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

*** 342,352 ****
                  return (error);
  
          /* hold the mutex to prevent race with a lockfs request */
          vfs_lock_wait(vp->v_vfsp);
          mutex_enter(&ulp->ul_lock);
!         atomic_add_long(&ufs_quiesce_pend, 1);
  
          if (ULOCKFS_IS_HLOCK(ulp)) {
                  error = EIO;
                  goto out;
          }
--- 342,352 ----
                  return (error);
  
          /* hold the mutex to prevent race with a lockfs request */
          vfs_lock_wait(vp->v_vfsp);
          mutex_enter(&ulp->ul_lock);
!         atomic_inc_ulong(&ufs_quiesce_pend);
  
          if (ULOCKFS_IS_HLOCK(ulp)) {
                  error = EIO;
                  goto out;
          }
*** 386,396 ****
                  mutex_exit(&ufsvfsp->vfs_lock);
  out:
          /*
           * we need this broadcast because of the ufs_quiesce call above
           */
!         atomic_add_long(&ufs_quiesce_pend, -1);
          cv_broadcast(&ulp->ul_cv);
          mutex_exit(&ulp->ul_lock);
          vfs_unlock(vp->v_vfsp);
          return (error);
  }
--- 386,396 ----
                  mutex_exit(&ufsvfsp->vfs_lock);
  out:
          /*
           * we need this broadcast because of the ufs_quiesce call above
           */
!         atomic_dec_ulong(&ufs_quiesce_pend);
          cv_broadcast(&ulp->ul_cv);
          mutex_exit(&ulp->ul_lock);
          vfs_unlock(vp->v_vfsp);
          return (error);
  }
*** 423,433 ****
          vfs_lock_wait(vp->v_vfsp);
          ufs_thread_suspend(&ufsvfsp->vfs_delete);
  
          /* hold the mutex to prevent race with a lockfs request */
          mutex_enter(&ulp->ul_lock);
!         atomic_add_long(&ufs_quiesce_pend, 1);
  
          if (ULOCKFS_IS_HLOCK(ulp)) {
                  error = EIO;
                  goto out;
          }
--- 423,433 ----
          vfs_lock_wait(vp->v_vfsp);
          ufs_thread_suspend(&ufsvfsp->vfs_delete);
  
          /* hold the mutex to prevent race with a lockfs request */
          mutex_enter(&ulp->ul_lock);
!         atomic_inc_ulong(&ufs_quiesce_pend);
  
          if (ULOCKFS_IS_HLOCK(ulp)) {
                  error = EIO;
                  goto out;
          }
*** 484,494 ****
  
          /* synchronously flush dirty data and metadata */
          error = ufs_flush(vp->v_vfsp);
  
  out:
!         atomic_add_long(&ufs_quiesce_pend, -1);
          cv_broadcast(&ulp->ul_cv);
          mutex_exit(&ulp->ul_lock);
          vfs_unlock(vp->v_vfsp);
  
          /*
--- 484,494 ----
  
          /* synchronously flush dirty data and metadata */
          error = ufs_flush(vp->v_vfsp);
  
  out:
!         atomic_dec_ulong(&ufs_quiesce_pend);
          cv_broadcast(&ulp->ul_cv);
          mutex_exit(&ulp->ul_lock);
          vfs_unlock(vp->v_vfsp);
  
          /*