BUG_ON conversion for fs/xfs/

This patch converts two if () BUG(); construct to BUG_ON();
which occupies less space, uses unlikely and is safer when
BUG() is disabled.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>

fs/xfs/support/debug.c

@@ -53,8 +53,7 @@ cmn_err(register int level, char *fmt, ...)
 	va_end(ap);
 	spin_unlock_irqrestore(&xfs_err_lock,flags);
 
-	if (level == CE_PANIC)
-		BUG();
+	BUG_ON(level == CE_PANIC);
 }
 
 void
@@ -72,8 +71,7 @@ icmn_err(register int level, char *fmt, va_list ap)
 		strcat(message, "\n");
 	spin_unlock_irqrestore(&xfs_err_lock,flags);
 	printk("%s%s", err_level[level], message);
-	if (level == CE_PANIC)
-		BUG();
+	BUG_ON(level == CE_PANIC);
 }
 
 void