If you are not using a security module that requires using
extended attributes for file security labels, say N.
-config EXT4DEV_FS
- tristate "Ext4dev/ext4 extended fs support development (EXPERIMENTAL)"
- depends on EXPERIMENTAL
+config EXT4_FS
+ tristate "The Extended 4 (ext4) filesystem"
select JBD2
select CRC16
help
- Ext4dev is a predecessor filesystem of the next generation
- extended fs ext4, based on ext3 filesystem code. It will be
- renamed ext4 fs later, once ext4dev is mature and stabilized.
+ This is the next generation of the ext3 filesystem.
Unlike the change from ext2 filesystem to ext3 filesystem,
- the on-disk format of ext4dev is not the same as ext3 any more:
- it is based on extent maps and it supports 48-bit physical block
- numbers. These combined on-disk format changes will allow
- ext4dev/ext4 to handle more than 16 TB filesystem volumes --
- a hard limit that ext3 cannot overcome without changing the
- on-disk format.
-
- Other than extent maps and 48-bit block numbers, ext4dev also is
- likely to have other new features such as persistent preallocation,
- high resolution time stamps, and larger file support etc. These
- features will be added to ext4dev gradually.
+ the on-disk format of ext4 is not forwards compatible with
+ ext3; it is based on extent maps and it supports 48-bit
+ physical block numbers. The ext4 filesystem also supports delayed
+ allocation, persistent preallocation, high resolution time stamps,
+ and a number of other features to improve performance and speed
+ up fsck time. For more information, please see the web pages at
+ http://ext4.wiki.kernel.org.
+
+ The ext4 filesystem will support mounting an ext3
+ filesystem; while there will be some performance gains from
+ the delayed allocation and inode table readahead, the best
+ performance gains will require enabling ext4 features in the
+ filesystem, or formating a new filesystem as an ext4
+ filesystem initially.
To compile this file system support as a module, choose M here. The
- module will be called ext4dev.
+ module will be called ext4.
If unsure, say N.
-config EXT4DEV_FS_XATTR
- bool "Ext4dev extended attributes"
- depends on EXT4DEV_FS
+config EXT4DEV_COMPAT
+ bool "Enable ext4dev compatibility"
+ depends on EXT4_FS
+ help
+ Starting with 2.6.28, the name of the ext4 filesystem was
+ renamed from ext4dev to ext4. Unfortunately there are some
+ legacy userspace programs (such as klibc's fstype) have
+ "ext4dev" hardcoded.
+
+ To enable backwards compatibility so that systems that are
+ still expecting to mount ext4 filesystems using ext4dev,
+ chose Y here. This feature will go away by 2.6.31, so
+ please arrange to get your userspace programs fixed!
+
+config EXT4_FS_XATTR
+ bool "Ext4 extended attributes"
+ depends on EXT4_FS
default y
help
Extended attributes are name:value pairs associated with inodes by
If unsure, say N.
- You need this for POSIX ACL support on ext4dev/ext4.
+ You need this for POSIX ACL support on ext4.
-config EXT4DEV_FS_POSIX_ACL
- bool "Ext4dev POSIX Access Control Lists"
- depends on EXT4DEV_FS_XATTR
+config EXT4_FS_POSIX_ACL
+ bool "Ext4 POSIX Access Control Lists"
+ depends on EXT4_FS_XATTR
select FS_POSIX_ACL
help
POSIX Access Control Lists (ACLs) support permissions for users and
If you don't know what Access Control Lists are, say N
-config EXT4DEV_FS_SECURITY
- bool "Ext4dev Security Labels"
- depends on EXT4DEV_FS_XATTR
+config EXT4_FS_SECURITY
+ bool "Ext4 Security Labels"
+ depends on EXT4_FS_XATTR
help
Security labels support alternative access control models
implemented by security modules like SELinux. This option
enables an extended attribute handler for file security
- labels in the ext4dev/ext4 filesystem.
+ labels in the ext4 filesystem.
If you are not using a security module that requires using
extended attributes for file security labels, say N.
tristate
help
This is a generic journalling layer for block devices. It is
- currently used by the ext3 and OCFS2 file systems, but it could
- also be used to add journal support to other file systems or block
+ currently used by the ext3 file system, but it could also be
+ used to add journal support to other file systems or block
devices such as RAID or LVM.
- If you are using the ext3 or OCFS2 file systems, you need to
- say Y here. If you are not using ext3 OCFS2 then you will probably
- want to say N.
+ If you are using the ext3 file system, you need to say Y here.
+ If you are not using ext3 then you will probably want to say N.
To compile this device as a module, choose M here: the module will be
- called jbd. If you are compiling ext3 or OCFS2 into the kernel,
- you cannot compile this code as a module.
+ called jbd. If you are compiling ext3 into the kernel, you
+ cannot compile this code as a module.
config JBD_DEBUG
bool "JBD (ext3) debugging support"
help
This is a generic journaling layer for block devices that support
both 32-bit and 64-bit block numbers. It is currently used by
- the ext4dev/ext4 filesystem, but it could also be used to add
+ the ext4 and OCFS2 filesystems, but it could also be used to add
journal support to other file systems or block devices such
as RAID or LVM.
- If you are using ext4dev/ext4, you need to say Y here. If you are not
- using ext4dev/ext4 then you will probably want to say N.
+ If you are using ext4 or OCFS2, you need to say Y here.
+ If you are not using ext4 or OCFS2 then you will
+ probably want to say N.
To compile this device as a module, choose M here. The module will be
- called jbd2. If you are compiling ext4dev/ext4 into the kernel,
+ called jbd2. If you are compiling ext4 or OCFS2 into the kernel,
you cannot compile this code as a module.
config JBD2_DEBUG
- bool "JBD2 (ext4dev/ext4) debugging support"
+ bool "JBD2 (ext4) debugging support"
depends on JBD2 && DEBUG_FS
help
- If you are using the ext4dev/ext4 journaled file system (or
+ If you are using the ext4 journaled file system (or
potentially any other filesystem/device using JBD2), this option
allows you to enable debugging output while the system is running,
in order to help track down any problems you are having.
config FS_MBCACHE
# Meta block cache for Extended Attributes (ext2/ext3/ext4)
tristate
- depends on EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4DEV_FS_XATTR
- default y if EXT2_FS=y || EXT3_FS=y || EXT4DEV_FS=y
- default m if EXT2_FS=m || EXT3_FS=m || EXT4DEV_FS=m
+ depends on EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4_FS_XATTR
+ default y if EXT2_FS=y || EXT3_FS=y || EXT4_FS=y
+ default m if EXT2_FS=m || EXT3_FS=m || EXT4_FS=m
config REISERFS_FS
tristate "Reiserfs support"
bool
default n
+config FILE_LOCKING
+ bool "Enable POSIX file locking API" if EMBEDDED
+ default y
+ help
+ This option enables standard file locking support, required
+ for filesystems like NFS and for the flock() system
+ call. Disabling this option saves about 11k.
+
source "fs/xfs/Kconfig"
source "fs/gfs2/Kconfig"
tristate "OCFS2 file system support"
depends on NET && SYSFS
select CONFIGFS_FS
- select JBD
+ select JBD2
select CRC32
help
OCFS2 is a general purpose extent based shared disk cluster file
this option for debugging only as it is likely to decrease
performance of the filesystem.
+config OCFS2_COMPAT_JBD
+ bool "Use JBD for compatibility"
+ depends on OCFS2_FS
+ default n
+ select JBD
+ help
+ The ocfs2 filesystem now uses JBD2 for its journalling. JBD2
+ is backwards compatible with JBD. It is safe to say N here.
+ However, if you really want to use the original JBD, say Y here.
+
endif # BLOCK
config DNOTIFY
To compile the EFS file system support as a module, choose M here: the
module will be called efs.
-config JFFS2_FS
- tristate "Journalling Flash File System v2 (JFFS2) support"
- select CRC32
- depends on MTD
- help
- JFFS2 is the second generation of the Journalling Flash File System
- for use on diskless embedded devices. It provides improved wear
- levelling, compression and support for hard links. You cannot use
- this on normal block devices, only on 'MTD' devices.
-
- Further information on the design and implementation of JFFS2 is
- available at <http://sources.redhat.com/jffs2/>.
-
-config JFFS2_FS_DEBUG
- int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
- depends on JFFS2_FS
- default "0"
- help
- This controls the amount of debugging messages produced by the JFFS2
- code. Set it to zero for use in production systems. For evaluation,
- testing and debugging, it's advisable to set it to one. This will
- enable a few assertions and will print debugging messages at the
- KERN_DEBUG loglevel, where they won't normally be visible. Level 2
- is unlikely to be useful - it enables extra debugging in certain
- areas which at one point needed debugging, but when the bugs were
- located and fixed, the detailed messages were relegated to level 2.
-
- If reporting bugs, please try to have available a full dump of the
- messages at debug level 1 while the misbehaviour was occurring.
-
-config JFFS2_FS_WRITEBUFFER
- bool "JFFS2 write-buffering support"
- depends on JFFS2_FS
- default y
- help
- This enables the write-buffering support in JFFS2.
-
- This functionality is required to support JFFS2 on the following
- types of flash devices:
- - NAND flash
- - NOR flash with transparent ECC
- - DataFlash
-
-config JFFS2_FS_WBUF_VERIFY
- bool "Verify JFFS2 write-buffer reads"
- depends on JFFS2_FS_WRITEBUFFER
- default n
- help
- This causes JFFS2 to read back every page written through the
- write-buffer, and check for errors.
-
-config JFFS2_SUMMARY
- bool "JFFS2 summary support (EXPERIMENTAL)"
- depends on JFFS2_FS && EXPERIMENTAL
- default n
- help
- This feature makes it possible to use summary information
- for faster filesystem mount.
-
- The summary information can be inserted into a filesystem image
- by the utility 'sumtool'.
-
- If unsure, say 'N'.
-
-config JFFS2_FS_XATTR
- bool "JFFS2 XATTR support (EXPERIMENTAL)"
- depends on JFFS2_FS && EXPERIMENTAL
- default n
- help
- Extended attributes are name:value pairs associated with inodes by
- the kernel or by users (see the attr(5) manual page, or visit
- <http://acl.bestbits.at/> for details).
-
- If unsure, say N.
-
-config JFFS2_FS_POSIX_ACL
- bool "JFFS2 POSIX Access Control Lists"
- depends on JFFS2_FS_XATTR
- default y
- select FS_POSIX_ACL
- help
- Posix Access Control Lists (ACLs) support permissions for users and
- groups beyond the owner/group/world scheme.
-
- To learn more about Access Control Lists, visit the Posix ACLs for
- Linux website <http://acl.bestbits.at/>.
-
- If you don't know what Access Control Lists are, say N
-
-config JFFS2_FS_SECURITY
- bool "JFFS2 Security Labels"
- depends on JFFS2_FS_XATTR
- default y
- help
- Security labels support alternative access control models
- implemented by security modules like SELinux. This option
- enables an extended attribute handler for file security
- labels in the jffs2 filesystem.
-
- If you are not using a security module that requires using
- extended attributes for file security labels, say N.
-
-config JFFS2_COMPRESSION_OPTIONS
- bool "Advanced compression options for JFFS2"
- depends on JFFS2_FS
- default n
- help
- Enabling this option allows you to explicitly choose which
- compression modules, if any, are enabled in JFFS2. Removing
- compressors can mean you cannot read existing file systems,
- and enabling experimental compressors can mean that you
- write a file system which cannot be read by a standard kernel.
-
- If unsure, you should _definitely_ say 'N'.
-
-config JFFS2_ZLIB
- bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS
- select ZLIB_INFLATE
- select ZLIB_DEFLATE
- depends on JFFS2_FS
- default y
- help
- Zlib is designed to be a free, general-purpose, legally unencumbered,
- lossless data-compression library for use on virtually any computer
- hardware and operating system. See <http://www.gzip.org/zlib/> for
- further information.
-
- Say 'Y' if unsure.
-
-config JFFS2_LZO
- bool "JFFS2 LZO compression support" if JFFS2_COMPRESSION_OPTIONS
- select LZO_COMPRESS
- select LZO_DECOMPRESS
- depends on JFFS2_FS
- default n
- help
- minilzo-based compression. Generally works better than Zlib.
-
- This feature was added in July, 2007. Say 'N' if you need
- compatibility with older bootloaders or kernels.
-
-config JFFS2_RTIME
- bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
- depends on JFFS2_FS
- default y
- help
- Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
-
-config JFFS2_RUBIN
- bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
- depends on JFFS2_FS
- default n
- help
- RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
-
-choice
- prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
- default JFFS2_CMODE_PRIORITY
- depends on JFFS2_FS
- help
- You can set here the default compression mode of JFFS2 from
- the available compression modes. Don't touch if unsure.
-
-config JFFS2_CMODE_NONE
- bool "no compression"
- help
- Uses no compression.
-
-config JFFS2_CMODE_PRIORITY
- bool "priority"
- help
- Tries the compressors in a predefined order and chooses the first
- successful one.
-
-config JFFS2_CMODE_SIZE
- bool "size (EXPERIMENTAL)"
- help
- Tries all compressors and chooses the one which has the smallest
- result.
-
-config JFFS2_CMODE_FAVOURLZO
- bool "Favour LZO"
- help
- Tries all compressors and chooses the one which has the smallest
- result but gives some preference to LZO (which has faster
- decompression) at the expense of size.
-
-endchoice
-
+source "fs/jffs2/Kconfig"
# UBIFS File system configuration
source "fs/ubifs/Kconfig"
If unsure, say N.
+config SUNRPC_REGISTER_V4
+ bool "Register local RPC services via rpcbind v4 (EXPERIMENTAL)"
+ depends on SUNRPC && EXPERIMENTAL
+ default n
+ help
+ Sun added support for registering RPC services at an IPv6
+ address by creating two new versions of the rpcbind protocol
+ (RFC 1833).
+
+ This option enables support in the kernel RPC server for
+ registering kernel RPC services via version 4 of the rpcbind
+ protocol. If you enable this option, you must run a portmapper
+ daemon that supports rpcbind protocol version 4.
+
+ Serving NFS over IPv6 from knfsd (the kernel's NFS server)
+ requires that you enable this option and use a portmapper that
+ supports rpcbind version 4.
+
+ If unsure, say N to get traditional behavior (register kernel
+ RPC services using only rpcbind version 2). Distributions
+ using the legacy Linux portmapper daemon must say N here.
+
config RPCSEC_GSS_KRB5
tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
depends on SUNRPC && EXPERIMENTAL
smbmount from samba 2.2.0 or later supports this.
-config CIFS
- tristate "CIFS support (advanced network filesystem, SMBFS successor)"
- depends on INET
- select NLS
- help
- This is the client VFS module for the Common Internet File System
- (CIFS) protocol which is the successor to the Server Message Block
- (SMB) protocol, the native file sharing mechanism for most early
- PC operating systems. The CIFS protocol is fully supported by
- file servers such as Windows 2000 (including Windows 2003, NT 4
- and Windows XP) as well by Samba (which provides excellent CIFS
- server support for Linux and many other operating systems). Limited
- support for OS/2 and Windows ME and similar servers is provided as
- well.
-
- The cifs module provides an advanced network file system
- client for mounting to CIFS compliant servers. It includes
- support for DFS (hierarchical name space), secure per-user
- session establishment via Kerberos or NTLM or NTLMv2,
- safe distributed caching (oplock), optional packet
- signing, Unicode and other internationalization improvements.
- If you need to mount to Samba or Windows from this machine, say Y.
-
-config CIFS_STATS
- bool "CIFS statistics"
- depends on CIFS
- help
- Enabling this option will cause statistics for each server share
- mounted by the cifs client to be displayed in /proc/fs/cifs/Stats
-
-config CIFS_STATS2
- bool "Extended statistics"
- depends on CIFS_STATS
- help
- Enabling this option will allow more detailed statistics on SMB
- request timing to be displayed in /proc/fs/cifs/DebugData and also
- allow optional logging of slow responses to dmesg (depending on the
- value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details).
- These additional statistics may have a minor effect on performance
- and memory utilization.
-
- Unless you are a developer or are doing network performance analysis
- or tuning, say N.
-
-config CIFS_WEAK_PW_HASH
- bool "Support legacy servers which use weaker LANMAN security"
- depends on CIFS
- help
- Modern CIFS servers including Samba and most Windows versions
- (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos)
- security mechanisms. These hash the password more securely
- than the mechanisms used in the older LANMAN version of the
- SMB protocol but LANMAN based authentication is needed to
- establish sessions with some old SMB servers.
-
- Enabling this option allows the cifs module to mount to older
- LANMAN based servers such as OS/2 and Windows 95, but such
- mounts may be less secure than mounts using NTLM or more recent
- security mechanisms if you are on a public network. Unless you
- have a need to access old SMB servers (and are on a private
- network) you probably want to say N. Even if this support
- is enabled in the kernel build, LANMAN authentication will not be
- used automatically. At runtime LANMAN mounts are disabled but
- can be set to required (or optional) either in
- /proc/fs/cifs (see fs/cifs/README for more detail) or via an
- option on the mount command. This support is disabled by
- default in order to reduce the possibility of a downgrade
- attack.
-
- If unsure, say N.
-
-config CIFS_UPCALL
- bool "Kerberos/SPNEGO advanced session setup"
- depends on CIFS && KEYS
- help
- Enables an upcall mechanism for CIFS which accesses
- userspace helper utilities to provide SPNEGO packaged (RFC 4178)
- Kerberos tickets which are needed to mount to certain secure servers
- (for which more secure Kerberos authentication is required). If
- unsure, say N.
-
-config CIFS_XATTR
- bool "CIFS extended attributes"
- depends on CIFS
- help
- Extended attributes are name:value pairs associated with inodes by
- the kernel or by users (see the attr(5) manual page, or visit
- <http://acl.bestbits.at/> for details). CIFS maps the name of
- extended attributes beginning with the user namespace prefix
- to SMB/CIFS EAs. EAs are stored on Windows servers without the
- user namespace prefix, but their names are seen by Linux cifs clients
- prefaced by the user namespace prefix. The system namespace
- (used by some filesystems to store ACLs) is not supported at
- this time.
-
- If unsure, say N.
-
-config CIFS_POSIX
- bool "CIFS POSIX Extensions"
- depends on CIFS_XATTR
- help
- Enabling this option will cause the cifs client to attempt to
- negotiate a newer dialect with servers, such as Samba 3.0.5
- or later, that optionally can handle more POSIX like (rather
- than Windows like) file behavior. It also enables
- support for POSIX ACLs (getfacl and setfacl) to servers
- (such as Samba 3.10 and later) which can negotiate
- CIFS POSIX ACL support. If unsure, say N.
-
-config CIFS_DEBUG2
- bool "Enable additional CIFS debugging routines"
- depends on CIFS
- help
- Enabling this option adds a few more debugging routines
- to the cifs code which slightly increases the size of
- the cifs module and can cause additional logging of debug
- messages in some error paths, slowing performance. This
- option can be turned off unless you are debugging
- cifs problems. If unsure, say N.
-
-config CIFS_EXPERIMENTAL
- bool "CIFS Experimental Features (EXPERIMENTAL)"
- depends on CIFS && EXPERIMENTAL
- help
- Enables cifs features under testing. These features are
- experimental and currently include DFS support and directory
- change notification ie fcntl(F_DNOTIFY), as well as the upcall
- mechanism which will be used for Kerberos session negotiation
- and uid remapping. Some of these features also may depend on
- setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental
- (which is disabled by default). See the file fs/cifs/README
- for more details. If unsure, say N.
-
-config CIFS_DFS_UPCALL
- bool "DFS feature support (EXPERIMENTAL)"
- depends on CIFS_EXPERIMENTAL
- depends on KEYS
- help
- Enables an upcall mechanism for CIFS which contacts userspace
- helper utilities to provide server name resolution (host names to
- IP addresses) which is needed for implicit mounts of DFS junction
- points. If unsure, say N.
+source "fs/cifs/Kconfig"
config NCP_FS
tristate "NCP file system support (to mount NetWare volumes)"
projects / cascardo / linux.git / blobdiff