5045 use atomic_{inc,dec}_* instead of atomic_add_*

*** 58,77 ****
  }
  
  void
  rfs4_dbe_hold(rfs4_dbe_t *entry)
  {
!         atomic_add_32(&entry->dbe_refcnt, 1);
  }
  
  /*
   * rfs4_dbe_rele_nolock only decrements the reference count of the entry.
   */
  void
  rfs4_dbe_rele_nolock(rfs4_dbe_t *entry)
  {
!         atomic_add_32(&entry->dbe_refcnt, -1);
  }
  
  
  uint32_t
  rfs4_dbe_refcnt(rfs4_dbe_t *entry)
--- 58,77 ----
  }
  
  void
  rfs4_dbe_hold(rfs4_dbe_t *entry)
  {
!         atomic_inc_32(&entry->dbe_refcnt);
  }
  
  /*
   * rfs4_dbe_rele_nolock only decrements the reference count of the entry.
   */
  void
  rfs4_dbe_rele_nolock(rfs4_dbe_t *entry)
  {
!         atomic_dec_32(&entry->dbe_refcnt);
  }
  
  
  uint32_t
  rfs4_dbe_refcnt(rfs4_dbe_t *entry)
*** 127,137 ****
  void
  rfs4_dbe_rele(rfs4_dbe_t *entry)
  {
          mutex_enter(entry->dbe_lock);
          ASSERT(entry->dbe_refcnt > 1);
!         atomic_add_32(&entry->dbe_refcnt, -1);
          entry->dbe_time_rele = gethrestime_sec();
          mutex_exit(entry->dbe_lock);
  }
  
  void
--- 127,137 ----
  void
  rfs4_dbe_rele(rfs4_dbe_t *entry)
  {
          mutex_enter(entry->dbe_lock);
          ASSERT(entry->dbe_refcnt > 1);
!         atomic_dec_32(&entry->dbe_refcnt);
          entry->dbe_time_rele = gethrestime_sec();
          mutex_exit(entry->dbe_lock);
  }
  
  void