https://github.com/torvalds/linux
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Tip revision: de46c33745f5e2ad594c72f2cf5f490861b16ce1 authored by Linus Torvalds on 26 April 2007, 03:08:32 UTC
Linux 2.6.21
Tip revision: de46c33
spinlock_types.h
#ifndef __ASM_SPINLOCK_TYPES_H
#define __ASM_SPINLOCK_TYPES_H

typedef struct {
#ifdef CONFIG_PA20
	volatile unsigned int slock;
# define __RAW_SPIN_LOCK_UNLOCKED { 1 }
#else
	volatile unsigned int lock[4];
# define __RAW_SPIN_LOCK_UNLOCKED	{ { 1, 1, 1, 1 } }
#endif
} raw_spinlock_t;

typedef struct {
	raw_spinlock_t lock;
	volatile int counter;
} raw_rwlock_t;

#define __RAW_RW_LOCK_UNLOCKED		{ __RAW_SPIN_LOCK_UNLOCKED, 0 }

#endif
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