LXR linux/fs/Kconfig

   1#
   2# File system configuration
   3#
   4
   5menu "File systems"
   6
   7# Use unaligned word dcache accesses
   8config DCACHE_WORD_ACCESS
   9       bool
  10
  11if BLOCK
  12
  13source "fs/ext2/Kconfig"
  14source "fs/ext4/Kconfig"
  15source "fs/jbd2/Kconfig"
  16
  17config FS_MBCACHE
  18# Meta block cache for Extended Attributes (ext2/ext3/ext4)
  19        tristate
  20        default y if EXT2_FS=y && EXT2_FS_XATTR
  21        default y if EXT4_FS=y
  22        default m if EXT2_FS_XATTR || EXT4_FS
  23
  24source "fs/reiserfs/Kconfig"
  25source "fs/jfs/Kconfig"
  26
  27source "fs/xfs/Kconfig"
  28source "fs/gfs2/Kconfig"
  29source "fs/ocfs2/Kconfig"
  30source "fs/btrfs/Kconfig"
  31source "fs/nilfs2/Kconfig"
  32source "fs/f2fs/Kconfig"
  33
  34config FS_DAX
  35        bool "Direct Access (DAX) support"
  36        depends on MMU
  37        depends on !(ARM || MIPS || SPARC)
  38        help
  39          Direct Access (DAX) can be used on memory-backed block devices.
  40          If the block device supports DAX and the filesystem supports DAX,
  41          then you can avoid using the pagecache to buffer I/Os.  Turning
  42          on this option will compile in support for DAX; you will need to
  43          mount the filesystem using the -o dax option.
  44
  45          If you do not have a block device that is capable of using this,
  46          or if unsure, say N.  Saying Y will increase the size of the kernel
  47          by about 5kB.
  48
  49config FS_DAX_PMD
  50        bool
  51        default FS_DAX
  52        depends on FS_DAX
  53        depends on ZONE_DEVICE
  54        depends on TRANSPARENT_HUGEPAGE
  55
  56endif # BLOCK
  57
  58# Posix ACL utility routines
  59#
  60# Note: Posix ACLs can be implemented without these helpers.  Never use
  61# this symbol for ifdefs in core code.
  62#
  63config FS_POSIX_ACL
  64        def_bool n
  65
  66config EXPORTFS
  67        tristate
  68
  69config FILE_LOCKING
  70        bool "Enable POSIX file locking API" if EXPERT
  71        default y
  72        help
  73          This option enables standard file locking support, required
  74          for filesystems like NFS and for the flock() system
  75          call. Disabling this option saves about 11k.
  76
  77config MANDATORY_FILE_LOCKING
  78        bool "Enable Mandatory file locking"
  79        depends on FILE_LOCKING
  80        default y
  81        help
  82          This option enables files appropriately marked files on appropriely
  83          mounted filesystems to support mandatory locking.
  84
  85          To the best of my knowledge this is dead code that no one cares about.
  86
  87source "fs/crypto/Kconfig"
  88
  89source "fs/notify/Kconfig"
  90
  91source "fs/quota/Kconfig"
  92
  93source "fs/autofs4/Kconfig"
  94source "fs/fuse/Kconfig"
  95source "fs/overlayfs/Kconfig"
  96
  97menu "Caches"
  98
  99source "fs/fscache/Kconfig"
 100source "fs/cachefiles/Kconfig"
 101
 102endmenu
 103
 104if BLOCK
 105menu "CD-ROM/DVD Filesystems"
 106
 107source "fs/isofs/Kconfig"
 108source "fs/udf/Kconfig"
 109
 110endmenu
 111endif # BLOCK
 112
 113if BLOCK
 114menu "DOS/FAT/NT Filesystems"
 115
 116source "fs/fat/Kconfig"
 117source "fs/ntfs/Kconfig"
 118
 119endmenu
 120endif # BLOCK
 121
 122menu "Pseudo filesystems"
 123
 124source "fs/proc/Kconfig"
 125source "fs/kernfs/Kconfig"
 126source "fs/sysfs/Kconfig"
 127
 128config TMPFS
 129        bool "Tmpfs virtual memory file system support (former shm fs)"
 130        depends on SHMEM
 131        help
 132          Tmpfs is a file system which keeps all files in virtual memory.
 133
 134          Everything in tmpfs is temporary in the sense that no files will be
 135          created on your hard drive. The files live in memory and swap
 136          space. If you unmount a tmpfs instance, everything stored therein is
 137          lost.
 138
 139          See <file:Documentation/filesystems/tmpfs.txt> for details.
 140
 141config TMPFS_POSIX_ACL
 142        bool "Tmpfs POSIX Access Control Lists"
 143        depends on TMPFS
 144        select TMPFS_XATTR
 145        select FS_POSIX_ACL
 146        help
 147          POSIX Access Control Lists (ACLs) support additional access rights
 148          for users and groups beyond the standard owner/group/world scheme,
 149          and this option selects support for ACLs specifically for tmpfs
 150          filesystems.
 151
 152          If you've selected TMPFS, it's possible that you'll also need
 153          this option as there are a number of Linux distros that require
 154          POSIX ACL support under /dev for certain features to work properly.
 155          For example, some distros need this feature for ALSA-related /dev
 156          files for sound to work properly.  In short, if you're not sure,
 157          say Y.
 158
 159          To learn more about Access Control Lists, visit the POSIX ACLs for
 160          Linux website <http://acl.bestbits.at/>.
 161
 162config TMPFS_XATTR
 163        bool "Tmpfs extended attributes"
 164        depends on TMPFS
 165        default n
 166        help
 167          Extended attributes are name:value pairs associated with inodes by
 168          the kernel or by users (see the attr(5) manual page, or visit
 169          <http://acl.bestbits.at/> for details).
 170
 171          Currently this enables support for the trusted.* and
 172          security.* namespaces.
 173
 174          You need this for POSIX ACL support on tmpfs.
 175
 176          If unsure, say N.
 177
 178config HUGETLBFS
 179        bool "HugeTLB file system support"
 180        depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
 181                   SYS_SUPPORTS_HUGETLBFS || BROKEN
 182        help
 183          hugetlbfs is a filesystem backing for HugeTLB pages, based on
 184          ramfs. For architectures that support it, say Y here and read
 185          <file:Documentation/vm/hugetlbpage.txt> for details.
 186
 187          If unsure, say N.
 188
 189config HUGETLB_PAGE
 190        def_bool HUGETLBFS
 191
 192source "fs/configfs/Kconfig"
 193source "fs/efivarfs/Kconfig"
 194
 195endmenu
 196
 197menuconfig MISC_FILESYSTEMS
 198        bool "Miscellaneous filesystems"
 199        default y
 200        ---help---
 201          Say Y here to get to see options for various miscellaneous
 202          filesystems, such as filesystems that came from other
 203          operating systems.
 204
 205          This option alone does not add any kernel code.
 206
 207          If you say N, all options in this submenu will be skipped and
 208          disabled; if unsure, say Y here.
 209
 210if MISC_FILESYSTEMS
 211
 212source "fs/orangefs/Kconfig"
 213source "fs/adfs/Kconfig"
 214source "fs/affs/Kconfig"
 215source "fs/ecryptfs/Kconfig"
 216source "fs/hfs/Kconfig"
 217source "fs/hfsplus/Kconfig"
 218source "fs/befs/Kconfig"
 219source "fs/bfs/Kconfig"
 220source "fs/efs/Kconfig"
 221source "fs/jffs2/Kconfig"
 222# UBIFS File system configuration
 223source "fs/ubifs/Kconfig"
 224source "fs/logfs/Kconfig"
 225source "fs/cramfs/Kconfig"
 226source "fs/squashfs/Kconfig"
 227source "fs/freevxfs/Kconfig"
 228source "fs/minix/Kconfig"
 229source "fs/omfs/Kconfig"
 230source "fs/hpfs/Kconfig"
 231source "fs/qnx4/Kconfig"
 232source "fs/qnx6/Kconfig"
 233source "fs/romfs/Kconfig"
 234source "fs/pstore/Kconfig"
 235source "fs/sysv/Kconfig"
 236source "fs/ufs/Kconfig"
 237source "fs/exofs/Kconfig"
 238
 239endif # MISC_FILESYSTEMS
 240
 241source "fs/exofs/Kconfig.ore"
 242
 243menuconfig NETWORK_FILESYSTEMS
 244        bool "Network File Systems"
 245        default y
 246        depends on NET
 247        ---help---
 248          Say Y here to get to see options for network filesystems and
 249          filesystem-related networking code, such as NFS daemon and
 250          RPCSEC security modules.
 251
 252          This option alone does not add any kernel code.
 253
 254          If you say N, all options in this submenu will be skipped and
 255          disabled; if unsure, say Y here.
 256
 257if NETWORK_FILESYSTEMS
 258
 259source "fs/nfs/Kconfig"
 260source "fs/nfsd/Kconfig"
 261
 262config GRACE_PERIOD
 263        tristate
 264
 265config LOCKD
 266        tristate
 267        depends on FILE_LOCKING
 268        select GRACE_PERIOD
 269
 270config LOCKD_V4
 271        bool
 272        depends on NFSD_V3 || NFS_V3
 273        depends on FILE_LOCKING
 274        default y
 275
 276config NFS_ACL_SUPPORT
 277        tristate
 278        select FS_POSIX_ACL
 279
 280config NFS_COMMON
 281        bool
 282        depends on NFSD || NFS_FS || LOCKD
 283        default y
 284
 285source "net/sunrpc/Kconfig"
 286source "fs/ceph/Kconfig"
 287source "fs/cifs/Kconfig"
 288source "fs/ncpfs/Kconfig"
 289source "fs/coda/Kconfig"
 290source "fs/afs/Kconfig"
 291source "fs/9p/Kconfig"
 292
 293endif # NETWORK_FILESYSTEMS
 294
 295source "fs/nls/Kconfig"
 296source "fs/dlm/Kconfig"
 297
 298endmenu
 299