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LU-6808 ptlrpc: properly set "rq_xid" for 4MB IO
[fs/lustre-release.git] / lustre / ldlm / ldlm_lib.c
index 50ed4c3..95e566d 100644 (file)
@@ -167,14 +167,17 @@ int client_import_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
                         ptlrpc_connection_put(imp->imp_connection);
                         imp->imp_connection = NULL;
 
-                        dlmexp = class_conn2export(&imp->imp_dlm_handle);
-                        if (dlmexp && dlmexp->exp_connection) {
-                                LASSERT(dlmexp->exp_connection ==
-                                        imp_conn->oic_conn);
-                                ptlrpc_connection_put(dlmexp->exp_connection);
-                                dlmexp->exp_connection = NULL;
-                        }
-                }
+                       dlmexp = class_conn2export(&imp->imp_dlm_handle);
+                       if (dlmexp && dlmexp->exp_connection) {
+                               LASSERT(dlmexp->exp_connection ==
+                                       imp_conn->oic_conn);
+                               ptlrpc_connection_put(dlmexp->exp_connection);
+                               dlmexp->exp_connection = NULL;
+                       }
+
+                       if (dlmexp != NULL)
+                               class_export_put(dlmexp);
+               }
 
                list_del(&imp_conn->oic_item);
                 ptlrpc_connection_put(imp_conn->oic_conn);
@@ -397,24 +400,21 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
 #endif
        atomic_set(&cli->cl_resends, OSC_DEFAULT_RESENDS);
 
-       /* This value may be reduced at connect time in
-        * ptlrpc_connect_interpret() . We initialize it to only
-        * 1MB until we know what the performance looks like.
-        * In the future this should likely be increased. LU-1431 */
-       cli->cl_max_pages_per_rpc = min_t(int, PTLRPC_MAX_BRW_PAGES,
-                                         LNET_MTU >> PAGE_CACHE_SHIFT);
+       /* Set it to possible maximum size. It may be reduced by ocd_brw_size
+        * from OFD after connecting. */
+       cli->cl_max_pages_per_rpc = PTLRPC_MAX_BRW_PAGES;
 
-       /* set cl_chunkbits default value to PAGE_CACHE_SHIFT,
+       /* set cl_chunkbits default value to PAGE_SHIFT,
         * it will be updated at OSC connection time. */
-       cli->cl_chunkbits = PAGE_CACHE_SHIFT;
+       cli->cl_chunkbits = PAGE_SHIFT;
 
        if (!strcmp(name, LUSTRE_MDC_NAME)) {
                cli->cl_max_rpcs_in_flight = OBD_MAX_RIF_DEFAULT;
-       } else if (totalram_pages >> (20 - PAGE_CACHE_SHIFT) <= 128 /* MB */) {
+       } else if (totalram_pages >> (20 - PAGE_SHIFT) <= 128 /* MB */) {
                cli->cl_max_rpcs_in_flight = 2;
-       } else if (totalram_pages >> (20 - PAGE_CACHE_SHIFT) <= 256 /* MB */) {
+       } else if (totalram_pages >> (20 - PAGE_SHIFT) <= 256 /* MB */) {
                cli->cl_max_rpcs_in_flight = 3;
-       } else if (totalram_pages >> (20 - PAGE_CACHE_SHIFT) <= 512 /* MB */) {
+       } else if (totalram_pages >> (20 - PAGE_SHIFT) <= 512 /* MB */) {
                cli->cl_max_rpcs_in_flight = 4;
        } else {
                if (osc_on_mdt(obddev->obd_name))
@@ -540,63 +540,66 @@ int client_connect_import(const struct lu_env *env,
        bool                    is_mdc = false;
        ENTRY;
 
-        *exp = NULL;
+       *exp = NULL;
        down_write(&cli->cl_sem);
        if (cli->cl_conn_count > 0)
                 GOTO(out_sem, rc = -EALREADY);
 
-        rc = class_connect(&conn, obd, cluuid);
-        if (rc)
-                GOTO(out_sem, rc);
+       rc = class_connect(&conn, obd, cluuid);
+       if (rc)
+               GOTO(out_sem, rc);
 
-        cli->cl_conn_count++;
-        *exp = class_conn2export(&conn);
+       cli->cl_conn_count++;
+       *exp = class_conn2export(&conn);
 
-        LASSERT(obd->obd_namespace);
+       LASSERT(obd->obd_namespace);
 
-        imp->imp_dlm_handle = conn;
-        rc = ptlrpc_init_import(imp);
-        if (rc != 0)
-                GOTO(out_ldlm, rc);
+       imp->imp_dlm_handle = conn;
+       rc = ptlrpc_init_import(imp);
+       if (rc != 0)
+               GOTO(out_ldlm, rc);
 
-        ocd = &imp->imp_connect_data;
-        if (data) {
-                *ocd = *data;
+       ocd = &imp->imp_connect_data;
+       if (data) {
+               *ocd = *data;
                is_mdc = strncmp(imp->imp_obd->obd_type->typ_name,
                                 LUSTRE_MDC_NAME, 3) == 0;
                if (is_mdc)
                        data->ocd_connect_flags |= OBD_CONNECT_MULTIMODRPCS;
-                imp->imp_connect_flags_orig = data->ocd_connect_flags;
-        }
+               imp->imp_connect_flags_orig = data->ocd_connect_flags;
+               imp->imp_connect_flags2_orig = data->ocd_connect_flags2;
+       }
 
-        rc = ptlrpc_connect_import(imp);
-        if (rc != 0) {
-                LASSERT (imp->imp_state == LUSTRE_IMP_DISCON);
-                GOTO(out_ldlm, rc);
-        }
+       rc = ptlrpc_connect_import(imp);
+       if (rc != 0) {
+               if (data && is_mdc)
+                       data->ocd_connect_flags &= ~OBD_CONNECT_MULTIMODRPCS;
+               LASSERT(imp->imp_state == LUSTRE_IMP_DISCON);
+               GOTO(out_ldlm, rc);
+       }
        LASSERT(*exp != NULL && (*exp)->exp_connection);
 
-        if (data) {
-                LASSERTF((ocd->ocd_connect_flags & data->ocd_connect_flags) ==
-                         ocd->ocd_connect_flags, "old "LPX64", new "LPX64"\n",
-                         data->ocd_connect_flags, ocd->ocd_connect_flags);
-                data->ocd_connect_flags = ocd->ocd_connect_flags;
+       if (data) {
+               LASSERTF((ocd->ocd_connect_flags & data->ocd_connect_flags) ==
+                        ocd->ocd_connect_flags, "old %#llx, new %#llx\n",
+                        data->ocd_connect_flags, ocd->ocd_connect_flags);
+               data->ocd_connect_flags = ocd->ocd_connect_flags;
                /* clear the flag as it was not set and is not known
                 * by upper layers */
                if (is_mdc)
                        data->ocd_connect_flags &= ~OBD_CONNECT_MULTIMODRPCS;
-        }
+       }
 
-        ptlrpc_pinger_add_import(imp);
+       ptlrpc_pinger_add_import(imp);
 
-        EXIT;
+       EXIT;
 
-        if (rc) {
+       if (rc) {
 out_ldlm:
-                cli->cl_conn_count--;
-                class_disconnect(*exp);
-                *exp = NULL;
-        }
+               cli->cl_conn_count--;
+               class_disconnect(*exp);
+               *exp = NULL;
+       }
 out_sem:
        up_write(&cli->cl_sem);
 
@@ -613,7 +616,7 @@ int client_disconnect_export(struct obd_export *exp)
         ENTRY;
 
         if (!obd) {
-                CERROR("invalid export for disconnect: exp %p cookie "LPX64"\n",
+               CERROR("invalid export for disconnect: exp %p cookie %#llx\n",
                        exp, exp ? exp->exp_handle.h_cookie : -1);
                 RETURN(-EINVAL);
         }
@@ -734,7 +737,7 @@ static int target_handle_reconnect(struct lustre_handle *conn,
        if (!exp->exp_connection || !lustre_handle_is_used(hdl)) {
                conn->cookie = exp->exp_handle.h_cookie;
                CDEBUG(D_HA, "connect export for UUID '%s' at %p,"
-                      " cookie "LPX64"\n", cluuid->uuid, exp, conn->cookie);
+                      " cookie %#llx\n", cluuid->uuid, exp, conn->cookie);
                RETURN(0);
        }
 
@@ -743,9 +746,9 @@ static int target_handle_reconnect(struct lustre_handle *conn,
        /* Might be a re-connect after a partition. */
        if (memcmp(&conn->cookie, &hdl->cookie, sizeof conn->cookie)) {
                LCONSOLE_WARN("%s: already connected client %s (at %s) "
-                             "with handle "LPX64". Rejecting client "
+                             "with handle %#llx. Rejecting client "
                              "with the same UUID trying to reconnect "
-                             "with handle "LPX64"\n", target->obd_name,
+                             "with handle %#llx\n", target->obd_name,
                              obd_uuid2str(&exp->exp_client_uuid),
                              obd_export_nid2str(exp),
                              hdl->cookie, conn->cookie);
@@ -766,14 +769,36 @@ static int target_handle_reconnect(struct lustre_handle *conn,
        now = cfs_time_current();
        deadline = cfs_timer_deadline(&target->obd_recovery_timer);
        if (cfs_time_before(now, deadline)) {
+               struct target_distribute_txn_data *tdtd =
+                                       class_exp2tgt(exp)->lut_tdtd;
+               int size = 0;
+               int count = 0;
+               char *buf = NULL;
+
                timeout = cfs_duration_sec(cfs_time_sub(deadline, now));
-               LCONSOLE_WARN("%s: Client %s (at %s) reconnecting,"
-                       " waiting for %d clients in recovery for"
-                       " %d:%.02d\n", target->obd_name,
-                       obd_uuid2str(&exp->exp_client_uuid),
-                       obd_export_nid2str(exp),
-                       target->obd_max_recoverable_clients,
-                       timeout / 60, timeout % 60);
+               if (tdtd && tdtd->tdtd_show_update_logs_retrievers)
+                       buf = tdtd->tdtd_show_update_logs_retrievers(
+                               tdtd->tdtd_show_retrievers_cbdata,
+                               &size, &count);
+
+               if (count > 0)
+                       LCONSOLE_WARN("%s: Recovery already passed deadline "
+                                     "%d:%.02d. It is due to DNE recovery "
+                                     "failed/stuck on the %d MDT(s):%s. "
+                                     "Please wait until all MDTs recovered "
+                                     "or abort the recovery by force.\n",
+                                     target->obd_name, timeout / 60,
+                                     timeout % 60, count,
+                                     buf ? buf : "unknown (not enough RAM)");
+               else
+                       LCONSOLE_WARN("%s: Recovery already passed deadline "
+                                     "%d:%.02d. If you do not want to wait "
+                                     "more, please abort the recovery by "
+                                     "force.\n", target->obd_name,
+                                     timeout / 60, timeout % 60);
+
+               if (buf != NULL)
+                       OBD_FREE(buf, size);
        } else {
                timeout = cfs_duration_sec(cfs_time_sub(now, deadline));
                LCONSOLE_WARN("%s: Recovery already passed deadline"
@@ -1120,25 +1145,43 @@ int target_handle_connect(struct ptlrpc_request *req)
                class_export_put(export);
                export = NULL;
                rc = -EALREADY;
-       } else if ((mds_conn || lw_client) && export->exp_connection != NULL) {
+       } else if ((mds_conn || lw_client ||
+                   data->ocd_connect_flags & OBD_CONNECT_MDS_MDS) &&
+                  export->exp_connection != NULL) {
                spin_unlock(&export->exp_lock);
-               if (req->rq_peer.nid != export->exp_connection->c_peer.nid)
+               if (req->rq_peer.nid != export->exp_connection->c_peer.nid) {
                        /* MDS or LWP reconnected after failover. */
                        LCONSOLE_WARN("%s: Received %s connection from "
                            "%s, removing former export from %s\n",
                            target->obd_name, mds_conn ? "MDS" : "LWP",
                            libcfs_nid2str(req->rq_peer.nid),
                            libcfs_nid2str(export->exp_connection->c_peer.nid));
-               else
+               } else {
                        /* New MDS connection from the same NID. */
                        LCONSOLE_WARN("%s: Received new %s connection from "
                                "%s, removing former export from same NID\n",
                                target->obd_name, mds_conn ? "MDS" : "LWP",
                                libcfs_nid2str(req->rq_peer.nid));
-                class_fail_export(export);
-                class_export_put(export);
-                export = NULL;
-                rc = 0;
+               }
+
+               if (req->rq_peer.nid == export->exp_connection->c_peer.nid &&
+                   data->ocd_connect_flags & OBD_CONNECT_MDS_MDS) {
+                       /* Because exports between MDTs will always be
+                        * kept, let's do not fail such export if they
+                        * come from the same NID, otherwise it might
+                        * cause eviction between MDTs, which might
+                        * cause namespace inconsistency */
+                       spin_lock(&export->exp_lock);
+                       export->exp_connecting = 1;
+                       spin_unlock(&export->exp_lock);
+                       conn.cookie = export->exp_handle.h_cookie;
+                       rc = EALREADY;
+               } else {
+                       class_fail_export(export);
+                       class_export_put(export);
+                       export = NULL;
+                       rc = 0;
+               }
         } else if (export->exp_connection != NULL &&
                    req->rq_peer.nid != export->exp_connection->c_peer.nid &&
                    (lustre_msg_get_op_flags(req->rq_reqmsg) &
@@ -1190,7 +1233,7 @@ no_export:
                 GOTO(out, rc);
         }
 
-        CDEBUG(D_HA, "%s: connection from %s@%s %st"LPU64" exp %p cur %ld last %ld\n",
+       CDEBUG(D_HA, "%s: connection from %s@%s %st%llu exp %p cur %ld last %ld\n",
                target->obd_name, cluuid.uuid, libcfs_nid2str(req->rq_peer.nid),
               target->obd_recovering ? "recovering/" : "", data->ocd_transno,
               export, (long)cfs_time_current_sec(),
@@ -1860,7 +1903,7 @@ static int check_for_next_transno(struct lu_target *lut)
        next_transno = obd->obd_next_recovery_transno;
 
        CDEBUG(D_HA, "max: %d, connected: %d, completed: %d, queue_len: %d, "
-              "req_transno: "LPU64", next_transno: "LPU64"\n",
+              "req_transno: %llu, next_transno: %llu\n",
               obd->obd_max_recoverable_clients, connected, completed,
               queue_len, req_transno, next_transno);
 
@@ -1872,29 +1915,25 @@ static int check_for_next_transno(struct lu_target *lut)
                wake_up = 1;
        } else if (tdtd != NULL && req != NULL &&
                   is_req_replayed_by_update(req)) {
-               LASSERTF(req_transno < next_transno, "req_transno "LPU64
-                        "next_transno"LPU64"\n", req_transno, next_transno);
-               CDEBUG(D_HA, "waking for duplicate req ("LPU64")\n",
+               LASSERTF(req_transno < next_transno, "req_transno %llu"
+                        "next_transno%llu\n", req_transno, next_transno);
+               CDEBUG(D_HA, "waking for duplicate req (%llu)\n",
                       req_transno);
                wake_up = 1;
        } else if (req_transno == next_transno ||
                   (update_transno != 0 && update_transno <= next_transno)) {
-               CDEBUG(D_HA, "waking for next ("LPD64")\n", next_transno);
+               CDEBUG(D_HA, "waking for next (%lld)\n", next_transno);
                wake_up = 1;
        } else if (queue_len > 0 &&
                   queue_len == atomic_read(&obd->obd_req_replay_clients)) {
-               int d_lvl = D_HA;
                /** handle gaps occured due to lost reply or VBR */
                LASSERTF(req_transno >= next_transno,
-                        "req_transno: "LPU64", next_transno: "LPU64"\n",
+                        "req_transno: %llu, next_transno: %llu\n",
                         req_transno, next_transno);
-               if (req_transno > obd->obd_last_committed &&
-                   !obd->obd_version_recov)
-                       d_lvl = D_ERROR;
-               CDEBUG(d_lvl,
+               CDEBUG(D_HA,
                       "%s: waking for gap in transno, VBR is %s (skip: "
-                      LPD64", ql: %d, comp: %d, conn: %d, next: "LPD64
-                      ", next_update "LPD64" last_committed: "LPD64")\n",
+                      "%lld, ql: %d, comp: %d, conn: %d, next: %lld"
+                      ", next_update %lld last_committed: %lld)\n",
                       obd->obd_name, obd->obd_version_recov ? "ON" : "OFF",
                       next_transno, queue_len, completed, connected,
                       req_transno, update_transno, obd->obd_last_committed);
@@ -1905,7 +1944,7 @@ static int check_for_next_transno(struct lu_target *lut)
                wake_up = 1;
        } else if (OBD_FAIL_CHECK(OBD_FAIL_MDS_RECOVERY_ACCEPTS_GAPS)) {
                CDEBUG(D_HA, "accepting transno gaps is explicitly allowed"
-                      " by fail_lock, waking up ("LPD64")\n", next_transno);
+                      " by fail_lock, waking up (%lld)\n", next_transno);
                obd->obd_next_recovery_transno = req_transno;
                wake_up = 1;
        }
@@ -1991,7 +2030,7 @@ repeat:
                         * clients */
                        abort_req_replay_queue(obd);
                        abort_lock_replay_queue(obd);
-                       CDEBUG(D_HA, "%s: there are still update replay ("LPX64
+                       CDEBUG(D_HA, "%s: there are still update replay (%#llx"
                               ")in the queue.\n", obd->obd_name,
                               next_update_transno);
                } else {
@@ -2247,7 +2286,7 @@ static void drop_duplicate_replay_req(struct lu_env *env,
                                      struct obd_device *obd,
                                      struct ptlrpc_request *req)
 {
-       DEBUG_REQ(D_HA, req, "remove t"LPD64" from %s because of duplicate"
+       DEBUG_REQ(D_HA, req, "remove t%lld from %s because of duplicate"
                  " update records are found.\n",
                  lustre_msg_get_transno(req->rq_reqmsg),
                  libcfs_nid2str(req->rq_peer.nid));
@@ -2281,7 +2320,7 @@ static void replay_request_or_update(struct lu_env *env,
        __u64                   transno;
        ENTRY;
 
-       CDEBUG(D_HA, "Waiting for transno "LPD64"\n",
+       CDEBUG(D_HA, "Waiting for transno %lld\n",
               obd->obd_next_recovery_transno);
 
        /* Replay all of request and update by transno */
@@ -2336,7 +2375,7 @@ static void replay_request_or_update(struct lu_env *env,
                        }
 
                        LASSERT(trd->trd_processing_task == current_pid());
-                       DEBUG_REQ(D_HA, req, "processing t"LPD64" from %s",
+                       DEBUG_REQ(D_HA, req, "processing t%lld from %s",
                                  lustre_msg_get_transno(req->rq_reqmsg),
                                  libcfs_nid2str(req->rq_peer.nid));
 
@@ -2366,7 +2405,7 @@ static void replay_request_or_update(struct lu_env *env,
                        extend_recovery_timer(obd, obd_timeout, true);
 
                        if (rc == 0 && dtrq->dtrq_xid != 0) {
-                               CDEBUG(D_HA, "Move x"LPU64" t"LPU64
+                               CDEBUG(D_HA, "Move x%llu t%llu"
                                       " to finish list\n", dtrq->dtrq_xid,
                                       dtrq->dtrq_master_transno);
 
@@ -2455,7 +2494,7 @@ static int target_recovery_thread(void *arg)
 
        /* next stage: replay requests or update */
        delta = jiffies;
-       CDEBUG(D_INFO, "1: request replay stage - %d clients from t"LPU64"\n",
+       CDEBUG(D_INFO, "1: request replay stage - %d clients from t%llu\n",
               atomic_read(&obd->obd_req_replay_clients),
               obd->obd_next_recovery_transno);
        replay_request_or_update(env, lut, trd, thread);
@@ -2601,7 +2640,7 @@ void target_recovery_init(struct lu_target *lut, svc_handler_t handler)
         }
 
        CDEBUG(D_HA, "RECOVERY: service %s, %d recoverable clients, "
-              "last_transno "LPU64"\n", obd->obd_name,
+              "last_transno %llu\n", obd->obd_name,
               obd->obd_max_recoverable_clients, obd->obd_last_committed);
         LASSERT(obd->obd_stopping == 0);
         obd->obd_next_recovery_transno = obd->obd_last_committed + 1;
@@ -2671,15 +2710,46 @@ int target_queue_recovery_request(struct ptlrpc_request *req,
                wake_up(&obd->obd_next_transno_waitq);
                spin_lock(&obd->obd_recovery_task_lock);
                if (obd->obd_recovering) {
+                       struct ptlrpc_request *tmp;
+                       struct ptlrpc_request *duplicate = NULL;
+
+                       if (likely(!req->rq_export->exp_replay_done)) {
+                               req->rq_export->exp_replay_done = 1;
+                               list_add_tail(&req->rq_list,
+                                             &obd->obd_final_req_queue);
+                               spin_unlock(&obd->obd_recovery_task_lock);
+                               RETURN(0);
+                       }
+
+                       /* XXX O(n), but only happens if final ping is
+                        * timed out, probably reorganize the list as
+                        * a hash list later */
+                       list_for_each_entry_safe(reqiter, tmp,
+                                                &obd->obd_final_req_queue,
+                                                rq_list) {
+                               if (reqiter->rq_export == req->rq_export) {
+                                       list_del_init(&reqiter->rq_list);
+                                       duplicate = reqiter;
+                                       break;
+                               }
+                       }
+
                        list_add_tail(&req->rq_list,
-                                         &obd->obd_final_req_queue);
+                                     &obd->obd_final_req_queue);
+                       req->rq_export->exp_replay_done = 1;
+                       spin_unlock(&obd->obd_recovery_task_lock);
+
+                       if (duplicate != NULL) {
+                               DEBUG_REQ(D_HA, duplicate,
+                                         "put prev final req\n");
+                               target_request_copy_put(duplicate);
+                       }
+                       RETURN(0);
                } else {
                        spin_unlock(&obd->obd_recovery_task_lock);
                        target_request_copy_put(req);
                        RETURN(obd->obd_stopping ? -ENOTCONN : 1);
                }
-               spin_unlock(&obd->obd_recovery_task_lock);
-               RETURN(0);
        }
        if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REQ_REPLAY_DONE) {
                /* client declares he's ready to replay locks */
@@ -2720,8 +2790,8 @@ int target_queue_recovery_request(struct ptlrpc_request *req,
          * Also, a resent, replayed request that has already been
          * handled will pass through here and be processed immediately.
          */
-        CDEBUG(D_HA, "Next recovery transno: "LPU64
-               ", current: "LPU64", replaying\n",
+       CDEBUG(D_HA, "Next recovery transno: %llu"
+              ", current: %llu, replaying\n",
                obd->obd_next_recovery_transno, transno);
 
        /* If the request has been replayed by update replay, then sends this
@@ -2801,7 +2871,7 @@ void target_committed_to_req(struct ptlrpc_request *req)
                           "%d)", exp->exp_obd->obd_no_transno,
                           req->rq_repmsg == NULL);
 
-        CDEBUG(D_INFO, "last_committed "LPU64", transno "LPU64", xid "LPU64"\n",
+       CDEBUG(D_INFO, "last_committed %llu, transno %llu, xid %llu\n",
                exp->exp_last_committed, req->rq_transno, req->rq_xid);
 }
 
@@ -2907,7 +2977,7 @@ void target_send_reply(struct ptlrpc_request *req, int rc, int fail_id)
         rs->rs_opc       = lustre_msg_get_opc(req->rq_reqmsg);
 
        spin_lock(&exp->exp_uncommitted_replies_lock);
-       CDEBUG(D_NET, "rs transno = "LPU64", last committed = "LPU64"\n",
+       CDEBUG(D_NET, "rs transno = %llu, last committed = %llu\n",
               rs->rs_transno, exp->exp_last_committed);
        if (rs->rs_transno > exp->exp_last_committed) {
                /* not committed already */
@@ -3104,8 +3174,7 @@ int target_bulk_io(struct obd_export *exp, struct ptlrpc_bulk_desc *desc,
                if (req->rq_bulk_read)
                        rc = sptlrpc_svc_wrap_bulk(req, desc);
 
-               if ((exp->exp_connect_data.ocd_connect_flags &
-                    OBD_CONNECT_BULK_MBITS) != 0)
+               if (OCD_HAS_FLAG(&exp->exp_connect_data, BULK_MBITS))
                        req->rq_mbits = lustre_msg_get_mbits(req->rq_reqmsg);
                else /* old version, bulk matchbits is rq_xid */
                        req->rq_mbits = req->rq_xid;