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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/ext3/Kconfig"
 15 source "fs/ext4/Kconfig"
 16 source "fs/jbd/Kconfig"
 17 source "fs/jbd2/Kconfig"
 18 
 19 config FS_MBCACHE
 20 # Meta block cache for Extended Attributes (ext2/ext3/ext4)
 21         tristate
 22         default y if EXT2_FS=y && EXT2_FS_XATTR
 23         default y if EXT3_FS=y && EXT3_FS_XATTR
 24         default y if EXT4_FS=y
 25         default m if EXT2_FS_XATTR || EXT3_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 endif # BLOCK
 53 
 54 # Posix ACL utility routines
 55 #
 56 # Note: Posix ACLs can be implemented without these helpers.  Never use
 57 # this symbol for ifdefs in core code.
 58 #
 59 config FS_POSIX_ACL
 60         def_bool n
 61 
 62 config EXPORTFS
 63         tristate
 64 
 65 config FILE_LOCKING
 66         bool "Enable POSIX file locking API" if EXPERT
 67         default y
 68         help
 69           This option enables standard file locking support, required
 70           for filesystems like NFS and for the flock() system
 71           call. Disabling this option saves about 11k.
 72 
 73 source "fs/notify/Kconfig"
 74 
 75 source "fs/quota/Kconfig"
 76 
 77 source "fs/autofs4/Kconfig"
 78 source "fs/fuse/Kconfig"
 79 source "fs/overlayfs/Kconfig"
 80 
 81 menu "Caches"
 82 
 83 source "fs/fscache/Kconfig"
 84 source "fs/cachefiles/Kconfig"
 85 
 86 endmenu
 87 
 88 if BLOCK
 89 menu "CD-ROM/DVD Filesystems"
 90 
 91 source "fs/isofs/Kconfig"
 92 source "fs/udf/Kconfig"
 93 
 94 endmenu
 95 endif # BLOCK
 96 
 97 if BLOCK
 98 menu "DOS/FAT/NT Filesystems"
 99 
100 source "fs/fat/Kconfig"
101 source "fs/ntfs/Kconfig"
102 
103 endmenu
104 endif # BLOCK
105 
106 menu "Pseudo filesystems"
107 
108 source "fs/proc/Kconfig"
109 source "fs/kernfs/Kconfig"
110 source "fs/sysfs/Kconfig"
111 
112 config TMPFS
113         bool "Tmpfs virtual memory file system support (former shm fs)"
114         depends on SHMEM
115         help
116           Tmpfs is a file system which keeps all files in virtual memory.
117 
118           Everything in tmpfs is temporary in the sense that no files will be
119           created on your hard drive. The files live in memory and swap
120           space. If you unmount a tmpfs instance, everything stored therein is
121           lost.
122 
123           See <file:Documentation/filesystems/tmpfs.txt> for details.
124 
125 config TMPFS_POSIX_ACL
126         bool "Tmpfs POSIX Access Control Lists"
127         depends on TMPFS
128         select TMPFS_XATTR
129         select FS_POSIX_ACL
130         help
131           POSIX Access Control Lists (ACLs) support additional access rights
132           for users and groups beyond the standard owner/group/world scheme,
133           and this option selects support for ACLs specifically for tmpfs
134           filesystems.
135 
136           If you've selected TMPFS, it's possible that you'll also need
137           this option as there are a number of Linux distros that require
138           POSIX ACL support under /dev for certain features to work properly.
139           For example, some distros need this feature for ALSA-related /dev
140           files for sound to work properly.  In short, if you're not sure,
141           say Y.
142 
143           To learn more about Access Control Lists, visit the POSIX ACLs for
144           Linux website <http://acl.bestbits.at/>.
145 
146 config TMPFS_XATTR
147         bool "Tmpfs extended attributes"
148         depends on TMPFS
149         default n
150         help
151           Extended attributes are name:value pairs associated with inodes by
152           the kernel or by users (see the attr(5) manual page, or visit
153           <http://acl.bestbits.at/> for details).
154 
155           Currently this enables support for the trusted.* and
156           security.* namespaces.
157 
158           You need this for POSIX ACL support on tmpfs.
159 
160           If unsure, say N.
161 
162 config HUGETLBFS
163         bool "HugeTLB file system support"
164         depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
165                    SYS_SUPPORTS_HUGETLBFS || BROKEN
166         help
167           hugetlbfs is a filesystem backing for HugeTLB pages, based on
168           ramfs. For architectures that support it, say Y here and read
169           <file:Documentation/vm/hugetlbpage.txt> for details.
170 
171           If unsure, say N.
172 
173 config HUGETLB_PAGE
174         def_bool HUGETLBFS
175 
176 source "fs/configfs/Kconfig"
177 source "fs/efivarfs/Kconfig"
178 
179 endmenu
180 
181 menuconfig MISC_FILESYSTEMS
182         bool "Miscellaneous filesystems"
183         default y
184         ---help---
185           Say Y here to get to see options for various miscellaneous
186           filesystems, such as filesystems that came from other
187           operating systems.
188 
189           This option alone does not add any kernel code.
190 
191           If you say N, all options in this submenu will be skipped and
192           disabled; if unsure, say Y here.
193 
194 if MISC_FILESYSTEMS
195 
196 source "fs/adfs/Kconfig"
197 source "fs/affs/Kconfig"
198 source "fs/ecryptfs/Kconfig"
199 source "fs/hfs/Kconfig"
200 source "fs/hfsplus/Kconfig"
201 source "fs/befs/Kconfig"
202 source "fs/bfs/Kconfig"
203 source "fs/efs/Kconfig"
204 source "fs/jffs2/Kconfig"
205 # UBIFS File system configuration
206 source "fs/ubifs/Kconfig"
207 source "fs/logfs/Kconfig"
208 source "fs/cramfs/Kconfig"
209 source "fs/squashfs/Kconfig"
210 source "fs/freevxfs/Kconfig"
211 source "fs/minix/Kconfig"
212 source "fs/omfs/Kconfig"
213 source "fs/hpfs/Kconfig"
214 source "fs/qnx4/Kconfig"
215 source "fs/qnx6/Kconfig"
216 source "fs/romfs/Kconfig"
217 source "fs/pstore/Kconfig"
218 source "fs/sysv/Kconfig"
219 source "fs/ufs/Kconfig"
220 source "fs/exofs/Kconfig"
221 
222 endif # MISC_FILESYSTEMS
223 
224 source "fs/exofs/Kconfig.ore"
225 
226 menuconfig NETWORK_FILESYSTEMS
227         bool "Network File Systems"
228         default y
229         depends on NET
230         ---help---
231           Say Y here to get to see options for network filesystems and
232           filesystem-related networking code, such as NFS daemon and
233           RPCSEC security modules.
234 
235           This option alone does not add any kernel code.
236 
237           If you say N, all options in this submenu will be skipped and
238           disabled; if unsure, say Y here.
239 
240 if NETWORK_FILESYSTEMS
241 
242 source "fs/nfs/Kconfig"
243 source "fs/nfsd/Kconfig"
244 
245 config GRACE_PERIOD
246         tristate
247 
248 config LOCKD
249         tristate
250         depends on FILE_LOCKING
251         select GRACE_PERIOD
252 
253 config LOCKD_V4
254         bool
255         depends on NFSD_V3 || NFS_V3
256         depends on FILE_LOCKING
257         default y
258 
259 config NFS_ACL_SUPPORT
260         tristate
261         select FS_POSIX_ACL
262 
263 config NFS_COMMON
264         bool
265         depends on NFSD || NFS_FS || LOCKD
266         default y
267 
268 source "net/sunrpc/Kconfig"
269 source "fs/ceph/Kconfig"
270 source "fs/cifs/Kconfig"
271 source "fs/ncpfs/Kconfig"
272 source "fs/coda/Kconfig"
273 source "fs/afs/Kconfig"
274 source "fs/9p/Kconfig"
275 
276 endif # NETWORK_FILESYSTEMS
277 
278 source "fs/nls/Kconfig"
279 source "fs/dlm/Kconfig"
280 
281 endmenu

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