# SPDX-License-Identifier: GPL-2.0-only

  #
  # File system configuration
  #
  
  menu "File systems"

  # Use unaligned word dcache accesses
  config DCACHE_WORD_ACCESS
         bool

  config VALIDATE_FS_PARSER
  	bool "Validate filesystem parameter description"

  	help
  	  Enable this to perform validation of the parameter description for a
  	  filesystem when it is registered.

  if BLOCK

  config FS_IOMAP
  	bool

  source "fs/ext2/Kconfig"

  source "fs/ext4/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 EXT4_FS=y

  	default m if EXT2_FS_XATTR || EXT4_FS

  source "fs/reiserfs/Kconfig"

  source "fs/jfs/Kconfig"

  source "fs/xfs/Kconfig"
  source "fs/gfs2/Kconfig"
  source "fs/ocfs2/Kconfig"
  source "fs/btrfs/Kconfig"

  source "fs/nilfs2/Kconfig"

  source "fs/f2fs/Kconfig"

  source "fs/zonefs/Kconfig"

  config FS_DAX
  	bool "Direct Access (DAX) support"
  	depends on MMU

  	depends on !(ARM || MIPS || SPARC)

  	select DEV_PAGEMAP_OPS if (ZONE_DEVICE && !FS_DAX_LIMITED)

  	select FS_IOMAP

  	select DAX

  	help
  	  Direct Access (DAX) can be used on memory-backed block devices.
  	  If the block device supports DAX and the filesystem supports DAX,
  	  then you can avoid using the pagecache to buffer I/Os.  Turning
  	  on this option will compile in support for DAX; you will need to
  	  mount the filesystem using the -o dax option.
  
  	  If you do not have a block device that is capable of using this,
  	  or if unsure, say N.  Saying Y will increase the size of the kernel
  	  by about 5kB.

  config FS_DAX_PMD
  	bool
  	default FS_DAX
  	depends on FS_DAX

  	depends on ZONE_DEVICE
  	depends on TRANSPARENT_HUGEPAGE

  # Selected by DAX drivers that do not expect filesystem DAX to support
  # get_user_pages() of DAX mappings. I.e. "limited" indicates no support
  # for fork() of processes with MAP_SHARED mappings or support for
  # direct-I/O to a DAX mapping.
  config FS_DAX_LIMITED
  	bool

  endif # BLOCK

  # Posix ACL utility routines
  #
  # Note: Posix ACLs can be implemented without these helpers.  Never use
  # this symbol for ifdefs in core code.
  #
  config FS_POSIX_ACL
  	def_bool n

  config EXPORTFS

  	tristate

  config EXPORTFS_BLOCK_OPS
  	bool "Enable filesystem export operations for block IO"
  	help
  	  This option enables the export operations for a filesystem to support
  	  external block IO.

  config FILE_LOCKING

  	bool "Enable POSIX file locking API" if EXPERT

  	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.

  config MANDATORY_FILE_LOCKING
  	bool "Enable Mandatory file locking"
  	depends on FILE_LOCKING
  	default y
  	help
  	  This option enables files appropriately marked files on appropriely
  	  mounted filesystems to support mandatory locking.
  
  	  To the best of my knowledge this is dead code that no one cares about.

  source "fs/crypto/Kconfig"

  source "fs/verity/Kconfig"

  source "fs/notify/Kconfig"

  source "fs/quota/Kconfig"

  source "fs/autofs/Kconfig"

  source "fs/fuse/Kconfig"

  source "fs/overlayfs/Kconfig"

  source "fs/incfs/Kconfig"

  menu "Caches"
  
  source "fs/fscache/Kconfig"

  source "fs/cachefiles/Kconfig"

  
  endmenu

  if BLOCK

  menu "CD-ROM/DVD Filesystems"

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

  
  endmenu

  endif # BLOCK

  if BLOCK

  menu "DOS/FAT/EXFAT/NT Filesystems"

  source "fs/fat/Kconfig"

  source "fs/exfat/Kconfig"

  source "fs/ntfs/Kconfig"

  
  endmenu

  endif # BLOCK

  
  menu "Pseudo filesystems"

  source "fs/proc/Kconfig"

  source "fs/kernfs/Kconfig"

  source "fs/sysfs/Kconfig"

  config TMPFS

  	bool "Tmpfs virtual memory file system support (former shm fs)"

  	depends on SHMEM

  	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.rst> for details.

  config TMPFS_POSIX_ACL
  	bool "Tmpfs POSIX Access Control Lists"
  	depends on TMPFS
  	select TMPFS_XATTR

  	select FS_POSIX_ACL

  	help

  	  POSIX Access Control Lists (ACLs) support additional access rights
  	  for users and groups beyond the standard owner/group/world scheme,
  	  and this option selects support for ACLs specifically for tmpfs
  	  filesystems.
  
  	  If you've selected TMPFS, it's possible that you'll also need
  	  this option as there are a number of Linux distros that require
  	  POSIX ACL support under /dev for certain features to work properly.
  	  For example, some distros need this feature for ALSA-related /dev
  	  files for sound to work properly.  In short, if you're not sure,
  	  say Y.

  config TMPFS_XATTR
  	bool "Tmpfs extended attributes"
  	depends on TMPFS
  	default n
  	help
  	  Extended attributes are name:value pairs associated with inodes by

  	  the kernel or by users (see the attr(5) manual page for details).

  
  	  Currently this enables support for the trusted.* and
  	  security.* namespaces.

  	  You need this for POSIX ACL support on tmpfs.

  	  If unsure, say N.

  config TMPFS_INODE64
  	bool "Use 64-bit ino_t by default in tmpfs"
  	depends on TMPFS && 64BIT
  	default n
  	help
  	  tmpfs has historically used only inode numbers as wide as an unsigned
  	  int. In some cases this can cause wraparound, potentially resulting
  	  in multiple files with the same inode number on a single device. This
  	  option makes tmpfs use the full width of ino_t by default, without
  	  needing to specify the inode64 option when mounting.
  
  	  But if a long-lived tmpfs is to be accessed by 32-bit applications so
  	  ancient that opening a file larger than 2GiB fails with EINVAL, then
  	  the INODE64 config option and inode64 mount option risk operations
  	  failing with EOVERFLOW once 33-bit inode numbers are reached.
  
  	  To override this configured default, use the inode32 or inode64
  	  option when mounting.
  
  	  If unsure, say N.

  config HUGETLBFS
  	bool "HugeTLB file system support"

  	depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \

  		   SYS_SUPPORTS_HUGETLBFS || 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/admin-guide/mm/hugetlbpage.rst> for details.

  
  	  If unsure, say N.

  
  config HUGETLB_PAGE
  	def_bool HUGETLBFS

  config MEMFD_CREATE
  	def_bool TMPFS || HUGETLBFS

  config ARCH_HAS_GIGANTIC_PAGE
  	bool

  source "fs/configfs/Kconfig"

  source "fs/efivarfs/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/orangefs/Kconfig"

  source "fs/adfs/Kconfig"

  source "fs/affs/Kconfig"

  source "fs/ecryptfs/Kconfig"

  source "fs/hfs/Kconfig"
  source "fs/hfsplus/Kconfig"

  source "fs/befs/Kconfig"

  source "fs/bfs/Kconfig"

  source "fs/efs/Kconfig"

  source "fs/jffs2/Kconfig"

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

  source "fs/cramfs/Kconfig"

  source "fs/squashfs/Kconfig"

  source "fs/freevxfs/Kconfig"

  source "fs/minix/Kconfig"

  source "fs/omfs/Kconfig"

  source "fs/hpfs/Kconfig"

  source "fs/qnx4/Kconfig"

  source "fs/qnx6/Kconfig"

  source "fs/romfs/Kconfig"

  source "fs/pstore/Kconfig"

  source "fs/sysv/Kconfig"

  source "fs/ufs/Kconfig"

  source "fs/erofs/Kconfig"

  source "fs/vboxsf/Kconfig"

  endif # MISC_FILESYSTEMS

  menuconfig NETWORK_FILESYSTEMS
  	bool "Network File Systems"
  	default y

  	depends on NET

  	help

  	  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
  	  disabled; if unsure, say Y here.
  
  if NETWORK_FILESYSTEMS

  source "fs/nfs/Kconfig"

  source "fs/nfsd/Kconfig"

  config GRACE_PERIOD
  	tristate

  config LOCKD
  	tristate

  	depends on FILE_LOCKING

  	select GRACE_PERIOD

  
  config LOCKD_V4
  	bool
  	depends on NFSD_V3 || NFS_V3

  	depends on FILE_LOCKING

  	default y

  config NFS_ACL_SUPPORT
  	tristate
  	select FS_POSIX_ACL
  
  config NFS_COMMON
  	bool

  	depends on NFSD || NFS_FS || LOCKD

  	default y

  source "net/sunrpc/Kconfig"

  source "fs/ceph/Kconfig"

  source "fs/cifs/Kconfig"

  source "fs/coda/Kconfig"

  source "fs/afs/Kconfig"

  source "fs/9p/Kconfig"

  endif # NETWORK_FILESYSTEMS

  source "fs/nls/Kconfig"

  source "fs/dlm/Kconfig"

  source "fs/unicode/Kconfig"

  config IO_WQ
  	bool

  endmenu