arch/ia64/include/asm/spinlock_types.h

#ifndef _ASM_IA64_SPINLOCK_TYPES_H
#define _ASM_IA64_SPINLOCK_TYPES_H

#ifndef __LINUX_SPINLOCK_TYPES_H
# error "please don't include this file directly"
#endif

typedef struct {
	volatile unsigned long lock;
} raw_spinlock_t;

#define __RAW_SPIN_LOCK_UNLOCKED	{ 0 }

typedef struct {
	volatile unsigned int read_counter	: 31;
	volatile unsigned int write_lock	:  1;
} raw_rwlock_t;

#define __RAW_RW_LOCK_UNLOCKED		{ 0, 0 }

#endif