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

@@ -3146,19 +3146,19 @@
         kmem_free(mi, sizeof (*mi));
 }
 void
 mi_hold(mntinfo4_t *mi)
 {
-        atomic_add_32(&mi->mi_count, 1);
+        atomic_inc_32(&mi->mi_count);
         ASSERT(mi->mi_count != 0);
 }
 
 void
 mi_rele(mntinfo4_t *mi)
 {
         ASSERT(mi->mi_count != 0);
-        if (atomic_add_32_nv(&mi->mi_count, -1) == 0) {
+        if (atomic_dec_32_nv(&mi->mi_count) == 0) {
                 nfs_free_mi4(mi);
         }
 }
 
 vnode_t    nfs4_xattr_notsupp_vnode;

@@ -4109,11 +4109,11 @@
 }
 
 void
 fn_hold(nfs4_fname_t *fnp)
 {
-        atomic_add_32(&fnp->fn_refcnt, 1);
+        atomic_inc_32(&fnp->fn_refcnt);
         NFS4_DEBUG(nfs4_fname_debug, (CE_NOTE,
             "fn_hold %p:%s, new refcnt=%d",
             (void *)fnp, fnp->fn_name, fnp->fn_refcnt));
 }
 

@@ -4135,11 +4135,11 @@
 
         mutex_enter(&fnp->fn_lock);
         parent = fnp->fn_parent;
         if (parent != NULL)
                 mutex_enter(&parent->fn_lock);  /* prevent new references */
-        newref = atomic_add_32_nv(&fnp->fn_refcnt, -1);
+        newref = atomic_dec_32_nv(&fnp->fn_refcnt);
         if (newref > 0) {
                 NFS4_DEBUG(nfs4_fname_debug, (CE_NOTE,
                     "fn_rele %p:%s, new refcnt=%d",
                     (void *)fnp, fnp->fn_name, fnp->fn_refcnt));
                 if (parent != NULL)