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# SPDX-License-Identifier: GPL-2.0-only
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#
# File system configuration
#

menu "File systems"

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# Use unaligned word dcache accesses
config DCACHE_WORD_ACCESS
       bool

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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.

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if BLOCK

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config FS_IOMAP
	bool

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source "fs/ext2/Kconfig"
source "fs/ext4/Kconfig"
source "fs/jbd2/Kconfig"
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config FS_MBCACHE
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# Meta block cache for Extended Attributes (ext2/ext3/ext4)
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	tristate
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	default y if EXT2_FS=y && EXT2_FS_XATTR
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	default y if EXT4_FS=y
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	default m if EXT2_FS_XATTR || EXT4_FS
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source "fs/reiserfs/Kconfig"
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source "fs/jfs/Kconfig"
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source "fs/xfs/Kconfig"
source "fs/gfs2/Kconfig"
source "fs/ocfs2/Kconfig"
source "fs/btrfs/Kconfig"
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source "fs/nilfs2/Kconfig"
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source "fs/f2fs/Kconfig"
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source "fs/zonefs/Kconfig"
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config FS_DAX
	bool "Direct Access (DAX) support"
	depends on MMU
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	depends on !(ARM || MIPS || SPARC)
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	select DEV_PAGEMAP_OPS if (ZONE_DEVICE && !FS_DAX_LIMITED)
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	select FS_IOMAP
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	select DAX
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	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.

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config FS_DAX_PMD
	bool
	default FS_DAX
	depends on FS_DAX
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	depends on ZONE_DEVICE
	depends on TRANSPARENT_HUGEPAGE
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# 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

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endif # BLOCK

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# 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

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config EXPORTFS
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	tristate
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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.

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config FILE_LOCKING
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	bool "Enable POSIX file locking API" if EXPERT
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	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.

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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.

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source "fs/crypto/Kconfig"

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source "fs/verity/Kconfig"

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source "fs/notify/Kconfig"
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source "fs/quota/Kconfig"
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source "fs/autofs/Kconfig"
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source "fs/fuse/Kconfig"
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source "fs/overlayfs/Kconfig"
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menu "Caches"

source "fs/fscache/Kconfig"
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source "fs/cachefiles/Kconfig"
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endmenu

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if BLOCK
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menu "CD-ROM/DVD Filesystems"

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source "fs/isofs/Kconfig"
source "fs/udf/Kconfig"
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endmenu
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endif # BLOCK
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if BLOCK
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menu "DOS/FAT/NT Filesystems"

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source "fs/fat/Kconfig"
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source "fs/ntfs/Kconfig"
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endmenu
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endif # BLOCK
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menu "Pseudo filesystems"

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source "fs/proc/Kconfig"
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source "fs/kernfs/Kconfig"
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source "fs/sysfs/Kconfig"
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config TMPFS
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	bool "Tmpfs virtual memory file system support (former shm fs)"
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	depends on SHMEM
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	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.

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config TMPFS_POSIX_ACL
	bool "Tmpfs POSIX Access Control Lists"
	depends on TMPFS
	select TMPFS_XATTR
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	select FS_POSIX_ACL
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	help
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	  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.
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config TMPFS_XATTR
	bool "Tmpfs extended attributes"
	depends on TMPFS
	default n
	help
	  Extended attributes are name:value pairs associated with inodes by
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	  the kernel or by users (see the attr(5) manual page for details).
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	  Currently this enables support for the trusted.* and
	  security.* namespaces.

	  You need this for POSIX ACL support on tmpfs.

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	  If unsure, say N.
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config HUGETLBFS
	bool "HugeTLB file system support"
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	depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
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		   SYS_SUPPORTS_HUGETLBFS || BROKEN
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	help
	  hugetlbfs is a filesystem backing for HugeTLB pages, based on
	  ramfs. For architectures that support it, say Y here and read
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	  <file:Documentation/admin-guide/mm/hugetlbpage.rst> for details.
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	  If unsure, say N.
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config HUGETLB_PAGE
	def_bool HUGETLBFS

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config MEMFD_CREATE
	def_bool TMPFS || HUGETLBFS

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config ARCH_HAS_GIGANTIC_PAGE
	bool

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source "fs/configfs/Kconfig"
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source "fs/efivarfs/Kconfig"
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endmenu

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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
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source "fs/orangefs/Kconfig"
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source "fs/adfs/Kconfig"
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source "fs/affs/Kconfig"
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source "fs/ecryptfs/Kconfig"
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source "fs/hfs/Kconfig"
source "fs/hfsplus/Kconfig"
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source "fs/befs/Kconfig"
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source "fs/bfs/Kconfig"
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source "fs/efs/Kconfig"
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source "fs/jffs2/Kconfig"
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# UBIFS File system configuration
source "fs/ubifs/Kconfig"
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source "fs/cramfs/Kconfig"
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source "fs/squashfs/Kconfig"
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source "fs/freevxfs/Kconfig"
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source "fs/minix/Kconfig"
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source "fs/omfs/Kconfig"
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source "fs/hpfs/Kconfig"
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source "fs/qnx4/Kconfig"
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source "fs/qnx6/Kconfig"
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source "fs/romfs/Kconfig"
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source "fs/pstore/Kconfig"
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source "fs/sysv/Kconfig"
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source "fs/ufs/Kconfig"
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source "fs/erofs/Kconfig"
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source "fs/vboxsf/Kconfig"
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endif # MISC_FILESYSTEMS
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menuconfig NETWORK_FILESYSTEMS
	bool "Network File Systems"
	default y
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	depends on NET
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	---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.
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	  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
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source "fs/nfs/Kconfig"
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source "fs/nfsd/Kconfig"
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config GRACE_PERIOD
	tristate

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config LOCKD
	tristate
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	depends on FILE_LOCKING
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	select GRACE_PERIOD
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config LOCKD_V4
	bool
	depends on NFSD_V3 || NFS_V3
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	depends on FILE_LOCKING
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	default y

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config NFS_ACL_SUPPORT
	tristate
	select FS_POSIX_ACL

config NFS_COMMON
	bool
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	depends on NFSD || NFS_FS || LOCKD
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	default y

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source "net/sunrpc/Kconfig"
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source "fs/ceph/Kconfig"
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source "fs/cifs/Kconfig"
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source "fs/coda/Kconfig"
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source "fs/afs/Kconfig"
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source "fs/9p/Kconfig"
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endif # NETWORK_FILESYSTEMS
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source "fs/nls/Kconfig"
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source "fs/dlm/Kconfig"
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source "fs/unicode/Kconfig"
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config IO_WQ
	bool

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endmenu