[PATCH] IPoIB: document conversion to debugfs

Update IPoIB documentation now that multicast debugging files have moved from
ipoibdebugfs to debugfs.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Documentation/infiniband/ipoib.txt

@@ -32,14 +32,13 @@ Debugging Information
   mcast_debug_level to 1.  These parameters can be controlled at
   runtime through files in /sys/module/ib_ipoib/.
 
-  CONFIG_INFINIBAND_IPOIB_DEBUG also enables the "ipoib_debugfs"
+  CONFIG_INFINIBAND_IPOIB_DEBUG also enables files in the debugfs
   virtual filesystem.  By mounting this filesystem, for example with
 
-    mkdir -p /ipoib_debugfs
-    mount -t ipoib_debugfs none /ipoib_debufs
+    mount -t debugfs none /sys/kernel/debug
 
   it is possible to get statistics about multicast groups from the
-  files /ipoib_debugfs/ib0_mcg and so on.
+  files /sys/kernel/debug/ipoib/ib0_mcg and so on.
 
   The performance impact of this option is negligible, so it
   is safe to enable this option with debug_level set to 0 for normal