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 # Selected by DAX drivers that do not expect filesystem DAX to support
  62 # get_user_pages() of DAX mappings. I.e. "limited" indicates no support
  63 # for fork() of processes with MAP_SHARED mappings or support for
  64 # direct-I/O to a DAX mapping.
  65 config FS_DAX_LIMITED
  66         bool
  67
  68 endif # BLOCK
  69
  70 # Posix ACL utility routines
  71 #
  72 # Note: Posix ACLs can be implemented without these helpers.  Never use
  73 # this symbol for ifdefs in core code.
  74 #
  75 config FS_POSIX_ACL
  76         def_bool n
  77
  78 config EXPORTFS
  79         tristate
  80
  81 config EXPORTFS_BLOCK_OPS
  82         bool "Enable filesystem export operations for block IO"
  83         help
  84           This option enables the export operations for a filesystem to support
  85           external block IO.
  86
  87 config FILE_LOCKING
  88         bool "Enable POSIX file locking API" if EXPERT
  89         default y
  90         help
  91           This option enables standard file locking support, required
  92           for filesystems like NFS and for the flock() system
  93           call. Disabling this option saves about 11k.
  94
  95 config MANDATORY_FILE_LOCKING
  96         bool "Enable Mandatory file locking"
  97         depends on FILE_LOCKING
  98         default y
  99         help
 100           This option enables files appropriately marked files on appropriely
 101           mounted filesystems to support mandatory locking.
 102
 103           To the best of my knowledge this is dead code that no one cares about.
 104
 105 source "fs/crypto/Kconfig"
 106
 107 source "fs/notify/Kconfig"
 108
 109 source "fs/quota/Kconfig"
 110
 111 source "fs/autofs4/Kconfig"
 112 source "fs/fuse/Kconfig"
 113 source "fs/overlayfs/Kconfig"
 114
 115 menu "Caches"
 116
 117 source "fs/fscache/Kconfig"
 118 source "fs/cachefiles/Kconfig"
 119
 120 endmenu
 121
 122 if BLOCK
 123 menu "CD-ROM/DVD Filesystems"
 124
 125 source "fs/isofs/Kconfig"
 126 source "fs/udf/Kconfig"
 127
 128 endmenu
 129 endif # BLOCK
 130
 131 if BLOCK
 132 menu "DOS/FAT/NT Filesystems"
 133
 134 source "fs/fat/Kconfig"
 135 source "fs/ntfs/Kconfig"
 136
 137 endmenu
 138 endif # BLOCK
 139
 140 menu "Pseudo filesystems"
 141
 142 source "fs/proc/Kconfig"
 143 source "fs/kernfs/Kconfig"
 144 source "fs/sysfs/Kconfig"
 145
 146 config TMPFS
 147         bool "Tmpfs virtual memory file system support (former shm fs)"
 148         depends on SHMEM
 149         help
 150           Tmpfs is a file system which keeps all files in virtual memory.
 151
 152           Everything in tmpfs is temporary in the sense that no files will be
 153           created on your hard drive. The files live in memory and swap
 154           space. If you unmount a tmpfs instance, everything stored therein is
 155           lost.
 156
 157           See <file:Documentation/filesystems/tmpfs.txt> for details.
 158
 159 config TMPFS_POSIX_ACL
 160         bool "Tmpfs POSIX Access Control Lists"
 161         depends on TMPFS
 162         select TMPFS_XATTR
 163         select FS_POSIX_ACL
 164         help
 165           POSIX Access Control Lists (ACLs) support additional access rights
 166           for users and groups beyond the standard owner/group/world scheme,
 167           and this option selects support for ACLs specifically for tmpfs
 168           filesystems.
 169
 170           If you've selected TMPFS, it's possible that you'll also need
 171           this option as there are a number of Linux distros that require
 172           POSIX ACL support under /dev for certain features to work properly.
 173           For example, some distros need this feature for ALSA-related /dev
 174           files for sound to work properly.  In short, if you're not sure,
 175           say Y.
 176
 177           To learn more about Access Control Lists, visit the POSIX ACLs for
 178           Linux website <http://acl.bestbits.at/>.
 179
 180 config TMPFS_XATTR
 181         bool "Tmpfs extended attributes"
 182         depends on TMPFS
 183         default n
 184         help
 185           Extended attributes are name:value pairs associated with inodes by
 186           the kernel or by users (see the attr(5) manual page, or visit
 187           <http://acl.bestbits.at/> for details).
 188
 189           Currently this enables support for the trusted.* and
 190           security.* namespaces.
 191
 192           You need this for POSIX ACL support on tmpfs.
 193
 194           If unsure, say N.
 195
 196 config HUGETLBFS
 197         bool "HugeTLB file system support"
 198         depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
 199                    SYS_SUPPORTS_HUGETLBFS || BROKEN
 200         help
 201           hugetlbfs is a filesystem backing for HugeTLB pages, based on
 202           ramfs. For architectures that support it, say Y here and read
 203           <file:Documentation/vm/hugetlbpage.txt> for details.
 204
 205           If unsure, say N.
 206
 207 config HUGETLB_PAGE
 208         def_bool HUGETLBFS
 209
 210 config ARCH_HAS_GIGANTIC_PAGE
 211         bool
 212
 213 source "fs/configfs/Kconfig"
 214 source "fs/efivarfs/Kconfig"
 215
 216 endmenu
 217
 218 menuconfig MISC_FILESYSTEMS
 219         bool "Miscellaneous filesystems"
 220         default y
 221         ---help---
 222           Say Y here to get to see options for various miscellaneous
 223           filesystems, such as filesystems that came from other
 224           operating systems.
 225
 226           This option alone does not add any kernel code.
 227
 228           If you say N, all options in this submenu will be skipped and
 229           disabled; if unsure, say Y here.
 230
 231 if MISC_FILESYSTEMS
 232
 233 source "fs/orangefs/Kconfig"
 234 source "fs/adfs/Kconfig"
 235 source "fs/affs/Kconfig"
 236 source "fs/ecryptfs/Kconfig"
 237 source "fs/hfs/Kconfig"
 238 source "fs/hfsplus/Kconfig"
 239 source "fs/befs/Kconfig"
 240 source "fs/bfs/Kconfig"
 241 source "fs/efs/Kconfig"
 242 source "fs/jffs2/Kconfig"
 243 # UBIFS File system configuration
 244 source "fs/ubifs/Kconfig"
 245 source "fs/cramfs/Kconfig"
 246 source "fs/squashfs/Kconfig"
 247 source "fs/freevxfs/Kconfig"
 248 source "fs/minix/Kconfig"
 249 source "fs/omfs/Kconfig"
 250 source "fs/hpfs/Kconfig"
 251 source "fs/qnx4/Kconfig"
 252 source "fs/qnx6/Kconfig"
 253 source "fs/romfs/Kconfig"
 254 source "fs/pstore/Kconfig"
 255 source "fs/sysv/Kconfig"
 256 source "fs/ufs/Kconfig"
 257 source "fs/exofs/Kconfig"
 258 source "fs/aufs/Kconfig"
 259
 260 endif # MISC_FILESYSTEMS
 261
 262 source "fs/exofs/Kconfig.ore"
 263
 264 menuconfig NETWORK_FILESYSTEMS
 265         bool "Network File Systems"
 266         default y
 267         depends on NET
 268         ---help---
 269           Say Y here to get to see options for network filesystems and
 270           filesystem-related networking code, such as NFS daemon and
 271           RPCSEC security modules.
 272
 273           This option alone does not add any kernel code.
 274
 275           If you say N, all options in this submenu will be skipped and
 276           disabled; if unsure, say Y here.
 277
 278 if NETWORK_FILESYSTEMS
 279
 280 source "fs/nfs/Kconfig"
 281 source "fs/nfsd/Kconfig"
 282
 283 config GRACE_PERIOD
 284         tristate
 285
 286 config LOCKD
 287         tristate
 288         depends on FILE_LOCKING
 289         select GRACE_PERIOD
 290
 291 config LOCKD_V4
 292         bool
 293         depends on NFSD_V3 || NFS_V3
 294         depends on FILE_LOCKING
 295         default y
 296
 297 config NFS_ACL_SUPPORT
 298         tristate
 299         select FS_POSIX_ACL
 300
 301 config NFS_COMMON
 302         bool
 303         depends on NFSD || NFS_FS || LOCKD
 304         default y
 305
 306 source "net/sunrpc/Kconfig"
 307 source "fs/ceph/Kconfig"
 308 source "fs/cifs/Kconfig"
 309 source "fs/ncpfs/Kconfig"
 310 source "fs/coda/Kconfig"
 311 source "fs/afs/Kconfig"
 312 source "fs/9p/Kconfig"
 313
 314 endif # NETWORK_FILESYSTEMS
 315
 316 source "fs/nls/Kconfig"
 317 source "fs/dlm/Kconfig"
 318
 319 endmenu