path: root/fs/Kconfig

#
# File system configuration
#

menu "File systems"

if BLOCK

source "fs/ext2/Kconfig"
source "fs/ext3/Kconfig"
source "fs/ext4/Kconfig"

config FS_XIP
# execute in place
	bool
	depends on EXT2_FS_XIP
	default y

source "fs/jbd/Kconfig"
source "fs/jbd2/Kconfig"

config FS_MBCACHE
# Meta block cache for Extended Attributes (ext2/ext3/ext4)
	tristate
	default y if EXT2_FS=y && EXT2_FS_XATTR
	default y if EXT3_FS=y && EXT3_FS_XATTR
	default y if EXT4_FS=y && EXT4_FS_XATTR
	default m if EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4_FS_XATTR

source "fs/reiserfs/Kconfig"
source "fs/jfs/Kconfig"

config FS_POSIX_ACL
# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs/nfs4)
#
# NOTE: you can implement Posix ACLs without these helpers (XFS does).
# 	Never use this symbol for ifdefs.
#
	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"
source "fs/ocfs2/Kconfig"
source "fs/btrfs/Kconfig"

endif # BLOCK

source "fs/notify/Kconfig"

config QUOTA
	bool "Quota support"
	help
	  If you say Y here, you will be able to set per user limits for disk
	  usage (also called disk quotas). Currently, it works for the
	  ext2, ext3, and reiserfs file system. ext3 also supports journalled
	  quotas for which you don't need to run quotacheck(8) after an unclean
	  shutdown.
	  For further details, read the Quota mini-HOWTO, available from
	  <http://www.tldp.org/docs.html#howto>, or the documentation provided
	  with the quota tools. Probably the quota support is only useful for
	  multi user systems. If unsure, say N.

config QUOTA_NETLINK_INTERFACE
	bool "Report quota messages through netlink interface"
	depends on QUOTA && NET
	help
	  If you say Y here, quota warnings (about exceeding softlimit, reaching
	  hardlimit, etc.) will be reported through netlink interface. If unsure,
	  say Y.

config PRINT_QUOTA_WARNING
	bool "Print quota warnings to console (OBSOLETE)"
	depends on QUOTA
	default y
	help
	  If you say Y here, quota warnings (about exceeding softlimit, reaching
	  hardlimit, etc.) will be printed to the process' controlling terminal.
	  Note that this behavior is currently deprecated and may go away in
	  future. Please use notification via netlink socket instead.

# Generic support for tree structured quota files. Seleted when needed.
config QUOTA_TREE
	 tristate

config QFMT_V1
	tristate "Old quota format support"
	depends on QUOTA
	help
	  This quota format was (is) used by kernels earlier than 2.4.22. If
	  you have quota working and you don't want to convert to new quota
	  format say Y here.

config QFMT_V2
	tristate "Quota format v2 support"
	depends on QUOTA
	select QUOTA_TREE
	help
	  This quota format allows using quotas with 32-bit UIDs/GIDs. If you
	  need this functionality say Y here.

config QUOTACTL
	bool
	depends on XFS_QUOTA || QUOTA
	default y

source "fs/autofs/Kconfig"
source "fs/autofs4/Kconfig"
source "fs/fuse/Kconfig"

config GENERIC_ACL
	bool
	select FS_POSIX_ACL

if BLOCK
menu "CD-ROM/DVD Filesystems"

source "fs/isofs/Kconfig"
source "fs/udf/Kconfig"

endmenu
endif # BLOCK

if BLOCK
menu "DOS/FAT/NT Filesystems"

source "fs/fat/Kconfig"
source "fs/ntfs/Kconfig"

endmenu
endif # BLOCK

menu "Pseudo filesystems"

source "fs/proc/Kconfig"
source "fs/sysfs/Kconfig"

config TMPFS
	bool "Virtual memory file system support (former shm fs)"
	help
	  Tmpfs is a file system which keeps all files in virtual memory.

	  Everything in tmpfs is temporary in the sense that no files will be
	  created on your hard drive. The files live in memory and swap
	  space. If you unmount a tmpfs instance, everything stored therein is
	  lost.

	  See <file:Documentation/filesystems/tmpfs.txt> for details.

config TMPFS_POSIX_ACL
	bool "Tmpfs POSIX Access Control Lists"
	depends on TMPFS
	select GENERIC_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 HUGETLBFS
	bool "HugeTLB file system support"
	depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || \
		   (S390 && 64BIT) || BROKEN
	help
	  hugetlbfs is a filesystem backing for HugeTLB pages, based on
	  ramfs. For architectures that support it, say Y here and read
	  <file:Documentation/vm/hugetlbpage.txt> for details.

	  If unsure, say N.

config HUGETLB_PAGE
	def_bool HUGETLBFS

source "fs/configfs/Kconfig"

endmenu

menuconfig MISC_FILESYSTEMS
	bool "Miscellaneous filesystems"
	default y
	---help---
	  Say Y here to get to see options for various miscellaneous
	  filesystems, such as filesystems that came from other
	  operating systems.

	  This option alone does not add any kernel code.

	  If you say N, all options in this submenu will be skipped and
	  disabled; if unsure, say Y here.

if MISC_FILESYSTEMS

source "fs/adfs/Kconfig"
source "fs/affs/Kconfig"
source "fs/ecryptfs/Kconfig"
source "fs/hfs/Kconfig"
source "fs/hfsplus/Kconfig"

config BEFS_FS
	tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
	depends on BLOCK && EXPERIMENTAL
	select NLS
	help
	  The BeOS File System (BeFS) is the native file system of Be, Inc's
	  BeOS. Notable features include support for arbitrary attributes
	  on files and directories, and database-like indices on selected
	  attributes. (Also note that this driver doesn't make those features
	  available at this time). It is a 64 bit filesystem, so it supports
	  extremely large volumes and files.

	  If you use this filesystem, you should also say Y to at least one
	  of the NLS (native language support) options below.

	  If you don't know what this is about, say N.

	  To compile this as a module, choose M here: the module will be
	  called befs.

config BEFS_DEBUG
	bool "Debug BeFS"
	depends on BEFS_FS
	help
	  If you say Y here, you can use the 'debug' mount option to enable
	  debugging output from the driver.

config BFS_FS
	tristate "BFS file system support (EXPERIMENTAL)"
	depends on BLOCK && EXPERIMENTAL
	help
	  Boot File System (BFS) is a file system used under SCO UnixWare to
	  allow the bootloader access to the kernel image and other important
	  files during the boot process.  It is usually mounted under /stand
	  and corresponds to the slice marked as "STAND" in the UnixWare
	  partition.  You should say Y if you want to read or write the files
	  on your /stand slice from within Linux.  You then also need to say Y
	  to "UnixWare slices support", below.  More information about the BFS
	  file system is contained in the file
	  <file:Documentation/filesystems/bfs.txt>.

	  If you don't know what this is about, say N.

	  To compile this as a module, choose M here: the module will be called
	  bfs.  Note that the file system of your root partition (the one
	  containing the directory /) cannot be compiled as a module.



config EFS_FS
	tristate "EFS file system support (read only) (EXPERIMENTAL)"
	depends on BLOCK && EXPERIMENTAL
	help
	  EFS is an older file system used for non-ISO9660 CD-ROMs and hard
	  disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
	  uses the XFS file system for hard disk partitions however).

	  This implementation only offers read-only access. If you don't know
	  what all this is about, it's safe to say N. For more information
	  about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.

	  To compile the EFS file system support as a module, choose M here: the
	  module will be called efs.

source "fs/jffs2/Kconfig"
# UBIFS File system configuration
source "fs/ubifs/Kconfig"

config CRAMFS
	tristate "Compressed ROM file system support (cramfs)"
	depends on BLOCK
	select ZLIB_INFLATE
	help
	  Saying Y here includes support for CramFs (Compressed ROM File
	  System).  CramFs is designed to be a simple, small, and compressed
	  file system for ROM based embedded systems.  CramFs is read-only,
	  limited to 256MB file systems (with 16MB files), and doesn't support
	  16/32 bits uid/gid, hard links and timestamps.

	  See <file:Documentation/filesystems/cramfs.txt> and
	  <file:fs/cramfs/README> for further information.

	  To compile this as a module, choose M here: the module will be called
	  cramfs.  Note that the root file system (the one containing the
	  directory /) cannot be compiled as a module.

	  If unsure, say N.

config SQUASHFS
	tristate "SquashFS 4.0 - Squashed file system support"
	depends on BLOCK
	select ZLIB_INFLATE
	help
	  Saying Y here includes support for SquashFS 4.0 (a Compressed
	  Read-Only File System).  Squashfs is a highly compressed read-only
	  filesystem for Linux.  It uses zlib compression to compress both
	  files, inodes and directories.  Inodes in the system are very small
	  and all blocks are packed to minimise data overhead. Block sizes
	  greater than 4K are supported up to a maximum of 1 Mbytes (default
	  block size 128K).  SquashFS 4.0 supports 64 bit filesystems and files
	  (larger than 4GB), full uid/gid information, hard links and
	  timestamps.  

	  Squashfs is intended for general read-only filesystem use, for
	  archival use (i.e. in cases where a .tar.gz file may be used), and in
	  embedded systems where low overhead is needed.  Further information
	  and tools are available from http://squashfs.sourceforge.net.

	  If you want to compile this as a module ( = code which can be
	  inserted in and removed from the running kernel whenever you want),
	  say M here and read <file:Documentation/modules.txt>.  The module
	  will be called squashfs.  Note that the root file system (the one
	  containing the directory /) cannot be compiled as a module.

	  If unsure, say N.

config SQUASHFS_EMBEDDED

	bool "Additional option for memory-constrained systems" 
	depends on SQUASHFS
	default n
	help
	  Saying