[PATCH] pktcdvd: cleanup

- update documentation

- use clear_bdi_congested/set_bdi_congested functions directly instead of
  old wrappers

- removed DECLARE_BUF_AS_STRING macro

Signed-off-by: Thomas Maier <balagi@justmail.de>
Cc: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/Documentation/cdrom/packet-writing.txt b/Documentation/cdrom/packet-writing.txt
index 7715d22..cf1f812 100644
--- a/Documentation/cdrom/packet-writing.txt
+++ b/Documentation/cdrom/packet-writing.txt
@@ -93,7 +93,7 @@
 Using the pktcdvd sysfs interface
 ---------------------------------
 
-Since Linux 2.6.19, the pktcdvd module has a sysfs interface
+Since Linux 2.6.20, the pktcdvd module has a sysfs interface
 and can be controlled by it. For example the "pktcdvd" tool uses
 this interface. (see http://people.freenet.de/BalaGi#pktcdvd )