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 source "fs/notify/Kconfig"
  77
  78 source "fs/quota/Kconfig"
  79
  80 source "fs/autofs4/Kconfig"
  81 source "fs/fuse/Kconfig"
  82 source "fs/overlayfs/Kconfig"
  83
  84 menu "Caches"
  85
  86 source "fs/fscache/Kconfig"
  87 source "fs/cachefiles/Kconfig"
  88
  89 endmenu
  90
  91 if BLOCK
  92 menu "CD-ROM/DVD Filesystems"
  93
  94 source "fs/isofs/Kconfig"
  95 source "fs/udf/Kconfig"
  96
  97 endmenu
  98 endif # BLOCK
  99
 100 if BLOCK
 101 menu "DOS/FAT/NT Filesystems"
 102
 103 source "fs/fat/Kconfig"
 104 source "fs/ntfs/Kconfig"
 105
 106 endmenu
 107 endif # BLOCK
 108
 109 menu "Pseudo filesystems"
 110
 111 source "fs/proc/Kconfig"
 112 source "fs/kernfs/Kconfig"
 113 source "fs/sysfs/Kconfig"
 114
 115 config TMPFS
 116         bool "Tmpfs virtual memory file system support (former shm fs)"
 117         depends on SHMEM
 118         help
 119           Tmpfs is a file system which keeps all files in virtual memory.
 120
 121           Everything in tmpfs is temporary in the sense that no files will be
 122           created on your hard drive. The files live in memory and swap
 123           space. If you unmount a tmpfs instance, everything stored therein is
 124           lost.
 125
 126           See <file:Documentation/filesystems/tmpfs.txt> for details.
 127
 128 config TMPFS_POSIX_ACL
 129         bool "Tmpfs POSIX Access Control Lists"
 130         depends on TMPFS
 131         select TMPFS_XATTR
 132         select FS_POSIX_ACL
 133         help
 134           POSIX Access Control Lists (ACLs) support additional access rights
 135           for users and groups beyond the standard owner/group/world scheme,
 136           and this option selects support for ACLs specifically for tmpfs
 137           filesystems.
 138
 139           If you've selected TMPFS, it's possible that you'll also need
 140           this option as there are a number of Linux distros that require
 141           POSIX ACL support under /dev for certain features to work properly.
 142           For example, some distros need this feature for ALSA-related /dev
 143           files for sound to work properly.  In short, if you're not sure,
 144           say Y.
 145
 146           To learn more about Access Control Lists, visit the POSIX ACLs for
 147           Linux website <http://acl.bestbits.at/>.
 148
 149 config TMPFS_XATTR
 150         bool "Tmpfs extended attributes"
 151         depends on TMPFS
 152         default n
 153         help
 154           Extended attributes are name:value pairs associated with inodes by
 155           the kernel or by users (see the attr(5) manual page, or visit
 156           <http://acl.bestbits.at/> for details).
 157
 158           Currently this enables support for the trusted.* and
 159           security.* namespaces.
 160
 161           You need this for POSIX ACL support on tmpfs.
 162
 163           If unsure, say N.
 164
 165 config HUGETLBFS
 166         bool "HugeTLB file system support"
 167         depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
 168                    SYS_SUPPORTS_HUGETLBFS || BROKEN
 169         help
 170           hugetlbfs is a filesystem backing for HugeTLB pages, based on
 171           ramfs. For architectures that support it, say Y here and read
 172           <file:Documentation/vm/hugetlbpage.txt> for details.
 173
 174           If unsure, say N.
 175
 176 config HUGETLB_PAGE
 177         def_bool HUGETLBFS
 178
 179 source "fs/configfs/Kconfig"
 180 source "fs/efivarfs/Kconfig"
 181
 182 endmenu
 183
 184 menuconfig MISC_FILESYSTEMS
 185         bool "Miscellaneous filesystems"
 186         default y
 187         ---help---
 188           Say Y here to get to see options for various miscellaneous
 189           filesystems, such as filesystems that came from other
 190           operating systems.
 191
 192           This option alone does not add any kernel code.
 193
 194           If you say N, all options in this submenu will be skipped and
 195           disabled; if unsure, say Y here.
 196
 197 if MISC_FILESYSTEMS
 198
 199 source "fs/adfs/Kconfig"
 200 source "fs/affs/Kconfig"
 201 source "fs/ecryptfs/Kconfig"
 202 source "fs/hfs/Kconfig"
 203 source "fs/hfsplus/Kconfig"
 204 source "fs/befs/Kconfig"
 205 source "fs/bfs/Kconfig"
 206 source "fs/efs/Kconfig"
 207 source "fs/jffs2/Kconfig"
 208 # UBIFS File system configuration
 209 source "fs/ubifs/Kconfig"
 210 source "fs/logfs/Kconfig"
 211 source "fs/cramfs/Kconfig"
 212 source "fs/squashfs/Kconfig"
 213 source "fs/freevxfs/Kconfig"
 214 source "fs/minix/Kconfig"
 215 source "fs/omfs/Kconfig"
 216 source "fs/hpfs/Kconfig"
 217 source "fs/qnx4/Kconfig"
 218 source "fs/qnx6/Kconfig"
 219 source "fs/romfs/Kconfig"
 220 source "fs/pstore/Kconfig"
 221 source "fs/sysv/Kconfig"
 222 source "fs/ufs/Kconfig"
 223 source "fs/exofs/Kconfig"
 224
 225 endif # MISC_FILESYSTEMS
 226
 227 source "fs/exofs/Kconfig.ore"
 228
 229 menuconfig NETWORK_FILESYSTEMS
 230         bool "Network File Systems"
 231         default y
 232         depends on NET
 233         ---help---
 234           Say Y here to get to see options for network filesystems and
 235           filesystem-related networking code, such as NFS daemon and
 236           RPCSEC security modules.
 237
 238           This option alone does not add any kernel code.
 239
 240           If you say N, all options in this submenu will be skipped and
 241           disabled; if unsure, say Y here.
 242
 243 if NETWORK_FILESYSTEMS
 244
 245 source "fs/nfs/Kconfig"
 246 source "fs/nfsd/Kconfig"
 247
 248 config GRACE_PERIOD
 249         tristate
 250
 251 config LOCKD
 252         tristate
 253         depends on FILE_LOCKING
 254         select GRACE_PERIOD
 255
 256 config LOCKD_V4
 257         bool
 258         depends on NFSD_V3 || NFS_V3
 259         depends on FILE_LOCKING
 260         default y
 261
 262 config NFS_ACL_SUPPORT
 263         tristate
 264         select FS_POSIX_ACL
 265
 266 config NFS_COMMON
 267         bool
 268         depends on NFSD || NFS_FS || LOCKD
 269         default y
 270
 271 source "net/sunrpc/Kconfig"
 272 source "fs/ceph/Kconfig"
 273 source "fs/cifs/Kconfig"
 274 source "fs/ncpfs/Kconfig"
 275 source "fs/coda/Kconfig"
 276 source "fs/afs/Kconfig"
 277 source "fs/9p/Kconfig"
 278
 279 endif # NETWORK_FILESYSTEMS
 280
 281 source "fs/nls/Kconfig"
 282 source "fs/dlm/Kconfig"
 283
 284 endmenu