https://github.com/torvalds/linux
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Tip revision: bf16200689118d19de1b8d2a3c314fc21f5dc7bb authored by Linus Torvalds on 11 April 2016, 00:58:30 UTC
Linux 4.6-rc3
Tip revision: bf16200
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 int lock;
} arch_spinlock_t;

#define __ARCH_SPIN_LOCK_UNLOCKED	{ 0 }

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

#define __ARCH_RW_LOCK_UNLOCKED		{ 0, 0 }

#endif
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