fs/Kconfig

   1 #
   2 # File system configuration
   3 #
   4
   5 menu "File systems"
   6
   7 # Use unaligned word dcache accesses
   8 config DCACHE_WORD_ACCESS
   9        bool
  10
  11 if BLOCK
  12
  13 source "fs/ext2/Kconfig"
  14 source "fs/ext4/Kconfig"
  15 source "fs/jbd2/Kconfig"
  16
  17 config 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
  24 source "fs/reiserfs/Kconfig"
  25 source "fs/jfs/Kconfig"
  26
  27 source "fs/xfs/Kconfig"
  28 source "fs/gfs2/Kconfig"
  29 source "fs/ocfs2/Kconfig"
  30 source "fs/btrfs/Kconfig"
  31 source "fs/nilfs2/Kconfig"
  32 source "fs/f2fs/Kconfig"
  33
  34 config 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
  49 endif # 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 #
  56 config FS_POSIX_ACL
  57         def_bool n
  58
  59 config EXPORTFS
  60         tristate
  61
  62 config 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
  70 source "fs/notify/Kconfig"
  71
  72 source "fs/quota/Kconfig"
  73
  74 source "fs/autofs4/Kconfig"
  75 source "fs/fuse/Kconfig"
  76 source "fs/overlayfs/Kconfig"
  77
  78 menu "Caches"
  79
  80 source "fs/fscache/Kconfig"
  81 source "fs/cachefiles/Kconfig"
  82
  83 endmenu
  84
  85 if BLOCK
  86 menu "CD-ROM/DVD Filesystems"
  87
  88 source "fs/isofs/Kconfig"
  89 source "fs/udf/Kconfig"
  90
  91 endmenu
  92 endif # BLOCK
  93
  94 if BLOCK
  95 menu "DOS/FAT/NT Filesystems"
  96
  97 source "fs/fat/Kconfig"
  98 source "fs/ntfs/Kconfig"
  99
 100 endmenu
 101 endif # BLOCK
 102
 103 menu "Pseudo filesystems"
 104
 105 source "fs/proc/Kconfig"
 106 source "fs/kernfs/Kconfig"
 107 source "fs/sysfs/Kconfig"
 108
 109 config 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
 122 config 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
 143 config 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
 159 config 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
 170 config HUGETLB_PAGE
 171         def_bool HUGETLBFS
 172
 173 source "fs/configfs/Kconfig"
 174 source "fs/efivarfs/Kconfig"
 175
 176 endmenu
 177
 178 menuconfig 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
 191 if MISC_FILESYSTEMS
 192
 193 source "fs/adfs/Kconfig"
 194 source "fs/affs/Kconfig"
 195 source "fs/ecryptfs/Kconfig"
 196 source "fs/hfs/Kconfig"
 197 source "fs/hfsplus/Kconfig"
 198 source "fs/befs/Kconfig"
 199 source "fs/bfs/Kconfig"
 200 source "fs/efs/Kconfig"
 201 source "fs/jffs2/Kconfig"
 202 # UBIFS File system configuration
 203 source "fs/ubifs/Kconfig"
 204 source "fs/logfs/Kconfig"
 205 source "fs/cramfs/Kconfig"
 206 source "fs/squashfs/Kconfig"
 207 source "fs/freevxfs/Kconfig"
 208 source "fs/minix/Kconfig"
 209 source "fs/omfs/Kconfig"
 210 source "fs/hpfs/Kconfig"
 211 source "fs/qnx4/Kconfig"
 212 source "fs/qnx6/Kconfig"
 213 source "fs/romfs/Kconfig"
 214 source "fs/pstore/Kconfig"
 215 source "fs/sysv/Kconfig"
 216 source "fs/ufs/Kconfig"
 217 source "fs/exofs/Kconfig"
 218
 219 endif # MISC_FILESYSTEMS
 220
 221 source "fs/exofs/Kconfig.ore"
 222
 223 menuconfig 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
 237 if NETWORK_FILESYSTEMS
 238
 239 source "fs/nfs/Kconfig"
 240 source "fs/nfsd/Kconfig"
 241
 242 config GRACE_PERIOD
 243         tristate
 244
 245 config LOCKD
 246         tristate
 247         depends on FILE_LOCKING
 248         select GRACE_PERIOD
 249
 250 config LOCKD_V4
 251         bool
 252         depends on NFSD_V3 || NFS_V3
 253         depends on FILE_LOCKING
 254         default y
 255
 256 config NFS_ACL_SUPPORT
 257         tristate
 258         select FS_POSIX_ACL
 259
 260 config NFS_COMMON
 261         bool
 262         depends on NFSD || NFS_FS || LOCKD
 263         default y
 264
 265 source "net/sunrpc/Kconfig"
 266 source "fs/ceph/Kconfig"
 267 source "fs/cifs/Kconfig"
 268 source "fs/ncpfs/Kconfig"
 269 source "fs/coda/Kconfig"
 270 source "fs/afs/Kconfig"
 271 source "fs/9p/Kconfig"
 272
 273 endif # NETWORK_FILESYSTEMS
 274
 275 source "fs/nls/Kconfig"
 276 source "fs/dlm/Kconfig"
 277
 278 endmenu