| | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| | 2 | # |
| | 3 | # File system configuration |
| | 4 | # |
| | 5 | |
| | 6 | menu "File systems" |
| | 7 | |
| | 8 | # Use unaligned word dcache accesses |
| | 9 | config DCACHE_WORD_ACCESS |
| | 10 | bool |
| | 11 | |
| | 12 | config VALIDATE_FS_PARSER |
| | 13 | bool "Validate filesystem parameter description" |
| | 14 | help |
| | 15 | Enable this to perform validation of the parameter description for a |
| | 16 | filesystem when it is registered. |
| | 17 | |
| | 18 | if BLOCK |
| | 19 | |
| | 20 | config FS_IOMAP |
| | 21 | bool |
| | 22 | |
| | 23 | source "fs/ext2/Kconfig" |
| | 24 | source "fs/ext4/Kconfig" |
| | 25 | source "fs/jbd2/Kconfig" |
| | 26 | |
| | 27 | config FS_MBCACHE |
| | 28 | # Meta block cache for Extended Attributes (ext2/ext3/ext4) |
| | 29 | tristate |
| | 30 | default y if EXT2_FS=y && EXT2_FS_XATTR |
| | 31 | default y if EXT4_FS=y |
| | 32 | default m if EXT2_FS_XATTR || EXT4_FS |
| | 33 | |
| | 34 | source "fs/reiserfs/Kconfig" |
| | 35 | source "fs/jfs/Kconfig" |
| | 36 | |
| | 37 | source "fs/xfs/Kconfig" |
| | 38 | source "fs/gfs2/Kconfig" |
| | 39 | source "fs/ocfs2/Kconfig" |
| | 40 | source "fs/btrfs/Kconfig" |
| | 41 | source "fs/nilfs2/Kconfig" |
| | 42 | source "fs/f2fs/Kconfig" |
| | 43 | |
| | 44 | config FS_DAX |
| | 45 | bool "Direct Access (DAX) support" |
| | 46 | depends on MMU |
| | 47 | depends on !(ARM || MIPS || SPARC) |
| | 48 | select DEV_PAGEMAP_OPS if (ZONE_DEVICE && !FS_DAX_LIMITED) |
| | 49 | select FS_IOMAP |
| | 50 | select DAX |
| | 51 | help |
| | 52 | Direct Access (DAX) can be used on memory-backed block devices. |
| | 53 | If the block device supports DAX and the filesystem supports DAX, |
| | 54 | then you can avoid using the pagecache to buffer I/Os. Turning |
| | 55 | on this option will compile in support for DAX; you will need to |
| | 56 | mount the filesystem using the -o dax option. |
| | 57 | |
| | 58 | If you do not have a block device that is capable of using this, |
| | 59 | or if unsure, say N. Saying Y will increase the size of the kernel |
| | 60 | by about 5kB. |
| | 61 | |
| | 62 | config FS_DAX_PMD |
| | 63 | bool |
| | 64 | default FS_DAX |
| | 65 | depends on FS_DAX |
| | 66 | depends on ZONE_DEVICE |
| | 67 | depends on TRANSPARENT_HUGEPAGE |
| | 68 | |
| | 69 | # Selected by DAX drivers that do not expect filesystem DAX to support |
| | 70 | # get_user_pages() of DAX mappings. I.e. "limited" indicates no support |
| | 71 | # for fork() of processes with MAP_SHARED mappings or support for |
| | 72 | # direct-I/O to a DAX mapping. |
| | 73 | config FS_DAX_LIMITED |
| | 74 | bool |
| | 75 | |
| | 76 | endif # BLOCK |
| | 77 | |
| | 78 | # Posix ACL utility routines |
| | 79 | # |
| | 80 | # Note: Posix ACLs can be implemented without these helpers. Never use |
| | 81 | # this symbol for ifdefs in core code. |
| | 82 | # |
| | 83 | config FS_POSIX_ACL |
| | 84 | def_bool n |
| | 85 | |
| | 86 | config EXPORTFS |
| | 87 | tristate |
| | 88 | |
| | 89 | config EXPORTFS_BLOCK_OPS |
| | 90 | bool "Enable filesystem export operations for block IO" |
| | 91 | help |
| | 92 | This option enables the export operations for a filesystem to support |
| | 93 | external block IO. |
| | 94 | |
| | 95 | config FILE_LOCKING |
| | 96 | bool "Enable POSIX file locking API" if EXPERT |
| | 97 | default y |
| | 98 | help |
| | 99 | This option enables standard file locking support, required |
| | 100 | for filesystems like NFS and for the flock() system |
| | 101 | call. Disabling this option saves about 11k. |
| | 102 | |
| | 103 | config MANDATORY_FILE_LOCKING |
| | 104 | bool "Enable Mandatory file locking" |
| | 105 | depends on FILE_LOCKING |
| | 106 | default y |
| | 107 | help |
| | 108 | This option enables files appropriately marked files on appropriely |
| | 109 | mounted filesystems to support mandatory locking. |
| | 110 | |
| | 111 | To the best of my knowledge this is dead code that no one cares about. |
| | 112 | |
| | 113 | source "fs/crypto/Kconfig" |
| | 114 | |
| | 115 | source "fs/notify/Kconfig" |
| | 116 | |
| | 117 | source "fs/quota/Kconfig" |
| | 118 | |
| | 119 | source "fs/autofs/Kconfig" |
| | 120 | source "fs/fuse/Kconfig" |
| | 121 | source "fs/overlayfs/Kconfig" |
| | 122 | |
| | 123 | config SHIFT_FS |
| | 124 | tristate "UID/GID shifting overlay filesystem for containers" |
| | 125 | help |
| | 126 | This filesystem can overlay any mounted filesystem and shift |
| | 127 | the uid/gid the files appear at. The idea is that |
| | 128 | unprivileged containers can use this to mount root volumes |
| | 129 | using this technique. |
| | 130 | |
| | 131 | config SHIFT_FS_POSIX_ACL |
| | 132 | bool "shiftfs POSIX Access Control Lists" |
| | 133 | depends on SHIFT_FS |
| | 134 | select FS_POSIX_ACL |
| | 135 | help |
| | 136 | POSIX Access Control Lists (ACLs) support permissions for users and |
| | 137 | groups beyond the owner/group/world scheme. |
| | 138 | |
| | 139 | If you don't know what Access Control Lists are, say N. |
| | 140 | |
| | 141 | menu "Caches" |
| | 142 | |
| | 143 | source "fs/fscache/Kconfig" |
| | 144 | source "fs/cachefiles/Kconfig" |
| | 145 | |
| | 146 | endmenu |
| | 147 | |
| | 148 | if BLOCK |
| | 149 | menu "CD-ROM/DVD Filesystems" |
| | 150 | |
| | 151 | source "fs/isofs/Kconfig" |
| | 152 | source "fs/udf/Kconfig" |
| | 153 | |
| | 154 | endmenu |
| | 155 | endif # BLOCK |
| | 156 | |
| | 157 | if BLOCK |
| | 158 | menu "DOS/FAT/NT Filesystems" |
| | 159 | |
| | 160 | source "fs/fat/Kconfig" |
| | 161 | source "fs/ntfs/Kconfig" |
| | 162 | |
| | 163 | endmenu |
| | 164 | endif # BLOCK |
| | 165 | |
| | 166 | menu "Pseudo filesystems" |
| | 167 | |
| | 168 | source "fs/proc/Kconfig" |
| | 169 | source "fs/kernfs/Kconfig" |
| | 170 | source "fs/sysfs/Kconfig" |
| | 171 | |
| | 172 | config TMPFS |
| | 173 | bool "Tmpfs virtual memory file system support (former shm fs)" |
| | 174 | depends on SHMEM |
| | 175 | help |
| | 176 | Tmpfs is a file system which keeps all files in virtual memory. |
| | 177 | |
| | 178 | Everything in tmpfs is temporary in the sense that no files will be |
| | 179 | created on your hard drive. The files live in memory and swap |
| | 180 | space. If you unmount a tmpfs instance, everything stored therein is |
| | 181 | lost. |
| | 182 | |
| | 183 | See <file:Documentation/filesystems/tmpfs.txt> for details. |
| | 184 | |
| | 185 | config TMPFS_POSIX_ACL |
| | 186 | bool "Tmpfs POSIX Access Control Lists" |
| | 187 | depends on TMPFS |
| | 188 | select TMPFS_XATTR |
| | 189 | select FS_POSIX_ACL |
| | 190 | help |
| | 191 | POSIX Access Control Lists (ACLs) support additional access rights |
| | 192 | for users and groups beyond the standard owner/group/world scheme, |
| | 193 | and this option selects support for ACLs specifically for tmpfs |
| | 194 | filesystems. |
| | 195 | |
| | 196 | If you've selected TMPFS, it's possible that you'll also need |
| | 197 | this option as there are a number of Linux distros that require |
| | 198 | POSIX ACL support under /dev for certain features to work properly. |
| | 199 | For example, some distros need this feature for ALSA-related /dev |
| | 200 | files for sound to work properly. In short, if you're not sure, |
| | 201 | say Y. |
| | 202 | |
| | 203 | config TMPFS_XATTR |
| | 204 | bool "Tmpfs extended attributes" |
| | 205 | depends on TMPFS |
| | 206 | default n |
| | 207 | help |
| | 208 | Extended attributes are name:value pairs associated with inodes by |
| | 209 | the kernel or by users (see the attr(5) manual page for details). |
| | 210 | |
| | 211 | Currently this enables support for the trusted.* and |
| | 212 | security.* namespaces. |
| | 213 | |
| | 214 | You need this for POSIX ACL support on tmpfs. |
| | 215 | |
| | 216 | If unsure, say N. |
| | 217 | |
| | 218 | config HUGETLBFS |
| | 219 | bool "HugeTLB file system support" |
| | 220 | depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \ |
| | 221 | SYS_SUPPORTS_HUGETLBFS || BROKEN |
| | 222 | help |
| | 223 | hugetlbfs is a filesystem backing for HugeTLB pages, based on |
| | 224 | ramfs. For architectures that support it, say Y here and read |
| | 225 | <file:Documentation/admin-guide/mm/hugetlbpage.rst> for details. |
| | 226 | |
| | 227 | If unsure, say N. |
| | 228 | |
| | 229 | config HUGETLB_PAGE |
| | 230 | def_bool HUGETLBFS |
| | 231 | |
| | 232 | config MEMFD_CREATE |
| | 233 | def_bool TMPFS || HUGETLBFS |
| | 234 | |
| | 235 | config ARCH_HAS_GIGANTIC_PAGE |
| | 236 | bool |
| | 237 | |
| | 238 | source "fs/configfs/Kconfig" |
| | 239 | source "fs/efivarfs/Kconfig" |
| | 240 | |
| | 241 | endmenu |
| | 242 | |
| | 243 | menuconfig MISC_FILESYSTEMS |
| | 244 | bool "Miscellaneous filesystems" |
| | 245 | default y |
| | 246 | ---help--- |
| | 247 | Say Y here to get to see options for various miscellaneous |
| | 248 | filesystems, such as filesystems that came from other |
| | 249 | operating systems. |
| | 250 | |
| | 251 | This option alone does not add any kernel code. |
| | 252 | |
| | 253 | If you say N, all options in this submenu will be skipped and |
| | 254 | disabled; if unsure, say Y here. |
| | 255 | |
| | 256 | if MISC_FILESYSTEMS |
| | 257 | |
| | 258 | source "fs/orangefs/Kconfig" |
| | 259 | source "fs/adfs/Kconfig" |
| | 260 | source "fs/affs/Kconfig" |
| | 261 | source "fs/ecryptfs/Kconfig" |
| | 262 | source "fs/hfs/Kconfig" |
| | 263 | source "fs/hfsplus/Kconfig" |
| | 264 | source "fs/befs/Kconfig" |
| | 265 | source "fs/bfs/Kconfig" |
| | 266 | source "fs/efs/Kconfig" |
| | 267 | source "fs/jffs2/Kconfig" |
| | 268 | # UBIFS File system configuration |
| | 269 | source "fs/ubifs/Kconfig" |
| | 270 | source "fs/cramfs/Kconfig" |
| | 271 | source "fs/squashfs/Kconfig" |
| | 272 | source "fs/freevxfs/Kconfig" |
| | 273 | source "fs/minix/Kconfig" |
| | 274 | source "fs/omfs/Kconfig" |
| | 275 | source "fs/hpfs/Kconfig" |
| | 276 | source "fs/qnx4/Kconfig" |
| | 277 | source "fs/qnx6/Kconfig" |
| | 278 | source "fs/romfs/Kconfig" |
| | 279 | source "fs/pstore/Kconfig" |
| | 280 | source "fs/sysv/Kconfig" |
| | 281 | source "fs/ufs/Kconfig" |
| | 282 | source "fs/aufs/Kconfig" |
| | 283 | |
| | 284 | endif # MISC_FILESYSTEMS |
| | 285 | |
| | 286 | menuconfig NETWORK_FILESYSTEMS |
| | 287 | bool "Network File Systems" |
| | 288 | default y |
| | 289 | depends on NET |
| | 290 | ---help--- |
| | 291 | Say Y here to get to see options for network filesystems and |
| | 292 | filesystem-related networking code, such as NFS daemon and |
| | 293 | RPCSEC security modules. |
| | 294 | |
| | 295 | This option alone does not add any kernel code. |
| | 296 | |
| | 297 | If you say N, all options in this submenu will be skipped and |
| | 298 | disabled; if unsure, say Y here. |
| | 299 | |
| | 300 | if NETWORK_FILESYSTEMS |
| | 301 | |
| | 302 | source "fs/nfs/Kconfig" |
| | 303 | source "fs/nfsd/Kconfig" |
| | 304 | |
| | 305 | config GRACE_PERIOD |
| | 306 | tristate |
| | 307 | |
| | 308 | config LOCKD |
| | 309 | tristate |
| | 310 | depends on FILE_LOCKING |
| | 311 | select GRACE_PERIOD |
| | 312 | |
| | 313 | config LOCKD_V4 |
| | 314 | bool |
| | 315 | depends on NFSD_V3 || NFS_V3 |
| | 316 | depends on FILE_LOCKING |
| | 317 | default y |
| | 318 | |
| | 319 | config NFS_ACL_SUPPORT |
| | 320 | tristate |
| | 321 | select FS_POSIX_ACL |
| | 322 | |
| | 323 | config NFS_COMMON |
| | 324 | bool |
| | 325 | depends on NFSD || NFS_FS || LOCKD |
| | 326 | default y |
| | 327 | |
| | 328 | source "net/sunrpc/Kconfig" |
| | 329 | source "fs/ceph/Kconfig" |
| | 330 | source "fs/cifs/Kconfig" |
| | 331 | source "fs/coda/Kconfig" |
| | 332 | source "fs/afs/Kconfig" |
| | 333 | source "fs/9p/Kconfig" |
| | 334 | |
| | 335 | endif # NETWORK_FILESYSTEMS |
| | 336 | |
| | 337 | source "fs/nls/Kconfig" |
| | 338 | source "fs/dlm/Kconfig" |
| | 339 | source "fs/unicode/Kconfig" |
| | 340 | |
| | 341 | endmenu |
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