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 config TMPFS_XATTR
 178         bool "Tmpfs extended attributes"
 179         depends on TMPFS
 180         default n
 181         help
 182           Extended attributes are name:value pairs associated with inodes by
 183           the kernel or by users (see the attr(5) manual page for details).
 184
 185           Currently this enables support for the trusted.* and
 186           security.* namespaces.
 187
 188           You need this for POSIX ACL support on tmpfs.
 189
 190           If unsure, say N.
 191
 192 config HUGETLBFS
 193         bool "HugeTLB file system support"
 194         depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
 195                    SYS_SUPPORTS_HUGETLBFS || BROKEN
 196         help
 197           hugetlbfs is a filesystem backing for HugeTLB pages, based on
 198           ramfs. For architectures that support it, say Y here and read
 199           <file:Documentation/vm/hugetlbpage.txt> for details.
 200
 201           If unsure, say N.
 202
 203 config HUGETLB_PAGE
 204         def_bool HUGETLBFS
 205
 206 config ARCH_HAS_GIGANTIC_PAGE
 207         bool
 208
 209 source "fs/configfs/Kconfig"
 210 source "fs/efivarfs/Kconfig"
 211
 212 endmenu
 213
 214 menuconfig MISC_FILESYSTEMS
 215         bool "Miscellaneous filesystems"
 216         default y
 217         ---help---
 218           Say Y here to get to see options for various miscellaneous
 219           filesystems, such as filesystems that came from other
 220           operating systems.
 221
 222           This option alone does not add any kernel code.
 223
 224           If you say N, all options in this submenu will be skipped and
 225           disabled; if unsure, say Y here.
 226
 227 if MISC_FILESYSTEMS
 228
 229 source "fs/orangefs/Kconfig"
 230 source "fs/adfs/Kconfig"
 231 source "fs/affs/Kconfig"
 232 source "fs/ecryptfs/Kconfig"
 233 source "fs/hfs/Kconfig"
 234 source "fs/hfsplus/Kconfig"
 235 source "fs/befs/Kconfig"
 236 source "fs/bfs/Kconfig"
 237 source "fs/efs/Kconfig"
 238 source "fs/jffs2/Kconfig"
 239 # UBIFS File system configuration
 240 source "fs/ubifs/Kconfig"
 241 source "fs/cramfs/Kconfig"
 242 source "fs/squashfs/Kconfig"
 243 source "fs/freevxfs/Kconfig"
 244 source "fs/minix/Kconfig"
 245 source "fs/omfs/Kconfig"
 246 source "fs/hpfs/Kconfig"
 247 source "fs/qnx4/Kconfig"
 248 source "fs/qnx6/Kconfig"
 249 source "fs/romfs/Kconfig"
 250 source "fs/pstore/Kconfig"
 251 source "fs/sysv/Kconfig"
 252 source "fs/ufs/Kconfig"
 253 source "fs/exofs/Kconfig"
 254
 255 endif # MISC_FILESYSTEMS
 256
 257 source "fs/exofs/Kconfig.ore"
 258
 259 menuconfig NETWORK_FILESYSTEMS
 260         bool "Network File Systems"
 261         default y
 262         depends on NET
 263         ---help---
 264           Say Y here to get to see options for network filesystems and
 265           filesystem-related networking code, such as NFS daemon and
 266           RPCSEC security modules.
 267
 268           This option alone does not add any kernel code.
 269
 270           If you say N, all options in this submenu will be skipped and
 271           disabled; if unsure, say Y here.
 272
 273 if NETWORK_FILESYSTEMS
 274
 275 source "fs/nfs/Kconfig"
 276 source "fs/nfsd/Kconfig"
 277
 278 config GRACE_PERIOD
 279         tristate
 280
 281 config LOCKD
 282         tristate
 283         depends on FILE_LOCKING
 284         select GRACE_PERIOD
 285
 286 config LOCKD_V4
 287         bool
 288         depends on NFSD_V3 || NFS_V3
 289         depends on FILE_LOCKING
 290         default y
 291
 292 config NFS_ACL_SUPPORT
 293         tristate
 294         select FS_POSIX_ACL
 295
 296 config NFS_COMMON
 297         bool
 298         depends on NFSD || NFS_FS || LOCKD
 299         default y
 300
 301 source "net/sunrpc/Kconfig"
 302 source "fs/ceph/Kconfig"
 303 source "fs/cifs/Kconfig"
 304 source "fs/coda/Kconfig"
 305 source "fs/afs/Kconfig"
 306 source "fs/9p/Kconfig"
 307
 308 endif # NETWORK_FILESYSTEMS
 309
 310 source "fs/nls/Kconfig"
 311 source "fs/dlm/Kconfig"
 312
 313 endmenu