redhat.com/jffs2/>.
11731da177e4SLinus Torvalds
11741da177e4SLinus Torvaldsconfig JFFS2_FS_DEBUG
11751da177e4SLinus Torvalds	int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
11761da177e4SLinus Torvalds	depends on JFFS2_FS
11771da177e4SLinus Torvalds	default "0"
11781da177e4SLinus Torvalds	help
11791da177e4SLinus Torvalds	  This controls the amount of debugging messages produced by the JFFS2
11801da177e4SLinus Torvalds	  code. Set it to zero for use in production systems. For evaluation,
11811da177e4SLinus Torvalds	  testing and debugging, it's advisable to set it to one. This will
11821da177e4SLinus Torvalds	  enable a few assertions and will print debugging messages at the
11831da177e4SLinus Torvalds	  KERN_DEBUG loglevel, where they won't normally be visible. Level 2
11841da177e4SLinus Torvalds	  is unlikely to be useful - it enables extra debugging in certain
11851da177e4SLinus Torvalds	  areas which at one point needed debugging, but when the bugs were
11861da177e4SLinus Torvalds	  located and fixed, the detailed messages were relegated to level 2.
11871da177e4SLinus Torvalds
11881da177e4SLinus Torvalds	  If reporting bugs, please try to have available a full dump of the
11891da177e4SLinus Torvalds	  messages at debug level 1 while the misbehaviour was occurring.
11901da177e4SLinus Torvalds
11912ba72cb7SDavid Woodhouseconfig JFFS2_FS_WRITEBUFFER
11922ba72cb7SDavid Woodhouse	bool "JFFS2 write-buffering support"
1193aa98d7cfSKaiGai Kohei	depends on JFFS2_FS
11942ba72cb7SDavid Woodhouse	default y
11952ba72cb7SDavid Woodhouse	help
11962ba72cb7SDavid Woodhouse	  This enables the write-buffering support in JFFS2.
11972ba72cb7SDavid Woodhouse
11982ba72cb7SDavid Woodhouse	  This functionality is required to support JFFS2 on the following
11992ba72cb7SDavid Woodhouse	  types of flash devices:
12002ba72cb7SDavid Woodhouse	    - NAND flash
12012ba72cb7SDavid Woodhouse	    - NOR flash with transparent ECC
12022ba72cb7SDavid Woodhouse	    - DataFlash
12032ba72cb7SDavid Woodhouse
1204a6bc432eSDavid Woodhouseconfig JFFS2_FS_WBUF_VERIFY
1205a6bc432eSDavid Woodhouse	bool "Verify JFFS2 write-buffer reads"
1206a6bc432eSDavid Woodhouse	depends on JFFS2_FS_WRITEBUFFER
1207a6bc432eSDavid Woodhouse	default n
1208a6bc432eSDavid Woodhouse	help
1209a6bc432eSDavid Woodhouse	  This causes JFFS2 to read back every page written through the
1210a6bc432eSDavid Woodhouse	  write-buffer, and check for errors.
1211a6bc432eSDavid Woodhouse
12122ba72cb7SDavid Woodhouseconfig JFFS2_SUMMARY
12132ba72cb7SDavid Woodhouse	bool "JFFS2 summary support (EXPERIMENTAL)"
12142ba72cb7SDavid Woodhouse	depends on JFFS2_FS && EXPERIMENTAL
12152ba72cb7SDavid Woodhouse	default n
12162ba72cb7SDavid Woodhouse	help
12172ba72cb7SDavid Woodhouse	  This feature makes it possible to use summary information
12182ba72cb7SDavid Woodhouse	  for faster filesystem mount.
12192ba72cb7SDavid Woodhouse
12202ba72cb7SDavid Woodhouse	  The summary information can be inserted into a filesystem image
12212ba72cb7SDavid Woodhouse	  by the utility 'sumtool'.
12222ba72cb7SDavid Woodhouse
12232ba72cb7SDavid Woodhouse	  If unsure, say 'N'.
12242ba72cb7SDavid Woodhouse
12252ba72cb7SDavid Woodhouseconfig JFFS2_FS_XATTR
12262ba72cb7SDavid Woodhouse	bool "JFFS2 XATTR support (EXPERIMENTAL)"
122704510deeSKaiGai Kohei	depends on JFFS2_FS && EXPERIMENTAL
1228aa98d7cfSKaiGai Kohei	default n
1229aa98d7cfSKaiGai Kohei	help
1230aa98d7cfSKaiGai Kohei	  Extended attributes are name:value pairs associated with inodes by
1231aa98d7cfSKaiGai Kohei	  the kernel or by users (see the attr(5) manual page, or visit
1232aa98d7cfSKaiGai Kohei	  <http://acl.bestbits.at/> for details).
1233aa98d7cfSKaiGai Kohei
1234aa98d7cfSKaiGai Kohei	  If unsure, say N.
1235aa98d7cfSKaiGai Kohei
1236aa98d7cfSKaiGai Koheiconfig JFFS2_FS_POSIX_ACL
1237aa98d7cfSKaiGai Kohei	bool "JFFS2 POSIX Access Control Lists"
1238aa98d7cfSKaiGai Kohei	depends on JFFS2_FS_XATTR
1239aa98d7cfSKaiGai Kohei	default y
1240aa98d7cfSKaiGai Kohei	select FS_POSIX_ACL
1241aa98d7cfSKaiGai Kohei	help
1242aa98d7cfSKaiGai Kohei	  Posix Access Control Lists (ACLs) support permissions for users and
1243aa98d7cfSKaiGai Kohei	  groups beyond the owner/group/world scheme.
1244aa98d7cfSKaiGai Kohei
1245aa98d7cfSKaiGai Kohei	  To learn more about Access Control Lists, visit the Posix ACLs for
1246aa98d7cfSKaiGai Kohei	  Linux website <http://acl.bestbits.at/>.
1247aa98d7cfSKaiGai Kohei
1248aa98d7cfSKaiGai Kohei	  If you don't know what Access Control Lists are, say N
1249aa98d7cfSKaiGai Kohei
1250aa98d7cfSKaiGai Koheiconfig JFFS2_FS_SECURITY
1251aa98d7cfSKaiGai Kohei	bool "JFFS2 Security Labels"
1252aa98d7cfSKaiGai Kohei	depends on JFFS2_FS_XATTR
1253aa98d7cfSKaiGai Kohei	default y
1254aa98d7cfSKaiGai Kohei	help
1255aa98d7cfSKaiGai Kohei	  Security labels support alternative access control models
1256aa98d7cfSKaiGai Kohei	  implemented by security modules like SELinux.  This option
1257aa98d7cfSKaiGai Kohei	  enables an extended attribute handler for file security
1258aa98d7cfSKaiGai Kohei	  labels in the jffs2 filesystem.
1259aa98d7cfSKaiGai Kohei
1260aa98d7cfSKaiGai Kohei	  If you are not using a security module that requires using
1261aa98d7cfSKaiGai Kohei	  extended attributes for file security labels, say N.
1262aa98d7cfSKaiGai Kohei
12631da177e4SLinus Torvaldsconfig JFFS2_COMPRESSION_OPTIONS
12641da177e4SLinus Torvalds	bool "Advanced compression options for JFFS2"
12651da177e4SLinus Torvalds	depends on JFFS2_FS
12661da177e4SLinus Torvalds	default n
12671da177e4SLinus Torvalds	help
12681da177e4SLinus Torvalds	  Enabling this option allows you to explicitly choose which
12691da177e4SLinus Torvalds	  compression modules, if any, are enabled in JFFS2. Removing
12709e2de407SUwe Kleine-König	  compressors can mean you cannot read existing file systems,
12711da177e4SLinus Torvalds	  and enabling experimental compressors can mean that you
12721da177e4SLinus Torvalds	  write a file system which cannot be read by a standard kernel.
12731da177e4SLinus Torvalds
12741da177e4SLinus Torvalds	  If unsure, you should _definitely_ say 'N'.
12751da177e4SLinus Torvalds
12761da177e4SLinus Torvaldsconfig JFFS2_ZLIB
12771da177e4SLinus Torvalds	bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS
12781da177e4SLinus Torvalds	select ZLIB_INFLATE
12791da177e4SLinus Torvalds	select ZLIB_DEFLATE
12801da177e4SLinus Torvalds	depends on JFFS2_FS
12811da177e4SLinus Torvalds	default y
12821da177e4SLinus Torvalds	help
12831da177e4SLinus Torvalds	  Zlib is designed to be a free, general-purpose, legally unencumbered,
12841da177e4SLinus Torvalds	  lossless data-compression library for use on virtually any computer
12851da177e4SLinus Torvalds	  hardware and operating system. See <http://www.gzip.org/zlib/> for
12861da177e4SLinus Torvalds	  further information.
12871da177e4SLinus Torvalds
12881da177e4SLinus Torvalds	  Say 'Y' if unsure.
12891da177e4SLinus Torvalds
1290c799aca3SRichard Purdieconfig JFFS2_LZO
1291c799aca3SRichard Purdie	bool "JFFS2 LZO compression support" if JFFS2_COMPRESSION_OPTIONS
1292c799aca3SRichard Purdie	select LZO_COMPRESS
1293c799aca3SRichard Purdie	select LZO_DECOMPRESS
1294c799aca3SRichard Purdie	depends on JFFS2_FS
12953ca135e1SDavid Woodhouse	default n
1296c799aca3SRichard Purdie	help
1297c799aca3SRichard Purdie	  minilzo-based compression. Generally works better than Zlib.
1298c799aca3SRichard Purdie
12993ca135e1SDavid Woodhouse	  This feature was added in July, 2007. Say 'N' if you need
13003ca135e1SDavid Woodhouse	  compatibility with older bootloaders or kernels.
1301c799aca3SRichard Purdie
13021da177e4SLinus Torvaldsconfig JFFS2_RTIME
13031da177e4SLinus Torvalds	bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
13041da177e4SLinus Torvalds	depends on JFFS2_FS
13051da177e4SLinus Torvalds	default y
13061da177e4SLinus Torvalds	help
13071da177e4SLinus Torvalds	  Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
13081da177e4SLinus Torvalds
13091da177e4SLinus Torvaldsconfig JFFS2_RUBIN
13101da177e4SLinus Torvalds	bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
13111da177e4SLinus Torvalds	depends on JFFS2_FS
13121da177e4SLinus Torvalds	default n
13131da177e4SLinus Torvalds	help
13141da177e4SLinus Torvalds	  RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
13151da177e4SLinus Torvalds
13161da177e4SLinus Torvaldschoice
13171da177e4SLinus Torvalds	prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
13181da177e4SLinus Torvalds	default JFFS2_CMODE_PRIORITY
13191da177e4SLinus Torvalds	depends on JFFS2_FS
13201da177e4SLinus Torvalds	help
13211da177e4SLinus Torvalds	  You can set here the default compression mode of JFFS2 from
13221da177e4SLinus Torvalds	  the available compression modes. Don't touch if unsure.
13231da177e4SLinus Torvalds
13241da177e4SLinus Torvaldsconfig JFFS2_CMODE_NONE
13251da177e4SLinus Torvalds	bool "no compression"
13261da177e4SLinus Torvalds	help
13271da177e4SLinus Torvalds	  Uses no compression.
13281da177e4SLinus Torvalds
13291da177e4SLinus Torvaldsconfig JFFS2_CMODE_PRIORITY
13301da177e4SLinus Torvalds	bool "priority"
13311da177e4SLinus Torvalds	help
1332cc2e2767SMatt LaPlante	  Tries the compressors in a predefined order and chooses the first
13331da177e4SLinus Torvalds	  successful one.
13341da177e4SLinus Torvalds
13351da177e4SLinus Torvaldsconfig JFFS2_CMODE_SIZE
13361da177e4SLinus Torvalds	bool "size (EXPERIMENTAL)"
13371da177e4SLinus Torvalds	help
13381da177e4SLinus Torvalds	  Tries all compressors and chooses the one which has the smallest
13391da177e4SLinus Torvalds	  result.
13401da177e4SLinus Torvalds
13413b23c1f5SRichard Purdieconfig JFFS2_CMODE_FAVOURLZO
13423b23c1f5SRichard Purdie	bool "Favour LZO"
13433b23c1f5SRichard Purdie	help
13443b23c1f5SRichard Purdie	  Tries all compressors and chooses the one which has the smallest
13453b23c1f5SRichard Purdie	  result but gives some preference to LZO (which has faster
13463b23c1f5SRichard Purdie	  decompression) at the expense of size.
13473b23c1f5SRichard Purdie
13481da177e4SLinus Torvaldsendchoice
13491da177e4SLinus Torvalds
13501da177e4SLinus Torvaldsconfig CRAMFS
13511da177e4SLinus Torvalds	tristate "Compressed ROM file system support (cramfs)"
13529361401eSDavid Howells	depends on BLOCK
13531da177e4SLinus Torvalds	select ZLIB_INFLATE
13541da177e4SLinus Torvalds	help
13551da177e4SLinus Torvalds	  Saying Y here includes support for CramFs (Compressed ROM File
13561da177e4SLinus Torvalds	  System).  CramFs is designed to be a simple, small, and compressed
13571da177e4SLinus Torvalds	  file system for ROM based embedded systems.  CramFs is read-only,
13581da177e4SLinus Torvalds	  limited to 256MB file systems (with 16MB files), and doesn't support
13591da177e4SLinus Torvalds	  16/32 bits uid/gid, hard links and timestamps.
13601da177e4SLinus Torvalds
13611da177e4SLinus Torvalds	  See <file:Documentation/filesystems/cramfs.txt> and
13621da177e4SLinus Torvalds	  <file:fs/cramfs/README> for further information.
13631da177e4SLinus Torvalds
13641da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
13651da177e4SLinus Torvalds	  cramfs.  Note that the root file system (the one containing the
13661da177e4SLinus Torvalds	  directory /) cannot be compiled as a module.
13671da177e4SLinus Torvalds
13681da177e4SLinus Torvalds	  If unsure, say N.
13691da177e4SLinus Torvalds
13701da177e4SLinus Torvaldsconfig VXFS_FS
13711da177e4SLinus Torvalds	tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
13729361401eSDavid Howells	depends on BLOCK
13731da177e4SLinus Torvalds	help
13741da177e4SLinus Torvalds	  FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
13751da177e4SLinus Torvalds	  file system format.  VERITAS VxFS(TM) is the standard file system
13761da177e4SLinus Torvalds	  of SCO UnixWare (and possibly others) and optionally available
13771da177e4SLinus Torvalds	  for Sunsoft Solaris, HP-UX and many other operating systems.
13781da177e4SLinus Torvalds	  Currently only readonly access is supported.
13791da177e4SLinus Torvalds
13801da177e4SLinus Torvalds	  NOTE: the file system type as used by mount(1), mount(2) and
13811da177e4SLinus Torvalds	  fstab(5) is 'vxfs' as it describes the file system format, not
13821da177e4SLinus Torvalds	  the actual driver.
13831da177e4SLinus Torvalds
13841da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be
13851da177e4SLinus Torvalds	  called freevxfs.  If unsure, say N.
13861da177e4SLinus Torvalds
138725fad945SRandy Dunlapconfig MINIX_FS
138825fad945SRandy Dunlap	tristate "Minix file system support"
138925fad945SRandy Dunlap	depends on BLOCK
139025fad945SRandy Dunlap	help
139125fad945SRandy Dunlap	  Minix is a simple operating system used in many classes about OS's.
139225fad945SRandy Dunlap	  The minix file system (method to organize files on a hard disk
139325fad945SRandy Dunlap	  partition or a floppy disk) was the original file system for Linux,
139425fad945SRandy Dunlap	  but has been superseded by the second extended file system ext2fs.
139525fad945SRandy Dunlap	  You don't want to use the minix file system on your hard disk
139625fad945SRandy Dunlap	  because of certain built-in restrictions, but it is sometimes found
139725fad945SRandy Dunlap	  on older Linux floppy disks.  This option will enlarge your kernel
139825fad945SRandy Dunlap	  by about 28 KB. If unsure, say N.
139925fad945SRandy Dunlap
140025fad945SRandy Dunlap	  To compile this file system support as a module, choose M here: the
140125fad945SRandy Dunlap	  module will be called minix.  Note that the file system of your root
140225fad945SRandy Dunlap	  partition (the one containing the directory /) cannot be compiled as
140325fad945SRandy Dunlap	  a module.
140425fad945SRandy Dunlap
14051da177e4SLinus Torvalds
14061da177e4SLinus Torvaldsconfig HPFS_FS
14071da177e4SLinus Torvalds	tristate "OS/2 HPFS file system support"
14089361401eSDavid Howells	depends on BLOCK
14091da177e4SLinus Torvalds	help
14101da177e4SLinus Torvalds	  OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
14111da177e4SLinus Torvalds	  is the file system used for organizing files on OS/2 hard disk
14121da177e4SLinus Torvalds	  partitions. Say Y if you want to be able to read files from and
14131da177e4SLinus Torvalds	  write files to an OS/2 HPFS partition on your hard drive. OS/2
14141da177e4SLinus Torvalds	  floppies however are in regular MSDOS format, so you don't need this
14151da177e4SLinus Torvalds	  option in order to be able to read them. Read
14161da177e4SLinus Torvalds	  <file:Documentation/filesystems/hpfs.txt>.
14171da177e4SLinus Torvalds
14181da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
14191da177e4SLinus Torvalds	  module will be called hpfs.  If unsure, say N.
14201da177e4SLinus Torvalds
14211da177e4SLinus Torvalds
14221da177e4SLinus Torvaldsconfig QNX4FS_FS
14231da177e4SLinus Torvalds	tristate "QNX4 file system support (read only)"
14249361401eSDavid Howells	depends on BLOCK
14251da177e4SLinus Torvalds	help
14261da177e4SLinus Torvalds	  This is the file system used by the real-time operating systems
14271da177e4SLinus Torvalds	  QNX 4 and QNX 6 (the latter is also called QNX RTP).
14281da177e4SLinus Torvalds	  Further information is available at <http://www.qnx.com/>.
14291da177e4SLinus Torvalds	  Say Y if you intend to mount QNX hard disks or floppies.
14301da177e4SLinus Torvalds	  Unless you say Y to "QNX4FS read-write support" below, you will
14311da177e4SLinus Torvalds	  only be able to read these file systems.
14321da177e4SLinus Torvalds
14331da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
14341da177e4SLinus Torvalds	  module will be called qnx4.
14351da177e4SLinus Torvalds
14361da177e4SLinus Torvalds	  If you don't know whether you need it, then you don't need it:
14371da177e4SLinus Torvalds	  answer N.
14381da177e4SLinus Torvalds
14391da177e4SLinus Torvaldsconfig QNX4FS_RW
14401da177e4SLinus Torvalds	bool "QNX4FS write support (DANGEROUS)"
14411da177e4SLinus Torvalds	depends on QNX4FS_FS && EXPERIMENTAL && BROKEN
14421da177e4SLinus Torvalds	help
14431da177e4SLinus Torvalds	  Say Y if you want to test write support for QNX4 file systems.
14441da177e4SLinus Torvalds
14451da177e4SLinus Torvalds	  It's currently broken, so for now:
14461da177e4SLinus Torvalds	  answer N.
14471da177e4SLinus Torvalds
144825fad945SRandy Dunlapconfig ROMFS_FS
144925fad945SRandy Dunlap	tristate "ROM file system support"
145025fad945SRandy Dunlap	depends on BLOCK
145125fad945SRandy Dunlap	---help---
145225fad945SRandy Dunlap	  This is a very small read-only file system mainly intended for
145325fad945SRandy Dunlap	  initial ram disks of installation disks, but it could be used for
145425fad945SRandy Dunlap	  other read-only media as well.  Read
145525fad945SRandy Dunlap	  <file:Documentation/filesystems/romfs.txt> for details.
145625fad945SRandy Dunlap
145725fad945SRandy Dunlap	  To compile this file system support as a module, choose M here: the
145825fad945SRandy Dunlap	  module will be called romfs.  Note that the file system of your
145925fad945SRandy Dunlap	  root partition (the one containing the directory /) cannot be a
146025fad945SRandy Dunlap	  module.
146125fad945SRandy Dunlap
146225fad945SRandy Dunlap	  If you don't know whether you need it, then you don't need it:
146325fad945SRandy Dunlap	  answer N.
14641da177e4SLinus Torvalds
14651da177e4SLinus Torvalds
14661da177e4SLinus Torvaldsconfig SYSV_FS
14671da177e4SLinus Torvalds	tristate "System V/Xenix/V7/Coherent file system support"
14689361401eSDavid Howells	depends on BLOCK
14691da177e4SLinus Torvalds	help
14701da177e4SLinus Torvalds	  SCO, Xenix and Coherent are commercial Unix systems for Intel
14711da177e4SLinus Torvalds	  machines, and Version 7 was used on the DEC PDP-11. Saying Y
14721da177e4SLinus Torvalds	  here would allow you to read from their floppies and hard disk
14731da177e4SLinus Torvalds	  partitions.
14741da177e4SLinus Torvalds
14751da177e4SLinus Torvalds	  If you have floppies or hard disk partitions like that, it is likely
14761da177e4SLinus Torvalds	  that they contain binaries from those other Unix systems; in order
1477cab00891SMatt LaPlante	  to run these binaries, you will want to install linux-abi which is
14781da177e4SLinus Torvalds	  a set of kernel modules that lets you run SCO, Xenix, Wyse,
14791da177e4SLinus Torvalds	  UnixWare, Dell Unix and System V programs under Linux.  It is
14801da177e4SLinus Torvalds	  available via FTP (user: ftp) from
14811da177e4SLinus Torvalds	  <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
14821da177e4SLinus Torvalds	  NOTE: that will work only for binaries from Intel-based systems;
14831da177e4SLinus Torvalds	  PDP ones will have to wait until somebody ports Linux to -11 ;-)
14841da177e4SLinus Torvalds
14851da177e4SLinus Torvalds	  If you only intend to mount files from some other Unix over the
14861da177e4SLinus Torvalds	  network using NFS, you don't need the System V file system support
14871da177e4SLinus Torvalds	  (but you need NFS file system support obviously).
14881da177e4SLinus Torvalds
14891da177e4SLinus Torvalds	  Note that this option is generally not needed for floppies, since a
14901da177e4SLinus Torvalds	  good portable way to transport files and directories between unixes
14911da177e4SLinus Torvalds	  (and even other operating systems) is given by the tar program ("man
14921da177e4SLinus Torvalds	  tar" or preferably "info tar").  Note also that this option has
14931da177e4SLinus Torvalds	  nothing whatsoever to do with the option "System V IPC". Read about
14941da177e4SLinus Torvalds	  the System V file system in
14951da177e4SLinus Torvalds	  <file:Documentation/filesystems/sysv-fs.txt>.
14961da177e4SLinus Torvalds	  Saying Y here will enlarge your kernel by about 27 KB.
14971da177e4SLinus Torvalds
14981da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
14991da177e4SLinus Torvalds	  sysv.
15001da177e4SLinus Torvalds
15011da177e4SLinus Torvalds	  If you haven't heard about all of this before, it's safe to say N.
15021da177e4SLinus Torvalds
15031da177e4SLinus Torvalds
15041da177e4SLinus Torvaldsconfig UFS_FS
15051da177e4SLinus Torvalds	tristate "UFS file system support (read only)"
15069361401eSDavid Howells	depends on BLOCK
15071da177e4SLinus Torvalds	help
15081da177e4SLinus Torvalds	  BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
15091da177e4SLinus Torvalds	  OpenBSD and NeXTstep) use a file system called UFS. Some System V
15101da177e4SLinus Torvalds	  Unixes can create and mount hard disk partitions and diskettes using
15111da177e4SLinus Torvalds	  this file system as well. Saying Y here will allow you to read from
15121da177e4SLinus Torvalds	  these partitions; if you also want to write to them, say Y to the
15131da177e4SLinus Torvalds	  experimental "UFS file system write support", below. Please read the
15141da177e4SLinus Torvalds	  file <file:Documentation/filesystems/ufs.txt> for more information.
15151da177e4SLinus Torvalds
15161da177e4SLinus Torvalds          The recently released UFS2 variant (used in FreeBSD 5.x) is
15171da177e4SLinus Torvalds          READ-ONLY supported.
15181da177e4SLinus Torvalds
15191da177e4SLinus Torvalds	  If you only intend to mount files from some other Unix over the
15201da177e4SLinus Torvalds	  network using NFS, you don't need the UFS file system support (but
15211da177e4SLinus Torvalds	  you need NFS file system support obviously).
15221da177e4SLinus Torvalds
15231da177e4SLinus Torvalds	  Note that this option is generally not needed for floppies, since a
15241da177e4SLinus Torvalds	  good portable way to transport files and directories between unixes
15251da177e4SLinus Torvalds	  (and even other operating systems) is given by the tar program ("man
15261da177e4SLinus Torvalds	  tar" or preferably "info tar").
15271da177e4SLinus Torvalds
15281da177e4SLinus Torvalds	  When accessing NeXTstep files, you may need to convert them from the
15291da177e4SLinus Torvalds	  NeXT character set to the Latin1 character set; use the program
15301da177e4SLinus Torvalds	  recode ("info recode") for this purpose.
15311da177e4SLinus Torvalds
15321da177e4SLinus Torvalds	  To compile the UFS file system support as a module, choose M here: the
15331da177e4SLinus Torvalds	  module will be called ufs.
15341da177e4SLinus Torvalds
15351da177e4SLinus Torvalds	  If you haven't heard about all of this before, it's safe to say N.
15361da177e4SLinus Torvalds
15371da177e4SLinus Torvaldsconfig UFS_FS_WRITE
15381da177e4SLinus Torvalds	bool "UFS file system write support (DANGEROUS)"
15395afb3145SEvgeniy Dushistov	depends on UFS_FS && EXPERIMENTAL
15401da177e4SLinus Torvalds	help
15411da177e4SLinus Torvalds	  Say Y here if you want to try writing to UFS partitions. This is
15421da177e4SLinus Torvalds	  experimental, so you should back up your UFS partitions beforehand.
15431da177e4SLinus Torvalds
1544abf5d15fSEvgeniy Dushistovconfig UFS_DEBUG
1545abf5d15fSEvgeniy Dushistov	bool "UFS debugging"
1546abf5d15fSEvgeniy Dushistov	depends on UFS_FS
1547abf5d15fSEvgeniy Dushistov	help
1548abf5d15fSEvgeniy Dushistov	  If you are experiencing any problems with the UFS filesystem, say
1549abf5d15fSEvgeniy Dushistov	  Y here.  This will result in _many_ additional debugging messages to be
1550abf5d15fSEvgeniy Dushistov	  written to the system log.
1551abf5d15fSEvgeniy Dushistov
15521da177e4SLinus Torvaldsendmenu
15531da177e4SLinus Torvalds
1554ea0985adSJan Engelhardtmenuconfig NETWORK_FILESYSTEMS
1555ea0985adSJan Engelhardt	bool "Network File Systems"
1556ea0985adSJan Engelhardt	default y
15571da177e4SLinus Torvalds	depends on NET
1558ea0985adSJan Engelhardt	---help---
1559ea0985adSJan Engelhardt	  Say Y here to get to see options for network filesystems and
1560ea0985adSJan Engelhardt	  filesystem-related networking code, such as NFS daemon and
1561ea0985adSJan Engelhardt	  RPCSEC security modules.
1562ea0985adSJan Engelhardt	  This option alone does not add any kernel code.
1563ea0985adSJan Engelhardt
1564ea0985adSJan Engelhardt	  If you say N, all options in this submenu will be skipped and
1565ea0985adSJan Engelhardt	  disabled; if unsure, say Y here.
1566ea0985adSJan Engelhardt
1567ea0985adSJan Engelhardtif NETWORK_FILESYSTEMS
15681da177e4SLinus Torvalds
15691da177e4SLinus Torvaldsconfig NFS_FS
15701da177e4SLinus Torvalds	tristate "NFS file system support"
15711da177e4SLinus Torvalds	depends on INET
15721da177e4SLinus Torvalds	select LOCKD
15731da177e4SLinus Torvalds	select SUNRPC
1574b7fa0554SAndreas Gruenbacher	select NFS_ACL_SUPPORT if NFS_V3_ACL
15751da177e4SLinus Torvalds	help
15761da177e4SLinus Torvalds	  If you are connected to some other (usually local) Unix computer
15771da177e4SLinus Torvalds	  (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
15781da177e4SLinus Torvalds	  on that computer (the NFS server) using the Network File Sharing
15791da177e4SLinus Torvalds	  protocol, say Y. "Mounting files" means that the client can access
15801da177e4SLinus Torvalds	  the files with usual UNIX commands as if they were sitting on the
15811da177e4SLinus Torvalds	  client's hard disk. For this to work, the server must run the
15821da177e4SLinus Torvalds	  programs nfsd and mountd (but does not need to have NFS file system
15831da177e4SLinus Torvalds	  support enabled in its kernel). NFS is explained in the Network
15841da177e4SLinus Torvalds	  Administrator's Guide, available from
15851da177e4SLinus Torvalds	  <http://www.tldp.org/docs.html#guide>, on its man page: "man
15861da177e4SLinus Torvalds	  nfs", and in the NFS-HOWTO.
15871da177e4SLinus Torvalds
15881da177e4SLinus Torvalds	  A superior but less widely used alternative to NFS is provided by
15891da177e4SLinus Torvalds	  the Coda file system; see "Coda file system support" below.
15901da177e4SLinus Torvalds
15911da177e4SLinus Torvalds	  If you say Y here, you should have said Y to TCP/IP networking also.
15921da177e4SLinus Torvalds	  This option would enlarge your kernel by about 27 KB.
15931da177e4SLinus Torvalds
15941da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
15951da177e4SLinus Torvalds	  module will be called nfs.
15961da177e4SLinus Torvalds
15971da177e4SLinus Torvalds	  If you are configuring a diskless machine which will mount its root
15981da177e4SLinus Torvalds	  file system over NFS at boot time, say Y here and to "Kernel
15991da177e4SLinus Torvalds	  level IP autoconfiguration" above and to "Root file system on NFS"
16001da177e4SLinus Torvalds	  below. You cannot compile this driver as a module in this case.
16011da177e4SLinus Torvalds	  There are two packages designed for booting diskless machines over
16021da177e4SLinus Torvalds	  the net: netboot, available from
16031da177e4SLinus Torvalds	  <http://ftp1.sourceforge.net/netboot/>, and Etherboot,
16041da177e4SLinus Torvalds	  available from <http://ftp1.sourceforge.net/etherboot/>.
16051da177e4SLinus Torvalds
16061da177e4SLinus Torvalds	  If you don't know what all this is about, say N.
16071da177e4SLinus Torvalds
16081da177e4SLinus Torvaldsconfig NFS_V3
16091da177e4SLinus Torvalds	bool "Provide NFSv3 client support"
16101da177e4SLinus Torvalds	depends on NFS_FS
16111da177e4SLinus Torvalds	help
16121da177e4SLinus Torvalds	  Say Y here if you want your NFS client to be able to speak version
16131da177e4SLinus Torvalds	  3 of the NFS protocol.
16141da177e4SLinus Torvalds
16151da177e4SLinus Torvalds	  If unsure, say Y.
16161da177e4SLinus Torvalds
1617b7fa0554SAndreas Gruenbacherconfig NFS_V3_ACL
1618b7fa0554SAndreas Gruenbacher	bool "Provide client support for the NFSv3 ACL protocol extension"
1619b7fa0554SAndreas Gruenbacher	depends on NFS_V3
1620b7fa0554SAndreas Gruenbacher	help
1621b7fa0554SAndreas Gruenbacher	  Implement the NFSv3 ACL protocol extension for manipulating POSIX
1622b7fa0554SAndreas Gruenbacher	  Access Control Lists.  The server should also be compiled with
1623b7fa0554SAndreas Gruenbacher	  the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option.
1624b7fa0554SAndreas Gruenbacher
1625b7fa0554SAndreas Gruenbacher	  If unsure, say N.
1626b7fa0554SAndreas Gruenbacher
16271da177e4SLinus Torvaldsconfig NFS_V4
16281da177e4SLinus Torvalds	bool "Provide NFSv4 client support (EXPERIMENTAL)"
16291da177e4SLinus Torvalds	depends on NFS_FS && EXPERIMENTAL
16301da177e4SLinus Torvalds	select RPCSEC_GSS_KRB5
16311da177e4SLinus Torvalds	help
16321da177e4SLinus Torvalds	  Say Y here if you want your NFS client to be able to speak the newer
16331da177e4SLinus Torvalds	  version 4 of the NFS protocol.
16341da177e4SLinus Torvalds
16351da177e4SLinus Torvalds	  Note: Requires auxiliary userspace daemons which may be found on
16361da177e4SLinus Torvalds		http://www.citi.umich.edu/projects/nfsv4/
16371da177e4SLinus Torvalds
16381da177e4SLinus Torvalds	  If unsure, say N.
16391da177e4SLinus Torvalds
16401da177e4SLinus Torvaldsconfig NFSD
16411da177e4SLinus Torvalds	tristate "NFS server support"
16421da177e4SLinus Torvalds	depends on INET
16431da177e4SLinus Torvalds	select LOCKD
16441da177e4SLinus Torvalds	select SUNRPC
16451da177e4SLinus Torvalds	select EXPORTFS
1646f05e15b5SHerbert Xu	select NFSD_V2_ACL if NFSD_V3_ACL
1647f05e15b5SHerbert Xu	select NFS_ACL_SUPPORT if NFSD_V2_ACL
1648f05e15b5SHerbert Xu	select NFSD_TCP if NFSD_V4
1649f05e15b5SHerbert Xu	select CRYPTO_MD5 if NFSD_V4
1650f05e15b5SHerbert Xu	select CRYPTO if NFSD_V4
1651f05e15b5SHerbert Xu	select FS_POSIX_ACL if NFSD_V4
1652440bcc59SJ. Bruce Fields	select PROC_FS if NFSD_V4
1653440bcc59SJ. Bruce Fields	select PROC_FS if SUNRPC_GSS
16541da177e4SLinus Torvalds	help
16551da177e4SLinus Torvalds	  If you want your Linux box to act as an NFS *server*, so that other
16561da177e4SLinus Torvalds	  computers on your local network which support NFS can access certain
16571da177e4SLinus Torvalds	  directories on your box transparently, you have two options: you can
16581da177e4SLinus Torvalds	  use the self-contained user space program nfsd, in which case you
16591da177e4SLinus Torvalds	  should say N here, or you can say Y and use the kernel based NFS
16601da177e4SLinus Torvalds	  server. The advantage of the kernel based solution is that it is
16611da177e4SLinus Torvalds	  faster.
16621da177e4SLinus Torvalds
16631da177e4SLinus Torvalds	  In either case, you will need support software; the respective
16641da177e4SLinus Torvalds	  locations are given in the file <file:Documentation/Changes> in the
16651da177e4SLinus Torvalds	  NFS section.
16661da177e4SLinus Torvalds
16671da177e4SLinus Torvalds	  If you say Y here, you will get support for version 2 of the NFS
16681da177e4SLinus Torvalds	  protocol (NFSv2). If you also want NFSv3, say Y to the next question
16691da177e4SLinus Torvalds	  as well.
16701da177e4SLinus Torvalds
16711da177e4SLinus Torvalds	  Please read the NFS-HOWTO, available from
16721da177e4SLinus Torvalds	  <http://www.tldp.org/docs.html#howto>.
16731da177e4SLinus Torvalds
16741da177e4SLinus Torvalds	  To compile the NFS server support as a module, choose M here: the
16751da177e4SLinus Torvalds	  module will be called nfsd.  If unsure, say N.
16761da177e4SLinus Torvalds
1677a257cdd0SAndreas Gruenbacherconfig NFSD_V2_ACL
1678a257cdd0SAndreas Gruenbacher	bool
1679a257cdd0SAndreas Gruenbacher	depends on NFSD
1680a257cdd0SAndreas Gruenbacher
16811da177e4SLinus Torvaldsconfig NFSD_V3
16821da177e4SLinus Torvalds	bool "Provide NFSv3 server support"
16831da177e4SLinus Torvalds	depends on NFSD
16841da177e4SLinus Torvalds	help
16851da177e4SLinus Torvalds	  If you would like to include the NFSv3 server as well as the NFSv2
16861da177e4SLinus Torvalds	  server, say Y here.  If unsure, say Y.
16871da177e4SLinus Torvalds
1688a257cdd0SAndreas Gruenbacherconfig NFSD_V3_ACL
1689a257cdd0SAndreas Gruenbacher	bool "Provide server support for the NFSv3 ACL protocol extension"
1690a257cdd0SAndreas Gruenbacher	depends on NFSD_V3
1691a257cdd0SAndreas Gruenbacher	help
1692a257cdd0SAndreas Gruenbacher	  Implement the NFSv3 ACL protocol extension for manipulating POSIX
1693a257cdd0SAndreas Gruenbacher	  Access Control Lists on exported file systems. NFS clients should
1694a257cdd0SAndreas Gruenbacher	  be compiled with the NFSv3 ACL protocol extension; see the
1695a257cdd0SAndreas Gruenbacher	  CONFIG_NFS_V3_ACL option.  If unsure, say N.
1696a257cdd0SAndreas Gruenbacher
16971da177e4SLinus Torvaldsconfig NFSD_V4
16981da177e4SLinus Torvalds	bool "Provide NFSv4 server support (EXPERIMENTAL)"
16998cd69e1bSTrond Myklebust	depends on NFSD && NFSD_V3 && EXPERIMENTAL
170042ed95c4SJ. Bruce Fields	select RPCSEC_GSS_KRB5
17011da177e4SLinus Torvalds	help
17021da177e4SLinus Torvalds	  If you would like to include the NFSv4 server as well as the NFSv2
17031da177e4SLinus Torvalds	  and NFSv3 servers, say Y here.  This feature is experimental, and
17041da177e4SLinus Torvalds	  should only be used if you are interested in helping to test NFSv4.
17051da177e4SLinus Torvalds	  If unsure, say N.
17061da177e4SLinus Torvalds
17071da177e4SLinus Torvaldsconfig NFSD_TCP
17081da177e4SLinus Torvalds	bool "Provide NFS server over TCP support"
17091da177e4SLinus Torvalds	depends on NFSD
17101da177e4SLinus Torvalds	default y
17111da177e4SLinus Torvalds	help
17121da177e4SLinus Torvalds	  If you want your NFS server to support TCP connections, say Y here.
17131da177e4SLinus Torvalds	  TCP connections usually perform better than the default UDP when
17141da177e4SLinus Torvalds	  the network is lossy or congested.  If unsure, say Y.
17151da177e4SLinus Torvalds
17161da177e4SLinus Torvaldsconfig ROOT_NFS
17171da177e4SLinus Torvalds	bool "Root file system on NFS"
17181da177e4SLinus Torvalds	depends on NFS_FS=y && IP_PNP
17191da177e4SLinus Torvalds	help
17201da177e4SLinus Torvalds	  If you want your Linux box to mount its whole root file system (the
17211da177e4SLinus Torvalds	  one containing the directory /) from some other computer over the
17221da177e4SLinus Torvalds	  net via NFS (presumably because your box doesn't have a hard disk),
17231da177e4SLinus Torvalds	  say Y. Read <file:Documentation/nfsroot.txt> for details. It is
17241da177e4SLinus Torvalds	  likely that in this case, you also want to say Y to "Kernel level IP
17251da177e4SLinus Torvalds	  autoconfiguration" so that your box can discover its network address
17261da177e4SLinus Torvalds	  at boot time.
17271da177e4SLinus Torvalds
17281da177e4SLinus Torvalds	  Most people say N here.
17291da177e4SLinus Torvalds
17301da177e4SLinus Torvaldsconfig LOCKD
17311da177e4SLinus Torvalds	tristate
17321da177e4SLinus Torvalds
17331da177e4SLinus Torvaldsconfig LOCKD_V4
17341da177e4SLinus Torvalds	bool
17351da177e4SLinus Torvalds	depends on NFSD_V3 || NFS_V3
17361da177e4SLinus Torvalds	default y
17371da177e4SLinus Torvalds
17381da177e4SLinus Torvaldsconfig EXPORTFS
17391da177e4SLinus Torvalds	tristate
17401da177e4SLinus Torvalds
1741a257cdd0SAndreas Gruenbacherconfig NFS_ACL_SUPPORT
1742a257cdd0SAndreas Gruenbacher	tristate
1743a257cdd0SAndreas Gruenbacher	select FS_POSIX_ACL
1744a257cdd0SAndreas Gruenbacher
1745a257cdd0SAndreas Gruenbacherconfig NFS_COMMON
1746a257cdd0SAndreas Gruenbacher	bool
1747a257cdd0SAndreas Gruenbacher	depends on NFSD || NFS_FS
1748a257cdd0SAndreas Gruenbacher	default y
1749a257cdd0SAndreas Gruenbacher
17501da177e4SLinus Torvaldsconfig SUNRPC
17511da177e4SLinus Torvalds	tristate
17521da177e4SLinus Torvalds
17531da177e4SLinus Torvaldsconfig SUNRPC_GSS
17541da177e4SLinus Torvalds	tristate
17551da177e4SLinus Torvalds
1756c3a57ed7S\"Talpey, Thomas\config SUNRPC_XPRT_RDMA
17573211e4ebSJames Lentini	tristate
1758113632d0S\"Talpey, Thomas\	depends on SUNRPC && INFINIBAND && EXPERIMENTAL
17593211e4ebSJames Lentini	default SUNRPC && INFINIBAND
1760327a299dSChuck Lever	help
1761327a299dSChuck Lever	  This option enables an RPC client transport capability that
1762327a299dSChuck Lever	  allows the NFS client to mount servers via an RDMA-enabled
1763327a299dSChuck Lever	  transport.
1764327a299dSChuck Lever
1765327a299dSChuck Lever	  To compile RPC client RDMA transport support as a module,
1766327a299dSChuck Lever	  choose M here: the module will be called xprtrdma.
1767327a299dSChuck Lever
1768327a299dSChuck Lever	  If unsure, say N.
1769c3a57ed7S\"Talpey, Thomas\
177000a6e7bbSChuck Leverconfig SUNRPC_BIND34
177100a6e7bbSChuck Lever	bool "Support for rpcbind versions 3 & 4 (EXPERIMENTAL)"
177200a6e7bbSChuck Lever	depends on SUNRPC && EXPERIMENTAL
1773*1e40316bSChuck Lever	default n
177400a6e7bbSChuck Lever	help
1775327a299dSChuck Lever	  RPC requests over IPv6 networks require support for larger
1776327a299dSChuck Lever	  addresses when performing an RPC bind.  Sun added support for
1777327a299dSChuck Lever	  IPv6 addressing by creating two new versions of the rpcbind
1778327a299dSChuck Lever	  protocol (RFC 1833).
1779327a299dSChuck Lever
1780327a299dSChuck Lever	  This option enables support in the kernel RPC client for
1781327a299dSChuck Lever	  querying rpcbind servers via versions 3 and 4 of the rpcbind
1782327a299dSChuck Lever	  protocol.  The kernel automatically falls back to version 2
1783327a299dSChuck Lever	  if a remote rpcbind service does not support versions 3 or 4.
1784327a299dSChuck Lever	  By themselves, these new versions do not provide support for
1785327a299dSChuck Lever	  RPC over IPv6, but the new protocol versions are necessary to
1786327a299dSChuck Lever	  support it.
178700a6e7bbSChuck Lever
178800a6e7bbSChuck Lever	  If unsure, say N to get traditional behavior (version 2 rpcbind
178900a6e7bbSChuck Lever	  requests only).
179000a6e7bbSChuck Lever
17911da177e4SLinus Torvaldsconfig RPCSEC_GSS_KRB5
17921da177e4SLinus Torvalds	tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
17931da177e4SLinus Torvalds	depends on SUNRPC && EXPERIMENTAL
17941da177e4SLinus Torvalds	select SUNRPC_GSS
17951da177e4SLinus Torvalds	select CRYPTO
17961da177e4SLinus Torvalds	select CRYPTO_MD5
17971da177e4SLinus Torvalds	select CRYPTO_DES
1798bcbaecbbSPatrick McHardy	select CRYPTO_CBC
17991da177e4SLinus Torvalds	help
1800327a299dSChuck Lever	  Choose Y here to enable Secure RPC using the Kerberos version 5
1801327a299dSChuck Lever	  GSS-API mechanism (RFC 1964).
18021da177e4SLinus Torvalds
1803327a299dSChuck Lever	  Secure RPC calls with Kerberos require an auxiliary user-space
1804327a299dSChuck Lever	  daemon which may be found in the Linux nfs-utils package
1805327a299dSChuck Lever	  available from http://linux-nfs.org/.  In addition, user-space
1806327a299dSChuck Lever	  Kerberos support should be installed.
18071da177e4SLinus Torvalds
18081da177e4SLinus Torvalds	  If unsure, say N.
18091da177e4SLinus Torvalds
18101da177e4SLinus Torvaldsconfig RPCSEC_GSS_SPKM3
18111da177e4SLinus Torvalds	tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
18121da177e4SLinus Torvalds	depends on SUNRPC && EXPERIMENTAL
18131da177e4SLinus Torvalds	select SUNRPC_GSS
18141da177e4SLinus Torvalds	select CRYPTO
18151da177e4SLinus Torvalds	select CRYPTO_MD5
18161da177e4SLinus Torvalds	select CRYPTO_DES
1817df6db302SJ. Bruce Fields	select CRYPTO_CAST5
1818bcbaecbbSPatrick McHardy	select CRYPTO_CBC
18191da177e4SLinus Torvalds	help
1820327a299dSChuck Lever	  Choose Y here to enable Secure RPC using the SPKM3 public key
1821327a299dSChuck Lever	  GSS-API mechansim (RFC 2025).
18221da177e4SLinus Torvalds
1823327a299dSChuck Lever	  Secure RPC calls with SPKM3 require an auxiliary userspace
1824327a299dSChuck Lever	  daemon which may be found in the Linux nfs-utils package
1825327a299dSChuck Lever	  available from http://linux-nfs.org/.
18261da177e4SLinus Torvalds
18271da177e4SLinus Torvalds	  If unsure, say N.
18281da177e4SLinus Torvalds
18291da177e4SLinus Torvaldsconfig SMB_FS
1830c7736339SAndrew Morton	tristate "SMB file system support (OBSOLETE, please use CIFS)"
18311da177e4SLinus Torvalds	depends on INET
18321da177e4SLinus Torvalds	select NLS
18331da177e4SLinus Torvalds	help
18341da177e4SLinus Torvalds	  SMB (Server Message Block) is the protocol Windows for Workgroups
18351da177e4SLinus Torvalds	  (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
18361da177e4SLinus Torvalds	  files and printers over local networks.  Saying Y here allows you to
18371da177e4SLinus Torvalds	  mount their file systems (often called "shares" in this context) and
18381da177e4SLinus Torvalds	  access them just like any other Unix directory.  Currently, this
18391da177e4SLinus Torvalds	  works only if the Windows machines use TCP/IP as the underlying
18401da177e4SLinus Torvalds	  transport protocol, and not NetBEUI.  For details, read
18411da177e4SLinus Torvalds	  <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
18421da177e4SLinus Torvalds	  available from <http://www.tldp.org/docs.html#howto>.
18431da177e4SLinus Torvalds
18441da177e4SLinus Torvalds	  Note: if you just want your box to act as an SMB *server* and make
18451da177e4SLinus Torvalds	  files and printing services available to Windows clients (which need
18461da177e4SLinus Torvalds	  to have a TCP/IP stack), you don't need to say Y here; you can use
18471da177e4SLinus Torvalds	  the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
18481da177e4SLinus Torvalds	  for that.
18491da177e4SLinus Torvalds
18501da177e4SLinus Torvalds	  General information about how to connect Linux, Windows machines and
18511da177e4SLinus Torvalds	  Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
18521da177e4SLinus Torvalds
1853c7736339SAndrew Morton	  To compile the SMB support as a module, choose M here:
1854c7736339SAndrew Morton	  the module will be called smbfs.  Most people say N, however.
18551da177e4SLinus Torvalds
18561da177e4SLinus Torvaldsconfig SMB_NLS_DEFAULT
18571da177e4SLinus Torvalds	bool "Use a default NLS"
18581da177e4SLinus Torvalds	depends on SMB_FS
18591da177e4SLinus Torvalds	help
18601da177e4SLinus Torvalds	  Enabling this will make smbfs use nls translations by default. You
18611da177e4SLinus Torvalds	  need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
18621da177e4SLinus Torvalds	  settings and you need to give the default nls for the SMB server as
18631da177e4SLinus Torvalds	  CONFIG_SMB_NLS_REMOTE.
18641da177e4SLinus Torvalds
18651da177e4SLinus Torvalds	  The nls settings can be changed at mount time, if your smbmount
18661da177e4SLinus Torvalds	  supports that, using the codepage and iocharset parameters.
18671da177e4SLinus Torvalds
18681da177e4SLinus Torvalds	  smbmount from samba 2.2.0 or later supports this.
18691da177e4SLinus Torvalds
18701da177e4SLinus Torvaldsconfig SMB_NLS_REMOTE
18711da177e4SLinus Torvalds	string "Default Remote NLS Option"
18721da177e4SLinus Torvalds	depends on SMB_NLS_DEFAULT
18731da177e4SLinus Torvalds	default "cp437"
18741da177e4SLinus Torvalds	help
18751da177e4SLinus Torvalds	  This setting allows you to specify a default value for which
18761da177e4SLinus Torvalds	  codepage the server uses. If this field is left blank no
18771da177e4SLinus Torvalds	  translations will be done by default. The local codepage/charset
18781da177e4SLinus Torvalds	  default to CONFIG_NLS_DEFAULT.
18791da177e4SLinus Torvalds
18801da177e4SLinus Torvalds	  The nls settings can be changed at mount time, if your smbmount
18811da177e4SLinus Torvalds	  supports that, using the codepage and iocharset parameters.
18821da177e4SLinus Torvalds
18831da177e4SLinus Torvalds	  smbmount from samba 2.2.0 or later supports this.
18841da177e4SLinus Torvalds
18851da177e4SLinus Torvaldsconfig CIFS
1886c7736339SAndrew Morton	tristate "CIFS support (advanced network filesystem, SMBFS successor)"
18871da177e4SLinus Torvalds	depends on INET
18881da177e4SLinus Torvalds	select NLS
18891da177e4SLinus Torvalds	help
18901da177e4SLinus Torvalds	  This is the client VFS module for the Common Internet File System
18911da177e4SLinus Torvalds	  (CIFS) protocol which is the successor to the Server Message Block
18921da177e4SLinus Torvalds	  (SMB) protocol, the native file sharing mechanism for most early
18931da177e4SLinus Torvalds	  PC operating systems.  The CIFS protocol is fully supported by
18941da177e4SLinus Torvalds	  file servers such as Windows 2000 (including Windows 2003, NT 4
18951da177e4SLinus Torvalds	  and Windows XP) as well by Samba (which provides excellent CIFS
1896ec58ef03SSteve French	  server support for Linux and many other operating systems). Limited
18976103335dSSteve French	  support for OS/2 and Windows ME and similar servers is provided as
18986103335dSSteve French	  well.
18991da177e4SLinus Torvalds
19006103335dSSteve French	  The cifs module provides an advanced network file system
19016103335dSSteve French	  client for mounting to CIFS compliant servers.  It includes
19026103335dSSteve French	  support for DFS (hierarchical name space), secure per-user
19036103335dSSteve French	  session establishment via Kerberos or NTLM or NTLMv2,
19046103335dSSteve French	  safe distributed caching (oplock), optional packet
19056103335dSSteve French	  signing, Unicode and other internationalization improvements.
19068af18971SSteve French	  If you need to mount to Samba or Windows from this machine, say Y.
19071da177e4SLinus Torvalds
19081da177e4SLinus Torvaldsconfig CIFS_STATS
19091da177e4SLinus Torvalds        bool "CIFS statistics"
19101da177e4SLinus Torvalds        depends on CIFS
19111da177e4SLinus Torvalds        help
19121da177e4SLinus Torvalds          Enabling this option will cause statistics for each server share
19131da177e4SLinus Torvalds	  mounted by the cifs client to be displayed in /proc/fs/cifs/Stats
19141da177e4SLinus Torvalds
1915ec58ef03SSteve Frenchconfig CIFS_STATS2
19163979877eSSteve French	bool "Extended statistics"
1917ec58ef03SSteve French	depends on CIFS_STATS
1918ec58ef03SSteve French	help
1919ec58ef03SSteve French	  Enabling this option will allow more detailed statistics on SMB
1920ec58ef03SSteve French	  request timing to be displayed in /proc/fs/cifs/DebugData and also
1921ec58ef03SSteve French	  allow optional logging of slow responses to dmesg (depending on the
1922ec58ef03SSteve French	  value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details).
1923ec58ef03SSteve French	  These additional statistics may have a minor effect on performance
1924ec58ef03SSteve French	  and memory utilization.
1925ec58ef03SSteve French
1926ec58ef03SSteve French	  Unless you are a developer or are doing network performance analysis
1927ec58ef03SSteve French	  or tuning, say N.
1928ec58ef03SSteve French
19293979877eSSteve Frenchconfig CIFS_WEAK_PW_HASH
19303979877eSSteve French	bool "Support legacy servers which use weaker LANMAN security"
19313979877eSSteve French	depends on CIFS
19323979877eSSteve French	help
19333979877eSSteve French	  Modern CIFS servers including Samba and most Windows versions
19343979877eSSteve French	  (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos)
19353979877eSSteve French	  security mechanisms. These hash the password more securely
19363979877eSSteve French	  than the mechanisms used in the older LANMAN version of the
19376103335dSSteve French	  SMB protocol but LANMAN based authentication is needed to
19386103335dSSteve French	  establish sessions with some old SMB servers.
19393979877eSSteve French
19403979877eSSteve French	  Enabling this option allows the cifs module to mount to older
19413979877eSSteve French	  LANMAN based servers such as OS/2 and Windows 95, but such
19423979877eSSteve French	  mounts may be less secure than mounts using NTLM or more recent
19433979877eSSteve French	  security mechanisms if you are on a public network.  Unless you
19443979877eSSteve French	  have a need to access old SMB servers (and are on a private
19453979877eSSteve French	  network) you probably want to say N.  Even if this support
19466103335dSSteve French	  is enabled in the kernel build, LANMAN authentication will not be
19476103335dSSteve French	  used automatically. At runtime LANMAN mounts are disabled but
19483979877eSSteve French	  can be set to required (or optional) either in
19493979877eSSteve French	  /proc/fs/cifs (see fs/cifs/README for more detail) or via an
19503979877eSSteve French	  option on the mount command. This support is disabled by
19513979877eSSteve French	  default in order to reduce the possibility of a downgrade
19523979877eSSteve French	  attack.
19533979877eSSteve French
19543979877eSSteve French	  If unsure, say N.
19553979877eSSteve French
19561da177e4SLinus Torvaldsconfig CIFS_XATTR
1957ec58ef03SSteve French        bool "CIFS extended attributes"
19581da177e4SLinus Torvalds        depends on CIFS
19591da177e4SLinus Torvalds        help
19601da177e4SLinus Torvalds          Extended attributes are name:value pairs associated with inodes by
19611da177e4SLinus Torvalds          the kernel or by users (see the attr(5) manual page, or visit
19621da177e4SLinus Torvalds          <http://acl.bestbits.at/> for details).  CIFS maps the name of
19631da177e4SLinus Torvalds          extended attributes beginning with the user namespace prefix
19641da177e4SLinus Torvalds          to SMB/CIFS EAs. EAs are stored on Windows servers without the
19651da177e4SLinus Torvalds          user namespace prefix, but their names are seen by Linux cifs clients
19661da177e4SLinus Torvalds          prefaced by the user namespace prefix. The system namespace
19671da177e4SLinus Torvalds          (used by some filesystems to store ACLs) is not supported at
19681da177e4SLinus Torvalds          this time.
19691da177e4SLinus Torvalds
19701da177e4SLinus Torvalds          If unsure, say N.
19711da177e4SLinus Torvalds
19721da177e4SLinus Torvaldsconfig CIFS_POSIX
1973ec58ef03SSteve French        bool "CIFS POSIX Extensions"
19741da177e4SLinus Torvalds        depends on CIFS_XATTR
19751da177e4SLinus Torvalds        help
19761da177e4SLinus Torvalds          Enabling this option will cause the cifs client to attempt to
19771da177e4SLinus Torvalds	  negotiate a newer dialect with servers, such as Samba 3.0.5
19781da177e4SLinus Torvalds	  or later, that optionally can handle more POSIX like (rather
19791da177e4SLinus Torvalds	  than Windows like) file behavior.  It also enables
19801da177e4SLinus Torvalds	  support for POSIX ACLs (getfacl and setfacl) to servers
19811da177e4SLinus Torvalds	  (such as Samba 3.10 and later) which can negotiate
19821da177e4SLinus Torvalds	  CIFS POSIX ACL support.  If unsure, say N.
19831da177e4SLinus Torvalds
19843979877eSSteve Frenchconfig CIFS_DEBUG2
19853856a9d4SSteve French	bool "Enable additional CIFS debugging routines"
19868ba10ab1SSteve French	depends on CIFS
19873979877eSSteve French	help
19883979877eSSteve French	   Enabling this option adds a few more debugging routines
19893979877eSSteve French	   to the cifs code which slightly increases the size of
19903979877eSSteve French	   the cifs module and can cause additional logging of debug
19913979877eSSteve French	   messages in some error paths, slowing performance. This
19923979877eSSteve French	   option can be turned off unless you are debugging
19933979877eSSteve French	   cifs problems.  If unsure, say N.
19943979877eSSteve French
19951da177e4SLinus Torvaldsconfig CIFS_EXPERIMENTAL
19961da177e4SLinus Torvalds	  bool "CIFS Experimental Features (EXPERIMENTAL)"
1997cb9dbff9SSteve French	  depends on CIFS && EXPERIMENTAL
19981da177e4SLinus Torvalds	  help
1999ec58ef03SSteve French	    Enables cifs features under testing. These features are
20008af18971SSteve French	    experimental and currently include DFS support and directory
20018af18971SSteve French	    change notification ie fcntl(F_DNOTIFY), as well as the upcall
20028af18971SSteve French	    mechanism which will be used for Kerberos session negotiation
20038af18971SSteve French	    and uid remapping.  Some of these features also may depend on
20048af18971SSteve French	    setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental
20058af18971SSteve French	    (which is disabled by default). See the file fs/cifs/README
20068af18971SSteve French	    for more details.  If unsure, say N.
20071da177e4SLinus Torvalds
2008a2653ebaSSteve Frenchconfig CIFS_UPCALL
20093979877eSSteve French	  bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
2010a2653ebaSSteve French	  depends on CIFS_EXPERIMENTAL
201109fe7ba7SJeff Layton	  depends on KEYS
2012a2653ebaSSteve French	  help
20136103335dSSteve French	    Enables an upcall mechanism for CIFS which accesses
20146103335dSSteve French	    userspace helper utilities to provide SPNEGO packaged (RFC 4178)
20156103335dSSteve French	    Kerberos tickets which are needed to mount to certain secure servers
20161b397f4fSSteve French	    (for which more secure Kerberos authentication is required). If
20171b397f4fSSteve French	    unsure, say N.
2018a2653ebaSSteve French
20196103335dSSteve Frenchconfig CIFS_DFS_UPCALL
20206103335dSSteve French	  bool "DFS feature support (EXPERIMENTAL)"
20216103335dSSteve French	  depends on CIFS_EXPERIMENTAL
20226103335dSSteve French	  depends on KEYS
20236103335dSSteve French	  help
20246103335dSSteve French	    Enables an upcall mechanism for CIFS which contacts userspace
20256103335dSSteve French	    helper utilities to provide server name resolution (host names to
20266103335dSSteve French	    IP addresses) which is needed for implicit mounts of DFS junction
20276103335dSSteve French	    points. If unsure, say N.
20286103335dSSteve French
20291da177e4SLinus Torvaldsconfig NCP_FS
20301da177e4SLinus Torvalds	tristate "NCP file system support (to mount NetWare volumes)"
20311da177e4SLinus Torvalds	depends on IPX!=n || INET
20321da177e4SLinus Torvalds	help
20331da177e4SLinus Torvalds	  NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
20341da177e4SLinus Torvalds	  used by Novell NetWare clients to talk to file servers.  It is to
20351da177e4SLinus Torvalds	  IPX what NFS is to TCP/IP, if that helps.  Saying Y here allows you
20361da177e4SLinus Torvalds	  to mount NetWare file server volumes and to access them just like
20371da177e4SLinus Torvalds	  any other Unix directory.  For details, please read the file
20381da177e4SLinus Torvalds	  <file:Documentation/filesystems/ncpfs.txt> in the kernel source and
20391da177e4SLinus Torvalds	  the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
20401da177e4SLinus Torvalds
20411da177e4SLinus Torvalds	  You do not have to say Y here if you want your Linux box to act as a
20421da177e4SLinus Torvalds	  file *server* for Novell NetWare clients.
20431da177e4SLinus Torvalds
20441da177e4SLinus Torvalds	  General information about how to connect Linux, Windows machines and
20451da177e4SLinus Torvalds	  Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
20461da177e4SLinus Torvalds
20471da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
20481da177e4SLinus Torvalds	  ncpfs.  Say N unless you are connected to a Novell network.
20491da177e4SLinus Torvalds
20501da177e4SLinus Torvaldssource "fs/ncpfs/Kconfig"
20511da177e4SLinus Torvalds
20521da177e4SLinus Torvaldsconfig CODA_FS
20531da177e4SLinus Torvalds	tristate "Coda file system support (advanced network fs)"
20541da177e4SLinus Torvalds	depends on INET
20551da177e4SLinus Torvalds	help
20561da177e4SLinus Torvalds	  Coda is an advanced network file system, similar to NFS in that it
20571da177e4SLinus Torvalds	  enables you to mount file systems of a remote server and access them
20581da177e4SLinus Torvalds	  with regular Unix commands as if they were sitting on your hard
20591da177e4SLinus Torvalds	  disk.  Coda has several advantages over NFS: support for
20601da177e4SLinus Torvalds	  disconnected operation (e.g. for laptops), read/write server
20611da177e4SLinus Torvalds	  replication, security model for authentication and encryption,
20621da177e4SLinus Torvalds	  persistent client caches and write back caching.
20631da177e4SLinus Torvalds
20641da177e4SLinus Torvalds	  If you say Y here, your Linux box will be able to act as a Coda
20651da177e4SLinus Torvalds	  *client*.  You will need user level code as well, both for the
20661da177e4SLinus Torvalds	  client and server.  Servers are currently user level, i.e. they need
20671da177e4SLinus Torvalds	  no kernel support.  Please read
20681da177e4SLinus Torvalds	  <file:Documentation/filesystems/coda.txt> and check out the Coda
20691da177e4SLinus Torvalds	  home page <http://www.coda.cs.cmu.edu/>.
20701da177e4SLinus Torvalds
20711da177e4SLinus Torvalds	  To compile the coda client support as a module, choose M here: the
20721da177e4SLinus Torvalds	  module will be called coda.
20731da177e4SLinus Torvalds
20741da177e4SLinus Torvaldsconfig CODA_FS_OLD_API
20751da177e4SLinus Torvalds	bool "Use 96-bit Coda file identifiers"
20761da177e4SLinus Torvalds	depends on CODA_FS
20771da177e4SLinus Torvalds	help
20781da177e4SLinus Torvalds	  A new kernel-userspace API had to be introduced for Coda v6.0
20791da177e4SLinus Torvalds	  to support larger 128-bit file identifiers as needed by the
20801da177e4SLinus Torvalds	  new realms implementation.
20811da177e4SLinus Torvalds
20821da177e4SLinus Torvalds	  However this new API is not backward compatible with older
20831da177e4SLinus Torvalds	  clients. If you really need to run the old Coda userspace
20841da177e4SLinus Torvalds	  cache manager then say Y.
20851da177e4SLinus Torvalds
20861da177e4SLinus Torvalds	  For most cases you probably want to say N.
20871da177e4SLinus Torvalds
20881da177e4SLinus Torvaldsconfig AFS_FS
208964aaa4f8SDavid Howells	tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
20901da177e4SLinus Torvalds	depends on INET && EXPERIMENTAL
209108e0e7c8SDavid Howells	select AF_RXRPC
20921da177e4SLinus Torvalds	help
20931da177e4SLinus Torvalds	  If you say Y here, you will get an experimental Andrew File System
20941da177e4SLinus Torvalds	  driver. It currently only supports unsecured read-only AFS access.
20951da177e4SLinus Torvalds
2096cc2e2767SMatt LaPlante	  See <file:Documentation/filesystems/afs.txt> for more information.
20971da177e4SLinus Torvalds
20981da177e4SLinus Torvalds	  If unsure, say N.
20991da177e4SLinus Torvalds
210008e0e7c8SDavid Howellsconfig AFS_DEBUG
210108e0e7c8SDavid Howells	bool "AFS dynamic debugging"
210208e0e7c8SDavid Howells	depends on AFS_FS
210308e0e7c8SDavid Howells	help
210408e0e7c8SDavid Howells	  Say Y here to make runtime controllable debugging messages appear.
210508e0e7c8SDavid Howells
210608e0e7c8SDavid Howells	  See <file:Documentation/filesystems/afs.txt> for more information.
210708e0e7c8SDavid Howells
210808e0e7c8SDavid Howells	  If unsure, say N.
210908e0e7c8SDavid Howells
211093fa58cbSEric Van Hensbergenconfig 9P_FS
211193fa58cbSEric Van Hensbergen	tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
2112bd238fb4SLatchesar Ionkov	depends on INET && NET_9P && EXPERIMENTAL
211393fa58cbSEric Van Hensbergen	help
211493fa58cbSEric Van Hensbergen	  If you say Y here, you will get experimental support for
211593fa58cbSEric Van Hensbergen	  Plan 9 resource sharing via the 9P2000 protocol.
211693fa58cbSEric Van Hensbergen
211793fa58cbSEric Van Hensbergen	  See <http://v9fs.sf.net> for more information.
211893fa58cbSEric Van Hensbergen
211993fa58cbSEric Van Hensbergen	  If unsure, say N.
212093fa58cbSEric Van Hensbergen
2121ea0985adSJan Engelhardtendif # NETWORK_FILESYSTEMS
21221da177e4SLinus Torvalds
21239361401eSDavid Howellsif BLOCK
21241da177e4SLinus Torvaldsmenu "Partition Types"
21251da177e4SLinus Torvalds
21261da177e4SLinus Torvaldssource "fs/partitions/Kconfig"
21271da177e4SLinus Torvalds
21281da177e4SLinus Torvaldsendmenu
21299361401eSDavid Howellsendif
21301da177e4SLinus Torvalds
21311da177e4SLinus Torvaldssource "fs/nls/Kconfig"
2132e7fd4179SDavid Teiglandsource "fs/dlm/Kconfig"
21331da177e4SLinus Torvalds
21341da177e4SLinus Torvaldsendmenu
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