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 config FS_IOMAP
  14         bool
  15
  16 source "fs/ext2/Kconfig"
  17 source "fs/ext4/Kconfig"
  18 source "fs/jbd2/Kconfig"
  19
  20 config FS_MBCACHE
  21 # Meta block cache for Extended Attributes (ext2/ext3/ext4)
  22         tristate
  23         default y if EXT2_FS=y && EXT2_FS_XATTR
  24         default y if EXT4_FS=y
  25         default m if EXT2_FS_XATTR || EXT4_FS
  26
  27 source "fs/reiserfs/Kconfig"
  28 source "fs/jfs/Kconfig"
  29
  30 source "fs/xfs/Kconfig"
  31 source "fs/gfs2/Kconfig"
  32 source "fs/ocfs2/Kconfig"
  33 source "fs/btrfs/Kconfig"
  34 source "fs/nilfs2/Kconfig"
  35 source "fs/f2fs/Kconfig"
  36
  37 config FS_DAX
  38         bool "Direct Access (DAX) support"
  39         depends on MMU
  40         depends on !(ARM || MIPS || SPARC)
  41         help
  42           Direct Access (DAX) can be used on memory-backed block devices.
  43           If the block device supports DAX and the filesystem supports DAX,
  44           then you can avoid using the pagecache to buffer I/Os.  Turning
  45           on this option will compile in support for DAX; you will need to
  46           mount the filesystem using the -o dax option.
  47
  48           If you do not have a block device that is capable of using this,
  49           or if unsure, say N.  Saying Y will increase the size of the kernel
  50           by about 5kB.
  51
  52 config FS_DAX_PMD
  53         bool
  54         default FS_DAX
  55         depends on FS_DAX
  56         depends on ZONE_DEVICE
  57         depends on TRANSPARENT_HUGEPAGE
  58         depends on BROKEN
  59
  60 endif # BLOCK
  61
  62 # Posix ACL utility routines
  63 #
  64 # Note: Posix ACLs can be implemented without these helpers.  Never use
  65 # this symbol for ifdefs in core code.
  66 #
  67 config FS_POSIX_ACL
  68         def_bool n
  69
  70 config EXPORTFS
  71         tristate
  72
  73 config EXPORTFS_BLOCK_OPS
  74         bool "Enable filesystem export operations for block IO"
  75         help
  76           This option enables the export operations for a filesystem to support
  77           external block IO.
  78
  79 config FILE_LOCKING
  80         bool "Enable POSIX file locking API" if EXPERT
  81         default y
  82         help
  83           This option enables standard file locking support, required
  84           for filesystems like NFS and for the flock() system
  85           call. Disabling this option saves about 11k.
  86
  87 config MANDATORY_FILE_LOCKING
  88         bool "Enable Mandatory file locking"
  89         depends on FILE_LOCKING
  90         default y
  91         help
  92           This option enables files appropriately marked files on appropriely
  93           mounted filesystems to support mandatory locking.
  94
  95           To the best of my knowledge this is dead code that no one cares about.
  96
  97 source "fs/crypto/Kconfig"
  98
  99 source "fs/notify/Kconfig"
 100
 101 source "fs/quota/Kconfig"
 102
 103 source "fs/autofs4/Kconfig"
 104 source "fs/fuse/Kconfig"
 105 source "fs/overlayfs/Kconfig"
 106
 107 menu "Caches"
 108
 109 source "fs/fscache/Kconfig"
 110 source "fs/cachefiles/Kconfig"
 111
 112 endmenu
 113
 114 if BLOCK
 115 menu "CD-ROM/DVD Filesystems"
 116
 117 source "fs/isofs/Kconfig"
 118 source "fs/udf/Kconfig"
 119
 120 endmenu
 121 endif # BLOCK
 122
 123 if BLOCK
 124 menu "DOS/FAT/NT Filesystems"
 125
 126 source "fs/fat/Kconfig"
 127 source "fs/ntfs/Kconfig"
 128
 129 endmenu
 130 endif # BLOCK
 131
 132 menu "Pseudo filesystems"
 133
 134 source "fs/proc/Kconfig"
 135 source "fs/kernfs/Kconfig"
 136 source "fs/sysfs/Kconfig"
 137
 138 config TMPFS
 139         bool "Tmpfs virtual memory file system support (former shm fs)"
 140         depends on SHMEM
 141         help
 142           Tmpfs is a file system which keeps all files in virtual memory.
 143
 144           Everything in tmpfs is temporary in the sense that no files will be
 145           created on your hard drive. The files live in memory and swap
 146           space. If you unmount a tmpfs instance, everything stored therein is
 147           lost.
 148
 149           See <file:Documentation/filesystems/tmpfs.txt> for details.
 150
 151 config TMPFS_POSIX_ACL
 152         bool "Tmpfs POSIX Access Control Lists"
 153         depends on TMPFS
 154         select TMPFS_XATTR
 155         select FS_POSIX_ACL
 156         help
 157           POSIX Access Control Lists (ACLs) support additional access rights
 158           for users and groups beyond the standard owner/group/world scheme,
 159           and this option selects support for ACLs specifically for tmpfs
 160           filesystems.
 161
 162           If you've selected TMPFS, it's possible that you'll also need
 163           this option as there are a number of Linux distros that require
 164           POSIX ACL support under /dev for certain features to work properly.
 165           For example, some distros need this feature for ALSA-related /dev
 166           files for sound to work properly.  In short, if you're not sure,
 167           say Y.
 168
 169           To learn more about Access Control Lists, visit the POSIX ACLs for
 170           Linux website <http://acl.bestbits.at/>.
 171
 172 config TMPFS_XATTR
 173         bool "Tmpfs extended attributes"
 174         depends on TMPFS
 175         default n
 176         help
 177           Extended attributes are name:value pairs associated with inodes by
 178           the kernel or by users (see the attr(5) manual page, or visit
 179           <http://acl.bestbits.at/> for details).
 180
 181           Currently this enables support for the trusted.* and
 182           security.* namespaces.
 183
 184           You need this for POSIX ACL support on tmpfs.
 185
 186           If unsure, say N.
 187
 188 config HUGETLBFS
 189         bool "HugeTLB file system support"
 190         depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
 191                    SYS_SUPPORTS_HUGETLBFS || BROKEN
 192         help
 193           hugetlbfs is a filesystem backing for HugeTLB pages, based on
 194           ramfs. For architectures that support it, say Y here and read
 195           <file:Documentation/vm/hugetlbpage.txt> for details.
 196
 197           If unsure, say N.
 198
 199 config HUGETLB_PAGE
 200         def_bool HUGETLBFS
 201
 202 source "fs/configfs/Kconfig"
 203 source "fs/efivarfs/Kconfig"
 204
 205 endmenu
 206
 207 menuconfig MISC_FILESYSTEMS
 208         bool "Miscellaneous filesystems"
 209         default y
 210         ---help---
 211           Say Y here to get to see options for various miscellaneous
 212           filesystems, such as filesystems that came from other
 213           operating systems.
 214
 215           This option alone does not add any kernel code.
 216
 217           If you say N, all options in this submenu will be skipped and
 218           disabled; if unsure, say Y here.
 219
 220 if MISC_FILESYSTEMS
 221
 222 source "fs/orangefs/Kconfig"
 223 source "fs/adfs/Kconfig"
 224 source "fs/affs/Kconfig"
 225 source "fs/ecryptfs/Kconfig"
 226 source "fs/hfs/Kconfig"
 227 source "fs/hfsplus/Kconfig"
 228 source "fs/befs/Kconfig"
 229 source "fs/bfs/Kconfig"
 230 source "fs/efs/Kconfig"
 231 source "fs/jffs2/Kconfig"
 232 # UBIFS File system configuration
 233 source "fs/ubifs/Kconfig"
 234 source "fs/logfs/Kconfig"
 235 source "fs/cramfs/Kconfig"
 236 source "fs/squashfs/Kconfig"
 237 source "fs/freevxfs/Kconfig"
 238 source "fs/minix/Kconfig"
 239 source "fs/omfs/Kconfig"
 240 source "fs/hpfs/Kconfig"
 241 source "fs/qnx4/Kconfig"
 242 source "fs/qnx6/Kconfig"
 243 source "fs/romfs/Kconfig"
 244 source "fs/pstore/Kconfig"
 245 source "fs/sysv/Kconfig"
 246 source "fs/ufs/Kconfig"
 247 source "fs/exofs/Kconfig"
 248
 249 endif # MISC_FILESYSTEMS
 250
 251 source "fs/exofs/Kconfig.ore"
 252
 253 menuconfig NETWORK_FILESYSTEMS
 254         bool "Network File Systems"
 255         default y
 256         depends on NET
 257         ---help---
 258           Say Y here to get to see options for network filesystems and
 259           filesystem-related networking code, such as NFS daemon and
 260           RPCSEC security modules.
 261
 262           This option alone does not add any kernel code.
 263
 264           If you say N, all options in this submenu will be skipped and
 265           disabled; if unsure, say Y here.
 266
 267 if NETWORK_FILESYSTEMS
 268
 269 source "fs/nfs/Kconfig"
 270 source "fs/nfsd/Kconfig"
 271
 272 config GRACE_PERIOD
 273         tristate
 274
 275 config LOCKD
 276         tristate
 277         depends on FILE_LOCKING
 278         select GRACE_PERIOD
 279
 280 config LOCKD_V4
 281         bool
 282         depends on NFSD_V3 || NFS_V3
 283         depends on FILE_LOCKING
 284         default y
 285
 286 config NFS_ACL_SUPPORT
 287         tristate
 288         select FS_POSIX_ACL
 289
 290 config NFS_COMMON
 291         bool
 292         depends on NFSD || NFS_FS || LOCKD
 293         default y
 294
 295 source "net/sunrpc/Kconfig"
 296 source "fs/ceph/Kconfig"
 297 source "fs/cifs/Kconfig"
 298 source "fs/ncpfs/Kconfig"
 299 source "fs/coda/Kconfig"
 300 source "fs/afs/Kconfig"
 301 source "fs/9p/Kconfig"
 302
 303 endif # NETWORK_FILESYSTEMS
 304
 305 source "fs/nls/Kconfig"
 306 source "fs/dlm/Kconfig"
 307
 308 endmenu