Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | config XFS_FS |
2 | tristate "XFS filesystem support" | |
9361401e | 3 | depends on BLOCK |
d296d30a | 4 | select EXPORTFS |
bc02e869 | 5 | select LIBCRC32C |
1da177e4 LT |
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 | ||
1da177e4 | 23 | config XFS_QUOTA |
538524ae | 24 | bool "XFS Quota support" |
1da177e4 | 25 | depends on XFS_FS |
80f44b15 | 26 | select QUOTACTL |
1da177e4 LT |
27 | help |
28 | If you say Y here, you will be able to set limits for disk usage on | |
29 | a per user and/or a per group basis under XFS. XFS considers quota | |
30 | information as filesystem metadata and uses journaling to provide a | |
31 | higher level guarantee of consistency. The on-disk data format for | |
32 | quota is also compatible with the IRIX version of XFS, allowing a | |
33 | filesystem to be migrated between Linux and IRIX without any need | |
34 | for conversion. | |
35 | ||
36 | If unsure, say N. More comprehensive documentation can be found in | |
37 | README.quota in the xfsprogs package. XFS quota can be used either | |
38 | with or without the generic quota support enabled (CONFIG_QUOTA) - | |
39 | they are completely independent subsystems. | |
40 | ||
1da177e4 | 41 | config XFS_POSIX_ACL |
20ba0287 | 42 | bool "XFS POSIX ACL support" |
1da177e4 | 43 | depends on XFS_FS |
ef14f0c1 | 44 | select FS_POSIX_ACL |
1da177e4 LT |
45 | help |
46 | POSIX Access Control Lists (ACLs) support permissions for users and | |
47 | groups beyond the owner/group/world scheme. | |
48 | ||
49 | To learn more about Access Control Lists, visit the POSIX ACLs for | |
50 | Linux website <http://acl.bestbits.at/>. | |
51 | ||
52 | If you don't know what Access Control Lists are, say N. | |
53 | ||
20ba0287 | 54 | config XFS_RT |
d7ede1aa NS |
55 | bool "XFS Realtime subvolume support" |
56 | depends on XFS_FS | |
20ba0287 NS |
57 | help |
58 | If you say Y here you will be able to mount and use XFS filesystems | |
d7ede1aa NS |
59 | which contain a realtime subvolume. The realtime subvolume is a |
60 | separate area of disk space where only file data is stored. It was | |
61 | originally designed to provide deterministic data rates suitable | |
62 | for media streaming applications, but is also useful as a generic | |
63 | mechanism for ensuring data and metadata/log I/Os are completely | |
64 | separated. Regular file I/Os are isolated to a separate device | |
65 | from all other requests, and this can be done quite transparently | |
66 | to applications via the inherit-realtime directory inode flag. | |
20ba0287 | 67 | |
d7ede1aa | 68 | See the xfs man page in section 5 for additional information. |
20ba0287 NS |
69 | |
70 | If unsure, say N. | |
7788fae6 | 71 | |
742ae1e3 DC |
72 | config XFS_WARN |
73 | bool "XFS Verbose Warnings" | |
74 | depends on XFS_FS && !XFS_DEBUG | |
75 | help | |
76 | Say Y here to get an XFS build with many additional warnings. | |
77 | It converts ASSERT checks to WARN, so will log any out-of-bounds | |
78 | conditions that occur that would otherwise be missed. It is much | |
79 | lighter weight than XFS_DEBUG and does not modify algorithms and will | |
80 | not cause the kernel to panic on non-fatal errors. | |
81 | ||
82 | However, similar to XFS_DEBUG, it is only advisable to use this if you | |
83 | are debugging a particular problem. | |
84 | ||
7788fae6 | 85 | config XFS_DEBUG |
d9777b8d KC |
86 | bool "XFS Debugging support" |
87 | depends on XFS_FS | |
7788fae6 CH |
88 | help |
89 | Say Y here to get an XFS build with many debugging features, | |
90 | including ASSERT checks, function wrappers around macros, | |
91 | and extra sanity-checking functions in various code paths. | |
92 | ||
93 | Note that the resulting code will be HUGE and SLOW, and probably | |
94 | not useful unless you are debugging a particular problem. | |
95 | ||
96 | Say N unless you are an XFS developer, or you play one on TV. |