BUGFIX:

1. gettimeofday bad param list
2. No buffering at file.

blockdev/filedev/ext4_filedev.c

@@ -73,6 +73,9 @@ static int filedev_open(struct ext4_blockdev *bdev)
 	if(!dev_file)
 		return EIO;
 
+	/*No buffering at file.*/
+	setbuf(dev_file, 0);
+
 	if(fseek(dev_file, 0, SEEK_END))
 		return EFAULT;
 

demos/generic/main.c

@@ -208,7 +208,7 @@ static void block_stats(void)
 static clock_t get_ms(void)
 {
     struct timeval t;
-    gettimeofday(&t);
+    gettimeofday(&t, NULL);
     return (t.tv_sec * 1000) + (t.tv_usec / 1000);
 }