2 # File system configuration
7 # Use unaligned word dcache accesses
8 config DCACHE_WORD_ACCESS
16 source "fs/ext2/Kconfig"
17 source "fs/ext4/Kconfig"
18 source "fs/jbd2/Kconfig"
21 # Meta block cache for Extended Attributes (ext2/ext3/ext4)
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
27 source "fs/reiserfs/Kconfig"
28 source "fs/jfs/Kconfig"
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"
38 bool "Direct Access (DAX) support"
40 depends on !(ARM || MIPS || SPARC)
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.
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
56 depends on ZONE_DEVICE
57 depends on TRANSPARENT_HUGEPAGE
62 # Posix ACL utility routines
64 # Note: Posix ACLs can be implemented without these helpers. Never use
65 # this symbol for ifdefs in core code.
73 config EXPORTFS_BLOCK_OPS
74 bool "Enable filesystem export operations for block IO"
76 This option enables the export operations for a filesystem to support
80 bool "Enable POSIX file locking API" if EXPERT
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.
88 config MANDATORY_FILE_LOCKING
89 bool "Enable Mandatory file locking"
90 depends on FILE_LOCKING
93 This option enables files appropriately marked files on appropriely
94 mounted filesystems to support mandatory locking.
96 To the best of my knowledge this is dead code that no one cares about.
98 source "fs/crypto/Kconfig"
100 source "fs/notify/Kconfig"
102 source "fs/quota/Kconfig"
104 source "fs/autofs4/Kconfig"
105 source "fs/fuse/Kconfig"
106 source "fs/overlayfs/Kconfig"
110 source "fs/fscache/Kconfig"
111 source "fs/cachefiles/Kconfig"
116 menu "CD-ROM/DVD Filesystems"
118 source "fs/isofs/Kconfig"
119 source "fs/udf/Kconfig"
125 menu "DOS/FAT/NT Filesystems"
127 source "fs/fat/Kconfig"
128 source "fs/ntfs/Kconfig"
133 menu "Pseudo filesystems"
135 source "fs/proc/Kconfig"
136 source "fs/kernfs/Kconfig"
137 source "fs/sysfs/Kconfig"
140 bool "Tmpfs virtual memory file system support (former shm fs)"
143 Tmpfs is a file system which keeps all files in virtual memory.
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
150 See <file:Documentation/filesystems/tmpfs.txt> for details.
152 config TMPFS_POSIX_ACL
153 bool "Tmpfs POSIX Access Control Lists"
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
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,
170 To learn more about Access Control Lists, visit the POSIX ACLs for
171 Linux website <http://acl.bestbits.at/>.
174 bool "Tmpfs extended attributes"
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).
182 Currently this enables support for the trusted.* and
183 security.* namespaces.
185 You need this for POSIX ACL support on tmpfs.
190 bool "HugeTLB file system support"
191 depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
192 SYS_SUPPORTS_HUGETLBFS || BROKEN
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.
203 config ARCH_HAS_GIGANTIC_PAGE
206 source "fs/configfs/Kconfig"
207 source "fs/efivarfs/Kconfig"
211 menuconfig MISC_FILESYSTEMS
212 bool "Miscellaneous filesystems"
215 Say Y here to get to see options for various miscellaneous
216 filesystems, such as filesystems that came from other
219 This option alone does not add any kernel code.
221 If you say N, all options in this submenu will be skipped and
222 disabled; if unsure, say Y here.
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"
253 endif # MISC_FILESYSTEMS
255 source "fs/exofs/Kconfig.ore"
257 menuconfig NETWORK_FILESYSTEMS
258 bool "Network File Systems"
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.
266 This option alone does not add any kernel code.
268 If you say N, all options in this submenu will be skipped and
269 disabled; if unsure, say Y here.
271 if NETWORK_FILESYSTEMS
273 source "fs/nfs/Kconfig"
274 source "fs/nfsd/Kconfig"
281 depends on FILE_LOCKING
286 depends on NFSD_V3 || NFS_V3
287 depends on FILE_LOCKING
290 config NFS_ACL_SUPPORT
296 depends on NFSD || NFS_FS || LOCKD
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"
307 endif # NETWORK_FILESYSTEMS
309 source "fs/nls/Kconfig"
310 source "fs/dlm/Kconfig"