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         select FS_IOMAP
  42         select DAX
  43         help
  44           Direct Access (DAX) can be used on memory-backed block devices.
  45           If the block device supports DAX and the filesystem supports DAX,
  46           then you can avoid using the pagecache to buffer I/Os.  Turning
  47           on this option will compile in support for DAX; you will need to
  48           mount the filesystem using the -o dax option.
  49
  50           If you do not have a block device that is capable of using this,
  51           or if unsure, say N.  Saying Y will increase the size of the kernel
  52           by about 5kB.
  53
  54 config FS_DAX_PMD
  55         bool
  56         default FS_DAX
  57         depends on FS_DAX
  58         depends on ZONE_DEVICE
  59         depends on TRANSPARENT_HUGEPAGE
  60
  61 endif # BLOCK
  62
  63 # Posix ACL utility routines
  64 #
  65 # Note: Posix ACLs can be implemented without these helpers.  Never use
  66 # this symbol for ifdefs in core code.
  67 #
  68 config FS_POSIX_ACL
  69         def_bool n
  70
  71 config EXPORTFS
  72         tristate
  73
  74 config EXPORTFS_BLOCK_OPS
  75         bool "Enable filesystem export operations for block IO"
  76         help
  77           This option enables the export operations for a filesystem to support
  78           external block IO.
  79
  80 config FILE_LOCKING
  81         bool "Enable POSIX file locking API" if EXPERT
  82         default y
  83         select PERCPU_RWSEM
  84         help
  85           This option enables standard file locking support, required
  86           for filesystems like NFS and for the flock() system
  87           call. Disabling this option saves about 11k.
  88
  89 config MANDATORY_FILE_LOCKING
  90         bool "Enable Mandatory file locking"
  91         depends on FILE_LOCKING
  92         default y
  93         help
  94           This option enables files appropriately marked files on appropriely
  95           mounted filesystems to support mandatory locking.
  96
  97           To the best of my knowledge this is dead code that no one cares about.
  98
  99 source "fs/crypto/Kconfig"
 100
 101 source "fs/notify/Kconfig"
 102
 103 source "fs/quota/Kconfig"
 104
 105 source "fs/autofs4/Kconfig"
 106 source "fs/fuse/Kconfig"
 107 source "fs/overlayfs/Kconfig"
 108
 109 menu "Caches"
 110
 111 source "fs/fscache/Kconfig"
 112 source "fs/cachefiles/Kconfig"
 113
 114 endmenu
 115
 116 if BLOCK
 117 menu "CD-ROM/DVD Filesystems"
 118
 119 source "fs/isofs/Kconfig"
 120 source "fs/udf/Kconfig"
 121
 122 endmenu
 123 endif # BLOCK
 124
 125 if BLOCK
 126 menu "DOS/FAT/NT Filesystems"
 127
 128 source "fs/fat/Kconfig"
 129 source "fs/ntfs/Kconfig"
 130
 131 endmenu
 132 endif # BLOCK
 133
 134 menu "Pseudo filesystems"
 135
 136 source "fs/proc/Kconfig"
 137 source "fs/kernfs/Kconfig"
 138 source "fs/sysfs/Kconfig"
 139
 140 config TMPFS
 141         bool "Tmpfs virtual memory file system support (former shm fs)"
 142         depends on SHMEM
 143         help
 144           Tmpfs is a file system which keeps all files in virtual memory.
 145
 146           Everything in tmpfs is temporary in the sense that no files will be
 147           created on your hard drive. The files live in memory and swap
 148           space. If you unmount a tmpfs instance, everything stored therein is
 149           lost.
 150
 151           See <file:Documentation/filesystems/tmpfs.txt> for details.
 152
 153 config TMPFS_POSIX_ACL
 154         bool "Tmpfs POSIX Access Control Lists"
 155         depends on TMPFS
 156         select TMPFS_XATTR
 157         select FS_POSIX_ACL
 158         help
 159           POSIX Access Control Lists (ACLs) support additional access rights
 160           for users and groups beyond the standard owner/group/world scheme,
 161           and this option selects support for ACLs specifically for tmpfs
 162           filesystems.
 163
 164           If you've selected TMPFS, it's possible that you'll also need
 165           this option as there are a number of Linux distros that require
 166           POSIX ACL support under /dev for certain features to work properly.
 167           For example, some distros need this feature for ALSA-related /dev
 168           files for sound to work properly.  In short, if you're not sure,
 169           say Y.
 170
 171           To learn more about Access Control Lists, visit the POSIX ACLs for
 172           Linux website <http://acl.bestbits.at/>.
 173
 174 config TMPFS_XATTR
 175         bool "Tmpfs extended attributes"
 176         depends on TMPFS
 177         default n
 178         help
 179           Extended attributes are name:value pairs associated with inodes by
 180           the kernel or by users (see the attr(5) manual page, or visit
 181           <http://acl.bestbits.at/> for details).
 182
 183           Currently this enables support for the trusted.* and
 184           security.* namespaces.
 185
 186           You need this for POSIX ACL support on tmpfs.
 187
 188           If unsure, say N.
 189
 190 config HUGETLBFS
 191         bool "HugeTLB file system support"
 192         depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
 193                    SYS_SUPPORTS_HUGETLBFS || BROKEN
 194         help
 195           hugetlbfs is a filesystem backing for HugeTLB pages, based on
 196           ramfs. For architectures that support it, say Y here and read
 197           <file:Documentation/vm/hugetlbpage.txt> for details.
 198
 199           If unsure, say N.
 200
 201 config HUGETLB_PAGE
 202         def_bool HUGETLBFS
 203
 204 config ARCH_HAS_GIGANTIC_PAGE
 205         bool
 206
 207 source "fs/configfs/Kconfig"
 208 source "fs/efivarfs/Kconfig"
 209
 210 endmenu
 211
 212 menuconfig MISC_FILESYSTEMS
 213         bool "Miscellaneous filesystems"
 214         default y
 215         ---help---
 216           Say Y here to get to see options for various miscellaneous
 217           filesystems, such as filesystems that came from other
 218           operating systems.
 219
 220           This option alone does not add any kernel code.
 221
 222           If you say N, all options in this submenu will be skipped and
 223           disabled; if unsure, say Y here.
 224
 225 if MISC_FILESYSTEMS
 226
 227 source "fs/orangefs/Kconfig"
 228 source "fs/adfs/Kconfig"
 229 source "fs/affs/Kconfig"
 230 source "fs/ecryptfs/Kconfig"
 231 source "fs/hfs/Kconfig"
 232 source "fs/hfsplus/Kconfig"
 233 source "fs/befs/Kconfig"
 234 source "fs/bfs/Kconfig"
 235 source "fs/efs/Kconfig"
 236 source "fs/jffs2/Kconfig"
 237 # UBIFS File system configuration
 238 source "fs/ubifs/Kconfig"
 239 source "fs/cramfs/Kconfig"
 240 source "fs/squashfs/Kconfig"
 241 source "fs/freevxfs/Kconfig"
 242 source "fs/minix/Kconfig"
 243 source "fs/omfs/Kconfig"
 244 source "fs/hpfs/Kconfig"
 245 source "fs/qnx4/Kconfig"
 246 source "fs/qnx6/Kconfig"
 247 source "fs/romfs/Kconfig"
 248 source "fs/pstore/Kconfig"
 249 source "fs/sysv/Kconfig"
 250 source "fs/ufs/Kconfig"
 251 source "fs/exofs/Kconfig"
 252
 253 endif # MISC_FILESYSTEMS
 254
 255 source "fs/exofs/Kconfig.ore"
 256
 257 menuconfig NETWORK_FILESYSTEMS
 258         bool "Network File Systems"
 259         default y
 260         depends on NET
 261         ---help---
 262           Say Y here to get to see options for network filesystems and
 263           filesystem-related networking code, such as NFS daemon and
 264           RPCSEC security modules.
 265
 266           This option alone does not add any kernel code.
 267
 268           If you say N, all options in this submenu will be skipped and
 269           disabled; if unsure, say Y here.
 270
 271 if NETWORK_FILESYSTEMS
 272
 273 source "fs/nfs/Kconfig"
 274 source "fs/nfsd/Kconfig"
 275
 276 config GRACE_PERIOD
 277         tristate
 278
 279 config LOCKD
 280         tristate
 281         depends on FILE_LOCKING
 282         select GRACE_PERIOD
 283
 284 config LOCKD_V4
 285         bool
 286         depends on NFSD_V3 || NFS_V3
 287         depends on FILE_LOCKING
 288         default y
 289
 290 config NFS_ACL_SUPPORT
 291         tristate
 292         select FS_POSIX_ACL
 293
 294 config NFS_COMMON
 295         bool
 296         depends on NFSD || NFS_FS || LOCKD
 297         default y
 298
 299 source "net/sunrpc/Kconfig"
 300 source "fs/ceph/Kconfig"
 301 source "fs/cifs/Kconfig"
 302 source "fs/ncpfs/Kconfig"
 303 source "fs/coda/Kconfig"
 304 source "fs/afs/Kconfig"
 305 source "fs/9p/Kconfig"
 306
 307 endif # NETWORK_FILESYSTEMS
 308
 309 source "fs/nls/Kconfig"
 310 source "fs/dlm/Kconfig"
 311
 312 endmenu