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
61 # Selected by DAX drivers that do not expect filesystem DAX to support
62 # get_user_pages() of DAX mappings. I.e. "limited" indicates no support
63 # for fork() of processes with MAP_SHARED mappings or support for
64 # direct-I/O to a DAX mapping.
70 # Posix ACL utility routines
72 # Note: Posix ACLs can be implemented without these helpers. Never use
73 # this symbol for ifdefs in core code.
81 config EXPORTFS_BLOCK_OPS
82 bool "Enable filesystem export operations for block IO"
84 This option enables the export operations for a filesystem to support
88 bool "Enable POSIX file locking API" if EXPERT
91 This option enables standard file locking support, required
92 for filesystems like NFS and for the flock() system
93 call. Disabling this option saves about 11k.
95 config MANDATORY_FILE_LOCKING
96 bool "Enable Mandatory file locking"
97 depends on FILE_LOCKING
100 This option enables files appropriately marked files on appropriely
101 mounted filesystems to support mandatory locking.
103 To the best of my knowledge this is dead code that no one cares about.
105 source "fs/crypto/Kconfig"
107 source "fs/notify/Kconfig"
109 source "fs/quota/Kconfig"
111 source "fs/autofs4/Kconfig"
112 source "fs/fuse/Kconfig"
113 source "fs/overlayfs/Kconfig"
117 source "fs/fscache/Kconfig"
118 source "fs/cachefiles/Kconfig"
123 menu "CD-ROM/DVD Filesystems"
125 source "fs/isofs/Kconfig"
126 source "fs/udf/Kconfig"
132 menu "DOS/FAT/NT Filesystems"
134 source "fs/fat/Kconfig"
135 source "fs/ntfs/Kconfig"
140 menu "Pseudo filesystems"
142 source "fs/proc/Kconfig"
143 source "fs/kernfs/Kconfig"
144 source "fs/sysfs/Kconfig"
147 bool "Tmpfs virtual memory file system support (former shm fs)"
150 Tmpfs is a file system which keeps all files in virtual memory.
152 Everything in tmpfs is temporary in the sense that no files will be
153 created on your hard drive. The files live in memory and swap
154 space. If you unmount a tmpfs instance, everything stored therein is
157 See <file:Documentation/filesystems/tmpfs.txt> for details.
159 config TMPFS_POSIX_ACL
160 bool "Tmpfs POSIX Access Control Lists"
165 POSIX Access Control Lists (ACLs) support additional access rights
166 for users and groups beyond the standard owner/group/world scheme,
167 and this option selects support for ACLs specifically for tmpfs
170 If you've selected TMPFS, it's possible that you'll also need
171 this option as there are a number of Linux distros that require
172 POSIX ACL support under /dev for certain features to work properly.
173 For example, some distros need this feature for ALSA-related /dev
174 files for sound to work properly. In short, if you're not sure,
178 bool "Tmpfs extended attributes"
182 Extended attributes are name:value pairs associated with inodes by
183 the kernel or by users (see the attr(5) manual page for details).
185 Currently this enables support for the trusted.* and
186 security.* namespaces.
188 You need this for POSIX ACL support on tmpfs.
193 bool "HugeTLB file system support"
194 depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
195 SYS_SUPPORTS_HUGETLBFS || BROKEN
197 hugetlbfs is a filesystem backing for HugeTLB pages, based on
198 ramfs. For architectures that support it, say Y here and read
199 <file:Documentation/vm/hugetlbpage.txt> for details.
206 config ARCH_HAS_GIGANTIC_PAGE
209 source "fs/configfs/Kconfig"
210 source "fs/efivarfs/Kconfig"
214 menuconfig MISC_FILESYSTEMS
215 bool "Miscellaneous filesystems"
218 Say Y here to get to see options for various miscellaneous
219 filesystems, such as filesystems that came from other
222 This option alone does not add any kernel code.
224 If you say N, all options in this submenu will be skipped and
225 disabled; if unsure, say Y here.
229 source "fs/orangefs/Kconfig"
230 source "fs/adfs/Kconfig"
231 source "fs/affs/Kconfig"
232 source "fs/ecryptfs/Kconfig"
233 source "fs/hfs/Kconfig"
234 source "fs/hfsplus/Kconfig"
235 source "fs/befs/Kconfig"
236 source "fs/bfs/Kconfig"
237 source "fs/efs/Kconfig"
238 source "fs/jffs2/Kconfig"
239 # UBIFS File system configuration
240 source "fs/ubifs/Kconfig"
241 source "fs/cramfs/Kconfig"
242 source "fs/squashfs/Kconfig"
243 source "fs/freevxfs/Kconfig"
244 source "fs/minix/Kconfig"
245 source "fs/omfs/Kconfig"
246 source "fs/hpfs/Kconfig"
247 source "fs/qnx4/Kconfig"
248 source "fs/qnx6/Kconfig"
249 source "fs/romfs/Kconfig"
250 source "fs/pstore/Kconfig"
251 source "fs/sysv/Kconfig"
252 source "fs/ufs/Kconfig"
253 source "fs/exofs/Kconfig"
255 endif # MISC_FILESYSTEMS
257 source "fs/exofs/Kconfig.ore"
259 menuconfig NETWORK_FILESYSTEMS
260 bool "Network File Systems"
264 Say Y here to get to see options for network filesystems and
265 filesystem-related networking code, such as NFS daemon and
266 RPCSEC security modules.
268 This option alone does not add any kernel code.
270 If you say N, all options in this submenu will be skipped and
271 disabled; if unsure, say Y here.
273 if NETWORK_FILESYSTEMS
275 source "fs/nfs/Kconfig"
276 source "fs/nfsd/Kconfig"
283 depends on FILE_LOCKING
288 depends on NFSD_V3 || NFS_V3
289 depends on FILE_LOCKING
292 config NFS_ACL_SUPPORT
298 depends on NFSD || NFS_FS || LOCKD
301 source "net/sunrpc/Kconfig"
302 source "fs/ceph/Kconfig"
303 source "fs/cifs/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"