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