-#else /* !CONFIG_SMP */
-
-#define atomic_read(v) ((v)->counter)
-
-static inline void atomic_add(int i, atomic_t *v)
-{
- unsigned long flags;
-
- local_irq_save_hw(flags);
- v->counter += i;
- local_irq_restore_hw(flags);
-}
-
-static inline void atomic_sub(int i, atomic_t *v)
-{
- unsigned long flags;
-
- local_irq_save_hw(flags);
- v->counter -= i;
- local_irq_restore_hw(flags);
-
-}
-
-static inline int atomic_add_return(int i, atomic_t *v)
-{
- int __temp = 0;
- unsigned long flags;
-
- local_irq_save_hw(flags);
- v->counter += i;
- __temp = v->counter;
- local_irq_restore_hw(flags);
-
-
- return __temp;
-}
-
-static inline int atomic_sub_return(int i, atomic_t *v)
-{
- int __temp = 0;
- unsigned long flags;
-
- local_irq_save_hw(flags);
- v->counter -= i;
- __temp = v->counter;
- local_irq_restore_hw(flags);
-
- return __temp;
-}
-
-static inline void atomic_inc(volatile atomic_t *v)
-{
- unsigned long flags;
-
- local_irq_save_hw(flags);
- v->counter++;
- local_irq_restore_hw(flags);
-}
-
-static inline void atomic_dec(volatile atomic_t *v)
-{
- unsigned long flags;
-
- local_irq_save_hw(flags);
- v->counter--;
- local_irq_restore_hw(flags);
-}
-
-static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
-{
- unsigned long flags;
-
- local_irq_save_hw(flags);
- v->counter &= ~mask;
- local_irq_restore_hw(flags);
-}
-
-static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
-{
- unsigned long flags;
-
- local_irq_save_hw(flags);
- v->counter |= mask;
- local_irq_restore_hw(flags);
-}
-
-/* Atomic operations are already serializing */
-#define smp_mb__before_atomic_dec() barrier()
-#define smp_mb__after_atomic_dec() barrier()
-#define smp_mb__before_atomic_inc() barrier()
-#define smp_mb__after_atomic_inc() barrier()
-
-#endif /* !CONFIG_SMP */
-