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#ifndef __SPINLOCK_H__
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#ifndef __SPINLOCK_H__
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#define __SPINLOCK_H__
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#define __SPINLOCK_H__
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#include <arch/types.h>
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#include <arch/types.h>
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#include <typedefs.h>
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#include <typedefs.h>
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#include <preemption.h>
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#ifdef __SMP__
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#ifdef __SMP__
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struct spinlock {
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struct spinlock {
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    int val;
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    int val;
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};
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};
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struct spinlock {
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struct spinlock {
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};
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};
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#define spinlock_initialize(x)
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#define spinlock_initialize(x)
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#define spinlock_lock(x)
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#define spinlock_lock(x)        preemption_disable()
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#define spinlock_trylock(x) 1
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#define spinlock_trylock(x)         (preemption_disable(), 1)
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#define spinlock_unlock(x)
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#define spinlock_unlock(x)      preemption_enable()
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#endif
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#endif
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#endif
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#endif