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-rw-r--r--fs/xfs/Kconfig21
1 files changed, 11 insertions, 10 deletions
diff --git a/fs/xfs/Kconfig b/fs/xfs/Kconfig
index bac27d66151d..236f9cf3714f 100644
--- a/fs/xfs/Kconfig
+++ b/fs/xfs/Kconfig
@@ -65,18 +65,19 @@ config XFS_POSIX_ACL
65 If you don't know what Access Control Lists are, say N. 65 If you don't know what Access Control Lists are, say N.
66 66
67config XFS_RT 67config XFS_RT
68 bool "XFS Realtime support (EXPERIMENTAL)" 68 bool "XFS Realtime subvolume support"
69 depends on XFS_FS && EXPERIMENTAL 69 depends on XFS_FS
70 help 70 help
71 If you say Y here you will be able to mount and use XFS filesystems 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 72 which contain a realtime subvolume. The realtime subvolume is a
73 separate area of disk space where only file data is stored. The 73 separate area of disk space where only file data is stored. It was
74 realtime subvolume is designed to provide very deterministic 74 originally designed to provide deterministic data rates suitable
75 data rates suitable for media streaming applications. 75 for media streaming applications, but is also useful as a generic
76 76 mechanism for ensuring data and metadata/log I/Os are completely
77 See the xfs man page in section 5 for a bit more information. 77 separated. Regular file I/Os are isolated to a separate device
78 from all other requests, and this can be done quite transparently
79 to applications via the inherit-realtime directory inode flag.
78 80
79 This feature is unsupported at this time, is not yet fully 81 See the xfs man page in section 5 for additional information.
80 functional, and may cause serious problems.
81 82
82 If unsure, say N. 83 If unsure, say N.