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/* Public domain. */
#ifndef _LINUX_REFCOUNT_H
#define _LINUX_REFCOUNT_H
#include <sys/types.h>
#include <linux/atomic.h>
typedef atomic_t refcount_t;
static inline bool
refcount_dec_and_test(uint32_t *p)
{
return atomic_dec_and_test(p);
}
static inline bool
refcount_inc_not_zero(uint32_t *p)
{
return atomic_inc_not_zero(p);
}
static inline void
refcount_set(uint32_t *p, int v)
{
atomic_set(p, v);
}
static inline bool
refcount_dec_and_lock_irqsave(volatile int *v, struct mutex *lock,
unsigned long *flags)
{
if (atomic_add_unless(v, -1, 1))
return false;
mtx_enter(lock);
if (atomic_dec_return(v) == 0)
return true;
mtx_leave(lock);
return false;
}
#endif
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