Kconfig 3.1 KB

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  1. config XFS_FS
  2. tristate "XFS filesystem support"
  3. help
  4. XFS is a high performance journaling filesystem which originated
  5. on the SGI IRIX platform. It is completely multi-threaded, can
  6. support large files and large filesystems, extended attributes,
  7. variable block sizes, is extent based, and makes extensive use of
  8. Btrees (directories, extents, free space) to aid both performance
  9. and scalability.
  10. Refer to the documentation at <http://oss.sgi.com/projects/xfs/>
  11. for complete details. This implementation is on-disk compatible
  12. with the IRIX version of XFS.
  13. To compile this file system support as a module, choose M here: the
  14. module will be called xfs. Be aware, however, that if the file
  15. system of your root partition is compiled as a module, you'll need
  16. to use an initial ramdisk (initrd) to boot.
  17. config XFS_QUOTA
  18. bool "XFS Quota support"
  19. depends on XFS_FS
  20. help
  21. If you say Y here, you will be able to set limits for disk usage on
  22. a per user and/or a per group basis under XFS. XFS considers quota
  23. information as filesystem metadata and uses journaling to provide a
  24. higher level guarantee of consistency. The on-disk data format for
  25. quota is also compatible with the IRIX version of XFS, allowing a
  26. filesystem to be migrated between Linux and IRIX without any need
  27. for conversion.
  28. If unsure, say N. More comprehensive documentation can be found in
  29. README.quota in the xfsprogs package. XFS quota can be used either
  30. with or without the generic quota support enabled (CONFIG_QUOTA) -
  31. they are completely independent subsystems.
  32. config XFS_SECURITY
  33. bool "XFS Security Label support"
  34. depends on XFS_FS
  35. help
  36. Security labels support alternative access control models
  37. implemented by security modules like SELinux. This option
  38. enables an extended attribute namespace for inode security
  39. labels in the XFS filesystem.
  40. If you are not using a security module that requires using
  41. extended attributes for inode security labels, say N.
  42. config XFS_POSIX_ACL
  43. bool "XFS POSIX ACL support"
  44. depends on XFS_FS
  45. help
  46. POSIX Access Control Lists (ACLs) support permissions for users and
  47. groups beyond the owner/group/world scheme.
  48. To learn more about Access Control Lists, visit the POSIX ACLs for
  49. Linux website <http://acl.bestbits.at/>.
  50. If you don't know what Access Control Lists are, say N.
  51. config XFS_RT
  52. bool "XFS Realtime subvolume support"
  53. depends on XFS_FS
  54. help
  55. If you say Y here you will be able to mount and use XFS filesystems
  56. which contain a realtime subvolume. The realtime subvolume is a
  57. separate area of disk space where only file data is stored. It was
  58. originally designed to provide deterministic data rates suitable
  59. for media streaming applications, but is also useful as a generic
  60. mechanism for ensuring data and metadata/log I/Os are completely
  61. separated. Regular file I/Os are isolated to a separate device
  62. from all other requests, and this can be done quite transparently
  63. to applications via the inherit-realtime directory inode flag.
  64. See the xfs man page in section 5 for additional information.
  65. If unsure, say N.