spinlock_types.h
#ifndef _ASM_POWERPC_SPINLOCK_TYPES_H
#define _ASM_POWERPC_SPINLOCK_TYPES_H
#ifndef __LINUX_SPINLOCK_TYPES_H
# error "please don't include this file directly"
#endif
typedef struct {
volatile unsigned int slock;
} raw_spinlock_t;
#define __RAW_SPIN_LOCK_UNLOCKED { 0 }
typedef struct {
volatile signed int lock;
} raw_rwlock_t;
#define __RAW_RW_LOCK_UNLOCKED { 0 }
#endif