1 files changed, 11 insertions, 0 deletions

diff --git a/fs/cifs/README b/fs/cifs/README
index 0f20edc935b5..83e054576258 100644
--- a/fs/cifs/README
+++ b/fs/cifs/README
@@ -376,6 +376,17 @@ A partial list of the supported mount options follows:
                 attributes) to the server (default) e.g. via setfattr 
                 and getfattr utilities. 
   nouser_xattr  Do not allow getfattr/setfattr to get/set xattrs 
+  mapchars      Translate the seven reserved characters 
+                        *?<>|:\ 
+                to the remap range (above 0xF000), which also
+                allows the CIFS client to recognize files created with
+                such characters by Windows's POSIX emulation. This can
+                also be useful when mounting to most versions of Samba
+                (which also forbids creating and opening files
+                whose names contain any of these seven characters).
+                This has no effect if the server does not support
+                Unicode on the wire.
+ nomapchars     Do not translate any of these seven characters (default).
                 
 The mount.cifs mount helper also accepts a few mount options before -o
 including: