Kconfig 3.1 KB

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  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. Refer to the documentation at <http://oss.sgi.com/projects/xfs/>
  12. for complete details. This implementation is on-disk compatible
  13. with the IRIX version of XFS.
  14. To compile this file system support as a module, choose M here: the
  15. module will be called xfs. Be aware, however, that if the file
  16. system of your root partition is compiled as a module, you'll need
  17. to use an initial ramdisk (initrd) to boot.
  18. config XFS_QUOTA
  19. bool "XFS Quota support"
  20. depends on XFS_FS
  21. help
  22. If you say Y here, you will be able to set limits for disk usage on
  23. a per user and/or a per group basis under XFS. XFS considers quota
  24. information as filesystem metadata and uses journaling to provide a
  25. higher level guarantee of consistency. The on-disk data format for
  26. quota is also compatible with the IRIX version of XFS, allowing a
  27. filesystem to be migrated between Linux and IRIX without any need
  28. for conversion.
  29. If unsure, say N. More comprehensive documentation can be found in
  30. README.quota in the xfsprogs package. XFS quota can be used either
  31. with or without the generic quota support enabled (CONFIG_QUOTA) -
  32. they are completely independent subsystems.
  33. config XFS_SECURITY
  34. bool "XFS Security Label support"
  35. depends on XFS_FS
  36. help
  37. Security labels support alternative access control models
  38. implemented by security modules like SELinux. This option
  39. enables an extended attribute namespace for inode security
  40. labels in the XFS filesystem.
  41. If you are not using a security module that requires using
  42. extended attributes for inode security labels, say N.
  43. config XFS_POSIX_ACL
  44. bool "XFS POSIX ACL support"
  45. depends on XFS_FS
  46. help
  47. POSIX Access Control Lists (ACLs) support permissions for users and
  48. groups beyond the owner/group/world scheme.
  49. To learn more about Access Control Lists, visit the POSIX ACLs for
  50. Linux website <http://acl.bestbits.at/>.
  51. If you don't know what Access Control Lists are, say N.
  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. See the xfs man page in section 5 for additional information.
  66. If unsure, say N.