btrfs: update kconfig help text

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=4204617d142c0887e45fda2562cb5c58097b918e
Commit:     4204617d142c0887e45fda2562cb5c58097b918e
Parent:     475bf36ffba2ad18631865a2429468dc6c7ea919
Author:     David Sterba <dsterba at suse.cz>
AuthorDate: Wed Nov 20 14:32:34 2013 +0100
Committer:  Chris Mason <chris.mason at fusionio.com>
CommitDate: Wed Nov 20 20:49:09 2013 -0500

    btrfs: update kconfig help text
    
    Reflect the current status. Portions of the text taken from the
    wiki pages.
    
    Signed-off-by: David Sterba <dsterba at suse.cz>
    Signed-off-by: Chris Mason <chris.mason at fusionio.com>
---
 fs/btrfs/Kconfig | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/Kconfig b/fs/btrfs/Kconfig
index 398cbd5..f623893 100644
--- a/fs/btrfs/Kconfig
+++ b/fs/btrfs/Kconfig
@@ -9,12 +9,17 @@ config BTRFS_FS
 	select XOR_BLOCKS
 
 	help
-	  Btrfs is a new filesystem with extents, writable snapshotting,
-	  support for multiple devices and many more features.
+	  Btrfs is a general purpose copy-on-write filesystem with extents,
+	  writable snapshotting, support for multiple devices and many more
+	  features focused on fault tolerance, repair and easy administration.
 
-	  Btrfs is highly experimental, and THE DISK FORMAT IS NOT YET
-	  FINALIZED.  You should say N here unless you are interested in
-	  testing Btrfs with non-critical data.
+	  The filesystem disk format is no longer unstable, and it's not
+	  expected to change unless there are strong reasons to do so. If there
+	  is a format change, file systems with a unchanged format will
+	  continue to be mountable and usable by newer kernels.
+
+	  For more information, please see the web pages at
+	  http://btrfs.wiki.kernel.org.
 
 	  To compile this file system support as a module, choose M here. The
 	  module will be called btrfs.