typo fixes

Most of these fixes were already submitted for old kernel versions, and were
approved, but for some reason they never made it into the releases.

Because this is a consolidation of a couple old missed patches, it touches both
Kconfigs and documentation texts.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
diff --git a/Documentation/filesystems/9p.txt b/Documentation/filesystems/9p.txt
index d6fd6c6..b90f537 100644
--- a/Documentation/filesystems/9p.txt
+++ b/Documentation/filesystems/9p.txt
@@ -54,7 +54,7 @@
   aname=name	aname specifies the file tree to access when the server is
   		offering several exported file systems.
 
-  cache=mode	specifies a cacheing policy.  By default, no caches are used.
+  cache=mode	specifies a caching policy.  By default, no caches are used.
 			loose = no attempts are made at consistency,
                                 intended for exclusive, read-only mounts