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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 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         depends on BROKEN
 59 
 60 endif # BLOCK
 61 
 62 # Posix ACL utility routines
 63 #
 64 # Note: Posix ACLs can be implemented without these helpers.  Never use
 65 # this symbol for ifdefs in core code.
 66 #
 67 config FS_POSIX_ACL
 68         def_bool n
 69 
 70 config EXPORTFS
 71         tristate
 72 
 73 config EXPORTFS_BLOCK_OPS
 74         bool "Enable filesystem export operations for block IO"
 75         help
 76           This option enables the export operations for a filesystem to support
 77           external block IO.
 78 
 79 config FILE_LOCKING
 80         bool "Enable POSIX file locking API" if EXPERT
 81         default y
 82         select PERCPU_RWSEM
 83         help
 84           This option enables standard file locking support, required
 85           for filesystems like NFS and for the flock() system
 86           call. Disabling this option saves about 11k.
 87 
 88 config MANDATORY_FILE_LOCKING
 89         bool "Enable Mandatory file locking"
 90         depends on FILE_LOCKING
 91         default y
 92         help
 93           This option enables files appropriately marked files on appropriely
 94           mounted filesystems to support mandatory locking.
 95 
 96           To the best of my knowledge this is dead code that no one cares about.
 97 
 98 source "fs/crypto/Kconfig"
 99 
100 source "fs/notify/Kconfig"
101 
102 source "fs/quota/Kconfig"
103 
104 source "fs/autofs4/Kconfig"
105 source "fs/fuse/Kconfig"
106 source "fs/overlayfs/Kconfig"
107 
108 menu "Caches"
109 
110 source "fs/fscache/Kconfig"
111 source "fs/cachefiles/Kconfig"
112 
113 endmenu
114 
115 if BLOCK
116 menu "CD-ROM/DVD Filesystems"
117 
118 source "fs/isofs/Kconfig"
119 source "fs/udf/Kconfig"
120 
121 endmenu
122 endif # BLOCK
123 
124 if BLOCK
125 menu "DOS/FAT/NT Filesystems"
126 
127 source "fs/fat/Kconfig"
128 source "fs/ntfs/Kconfig"
129 
130 endmenu
131 endif # BLOCK
132 
133 menu "Pseudo filesystems"
134 
135 source "fs/proc/Kconfig"
136 source "fs/kernfs/Kconfig"
137 source "fs/sysfs/Kconfig"
138 
139 config TMPFS
140         bool "Tmpfs virtual memory file system support (former shm fs)"
141         depends on SHMEM
142         help
143           Tmpfs is a file system which keeps all files in virtual memory.
144 
145           Everything in tmpfs is temporary in the sense that no files will be
146           created on your hard drive. The files live in memory and swap
147           space. If you unmount a tmpfs instance, everything stored therein is
148           lost.
149 
150           See <file:Documentation/filesystems/tmpfs.txt> for details.
151 
152 config TMPFS_POSIX_ACL
153         bool "Tmpfs POSIX Access Control Lists"
154         depends on TMPFS
155         select TMPFS_XATTR
156         select FS_POSIX_ACL
157         help
158           POSIX Access Control Lists (ACLs) support additional access rights
159           for users and groups beyond the standard owner/group/world scheme,
160           and this option selects support for ACLs specifically for tmpfs
161           filesystems.
162 
163           If you've selected TMPFS, it's possible that you'll also need
164           this option as there are a number of Linux distros that require
165           POSIX ACL support under /dev for certain features to work properly.
166           For example, some distros need this feature for ALSA-related /dev
167           files for sound to work properly.  In short, if you're not sure,
168           say Y.
169 
170           To learn more about Access Control Lists, visit the POSIX ACLs for
171           Linux website <http://acl.bestbits.at/>.
172 
173 config TMPFS_XATTR
174         bool "Tmpfs extended attributes"
175         depends on TMPFS
176         default n
177         help
178           Extended attributes are name:value pairs associated with inodes by
179           the kernel or by users (see the attr(5) manual page, or visit
180           <http://acl.bestbits.at/> for details).
181 
182           Currently this enables support for the trusted.* and
183           security.* namespaces.
184 
185           You need this for POSIX ACL support on tmpfs.
186 
187           If unsure, say N.
188 
189 config HUGETLBFS
190         bool "HugeTLB file system support"
191         depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
192                    SYS_SUPPORTS_HUGETLBFS || BROKEN
193         help
194           hugetlbfs is a filesystem backing for HugeTLB pages, based on
195           ramfs. For architectures that support it, say Y here and read
196           <file:Documentation/vm/hugetlbpage.txt> for details.
197 
198           If unsure, say N.
199 
200 config HUGETLB_PAGE
201         def_bool HUGETLBFS
202 
203 config ARCH_HAS_GIGANTIC_PAGE
204         bool
205 
206 source "fs/configfs/Kconfig"
207 source "fs/efivarfs/Kconfig"
208 
209 endmenu
210 
211 menuconfig MISC_FILESYSTEMS
212         bool "Miscellaneous filesystems"
213         default y
214         ---help---
215           Say Y here to get to see options for various miscellaneous
216           filesystems, such as filesystems that came from other
217           operating systems.
218 
219           This option alone does not add any kernel code.
220 
221           If you say N, all options in this submenu will be skipped and
222           disabled; if unsure, say Y here.
223 
224 if MISC_FILESYSTEMS
225 
226 source "fs/orangefs/Kconfig"
227 source "fs/adfs/Kconfig"
228 source "fs/affs/Kconfig"
229 source "fs/ecryptfs/Kconfig"
230 source "fs/hfs/Kconfig"
231 source "fs/hfsplus/Kconfig"
232 source "fs/befs/Kconfig"
233 source "fs/bfs/Kconfig"
234 source "fs/efs/Kconfig"
235 source "fs/jffs2/Kconfig"
236 # UBIFS File system configuration
237 source "fs/ubifs/Kconfig"
238 source "fs/logfs/Kconfig"
239 source "fs/cramfs/Kconfig"
240 source "fs/squashfs/Kconfig"
241 source "fs/freevxfs/Kconfig"
242 source "fs/minix/Kconfig"
243 source "fs/omfs/Kconfig"
244 source "fs/hpfs/Kconfig"
245 source "fs/qnx4/Kconfig"
246 source "fs/qnx6/Kconfig"
247 source "fs/romfs/Kconfig"
248 source "fs/pstore/Kconfig"
249 source "fs/sysv/Kconfig"
250 source "fs/ufs/Kconfig"
251 source "fs/exofs/Kconfig"
252 
253 endif # MISC_FILESYSTEMS
254 
255 source "fs/exofs/Kconfig.ore"
256 
257 menuconfig NETWORK_FILESYSTEMS
258         bool "Network File Systems"
259         default y
260         depends on NET
261         ---help---
262           Say Y here to get to see options for network filesystems and
263           filesystem-related networking code, such as NFS daemon and
264           RPCSEC security modules.
265 
266           This option alone does not add any kernel code.
267 
268           If you say N, all options in this submenu will be skipped and
269           disabled; if unsure, say Y here.
270 
271 if NETWORK_FILESYSTEMS
272 
273 source "fs/nfs/Kconfig"
274 source "fs/nfsd/Kconfig"
275 
276 config GRACE_PERIOD
277         tristate
278 
279 config LOCKD
280         tristate
281         depends on FILE_LOCKING
282         select GRACE_PERIOD
283 
284 config LOCKD_V4
285         bool
286         depends on NFSD_V3 || NFS_V3
287         depends on FILE_LOCKING
288         default y
289 
290 config NFS_ACL_SUPPORT
291         tristate
292         select FS_POSIX_ACL
293 
294 config NFS_COMMON
295         bool
296         depends on NFSD || NFS_FS || LOCKD
297         default y
298 
299 source "net/sunrpc/Kconfig"
300 source "fs/ceph/Kconfig"
301 source "fs/cifs/Kconfig"
302 source "fs/ncpfs/Kconfig"
303 source "fs/coda/Kconfig"
304 source "fs/afs/Kconfig"
305 source "fs/9p/Kconfig"
306 
307 endif # NETWORK_FILESYSTEMS
308 
309 source "fs/nls/Kconfig"
310 source "fs/dlm/Kconfig"
311 
312 endmenu

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