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v0.5.2
https://github.com/torvalds/linux
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Tip revision: 577c9c456f0e1371cbade38eaf91ae8e8a308555 authored by Linus Torvalds on 07 April 2009, 21:25:01 UTC
Linux 2.6.30-rc1
Tip revision: 577c9c4
spinlock_types.h
#ifndef _ASM_SPINLOCK_TYPES_H
#define _ASM_SPINLOCK_TYPES_H

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

typedef struct {
	/*
	 * bits  0..13: serving_now
	 * bits 14    : junk data
	 * bits 15..28: ticket
	 */
	unsigned int lock;
} raw_spinlock_t;

#define __RAW_SPIN_LOCK_UNLOCKED	{ 0 }

typedef struct {
	volatile unsigned int lock;
} raw_rwlock_t;

#define __RAW_RW_LOCK_UNLOCKED		{ 0 }

#endif
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