fs/xfs/Kconfig

   1 config XFS_FS
   2         tristate "XFS filesystem support"
   3         depends on BLOCK
   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_QUOTA
  22         bool "XFS Quota support"
  23         depends on XFS_FS
  24         help
  25           If you say Y here, you will be able to set limits for disk usage on
  26           a per user and/or a per group basis under XFS.  XFS considers quota
  27           information as filesystem metadata and uses journaling to provide a
  28           higher level guarantee of consistency.  The on-disk data format for
  29           quota is also compatible with the IRIX version of XFS, allowing a
  30           filesystem to be migrated between Linux and IRIX without any need
  31           for conversion.
  32
  33           If unsure, say N.  More comprehensive documentation can be found in
  34           README.quota in the xfsprogs package.  XFS quota can be used either
  35           with or without the generic quota support enabled (CONFIG_QUOTA) -
  36           they are completely independent subsystems.
  37
  38 config XFS_SECURITY
  39         bool "XFS Security Label support"
  40         depends on XFS_FS
  41         help
  42           Security labels support alternative access control models
  43           implemented by security modules like SELinux.  This option
  44           enables an extended attribute namespace for inode security
  45           labels in the XFS filesystem.
  46
  47           If you are not using a security module that requires using
  48           extended attributes for inode security labels, say N.
  49
  50 config XFS_POSIX_ACL
  51         bool "XFS POSIX ACL support"
  52         depends on XFS_FS
  53         help
  54           POSIX Access Control Lists (ACLs) support permissions for users and
  55           groups beyond the owner/group/world scheme.
  56
  57           To learn more about Access Control Lists, visit the POSIX ACLs for
  58           Linux website <http://acl.bestbits.at/>.
  59
  60           If you don't know what Access Control Lists are, say N.
  61
  62 config XFS_RT
  63         bool "XFS Realtime subvolume support"
  64         depends on XFS_FS
  65         help
  66           If you say Y here you will be able to mount and use XFS filesystems
  67           which contain a realtime subvolume.  The realtime subvolume is a
  68           separate area of disk space where only file data is stored.  It was
  69           originally designed to provide deterministic data rates suitable
  70           for media streaming applications, but is also useful as a generic
  71           mechanism for ensuring data and metadata/log I/Os are completely
  72           separated.  Regular file I/Os are isolated to a separate device
  73           from all other requests, and this can be done quite transparently
  74           to applications via the inherit-realtime directory inode flag.
  75
  76           See the xfs man page in section 5 for additional information.
  77
  78           If unsure, say N.