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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 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

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