a few minor cleanups.
 -Erik
diff --git a/freeramdisk.c b/freeramdisk.c
index fdac5ea..a6fa243 100644
--- a/freeramdisk.c
+++ b/freeramdisk.c
@@ -23,7 +23,6 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <linux/fs.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
@@ -32,6 +31,9 @@
 #include "internal.h"
 
 
+/* From linux/fs.h */
+#define BLKFLSBUF  _IO(0x12,97)	/* flush buffer cache */
+
 
 static const char freeramdisk_usage[] =
 	"freeramdisk DEVICE\n"