3006 VERIFY[S,U,P] and ASSERT[S,U,P] frequently check if first argument is zero

@@ -706,11 +706,11 @@
         ASSERT(dmu_tx_is_syncing(tx));
 
         obj = dsl_dataset_create_sync(dd, oa->lastname,
             oa->clone_origin, oa->flags, oa->cr, tx);
 
-        VERIFY3U(0, ==, dsl_dataset_hold_obj(dd->dd_pool, obj, FTAG, &ds));
+        VERIFY0(dsl_dataset_hold_obj(dd->dd_pool, obj, FTAG, &ds));
         bp = dsl_dataset_get_blkptr(ds);
         if (BP_IS_HOLE(bp)) {
                 objset_t *os =
                     dmu_objset_create_impl(spa, ds, bp, oa->type, tx);
 

@@ -1171,11 +1171,11 @@
          * Create the root block IO
          */
         SET_BOOKMARK(&zb, os->os_dsl_dataset ?
             os->os_dsl_dataset->ds_object : DMU_META_OBJSET,
             ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID);
-        VERIFY3U(0, ==, arc_release_bp(os->os_phys_buf, &os->os_phys_buf,
+        VERIFY0(arc_release_bp(os->os_phys_buf, &os->os_phys_buf,
             os->os_rootbp, os->os_spa, &zb));
 
         dmu_write_policy(os, NULL, 0, 0, &zp);
 
         zio = arc_write(pio, os->os_spa, tx->tx_txg,

@@ -1267,13 +1267,13 @@
 {
         if ((flags & DNODE_FLAG_USERUSED_ACCOUNTED)) {
                 int64_t delta = DNODE_SIZE + used;
                 if (subtract)
                         delta = -delta;
-                VERIFY3U(0, ==, zap_increment_int(os, DMU_USERUSED_OBJECT,
+                VERIFY0(zap_increment_int(os, DMU_USERUSED_OBJECT,
                     user, delta, tx));
-                VERIFY3U(0, ==, zap_increment_int(os, DMU_GROUPUSED_OBJECT,
+                VERIFY0(zap_increment_int(os, DMU_GROUPUSED_OBJECT,
                     group, delta, tx));
         }
 }
 
 void