#define cond_resched() do { } while (0)
#define yield() do { } while (0)
-#define __user
#define __init
#define __exit
#define __devinit
#define __devinitdata
#define __devinitconst
-#define __iomem
#define kthread_create(...) __builtin_return_address(0)
#define kthread_stop(...) do { } while (0)
#define cdev_add(...) 0
#define cdev_del(...) do { } while (0)
-#define MAX_ERRNO 4095
-
#define prandom_u32(...) 0
typedef struct {
/* from include/linux/types.h */
-typedef int atomic_t;
/**
* struct callback_head - callback structure for use with RCU and task_work
* @next: next update requests in a list