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#include <preemption.h>
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#include <preemption.h>
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#include <atomic.h>
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#include <atomic.h>
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#include <debug.h>
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#include <debug.h>
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#ifdef CONFIG_SMP
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#ifdef CONFIG_SMP
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struct spinlock {
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typedef struct {
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#ifdef CONFIG_DEBUG_SPINLOCK
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#ifdef CONFIG_DEBUG_SPINLOCK
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    char *name;
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    char *name;
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#endif
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#endif
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    atomic_t val;
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    atomic_t val;
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};
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} spinlock_t;
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/*
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/*
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 * SPINLOCK_DECLARE is to be used for dynamically allocated spinlocks,
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 * SPINLOCK_DECLARE is to be used for dynamically allocated spinlocks,
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 * where the lock gets initialized in run time.
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 * where the lock gets initialized in run time.
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 */
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 */
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    preemption_enable();
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    preemption_enable();
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}
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}
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#else
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#else
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- 
 
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typedef void spinlock_t;
- 
 
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/* On UP systems, spinlocks are effectively left out. */
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/* On UP systems, spinlocks are effectively left out. */
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#define SPINLOCK_DECLARE(name)
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#define SPINLOCK_DECLARE(name)
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#define SPINLOCK_INITIALIZE(name)
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#define SPINLOCK_INITIALIZE(name)
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#define spinlock_initialize(x,name)
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#define spinlock_initialize(x,name)