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Linus Torvalds1da177e2005-04-16 15:20:36 -07001menu "XFS support"
2
3config XFS_FS
4 tristate "XFS filesystem support"
5 select EXPORTFS if NFSD!=n
6 help
7 XFS is a high performance journaling filesystem which originated
8 on the SGI IRIX platform. It is completely multi-threaded, can
9 support large files and large filesystems, extended attributes,
10 variable block sizes, is extent based, and makes extensive use of
11 Btrees (directories, extents, free space) to aid both performance
12 and scalability.
13
14 Refer to the documentation at <http://oss.sgi.com/projects/xfs/>
15 for complete details. This implementation is on-disk compatible
16 with the IRIX version of XFS.
17
18 To compile this file system support as a module, choose M here: the
19 module will be called xfs. Be aware, however, that if the file
20 system of your root partition is compiled as a module, you'll need
21 to use an initial ramdisk (initrd) to boot.
22
23config XFS_EXPORT
24 bool
25 default y if XFS_FS && EXPORTFS
26
27config XFS_RT
28 bool "Realtime support (EXPERIMENTAL)"
29 depends on XFS_FS && EXPERIMENTAL
30 help
31 If you say Y here you will be able to mount and use XFS filesystems
32 which contain a realtime subvolume. The realtime subvolume is a
33 separate area of disk space where only file data is stored. The
34 realtime subvolume is designed to provide very deterministic
35 data rates suitable for media streaming applications.
36
37 See the xfs man page in section 5 for a bit more information.
38
39 This feature is unsupported at this time, is not yet fully
40 functional, and may cause serious problems.
41
42 If unsure, say N.
43
44config XFS_QUOTA
45 bool "Quota support"
46 depends on XFS_FS
47 help
48 If you say Y here, you will be able to set limits for disk usage on
49 a per user and/or a per group basis under XFS. XFS considers quota
50 information as filesystem metadata and uses journaling to provide a
51 higher level guarantee of consistency. The on-disk data format for
52 quota is also compatible with the IRIX version of XFS, allowing a
53 filesystem to be migrated between Linux and IRIX without any need
54 for conversion.
55
56 If unsure, say N. More comprehensive documentation can be found in
57 README.quota in the xfsprogs package. XFS quota can be used either
58 with or without the generic quota support enabled (CONFIG_QUOTA) -
59 they are completely independent subsystems.
60
61config XFS_SECURITY
62 bool "Security Label support"
63 depends on XFS_FS
64 help
65 Security labels support alternative access control models
66 implemented by security modules like SELinux. This option
67 enables an extended attribute namespace for inode security
68 labels in the XFS filesystem.
69
70 If you are not using a security module that requires using
71 extended attributes for inode security labels, say N.
72
73config XFS_POSIX_ACL
74 bool "POSIX ACL support"
75 depends on XFS_FS
76 help
77 POSIX Access Control Lists (ACLs) support permissions for users and
78 groups beyond the owner/group/world scheme.
79
80 To learn more about Access Control Lists, visit the POSIX ACLs for
81 Linux website <http://acl.bestbits.at/>.
82
83 If you don't know what Access Control Lists are, say N.
84
85endmenu