https://github.com/torvalds/linux
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Tip revision: 62d0cfcb27cf755cebdc93ca95dabc83608007cd authored by Linus Torvalds on 04 February 2007, 18:44:54 UTC
Linux 2.6.20
Tip revision: 62d0cfc
spinlock_types.h
#ifndef __ASM_SH_SPINLOCK_TYPES_H
#define __ASM_SH_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 __SPIN_LOCK_UNLOCKED		{ 0 }

typedef struct {
	raw_spinlock_t lock;
	atomic_t counter;
} raw_rwlock_t;

#define RW_LOCK_BIAS			0x01000000
#define __RAW_RW_LOCK_UNLOCKED		{ { 0 }, { RW_LOCK_BIAS } }

#endif
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