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)
44 Direct Access (DAX) can be used on memory-backed block devices.
45 If the block device supports DAX and the filesystem supports DAX,
46 then you can avoid using the pagecache to buffer I/Os. Turning
47 on this option will compile in support for DAX; you will need to
48 mount the filesystem using the -o dax option.
50 If you do not have a block device that is capable of using this,
51 or if unsure, say N. Saying Y will increase the size of the kernel
58 depends on ZONE_DEVICE
59 depends on TRANSPARENT_HUGEPAGE
63 # Posix ACL utility routines
65 # Note: Posix ACLs can be implemented without these helpers. Never use
66 # this symbol for ifdefs in core code.
74 config EXPORTFS_BLOCK_OPS
75 bool "Enable filesystem export operations for block IO"
77 This option enables the export operations for a filesystem to support
81 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/exfat/Kconfig"
129 source "fs/ntfs/Kconfig"
134 menu "Pseudo filesystems"
136 source "fs/proc/Kconfig"
137 source "fs/kernfs/Kconfig"
138 source "fs/sysfs/Kconfig"
141 bool "Tmpfs virtual memory file system support (former shm fs)"
144 Tmpfs is a file system which keeps all files in virtual memory.
146 Everything in tmpfs is temporary in the sense that no files will be
147 created on your hard drive. The files live in memory and swap
148 space. If you unmount a tmpfs instance, everything stored therein is
151 See <file:Documentation/filesystems/tmpfs.txt> for details.
153 config TMPFS_POSIX_ACL
154 bool "Tmpfs POSIX Access Control Lists"
159 POSIX Access Control Lists (ACLs) support additional access rights
160 for users and groups beyond the standard owner/group/world scheme,
161 and this option selects support for ACLs specifically for tmpfs
164 If you've selected TMPFS, it's possible that you'll also need
165 this option as there are a number of Linux distros that require
166 POSIX ACL support under /dev for certain features to work properly.
167 For example, some distros need this feature for ALSA-related /dev
168 files for sound to work properly. In short, if you're not sure,
171 To learn more about Access Control Lists, visit the POSIX ACLs for
172 Linux website <http://acl.bestbits.at/>.
175 bool "Tmpfs extended attributes"
179 Extended attributes are name:value pairs associated with inodes by
180 the kernel or by users (see the attr(5) manual page, or visit
181 <http://acl.bestbits.at/> for details).
183 Currently this enables support for the trusted.* and
184 security.* namespaces.
186 You need this for POSIX ACL support on tmpfs.
191 bool "HugeTLB file system support"
192 depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
193 SYS_SUPPORTS_HUGETLBFS || BROKEN
195 hugetlbfs is a filesystem backing for HugeTLB pages, based on
196 ramfs. For architectures that support it, say Y here and read
197 <file:Documentation/vm/hugetlbpage.txt> for details.
204 config ARCH_HAS_GIGANTIC_PAGE
207 source "fs/configfs/Kconfig"
208 source "fs/efivarfs/Kconfig"
212 menuconfig MISC_FILESYSTEMS
213 bool "Miscellaneous filesystems"
216 Say Y here to get to see options for various miscellaneous
217 filesystems, such as filesystems that came from other
220 This option alone does not add any kernel code.
222 If you say N, all options in this submenu will be skipped and
223 disabled; if unsure, say Y here.
227 source "fs/orangefs/Kconfig"
228 source "fs/adfs/Kconfig"
229 source "fs/affs/Kconfig"
230 source "fs/ecryptfs/Kconfig"
231 source "fs/sdcardfs/Kconfig"
232 source "fs/hfs/Kconfig"
233 source "fs/hfsplus/Kconfig"
234 source "fs/befs/Kconfig"
235 source "fs/bfs/Kconfig"
236 source "fs/efs/Kconfig"
237 source "fs/jffs2/Kconfig"
238 # UBIFS File system configuration
239 source "fs/ubifs/Kconfig"
240 source "fs/cramfs/Kconfig"
241 source "fs/squashfs/Kconfig"
242 source "fs/freevxfs/Kconfig"
243 source "fs/minix/Kconfig"
244 source "fs/omfs/Kconfig"
245 source "fs/hpfs/Kconfig"
246 source "fs/qnx4/Kconfig"
247 source "fs/qnx6/Kconfig"
248 source "fs/romfs/Kconfig"
249 source "fs/pstore/Kconfig"
250 source "fs/sysv/Kconfig"
251 source "fs/ufs/Kconfig"
252 source "fs/exofs/Kconfig"
254 endif # MISC_FILESYSTEMS
256 source "fs/exofs/Kconfig.ore"
258 menuconfig NETWORK_FILESYSTEMS
259 bool "Network File Systems"
263 Say Y here to get to see options for network filesystems and
264 filesystem-related networking code, such as NFS daemon and
265 RPCSEC security modules.
267 This option alone does not add any kernel code.
269 If you say N, all options in this submenu will be skipped and
270 disabled; if unsure, say Y here.
272 if NETWORK_FILESYSTEMS
274 source "fs/nfs/Kconfig"
275 source "fs/nfsd/Kconfig"
282 depends on FILE_LOCKING
287 depends on NFSD_V3 || NFS_V3
288 depends on FILE_LOCKING
291 config NFS_ACL_SUPPORT
297 depends on NFSD || NFS_FS || LOCKD
300 source "net/sunrpc/Kconfig"
301 source "fs/ceph/Kconfig"
302 source "fs/cifs/Kconfig"
303 source "fs/ncpfs/Kconfig"
304 source "fs/coda/Kconfig"
305 source "fs/afs/Kconfig"
306 source "fs/9p/Kconfig"
308 endif # NETWORK_FILESYSTEMS
310 source "fs/nls/Kconfig"
311 source "fs/dlm/Kconfig"