#include <linux/relay.h>
#include <linux/compat.h>
#include <uapi/linux/blktrace_api.h>
+#include <linux/list.h>
#if defined(CONFIG_BLK_DEV_IO_TRACE)
struct dentry *dir;
struct dentry *dropped_file;
struct dentry *msg_file;
+ struct list_head running_list;
atomic_t dropped;
};