[PATCH] kcopyd commentary

We're also working on some general documentation which will go in
Documentation/device-mapper and will include more detailed information
about the core driver and the other sub-modules.  We'll try to submit those
patches in the near future.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/md/kcopyd.c

@@ -2,6 +2,10 @@
  * Copyright (C) 2002 Sistina Software (UK) Limited.
  *
  * This file is released under the GPL.
+ *
+ * Kcopyd provides a simple interface for copying an area of one
+ * block-device to one or more other block-devices, with an asynchronous
+ * completion notification.
  */
 
 #include <asm/atomic.h>

drivers/md/kcopyd.h

@@ -2,6 +2,10 @@
  * Copyright (C) 2001 Sistina Software
  *
  * This file is released under the GPL.
+ *
+ * Kcopyd provides a simple interface for copying an area of one
+ * block-device to one or more other block-devices, with an asynchronous
+ * completion notification.
  */
 
 #ifndef DM_KCOPYD_H