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

*** 5974,5988 ****
                          if (pp == NULL) {
                                  mutex_exit(&ulp->ul_lock);
                          }
                          return (vmpss ? EIO : EINVAL);
                  }
!                 atomic_add_long(&ulp->ul_vnops_cnt, 1);
                  if (pp == NULL)
                          mutex_exit(&ulp->ul_lock);
                  if (ufs_quiesce_pend) {
!                         if (!atomic_add_long_nv(&ulp->ul_vnops_cnt, -1))
                                  cv_broadcast(&ulp->ul_cv);
                          return (vmpss ? EIO : EINVAL);
                  }
          }
  
--- 5974,5988 ----
                          if (pp == NULL) {
                                  mutex_exit(&ulp->ul_lock);
                          }
                          return (vmpss ? EIO : EINVAL);
                  }
!                 atomic_inc_ulong(&ulp->ul_vnops_cnt);
                  if (pp == NULL)
                          mutex_exit(&ulp->ul_lock);
                  if (ufs_quiesce_pend) {
!                         if (!atomic_dec_ulong_nv(&ulp->ul_vnops_cnt))
                                  cv_broadcast(&ulp->ul_cv);
                          return (vmpss ? EIO : EINVAL);
                  }
          }
  
*** 5997,6007 ****
                   * Segvn will retry via VOP_GETPAGE() if VOP_PAGEIO() fails.
                   */
                  if (!vmpss) {
                          rw_enter(&ip->i_contents, RW_READER);
                  } else if (!rw_tryenter(&ip->i_contents, RW_READER)) {
!                         if (!atomic_add_long_nv(&ulp->ul_vnops_cnt, -1))
                                  cv_broadcast(&ulp->ul_cv);
                          return (EDEADLK);
                  }
          }
  
--- 5997,6007 ----
                   * Segvn will retry via VOP_GETPAGE() if VOP_PAGEIO() fails.
                   */
                  if (!vmpss) {
                          rw_enter(&ip->i_contents, RW_READER);
                  } else if (!rw_tryenter(&ip->i_contents, RW_READER)) {
!                         if (!atomic_dec_ulong_nv(&ulp->ul_vnops_cnt))
                                  cv_broadcast(&ulp->ul_cv);
                          return (EDEADLK);
                  }
          }
  
*** 6010,6020 ****
           * PAGESIZE rounded EOF.
           */
          if (vmpss && btopr(io_off + io_len) > btopr(ip->i_size)) {
                  if (dolock)
                          rw_exit(&ip->i_contents);
!                 if (!atomic_add_long_nv(&ulp->ul_vnops_cnt, -1))
                          cv_broadcast(&ulp->ul_cv);
                  return (EFAULT);
          }
  
          if (pp == NULL) {
--- 6010,6020 ----
           * PAGESIZE rounded EOF.
           */
          if (vmpss && btopr(io_off + io_len) > btopr(ip->i_size)) {
                  if (dolock)
                          rw_exit(&ip->i_contents);
!                 if (!atomic_dec_ulong_nv(&ulp->ul_vnops_cnt))
                          cv_broadcast(&ulp->ul_cv);
                  return (EFAULT);
          }
  
          if (pp == NULL) {
*** 6023,6033 ****
                  } else {
                          err = EINVAL;
                  }
                  if (dolock)
                          rw_exit(&ip->i_contents);
!                 if (!atomic_add_long_nv(&ulp->ul_vnops_cnt, -1))
                          cv_broadcast(&ulp->ul_cv);
                  return (err);
          }
  
          /*
--- 6023,6033 ----
                  } else {
                          err = EINVAL;
                  }
                  if (dolock)
                          rw_exit(&ip->i_contents);
!                 if (!atomic_dec_ulong_nv(&ulp->ul_vnops_cnt))
                          cv_broadcast(&ulp->ul_cv);
                  return (err);
          }
  
          /*
*** 6130,6140 ****
                  mutex_exit(&ip->i_tlock);
          }
  
          if (dolock)
                  rw_exit(&ip->i_contents);
!         if (vmpss && !atomic_add_long_nv(&ulp->ul_vnops_cnt, -1))
                  cv_broadcast(&ulp->ul_cv);
          return (err);
  }
  
  /*
--- 6130,6140 ----
                  mutex_exit(&ip->i_tlock);
          }
  
          if (dolock)
                  rw_exit(&ip->i_contents);
!         if (vmpss && !atomic_dec_ulong_nv(&ulp->ul_vnops_cnt))
                  cv_broadcast(&ulp->ul_cv);
          return (err);
  }
  
  /*