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