xref: /linux/fs/Kconfig (revision 717d50e4971b81b96c0199c91cdf0039a8cb181a)
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
143*717d50e4SAndreas 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"
2231da177e4SLinus Torvalds	depends on JBD
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
2321da177e4SLinus Torvalds	  with "echo N > /proc/sys/fs/jbd-debug", where N is a number between
2331da177e4SLinus Torvalds	  1 and 5, the higher the number, the more debugging output is
2341da177e4SLinus Torvalds	  generated.  To turn debugging off again, do
2351da177e4SLinus Torvalds	  "echo 0 > /proc/sys/fs/jbd-debug".
2361da177e4SLinus Torvalds
237dab291afSMingming Caoconfig JBD2
238dab291afSMingming Cao	tristate
239dab291afSMingming Cao	help
240dab291afSMingming Cao	  This is a generic journaling layer for block devices that support
241dab291afSMingming Cao	  both 32-bit and 64-bit block numbers.  It is currently used by
242dab291afSMingming Cao	  the ext4dev/ext4 filesystem, but it could also be used to add
243dab291afSMingming Cao	  journal support to other file systems or block devices such
244dab291afSMingming Cao	  as RAID or LVM.
245dab291afSMingming Cao
246dab291afSMingming Cao	  If you are using ext4dev/ext4, you need to say Y here. If you are not
247dab291afSMingming Cao	  using ext4dev/ext4 then you will probably want to say N.
248dab291afSMingming Cao
249dab291afSMingming Cao	  To compile this device as a module, choose M here. The module will be
250dab291afSMingming Cao	  called jbd2.  If you are compiling ext4dev/ext4 into the kernel,
251dab291afSMingming Cao	  you cannot compile this code as a module.
252dab291afSMingming Cao
253dab291afSMingming Caoconfig JBD2_DEBUG
254dab291afSMingming Cao	bool "JBD2 (ext4dev/ext4) debugging support"
2550f49d5d0SJose R. Santos	depends on JBD2 && DEBUG_FS
256dab291afSMingming Cao	help
257dab291afSMingming Cao	  If you are using the ext4dev/ext4 journaled file system (or
258dab291afSMingming Cao	  potentially any other filesystem/device using JBD2), this option
259dab291afSMingming Cao	  allows you to enable debugging output while the system is running,
260dab291afSMingming Cao	  in order to help track down any problems you are having.
261dab291afSMingming Cao	  By default, the debugging output will be turned off.
262dab291afSMingming Cao
263dab291afSMingming Cao	  If you select Y here, then you will be able to turn on debugging
2640f49d5d0SJose R. Santos	  with "echo N > /sys/kernel/debug/jbd2/jbd2-debug", where N is a
2650f49d5d0SJose R. Santos	  number between 1 and 5. The higher the number, the more debugging
2660f49d5d0SJose R. Santos	  output is generated.  To turn debugging off again, do
2670f49d5d0SJose R. Santos	  "echo 0 > /sys/kernel/debug/jbd2/jbd2-debug".
268dab291afSMingming Cao
2691da177e4SLinus Torvaldsconfig FS_MBCACHE
27002ea2104SMingming Cao# Meta block cache for Extended Attributes (ext2/ext3/ext4)
2711da177e4SLinus Torvalds	tristate
27202ea2104SMingming Cao	depends on EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4DEV_FS_XATTR
27302ea2104SMingming Cao	default y if EXT2_FS=y || EXT3_FS=y || EXT4DEV_FS=y
27402ea2104SMingming Cao	default m if EXT2_FS=m || EXT3_FS=m || EXT4DEV_FS=m
2751da177e4SLinus Torvalds
2761da177e4SLinus Torvaldsconfig REISERFS_FS
2771da177e4SLinus Torvalds	tristate "Reiserfs support"
2781da177e4SLinus Torvalds	help
2791da177e4SLinus Torvalds	  Stores not just filenames but the files themselves in a balanced
280cc2e2767SMatt LaPlante	  tree.  Uses journalling.
2811da177e4SLinus Torvalds
2821da177e4SLinus Torvalds	  Balanced trees are more efficient than traditional file system
2831da177e4SLinus Torvalds	  architectural foundations.
2841da177e4SLinus Torvalds
2851da177e4SLinus Torvalds	  In general, ReiserFS is as fast as ext2, but is very efficient with
2861da177e4SLinus Torvalds	  large directories and small files.  Additional patches are needed
2871da177e4SLinus Torvalds	  for NFS and quotas, please see <http://www.namesys.com/> for links.
2881da177e4SLinus Torvalds
2891da177e4SLinus Torvalds	  It is more easily extended to have features currently found in
2901da177e4SLinus Torvalds	  database and keyword search systems than block allocation based file
2911da177e4SLinus Torvalds	  systems are.  The next version will be so extended, and will support
2921da177e4SLinus Torvalds	  plugins consistent with our motto ``It takes more than a license to
2931da177e4SLinus Torvalds	  make source code open.''
2941da177e4SLinus Torvalds
2951da177e4SLinus Torvalds	  Read <http://www.namesys.com/> to learn more about reiserfs.
2961da177e4SLinus Torvalds
2971da177e4SLinus Torvalds	  Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com.
2981da177e4SLinus Torvalds
2991da177e4SLinus Torvalds	  If you like it, you can pay us to add new features to it that you
3001da177e4SLinus Torvalds	  need, buy a support contract, or pay us to port it to another OS.
3011da177e4SLinus Torvalds
3021da177e4SLinus Torvaldsconfig REISERFS_CHECK
3031da177e4SLinus Torvalds	bool "Enable reiserfs debug mode"
3041da177e4SLinus Torvalds	depends on REISERFS_FS
3051da177e4SLinus Torvalds	help
3061da177e4SLinus Torvalds	  If you set this to Y, then ReiserFS will perform every check it can
3071da177e4SLinus Torvalds	  possibly imagine of its internal consistency throughout its
3081da177e4SLinus Torvalds	  operation.  It will also go substantially slower.  More than once we
3091da177e4SLinus Torvalds	  have forgotten that this was on, and then gone despondent over the
3101da177e4SLinus Torvalds	  latest benchmarks.:-) Use of this option allows our team to go all
3111da177e4SLinus Torvalds	  out in checking for consistency when debugging without fear of its
3121da177e4SLinus Torvalds	  effect on end users.  If you are on the verge of sending in a bug
3131da177e4SLinus Torvalds	  report, say Y and you might get a useful error message.  Almost
3141da177e4SLinus Torvalds	  everyone should say N.
3151da177e4SLinus Torvalds
3161da177e4SLinus Torvaldsconfig REISERFS_PROC_INFO
3171da177e4SLinus Torvalds	bool "Stats in /proc/fs/reiserfs"
318880ebdc5SRandy Dunlap	depends on REISERFS_FS && PROC_FS
3191da177e4SLinus Torvalds	help
3201da177e4SLinus Torvalds	  Create under /proc/fs/reiserfs a hierarchy of files, displaying
3211da177e4SLinus Torvalds	  various ReiserFS statistics and internal data at the expense of
3221da177e4SLinus Torvalds	  making your kernel or module slightly larger (+8 KB). This also
3231da177e4SLinus Torvalds	  increases the amount of kernel memory required for each mount.
3241da177e4SLinus Torvalds	  Almost everyone but ReiserFS developers and people fine-tuning
3251da177e4SLinus Torvalds	  reiserfs or tracing problems should say N.
3261da177e4SLinus Torvalds
3271da177e4SLinus Torvaldsconfig REISERFS_FS_XATTR
3281da177e4SLinus Torvalds	bool "ReiserFS extended attributes"
3291da177e4SLinus Torvalds	depends on REISERFS_FS
3301da177e4SLinus Torvalds	help
3311da177e4SLinus Torvalds	  Extended attributes are name:value pairs associated with inodes by
3321da177e4SLinus Torvalds	  the kernel or by users (see the attr(5) manual page, or visit
3331da177e4SLinus Torvalds	  <http://acl.bestbits.at/> for details).
3341da177e4SLinus Torvalds
3351da177e4SLinus Torvalds	  If unsure, say N.
3361da177e4SLinus Torvalds
3371da177e4SLinus Torvaldsconfig REISERFS_FS_POSIX_ACL
3381da177e4SLinus Torvalds	bool "ReiserFS POSIX Access Control Lists"
3391da177e4SLinus Torvalds	depends on REISERFS_FS_XATTR
340b84c2157SAndreas Gruenbacher	select FS_POSIX_ACL
3411da177e4SLinus Torvalds	help
3421da177e4SLinus Torvalds	  Posix Access Control Lists (ACLs) support permissions for users and
3431da177e4SLinus Torvalds	  groups beyond the owner/group/world scheme.
3441da177e4SLinus Torvalds
3451da177e4SLinus Torvalds	  To learn more about Access Control Lists, visit the Posix ACLs for
3461da177e4SLinus Torvalds	  Linux website <http://acl.bestbits.at/>.
3471da177e4SLinus Torvalds
3481da177e4SLinus Torvalds	  If you don't know what Access Control Lists are, say N
3491da177e4SLinus Torvalds
3501da177e4SLinus Torvaldsconfig REISERFS_FS_SECURITY
3511da177e4SLinus Torvalds	bool "ReiserFS Security Labels"
3521da177e4SLinus Torvalds	depends on REISERFS_FS_XATTR
3531da177e4SLinus Torvalds	help
3541da177e4SLinus Torvalds	  Security labels support alternative access control models
3551da177e4SLinus Torvalds	  implemented by security modules like SELinux.  This option
3561da177e4SLinus Torvalds	  enables an extended attribute handler for file security
3571da177e4SLinus Torvalds	  labels in the ReiserFS filesystem.
3581da177e4SLinus Torvalds
3591da177e4SLinus Torvalds	  If you are not using a security module that requires using
3601da177e4SLinus Torvalds	  extended attributes for file security labels, say N.
3611da177e4SLinus Torvalds
3621da177e4SLinus Torvaldsconfig JFS_FS
3631da177e4SLinus Torvalds	tristate "JFS filesystem support"
3641da177e4SLinus Torvalds	select NLS
3651da177e4SLinus Torvalds	help
3661da177e4SLinus Torvalds	  This is a port of IBM's Journaled Filesystem .  More information is
3671da177e4SLinus Torvalds	  available in the file <file:Documentation/filesystems/jfs.txt>.
3681da177e4SLinus Torvalds
3691da177e4SLinus Torvalds	  If you do not intend to use the JFS filesystem, say N.
3701da177e4SLinus Torvalds
3711da177e4SLinus Torvaldsconfig JFS_POSIX_ACL
3721da177e4SLinus Torvalds	bool "JFS POSIX Access Control Lists"
3731da177e4SLinus Torvalds	depends on JFS_FS
374b84c2157SAndreas Gruenbacher	select FS_POSIX_ACL
3751da177e4SLinus Torvalds	help
3761da177e4SLinus Torvalds	  Posix Access Control Lists (ACLs) support permissions for users and
3771da177e4SLinus Torvalds	  groups beyond the owner/group/world scheme.
3781da177e4SLinus Torvalds
3791da177e4SLinus Torvalds	  To learn more about Access Control Lists, visit the Posix ACLs for
3801da177e4SLinus Torvalds	  Linux website <http://acl.bestbits.at/>.
3811da177e4SLinus Torvalds
3821da177e4SLinus Torvalds	  If you don't know what Access Control Lists are, say N
3831da177e4SLinus Torvalds
3841da177e4SLinus Torvaldsconfig JFS_SECURITY
3851da177e4SLinus Torvalds	bool "JFS Security Labels"
3861da177e4SLinus Torvalds	depends on JFS_FS
3871da177e4SLinus Torvalds	help
3881da177e4SLinus Torvalds	  Security labels support alternative access control models
3891da177e4SLinus Torvalds	  implemented by security modules like SELinux.  This option
3901da177e4SLinus Torvalds	  enables an extended attribute handler for file security
3911da177e4SLinus Torvalds	  labels in the jfs filesystem.
3921da177e4SLinus Torvalds
3931da177e4SLinus Torvalds	  If you are not using a security module that requires using
3941da177e4SLinus Torvalds	  extended attributes for file security labels, say N.
3951da177e4SLinus Torvalds
3961da177e4SLinus Torvaldsconfig JFS_DEBUG
3971da177e4SLinus Torvalds	bool "JFS debugging"
3981da177e4SLinus Torvalds	depends on JFS_FS
3991da177e4SLinus Torvalds	help
4001da177e4SLinus Torvalds	  If you are experiencing any problems with the JFS filesystem, say
4011da177e4SLinus Torvalds	  Y here.  This will result in additional debugging messages to be
4021da177e4SLinus Torvalds	  written to the system log.  Under normal circumstances, this
4031da177e4SLinus Torvalds	  results in very little overhead.
4041da177e4SLinus Torvalds
4051da177e4SLinus Torvaldsconfig JFS_STATISTICS
4061da177e4SLinus Torvalds	bool "JFS statistics"
4071da177e4SLinus Torvalds	depends on JFS_FS
4081da177e4SLinus Torvalds	help
4091da177e4SLinus Torvalds	  Enabling this option will cause statistics from the JFS file system
4101da177e4SLinus Torvalds	  to be made available to the user in the /proc/fs/jfs/ directory.
4111da177e4SLinus Torvalds
4121da177e4SLinus Torvaldsconfig FS_POSIX_ACL
4131da177e4SLinus Torvalds# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs)
4141da177e4SLinus Torvalds#
4151da177e4SLinus Torvalds# NOTE: you can implement Posix ACLs without these helpers (XFS does).
4161da177e4SLinus Torvalds# 	Never use this symbol for ifdefs.
4171da177e4SLinus Torvalds#
4181da177e4SLinus Torvalds	bool
419b84c2157SAndreas Gruenbacher	default n
4201da177e4SLinus Torvalds
4211da177e4SLinus Torvaldssource "fs/xfs/Kconfig"
422f7825dcfSDavid Teiglandsource "fs/gfs2/Kconfig"
4231da177e4SLinus Torvalds
424b4e40a51SMark Fashehconfig OCFS2_FS
42502ed8416SMark Fasheh	tristate "OCFS2 file system support"
42602ed8416SMark Fasheh	depends on NET && SYSFS
427b4e40a51SMark Fasheh	select CONFIGFS_FS
428b4e40a51SMark Fasheh	select JBD
429b4e40a51SMark Fasheh	select CRC32
430b4e40a51SMark Fasheh	help
431b4e40a51SMark Fasheh	  OCFS2 is a general purpose extent based shared disk cluster file
432b4e40a51SMark Fasheh	  system with many similarities to ext3. It supports 64 bit inode
433b4e40a51SMark Fasheh	  numbers, and has automatically extending metadata groups which may
434b4e40a51SMark Fasheh	  also make it attractive for non-clustered use.
435b4e40a51SMark Fasheh
436b4e40a51SMark Fasheh	  You'll want to install the ocfs2-tools package in order to at least
437b4e40a51SMark Fasheh	  get "mount.ocfs2".
438b4e40a51SMark Fasheh
439b4e40a51SMark Fasheh	  Project web page:    http://oss.oracle.com/projects/ocfs2
440b4e40a51SMark Fasheh	  Tools web page:      http://oss.oracle.com/projects/ocfs2-tools
441b4e40a51SMark Fasheh	  OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/
442b4e40a51SMark Fasheh
443b4e40a51SMark Fasheh	  Note: Features which OCFS2 does not support yet:
444b4e40a51SMark Fasheh	          - extended attributes
445b4e40a51SMark Fasheh	          - quotas
446b4e40a51SMark Fasheh	          - cluster aware flock
447b4e40a51SMark Fasheh	          - Directory change notification (F_NOTIFY)
448b4e40a51SMark Fasheh	          - Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease)
449b4e40a51SMark Fasheh	          - POSIX ACLs
450b4e40a51SMark Fasheh	          - readpages / writepages (not user visible)
451b4e40a51SMark Fasheh
4522b388c67SJoel Beckerconfig OCFS2_DEBUG_MASKLOG
4532b388c67SJoel Becker	bool "OCFS2 logging support"
4542b388c67SJoel Becker	depends on OCFS2_FS
4552b388c67SJoel Becker	default y
4562b388c67SJoel Becker	help
4572b388c67SJoel Becker	  The ocfs2 filesystem has an extensive logging system.  The system
4582b388c67SJoel Becker	  allows selection of events to log via files in /sys/o2cb/logmask/.
4592b388c67SJoel Becker	  This option will enlarge your kernel, but it allows debugging of
4602b388c67SJoel Becker	  ocfs2 filesystem issues.
4612b388c67SJoel Becker
4621da177e4SLinus Torvaldsconfig MINIX_FS
4631da177e4SLinus Torvalds	tristate "Minix fs support"
4641da177e4SLinus Torvalds	help
4651da177e4SLinus Torvalds	  Minix is a simple operating system used in many classes about OS's.
4661da177e4SLinus Torvalds	  The minix file system (method to organize files on a hard disk
4671da177e4SLinus Torvalds	  partition or a floppy disk) was the original file system for Linux,
4681da177e4SLinus Torvalds	  but has been superseded by the second extended file system ext2fs.
4691da177e4SLinus Torvalds	  You don't want to use the minix file system on your hard disk
4701da177e4SLinus Torvalds	  because of certain built-in restrictions, but it is sometimes found
4711da177e4SLinus Torvalds	  on older Linux floppy disks.  This option will enlarge your kernel
4721da177e4SLinus Torvalds	  by about 28 KB. If unsure, say N.
4731da177e4SLinus Torvalds
4741da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
4751da177e4SLinus Torvalds	  module will be called minix.  Note that the file system of your root
4761da177e4SLinus Torvalds	  partition (the one containing the directory /) cannot be compiled as
4771da177e4SLinus Torvalds	  a module.
4781da177e4SLinus Torvalds
4791da177e4SLinus Torvaldsconfig ROMFS_FS
4801da177e4SLinus Torvalds	tristate "ROM file system support"
4811da177e4SLinus Torvalds	---help---
4821da177e4SLinus Torvalds	  This is a very small read-only file system mainly intended for
4831da177e4SLinus Torvalds	  initial ram disks of installation disks, but it could be used for
4841da177e4SLinus Torvalds	  other read-only media as well.  Read
4851da177e4SLinus Torvalds	  <file:Documentation/filesystems/romfs.txt> for details.
4861da177e4SLinus Torvalds
4871da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
4881da177e4SLinus Torvalds	  module will be called romfs.  Note that the file system of your
4891da177e4SLinus Torvalds	  root partition (the one containing the directory /) cannot be a
4901da177e4SLinus Torvalds	  module.
4911da177e4SLinus Torvalds
4921da177e4SLinus Torvalds	  If you don't know whether you need it, then you don't need it:
4931da177e4SLinus Torvalds	  answer N.
4941da177e4SLinus Torvalds
4959361401eSDavid Howellsendif
4969361401eSDavid Howells
4970eeca283SRobert Loveconfig INOTIFY
4980eeca283SRobert Love	bool "Inotify file change notification support"
4990eeca283SRobert Love	default y
5000eeca283SRobert Love	---help---
5012d9048e2SAmy Griffis	  Say Y here to enable inotify support.  Inotify is a file change
5022d9048e2SAmy Griffis	  notification system and a replacement for dnotify.  Inotify fixes
5032d9048e2SAmy Griffis	  numerous shortcomings in dnotify and introduces several new features
5042d9048e2SAmy Griffis	  including multiple file events, one-shot support, and unmount
5053de11748SRobert Love	  notification.
5063de11748SRobert Love
5073de11748SRobert Love	  For more information, see Documentation/filesystems/inotify.txt
5080eeca283SRobert Love
5090eeca283SRobert Love	  If unsure, say Y.
5100eeca283SRobert Love
5112d9048e2SAmy Griffisconfig INOTIFY_USER
5122d9048e2SAmy Griffis	bool "Inotify support for userspace"
5132d9048e2SAmy Griffis	depends on INOTIFY
5142d9048e2SAmy Griffis	default y
5152d9048e2SAmy Griffis	---help---
5162d9048e2SAmy Griffis	  Say Y here to enable inotify support for userspace, including the
5172d9048e2SAmy Griffis	  associated system calls.  Inotify allows monitoring of both files and
5182d9048e2SAmy Griffis	  directories via a single open fd.  Events are read from the file
5192d9048e2SAmy Griffis	  descriptor, which is also select()- and poll()-able.
5202d9048e2SAmy Griffis
5212d9048e2SAmy Griffis	  For more information, see Documentation/filesystems/inotify.txt
5222d9048e2SAmy Griffis
5232d9048e2SAmy Griffis	  If unsure, say Y.
5242d9048e2SAmy Griffis
5251da177e4SLinus Torvaldsconfig QUOTA
5261da177e4SLinus Torvalds	bool "Quota support"
5271da177e4SLinus Torvalds	help
5281da177e4SLinus Torvalds	  If you say Y here, you will be able to set per user limits for disk
5291da177e4SLinus Torvalds	  usage (also called disk quotas). Currently, it works for the
5301da177e4SLinus Torvalds	  ext2, ext3, and reiserfs file system. ext3 also supports journalled
5311da177e4SLinus Torvalds	  quotas for which you don't need to run quotacheck(8) after an unclean
532919532a5SAdrian Bunk	  shutdown.
533919532a5SAdrian Bunk	  For further details, read the Quota mini-HOWTO, available from
5341da177e4SLinus Torvalds	  <http://www.tldp.org/docs.html#howto>, or the documentation provided
5351da177e4SLinus Torvalds	  with the quota tools. Probably the quota support is only useful for
5361da177e4SLinus Torvalds	  multi user systems. If unsure, say N.
5371da177e4SLinus Torvalds
5388e893469SJan Karaconfig QUOTA_NETLINK_INTERFACE
5398e893469SJan Kara	bool "Report quota messages through netlink interface"
5408e893469SJan Kara	depends on QUOTA && NET
5418e893469SJan Kara	help
5428e893469SJan Kara	  If you say Y here, quota warnings (about exceeding softlimit, reaching
5438e893469SJan Kara	  hardlimit, etc.) will be reported through netlink interface. If unsure,
5448e893469SJan Kara	  say Y.
5458e893469SJan Kara
5468e893469SJan Karaconfig PRINT_QUOTA_WARNING
5478e893469SJan Kara	bool "Print quota warnings to console (OBSOLETE)"
5488e893469SJan Kara	depends on QUOTA
5498e893469SJan Kara	default y
5508e893469SJan Kara	help
5518e893469SJan Kara	  If you say Y here, quota warnings (about exceeding softlimit, reaching
5528e893469SJan Kara	  hardlimit, etc.) will be printed to the process' controlling terminal.
5538e893469SJan Kara	  Note that this behavior is currently deprecated and may go away in
5548e893469SJan Kara	  future. Please use notification via netlink socket instead.
5558e893469SJan Kara
5561da177e4SLinus Torvaldsconfig QFMT_V1
5571da177e4SLinus Torvalds	tristate "Old quota format support"
5581da177e4SLinus Torvalds	depends on QUOTA
5591da177e4SLinus Torvalds	help
5601da177e4SLinus Torvalds	  This quota format was (is) used by kernels earlier than 2.4.22. If
5611da177e4SLinus Torvalds	  you have quota working and you don't want to convert to new quota
5621da177e4SLinus Torvalds	  format say Y here.
5631da177e4SLinus Torvalds
5641da177e4SLinus Torvaldsconfig QFMT_V2
5651da177e4SLinus Torvalds	tristate "Quota format v2 support"
5661da177e4SLinus Torvalds	depends on QUOTA
5671da177e4SLinus Torvalds	help
5681da177e4SLinus Torvalds	  This quota format allows using quotas with 32-bit UIDs/GIDs. If you
569919532a5SAdrian Bunk	  need this functionality say Y here.
5701da177e4SLinus Torvalds
5711da177e4SLinus Torvaldsconfig QUOTACTL
5721da177e4SLinus Torvalds	bool
5731da177e4SLinus Torvalds	depends on XFS_QUOTA || QUOTA
5741da177e4SLinus Torvalds	default y
5751da177e4SLinus Torvalds
5761da177e4SLinus Torvaldsconfig DNOTIFY
5777e341fa1SAdrian Bunk	bool "Dnotify support"
5781da177e4SLinus Torvalds	default y
5791da177e4SLinus Torvalds	help
5801da177e4SLinus Torvalds	  Dnotify is a directory-based per-fd file change notification system
5811da177e4SLinus Torvalds	  that uses signals to communicate events to user-space.  There exist
5821da177e4SLinus Torvalds	  superior alternatives, but some applications may still rely on
5831da177e4SLinus Torvalds	  dnotify.
5841da177e4SLinus Torvalds
5857e341fa1SAdrian Bunk	  If unsure, say Y.
5861da177e4SLinus Torvalds
5871da177e4SLinus Torvaldsconfig AUTOFS_FS
5881da177e4SLinus Torvalds	tristate "Kernel automounter support"
5891da177e4SLinus Torvalds	help
5901da177e4SLinus Torvalds	  The automounter is a tool to automatically mount remote file systems
5911da177e4SLinus Torvalds	  on demand. This implementation is partially kernel-based to reduce
5921da177e4SLinus Torvalds	  overhead in the already-mounted case; this is unlike the BSD
5931da177e4SLinus Torvalds	  automounter (amd), which is a pure user space daemon.
5941da177e4SLinus Torvalds
5951da177e4SLinus Torvalds	  To use the automounter you need the user-space tools from the autofs
5961da177e4SLinus Torvalds	  package; you can find the location in <file:Documentation/Changes>.
5971da177e4SLinus Torvalds	  You also want to answer Y to "NFS file system support", below.
5981da177e4SLinus Torvalds
5991da177e4SLinus Torvalds	  If you want to use the newer version of the automounter with more
6001da177e4SLinus Torvalds	  features, say N here and say Y to "Kernel automounter v4 support",
6011da177e4SLinus Torvalds	  below.
6021da177e4SLinus Torvalds
6031da177e4SLinus Torvalds	  To compile this support as a module, choose M here: the module will be
6041da177e4SLinus Torvalds	  called autofs.
6051da177e4SLinus Torvalds
6061da177e4SLinus Torvalds	  If you are not a part of a fairly large, distributed network, you
6071da177e4SLinus Torvalds	  probably do not need an automounter, and can say N here.
6081da177e4SLinus Torvalds
6091da177e4SLinus Torvaldsconfig AUTOFS4_FS
6101da177e4SLinus Torvalds	tristate "Kernel automounter version 4 support (also supports v3)"
6111da177e4SLinus Torvalds	help
6121da177e4SLinus Torvalds	  The automounter is a tool to automatically mount remote file systems
6131da177e4SLinus Torvalds	  on demand. This implementation is partially kernel-based to reduce
6141da177e4SLinus Torvalds	  overhead in the already-mounted case; this is unlike the BSD
6151da177e4SLinus Torvalds	  automounter (amd), which is a pure user space daemon.
6161da177e4SLinus Torvalds
6171da177e4SLinus Torvalds	  To use the automounter you need the user-space tools from
6181da177e4SLinus Torvalds	  <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
6191da177e4SLinus Torvalds	  want to answer Y to "NFS file system support", below.
6201da177e4SLinus Torvalds
6211da177e4SLinus Torvalds	  To compile this support as a module, choose M here: the module will be
6221da177e4SLinus Torvalds	  called autofs4.  You will need to add "alias autofs autofs4" to your
6231da177e4SLinus Torvalds	  modules configuration file.
6241da177e4SLinus Torvalds
6251da177e4SLinus Torvalds	  If you are not a part of a fairly large, distributed network or
6261da177e4SLinus Torvalds	  don't have a laptop which needs to dynamically reconfigure to the
6271da177e4SLinus Torvalds	  local network, you probably do not need an automounter, and can say
6281da177e4SLinus Torvalds	  N here.
6291da177e4SLinus Torvalds
63004578f17SMiklos Szerediconfig FUSE_FS
63104578f17SMiklos Szeredi	tristate "Filesystem in Userspace support"
63204578f17SMiklos Szeredi	help
63304578f17SMiklos Szeredi	  With FUSE it is possible to implement a fully functional filesystem
63404578f17SMiklos Szeredi	  in a userspace program.
63504578f17SMiklos Szeredi
63604578f17SMiklos Szeredi	  There's also companion library: libfuse.  This library along with
63704578f17SMiklos Szeredi	  utilities is available from the FUSE homepage:
63804578f17SMiklos Szeredi	  <http://fuse.sourceforge.net/>
63904578f17SMiklos Szeredi
640909021eaSMiklos Szeredi	  See <file:Documentation/filesystems/fuse.txt> for more information.
641909021eaSMiklos Szeredi	  See <file:Documentation/Changes> for needed library/utility version.
642909021eaSMiklos Szeredi
64304578f17SMiklos Szeredi	  If you want to develop a userspace FS, or if you want to use
64404578f17SMiklos Szeredi	  a filesystem based on FUSE, answer Y or M.
64504578f17SMiklos Szeredi
646f2fbc6c2SRandy Dunlapconfig GENERIC_ACL
647f2fbc6c2SRandy Dunlap	bool
648f2fbc6c2SRandy Dunlap	select FS_POSIX_ACL
649f2fbc6c2SRandy Dunlap
6509361401eSDavid Howellsif BLOCK
6511da177e4SLinus Torvaldsmenu "CD-ROM/DVD Filesystems"
6521da177e4SLinus Torvalds
6531da177e4SLinus Torvaldsconfig ISO9660_FS
6541da177e4SLinus Torvalds	tristate "ISO 9660 CDROM file system support"
6551da177e4SLinus Torvalds	help
6561da177e4SLinus Torvalds	  This is the standard file system used on CD-ROMs.  It was previously
6571da177e4SLinus Torvalds	  known as "High Sierra File System" and is called "hsfs" on other
6581da177e4SLinus Torvalds	  Unix systems.  The so-called Rock-Ridge extensions which allow for
6591da177e4SLinus Torvalds	  long Unix filenames and symbolic links are also supported by this
6601da177e4SLinus Torvalds	  driver.  If you have a CD-ROM drive and want to do more with it than
6611da177e4SLinus Torvalds	  just listen to audio CDs and watch its LEDs, say Y (and read
6621da177e4SLinus Torvalds	  <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO,
6631da177e4SLinus Torvalds	  available from <http://www.tldp.org/docs.html#howto>), thereby
6641da177e4SLinus Torvalds	  enlarging your kernel by about 27 KB; otherwise say N.
6651da177e4SLinus Torvalds
6661da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
6671da177e4SLinus Torvalds	  module will be called isofs.
6681da177e4SLinus Torvalds
6691da177e4SLinus Torvaldsconfig JOLIET
6701da177e4SLinus Torvalds	bool "Microsoft Joliet CDROM extensions"
6711da177e4SLinus Torvalds	depends on ISO9660_FS
6721da177e4SLinus Torvalds	select NLS
6731da177e4SLinus Torvalds	help
6741da177e4SLinus Torvalds	  Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
6751da177e4SLinus Torvalds	  which allows for long filenames in unicode format (unicode is the
6761da177e4SLinus Torvalds	  new 16 bit character code, successor to ASCII, which encodes the
6771da177e4SLinus Torvalds	  characters of almost all languages of the world; see
6781da177e4SLinus Torvalds	  <http://www.unicode.org/> for more information).  Say Y here if you
6791da177e4SLinus Torvalds	  want to be able to read Joliet CD-ROMs under Linux.
6801da177e4SLinus Torvalds
6811da177e4SLinus Torvaldsconfig ZISOFS
6821da177e4SLinus Torvalds	bool "Transparent decompression extension"
6831da177e4SLinus Torvalds	depends on ISO9660_FS
6841da177e4SLinus Torvalds	select ZLIB_INFLATE
6851da177e4SLinus Torvalds	help
6861da177e4SLinus Torvalds	  This is a Linux-specific extension to RockRidge which lets you store
6871da177e4SLinus Torvalds	  data in compressed form on a CD-ROM and have it transparently
6881da177e4SLinus Torvalds	  decompressed when the CD-ROM is accessed.  See
6891da177e4SLinus Torvalds	  <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
6901da177e4SLinus Torvalds	  necessary to create such a filesystem.  Say Y here if you want to be
6911da177e4SLinus Torvalds	  able to read such compressed CD-ROMs.
6921da177e4SLinus Torvalds
6931da177e4SLinus Torvaldsconfig UDF_FS
6941da177e4SLinus Torvalds	tristate "UDF file system support"
6951da177e4SLinus Torvalds	help
6961da177e4SLinus Torvalds	  This is the new file system used on some CD-ROMs and DVDs. Say Y if
6971da177e4SLinus Torvalds	  you intend to mount DVD discs or CDRW's written in packet mode, or
6981da177e4SLinus Torvalds	  if written to by other UDF utilities, such as DirectCD.
6991da177e4SLinus Torvalds	  Please read <file:Documentation/filesystems/udf.txt>.
7001da177e4SLinus Torvalds
7011da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
7021da177e4SLinus Torvalds	  module will be called udf.
7031da177e4SLinus Torvalds
7041da177e4SLinus Torvalds	  If unsure, say N.
7051da177e4SLinus Torvalds
7061da177e4SLinus Torvaldsconfig UDF_NLS
7071da177e4SLinus Torvalds	bool
7081da177e4SLinus Torvalds	default y
7091da177e4SLinus Torvalds	depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
7101da177e4SLinus Torvalds
7111da177e4SLinus Torvaldsendmenu
7129361401eSDavid Howellsendif
7131da177e4SLinus Torvalds
7149361401eSDavid Howellsif BLOCK
7151da177e4SLinus Torvaldsmenu "DOS/FAT/NT Filesystems"
7161da177e4SLinus Torvalds
7171da177e4SLinus Torvaldsconfig FAT_FS
7181da177e4SLinus Torvalds	tristate
7191da177e4SLinus Torvalds	select NLS
7201da177e4SLinus Torvalds	help
7211da177e4SLinus Torvalds	  If you want to use one of the FAT-based file systems (the MS-DOS and
7221da177e4SLinus Torvalds	  VFAT (Windows 95) file systems), then you must say Y or M here
7231da177e4SLinus Torvalds	  to include FAT support. You will then be able to mount partitions or
7241da177e4SLinus Torvalds	  diskettes with FAT-based file systems and transparently access the
7251da177e4SLinus Torvalds	  files on them, i.e. MSDOS files will look and behave just like all
7261da177e4SLinus Torvalds	  other Unix files.
7271da177e4SLinus Torvalds
7281da177e4SLinus Torvalds	  This FAT support is not a file system in itself, it only provides
7291da177e4SLinus Torvalds	  the foundation for the other file systems. You will have to say Y or
7301da177e4SLinus Torvalds	  M to at least one of "MSDOS fs support" or "VFAT fs support" in
7311da177e4SLinus Torvalds	  order to make use of it.
7321da177e4SLinus Torvalds
7331da177e4SLinus Torvalds	  Another way to read and write MSDOS floppies and hard drive
7341da177e4SLinus Torvalds	  partitions from within Linux (but not transparently) is with the
7351da177e4SLinus Torvalds	  mtools ("man mtools") program suite. You don't need to say Y here in
7361da177e4SLinus Torvalds	  order to do that.
7371da177e4SLinus Torvalds
7381da177e4SLinus Torvalds	  If you need to move large files on floppies between a DOS and a
7391da177e4SLinus Torvalds	  Linux box, say Y here, mount the floppy under Linux with an MSDOS
7401da177e4SLinus Torvalds	  file system and use GNU tar's M option. GNU tar is a program
7411da177e4SLinus Torvalds	  available for Unix and DOS ("man tar" or "info tar").
7421da177e4SLinus Torvalds
7431da177e4SLinus Torvalds	  The FAT support will enlarge your kernel by about 37 KB. If unsure,
7441da177e4SLinus Torvalds	  say Y.
7451da177e4SLinus Torvalds
7461da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
7471da177e4SLinus Torvalds	  fat.  Note that if you compile the FAT support as a module, you
7481da177e4SLinus Torvalds	  cannot compile any of the FAT-based file systems into the kernel
7491da177e4SLinus Torvalds	  -- they will have to be modules as well.
7501da177e4SLinus Torvalds
7511da177e4SLinus Torvaldsconfig MSDOS_FS
7521da177e4SLinus Torvalds	tristate "MSDOS fs support"
7531da177e4SLinus Torvalds	select FAT_FS
7541da177e4SLinus Torvalds	help
7551da177e4SLinus Torvalds	  This allows you to mount MSDOS partitions of your hard drive (unless
7561da177e4SLinus Torvalds	  they are compressed; to access compressed MSDOS partitions under
7571da177e4SLinus Torvalds	  Linux, you can either use the DOS emulator DOSEMU, described in the
7581da177e4SLinus Torvalds	  DOSEMU-HOWTO, available from
7591da177e4SLinus Torvalds	  <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
7601da177e4SLinus Torvalds	  <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
7611da177e4SLinus Torvalds	  intend to use dosemu with a non-compressed MSDOS partition, say Y
7621da177e4SLinus Torvalds	  here) and MSDOS floppies. This means that file access becomes
7631da177e4SLinus Torvalds	  transparent, i.e. the MSDOS files look and behave just like all
7641da177e4SLinus Torvalds	  other Unix files.
7651da177e4SLinus Torvalds
7661da177e4SLinus Torvalds	  If you have Windows 95 or Windows NT installed on your MSDOS
7671da177e4SLinus Torvalds	  partitions, you should use the VFAT file system (say Y to "VFAT fs
7681da177e4SLinus Torvalds	  support" below), or you will not be able to see the long filenames
7691da177e4SLinus Torvalds	  generated by Windows 95 / Windows NT.
7701da177e4SLinus Torvalds
7711da177e4SLinus Torvalds	  This option will enlarge your kernel by about 7 KB. If unsure,
7721da177e4SLinus Torvalds	  answer Y. This will only work if you said Y to "DOS FAT fs support"
7731da177e4SLinus Torvalds	  as well. To compile this as a module, choose M here: the module will
7741da177e4SLinus Torvalds	  be called msdos.
7751da177e4SLinus Torvalds
7761da177e4SLinus Torvaldsconfig VFAT_FS
7771da177e4SLinus Torvalds	tristate "VFAT (Windows-95) fs support"
7781da177e4SLinus Torvalds	select FAT_FS
7791da177e4SLinus Torvalds	help
7801da177e4SLinus Torvalds	  This option provides support for normal Windows file systems with
7811da177e4SLinus Torvalds	  long filenames.  That includes non-compressed FAT-based file systems
7821da177e4SLinus Torvalds	  used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
7831da177e4SLinus Torvalds	  programs from the mtools package.
7841da177e4SLinus Torvalds
7851da177e4SLinus Torvalds	  The VFAT support enlarges your kernel by about 10 KB and it only
7861da177e4SLinus Torvalds	  works if you said Y to the "DOS FAT fs support" above.  Please read
7871da177e4SLinus Torvalds	  the file <file:Documentation/filesystems/vfat.txt> for details.  If
7881da177e4SLinus Torvalds	  unsure, say Y.
7891da177e4SLinus Torvalds
7901da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
7911da177e4SLinus Torvalds	  vfat.
7921da177e4SLinus Torvalds
7931da177e4SLinus Torvaldsconfig FAT_DEFAULT_CODEPAGE
7941da177e4SLinus Torvalds	int "Default codepage for FAT"
7951da177e4SLinus Torvalds	depends on MSDOS_FS || VFAT_FS
7961da177e4SLinus Torvalds	default 437
7971da177e4SLinus Torvalds	help
7981da177e4SLinus Torvalds	  This option should be set to the codepage of your FAT filesystems.
7991da177e4SLinus Torvalds	  It can be overridden with the "codepage" mount option.
8001da177e4SLinus Torvalds	  See <file:Documentation/filesystems/vfat.txt> for more information.
8011da177e4SLinus Torvalds
8021da177e4SLinus Torvaldsconfig FAT_DEFAULT_IOCHARSET
8031da177e4SLinus Torvalds	string "Default iocharset for FAT"
8041da177e4SLinus Torvalds	depends on VFAT_FS
8051da177e4SLinus Torvalds	default "iso8859-1"
8061da177e4SLinus Torvalds	help
8071da177e4SLinus Torvalds	  Set this to the default input/output character set you'd
8081da177e4SLinus Torvalds	  like FAT to use. It should probably match the character set
8091da177e4SLinus Torvalds	  that most of your FAT filesystems use, and can be overridden
8101da177e4SLinus Torvalds	  with the "iocharset" mount option for FAT filesystems.
8111da177e4SLinus Torvalds	  Note that "utf8" is not recommended for FAT filesystems.
8121da177e4SLinus Torvalds	  If unsure, you shouldn't set "utf8" here.
8131da177e4SLinus Torvalds	  See <file:Documentation/filesystems/vfat.txt> for more information.
8141da177e4SLinus Torvalds
8151da177e4SLinus Torvaldsconfig NTFS_FS
8161da177e4SLinus Torvalds	tristate "NTFS file system support"
8171da177e4SLinus Torvalds	select NLS
8181da177e4SLinus Torvalds	help
8191da177e4SLinus Torvalds	  NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
8201da177e4SLinus Torvalds
8211da177e4SLinus Torvalds	  Saying Y or M here enables read support.  There is partial, but
8221da177e4SLinus Torvalds	  safe, write support available.  For write support you must also
8231da177e4SLinus Torvalds	  say Y to "NTFS write support" below.
8241da177e4SLinus Torvalds
8251da177e4SLinus Torvalds	  There are also a number of user-space tools available, called
8261da177e4SLinus Torvalds	  ntfsprogs.  These include ntfsundelete and ntfsresize, that work
8271da177e4SLinus Torvalds	  without NTFS support enabled in the kernel.
8281da177e4SLinus Torvalds
8291da177e4SLinus Torvalds	  This is a rewrite from scratch of Linux NTFS support and replaced
8301da177e4SLinus Torvalds	  the old NTFS code starting with Linux 2.5.11.  A backport to
8311da177e4SLinus Torvalds	  the Linux 2.4 kernel series is separately available as a patch
8321da177e4SLinus Torvalds	  from the project web site.
8331da177e4SLinus Torvalds
8341da177e4SLinus Torvalds	  For more information see <file:Documentation/filesystems/ntfs.txt>
8351da177e4SLinus Torvalds	  and <http://linux-ntfs.sourceforge.net/>.
8361da177e4SLinus Torvalds
8371da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
8381da177e4SLinus Torvalds	  module will be called ntfs.
8391da177e4SLinus Torvalds
8401da177e4SLinus Torvalds	  If you are not using Windows NT, 2000, XP or 2003 in addition to
8411da177e4SLinus Torvalds	  Linux on your computer it is safe to say N.
8421da177e4SLinus Torvalds
8431da177e4SLinus Torvaldsconfig NTFS_DEBUG
8441da177e4SLinus Torvalds	bool "NTFS debugging support"
8451da177e4SLinus Torvalds	depends on NTFS_FS
8461da177e4SLinus Torvalds	help
8471da177e4SLinus Torvalds	  If you are experiencing any problems with the NTFS file system, say
8481da177e4SLinus Torvalds	  Y here.  This will result in additional consistency checks to be
8491da177e4SLinus Torvalds	  performed by the driver as well as additional debugging messages to
8501da177e4SLinus Torvalds	  be written to the system log.  Note that debugging messages are
8511da177e4SLinus Torvalds	  disabled by default.  To enable them, supply the option debug_msgs=1
8521da177e4SLinus Torvalds	  at the kernel command line when booting the kernel or as an option
8531da177e4SLinus Torvalds	  to insmod when loading the ntfs module.  Once the driver is active,
8541da177e4SLinus Torvalds	  you can enable debugging messages by doing (as root):
8551da177e4SLinus Torvalds	  echo 1 > /proc/sys/fs/ntfs-debug
8561da177e4SLinus Torvalds	  Replacing the "1" with "0" would disable debug messages.
8571da177e4SLinus Torvalds
8581da177e4SLinus Torvalds	  If you leave debugging messages disabled, this results in little
8591da177e4SLinus Torvalds	  overhead, but enabling debug messages results in very significant
8601da177e4SLinus Torvalds	  slowdown of the system.
8611da177e4SLinus Torvalds
8621da177e4SLinus Torvalds	  When reporting bugs, please try to have available a full dump of
8631da177e4SLinus Torvalds	  debugging messages while the misbehaviour was occurring.
8641da177e4SLinus Torvalds
8651da177e4SLinus Torvaldsconfig NTFS_RW
8661da177e4SLinus Torvalds	bool "NTFS write support"
8671da177e4SLinus Torvalds	depends on NTFS_FS
8681da177e4SLinus Torvalds	help
8691da177e4SLinus Torvalds	  This enables the partial, but safe, write support in the NTFS driver.
8701da177e4SLinus Torvalds
8711da177e4SLinus Torvalds	  The only supported operation is overwriting existing files, without
8721da177e4SLinus Torvalds	  changing the file length.  No file or directory creation, deletion or
8731da177e4SLinus Torvalds	  renaming is possible.  Note only non-resident files can be written to
8741da177e4SLinus Torvalds	  so you may find that some very small files (<500 bytes or so) cannot
8751da177e4SLinus Torvalds	  be written to.
8761da177e4SLinus Torvalds
8771da177e4SLinus Torvalds	  While we cannot guarantee that it will not damage any data, we have
8781da177e4SLinus Torvalds	  so far not received a single report where the driver would have
8791da177e4SLinus Torvalds	  damaged someones data so we assume it is perfectly safe to use.
8801da177e4SLinus Torvalds
8811da177e4SLinus Torvalds	  Note:  While write support is safe in this version (a rewrite from
8821da177e4SLinus Torvalds	  scratch of the NTFS support), it should be noted that the old NTFS
8831da177e4SLinus Torvalds	  write support, included in Linux 2.5.10 and before (since 1997),
8841da177e4SLinus Torvalds	  is not safe.
8851da177e4SLinus Torvalds
8861da177e4SLinus Torvalds	  This is currently useful with TopologiLinux.  TopologiLinux is run
8871da177e4SLinus Torvalds	  on top of any DOS/Microsoft Windows system without partitioning your
8881da177e4SLinus Torvalds	  hard disk.  Unlike other Linux distributions TopologiLinux does not
8891da177e4SLinus Torvalds	  need its own partition.  For more information see
8901da177e4SLinus Torvalds	  <http://topologi-linux.sourceforge.net/>
8911da177e4SLinus Torvalds
8921da177e4SLinus Torvalds	  It is perfectly safe to say N here.
8931da177e4SLinus Torvalds
8941da177e4SLinus Torvaldsendmenu
8959361401eSDavid Howellsendif
8961da177e4SLinus Torvalds
8971da177e4SLinus Torvaldsmenu "Pseudo filesystems"
8981da177e4SLinus Torvalds
8991da177e4SLinus Torvaldsconfig PROC_FS
90069755652SH. Peter Anvin	bool "/proc file system support" if EMBEDDED
90169755652SH. Peter Anvin	default y
9021da177e4SLinus Torvalds	help
9031da177e4SLinus Torvalds	  This is a virtual file system providing information about the status
9041da177e4SLinus Torvalds	  of the system. "Virtual" means that it doesn't take up any space on
9051da177e4SLinus Torvalds	  your hard disk: the files are created on the fly by the kernel when
9061da177e4SLinus Torvalds	  you try to access them. Also, you cannot read the files with older
9071da177e4SLinus Torvalds	  version of the program less: you need to use more or cat.
9081da177e4SLinus Torvalds
9091da177e4SLinus Torvalds	  It's totally cool; for example, "cat /proc/interrupts" gives
9101da177e4SLinus Torvalds	  information about what the different IRQs are used for at the moment
9111da177e4SLinus Torvalds	  (there is a small number of Interrupt ReQuest lines in your computer
9121da177e4SLinus Torvalds	  that are used by the attached devices to gain the CPU's attention --
9131da177e4SLinus Torvalds	  often a source of trouble if two devices are mistakenly configured
9141da177e4SLinus Torvalds	  to use the same IRQ). The program procinfo to display some
9151da177e4SLinus Torvalds	  information about your system gathered from the /proc file system.
9161da177e4SLinus Torvalds
9171da177e4SLinus Torvalds	  Before you can use the /proc file system, it has to be mounted,
9181da177e4SLinus Torvalds	  meaning it has to be given a location in the directory hierarchy.
9191da177e4SLinus Torvalds	  That location should be /proc. A command such as "mount -t proc proc
9201da177e4SLinus Torvalds	  /proc" or the equivalent line in /etc/fstab does the job.
9211da177e4SLinus Torvalds
9221da177e4SLinus Torvalds	  The /proc file system is explained in the file
9231da177e4SLinus Torvalds	  <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
9241da177e4SLinus Torvalds	  ("man 5 proc").
9251da177e4SLinus Torvalds
9261da177e4SLinus Torvalds	  This option will enlarge your kernel by about 67 KB. Several
9271da177e4SLinus Torvalds	  programs depend on this, so everyone should say Y here.
9281da177e4SLinus Torvalds
9291da177e4SLinus Torvaldsconfig PROC_KCORE
9301da177e4SLinus Torvalds	bool "/proc/kcore support" if !ARM
9311da177e4SLinus Torvalds	depends on PROC_FS && MMU
9321da177e4SLinus Torvalds
933666bfddbSVivek Goyalconfig PROC_VMCORE
934666bfddbSVivek Goyal        bool "/proc/vmcore support (EXPERIMENTAL)"
93505970d47SManeesh Soni        depends on PROC_FS && EXPERIMENTAL && CRASH_DUMP
93668250ba5SVivek Goyal	default y
937666bfddbSVivek Goyal        help
938666bfddbSVivek Goyal        Exports the dump image of crashed kernel in ELF format.
939666bfddbSVivek Goyal
940b89a8171SEric W. Biedermanconfig PROC_SYSCTL
941b89a8171SEric W. Biederman	bool "Sysctl support (/proc/sys)" if EMBEDDED
942b89a8171SEric W. Biederman	depends on PROC_FS
943b89a8171SEric W. Biederman	select SYSCTL
944b89a8171SEric W. Biederman	default y
945b89a8171SEric W. Biederman	---help---
946b89a8171SEric W. Biederman	  The sysctl interface provides a means of dynamically changing
947b89a8171SEric W. Biederman	  certain kernel parameters and variables on the fly without requiring
948b89a8171SEric W. Biederman	  a recompile of the kernel or reboot of the system.  The primary
949b89a8171SEric W. Biederman	  interface is through /proc/sys.  If you say Y here a tree of
950b89a8171SEric W. Biederman	  modifiable sysctl entries will be generated beneath the
951b89a8171SEric W. Biederman          /proc/sys directory. They are explained in the files
952b89a8171SEric W. Biederman	  in <file:Documentation/sysctl/>.  Note that enabling this
953b89a8171SEric W. Biederman	  option will enlarge the kernel by at least 8 KB.
954b89a8171SEric W. Biederman
955b89a8171SEric W. Biederman	  As it is generally a good thing, you should say Y here unless
956b89a8171SEric W. Biederman	  building a kernel for install/rescue disks or your system is very
957b89a8171SEric W. Biederman	  limited in memory.
958b89a8171SEric W. Biederman
9591da177e4SLinus Torvaldsconfig SYSFS
9601da177e4SLinus Torvalds	bool "sysfs file system support" if EMBEDDED
9611da177e4SLinus Torvalds	default y
9621da177e4SLinus Torvalds	help
9631da177e4SLinus Torvalds	The sysfs filesystem is a virtual filesystem that the kernel uses to
9641da177e4SLinus Torvalds	export internal kernel objects, their attributes, and their
9651da177e4SLinus Torvalds	relationships to one another.
9661da177e4SLinus Torvalds
9671da177e4SLinus Torvalds	Users can use sysfs to ascertain useful information about the running
9681da177e4SLinus Torvalds	kernel, such as the devices the kernel has discovered on each bus and
9691da177e4SLinus Torvalds	which driver each is bound to. sysfs can also be used to tune devices
9701da177e4SLinus Torvalds	and other kernel subsystems.
9711da177e4SLinus Torvalds
9721da177e4SLinus Torvalds	Some system agents rely on the information in sysfs to operate.
9731da177e4SLinus Torvalds	/sbin/hotplug uses device and object attributes in sysfs to assist in
97403a67a46SJan Engelhardt	delegating policy decisions, like persistently naming devices.
9751da177e4SLinus Torvalds
9761da177e4SLinus Torvalds	sysfs is currently used by the block subsystem to mount the root
9771da177e4SLinus Torvalds	partition.  If sysfs is disabled you must specify the boot device on
9781da177e4SLinus Torvalds	the kernel boot command line via its major and minor numbers.  For
9791da177e4SLinus Torvalds	example, "root=03:01" for /dev/hda1.
9801da177e4SLinus Torvalds
9811da177e4SLinus Torvalds	Designers of embedded systems may wish to say N here to conserve space.
9821da177e4SLinus Torvalds
9831da177e4SLinus Torvaldsconfig TMPFS
9841da177e4SLinus Torvalds	bool "Virtual memory file system support (former shm fs)"
9851da177e4SLinus Torvalds	help
9861da177e4SLinus Torvalds	  Tmpfs is a file system which keeps all files in virtual memory.
9871da177e4SLinus Torvalds
9881da177e4SLinus Torvalds	  Everything in tmpfs is temporary in the sense that no files will be
9891da177e4SLinus Torvalds	  created on your hard drive. The files live in memory and swap
9901da177e4SLinus Torvalds	  space. If you unmount a tmpfs instance, everything stored therein is
9911da177e4SLinus Torvalds	  lost.
9921da177e4SLinus Torvalds
9931da177e4SLinus Torvalds	  See <file:Documentation/filesystems/tmpfs.txt> for details.
9941da177e4SLinus Torvalds
99539f0247dSAndreas Gruenbacherconfig TMPFS_POSIX_ACL
99639f0247dSAndreas Gruenbacher	bool "Tmpfs POSIX Access Control Lists"
99739f0247dSAndreas Gruenbacher	depends on TMPFS
99839f0247dSAndreas Gruenbacher	select GENERIC_ACL
99939f0247dSAndreas Gruenbacher	help
100039f0247dSAndreas Gruenbacher	  POSIX Access Control Lists (ACLs) support permissions for users and
100139f0247dSAndreas Gruenbacher	  groups beyond the owner/group/world scheme.
100239f0247dSAndreas Gruenbacher
100339f0247dSAndreas Gruenbacher	  To learn more about Access Control Lists, visit the POSIX ACLs for
100439f0247dSAndreas Gruenbacher	  Linux website <http://acl.bestbits.at/>.
100539f0247dSAndreas Gruenbacher
100639f0247dSAndreas Gruenbacher	  If you don't know what Access Control Lists are, say N.
100739f0247dSAndreas Gruenbacher
10081da177e4SLinus Torvaldsconfig HUGETLBFS
10091da177e4SLinus Torvalds	bool "HugeTLB file system support"
1010dd950587SPaul Mundt	depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || BROKEN
1011dda27d1aSArthur Othieno	help
1012dda27d1aSArthur Othieno	  hugetlbfs is a filesystem backing for HugeTLB pages, based on
1013dda27d1aSArthur Othieno	  ramfs. For architectures that support it, say Y here and read
1014dda27d1aSArthur Othieno	  <file:Documentation/vm/hugetlbpage.txt> for details.
1015dda27d1aSArthur Othieno
1016dda27d1aSArthur Othieno	  If unsure, say N.
10171da177e4SLinus Torvalds
10181da177e4SLinus Torvaldsconfig HUGETLB_PAGE
10191da177e4SLinus Torvalds	def_bool HUGETLBFS
10201da177e4SLinus Torvalds
10217063fbf2SJoel Beckerconfig CONFIGFS_FS
10227063fbf2SJoel Becker	tristate "Userspace-driven configuration filesystem (EXPERIMENTAL)"
102365714b91SAdrian Bunk	depends on SYSFS && EXPERIMENTAL
10247063fbf2SJoel Becker	help
10257063fbf2SJoel Becker	  configfs is a ram-based filesystem that provides the converse
10267063fbf2SJoel Becker	  of sysfs's functionality. Where sysfs is a filesystem-based
10277063fbf2SJoel Becker	  view of kernel objects, configfs is a filesystem-based manager
10287063fbf2SJoel Becker	  of kernel objects, or config_items.
10297063fbf2SJoel Becker
10307063fbf2SJoel Becker	  Both sysfs and configfs can and should exist together on the
10317063fbf2SJoel Becker	  same system. One is not a replacement for the other.
10327063fbf2SJoel Becker
10331da177e4SLinus Torvaldsendmenu
10341da177e4SLinus Torvalds
10351da177e4SLinus Torvaldsmenu "Miscellaneous filesystems"
10361da177e4SLinus Torvalds
10371da177e4SLinus Torvaldsconfig ADFS_FS
10381da177e4SLinus Torvalds	tristate "ADFS file system support (EXPERIMENTAL)"
10399361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
10401da177e4SLinus Torvalds	help
10411da177e4SLinus Torvalds	  The Acorn Disc Filing System is the standard file system of the
10421da177e4SLinus Torvalds	  RiscOS operating system which runs on Acorn's ARM-based Risc PC
10431da177e4SLinus Torvalds	  systems and the Acorn Archimedes range of machines. If you say Y
10441da177e4SLinus Torvalds	  here, Linux will be able to read from ADFS partitions on hard drives
10451da177e4SLinus Torvalds	  and from ADFS-formatted floppy discs. If you also want to be able to
10461da177e4SLinus Torvalds	  write to those devices, say Y to "ADFS write support" below.
10471da177e4SLinus Torvalds
10481da177e4SLinus Torvalds	  The ADFS partition should be the first partition (i.e.,
10491da177e4SLinus Torvalds	  /dev/[hs]d?1) on each of your drives. Please read the file
10501da177e4SLinus Torvalds	  <file:Documentation/filesystems/adfs.txt> for further details.
10511da177e4SLinus Torvalds
10521da177e4SLinus Torvalds	  To compile this code as a module, choose M here: the module will be
10531da177e4SLinus Torvalds	  called adfs.
10541da177e4SLinus Torvalds
10551da177e4SLinus Torvalds	  If unsure, say N.
10561da177e4SLinus Torvalds
10571da177e4SLinus Torvaldsconfig ADFS_FS_RW
10581da177e4SLinus Torvalds	bool "ADFS write support (DANGEROUS)"
10591da177e4SLinus Torvalds	depends on ADFS_FS
10601da177e4SLinus Torvalds	help
10611da177e4SLinus Torvalds	  If you say Y here, you will be able to write to ADFS partitions on
10621da177e4SLinus Torvalds	  hard drives and ADFS-formatted floppy disks. This is experimental
10631da177e4SLinus Torvalds	  codes, so if you're unsure, say N.
10641da177e4SLinus Torvalds
10651da177e4SLinus Torvaldsconfig AFFS_FS
10661da177e4SLinus Torvalds	tristate "Amiga FFS file system support (EXPERIMENTAL)"
10679361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
10681da177e4SLinus Torvalds	help
10691da177e4SLinus Torvalds	  The Fast File System (FFS) is the common file system used on hard
10701da177e4SLinus Torvalds	  disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20).  Say Y
10711da177e4SLinus Torvalds	  if you want to be able to read and write files from and to an Amiga
10721da177e4SLinus Torvalds	  FFS partition on your hard drive.  Amiga floppies however cannot be
10731da177e4SLinus Torvalds	  read with this driver due to an incompatibility of the floppy
10741da177e4SLinus Torvalds	  controller used in an Amiga and the standard floppy controller in
10751da177e4SLinus Torvalds	  PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
10761da177e4SLinus Torvalds	  and <file:fs/affs/Changes>.
10771da177e4SLinus Torvalds
10781da177e4SLinus Torvalds	  With this driver you can also mount disk files used by Bernd
10791da177e4SLinus Torvalds	  Schmidt's Un*X Amiga Emulator
10801da177e4SLinus Torvalds	  (<http://www.freiburg.linux.de/~uae/>).
10811da177e4SLinus Torvalds	  If you want to do this, you will also need to say Y or M to "Loop
10821da177e4SLinus Torvalds	  device support", above.
10831da177e4SLinus Torvalds
10841da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
10851da177e4SLinus Torvalds	  module will be called affs.  If unsure, say N.
10861da177e4SLinus Torvalds
1087237fead6SMichael Halcrowconfig ECRYPT_FS
1088237fead6SMichael Halcrow	tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
108988b4a07eSMichael Halcrow	depends on EXPERIMENTAL && KEYS && CRYPTO && NET
1090237fead6SMichael Halcrow	help
1091237fead6SMichael Halcrow	  Encrypted filesystem that operates on the VFS layer.  See
1092237fead6SMichael Halcrow	  <file:Documentation/ecryptfs.txt> to learn more about
1093237fead6SMichael Halcrow	  eCryptfs.  Userspace components are required and can be
1094237fead6SMichael Halcrow	  obtained from <http://ecryptfs.sf.net>.
1095237fead6SMichael Halcrow
1096237fead6SMichael Halcrow	  To compile this file system support as a module, choose M here: the
1097237fead6SMichael Halcrow	  module will be called ecryptfs.
1098237fead6SMichael Halcrow
10991da177e4SLinus Torvaldsconfig HFS_FS
11001da177e4SLinus Torvalds	tristate "Apple Macintosh file system support (EXPERIMENTAL)"
11019361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
1102878129a3SLennert Buytenhek	select NLS
11031da177e4SLinus Torvalds	help
11041da177e4SLinus Torvalds	  If you say Y here, you will be able to mount Macintosh-formatted
11051da177e4SLinus Torvalds	  floppy disks and hard drive partitions with full read-write access.
11061da177e4SLinus Torvalds	  Please read <file:fs/hfs/HFS.txt> to learn about the available mount
11071da177e4SLinus Torvalds	  options.
11081da177e4SLinus Torvalds
11091da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
11101da177e4SLinus Torvalds	  module will be called hfs.
11111da177e4SLinus Torvalds
11121da177e4SLinus Torvaldsconfig HFSPLUS_FS
11131da177e4SLinus Torvalds	tristate "Apple Extended HFS file system support"
11149361401eSDavid Howells	depends on BLOCK
11151da177e4SLinus Torvalds	select NLS
11161da177e4SLinus Torvalds	select NLS_UTF8
11171da177e4SLinus Torvalds	help
11181da177e4SLinus Torvalds	  If you say Y here, you will be able to mount extended format
11191da177e4SLinus Torvalds	  Macintosh-formatted hard drive partitions with full read-write access.
11201da177e4SLinus Torvalds
11211da177e4SLinus Torvalds	  This file system is often called HFS+ and was introduced with
11221da177e4SLinus Torvalds	  MacOS 8. It includes all Mac specific filesystem data such as
11231da177e4SLinus Torvalds	  data forks and creator codes, but it also has several UNIX
11241da177e4SLinus Torvalds	  style features such as file ownership and permissions.
11251da177e4SLinus Torvalds
11261da177e4SLinus Torvaldsconfig BEFS_FS
11271da177e4SLinus Torvalds	tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
11289361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
11291da177e4SLinus Torvalds	select NLS
11301da177e4SLinus Torvalds	help
11311da177e4SLinus Torvalds	  The BeOS File System (BeFS) is the native file system of Be, Inc's
11321da177e4SLinus Torvalds	  BeOS. Notable features include support for arbitrary attributes
11333cb2fcccSMatt LaPlante	  on files and directories, and database-like indices on selected
11341da177e4SLinus Torvalds	  attributes. (Also note that this driver doesn't make those features
11351da177e4SLinus Torvalds	  available at this time). It is a 64 bit filesystem, so it supports
113644c09201SMatt LaPlante	  extremely large volumes and files.
11371da177e4SLinus Torvalds
11381da177e4SLinus Torvalds	  If you use this filesystem, you should also say Y to at least one
11391da177e4SLinus Torvalds	  of the NLS (native language support) options below.
11401da177e4SLinus Torvalds
11411da177e4SLinus Torvalds	  If you don't know what this is about, say N.
11421da177e4SLinus Torvalds
11431da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be
11441da177e4SLinus Torvalds	  called befs.
11451da177e4SLinus Torvalds
11461da177e4SLinus Torvaldsconfig BEFS_DEBUG
11471da177e4SLinus Torvalds	bool "Debug BeFS"
11481da177e4SLinus Torvalds	depends on BEFS_FS
11491da177e4SLinus Torvalds	help
11501da177e4SLinus Torvalds	  If you say Y here, you can use the 'debug' mount option to enable
11511da177e4SLinus Torvalds	  debugging output from the driver.
11521da177e4SLinus Torvalds
11531da177e4SLinus Torvaldsconfig BFS_FS
11541da177e4SLinus Torvalds	tristate "BFS file system support (EXPERIMENTAL)"
11559361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
11561da177e4SLinus Torvalds	help
11571da177e4SLinus Torvalds	  Boot File System (BFS) is a file system used under SCO UnixWare to
11581da177e4SLinus Torvalds	  allow the bootloader access to the kernel image and other important
11591da177e4SLinus Torvalds	  files during the boot process.  It is usually mounted under /stand
11601da177e4SLinus Torvalds	  and corresponds to the slice marked as "STAND" in the UnixWare
11611da177e4SLinus Torvalds	  partition.  You should say Y if you want to read or write the files
11621da177e4SLinus Torvalds	  on your /stand slice from within Linux.  You then also need to say Y
11631da177e4SLinus Torvalds	  to "UnixWare slices support", below.  More information about the BFS
11641da177e4SLinus Torvalds	  file system is contained in the file
11651da177e4SLinus Torvalds	  <file:Documentation/filesystems/bfs.txt>.
11661da177e4SLinus Torvalds
11671da177e4SLinus Torvalds	  If you don't know what this is about, say N.
11681da177e4SLinus Torvalds
11691da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
11701da177e4SLinus Torvalds	  bfs.  Note that the file system of your root partition (the one
11711da177e4SLinus Torvalds	  containing the directory /) cannot be compiled as a module.
11721da177e4SLinus Torvalds
11731da177e4SLinus Torvalds
11741da177e4SLinus Torvalds
11751da177e4SLinus Torvaldsconfig EFS_FS
11761da177e4SLinus Torvalds	tristate "EFS file system support (read only) (EXPERIMENTAL)"
11779361401eSDavid Howells	depends on BLOCK && EXPERIMENTAL
11781da177e4SLinus Torvalds	help
11791da177e4SLinus Torvalds	  EFS is an older file system used for non-ISO9660 CD-ROMs and hard
11801da177e4SLinus Torvalds	  disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
11811da177e4SLinus Torvalds	  uses the XFS file system for hard disk partitions however).
11821da177e4SLinus Torvalds
11831da177e4SLinus Torvalds	  This implementation only offers read-only access. If you don't know
11841da177e4SLinus Torvalds	  what all this is about, it's safe to say N. For more information
11851da177e4SLinus Torvalds	  about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
11861da177e4SLinus Torvalds
11871da177e4SLinus Torvalds	  To compile the EFS file system support as a module, choose M here: the
11881da177e4SLinus Torvalds	  module will be called efs.
11891da177e4SLinus Torvalds
11901da177e4SLinus Torvaldsconfig JFFS2_FS
11911da177e4SLinus Torvalds	tristate "Journalling Flash File System v2 (JFFS2) support"
11921da177e4SLinus Torvalds	select CRC32
11931da177e4SLinus Torvalds	depends on MTD
11941da177e4SLinus Torvalds	help
11951da177e4SLinus Torvalds	  JFFS2 is the second generation of the Journalling Flash File System
11961da177e4SLinus Torvalds	  for use on diskless embedded devices. It provides improved wear
11971da177e4SLinus Torvalds	  levelling, compression and support for hard links. You cannot use
11981da177e4SLinus Torvalds	  this on normal block devices, only on 'MTD' devices.
11991da177e4SLinus Torvalds
12001da177e4SLinus Torvalds	  Further information on the design and implementation of JFFS2 is
12011da177e4SLinus Torvalds	  available at <http://sources.redhat.com/jffs2/>.
12021da177e4SLinus Torvalds
12031da177e4SLinus Torvaldsconfig JFFS2_FS_DEBUG
12041da177e4SLinus Torvalds	int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
12051da177e4SLinus Torvalds	depends on JFFS2_FS
12061da177e4SLinus Torvalds	default "0"
12071da177e4SLinus Torvalds	help
12081da177e4SLinus Torvalds	  This controls the amount of debugging messages produced by the JFFS2
12091da177e4SLinus Torvalds	  code. Set it to zero for use in production systems. For evaluation,
12101da177e4SLinus Torvalds	  testing and debugging, it's advisable to set it to one. This will
12111da177e4SLinus Torvalds	  enable a few assertions and will print debugging messages at the
12121da177e4SLinus Torvalds	  KERN_DEBUG loglevel, where they won't normally be visible. Level 2
12131da177e4SLinus Torvalds	  is unlikely to be useful - it enables extra debugging in certain
12141da177e4SLinus Torvalds	  areas which at one point needed debugging, but when the bugs were
12151da177e4SLinus Torvalds	  located and fixed, the detailed messages were relegated to level 2.
12161da177e4SLinus Torvalds
12171da177e4SLinus Torvalds	  If reporting bugs, please try to have available a full dump of the
12181da177e4SLinus Torvalds	  messages at debug level 1 while the misbehaviour was occurring.
12191da177e4SLinus Torvalds
12202ba72cb7SDavid Woodhouseconfig JFFS2_FS_WRITEBUFFER
12212ba72cb7SDavid Woodhouse	bool "JFFS2 write-buffering support"
1222aa98d7cfSKaiGai Kohei	depends on JFFS2_FS
12232ba72cb7SDavid Woodhouse	default y
12242ba72cb7SDavid Woodhouse	help
12252ba72cb7SDavid Woodhouse	  This enables the write-buffering support in JFFS2.
12262ba72cb7SDavid Woodhouse
12272ba72cb7SDavid Woodhouse	  This functionality is required to support JFFS2 on the following
12282ba72cb7SDavid Woodhouse	  types of flash devices:
12292ba72cb7SDavid Woodhouse	    - NAND flash
12302ba72cb7SDavid Woodhouse	    - NOR flash with transparent ECC
12312ba72cb7SDavid Woodhouse	    - DataFlash
12322ba72cb7SDavid Woodhouse
1233a6bc432eSDavid Woodhouseconfig JFFS2_FS_WBUF_VERIFY
1234a6bc432eSDavid Woodhouse	bool "Verify JFFS2 write-buffer reads"
1235a6bc432eSDavid Woodhouse	depends on JFFS2_FS_WRITEBUFFER
1236a6bc432eSDavid Woodhouse	default n
1237a6bc432eSDavid Woodhouse	help
1238a6bc432eSDavid Woodhouse	  This causes JFFS2 to read back every page written through the
1239a6bc432eSDavid Woodhouse	  write-buffer, and check for errors.
1240a6bc432eSDavid Woodhouse
12412ba72cb7SDavid Woodhouseconfig JFFS2_SUMMARY
12422ba72cb7SDavid Woodhouse	bool "JFFS2 summary support (EXPERIMENTAL)"
12432ba72cb7SDavid Woodhouse	depends on JFFS2_FS && EXPERIMENTAL
12442ba72cb7SDavid Woodhouse	default n
12452ba72cb7SDavid Woodhouse	help
12462ba72cb7SDavid Woodhouse	  This feature makes it possible to use summary information
12472ba72cb7SDavid Woodhouse	  for faster filesystem mount.
12482ba72cb7SDavid Woodhouse
12492ba72cb7SDavid Woodhouse	  The summary information can be inserted into a filesystem image
12502ba72cb7SDavid Woodhouse	  by the utility 'sumtool'.
12512ba72cb7SDavid Woodhouse
12522ba72cb7SDavid Woodhouse	  If unsure, say 'N'.
12532ba72cb7SDavid Woodhouse
12542ba72cb7SDavid Woodhouseconfig JFFS2_FS_XATTR
12552ba72cb7SDavid Woodhouse	bool "JFFS2 XATTR support (EXPERIMENTAL)"
125604510deeSKaiGai Kohei	depends on JFFS2_FS && EXPERIMENTAL
1257aa98d7cfSKaiGai Kohei	default n
1258aa98d7cfSKaiGai Kohei	help
1259aa98d7cfSKaiGai Kohei	  Extended attributes are name:value pairs associated with inodes by
1260aa98d7cfSKaiGai Kohei	  the kernel or by users (see the attr(5) manual page, or visit
1261aa98d7cfSKaiGai Kohei	  <http://acl.bestbits.at/> for details).
1262aa98d7cfSKaiGai Kohei
1263aa98d7cfSKaiGai Kohei	  If unsure, say N.
1264aa98d7cfSKaiGai Kohei
1265aa98d7cfSKaiGai Koheiconfig JFFS2_FS_POSIX_ACL
1266aa98d7cfSKaiGai Kohei	bool "JFFS2 POSIX Access Control Lists"
1267aa98d7cfSKaiGai Kohei	depends on JFFS2_FS_XATTR
1268aa98d7cfSKaiGai Kohei	default y
1269aa98d7cfSKaiGai Kohei	select FS_POSIX_ACL
1270aa98d7cfSKaiGai Kohei	help
1271aa98d7cfSKaiGai Kohei	  Posix Access Control Lists (ACLs) support permissions for users and
1272aa98d7cfSKaiGai Kohei	  groups beyond the owner/group/world scheme.
1273aa98d7cfSKaiGai Kohei
1274aa98d7cfSKaiGai Kohei	  To learn more about Access Control Lists, visit the Posix ACLs for
1275aa98d7cfSKaiGai Kohei	  Linux website <http://acl.bestbits.at/>.
1276aa98d7cfSKaiGai Kohei
1277aa98d7cfSKaiGai Kohei	  If you don't know what Access Control Lists are, say N
1278aa98d7cfSKaiGai Kohei
1279aa98d7cfSKaiGai Koheiconfig JFFS2_FS_SECURITY
1280aa98d7cfSKaiGai Kohei	bool "JFFS2 Security Labels"
1281aa98d7cfSKaiGai Kohei	depends on JFFS2_FS_XATTR
1282aa98d7cfSKaiGai Kohei	default y
1283aa98d7cfSKaiGai Kohei	help
1284aa98d7cfSKaiGai Kohei	  Security labels support alternative access control models
1285aa98d7cfSKaiGai Kohei	  implemented by security modules like SELinux.  This option
1286aa98d7cfSKaiGai Kohei	  enables an extended attribute handler for file security
1287aa98d7cfSKaiGai Kohei	  labels in the jffs2 filesystem.
1288aa98d7cfSKaiGai Kohei
1289aa98d7cfSKaiGai Kohei	  If you are not using a security module that requires using
1290aa98d7cfSKaiGai Kohei	  extended attributes for file security labels, say N.
1291aa98d7cfSKaiGai Kohei
12921da177e4SLinus Torvaldsconfig JFFS2_COMPRESSION_OPTIONS
12931da177e4SLinus Torvalds	bool "Advanced compression options for JFFS2"
12941da177e4SLinus Torvalds	depends on JFFS2_FS
12951da177e4SLinus Torvalds	default n
12961da177e4SLinus Torvalds	help
12971da177e4SLinus Torvalds	  Enabling this option allows you to explicitly choose which
12981da177e4SLinus Torvalds	  compression modules, if any, are enabled in JFFS2. Removing
12991da177e4SLinus Torvalds	  compressors and mean you cannot read existing file systems,
13001da177e4SLinus Torvalds	  and enabling experimental compressors can mean that you
13011da177e4SLinus Torvalds	  write a file system which cannot be read by a standard kernel.
13021da177e4SLinus Torvalds
13031da177e4SLinus Torvalds	  If unsure, you should _definitely_ say 'N'.
13041da177e4SLinus Torvalds
13051da177e4SLinus Torvaldsconfig JFFS2_ZLIB
13061da177e4SLinus Torvalds	bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS
13071da177e4SLinus Torvalds	select ZLIB_INFLATE
13081da177e4SLinus Torvalds	select ZLIB_DEFLATE
13091da177e4SLinus Torvalds	depends on JFFS2_FS
13101da177e4SLinus Torvalds	default y
13111da177e4SLinus Torvalds	help
13121da177e4SLinus Torvalds	  Zlib is designed to be a free, general-purpose, legally unencumbered,
13131da177e4SLinus Torvalds	  lossless data-compression library for use on virtually any computer
13141da177e4SLinus Torvalds	  hardware and operating system. See <http://www.gzip.org/zlib/> for
13151da177e4SLinus Torvalds	  further information.
13161da177e4SLinus Torvalds
13171da177e4SLinus Torvalds	  Say 'Y' if unsure.
13181da177e4SLinus Torvalds
1319c799aca3SRichard Purdieconfig JFFS2_LZO
1320c799aca3SRichard Purdie	bool "JFFS2 LZO compression support" if JFFS2_COMPRESSION_OPTIONS
1321c799aca3SRichard Purdie	select LZO_COMPRESS
1322c799aca3SRichard Purdie	select LZO_DECOMPRESS
1323c799aca3SRichard Purdie	depends on JFFS2_FS
13243ca135e1SDavid Woodhouse	default n
1325c799aca3SRichard Purdie	help
1326c799aca3SRichard Purdie	  minilzo-based compression. Generally works better than Zlib.
1327c799aca3SRichard Purdie
13283ca135e1SDavid Woodhouse	  This feature was added in July, 2007. Say 'N' if you need
13293ca135e1SDavid Woodhouse	  compatibility with older bootloaders or kernels.
1330c799aca3SRichard Purdie
13311da177e4SLinus Torvaldsconfig JFFS2_RTIME
13321da177e4SLinus Torvalds	bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
13331da177e4SLinus Torvalds	depends on JFFS2_FS
13341da177e4SLinus Torvalds	default y
13351da177e4SLinus Torvalds	help
13361da177e4SLinus Torvalds	  Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
13371da177e4SLinus Torvalds
13381da177e4SLinus Torvaldsconfig JFFS2_RUBIN
13391da177e4SLinus Torvalds	bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
13401da177e4SLinus Torvalds	depends on JFFS2_FS
13411da177e4SLinus Torvalds	default n
13421da177e4SLinus Torvalds	help
13431da177e4SLinus Torvalds	  RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
13441da177e4SLinus Torvalds
13451da177e4SLinus Torvaldschoice
13461da177e4SLinus Torvalds	prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
13471da177e4SLinus Torvalds	default JFFS2_CMODE_PRIORITY
13481da177e4SLinus Torvalds	depends on JFFS2_FS
13491da177e4SLinus Torvalds	help
13501da177e4SLinus Torvalds	  You can set here the default compression mode of JFFS2 from
13511da177e4SLinus Torvalds	  the available compression modes. Don't touch if unsure.
13521da177e4SLinus Torvalds
13531da177e4SLinus Torvaldsconfig JFFS2_CMODE_NONE
13541da177e4SLinus Torvalds	bool "no compression"
13551da177e4SLinus Torvalds	help
13561da177e4SLinus Torvalds	  Uses no compression.
13571da177e4SLinus Torvalds
13581da177e4SLinus Torvaldsconfig JFFS2_CMODE_PRIORITY
13591da177e4SLinus Torvalds	bool "priority"
13601da177e4SLinus Torvalds	help
1361cc2e2767SMatt LaPlante	  Tries the compressors in a predefined order and chooses the first
13621da177e4SLinus Torvalds	  successful one.
13631da177e4SLinus Torvalds
13641da177e4SLinus Torvaldsconfig JFFS2_CMODE_SIZE
13651da177e4SLinus Torvalds	bool "size (EXPERIMENTAL)"
13661da177e4SLinus Torvalds	help
13671da177e4SLinus Torvalds	  Tries all compressors and chooses the one which has the smallest
13681da177e4SLinus Torvalds	  result.
13691da177e4SLinus Torvalds
13703b23c1f5SRichard Purdieconfig JFFS2_CMODE_FAVOURLZO
13713b23c1f5SRichard Purdie	bool "Favour LZO"
13723b23c1f5SRichard Purdie	help
13733b23c1f5SRichard Purdie	  Tries all compressors and chooses the one which has the smallest
13743b23c1f5SRichard Purdie	  result but gives some preference to LZO (which has faster
13753b23c1f5SRichard Purdie	  decompression) at the expense of size.
13763b23c1f5SRichard Purdie
13771da177e4SLinus Torvaldsendchoice
13781da177e4SLinus Torvalds
13791da177e4SLinus Torvaldsconfig CRAMFS
13801da177e4SLinus Torvalds	tristate "Compressed ROM file system support (cramfs)"
13819361401eSDavid Howells	depends on BLOCK
13821da177e4SLinus Torvalds	select ZLIB_INFLATE
13831da177e4SLinus Torvalds	help
13841da177e4SLinus Torvalds	  Saying Y here includes support for CramFs (Compressed ROM File
13851da177e4SLinus Torvalds	  System).  CramFs is designed to be a simple, small, and compressed
13861da177e4SLinus Torvalds	  file system for ROM based embedded systems.  CramFs is read-only,
13871da177e4SLinus Torvalds	  limited to 256MB file systems (with 16MB files), and doesn't support
13881da177e4SLinus Torvalds	  16/32 bits uid/gid, hard links and timestamps.
13891da177e4SLinus Torvalds
13901da177e4SLinus Torvalds	  See <file:Documentation/filesystems/cramfs.txt> and
13911da177e4SLinus Torvalds	  <file:fs/cramfs/README> for further information.
13921da177e4SLinus Torvalds
13931da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
13941da177e4SLinus Torvalds	  cramfs.  Note that the root file system (the one containing the
13951da177e4SLinus Torvalds	  directory /) cannot be compiled as a module.
13961da177e4SLinus Torvalds
13971da177e4SLinus Torvalds	  If unsure, say N.
13981da177e4SLinus Torvalds
13991da177e4SLinus Torvaldsconfig VXFS_FS
14001da177e4SLinus Torvalds	tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
14019361401eSDavid Howells	depends on BLOCK
14021da177e4SLinus Torvalds	help
14031da177e4SLinus Torvalds	  FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
14041da177e4SLinus Torvalds	  file system format.  VERITAS VxFS(TM) is the standard file system
14051da177e4SLinus Torvalds	  of SCO UnixWare (and possibly others) and optionally available
14061da177e4SLinus Torvalds	  for Sunsoft Solaris, HP-UX and many other operating systems.
14071da177e4SLinus Torvalds	  Currently only readonly access is supported.
14081da177e4SLinus Torvalds
14091da177e4SLinus Torvalds	  NOTE: the file system type as used by mount(1), mount(2) and
14101da177e4SLinus Torvalds	  fstab(5) is 'vxfs' as it describes the file system format, not
14111da177e4SLinus Torvalds	  the actual driver.
14121da177e4SLinus Torvalds
14131da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be
14141da177e4SLinus Torvalds	  called freevxfs.  If unsure, say N.
14151da177e4SLinus Torvalds
14161da177e4SLinus Torvalds
14171da177e4SLinus Torvaldsconfig HPFS_FS
14181da177e4SLinus Torvalds	tristate "OS/2 HPFS file system support"
14199361401eSDavid Howells	depends on BLOCK
14201da177e4SLinus Torvalds	help
14211da177e4SLinus Torvalds	  OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
14221da177e4SLinus Torvalds	  is the file system used for organizing files on OS/2 hard disk
14231da177e4SLinus Torvalds	  partitions. Say Y if you want to be able to read files from and
14241da177e4SLinus Torvalds	  write files to an OS/2 HPFS partition on your hard drive. OS/2
14251da177e4SLinus Torvalds	  floppies however are in regular MSDOS format, so you don't need this
14261da177e4SLinus Torvalds	  option in order to be able to read them. Read
14271da177e4SLinus Torvalds	  <file:Documentation/filesystems/hpfs.txt>.
14281da177e4SLinus Torvalds
14291da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
14301da177e4SLinus Torvalds	  module will be called hpfs.  If unsure, say N.
14311da177e4SLinus Torvalds
14321da177e4SLinus Torvalds
14331da177e4SLinus Torvalds
14341da177e4SLinus Torvaldsconfig QNX4FS_FS
14351da177e4SLinus Torvalds	tristate "QNX4 file system support (read only)"
14369361401eSDavid Howells	depends on BLOCK
14371da177e4SLinus Torvalds	help
14381da177e4SLinus Torvalds	  This is the file system used by the real-time operating systems
14391da177e4SLinus Torvalds	  QNX 4 and QNX 6 (the latter is also called QNX RTP).
14401da177e4SLinus Torvalds	  Further information is available at <http://www.qnx.com/>.
14411da177e4SLinus Torvalds	  Say Y if you intend to mount QNX hard disks or floppies.
14421da177e4SLinus Torvalds	  Unless you say Y to "QNX4FS read-write support" below, you will
14431da177e4SLinus Torvalds	  only be able to read these file systems.
14441da177e4SLinus Torvalds
14451da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
14461da177e4SLinus Torvalds	  module will be called qnx4.
14471da177e4SLinus Torvalds
14481da177e4SLinus Torvalds	  If you don't know whether you need it, then you don't need it:
14491da177e4SLinus Torvalds	  answer N.
14501da177e4SLinus Torvalds
14511da177e4SLinus Torvaldsconfig QNX4FS_RW
14521da177e4SLinus Torvalds	bool "QNX4FS write support (DANGEROUS)"
14531da177e4SLinus Torvalds	depends on QNX4FS_FS && EXPERIMENTAL && BROKEN
14541da177e4SLinus Torvalds	help
14551da177e4SLinus Torvalds	  Say Y if you want to test write support for QNX4 file systems.
14561da177e4SLinus Torvalds
14571da177e4SLinus Torvalds	  It's currently broken, so for now:
14581da177e4SLinus Torvalds	  answer N.
14591da177e4SLinus Torvalds
14601da177e4SLinus Torvalds
14611da177e4SLinus Torvalds
14621da177e4SLinus Torvaldsconfig SYSV_FS
14631da177e4SLinus Torvalds	tristate "System V/Xenix/V7/Coherent file system support"
14649361401eSDavid Howells	depends on BLOCK
14651da177e4SLinus Torvalds	help
14661da177e4SLinus Torvalds	  SCO, Xenix and Coherent are commercial Unix systems for Intel
14671da177e4SLinus Torvalds	  machines, and Version 7 was used on the DEC PDP-11. Saying Y
14681da177e4SLinus Torvalds	  here would allow you to read from their floppies and hard disk
14691da177e4SLinus Torvalds	  partitions.
14701da177e4SLinus Torvalds
14711da177e4SLinus Torvalds	  If you have floppies or hard disk partitions like that, it is likely
14721da177e4SLinus Torvalds	  that they contain binaries from those other Unix systems; in order
1473cab00891SMatt LaPlante	  to run these binaries, you will want to install linux-abi which is
14741da177e4SLinus Torvalds	  a set of kernel modules that lets you run SCO, Xenix, Wyse,
14751da177e4SLinus Torvalds	  UnixWare, Dell Unix and System V programs under Linux.  It is
14761da177e4SLinus Torvalds	  available via FTP (user: ftp) from
14771da177e4SLinus Torvalds	  <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
14781da177e4SLinus Torvalds	  NOTE: that will work only for binaries from Intel-based systems;
14791da177e4SLinus Torvalds	  PDP ones will have to wait until somebody ports Linux to -11 ;-)
14801da177e4SLinus Torvalds
14811da177e4SLinus Torvalds	  If you only intend to mount files from some other Unix over the
14821da177e4SLinus Torvalds	  network using NFS, you don't need the System V file system support
14831da177e4SLinus Torvalds	  (but you need NFS file system support obviously).
14841da177e4SLinus Torvalds
14851da177e4SLinus Torvalds	  Note that this option is generally not needed for floppies, since a
14861da177e4SLinus Torvalds	  good portable way to transport files and directories between unixes
14871da177e4SLinus Torvalds	  (and even other operating systems) is given by the tar program ("man
14881da177e4SLinus Torvalds	  tar" or preferably "info tar").  Note also that this option has
14891da177e4SLinus Torvalds	  nothing whatsoever to do with the option "System V IPC". Read about
14901da177e4SLinus Torvalds	  the System V file system in
14911da177e4SLinus Torvalds	  <file:Documentation/filesystems/sysv-fs.txt>.
14921da177e4SLinus Torvalds	  Saying Y here will enlarge your kernel by about 27 KB.
14931da177e4SLinus Torvalds
14941da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
14951da177e4SLinus Torvalds	  sysv.
14961da177e4SLinus Torvalds
14971da177e4SLinus Torvalds	  If you haven't heard about all of this before, it's safe to say N.
14981da177e4SLinus Torvalds
14991da177e4SLinus Torvalds
15001da177e4SLinus Torvalds
15011da177e4SLinus Torvaldsconfig UFS_FS
15021da177e4SLinus Torvalds	tristate "UFS file system support (read only)"
15039361401eSDavid Howells	depends on BLOCK
15041da177e4SLinus Torvalds	help
15051da177e4SLinus Torvalds	  BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
15061da177e4SLinus Torvalds	  OpenBSD and NeXTstep) use a file system called UFS. Some System V
15071da177e4SLinus Torvalds	  Unixes can create and mount hard disk partitions and diskettes using
15081da177e4SLinus Torvalds	  this file system as well. Saying Y here will allow you to read from
15091da177e4SLinus Torvalds	  these partitions; if you also want to write to them, say Y to the
15101da177e4SLinus Torvalds	  experimental "UFS file system write support", below. Please read the
15111da177e4SLinus Torvalds	  file <file:Documentation/filesystems/ufs.txt> for more information.
15121da177e4SLinus Torvalds
15131da177e4SLinus Torvalds          The recently released UFS2 variant (used in FreeBSD 5.x) is
15141da177e4SLinus Torvalds          READ-ONLY supported.
15151da177e4SLinus Torvalds
15161da177e4SLinus Torvalds	  If you only intend to mount files from some other Unix over the
15171da177e4SLinus Torvalds	  network using NFS, you don't need the UFS file system support (but
15181da177e4SLinus Torvalds	  you need NFS file system support obviously).
15191da177e4SLinus Torvalds
15201da177e4SLinus Torvalds	  Note that this option is generally not needed for floppies, since a
15211da177e4SLinus Torvalds	  good portable way to transport files and directories between unixes
15221da177e4SLinus Torvalds	  (and even other operating systems) is given by the tar program ("man
15231da177e4SLinus Torvalds	  tar" or preferably "info tar").
15241da177e4SLinus Torvalds
15251da177e4SLinus Torvalds	  When accessing NeXTstep files, you may need to convert them from the
15261da177e4SLinus Torvalds	  NeXT character set to the Latin1 character set; use the program
15271da177e4SLinus Torvalds	  recode ("info recode") for this purpose.
15281da177e4SLinus Torvalds
15291da177e4SLinus Torvalds	  To compile the UFS file system support as a module, choose M here: the
15301da177e4SLinus Torvalds	  module will be called ufs.
15311da177e4SLinus Torvalds
15321da177e4SLinus Torvalds	  If you haven't heard about all of this before, it's safe to say N.
15331da177e4SLinus Torvalds
15341da177e4SLinus Torvaldsconfig UFS_FS_WRITE
15351da177e4SLinus Torvalds	bool "UFS file system write support (DANGEROUS)"
15365afb3145SEvgeniy Dushistov	depends on UFS_FS && EXPERIMENTAL
15371da177e4SLinus Torvalds	help
15381da177e4SLinus Torvalds	  Say Y here if you want to try writing to UFS partitions. This is
15391da177e4SLinus Torvalds	  experimental, so you should back up your UFS partitions beforehand.
15401da177e4SLinus Torvalds
1541abf5d15fSEvgeniy Dushistovconfig UFS_DEBUG
1542abf5d15fSEvgeniy Dushistov	bool "UFS debugging"
1543abf5d15fSEvgeniy Dushistov	depends on UFS_FS
1544abf5d15fSEvgeniy Dushistov	help
1545abf5d15fSEvgeniy Dushistov	  If you are experiencing any problems with the UFS filesystem, say
1546abf5d15fSEvgeniy Dushistov	  Y here.  This will result in _many_ additional debugging messages to be
1547abf5d15fSEvgeniy Dushistov	  written to the system log.
1548abf5d15fSEvgeniy Dushistov
15491da177e4SLinus Torvaldsendmenu
15501da177e4SLinus Torvalds
1551ea0985adSJan Engelhardtmenuconfig NETWORK_FILESYSTEMS
1552ea0985adSJan Engelhardt	bool "Network File Systems"
1553ea0985adSJan Engelhardt	default y
15541da177e4SLinus Torvalds	depends on NET
1555ea0985adSJan Engelhardt	---help---
1556ea0985adSJan Engelhardt	  Say Y here to get to see options for network filesystems and
1557ea0985adSJan Engelhardt	  filesystem-related networking code, such as NFS daemon and
1558ea0985adSJan Engelhardt	  RPCSEC security modules.
1559ea0985adSJan Engelhardt	  This option alone does not add any kernel code.
1560ea0985adSJan Engelhardt
1561ea0985adSJan Engelhardt	  If you say N, all options in this submenu will be skipped and
1562ea0985adSJan Engelhardt	  disabled; if unsure, say Y here.
1563ea0985adSJan Engelhardt
1564ea0985adSJan Engelhardtif NETWORK_FILESYSTEMS
15651da177e4SLinus Torvalds
15661da177e4SLinus Torvaldsconfig NFS_FS
15671da177e4SLinus Torvalds	tristate "NFS file system support"
15681da177e4SLinus Torvalds	depends on INET
15691da177e4SLinus Torvalds	select LOCKD
15701da177e4SLinus Torvalds	select SUNRPC
1571b7fa0554SAndreas Gruenbacher	select NFS_ACL_SUPPORT if NFS_V3_ACL
15721da177e4SLinus Torvalds	help
15731da177e4SLinus Torvalds	  If you are connected to some other (usually local) Unix computer
15741da177e4SLinus Torvalds	  (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
15751da177e4SLinus Torvalds	  on that computer (the NFS server) using the Network File Sharing
15761da177e4SLinus Torvalds	  protocol, say Y. "Mounting files" means that the client can access
15771da177e4SLinus Torvalds	  the files with usual UNIX commands as if they were sitting on the
15781da177e4SLinus Torvalds	  client's hard disk. For this to work, the server must run the
15791da177e4SLinus Torvalds	  programs nfsd and mountd (but does not need to have NFS file system
15801da177e4SLinus Torvalds	  support enabled in its kernel). NFS is explained in the Network
15811da177e4SLinus Torvalds	  Administrator's Guide, available from
15821da177e4SLinus Torvalds	  <http://www.tldp.org/docs.html#guide>, on its man page: "man
15831da177e4SLinus Torvalds	  nfs", and in the NFS-HOWTO.
15841da177e4SLinus Torvalds
15851da177e4SLinus Torvalds	  A superior but less widely used alternative to NFS is provided by
15861da177e4SLinus Torvalds	  the Coda file system; see "Coda file system support" below.
15871da177e4SLinus Torvalds
15881da177e4SLinus Torvalds	  If you say Y here, you should have said Y to TCP/IP networking also.
15891da177e4SLinus Torvalds	  This option would enlarge your kernel by about 27 KB.
15901da177e4SLinus Torvalds
15911da177e4SLinus Torvalds	  To compile this file system support as a module, choose M here: the
15921da177e4SLinus Torvalds	  module will be called nfs.
15931da177e4SLinus Torvalds
15941da177e4SLinus Torvalds	  If you are configuring a diskless machine which will mount its root
15951da177e4SLinus Torvalds	  file system over NFS at boot time, say Y here and to "Kernel
15961da177e4SLinus Torvalds	  level IP autoconfiguration" above and to "Root file system on NFS"
15971da177e4SLinus Torvalds	  below. You cannot compile this driver as a module in this case.
15981da177e4SLinus Torvalds	  There are two packages designed for booting diskless machines over
15991da177e4SLinus Torvalds	  the net: netboot, available from
16001da177e4SLinus Torvalds	  <http://ftp1.sourceforge.net/netboot/>, and Etherboot,
16011da177e4SLinus Torvalds	  available from <http://ftp1.sourceforge.net/etherboot/>.
16021da177e4SLinus Torvalds
16031da177e4SLinus Torvalds	  If you don't know what all this is about, say N.
16041da177e4SLinus Torvalds
16051da177e4SLinus Torvaldsconfig NFS_V3
16061da177e4SLinus Torvalds	bool "Provide NFSv3 client support"
16071da177e4SLinus Torvalds	depends on NFS_FS
16081da177e4SLinus Torvalds	help
16091da177e4SLinus Torvalds	  Say Y here if you want your NFS client to be able to speak version
16101da177e4SLinus Torvalds	  3 of the NFS protocol.
16111da177e4SLinus Torvalds
16121da177e4SLinus Torvalds	  If unsure, say Y.
16131da177e4SLinus Torvalds
1614b7fa0554SAndreas Gruenbacherconfig NFS_V3_ACL
1615b7fa0554SAndreas Gruenbacher	bool "Provide client support for the NFSv3 ACL protocol extension"
1616b7fa0554SAndreas Gruenbacher	depends on NFS_V3
1617b7fa0554SAndreas Gruenbacher	help
1618b7fa0554SAndreas Gruenbacher	  Implement the NFSv3 ACL protocol extension for manipulating POSIX
1619b7fa0554SAndreas Gruenbacher	  Access Control Lists.  The server should also be compiled with
1620b7fa0554SAndreas Gruenbacher	  the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option.
1621b7fa0554SAndreas Gruenbacher
1622b7fa0554SAndreas Gruenbacher	  If unsure, say N.
1623b7fa0554SAndreas Gruenbacher
16241da177e4SLinus Torvaldsconfig NFS_V4
16251da177e4SLinus Torvalds	bool "Provide NFSv4 client support (EXPERIMENTAL)"
16261da177e4SLinus Torvalds	depends on NFS_FS && EXPERIMENTAL
16271da177e4SLinus Torvalds	select RPCSEC_GSS_KRB5
16281da177e4SLinus Torvalds	help
16291da177e4SLinus Torvalds	  Say Y here if you want your NFS client to be able to speak the newer
16301da177e4SLinus Torvalds	  version 4 of the NFS protocol.
16311da177e4SLinus Torvalds
16321da177e4SLinus Torvalds	  Note: Requires auxiliary userspace daemons which may be found on
16331da177e4SLinus Torvalds		http://www.citi.umich.edu/projects/nfsv4/
16341da177e4SLinus Torvalds
16351da177e4SLinus Torvalds	  If unsure, say N.
16361da177e4SLinus Torvalds
16371da177e4SLinus Torvaldsconfig NFS_DIRECTIO
1638026ed5c9SChuck Lever	bool "Allow direct I/O on NFS files"
1639026ed5c9SChuck Lever	depends on NFS_FS
16401da177e4SLinus Torvalds	help
16411da177e4SLinus Torvalds	  This option enables applications to perform uncached I/O on files
16421da177e4SLinus Torvalds	  in NFS file systems using the O_DIRECT open() flag.  When O_DIRECT
16431da177e4SLinus Torvalds	  is set for a file, its data is not cached in the system's page
16441da177e4SLinus Torvalds	  cache.  Data is moved to and from user-level application buffers
16451da177e4SLinus Torvalds	  directly.  Unlike local disk-based file systems, NFS O_DIRECT has
16461da177e4SLinus Torvalds	  no alignment restrictions.
16471da177e4SLinus Torvalds
16481da177e4SLinus Torvalds	  Unless your program is designed to use O_DIRECT properly, you are
16491da177e4SLinus Torvalds	  much better off allowing the NFS client to manage data caching for
16501da177e4SLinus Torvalds	  you.  Misusing O_DIRECT can cause poor server performance or network
16511da177e4SLinus Torvalds	  storms.  This kernel build option defaults OFF to avoid exposing
16521da177e4SLinus Torvalds	  system administrators unwittingly to a potentially hazardous
16531da177e4SLinus Torvalds	  feature.
16541da177e4SLinus Torvalds
16551da177e4SLinus Torvalds	  For more details on NFS O_DIRECT, see fs/nfs/direct.c.
16561da177e4SLinus Torvalds
16571da177e4SLinus Torvalds	  If unsure, say N.  This reduces the size of the NFS client, and
16581da177e4SLinus Torvalds	  causes open() to return EINVAL if a file residing in NFS is
16591da177e4SLinus Torvalds	  opened with the O_DIRECT flag.
16601da177e4SLinus Torvalds
16611da177e4SLinus Torvaldsconfig NFSD
16621da177e4SLinus Torvalds	tristate "NFS server support"
16631da177e4SLinus Torvalds	depends on INET
16641da177e4SLinus Torvalds	select LOCKD
16651da177e4SLinus Torvalds	select SUNRPC
16661da177e4SLinus Torvalds	select EXPORTFS
1667f05e15b5SHerbert Xu	select NFSD_V2_ACL if NFSD_V3_ACL
1668f05e15b5SHerbert Xu	select NFS_ACL_SUPPORT if NFSD_V2_ACL
1669f05e15b5SHerbert Xu	select NFSD_TCP if NFSD_V4
1670f05e15b5SHerbert Xu	select CRYPTO_MD5 if NFSD_V4
1671f05e15b5SHerbert Xu	select CRYPTO if NFSD_V4
1672f05e15b5SHerbert Xu	select FS_POSIX_ACL if NFSD_V4
16731da177e4SLinus Torvalds	help
16741da177e4SLinus Torvalds	  If you want your Linux box to act as an NFS *server*, so that other
16751da177e4SLinus Torvalds	  computers on your local network which support NFS can access certain
16761da177e4SLinus Torvalds	  directories on your box transparently, you have two options: you can
16771da177e4SLinus Torvalds	  use the self-contained user space program nfsd, in which case you
16781da177e4SLinus Torvalds	  should say N here, or you can say Y and use the kernel based NFS
16791da177e4SLinus Torvalds	  server. The advantage of the kernel based solution is that it is
16801da177e4SLinus Torvalds	  faster.
16811da177e4SLinus Torvalds
16821da177e4SLinus Torvalds	  In either case, you will need support software; the respective
16831da177e4SLinus Torvalds	  locations are given in the file <file:Documentation/Changes> in the
16841da177e4SLinus Torvalds	  NFS section.
16851da177e4SLinus Torvalds
16861da177e4SLinus Torvalds	  If you say Y here, you will get support for version 2 of the NFS
16871da177e4SLinus Torvalds	  protocol (NFSv2). If you also want NFSv3, say Y to the next question
16881da177e4SLinus Torvalds	  as well.
16891da177e4SLinus Torvalds
16901da177e4SLinus Torvalds	  Please read the NFS-HOWTO, available from
16911da177e4SLinus Torvalds	  <http://www.tldp.org/docs.html#howto>.
16921da177e4SLinus Torvalds
16931da177e4SLinus Torvalds	  To compile the NFS server support as a module, choose M here: the
16941da177e4SLinus Torvalds	  module will be called nfsd.  If unsure, say N.
16951da177e4SLinus Torvalds
1696a257cdd0SAndreas Gruenbacherconfig NFSD_V2_ACL
1697a257cdd0SAndreas Gruenbacher	bool
1698a257cdd0SAndreas Gruenbacher	depends on NFSD
1699a257cdd0SAndreas Gruenbacher
17001da177e4SLinus Torvaldsconfig NFSD_V3
17011da177e4SLinus Torvalds	bool "Provide NFSv3 server support"
17021da177e4SLinus Torvalds	depends on NFSD
17031da177e4SLinus Torvalds	help
17041da177e4SLinus Torvalds	  If you would like to include the NFSv3 server as well as the NFSv2
17051da177e4SLinus Torvalds	  server, say Y here.  If unsure, say Y.
17061da177e4SLinus Torvalds
1707a257cdd0SAndreas Gruenbacherconfig NFSD_V3_ACL
1708a257cdd0SAndreas Gruenbacher	bool "Provide server support for the NFSv3 ACL protocol extension"
1709a257cdd0SAndreas Gruenbacher	depends on NFSD_V3
1710a257cdd0SAndreas Gruenbacher	help
1711a257cdd0SAndreas Gruenbacher	  Implement the NFSv3 ACL protocol extension for manipulating POSIX
1712a257cdd0SAndreas Gruenbacher	  Access Control Lists on exported file systems. NFS clients should
1713a257cdd0SAndreas Gruenbacher	  be compiled with the NFSv3 ACL protocol extension; see the
1714a257cdd0SAndreas Gruenbacher	  CONFIG_NFS_V3_ACL option.  If unsure, say N.
1715a257cdd0SAndreas Gruenbacher
17161da177e4SLinus Torvaldsconfig NFSD_V4
17171da177e4SLinus Torvalds	bool "Provide NFSv4 server support (EXPERIMENTAL)"
17188cd69e1bSTrond Myklebust	depends on NFSD && NFSD_V3 && EXPERIMENTAL
171942ed95c4SJ. Bruce Fields	select RPCSEC_GSS_KRB5
17201da177e4SLinus Torvalds	help
17211da177e4SLinus Torvalds	  If you would like to include the NFSv4 server as well as the NFSv2
17221da177e4SLinus Torvalds	  and NFSv3 servers, say Y here.  This feature is experimental, and
17231da177e4SLinus Torvalds	  should only be used if you are interested in helping to test NFSv4.
17241da177e4SLinus Torvalds	  If unsure, say N.
17251da177e4SLinus Torvalds
17261da177e4SLinus Torvaldsconfig NFSD_TCP
17271da177e4SLinus Torvalds	bool "Provide NFS server over TCP support"
17281da177e4SLinus Torvalds	depends on NFSD
17291da177e4SLinus Torvalds	default y
17301da177e4SLinus Torvalds	help
17311da177e4SLinus Torvalds	  If you want your NFS server to support TCP connections, say Y here.
17321da177e4SLinus Torvalds	  TCP connections usually perform better than the default UDP when
17331da177e4SLinus Torvalds	  the network is lossy or congested.  If unsure, say Y.
17341da177e4SLinus Torvalds
17351da177e4SLinus Torvaldsconfig ROOT_NFS
17361da177e4SLinus Torvalds	bool "Root file system on NFS"
17371da177e4SLinus Torvalds	depends on NFS_FS=y && IP_PNP
17381da177e4SLinus Torvalds	help
17391da177e4SLinus Torvalds	  If you want your Linux box to mount its whole root file system (the
17401da177e4SLinus Torvalds	  one containing the directory /) from some other computer over the
17411da177e4SLinus Torvalds	  net via NFS (presumably because your box doesn't have a hard disk),
17421da177e4SLinus Torvalds	  say Y. Read <file:Documentation/nfsroot.txt> for details. It is
17431da177e4SLinus Torvalds	  likely that in this case, you also want to say Y to "Kernel level IP
17441da177e4SLinus Torvalds	  autoconfiguration" so that your box can discover its network address
17451da177e4SLinus Torvalds	  at boot time.
17461da177e4SLinus Torvalds
17471da177e4SLinus Torvalds	  Most people say N here.
17481da177e4SLinus Torvalds
17491da177e4SLinus Torvaldsconfig LOCKD
17501da177e4SLinus Torvalds	tristate
17511da177e4SLinus Torvalds
17521da177e4SLinus Torvaldsconfig LOCKD_V4
17531da177e4SLinus Torvalds	bool
17541da177e4SLinus Torvalds	depends on NFSD_V3 || NFS_V3
17551da177e4SLinus Torvalds	default y
17561da177e4SLinus Torvalds
17571da177e4SLinus Torvaldsconfig EXPORTFS
17581da177e4SLinus Torvalds	tristate
17591da177e4SLinus Torvalds
1760a257cdd0SAndreas Gruenbacherconfig NFS_ACL_SUPPORT
1761a257cdd0SAndreas Gruenbacher	tristate
1762a257cdd0SAndreas Gruenbacher	select FS_POSIX_ACL
1763a257cdd0SAndreas Gruenbacher
1764a257cdd0SAndreas Gruenbacherconfig NFS_COMMON
1765a257cdd0SAndreas Gruenbacher	bool
1766a257cdd0SAndreas Gruenbacher	depends on NFSD || NFS_FS
1767a257cdd0SAndreas Gruenbacher	default y
1768a257cdd0SAndreas Gruenbacher
17691da177e4SLinus Torvaldsconfig SUNRPC
17701da177e4SLinus Torvalds	tristate
17711da177e4SLinus Torvalds
17721da177e4SLinus Torvaldsconfig SUNRPC_GSS
17731da177e4SLinus Torvalds	tristate
17741da177e4SLinus Torvalds
1775c3a57ed7S\"Talpey, Thomas\config SUNRPC_XPRT_RDMA
1776c3a57ed7S\"Talpey, Thomas\	tristate "RDMA transport for sunrpc (EXPERIMENTAL)"
1777113632d0S\"Talpey, Thomas\	depends on SUNRPC && INFINIBAND && EXPERIMENTAL
1778c3a57ed7S\"Talpey, Thomas\	default m
1779c3a57ed7S\"Talpey, Thomas\	help
1780c3a57ed7S\"Talpey, Thomas\	  Adds a client RPC transport for supporting kernel NFS over RDMA
1781c3a57ed7S\"Talpey, Thomas\	  mounts, including Infiniband and iWARP. Experimental.
1782c3a57ed7S\"Talpey, Thomas\
178300a6e7bbSChuck Leverconfig SUNRPC_BIND34
178400a6e7bbSChuck Lever	bool "Support for rpcbind versions 3 & 4 (EXPERIMENTAL)"
178500a6e7bbSChuck Lever	depends on SUNRPC && EXPERIMENTAL
178600a6e7bbSChuck Lever	help
178700a6e7bbSChuck Lever	  Provides kernel support for querying rpcbind servers via versions 3
178800a6e7bbSChuck Lever	  and 4 of the rpcbind protocol.  The kernel automatically falls back
178900a6e7bbSChuck Lever	  to version 2 if a remote rpcbind service does not support versions
179000a6e7bbSChuck Lever	  3 or 4.
179100a6e7bbSChuck Lever
179200a6e7bbSChuck Lever	  If unsure, say N to get traditional behavior (version 2 rpcbind
179300a6e7bbSChuck Lever	  requests only).
179400a6e7bbSChuck Lever
17951da177e4SLinus Torvaldsconfig RPCSEC_GSS_KRB5
17961da177e4SLinus Torvalds	tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
17971da177e4SLinus Torvalds	depends on SUNRPC && EXPERIMENTAL
17981da177e4SLinus Torvalds	select SUNRPC_GSS
17991da177e4SLinus Torvalds	select CRYPTO
18001da177e4SLinus Torvalds	select CRYPTO_MD5
18011da177e4SLinus Torvalds	select CRYPTO_DES
1802bcbaecbbSPatrick McHardy	select CRYPTO_CBC
18031da177e4SLinus Torvalds	help
18041da177e4SLinus Torvalds	  Provides for secure RPC calls by means of a gss-api
18051da177e4SLinus Torvalds	  mechanism based on Kerberos V5. This is required for
18061da177e4SLinus Torvalds	  NFSv4.
18071da177e4SLinus Torvalds
18081da177e4SLinus Torvalds	  Note: Requires an auxiliary userspace daemon which may be found on
18091da177e4SLinus Torvalds		http://www.citi.umich.edu/projects/nfsv4/
18101da177e4SLinus Torvalds
18111da177e4SLinus Torvalds	  If unsure, say N.
18121da177e4SLinus Torvalds
18131da177e4SLinus Torvaldsconfig RPCSEC_GSS_SPKM3
18141da177e4SLinus Torvalds	tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
18151da177e4SLinus Torvalds	depends on SUNRPC && EXPERIMENTAL
18161da177e4SLinus Torvalds	select SUNRPC_GSS
18171da177e4SLinus Torvalds	select CRYPTO
18181da177e4SLinus Torvalds	select CRYPTO_MD5
18191da177e4SLinus Torvalds	select CRYPTO_DES
1820df6db302SJ. Bruce Fields	select CRYPTO_CAST5
1821bcbaecbbSPatrick McHardy	select CRYPTO_CBC
18221da177e4SLinus Torvalds	help
18231da177e4SLinus Torvalds	  Provides for secure RPC calls by means of a gss-api
18241da177e4SLinus Torvalds	  mechanism based on the SPKM3 public-key mechanism.
18251da177e4SLinus Torvalds
18261da177e4SLinus Torvalds	  Note: Requires an auxiliary userspace daemon which may be found on
18271da177e4SLinus Torvalds	  	http://www.citi.umich.edu/projects/nfsv4/
18281da177e4SLinus Torvalds
18291da177e4SLinus Torvalds	  If unsure, say N.
18301da177e4SLinus Torvalds
18311da177e4SLinus Torvaldsconfig SMB_FS
18321da177e4SLinus Torvalds	tristate "SMB file system support (to mount Windows shares etc.)"
18331da177e4SLinus Torvalds	depends on INET
18341da177e4SLinus Torvalds	select NLS
18351da177e4SLinus Torvalds	help
18361da177e4SLinus Torvalds	  SMB (Server Message Block) is the protocol Windows for Workgroups
18371da177e4SLinus Torvalds	  (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
18381da177e4SLinus Torvalds	  files and printers over local networks.  Saying Y here allows you to
18391da177e4SLinus Torvalds	  mount their file systems (often called "shares" in this context) and
18401da177e4SLinus Torvalds	  access them just like any other Unix directory.  Currently, this
18411da177e4SLinus Torvalds	  works only if the Windows machines use TCP/IP as the underlying
18421da177e4SLinus Torvalds	  transport protocol, and not NetBEUI.  For details, read
18431da177e4SLinus Torvalds	  <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
18441da177e4SLinus Torvalds	  available from <http://www.tldp.org/docs.html#howto>.
18451da177e4SLinus Torvalds
18461da177e4SLinus Torvalds	  Note: if you just want your box to act as an SMB *server* and make
18471da177e4SLinus Torvalds	  files and printing services available to Windows clients (which need
18481da177e4SLinus Torvalds	  to have a TCP/IP stack), you don't need to say Y here; you can use
18491da177e4SLinus Torvalds	  the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
18501da177e4SLinus Torvalds	  for that.
18511da177e4SLinus Torvalds
18521da177e4SLinus Torvalds	  General information about how to connect Linux, Windows machines and
18531da177e4SLinus Torvalds	  Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
18541da177e4SLinus Torvalds
18551da177e4SLinus Torvalds	  To compile the SMB support as a module, choose M here: the module will
18561da177e4SLinus Torvalds	  be called smbfs.  Most people say N, however.
18571da177e4SLinus Torvalds
18581da177e4SLinus Torvaldsconfig SMB_NLS_DEFAULT
18591da177e4SLinus Torvalds	bool "Use a default NLS"
18601da177e4SLinus Torvalds	depends on SMB_FS
18611da177e4SLinus Torvalds	help
18621da177e4SLinus Torvalds	  Enabling this will make smbfs use nls translations by default. You
18631da177e4SLinus Torvalds	  need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
18641da177e4SLinus Torvalds	  settings and you need to give the default nls for the SMB server as
18651da177e4SLinus Torvalds	  CONFIG_SMB_NLS_REMOTE.
18661da177e4SLinus Torvalds
18671da177e4SLinus Torvalds	  The nls settings can be changed at mount time, if your smbmount
18681da177e4SLinus Torvalds	  supports that, using the codepage and iocharset parameters.
18691da177e4SLinus Torvalds
18701da177e4SLinus Torvalds	  smbmount from samba 2.2.0 or later supports this.
18711da177e4SLinus Torvalds
18721da177e4SLinus Torvaldsconfig SMB_NLS_REMOTE
18731da177e4SLinus Torvalds	string "Default Remote NLS Option"
18741da177e4SLinus Torvalds	depends on SMB_NLS_DEFAULT
18751da177e4SLinus Torvalds	default "cp437"
18761da177e4SLinus Torvalds	help
18771da177e4SLinus Torvalds	  This setting allows you to specify a default value for which
18781da177e4SLinus Torvalds	  codepage the server uses. If this field is left blank no
18791da177e4SLinus Torvalds	  translations will be done by default. The local codepage/charset
18801da177e4SLinus Torvalds	  default to CONFIG_NLS_DEFAULT.
18811da177e4SLinus Torvalds
18821da177e4SLinus Torvalds	  The nls settings can be changed at mount time, if your smbmount
18831da177e4SLinus Torvalds	  supports that, using the codepage and iocharset parameters.
18841da177e4SLinus Torvalds
18851da177e4SLinus Torvalds	  smbmount from samba 2.2.0 or later supports this.
18861da177e4SLinus Torvalds
18871da177e4SLinus Torvaldsconfig CIFS
18881da177e4SLinus Torvalds	tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)"
18891da177e4SLinus Torvalds	depends on INET
18901da177e4SLinus Torvalds	select NLS
18911da177e4SLinus Torvalds	help
18921da177e4SLinus Torvalds	  This is the client VFS module for the Common Internet File System
18931da177e4SLinus Torvalds	  (CIFS) protocol which is the successor to the Server Message Block
18941da177e4SLinus Torvalds	  (SMB) protocol, the native file sharing mechanism for most early
18951da177e4SLinus Torvalds	  PC operating systems.  The CIFS protocol is fully supported by
18961da177e4SLinus Torvalds	  file servers such as Windows 2000 (including Windows 2003, NT 4
18971da177e4SLinus Torvalds	  and Windows XP) as well by Samba (which provides excellent CIFS
1898ec58ef03SSteve French	  server support for Linux and many other operating systems). Limited
18998af18971SSteve French	  support for OS/2 and Windows ME and similar servers is provided as well.
19001da177e4SLinus Torvalds
19011da177e4SLinus Torvalds	  The intent of the cifs module is to provide an advanced
19021da177e4SLinus Torvalds	  network file system client for mounting to CIFS compliant servers,
19031da177e4SLinus Torvalds	  including support for dfs (hierarchical name space), secure per-user
19041da177e4SLinus Torvalds	  session establishment, safe distributed caching (oplock), optional
19058af18971SSteve French	  packet 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
19373979877eSSteve French          SMB protocol needed to establish sessions with old SMB servers.
19383979877eSSteve French
19393979877eSSteve French	  Enabling this option allows the cifs module to mount to older
19403979877eSSteve French	  LANMAN based servers such as OS/2 and Windows 95, but such
19413979877eSSteve French	  mounts may be less secure than mounts using NTLM or more recent
19423979877eSSteve French	  security mechanisms if you are on a public network.  Unless you
19433979877eSSteve French	  have a need to access old SMB servers (and are on a private
19443979877eSSteve French	  network) you probably want to say N.  Even if this support
19453979877eSSteve French	  is enabled in the kernel build, they will not be used
19463979877eSSteve French	  automatically. At runtime LANMAN mounts are disabled but
19473979877eSSteve French	  can be set to required (or optional) either in
19483979877eSSteve French	  /proc/fs/cifs (see fs/cifs/README for more detail) or via an
19493979877eSSteve French	  option on the mount command. This support is disabled by
19503979877eSSteve French	  default in order to reduce the possibility of a downgrade
19513979877eSSteve French	  attack.
19523979877eSSteve French
19533979877eSSteve French	  If unsure, say N.
19543979877eSSteve French
19551da177e4SLinus Torvaldsconfig CIFS_XATTR
1956ec58ef03SSteve French        bool "CIFS extended attributes"
19571da177e4SLinus Torvalds        depends on CIFS
19581da177e4SLinus Torvalds        help
19591da177e4SLinus Torvalds          Extended attributes are name:value pairs associated with inodes by
19601da177e4SLinus Torvalds          the kernel or by users (see the attr(5) manual page, or visit
19611da177e4SLinus Torvalds          <http://acl.bestbits.at/> for details).  CIFS maps the name of
19621da177e4SLinus Torvalds          extended attributes beginning with the user namespace prefix
19631da177e4SLinus Torvalds          to SMB/CIFS EAs. EAs are stored on Windows servers without the
19641da177e4SLinus Torvalds          user namespace prefix, but their names are seen by Linux cifs clients
19651da177e4SLinus Torvalds          prefaced by the user namespace prefix. The system namespace
19661da177e4SLinus Torvalds          (used by some filesystems to store ACLs) is not supported at
19671da177e4SLinus Torvalds          this time.
19681da177e4SLinus Torvalds
19691da177e4SLinus Torvalds          If unsure, say N.
19701da177e4SLinus Torvalds
19711da177e4SLinus Torvaldsconfig CIFS_POSIX
1972ec58ef03SSteve French        bool "CIFS POSIX Extensions"
19731da177e4SLinus Torvalds        depends on CIFS_XATTR
19741da177e4SLinus Torvalds        help
19751da177e4SLinus Torvalds          Enabling this option will cause the cifs client to attempt to
19761da177e4SLinus Torvalds	  negotiate a newer dialect with servers, such as Samba 3.0.5
19771da177e4SLinus Torvalds	  or later, that optionally can handle more POSIX like (rather
19781da177e4SLinus Torvalds	  than Windows like) file behavior.  It also enables
19791da177e4SLinus Torvalds	  support for POSIX ACLs (getfacl and setfacl) to servers
19801da177e4SLinus Torvalds	  (such as Samba 3.10 and later) which can negotiate
19811da177e4SLinus Torvalds	  CIFS POSIX ACL support.  If unsure, say N.
19821da177e4SLinus Torvalds
19833979877eSSteve Frenchconfig CIFS_DEBUG2
19843856a9d4SSteve French	bool "Enable additional CIFS debugging routines"
19858ba10ab1SSteve French	depends on CIFS
19863979877eSSteve French	help
19873979877eSSteve French	   Enabling this option adds a few more debugging routines
19883979877eSSteve French	   to the cifs code which slightly increases the size of
19893979877eSSteve French	   the cifs module and can cause additional logging of debug
19903979877eSSteve French	   messages in some error paths, slowing performance. This
19913979877eSSteve French	   option can be turned off unless you are debugging
19923979877eSSteve French	   cifs problems.  If unsure, say N.
19933979877eSSteve French
19941da177e4SLinus Torvaldsconfig CIFS_EXPERIMENTAL
19951da177e4SLinus Torvalds	  bool "CIFS Experimental Features (EXPERIMENTAL)"
1996cb9dbff9SSteve French	  depends on CIFS && EXPERIMENTAL
19971da177e4SLinus Torvalds	  help
1998ec58ef03SSteve French	    Enables cifs features under testing. These features are
19998af18971SSteve French	    experimental and currently include DFS support and directory
20008af18971SSteve French	    change notification ie fcntl(F_DNOTIFY), as well as the upcall
20018af18971SSteve French	    mechanism which will be used for Kerberos session negotiation
20028af18971SSteve French	    and uid remapping.  Some of these features also may depend on
20038af18971SSteve French	    setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental
20048af18971SSteve French	    (which is disabled by default). See the file fs/cifs/README
20058af18971SSteve French	    for more details.  If unsure, say N.
20061da177e4SLinus Torvalds
2007a2653ebaSSteve Frenchconfig CIFS_UPCALL
20083979877eSSteve French	  bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
2009a2653ebaSSteve French	  depends on CIFS_EXPERIMENTAL
2010230a0395SAndrew Morton	  depends on CONNECTOR
2011a2653ebaSSteve French	  help
2012a2653ebaSSteve French	    Enables an upcall mechanism for CIFS which will be used to contact
2013a2653ebaSSteve French	    userspace helper utilities to provide SPNEGO packaged Kerberos
2014a2653ebaSSteve French	    tickets which are needed to mount to certain secure servers
20151b397f4fSSteve French	    (for which more secure Kerberos authentication is required). If
20161b397f4fSSteve French	    unsure, say N.
2017a2653ebaSSteve French
20181da177e4SLinus Torvaldsconfig NCP_FS
20191da177e4SLinus Torvalds	tristate "NCP file system support (to mount NetWare volumes)"
20201da177e4SLinus Torvalds	depends on IPX!=n || INET
20211da177e4SLinus Torvalds	help
20221da177e4SLinus Torvalds	  NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
20231da177e4SLinus Torvalds	  used by Novell NetWare clients to talk to file servers.  It is to
20241da177e4SLinus Torvalds	  IPX what NFS is to TCP/IP, if that helps.  Saying Y here allows you
20251da177e4SLinus Torvalds	  to mount NetWare file server volumes and to access them just like
20261da177e4SLinus Torvalds	  any other Unix directory.  For details, please read the file
20271da177e4SLinus Torvalds	  <file:Documentation/filesystems/ncpfs.txt> in the kernel source and
20281da177e4SLinus Torvalds	  the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
20291da177e4SLinus Torvalds
20301da177e4SLinus Torvalds	  You do not have to say Y here if you want your Linux box to act as a
20311da177e4SLinus Torvalds	  file *server* for Novell NetWare clients.
20321da177e4SLinus Torvalds
20331da177e4SLinus Torvalds	  General information about how to connect Linux, Windows machines and
20341da177e4SLinus Torvalds	  Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
20351da177e4SLinus Torvalds
20361da177e4SLinus Torvalds	  To compile this as a module, choose M here: the module will be called
20371da177e4SLinus Torvalds	  ncpfs.  Say N unless you are connected to a Novell network.
20381da177e4SLinus Torvalds
20391da177e4SLinus Torvaldssource "fs/ncpfs/Kconfig"
20401da177e4SLinus Torvalds
20411da177e4SLinus Torvaldsconfig CODA_FS
20421da177e4SLinus Torvalds	tristate "Coda file system support (advanced network fs)"
20431da177e4SLinus Torvalds	depends on INET
20441da177e4SLinus Torvalds	help
20451da177e4SLinus Torvalds	  Coda is an advanced network file system, similar to NFS in that it
20461da177e4SLinus Torvalds	  enables you to mount file systems of a remote server and access them
20471da177e4SLinus Torvalds	  with regular Unix commands as if they were sitting on your hard
20481da177e4SLinus Torvalds	  disk.  Coda has several advantages over NFS: support for
20491da177e4SLinus Torvalds	  disconnected operation (e.g. for laptops), read/write server
20501da177e4SLinus Torvalds	  replication, security model for authentication and encryption,
20511da177e4SLinus Torvalds	  persistent client caches and write back caching.
20521da177e4SLinus Torvalds
20531da177e4SLinus Torvalds	  If you say Y here, your Linux box will be able to act as a Coda
20541da177e4SLinus Torvalds	  *client*.  You will need user level code as well, both for the
20551da177e4SLinus Torvalds	  client and server.  Servers are currently user level, i.e. they need
20561da177e4SLinus Torvalds	  no kernel support.  Please read
20571da177e4SLinus Torvalds	  <file:Documentation/filesystems/coda.txt> and check out the Coda
20581da177e4SLinus Torvalds	  home page <http://www.coda.cs.cmu.edu/>.
20591da177e4SLinus Torvalds
20601da177e4SLinus Torvalds	  To compile the coda client support as a module, choose M here: the
20611da177e4SLinus Torvalds	  module will be called coda.
20621da177e4SLinus Torvalds
20631da177e4SLinus Torvaldsconfig CODA_FS_OLD_API
20641da177e4SLinus Torvalds	bool "Use 96-bit Coda file identifiers"
20651da177e4SLinus Torvalds	depends on CODA_FS
20661da177e4SLinus Torvalds	help
20671da177e4SLinus Torvalds	  A new kernel-userspace API had to be introduced for Coda v6.0
20681da177e4SLinus Torvalds	  to support larger 128-bit file identifiers as needed by the
20691da177e4SLinus Torvalds	  new realms implementation.
20701da177e4SLinus Torvalds
20711da177e4SLinus Torvalds	  However this new API is not backward compatible with older
20721da177e4SLinus Torvalds	  clients. If you really need to run the old Coda userspace
20731da177e4SLinus Torvalds	  cache manager then say Y.
20741da177e4SLinus Torvalds
20751da177e4SLinus Torvalds	  For most cases you probably want to say N.
20761da177e4SLinus Torvalds
20771da177e4SLinus Torvaldsconfig AFS_FS
207864aaa4f8SDavid Howells	tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
20791da177e4SLinus Torvalds	depends on INET && EXPERIMENTAL
208008e0e7c8SDavid Howells	select AF_RXRPC
20811da177e4SLinus Torvalds	help
20821da177e4SLinus Torvalds	  If you say Y here, you will get an experimental Andrew File System
20831da177e4SLinus Torvalds	  driver. It currently only supports unsecured read-only AFS access.
20841da177e4SLinus Torvalds
2085cc2e2767SMatt LaPlante	  See <file:Documentation/filesystems/afs.txt> for more information.
20861da177e4SLinus Torvalds
20871da177e4SLinus Torvalds	  If unsure, say N.
20881da177e4SLinus Torvalds
208908e0e7c8SDavid Howellsconfig AFS_DEBUG
209008e0e7c8SDavid Howells	bool "AFS dynamic debugging"
209108e0e7c8SDavid Howells	depends on AFS_FS
209208e0e7c8SDavid Howells	help
209308e0e7c8SDavid Howells	  Say Y here to make runtime controllable debugging messages appear.
209408e0e7c8SDavid Howells
209508e0e7c8SDavid Howells	  See <file:Documentation/filesystems/afs.txt> for more information.
209608e0e7c8SDavid Howells
209708e0e7c8SDavid Howells	  If unsure, say N.
209808e0e7c8SDavid Howells
209993fa58cbSEric Van Hensbergenconfig 9P_FS
210093fa58cbSEric Van Hensbergen	tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
2101bd238fb4SLatchesar Ionkov	depends on INET && NET_9P && EXPERIMENTAL
210293fa58cbSEric Van Hensbergen	help
210393fa58cbSEric Van Hensbergen	  If you say Y here, you will get experimental support for
210493fa58cbSEric Van Hensbergen	  Plan 9 resource sharing via the 9P2000 protocol.
210593fa58cbSEric Van Hensbergen
210693fa58cbSEric Van Hensbergen	  See <http://v9fs.sf.net> for more information.
210793fa58cbSEric Van Hensbergen
210893fa58cbSEric Van Hensbergen	  If unsure, say N.
210993fa58cbSEric Van Hensbergen
2110ea0985adSJan Engelhardtendif # NETWORK_FILESYSTEMS
21111da177e4SLinus Torvalds
21129361401eSDavid Howellsif BLOCK
21131da177e4SLinus Torvaldsmenu "Partition Types"
21141da177e4SLinus Torvalds
21151da177e4SLinus Torvaldssource "fs/partitions/Kconfig"
21161da177e4SLinus Torvalds
21171da177e4SLinus Torvaldsendmenu
21189361401eSDavid Howellsendif
21191da177e4SLinus Torvalds
21201da177e4SLinus Torvaldssource "fs/nls/Kconfig"
2121e7fd4179SDavid Teiglandsource "fs/dlm/Kconfig"
21221da177e4SLinus Torvalds
21231da177e4SLinus Torvaldsendmenu
21241da177e4SLinus Torvalds
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