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.
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.
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 filesystem, 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, you need to say Y here. If you are not
+ using ext4 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 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"
It is safe to say Y, as the clustering method is run-time
selectable.
+config OCFS2_FS_STATS
+ bool "OCFS2 statistics"
+ depends on OCFS2_FS
+ default y
+ help
+ This option allows some fs statistics to be captured. Enabling
+ this option may increase the memory consumption.
+
config OCFS2_DEBUG_MASKLOG
bool "OCFS2 logging support"
depends on OCFS2_FS
menu "Pseudo filesystems"
-config PROC_FS
- bool "/proc file system support" if EMBEDDED
- default y
- help
- This is a virtual file system providing information about the status
- of the system. "Virtual" means that it doesn't take up any space on
- your hard disk: the files are created on the fly by the kernel when
- you try to access them. Also, you cannot read the files with older
- version of the program less: you need to use more or cat.
-
- It's totally cool; for example, "cat /proc/interrupts" gives
- information about what the different IRQs are used for at the moment
- (there is a small number of Interrupt ReQuest lines in your computer
- that are used by the attached devices to gain the CPU's attention --
- often a source of trouble if two devices are mistakenly configured
- to use the same IRQ). The program procinfo to display some
- information about your system gathered from the /proc file system.
-
- Before you can use the /proc file system, it has to be mounted,
- meaning it has to be given a location in the directory hierarchy.
- That location should be /proc. A command such as "mount -t proc proc
- /proc" or the equivalent line in /etc/fstab does the job.
-
- The /proc file system is explained in the file
- <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
- ("man 5 proc").
-
- This option will enlarge your kernel by about 67 KB. Several
- programs depend on this, so everyone should say Y here.
-
-config PROC_KCORE
- bool "/proc/kcore support" if !ARM
- depends on PROC_FS && MMU
-
-config PROC_VMCORE
- bool "/proc/vmcore support (EXPERIMENTAL)"
- depends on PROC_FS && CRASH_DUMP
- default y
- help
- Exports the dump image of crashed kernel in ELF format.
-
-config PROC_SYSCTL
- bool "Sysctl support (/proc/sys)" if EMBEDDED
- depends on PROC_FS
- select SYSCTL
- default y
- ---help---
- The sysctl interface provides a means of dynamically changing
- certain kernel parameters and variables on the fly without requiring
- a recompile of the kernel or reboot of the system. The primary
- interface is through /proc/sys. If you say Y here a tree of
- modifiable sysctl entries will be generated beneath the
- /proc/sys directory. They are explained in the files
- in <file:Documentation/sysctl/>. Note that enabling this
- option will enlarge the kernel by at least 8 KB.
-
- As it is generally a good thing, you should say Y here unless
- building a kernel for install/rescue disks or your system is very
- limited in memory.
+source "fs/proc/Kconfig"
config SYSFS
bool "sysfs file system support" if EMBEDDED
endchoice
+# UBIFS File system configuration
+source "fs/ubifs/Kconfig"
+
config CRAMFS
tristate "Compressed ROM file system support (cramfs)"
depends on BLOCK
partition (the one containing the directory /) cannot be compiled as
a module.
+config OMFS_FS
+ tristate "SonicBlue Optimized MPEG File System support"
+ depends on BLOCK
+ select CRC_ITU_T
+ help
+ This is the proprietary file system used by the Rio Karma music
+ player and ReplayTV DVR. Despite the name, this filesystem is not
+ more efficient than a standard FS for MPEG files, in fact likely
+ the opposite is true. Say Y if you have either of these devices
+ and wish to mount its disk.
+
+ To compile this file system support as a module, choose M here: the
+ module will be called omfs. If unsure, say N.
config HPFS_FS
tristate "OS/2 HPFS file system support"
The recently released UFS2 variant (used in FreeBSD 5.x) is
READ-ONLY supported.
- If you only intend to mount files from some other Unix over the
- network using NFS, you don't need the UFS file system support (but
- you need NFS file system support obviously).
-
Note that this option is generally not needed for floppies, since a
good portable way to transport files and directories between unixes
(and even other operating systems) is given by the tar program ("man
Say Y here to get to see options for network filesystems and
filesystem-related networking code, such as NFS daemon and
RPCSEC security modules.
+
This option alone does not add any kernel code.
If you say N, all options in this submenu will be skipped and
if NETWORK_FILESYSTEMS
config NFS_FS
- tristate "NFS file system support"
+ tristate "NFS client support"
depends on INET
select LOCKD
select SUNRPC
select NFS_ACL_SUPPORT if NFS_V3_ACL
help
- If you are connected to some other (usually local) Unix computer
- (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
- on that computer (the NFS server) using the Network File Sharing
- protocol, say Y. "Mounting files" means that the client can access
- the files with usual UNIX commands as if they were sitting on the
- client's hard disk. For this to work, the server must run the
- programs nfsd and mountd (but does not need to have NFS file system
- support enabled in its kernel). NFS is explained in the Network
- Administrator's Guide, available from
- <http://www.tldp.org/docs.html#guide>, on its man page: "man
- nfs", and in the NFS-HOWTO.
-
- A superior but less widely used alternative to NFS is provided by
- the Coda file system; see "Coda file system support" below.
+ Choose Y here if you want to access files residing on other
+ computers using Sun's Network File System protocol. To compile
+ this file system support as a module, choose M here: the module
+ will be called nfs.
- If you say Y here, you should have said Y to TCP/IP networking also.
- This option would enlarge your kernel by about 27 KB.
+ To mount file systems exported by NFS servers, you also need to
+ install the user space mount.nfs command which can be found in
+ the Linux nfs-utils package, available from http://linux-nfs.org/.
+ Information about using the mount command is available in the
+ mount(8) man page. More detail about the Linux NFS client
+ implementation is available via the nfs(5) man page.
- To compile this file system support as a module, choose M here: the
- module will be called nfs.
+ Below you can choose which versions of the NFS protocol are
+ available in the kernel to mount NFS servers. Support for NFS
+ version 2 (RFC 1094) is always available when NFS_FS is selected.
- If you are configuring a diskless machine which will mount its root
- file system over NFS at boot time, say Y here and to "Kernel
- level IP autoconfiguration" above and to "Root file system on NFS"
- below. You cannot compile this driver as a module in this case.
- There are two packages designed for booting diskless machines over
- the net: netboot, available from
- <http://ftp1.sourceforge.net/netboot/>, and Etherboot,
- available from <http://ftp1.sourceforge.net/etherboot/>.
+ To configure a system which mounts its root file system via NFS
+ at boot time, say Y here, select "Kernel level IP
+ autoconfiguration" in the NETWORK menu, and select "Root file
+ system on NFS" below. You cannot compile this file system as a
+ module in this case.
- If you don't know what all this is about, say N.
+ If unsure, say N.
config NFS_V3
- bool "Provide NFSv3 client support"
+ bool "NFS client support for NFS version 3"
depends on NFS_FS
help
- Say Y here if you want your NFS client to be able to speak version
- 3 of the NFS protocol.
+ This option enables support for version 3 of the NFS protocol
+ (RFC 1813) in the kernel's NFS client.
If unsure, say Y.
config NFS_V3_ACL
- bool "Provide client support for the NFSv3 ACL protocol extension"
+ bool "NFS client support for the NFSv3 ACL protocol extension"
depends on NFS_V3
help
- Implement the NFSv3 ACL protocol extension for manipulating POSIX
- Access Control Lists. The server should also be compiled with
- the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option.
+ Some NFS servers support an auxiliary NFSv3 ACL protocol that
+ Sun added to Solaris but never became an official part of the
+ NFS version 3 protocol. This protocol extension allows
+ applications on NFS clients to manipulate POSIX Access Control
+ Lists on files residing on NFS servers. NFS servers enforce
+ ACLs on local files whether this protocol is available or not.
+
+ Choose Y here if your NFS server supports the Solaris NFSv3 ACL
+ protocol extension and you want your NFS client to allow
+ applications to access and modify ACLs on files on the server.
+
+ Most NFS servers don't support the Solaris NFSv3 ACL protocol
+ extension. You can choose N here or specify the "noacl" mount
+ option to prevent your NFS client from trying to use the NFSv3
+ ACL protocol.
If unsure, say N.
config NFS_V4
- bool "Provide NFSv4 client support (EXPERIMENTAL)"
+ bool "NFS client support for NFS version 4 (EXPERIMENTAL)"
depends on NFS_FS && EXPERIMENTAL
select RPCSEC_GSS_KRB5
help
- Say Y here if you want your NFS client to be able to speak the newer
- version 4 of the NFS protocol.
+ This option enables support for version 4 of the NFS protocol
+ (RFC 3530) in the kernel's NFS client.
- Note: Requires auxiliary userspace daemons which may be found on
- http://www.citi.umich.edu/projects/nfsv4/
+ To mount NFS servers using NFSv4, you also need to install user
+ space programs which can be found in the Linux nfs-utils package,
+ available from http://linux-nfs.org/.
If unsure, say N.
+config ROOT_NFS
+ bool "Root file system on NFS"
+ depends on NFS_FS=y && IP_PNP
+ help
+ If you want your system to mount its root file system via NFS,
+ choose Y here. This is common practice for managing systems
+ without local permanent storage. For details, read
+ <file:Documentation/filesystems/nfsroot.txt>.
+
+ Most people say N here.
+
config NFSD
tristate "NFS server support"
depends on INET
If unsure, say N.
-config ROOT_NFS
- bool "Root file system on NFS"
- depends on NFS_FS=y && IP_PNP
- help
- If you want your Linux box to mount its whole root file system (the
- one containing the directory /) from some other computer over the
- net via NFS (presumably because your box doesn't have a hard disk),
- say Y. Read <file:Documentation/filesystems/nfsroot.txt> for
- details. It is likely that in this case, you also want to say Y to
- "Kernel level IP autoconfiguration" so that your box can discover
- its network address at boot time.
-
- Most people say N here.
-
config LOCKD
tristate
If unsure, say N.
-config SUNRPC_BIND34
- bool "Support for rpcbind versions 3 & 4 (EXPERIMENTAL)"
- depends on SUNRPC && EXPERIMENTAL
- default n
- help
- RPC requests over IPv6 networks require support for larger
- addresses when performing an RPC bind. Sun added support for
- IPv6 addressing by creating two new versions of the rpcbind
- protocol (RFC 1833).
-
- This option enables support in the kernel RPC client for
- querying rpcbind servers via versions 3 and 4 of the rpcbind
- protocol. The kernel automatically falls back to version 2
- if a remote rpcbind service does not support versions 3 or 4.
- By themselves, these new versions do not provide support for
- RPC over IPv6, but the new protocol versions are necessary to
- support it.
-
- If unsure, say N to get traditional behavior (version 2 rpcbind
- requests only).
-
config RPCSEC_GSS_KRB5
tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
depends on SUNRPC && EXPERIMENTAL
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
(which is disabled by default). See the file fs/cifs/README
for more details. If unsure, say N.
-config CIFS_UPCALL
- bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
- depends on CIFS_EXPERIMENTAL
- depends on 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_DFS_UPCALL
bool "DFS feature support (EXPERIMENTAL)"
depends on CIFS_EXPERIMENTAL
To compile the coda client support as a module, choose M here: the
module will be called coda.
-config CODA_FS_OLD_API
- bool "Use 96-bit Coda file identifiers"
- depends on CODA_FS
- help
- A new kernel-userspace API had to be introduced for Coda v6.0
- to support larger 128-bit file identifiers as needed by the
- new realms implementation.
-
- However this new API is not backward compatible with older
- clients. If you really need to run the old Coda userspace
- cache manager then say Y.
-
- For most cases you probably want to say N.
-
config AFS_FS
tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
depends on INET && EXPERIMENTAL
projects / linux-2.6-omap-h63xx.git / blobdiff