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

menu "File systems"

# Use unaligned word dcache accesses
config CONFIG_DCACHE_WORD_ACCESS
       bool

config 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 CONFIG_BLOCK

config CONFIG_FS_IOMAP
	bool

source "fs/ext2/Kconfig"
source "fs/ext4/Kconfig"
source "fs/jbd2/Kconfig"

config CONFIG_FS_MBCACHE
# Meta block cache for Extended Attributes (ext2/ext3/ext4)
	tristate
	default y if CONFIG_EXT2_FS=y && CONFIG_EXT2_FS_XATTR
	default y if CONFIG_EXT4_FS=y
	default m if CONFIG_EXT2_FS_XATTR || CONFIG_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"

config CONFIG_FS_DAX
	bool "Direct Access (DAX) support"
	depends on CONFIG_MMU
	depends on !(CONFIG_ARM || CONFIG_MIPS || CONFIG_SPARC)
	select CONFIG_DEV_PAGEMAP_OPS if (CONFIG_ZONE_DEVICE && !CONFIG_FS_DAX_LIMITED)
	select CONFIG_FS_IOMAP
	select CONFIG_DAX
	help
	  Direct Access (CONFIG_DAX) can be used on memory-backed block devices.
	  If the block device supports CONFIG_DAX and the filesystem supports CONFIG_DAX,
	  then you can avoid using the pagecache to buffer I/Os.  Turning
	  on this option will compile in support for CONFIG_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 CONFIG_FS_DAX_PMD
	bool
	default CONFIG_FS_DAX
	depends on CONFIG_FS_DAX
	depends on CONFIG_ZONE_DEVICE
	depends on CONFIG_TRANSPARENT_HUGEPAGE

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

endif # CONFIG_BLOCK

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

config CONFIG_EXPORTFS
	tristate

config 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 CONFIG_FILE_LOCKING
	bool "Enable POSIX file locking API" if CONFIG_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 CONFIG_MANDATORY_FILE_LOCKING
	bool "Enable Mandatory file locking"
	depends on CONFIG_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"

menu "Caches"

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

endmenu

if CONFIG_BLOCK
menu "CD-ROM/DVD Filesystems"

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

endmenu
endif # CONFIG_BLOCK

if CONFIG_BLOCK
menu "DOS/FAT/NT Filesystems"

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

endmenu
endif # CONFIG_BLOCK

menu "Pseudo filesystems"

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

config CONFIG_TMPFS
	bool "Tmpfs virtual memory file system support (former shm fs)"
	depends on CONFIG_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.txt> for details.

config CONFIG_TMPFS_POSIX_ACL
	bool "Tmpfs POSIX Access Control Lists"
	depends on CONFIG_TMPFS
	select CONFIG_TMPFS_XATTR
	select CONFIG_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 CONFIG_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 CONFIG_TMPFS_XATTR
	bool "Tmpfs extended attributes"
	depends on CONFIG_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 CONFIG_HUGETLBFS
	bool "HugeTLB file system support"
	depends on CONFIG_X86 || CONFIG_IA64 || CONFIG_SPARC64 || (CONFIG_S390 && CONFIG_64BIT) || \
		   CONFIG_SYS_SUPPORTS_HUGETLBFS || CONFIG_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 CONFIG_HUGETLB_PAGE
	def_bool CONFIG_HUGETLBFS

config CONFIG_MEMFD_CREATE
	def_bool CONFIG_TMPFS || CONFIG_HUGETLBFS

config CONFIG_ARCH_HAS_GIGANTIC_PAGE
	bool

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

endmenu

menuconfig CONFIG_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 CONFIG_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"

endif # CONFIG_MISC_FILESYSTEMS

menuconfig CONFIG_NETWORK_FILESYSTEMS
	bool "Network File Systems"
	default y
	depends on CONFIG_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 CONFIG_NETWORK_FILESYSTEMS

source "fs/nfs/Kconfig"
source "fs/nfsd/Kconfig"

config CONFIG_GRACE_PERIOD
	tristate

config CONFIG_LOCKD
	tristate
	depends on CONFIG_FILE_LOCKING
	select CONFIG_GRACE_PERIOD

config CONFIG_LOCKD_V4
	bool
	depends on CONFIG_NFSD_V3 || CONFIG_NFS_V3
	depends on CONFIG_FILE_LOCKING
	default y

config CONFIG_NFS_ACL_SUPPORT
	tristate
	select CONFIG_FS_POSIX_ACL

config CONFIG_NFS_COMMON
	bool
	depends on CONFIG_NFSD || CONFIG_NFS_FS || CONFIG_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 # CONFIG_NETWORK_FILESYSTEMS

source "fs/nls/Kconfig"
source "fs/dlm/Kconfig"
source "fs/unicode/Kconfig"

endmenu