root/include/linux/spinlock_types_up.h

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INCLUDED FROM

#ifndef __LINUX_SPINLOCK_TYPES_UP_H
#define __LINUX_SPINLOCK_TYPES_UP_H

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

/*
 * include/linux/spinlock_types_up.h - spinlock type definitions for UP
 *
 * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
 * Released under the General Public License (GPL).
 */

#ifdef CONFIG_DEBUG_SPINLOCK

typedef struct {
        volatile unsigned int slock;
} arch_spinlock_t;

#define __ARCH_SPIN_LOCK_UNLOCKED { 1 }

#else

typedef struct { } arch_spinlock_t;

#define __ARCH_SPIN_LOCK_UNLOCKED { }

#endif

typedef struct {
        /* no debug version on UP */
} arch_rwlock_t;

#define __ARCH_RW_LOCK_UNLOCKED { }

#endif /* __LINUX_SPINLOCK_TYPES_UP_H */
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