[PATCH] ufs: easy debug

Currently to turn on debug mode "user" has to edit ~10 files, to turn off he
has to do it again.

This patch introduce such changes:
1)turn on(off) debug messages via ".config"
2)remove unnecessary duplication of code
3)make "UFSD" macros more similar to function
4)fix some compiler warnings

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/linux/ufs_fs.h

@@ -220,6 +220,19 @@ typedef __u16 __bitwise __fs16;
  */
 #define UFS_MINFREE         5
 #define UFS_DEFAULTOPT      UFS_OPTTIME
+
+/*
+ * Debug code
+ */
+#ifdef CONFIG_UFS_DEBUG
+#	define UFSD(f, a...)	{					\
+		printk ("UFSD (%s, %d): %s:",				\
+			__FILE__, __LINE__, __FUNCTION__);		\
+		printk (f, ## a);					\
+	}
+#else
+#	define UFSD(f, a...)	/**/
+#endif
             
 /*
  * Turn file system block numbers into disk block addresses.