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linux-stable/fs/Kconfig
Linus Torvalds 7b47a9e7c8 Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull vfs mount infrastructure updates from Al Viro:
 "The rest of core infrastructure; no new syscalls in that pile, but the
  old parts are switched to new infrastructure. At that point
  conversions of individual filesystems can happen independently; some
  are done here (afs, cgroup, procfs, etc.), there's also a large series
  outside of that pile dealing with NFS (quite a bit of option-parsing
  stuff is getting used there - it's one of the most convoluted
  filesystems in terms of mount-related logics), but NFS bits are the
  next cycle fodder.

  It got seriously simplified since the last cycle; documentation is
  probably the weakest bit at the moment - I considered dropping the
  commit introducing Documentation/filesystems/mount_api.txt (cutting
  the size increase by quarter ;-), but decided that it would be better
  to fix it up after -rc1 instead.

  That pile allows to do followup work in independent branches, which
  should make life much easier for the next cycle. fs/super.c size
  increase is unpleasant; there's a followup series that allows to
  shrink it considerably, but I decided to leave that until the next
  cycle"

* 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (41 commits)
  afs: Use fs_context to pass parameters over automount
  afs: Add fs_context support
  vfs: Add some logging to the core users of the fs_context log
  vfs: Implement logging through fs_context
  vfs: Provide documentation for new mount API
  vfs: Remove kern_mount_data()
  hugetlbfs: Convert to fs_context
  cpuset: Use fs_context
  kernfs, sysfs, cgroup, intel_rdt: Support fs_context
  cgroup: store a reference to cgroup_ns into cgroup_fs_context
  cgroup1_get_tree(): separate "get cgroup_root to use" into a separate helper
  cgroup_do_mount(): massage calling conventions
  cgroup: stash cgroup_root reference into cgroup_fs_context
  cgroup2: switch to option-by-option parsing
  cgroup1: switch to option-by-option parsing
  cgroup: take options parsing into ->parse_monolithic()
  cgroup: fold cgroup1_mount() into cgroup1_get_tree()
  cgroup: start switching to fs_context
  ipc: Convert mqueue fs to fs_context
  proc: Add fs_context support to procfs
  ...
2019-03-12 14:08:19 -07:00

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#
# 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"
default y
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"
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/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 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/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.txt> 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 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"
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"
endmenu
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