projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | config XFS_FS |
| 2 | tristate "XFS filesystem support" | |
| 3 | select EXPORTFS if NFSD!=n | |
| 4 | help | |
| 5 | XFS is a high performance journaling filesystem which originated | |
| 6 | on the SGI IRIX platform. It is completely multi-threaded, can | |
| 7 | support large files and large filesystems, extended attributes, | |
| 8 | variable block sizes, is extent based, and makes extensive use of | |
| 9 | Btrees (directories, extents, free space) to aid both performance | |
| 10 | and scalability. | |
| 11 | ||
| 12 | Refer to the documentation at <http://oss.sgi.com/projects/xfs/> | |
| 13 | for complete details. This implementation is on-disk compatible | |
| 14 | with the IRIX version of XFS. | |
| 15 | ||
| 16 | To compile this file system support as a module, choose M here: the | |
| 17 | module will be called xfs. Be aware, however, that if the file | |
| 18 | system of your root partition is compiled as a module, you'll need | |
| 19 | to use an initial ramdisk (initrd) to boot. | |
| 20 | ||
| 21 | config XFS_EXPORT | |
| 22 | bool | |
| 20ba0287 NS |
23 | depends on XFS_FS && EXPORTFS |
| 24 | default y | |
| 1da177e4 LT |
25 | |
| 26 | config XFS_QUOTA | |
| 538524ae | 27 | bool "XFS Quota support" |
| 1da177e4 LT |
28 | depends on XFS_FS |
| 29 | help | |
| 30 | If you say Y here, you will be able to set limits for disk usage on | |
| 31 | a per user and/or a per group basis under XFS. XFS considers quota | |
| 32 | information as filesystem metadata and uses journaling to provide a | |
| 33 | higher level guarantee of consistency. The on-disk data format for | |
| 34 | quota is also compatible with the IRIX version of XFS, allowing a | |
| 35 | filesystem to be migrated between Linux and IRIX without any need | |
| 36 | for conversion. | |
| 37 | ||
| 38 | If unsure, say N. More comprehensive documentation can be found in | |
| 39 | README.quota in the xfsprogs package. XFS quota can be used either | |
| 40 | with or without the generic quota support enabled (CONFIG_QUOTA) - | |
| 41 | they are completely independent subsystems. | |
| 42 | ||
| 43 | config XFS_SECURITY | |
| 20ba0287 | 44 | bool "XFS Security Label support" |
| 1da177e4 LT |
45 | depends on XFS_FS |
| 46 | help | |
| 47 | Security labels support alternative access control models | |
| 48 | implemented by security modules like SELinux. This option | |
| 49 | enables an extended attribute namespace for inode security | |
| 50 | labels in the XFS filesystem. | |
| 51 | ||
| 52 | If you are not using a security module that requires using | |
| 53 | extended attributes for inode security labels, say N. | |
| 54 | ||
| 55 | config XFS_POSIX_ACL | |
| 20ba0287 | 56 | bool "XFS POSIX ACL support" |
| 1da177e4 LT |
57 | depends on XFS_FS |
| 58 | help | |
| 59 | POSIX Access Control Lists (ACLs) support permissions for users and | |
| 60 | groups beyond the owner/group/world scheme. | |
| 61 | ||
| 62 | To learn more about Access Control Lists, visit the POSIX ACLs for | |
| 63 | Linux website <http://acl.bestbits.at/>. | |
| 64 | ||
| 65 | If you don't know what Access Control Lists are, say N. | |
| 66 | ||
| 20ba0287 NS |
67 | config XFS_RT |
| 68 | bool "XFS Realtime support (EXPERIMENTAL)" | |
| 69 | depends on XFS_FS && EXPERIMENTAL | |
| 70 | help | |
| 71 | If you say Y here you will be able to mount and use XFS filesystems | |
| 72 | which contain a realtime subvolume. The realtime subvolume is a | |
| 73 | separate area of disk space where only file data is stored. The | |
| 74 | realtime subvolume is designed to provide very deterministic | |
| 75 | data rates suitable for media streaming applications. | |
| 76 | ||
| 77 | See the xfs man page in section 5 for a bit more information. | |
| 78 | ||
| 79 | This feature is unsupported at this time, is not yet fully | |
| 80 | functional, and may cause serious problems. | |
| 81 | ||
| 82 | If unsure, say N. |