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
  49endif # BLOCK
  50
  51# Posix ACL utility routines
  52#
  53# Note: Posix ACLs can be implemented without these helpers.  Never use
  54# this symbol for ifdefs in core code.
  55#
  56config FS_POSIX_ACL
  57        def_bool n
  58
  59config EXPORTFS
  60        tristate
  61
  62config FILE_LOCKING
  63        bool "Enable POSIX file locking API" if EXPERT
  64        default y
  65        help
  66          This option enables standard file locking support, required
  67          for filesystems like NFS and for the flock() system
  68          call. Disabling this option saves about 11k.
  69
  70source "fs/notify/Kconfig"
  71
  72source "fs/quota/Kconfig"
  73
  74source "fs/autofs4/Kconfig"
  75source "fs/fuse/Kconfig"
  76source "fs/overlayfs/Kconfig"
  77
  78menu "Caches"
  79
  80source "fs/fscache/Kconfig"
  81source "fs/cachefiles/Kconfig"
  82
  83endmenu
  84
  85if BLOCK
  86menu "CD-ROM/DVD Filesystems"
  87
  88source "fs/isofs/Kconfig"
  89source "fs/udf/Kconfig"
  90
  91endmenu
  92endif # BLOCK
  93
  94if BLOCK
  95menu "DOS/FAT/NT Filesystems"
  96
  97source "fs/fat/Kconfig"
  98source "fs/ntfs/Kconfig"
  99
 100endmenu
 101endif # BLOCK
 102
 103menu "Pseudo filesystems"
 104
 105source "fs/proc/Kconfig"
 106source "fs/kernfs/Kconfig"
 107source "fs/sysfs/Kconfig"
 108
 109config TMPFS
 110        bool "Tmpfs virtual memory file system support (former shm fs)"
 111        depends on SHMEM
 112        help
 113          Tmpfs is a file system which keeps all files in virtual memory.
 114
 115          Everything in tmpfs is temporary in the sense that no files will be
 116          created on your hard drive. The files live in memory and swap
 117          space. If you unmount a tmpfs instance, everything stored therein is
 118          lost.
 119
 120          See <file:Documentation/filesystems/tmpfs.txt> for details.
 121
 122config TMPFS_POSIX_ACL
 123        bool "Tmpfs POSIX Access Control Lists"
 124        depends on TMPFS
 125        select TMPFS_XATTR
 126        select FS_POSIX_ACL
 127        help
 128          POSIX Access Control Lists (ACLs) support additional access rights
 129          for users and groups beyond the standard owner/group/world scheme,
 130          and this option selects support for ACLs specifically for tmpfs
 131          filesystems.
 132
 133          If you've selected TMPFS, it's possible that you'll also need
 134          this option as there are a number of Linux distros that require
 135          POSIX ACL support under /dev for certain features to work properly.
 136          For example, some distros need this feature for ALSA-related /dev
 137          files for sound to work properly.  In short, if you're not sure,
 138          say Y.
 139
 140          To learn more about Access Control Lists, visit the POSIX ACLs for
 141          Linux website <http://acl.bestbits.at/>.
 142
 143config TMPFS_XATTR
 144        bool "Tmpfs extended attributes"
 145        depends on TMPFS
 146        default n
 147        help
 148          Extended attributes are name:value pairs associated with inodes by
 149          the kernel or by users (see the attr(5) manual page, or visit
 150          <http://acl.bestbits.at/> for details).
 151
 152          Currently this enables support for the trusted.* and
 153          security.* namespaces.
 154
 155          You need this for POSIX ACL support on tmpfs.
 156
 157          If unsure, say N.
 158
 159config HUGETLBFS
 160        bool "HugeTLB file system support"
 161        depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
 162                   SYS_SUPPORTS_HUGETLBFS || BROKEN
 163        help
 164          hugetlbfs is a filesystem backing for HugeTLB pages, based on
 165          ramfs. For architectures that support it, say Y here and read
 166          <file:Documentation/vm/hugetlbpage.txt> for details.
 167
 168          If unsure, say N.
 169
 170config HUGETLB_PAGE
 171        def_bool HUGETLBFS
 172
 173source "fs/configfs/Kconfig"
 174source "fs/efivarfs/Kconfig"
 175
 176endmenu
 177
 178menuconfig MISC_FILESYSTEMS
 179        bool "Miscellaneous filesystems"
 180        default y
 181        ---help---
 182          Say Y here to get to see options for various miscellaneous
 183          filesystems, such as filesystems that came from other
 184          operating systems.
 185
 186          This option alone does not add any kernel code.
 187
 188          If you say N, all options in this submenu will be skipped and
 189          disabled; if unsure, say Y here.
 190
 191if MISC_FILESYSTEMS
 192
 193source "fs/adfs/Kconfig"
 194source "fs/affs/Kconfig"
 195source "fs/ecryptfs/Kconfig"
 196source "fs/hfs/Kconfig"
 197source "fs/hfsplus/Kconfig"
 198source "fs/befs/Kconfig"
 199source "fs/bfs/Kconfig"
 200source "fs/efs/Kconfig"
 201source "fs/jffs2/Kconfig"
 202# UBIFS File system configuration
 203source "fs/ubifs/Kconfig"
 204source "fs/logfs/Kconfig"
 205source "fs/cramfs/Kconfig"
 206source "fs/squashfs/Kconfig"
 207source "fs/freevxfs/Kconfig"
 208source "fs/minix/Kconfig"
 209source "fs/omfs/Kconfig"
 210source "fs/hpfs/Kconfig"
 211source "fs/qnx4/Kconfig"
 212source "fs/qnx6/Kconfig"
 213source "fs/romfs/Kconfig"
 214source "fs/pstore/Kconfig"
 215source "fs/sysv/Kconfig"
 216source "fs/ufs/Kconfig"
 217source "fs/exofs/Kconfig"
 218
 219endif # MISC_FILESYSTEMS
 220
 221source "fs/exofs/Kconfig.ore"
 222
 223menuconfig NETWORK_FILESYSTEMS
 224        bool "Network File Systems"
 225        default y
 226        depends on NET
 227        ---help---
 228          Say Y here to get to see options for network filesystems and
 229          filesystem-related networking code, such as NFS daemon and
 230          RPCSEC security modules.
 231
 232          This option alone does not add any kernel code.
 233
 234          If you say N, all options in this submenu will be skipped and
 235          disabled; if unsure, say Y here.
 236
 237if NETWORK_FILESYSTEMS
 238
 239source "fs/nfs/Kconfig"
 240source "fs/nfsd/Kconfig"
 241
 242config GRACE_PERIOD
 243        tristate
 244
 245config LOCKD
 246        tristate
 247        depends on FILE_LOCKING
 248        select GRACE_PERIOD
 249
 250config LOCKD_V4
 251        bool
 252        depends on NFSD_V3 || NFS_V3
 253        depends on FILE_LOCKING
 254        default y
 255
 256config NFS_ACL_SUPPORT
 257        tristate
 258        select FS_POSIX_ACL
 259
 260config NFS_COMMON
 261        bool
 262        depends on NFSD || NFS_FS || LOCKD
 263        default y
 264
 265source "net/sunrpc/Kconfig"
 266source "fs/ceph/Kconfig"
 267source "fs/cifs/Kconfig"
 268source "fs/ncpfs/Kconfig"
 269source "fs/coda/Kconfig"
 270source "fs/afs/Kconfig"
 271source "fs/9p/Kconfig"
 272
 273endif # NETWORK_FILESYSTEMS
 274
 275source "fs/nls/Kconfig"
 276source "fs/dlm/Kconfig"
 277
 278endmenu
 279