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1da177e4 LT |
1 | menu "XFS support" |
2 | ||
3 | config 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 | ||
23 | config XFS_EXPORT | |
24 | bool | |
25 | default y if XFS_FS && EXPORTFS | |
26 | ||
27 | config 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 | ||
44 | config 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 | ||
61 | config 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 | ||
73 | config 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 | ||
85 | endmenu |