#ifdef __KERNEL__
#include <linux/wait.h>
-#include <linux/mutex.h>
/* values for flags field */
#define NBD_READ_ONLY 0x0001
struct request *active_req;
wait_queue_head_t active_wq;
- struct mutex tx_lock;
+ struct semaphore tx_lock;
struct gendisk *disk;
int blksize;
u64 bytesize;