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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 bac27d66151..236f9cf3714 100644
--- a/fs/xfs/Kconfig
+++ b/fs/xfs/Kconfig
@@ -65,18 +65,19 @@ config XFS_POSIX_ACL
If you don't know what Access Control Lists are, say N.
config XFS_RT
- bool "XFS Realtime support (EXPERIMENTAL)"
- depends on XFS_FS && EXPERIMENTAL
+ bool "XFS Realtime subvolume support"
+ depends on XFS_FS
help
If you say Y here you will be able to mount and use XFS filesystems
- which contain a realtime subvolume. The realtime subvolume is a
- separate area of disk space where only file data is stored. The
- realtime subvolume is designed to provide very deterministic
- data rates suitable for media streaming applications.
-
- See the xfs man page in section 5 for a bit more information.
+ which contain a realtime subvolume. The realtime subvolume is a
+ separate area of disk space where only file data is stored. It was
+ originally designed to provide deterministic data rates suitable
+ for media streaming applications, but is also useful as a generic
+ mechanism for ensuring data and metadata/log I/Os are completely
+ separated. Regular file I/Os are isolated to a separate device
+ from all other requests, and this can be done quite transparently
+ to applications via the inherit-realtime directory inode flag.
- This feature is unsupported at this time, is not yet fully
- functional, and may cause serious problems.
+ See the xfs man page in section 5 for additional information.
If unsure, say N.