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1 | config XFS_FS |
2 | tristate "XFS filesystem support" |
3 | depends on BLOCK |
4 | select EXPORTFS |
5 | help |
6 | XFS is a high performance journaling filesystem which originated |
7 | on the SGI IRIX platform. It is completely multi-threaded, can |
8 | support large files and large filesystems, extended attributes, |
9 | variable block sizes, is extent based, and makes extensive use of |
10 | Btrees (directories, extents, free space) to aid both performance |
11 | and scalability. |
12 | |
13 | Refer to the documentation at <http://oss.sgi.com/projects/xfs/> |
14 | for complete details. This implementation is on-disk compatible |
15 | with the IRIX version of XFS. |
16 | |
17 | To compile this file system support as a module, choose M here: the |
18 | module will be called xfs. Be aware, however, that if the file |
19 | system of your root partition is compiled as a module, you'll need |
20 | to use an initial ramdisk (initrd) to boot. |
21 | |
22 | config XFS_QUOTA |
23 | bool "XFS Quota support" |
24 | depends on XFS_FS |
25 | help |
26 | If you say Y here, you will be able to set limits for disk usage on |
27 | a per user and/or a per group basis under XFS. XFS considers quota |
28 | information as filesystem metadata and uses journaling to provide a |
29 | higher level guarantee of consistency. The on-disk data format for |
30 | quota is also compatible with the IRIX version of XFS, allowing a |
31 | filesystem to be migrated between Linux and IRIX without any need |
32 | for conversion. |
33 | |
34 | If unsure, say N. More comprehensive documentation can be found in |
35 | README.quota in the xfsprogs package. XFS quota can be used either |
36 | with or without the generic quota support enabled (CONFIG_QUOTA) - |
37 | they are completely independent subsystems. |
38 | |
39 | config XFS_POSIX_ACL |
40 | bool "XFS POSIX ACL support" |
41 | depends on XFS_FS |
42 | select FS_POSIX_ACL |
43 | help |
44 | POSIX Access Control Lists (ACLs) support permissions for users and |
45 | groups beyond the owner/group/world scheme. |
46 | |
47 | To learn more about Access Control Lists, visit the POSIX ACLs for |
48 | Linux website <http://acl.bestbits.at/>. |
49 | |
50 | If you don't know what Access Control Lists are, say N. |
51 | |
52 | config XFS_RT |
53 | bool "XFS Realtime subvolume support" |
54 | depends on XFS_FS |
55 | help |
56 | If you say Y here you will be able to mount and use XFS filesystems |
57 | which contain a realtime subvolume. The realtime subvolume is a |
58 | separate area of disk space where only file data is stored. It was |
59 | originally designed to provide deterministic data rates suitable |
60 | for media streaming applications, but is also useful as a generic |
61 | mechanism for ensuring data and metadata/log I/Os are completely |
62 | separated. Regular file I/Os are isolated to a separate device |
63 | from all other requests, and this can be done quite transparently |
64 | to applications via the inherit-realtime directory inode flag. |
65 | |
66 | See the xfs man page in section 5 for additional information. |
67 | |
68 | If unsure, say N. |
69 | |
70 | config XFS_DEBUG |
71 | bool "XFS Debugging support (EXPERIMENTAL)" |
72 | depends on XFS_FS && EXPERIMENTAL |
73 | help |
74 | Say Y here to get an XFS build with many debugging features, |
75 | including ASSERT checks, function wrappers around macros, |
76 | and extra sanity-checking functions in various code paths. |
77 | |
78 | Note that the resulting code will be HUGE and SLOW, and probably |
79 | not useful unless you are debugging a particular problem. |
80 | |
81 | Say N unless you are an XFS developer, or you play one on TV. |
82 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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v3.9