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         select PERCPU_RWSEM
  83         help
  84           This option enables standard file locking support, required
  85           for filesystems like NFS and for the flock() system
  86           call. Disabling this option saves about 11k.
  87
  88 config MANDATORY_FILE_LOCKING
  89         bool "Enable Mandatory file locking"
  90         depends on FILE_LOCKING
  91         default y
  92         help
  93           This option enables files appropriately marked files on appropriely
  94           mounted filesystems to support mandatory locking.
  95
  96           To the best of my knowledge this is dead code that no one cares about.
  97
  98 source "fs/crypto/Kconfig"
  99
 100 source "fs/notify/Kconfig"
 101
 102 source "fs/quota/Kconfig"
 103
 104 source "fs/autofs4/Kconfig"
 105 source "fs/fuse/Kconfig"
 106 source "fs/overlayfs/Kconfig"
 107
 108 menu "Caches"
 109
 110 source "fs/fscache/Kconfig"
 111 source "fs/cachefiles/Kconfig"
 112
 113 endmenu
 114
 115 if BLOCK
 116 menu "CD-ROM/DVD Filesystems"
 117
 118 source "fs/isofs/Kconfig"
 119 source "fs/udf/Kconfig"
 120
 121 endmenu
 122 endif # BLOCK
 123
 124 if BLOCK
 125 menu "DOS/FAT/NT Filesystems"
 126
 127 source "fs/fat/Kconfig"
 128 source "fs/ntfs/Kconfig"
 129
 130 endmenu
 131 endif # BLOCK
 132
 133 menu "Pseudo filesystems"
 134
 135 source "fs/proc/Kconfig"
 136 source "fs/kernfs/Kconfig"
 137 source "fs/sysfs/Kconfig"
 138
 139 config TMPFS
 140         bool "Tmpfs virtual memory file system support (former shm fs)"
 141         depends on SHMEM
 142         help
 143           Tmpfs is a file system which keeps all files in virtual memory.
 144
 145           Everything in tmpfs is temporary in the sense that no files will be
 146           created on your hard drive. The files live in memory and swap
 147           space. If you unmount a tmpfs instance, everything stored therein is
 148           lost.
 149
 150           See <file:Documentation/filesystems/tmpfs.txt> for details.
 151
 152 config TMPFS_POSIX_ACL
 153         bool "Tmpfs POSIX Access Control Lists"
 154         depends on TMPFS
 155         select TMPFS_XATTR
 156         select FS_POSIX_ACL
 157         help
 158           POSIX Access Control Lists (ACLs) support additional access rights
 159           for users and groups beyond the standard owner/group/world scheme,
 160           and this option selects support for ACLs specifically for tmpfs
 161           filesystems.
 162
 163           If you've selected TMPFS, it's possible that you'll also need
 164           this option as there are a number of Linux distros that require
 165           POSIX ACL support under /dev for certain features to work properly.
 166           For example, some distros need this feature for ALSA-related /dev
 167           files for sound to work properly.  In short, if you're not sure,
 168           say Y.
 169
 170           To learn more about Access Control Lists, visit the POSIX ACLs for
 171           Linux website <http://acl.bestbits.at/>.
 172
 173 config TMPFS_XATTR
 174         bool "Tmpfs extended attributes"
 175         depends on TMPFS
 176         default n
 177         help
 178           Extended attributes are name:value pairs associated with inodes by
 179           the kernel or by users (see the attr(5) manual page, or visit
 180           <http://acl.bestbits.at/> for details).
 181
 182           Currently this enables support for the trusted.* and
 183           security.* namespaces.
 184
 185           You need this for POSIX ACL support on tmpfs.
 186
 187           If unsure, say N.
 188
 189 config HUGETLBFS
 190         bool "HugeTLB file system support"
 191         depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
 192                    SYS_SUPPORTS_HUGETLBFS || BROKEN
 193         help
 194           hugetlbfs is a filesystem backing for HugeTLB pages, based on
 195           ramfs. For architectures that support it, say Y here and read
 196           <file:Documentation/vm/hugetlbpage.txt> for details.
 197
 198           If unsure, say N.
 199
 200 config HUGETLB_PAGE
 201         def_bool HUGETLBFS
 202
 203 source "fs/configfs/Kconfig"
 204 source "fs/efivarfs/Kconfig"
 205
 206 endmenu
 207
 208 menuconfig MISC_FILESYSTEMS
 209         bool "Miscellaneous filesystems"
 210         default y
 211         ---help---
 212           Say Y here to get to see options for various miscellaneous
 213           filesystems, such as filesystems that came from other
 214           operating systems.
 215
 216           This option alone does not add any kernel code.
 217
 218           If you say N, all options in this submenu will be skipped and
 219           disabled; if unsure, say Y here.
 220
 221 if MISC_FILESYSTEMS
 222
 223 source "fs/orangefs/Kconfig"
 224 source "fs/adfs/Kconfig"
 225 source "fs/affs/Kconfig"
 226 source "fs/ecryptfs/Kconfig"
 227 source "fs/hfs/Kconfig"
 228 source "fs/hfsplus/Kconfig"
 229 source "fs/befs/Kconfig"
 230 source "fs/bfs/Kconfig"
 231 source "fs/efs/Kconfig"
 232 source "fs/jffs2/Kconfig"
 233 # UBIFS File system configuration
 234 source "fs/ubifs/Kconfig"
 235 source "fs/logfs/Kconfig"
 236 source "fs/cramfs/Kconfig"
 237 source "fs/squashfs/Kconfig"
 238 source "fs/freevxfs/Kconfig"
 239 source "fs/minix/Kconfig"
 240 source "fs/omfs/Kconfig"
 241 source "fs/hpfs/Kconfig"
 242 source "fs/qnx4/Kconfig"
 243 source "fs/qnx6/Kconfig"
 244 source "fs/romfs/Kconfig"
 245 source "fs/pstore/Kconfig"
 246 source "fs/sysv/Kconfig"
 247 source "fs/ufs/Kconfig"
 248 source "fs/exofs/Kconfig"
 249
 250 endif # MISC_FILESYSTEMS
 251
 252 source "fs/exofs/Kconfig.ore"
 253
 254 menuconfig NETWORK_FILESYSTEMS
 255         bool "Network File Systems"
 256         default y
 257         depends on NET
 258         ---help---
 259           Say Y here to get to see options for network filesystems and
 260           filesystem-related networking code, such as NFS daemon and
 261           RPCSEC security modules.
 262
 263           This option alone does not add any kernel code.
 264
 265           If you say N, all options in this submenu will be skipped and
 266           disabled; if unsure, say Y here.
 267
 268 if NETWORK_FILESYSTEMS
 269
 270 source "fs/nfs/Kconfig"
 271 source "fs/nfsd/Kconfig"
 272
 273 config GRACE_PERIOD
 274         tristate
 275
 276 config LOCKD
 277         tristate
 278         depends on FILE_LOCKING
 279         select GRACE_PERIOD
 280
 281 config LOCKD_V4
 282         bool
 283         depends on NFSD_V3 || NFS_V3
 284         depends on FILE_LOCKING
 285         default y
 286
 287 config NFS_ACL_SUPPORT
 288         tristate
 289         select FS_POSIX_ACL
 290
 291 config NFS_COMMON
 292         bool
 293         depends on NFSD || NFS_FS || LOCKD
 294         default y
 295
 296 source "net/sunrpc/Kconfig"
 297 source "fs/ceph/Kconfig"
 298 source "fs/cifs/Kconfig"
 299 source "fs/ncpfs/Kconfig"
 300 source "fs/coda/Kconfig"
 301 source "fs/afs/Kconfig"
 302 source "fs/9p/Kconfig"
 303
 304 endif # NETWORK_FILESYSTEMS
 305
 306 source "fs/nls/Kconfig"
 307 source "fs/dlm/Kconfig"
 308
 309 endmenu