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Linux/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 ZONE_DEVICE
 54         depends on TRANSPARENT_HUGEPAGE
 55 
 56 endif # BLOCK
 57 
 58 # Posix ACL utility routines
 59 #
 60 # Note: Posix ACLs can be implemented without these helpers.  Never use
 61 # this symbol for ifdefs in core code.
 62 #
 63 config FS_POSIX_ACL
 64         def_bool n
 65 
 66 config EXPORTFS
 67         tristate
 68 
 69 config FILE_LOCKING
 70         bool "Enable POSIX file locking API" if EXPERT
 71         default y
 72         help
 73           This option enables standard file locking support, required
 74           for filesystems like NFS and for the flock() system
 75           call. Disabling this option saves about 11k.
 76 
 77 config MANDATORY_FILE_LOCKING
 78         bool "Enable Mandatory file locking"
 79         depends on FILE_LOCKING
 80         default y
 81         help
 82           This option enables files appropriately marked files on appropriely
 83           mounted filesystems to support mandatory locking.
 84 
 85           To the best of my knowledge this is dead code that no one cares about.
 86 
 87 source "fs/crypto/Kconfig"
 88 
 89 source "fs/notify/Kconfig"
 90 
 91 source "fs/quota/Kconfig"
 92 
 93 source "fs/autofs4/Kconfig"
 94 source "fs/fuse/Kconfig"
 95 source "fs/overlayfs/Kconfig"
 96 
 97 menu "Caches"
 98 
 99 source "fs/fscache/Kconfig"
100 source "fs/cachefiles/Kconfig"
101 
102 endmenu
103 
104 if BLOCK
105 menu "CD-ROM/DVD Filesystems"
106 
107 source "fs/isofs/Kconfig"
108 source "fs/udf/Kconfig"
109 
110 endmenu
111 endif # BLOCK
112 
113 if BLOCK
114 menu "DOS/FAT/NT Filesystems"
115 
116 source "fs/fat/Kconfig"
117 source "fs/ntfs/Kconfig"
118 
119 endmenu
120 endif # BLOCK
121 
122 menu "Pseudo filesystems"
123 
124 source "fs/proc/Kconfig"
125 source "fs/kernfs/Kconfig"
126 source "fs/sysfs/Kconfig"
127 
128 config TMPFS
129         bool "Tmpfs virtual memory file system support (former shm fs)"
130         depends on SHMEM
131         help
132           Tmpfs is a file system which keeps all files in virtual memory.
133 
134           Everything in tmpfs is temporary in the sense that no files will be
135           created on your hard drive. The files live in memory and swap
136           space. If you unmount a tmpfs instance, everything stored therein is
137           lost.
138 
139           See <file:Documentation/filesystems/tmpfs.txt> for details.
140 
141 config TMPFS_POSIX_ACL
142         bool "Tmpfs POSIX Access Control Lists"
143         depends on TMPFS
144         select TMPFS_XATTR
145         select FS_POSIX_ACL
146         help
147           POSIX Access Control Lists (ACLs) support additional access rights
148           for users and groups beyond the standard owner/group/world scheme,
149           and this option selects support for ACLs specifically for tmpfs
150           filesystems.
151 
152           If you've selected TMPFS, it's possible that you'll also need
153           this option as there are a number of Linux distros that require
154           POSIX ACL support under /dev for certain features to work properly.
155           For example, some distros need this feature for ALSA-related /dev
156           files for sound to work properly.  In short, if you're not sure,
157           say Y.
158 
159           To learn more about Access Control Lists, visit the POSIX ACLs for
160           Linux website <http://acl.bestbits.at/>.
161 
162 config TMPFS_XATTR
163         bool "Tmpfs extended attributes"
164         depends on TMPFS
165         default n
166         help
167           Extended attributes are name:value pairs associated with inodes by
168           the kernel or by users (see the attr(5) manual page, or visit
169           <http://acl.bestbits.at/> for details).
170 
171           Currently this enables support for the trusted.* and
172           security.* namespaces.
173 
174           You need this for POSIX ACL support on tmpfs.
175 
176           If unsure, say N.
177 
178 config HUGETLBFS
179         bool "HugeTLB file system support"
180         depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
181                    SYS_SUPPORTS_HUGETLBFS || BROKEN
182         help
183           hugetlbfs is a filesystem backing for HugeTLB pages, based on
184           ramfs. For architectures that support it, say Y here and read
185           <file:Documentation/vm/hugetlbpage.txt> for details.
186 
187           If unsure, say N.
188 
189 config HUGETLB_PAGE
190         def_bool HUGETLBFS
191 
192 source "fs/configfs/Kconfig"
193 source "fs/efivarfs/Kconfig"
194 
195 endmenu
196 
197 menuconfig MISC_FILESYSTEMS
198         bool "Miscellaneous filesystems"
199         default y
200         ---help---
201           Say Y here to get to see options for various miscellaneous
202           filesystems, such as filesystems that came from other
203           operating systems.
204 
205           This option alone does not add any kernel code.
206 
207           If you say N, all options in this submenu will be skipped and
208           disabled; if unsure, say Y here.
209 
210 if MISC_FILESYSTEMS
211 
212 source "fs/orangefs/Kconfig"
213 source "fs/adfs/Kconfig"
214 source "fs/affs/Kconfig"
215 source "fs/ecryptfs/Kconfig"
216 source "fs/hfs/Kconfig"
217 source "fs/hfsplus/Kconfig"
218 source "fs/befs/Kconfig"
219 source "fs/bfs/Kconfig"
220 source "fs/efs/Kconfig"
221 source "fs/jffs2/Kconfig"
222 # UBIFS File system configuration
223 source "fs/ubifs/Kconfig"
224 source "fs/logfs/Kconfig"
225 source "fs/cramfs/Kconfig"
226 source "fs/squashfs/Kconfig"
227 source "fs/freevxfs/Kconfig"
228 source "fs/minix/Kconfig"
229 source "fs/omfs/Kconfig"
230 source "fs/hpfs/Kconfig"
231 source "fs/qnx4/Kconfig"
232 source "fs/qnx6/Kconfig"
233 source "fs/romfs/Kconfig"
234 source "fs/pstore/Kconfig"
235 source "fs/sysv/Kconfig"
236 source "fs/ufs/Kconfig"
237 source "fs/exofs/Kconfig"
238 
239 endif # MISC_FILESYSTEMS
240 
241 source "fs/exofs/Kconfig.ore"
242 
243 menuconfig NETWORK_FILESYSTEMS
244         bool "Network File Systems"
245         default y
246         depends on NET
247         ---help---
248           Say Y here to get to see options for network filesystems and
249           filesystem-related networking code, such as NFS daemon and
250           RPCSEC security modules.
251 
252           This option alone does not add any kernel code.
253 
254           If you say N, all options in this submenu will be skipped and
255           disabled; if unsure, say Y here.
256 
257 if NETWORK_FILESYSTEMS
258 
259 source "fs/nfs/Kconfig"
260 source "fs/nfsd/Kconfig"
261 
262 config GRACE_PERIOD
263         tristate
264 
265 config LOCKD
266         tristate
267         depends on FILE_LOCKING
268         select GRACE_PERIOD
269 
270 config LOCKD_V4
271         bool
272         depends on NFSD_V3 || NFS_V3
273         depends on FILE_LOCKING
274         default y
275 
276 config NFS_ACL_SUPPORT
277         tristate
278         select FS_POSIX_ACL
279 
280 config NFS_COMMON
281         bool
282         depends on NFSD || NFS_FS || LOCKD
283         default y
284 
285 source "net/sunrpc/Kconfig"
286 source "fs/ceph/Kconfig"
287 source "fs/cifs/Kconfig"
288 source "fs/ncpfs/Kconfig"
289 source "fs/coda/Kconfig"
290 source "fs/afs/Kconfig"
291 source "fs/9p/Kconfig"
292 
293 endif # NETWORK_FILESYSTEMS
294 
295 source "fs/nls/Kconfig"
296 source "fs/dlm/Kconfig"
297 
298 endmenu

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