uml: current.h cleanup

Tidy current-related stuff.  There was a comment in current.h saying
that current_thread was obsolete, so this patch turns all instances of
current_thread into current_thread_info().  There's some simplifying
of the result in arch/um/sys-i386/signal.c.

current.h and thread_info also get style cleanups.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/asm-um/current.h b/include/asm-um/current.h
index 8fd72f6..c2191d9 100644
--- a/include/asm-um/current.h
+++ b/include/asm-um/current.h
@@ -1,32 +1,13 @@
-/* 
- * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
+/*
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
  * Licensed under the GPL
  */
 
 #ifndef __UM_CURRENT_H
 #define __UM_CURRENT_H
 
-#ifndef __ASSEMBLY__
-
-#include "asm/page.h"
 #include "linux/thread_info.h"
 
 #define current (current_thread_info()->task)
 
-/*Backward compatibility - it's used inside arch/um.*/
-#define current_thread current_thread_info()
-
-#endif /* __ASSEMBLY__ */
-
 #endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */