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LU-8130 ptlrpc: convert conn_hash to rhashtable
[fs/lustre-release.git] / lustre / ldlm / ldlm_lib.c
index feacd50..2b62e25 100644 (file)
@@ -271,13 +271,13 @@ static int osc_on_mdt(char *obdname)
  * 3 - inactive-on-startup
  * 4 - restrictive net
  */
-int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
+int client_obd_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 {
-       struct client_obd *cli = &obddev->u.cli;
+       struct client_obd *cli = &obd->u.cli;
        struct obd_import *imp;
        struct obd_uuid server_uuid;
        int rq_portal, rp_portal, connect_op;
-       const char *name = obddev->obd_type->typ_name;
+       const char *name = obd->obd_type->typ_name;
        enum ldlm_ns_type ns_type = LDLM_NS_TYPE_UNKNOWN;
        char *cli_name = lustre_cfg_buf(lcfg, 0);
        struct ptlrpc_connection fake_conn = { .c_self = 0,
@@ -378,7 +378,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
         * ptlrpc_connect_interpret().
         */
        client_adjust_max_dirty(cli);
-       INIT_LIST_HEAD(&cli->cl_cache_waiters);
+       init_waitqueue_head(&cli->cl_cache_waiters);
        INIT_LIST_HEAD(&cli->cl_loi_ready_list);
        INIT_LIST_HEAD(&cli->cl_loi_hp_ready_list);
        INIT_LIST_HEAD(&cli->cl_loi_write_list);
@@ -451,7 +451,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
        } else if (cfs_totalram_pages() >> (20 - PAGE_SHIFT) <= 512 /* MB */) {
                cli->cl_max_rpcs_in_flight = 4;
        } else {
-               if (osc_on_mdt(obddev->obd_name))
+               if (osc_on_mdt(obd->obd_name))
                        cli->cl_max_rpcs_in_flight = OBD_MAX_RIF_MAX;
                else
                        cli->cl_max_rpcs_in_flight = OBD_MAX_RIF_DEFAULT;
@@ -482,12 +482,12 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
        }
 
        ptlrpc_init_client(rq_portal, rp_portal, name,
-                          &obddev->obd_ldlm_client);
+                          &obd->obd_ldlm_client);
 
-       imp = class_new_import(obddev);
+       imp = class_new_import(obd);
        if (imp == NULL)
                GOTO(err_ldlm, rc = -ENOENT);
-       imp->imp_client = &obddev->obd_ldlm_client;
+       imp->imp_client = &obd->obd_ldlm_client;
        imp->imp_connect_op = connect_op;
        memcpy(cli->cl_target_uuid.uuid, lustre_cfg_buf(lcfg, 1),
               LUSTRE_CFG_BUFLEN(lcfg, 1));
@@ -499,7 +499,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
                if (refnet == LNET_NIDNET(LNET_NID_ANY)) {
                        rc = -EINVAL;
                        CERROR("%s: bad mount option 'network=%s': rc = %d\n",
-                              obddev->obd_name, lustre_cfg_string(lcfg, 4),
+                              obd->obd_name, lustre_cfg_string(lcfg, 4),
                               rc);
                        GOTO(err_import, rc);
                }
@@ -521,7 +521,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
        if (LUSTRE_CFG_BUFLEN(lcfg, 3) > 0) {
                if (!strcmp(lustre_cfg_string(lcfg, 3), "inactive")) {
                        CDEBUG(D_HA, "marking %s %s->%s as inactive\n",
-                              name, obddev->obd_name,
+                              name, obd->obd_name,
                               cli->cl_target_uuid.uuid);
                        spin_lock(&imp->imp_lock);
                        imp->imp_deactive = 1;
@@ -529,13 +529,13 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
                }
        }
 
-       obddev->obd_namespace = ldlm_namespace_new(obddev, obddev->obd_name,
-                                                  LDLM_NAMESPACE_CLIENT,
-                                                  LDLM_NAMESPACE_GREEDY,
-                                                  ns_type);
-       if (obddev->obd_namespace == NULL) {
+       obd->obd_namespace = ldlm_namespace_new(obd, obd->obd_name,
+                                               LDLM_NAMESPACE_CLIENT,
+                                               LDLM_NAMESPACE_GREEDY,
+                                               ns_type);
+       if (obd->obd_namespace == NULL) {
                CERROR("Unable to create client namespace - %s\n",
-                      obddev->obd_name);
+                      obd->obd_name);
                GOTO(err_import, rc = -ENOMEM);
        }
 
@@ -555,17 +555,17 @@ err:
 }
 EXPORT_SYMBOL(client_obd_setup);
 
-int client_obd_cleanup(struct obd_device *obddev)
+int client_obd_cleanup(struct obd_device *obd)
 {
-       struct client_obd *cli = &obddev->u.cli;
+       struct client_obd *cli = &obd->u.cli;
 
        ENTRY;
 
-       ldlm_namespace_free_post(obddev->obd_namespace);
-       obddev->obd_namespace = NULL;
+       ldlm_namespace_free_post(obd->obd_namespace);
+       obd->obd_namespace = NULL;
 
-       obd_cleanup_client_import(obddev);
-       LASSERT(obddev->u.cli.cl_import == NULL);
+       obd_cleanup_client_import(obd);
+       LASSERT(obd->u.cli.cl_import == NULL);
 
        ldlm_put_ref();
 
@@ -787,12 +787,37 @@ int server_disconnect_export(struct obd_export *exp)
 }
 EXPORT_SYMBOL(server_disconnect_export);
 
+static inline int target_check_recovery_timer(struct obd_device *target)
+{
+       ktime_t remaining;
+       s64 timeout;
+
+       if (!target->obd_recovering || target->obd_recovery_start == 0)
+               return 0;
+
+       remaining = hrtimer_expires_remaining(&target->obd_recovery_timer);
+       timeout = ktime_divns(remaining, NSEC_PER_SEC);
+       if (timeout > -30)
+               return 0;
+
+       /* the recovery timer should expire, but it isn't triggered,
+        * it's better to abort the recovery of this target to speed up
+        * the recovery of the whole cluster. */
+       spin_lock(&target->obd_dev_lock);
+       if (target->obd_recovering) {
+               CERROR("%s: Aborting recovery\n", target->obd_name);
+               target->obd_abort_recovery = 1;
+               wake_up(&target->obd_next_transno_waitq);
+       }
+       spin_unlock(&target->obd_dev_lock);
+       return 0;
+}
+
 /*
  * --------------------------------------------------------------------------
  * from old lib/target.c
  * --------------------------------------------------------------------------
  */
-
 static int target_handle_reconnect(struct lustre_handle *conn,
                                   struct obd_export *exp,
                                   struct obd_uuid *cluuid)
@@ -853,6 +878,8 @@ static int target_handle_reconnect(struct lustre_handle *conn,
                int count = 0;
                char *buf = NULL;
 
+               target_check_recovery_timer(target);
+
                tdtd = class_exp2tgt(exp)->lut_tdtd;
                if (tdtd && tdtd->tdtd_show_update_logs_retrievers)
                        buf = tdtd->tdtd_show_update_logs_retrievers(
@@ -1138,8 +1165,8 @@ int target_handle_connect(struct ptlrpc_request *req)
                                OBD_CONNECT_MDS_MDS) != 0;
 
                /*
-                * OBD_CONNECT_MNE_SWAB is defined as OBD_CONNECT_MDS_MDS
-                * for Imperative Recovery connection from MGC to MGS.
+                * OBD_CONNECT_MNE_SWAB is removed at 2.14
+                * Checking OBD_CONNECT_FID can be removed in the future.
                 *
                 * Via check OBD_CONNECT_FID, we can distinguish whether
                 * the OBD_CONNECT_MDS_MDS/OBD_CONNECT_MNE_SWAB is from
@@ -1340,6 +1367,8 @@ no_export:
                        } else {
                                msg = "already passed deadline";
                                timeout = -left;
+
+                               target_check_recovery_timer(target);
                        }
 
                        LCONSOLE_WARN("%s: Denying connection for new client %s (at %s), waiting for %d known clients (%d recovered, %d in progress, and %d evicted) %s %lld:%.02lld\n",
@@ -1418,11 +1447,8 @@ dont_check_exports:
 
        if (export->exp_connection != NULL) {
                /* Check to see if connection came from another NID. */
-               if ((export->exp_connection->c_peer.nid != req->rq_peer.nid) &&
-                   !hlist_unhashed(&export->exp_nid_hash))
-                       cfs_hash_del(export->exp_obd->obd_nid_hash,
-                                    &export->exp_connection->c_peer.nid,
-                                    &export->exp_nid_hash);
+               if (export->exp_connection->c_peer.nid != req->rq_peer.nid)
+                       obd_nid_del(export->exp_obd, export);
 
                ptlrpc_connection_put(export->exp_connection);
        }
@@ -1430,10 +1456,10 @@ dont_check_exports:
        export->exp_connection = ptlrpc_connection_get(req->rq_peer,
                                                       req->rq_self,
                                                       &cluuid);
-       if (hlist_unhashed(&export->exp_nid_hash))
-               cfs_hash_add(export->exp_obd->obd_nid_hash,
-                            &export->exp_connection->c_peer.nid,
-                            &export->exp_nid_hash);
+       if (!export->exp_connection)
+               GOTO(out, rc = -ENOTCONN);
+
+       obd_nid_add(export->exp_obd, export);
 
        lustre_msg_set_handle(req->rq_repmsg, &conn);
 
@@ -1647,8 +1673,8 @@ static void target_finish_recovery(struct lu_target *lut)
                elapsed_time = max_t(time64_t, now - obd->obd_recovery_start,
                                     1);
                LCONSOLE_INFO("%s: Recovery over after %lld:%.02lld, of %d clients %d recovered and %d %s evicted.\n",
-                             obd->obd_name, (s64)elapsed_time / 60,
-                             (s64)elapsed_time % 60,
+                             obd->obd_name, elapsed_time / 60,
+                             elapsed_time % 60,
                              atomic_read(&obd->obd_max_recoverable_clients),
                              atomic_read(&obd->obd_connected_clients),
                              obd->obd_stale_clients,
@@ -1805,7 +1831,7 @@ static void target_start_recovery_timer(struct obd_device *obd)
        hrtimer_start(&obd->obd_recovery_timer, delay, HRTIMER_MODE_ABS);
        spin_unlock(&obd->obd_dev_lock);
 
-       LCONSOLE_WARN("%s: Will be in recovery for at least %lu:%02lu, or until %d client%s reconnect%s\n",
+       LCONSOLE_WARN("%s: Will be in recovery for at least %u:%02u, or until %d client%s reconnect%s\n",
                      obd->obd_name,
                      obd->obd_recovery_timeout / 60,
                      obd->obd_recovery_timeout % 60,
@@ -1823,12 +1849,12 @@ static void target_start_recovery_timer(struct obd_device *obd)
  * at least; otherwise, make sure the recovery timeout value is not less
  * than @dr_timeout.
  */
-static void extend_recovery_timer(struct obd_device *obd, time_t dr_timeout,
+static void extend_recovery_timer(struct obd_device *obd, timeout_t dr_timeout,
                                  bool extend)
 {
        ktime_t left_ns;
-       time_t timeout;
-       time_t left;
+       timeout_t timeout;
+       timeout_t left;
 
        spin_lock(&obd->obd_dev_lock);
        if (!obd->obd_recovering || obd->obd_abort_recovery ||
@@ -1849,16 +1875,17 @@ static void extend_recovery_timer(struct obd_device *obd, time_t dr_timeout,
                 */
                if (dr_timeout > left) {
                        timeout += dr_timeout - left;
-                       timeout = min_t(time_t, obd->obd_recovery_time_hard,
+                       timeout = min_t(timeout_t, obd->obd_recovery_time_hard,
                                        timeout);
                }
        } else {
-               timeout = clamp_t(time_t, dr_timeout, obd->obd_recovery_timeout,
+               timeout = clamp_t(timeout_t, dr_timeout,
+                                 obd->obd_recovery_timeout,
                                  obd->obd_recovery_time_hard);
        }
 
        if (timeout == obd->obd_recovery_time_hard)
-               CWARN("%s: extended recovery timer reached hard limit: %ld, extend: %d\n",
+               CWARN("%s: extended recovery timer reached hard limit: %d, extend: %d\n",
                      obd->obd_name, timeout, extend);
 
        if (obd->obd_recovery_timeout < timeout) {
@@ -1873,7 +1900,7 @@ static void extend_recovery_timer(struct obd_device *obd, time_t dr_timeout,
        }
        spin_unlock(&obd->obd_dev_lock);
 
-       CDEBUG(D_HA, "%s: recovery timer will expire in %ld seconds\n",
+       CDEBUG(D_HA, "%s: recovery timer will expire in %d seconds\n",
                obd->obd_name, left);
 }
 
@@ -1892,40 +1919,40 @@ check_and_start_recovery_timer(struct obd_device *obd,
                               struct ptlrpc_request *req,
                               int new_client)
 {
-       time_t service_time = lustre_msg_get_service_time(req->rq_reqmsg);
+       timeout_t service_timeout = lustre_msg_get_service_timeout(req->rq_reqmsg);
        struct obd_device_target *obt = &obd->u.obt;
 
-       if (!new_client && service_time)
+       if (!new_client && service_timeout)
                /*
                 * Teach server about old server's estimates, as first guess
                 * at how long new requests will take.
                 */
                at_measured(&req->rq_rqbd->rqbd_svcpt->scp_at_estimate,
-                           service_time);
+                           service_timeout);
 
        target_start_recovery_timer(obd);
 
        /*
         * Convert the service time to RPC timeout,
-        * and reuse service_time to limit stack usage.
+        * and reuse service_timeout to limit stack usage.
         */
-       service_time = at_est2timeout(service_time);
+       service_timeout = at_est2timeout(service_timeout);
 
        if (OBD_FAIL_CHECK(OBD_FAIL_TGT_SLUGGISH_NET) &&
-           service_time < at_extra)
-               service_time = at_extra;
+           service_timeout < at_extra)
+               service_timeout = at_extra;
 
        /*
-        * We expect other clients to timeout within service_time, then try
+        * We expect other clients to timeout within service_timeout, then try
         * to reconnect, then try the failover server.  The max delay between
         * connect attempts is SWITCH_MAX + SWITCH_INC + INITIAL.
         */
-       service_time += 2 * INITIAL_CONNECT_TIMEOUT;
+       service_timeout += 2 * INITIAL_CONNECT_TIMEOUT;
 
        LASSERT(obt->obt_magic == OBT_MAGIC);
-       service_time += 2 * (CONNECTION_SWITCH_MAX + CONNECTION_SWITCH_INC);
-       if (service_time > obd->obd_recovery_timeout && !new_client)
-               extend_recovery_timer(obd, service_time, false);
+       service_timeout += 2 * (CONNECTION_SWITCH_MAX + CONNECTION_SWITCH_INC);
+       if (service_timeout > obd->obd_recovery_timeout && !new_client)
+               extend_recovery_timer(obd, service_timeout, false);
 }
 
 /** Health checking routines */
@@ -2277,14 +2304,15 @@ static void handle_recovery_req(struct ptlrpc_thread *thread,
 
        /* don't reset timer for final stage */
        if (!exp_finished(req->rq_export)) {
-               time_t to = obd_timeout;
+               timeout_t timeout = obd_timeout;
 
                /**
-                * Add request timeout to the recovery time so next request from
+                * Add request @timeout to the recovery time so next request from
                 * this client may come in recovery time
                 */
                if (!AT_OFF) {
                        struct ptlrpc_service_part *svcpt;
+                       timeout_t est_timeout;
 
                        svcpt = req->rq_rqbd->rqbd_svcpt;
                        /*
@@ -2294,18 +2322,19 @@ static void handle_recovery_req(struct ptlrpc_thread *thread,
                         * use the maxium timeout here for waiting the client
                         * sending the next req
                         */
-                       to = max_t(time_t,
-                                  at_est2timeout(at_get(&svcpt->scp_at_estimate)),
-                                  lustre_msg_get_timeout(req->rq_reqmsg));
+                       est_timeout = at_get(&svcpt->scp_at_estimate);
+                       timeout = max_t(timeout_t, at_est2timeout(est_timeout),
+                                       lustre_msg_get_timeout(req->rq_reqmsg));
                        /*
                         * Add 2 net_latency, one for balance rq_deadline
                         * (see ptl_send_rpc), one for resend the req to server,
                         * Note: client will pack net_latency in replay req
                         * (see ptlrpc_replay_req)
                         */
-                       to += 2 * lustre_msg_get_service_time(req->rq_reqmsg);
+                       timeout += 2 * lustre_msg_get_service_timeout(req->rq_reqmsg);
                }
-               extend_recovery_timer(class_exp2obd(req->rq_export), to, true);
+               extend_recovery_timer(class_exp2obd(req->rq_export), timeout,
+                                     true);
        }
        EXIT;
 }
@@ -2340,7 +2369,7 @@ static int check_for_recovery_ready(struct lu_target *lut)
                        extend_recovery_timer(obd, obd->obd_recovery_timeout,
                                              true);
                        CDEBUG(D_HA,
-                              "%s update recovery is not ready, extend recovery %lu\n",
+                              "%s update recovery is not ready, extend recovery %d\n",
                               obd->obd_name, obd->obd_recovery_timeout);
                        return 0;
                }
@@ -2507,7 +2536,7 @@ static void replay_request_or_update(struct lu_env *env,
                                continue;
                        }
 
-                       LASSERT(trd->trd_processing_task == current_pid());
+                       LASSERT(trd->trd_processing_task == current->pid);
                        DEBUG_REQ(D_HA, req, "processing x%llu t%lld from %s",
                                  req->rq_xid,
                                  lustre_msg_get_transno(req->rq_reqmsg),
@@ -2608,8 +2637,8 @@ static int target_recovery_thread(void *arg)
        tgt_io_thread_init(thread); /* init thread_big_cache for IO requests */
 
        CDEBUG(D_HA, "%s: started recovery thread pid %d\n", obd->obd_name,
-              current_pid());
-       trd->trd_processing_task = current_pid();
+              current->pid);
+       trd->trd_processing_task = current->pid;
 
        spin_lock(&obd->obd_dev_lock);
        obd->obd_recovering = 1;
@@ -2638,7 +2667,7 @@ static int target_recovery_thread(void *arg)
        CDEBUG(D_INFO, "2: lock replay stage - %d clients\n",
               atomic_read(&obd->obd_lock_replay_clients));
        while ((req = target_next_replay_lock(lut))) {
-               LASSERT(trd->trd_processing_task == current_pid());
+               LASSERT(trd->trd_processing_task == current->pid);
                DEBUG_REQ(D_HA, req, "processing lock from %s:",
                          libcfs_nid2str(req->rq_peer.nid));
                handle_recovery_req(thread, req,
@@ -2666,7 +2695,7 @@ static int target_recovery_thread(void *arg)
        target_cancel_recovery_timer(obd);
        spin_unlock(&obd->obd_recovery_task_lock);
        while ((req = target_next_final_ping(obd))) {
-               LASSERT(trd->trd_processing_task == current_pid());
+               LASSERT(trd->trd_processing_task == current->pid);
                DEBUG_REQ(D_HA, req, "processing final ping from %s:",
                          libcfs_nid2str(req->rq_peer.nid));
                handle_recovery_req(thread, req,
@@ -2763,7 +2792,7 @@ static enum hrtimer_restart target_recovery_expired(struct hrtimer *timer)
        CDEBUG(D_HA,
               "%s: recovery timed out; %d clients are still in recovery after %llu seconds (%d clients connected)\n",
               obd->obd_name, atomic_read(&obd->obd_lock_replay_clients),
-              ktime_get_real_seconds() - obd->obd_recovery_start,
+              ktime_get_seconds() - obd->obd_recovery_start,
               atomic_read(&obd->obd_connected_clients));
 
        obd->obd_recovery_expired = 1;
@@ -2847,7 +2876,7 @@ int target_queue_recovery_request(struct ptlrpc_request *req,
 
        ENTRY;
 
-       if (obd->obd_recovery_data.trd_processing_task == current_pid()) {
+       if (obd->obd_recovery_data.trd_processing_task == current->pid) {
                /* Processing the queue right now, don't re-add. */
                RETURN(1);
        }
@@ -2861,8 +2890,8 @@ int target_queue_recovery_request(struct ptlrpc_request *req,
                                cfs_fail_val = 0;
                                wake_up(&cfs_race_waitq);
 
-                               set_current_state(TASK_INTERRUPTIBLE);
-                               schedule_timeout(cfs_time_seconds(1));
+                               schedule_timeout_interruptible(
+                                       cfs_time_seconds(1));
                        }
                }