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LU-9679 lustre: use LIST_HEAD() for local lists.
[fs/lustre-release.git] / lustre / ldlm / ldlm_lib.c
index ebe3f33..feacd50 100644 (file)
@@ -413,7 +413,9 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
        init_waitqueue_head(&cli->cl_destroy_waitq);
        atomic_set(&cli->cl_destroy_in_flight, 0);
 
+
        cli->cl_supp_cksum_types = OBD_CKSUM_CRC32;
+       cli->cl_preferred_cksum_type = 0;
 #ifdef ENABLE_CHECKSUM
        /* Turn on checksumming by default. */
        cli->cl_checksum = 1;
@@ -432,7 +434,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
         */
        cli->cl_max_pages_per_rpc = PTLRPC_MAX_BRW_PAGES;
 
-       cli->cl_max_short_io_bytes = OBD_MAX_SHORT_IO_BYTES;
+       cli->cl_max_short_io_bytes = OBD_DEF_SHORT_IO_BYTES;
 
        /*
         * set cl_chunkbits default value to PAGE_SHIFT,
@@ -843,7 +845,7 @@ static int target_handle_reconnect(struct lustre_handle *conn,
                              target->obd_name,
                              obd_uuid2str(&exp->exp_client_uuid),
                              obd_export_nid2str(exp),
-                             target->obd_max_recoverable_clients,
+                             atomic_read(&target->obd_max_recoverable_clients),
                              timeout / 60, timeout % 60);
        } else {
                struct target_distribute_txn_data *tdtd;
@@ -1085,6 +1087,8 @@ int target_handle_connect(struct ptlrpc_request *req)
 
        size = req_capsule_get_size(&req->rq_pill, &RMF_CONNECT_DATA,
                                    RCL_CLIENT);
+       if (size < 0 || size > 8 * sizeof(struct obd_connect_data))
+               GOTO(out, rc = -EPROTO);
        data = req_capsule_client_get(&req->rq_pill, &RMF_CONNECT_DATA);
        if (!data)
                GOTO(out, rc = -EPROTO);
@@ -1172,7 +1176,7 @@ int target_handle_connect(struct ptlrpc_request *req)
        if (obd_uuid_equals(&cluuid, &target->obd_uuid))
                goto dont_check_exports;
 
-       export = cfs_hash_lookup(target->obd_uuid_hash, &cluuid);
+       export = obd_uuid_lookup(target, &cluuid);
        if (!export)
                goto no_export;
 
@@ -1240,6 +1244,10 @@ int target_handle_connect(struct ptlrpc_request *req)
                rc = -EALREADY;
                class_export_put(export);
                export = NULL;
+       } else if (OBD_FAIL_PRECHECK(OBD_FAIL_TGT_RECOVERY_CONNECT) &&
+                  !lw_client) {
+               spin_unlock(&export->exp_lock);
+               rc = -EAGAIN;
        } else {
                export->exp_connecting = 1;
                spin_unlock(&export->exp_lock);
@@ -1257,7 +1265,7 @@ no_export:
                LCONSOLE_WARN("%s: Client %s (at %s) refused connection, still busy with %d references\n",
                              target->obd_name, cluuid.uuid,
                              libcfs_nid2str(req->rq_peer.nid),
-                             atomic_read(&export->exp_refcount));
+                             refcount_read(&export->exp_handle.h_ref));
                        GOTO(out, rc = -EBUSY);
        } else if (lustre_msg_get_conn_cnt(req->rq_reqmsg) == 1 &&
                   rc != EALREADY) {
@@ -1276,7 +1284,7 @@ no_export:
        CDEBUG(D_HA, "%s: connection from %s@%s %st%llu exp %p cur %lld last %lld\n",
               target->obd_name, cluuid.uuid, libcfs_nid2str(req->rq_peer.nid),
               target->obd_recovering ? "recovering/" : "", data->ocd_transno,
-              export, ktime_get_real_seconds(),
+              export, ktime_get_seconds(),
               export ? export->exp_last_request_time : 0);
 
        /*
@@ -1320,7 +1328,8 @@ no_export:
 
                        connected = atomic_read(&target->obd_connected_clients);
                        in_progress = atomic_read(&target->obd_lock_replay_clients);
-                       known = target->obd_max_recoverable_clients;
+                       known =
+                          atomic_read(&target->obd_max_recoverable_clients);
                        stale = target->obd_stale_clients;
                        remaining = hrtimer_expires_remaining(timer);
                        left = ktime_divns(remaining, NSEC_PER_SEC);
@@ -1476,9 +1485,10 @@ dont_check_exports:
                 * condition.
                 */
                if (new_mds_mds_conn)
-                       target->obd_max_recoverable_clients++;
+                       atomic_inc(&target->obd_max_recoverable_clients);
+
                if (atomic_inc_return(&target->obd_connected_clients) ==
-                   target->obd_max_recoverable_clients)
+                   atomic_read(&target->obd_max_recoverable_clients))
                        wake_up(&target->obd_next_transno_waitq);
        }
 
@@ -1631,7 +1641,7 @@ static void target_finish_recovery(struct lu_target *lut)
 
        /* Only log a recovery message when recovery has occurred. */
        if (obd->obd_recovery_start) {
-               time64_t now = ktime_get_real_seconds();
+               time64_t now = ktime_get_seconds();
                time64_t elapsed_time;
 
                elapsed_time = max_t(time64_t, now - obd->obd_recovery_start,
@@ -1639,7 +1649,7 @@ static void target_finish_recovery(struct lu_target *lut)
                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_max_recoverable_clients,
+                             atomic_read(&obd->obd_max_recoverable_clients),
                              atomic_read(&obd->obd_connected_clients),
                              obd->obd_stale_clients,
                              obd->obd_stale_clients == 1 ? "was" : "were");
@@ -1662,7 +1672,7 @@ static void target_finish_recovery(struct lu_target *lut)
        }
        spin_unlock(&obd->obd_recovery_task_lock);
 
-       obd->obd_recovery_end = ktime_get_real_seconds();
+       obd->obd_recovery_end = ktime_get_seconds();
 
        /* When recovery finished, cleanup orphans on MDS and OST. */
        if (obd->obd_type && OBP(obd, postrecov)) {
@@ -1678,9 +1688,8 @@ static void target_finish_recovery(struct lu_target *lut)
 static void abort_req_replay_queue(struct obd_device *obd)
 {
        struct ptlrpc_request *req, *n;
-       struct list_head abort_list;
+       LIST_HEAD(abort_list);
 
-       INIT_LIST_HEAD(&abort_list);
        spin_lock(&obd->obd_recovery_task_lock);
        list_splice_init(&obd->obd_req_replay_queue, &abort_list);
        spin_unlock(&obd->obd_recovery_task_lock);
@@ -1699,9 +1708,8 @@ static void abort_req_replay_queue(struct obd_device *obd)
 static void abort_lock_replay_queue(struct obd_device *obd)
 {
        struct ptlrpc_request *req, *n;
-       struct list_head abort_list;
+       LIST_HEAD(abort_list);
 
-       INIT_LIST_HEAD(&abort_list);
        spin_lock(&obd->obd_recovery_task_lock);
        list_splice_init(&obd->obd_lock_replay_queue, &abort_list);
        spin_unlock(&obd->obd_recovery_task_lock);
@@ -1728,9 +1736,8 @@ static void abort_lock_replay_queue(struct obd_device *obd)
 void target_cleanup_recovery(struct obd_device *obd)
 {
        struct ptlrpc_request *req, *n;
-       struct list_head clean_list;
+       LIST_HEAD(clean_list);
 
-       INIT_LIST_HEAD(&clean_list);
        spin_lock(&obd->obd_dev_lock);
        if (!obd->obd_recovering) {
                spin_unlock(&obd->obd_dev_lock);
@@ -1792,18 +1799,21 @@ static void target_start_recovery_timer(struct obd_device *obd)
                return;
        }
 
-       delay = ktime_set(obd->obd_recovery_timeout, 0);
-       hrtimer_start(&obd->obd_recovery_timer, delay, HRTIMER_MODE_REL);
-       obd->obd_recovery_start = ktime_get_real_seconds();
+       obd->obd_recovery_start = ktime_get_seconds();
+       delay = ktime_set(obd->obd_recovery_start +
+                         obd->obd_recovery_timeout, 0);
+       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",
                      obd->obd_name,
                      obd->obd_recovery_timeout / 60,
                      obd->obd_recovery_timeout % 60,
-                     obd->obd_max_recoverable_clients,
-                     (obd->obd_max_recoverable_clients == 1) ? "" : "s",
-                     (obd->obd_max_recoverable_clients == 1) ? "s" : "");
+                     atomic_read(&obd->obd_max_recoverable_clients),
+                     (atomic_read(&obd->obd_max_recoverable_clients) == 1) ?
+                     "" : "s",
+                     (atomic_read(&obd->obd_max_recoverable_clients) == 1) ?
+                     "s" : "");
 }
 
 /**
@@ -1821,7 +1831,8 @@ static void extend_recovery_timer(struct obd_device *obd, time_t dr_timeout,
        time_t left;
 
        spin_lock(&obd->obd_dev_lock);
-       if (!obd->obd_recovering || obd->obd_abort_recovery) {
+       if (!obd->obd_recovering || obd->obd_abort_recovery ||
+           obd->obd_stopping) {
                spin_unlock(&obd->obd_dev_lock);
                return;
        }
@@ -1851,14 +1862,14 @@ static void extend_recovery_timer(struct obd_device *obd, time_t dr_timeout,
                      obd->obd_name, timeout, extend);
 
        if (obd->obd_recovery_timeout < timeout) {
-               ktime_t now = ktime_get_real();
-               ktime_t end;
+               ktime_t end, now;
 
                obd->obd_recovery_timeout = timeout;
                end = ktime_set(obd->obd_recovery_start + timeout, 0);
+               now = ktime_set(ktime_get_seconds(), 0);
                left_ns = ktime_sub(end, now);
-               hrtimer_forward_now(&obd->obd_recovery_timer, left_ns);
-               left = ktime_divns(left_ns, NSEC_PER_MSEC);
+               hrtimer_start(&obd->obd_recovery_timer, end, HRTIMER_MODE_ABS);
+               left = ktime_divns(left_ns, NSEC_PER_SEC);
        }
        spin_unlock(&obd->obd_dev_lock);
 
@@ -1989,7 +2000,8 @@ static int check_for_next_transno(struct lu_target *lut)
 
        CDEBUG(D_HA,
               "max: %d, connected: %d, completed: %d, queue_len: %d, req_transno: %llu, next_transno: %llu\n",
-              obd->obd_max_recoverable_clients, connected, completed,
+              atomic_read(&obd->obd_max_recoverable_clients),
+              connected, completed,
               queue_len, req_transno, next_transno);
 
        if (obd->obd_abort_recovery) {
@@ -2083,7 +2095,7 @@ repeat:
                        last = now;
                }
        }
-       if (obd->obd_recovery_start != 0 && ktime_get_real_seconds() >=
+       if (obd->obd_recovery_start != 0 && ktime_get_seconds() >=
              (obd->obd_recovery_start + obd->obd_recovery_time_hard)) {
                __u64 next_update_transno = 0;
 
@@ -2103,13 +2115,13 @@ repeat:
                         * yet, let's wait those threads stopped
                         */
                        if (next_update_transno == 0) {
-                               struct l_wait_info lwi = { 0 };
-
-                               l_wait_event(tdtd->tdtd_recovery_threads_waitq,
-                                      atomic_read(
-                                      &tdtd->tdtd_recovery_threads_count) == 0,
-                                      &lwi);
+                               spin_unlock(&obd->obd_recovery_task_lock);
+                               wait_event_idle(
+                                       tdtd->tdtd_recovery_threads_waitq,
+                                       atomic_read(&tdtd->tdtd_recovery_threads_count)
+                                       == 0);
 
+                               spin_lock(&obd->obd_recovery_task_lock);
                                next_update_transno =
                                        distribute_txn_get_next_transno(
                                                                lut->lut_tdtd);
@@ -2149,16 +2161,15 @@ repeat:
        if (obd->obd_abort_recovery) {
                CWARN("recovery is aborted, evict exports in recovery\n");
                if (lut->lut_tdtd != NULL) {
-                       struct l_wait_info lwi = { 0 };
-
                        tdtd = lut->lut_tdtd;
                        /*
                         * Let's wait all of the update log recovery thread
                         * finished
                         */
-                       l_wait_event(tdtd->tdtd_recovery_threads_waitq,
-                        atomic_read(&tdtd->tdtd_recovery_threads_count) == 0,
-                            &lwi);
+                       wait_event_idle(
+                               tdtd->tdtd_recovery_threads_waitq,
+                               atomic_read(&tdtd->tdtd_recovery_threads_count)
+                               == 0);
                        /* Then abort the update recovery list */
                        dtrq_list_destroy(lut->lut_tdtd);
                }
@@ -2166,8 +2177,10 @@ repeat:
                /** evict exports which didn't finish recovery yet */
                class_disconnect_stale_exports(obd, exp_finished);
                return 1;
-       } else if (obd->obd_recovery_expired) {
+       } else if (obd->obd_recovery_expired &&
+                  obd->obd_recovery_timeout < obd->obd_recovery_time_hard) {
                obd->obd_recovery_expired = 0;
+
                /** If some clients died being recovered, evict them */
                LCONSOLE_WARN("%s: recovery is timed out, evict stale exports\n",
                              obd->obd_name);
@@ -2260,6 +2273,8 @@ static void handle_recovery_req(struct ptlrpc_thread *thread,
        (void)handler(req);
        lu_context_exit(&thread->t_env->le_ctx);
 
+       req->rq_svc_thread->t_env->le_ses = NULL;
+
        /* don't reset timer for final stage */
        if (!exp_finished(req->rq_export)) {
                time_t to = obd_timeout;
@@ -2303,19 +2318,21 @@ static int check_for_recovery_ready(struct lu_target *lut)
 
        CDEBUG(D_HA,
               "connected %d stale %d max_recoverable_clients %d abort %d expired %d\n",
-              clnts, obd->obd_stale_clients, obd->obd_max_recoverable_clients,
+              clnts, obd->obd_stale_clients,
+              atomic_read(&obd->obd_max_recoverable_clients),
               obd->obd_abort_recovery, obd->obd_recovery_expired);
 
        if (!obd->obd_abort_recovery && !obd->obd_recovery_expired) {
-               LASSERT(clnts <= obd->obd_max_recoverable_clients);
+               LASSERT(clnts <=
+                       atomic_read(&obd->obd_max_recoverable_clients));
                if (clnts + obd->obd_stale_clients <
-                   obd->obd_max_recoverable_clients)
+                   atomic_read(&obd->obd_max_recoverable_clients))
                        return 0;
        }
 
        if (lut->lut_tdtd != NULL) {
                if (!lut->lut_tdtd->tdtd_replay_ready &&
-                   !obd->obd_abort_recovery) {
+                   !obd->obd_abort_recovery && !obd->obd_stopping) {
                        /*
                         * Let's extend recovery timer, in case the recovery
                         * timer expired, and some clients got evicted
@@ -2395,7 +2412,7 @@ static void drop_duplicate_replay_req(struct lu_env *env,
                                      struct ptlrpc_request *req)
 {
        DEBUG_REQ(D_HA, req,
-                 "remove t%lld from %s because of duplicate update records are found.\n",
+                 "remove t%lld from %s because duplicate update records found",
                  lustre_msg_get_transno(req->rq_reqmsg),
                  libcfs_nid2str(req->rq_peer.nid));
 
@@ -2411,7 +2428,7 @@ static void drop_duplicate_replay_req(struct lu_env *env,
                lustre_msg_set_transno(req->rq_repmsg, req->rq_transno);
                target_send_reply(req, req->rq_status, 0);
        } else {
-               DEBUG_REQ(D_ERROR, req, "wrong opc from %s\n",
+               DEBUG_REQ(D_ERROR, req, "wrong opc from %s",
                libcfs_nid2str(req->rq_peer.nid));
        }
        target_exp_dequeue_req_replay(req);
@@ -2622,7 +2639,7 @@ static int target_recovery_thread(void *arg)
               atomic_read(&obd->obd_lock_replay_clients));
        while ((req = target_next_replay_lock(lut))) {
                LASSERT(trd->trd_processing_task == current_pid());
-               DEBUG_REQ(D_HA, req, "processing lock from %s: ",
+               DEBUG_REQ(D_HA, req, "processing lock from %s:",
                          libcfs_nid2str(req->rq_peer.nid));
                handle_recovery_req(thread, req,
                                    trd->trd_recovery_handler);
@@ -2650,7 +2667,7 @@ static int target_recovery_thread(void *arg)
        spin_unlock(&obd->obd_recovery_task_lock);
        while ((req = target_next_final_ping(obd))) {
                LASSERT(trd->trd_processing_task == current_pid());
-               DEBUG_REQ(D_HA, req, "processing final ping from %s: ",
+               DEBUG_REQ(D_HA, req, "processing final ping from %s:",
                          libcfs_nid2str(req->rq_peer.nid));
                handle_recovery_req(thread, req,
                                    trd->trd_recovery_handler);
@@ -2761,7 +2778,7 @@ void target_recovery_init(struct lu_target *lut, svc_handler_t handler)
        if (lut->lut_bottom->dd_rdonly)
                return;
 
-       if (obd->obd_max_recoverable_clients == 0) {
+       if (atomic_read(&obd->obd_max_recoverable_clients) == 0) {
                /** Update server last boot epoch */
                tgt_boot_epoch_update(lut);
                return;
@@ -2769,14 +2786,15 @@ void target_recovery_init(struct lu_target *lut, svc_handler_t handler)
 
        CDEBUG(D_HA, "RECOVERY: service %s, %d recoverable clients, "
               "last_transno %llu\n", obd->obd_name,
-              obd->obd_max_recoverable_clients, obd->obd_last_committed);
+              atomic_read(&obd->obd_max_recoverable_clients),
+              obd->obd_last_committed);
        LASSERT(obd->obd_stopping == 0);
        obd->obd_next_recovery_transno = obd->obd_last_committed + 1;
        obd->obd_recovery_start = 0;
        obd->obd_recovery_end = 0;
 
-       hrtimer_init(&obd->obd_recovery_timer, CLOCK_REALTIME,
-                    HRTIMER_MODE_REL);
+       hrtimer_init(&obd->obd_recovery_timer, CLOCK_MONOTONIC,
+                    HRTIMER_MODE_ABS);
        obd->obd_recovery_timer.function = &target_recovery_expired;
        target_start_recovery_thread(lut, handler);
 }
@@ -2890,7 +2908,7 @@ int target_queue_recovery_request(struct ptlrpc_request *req,
 
                        if (duplicate != NULL) {
                                DEBUG_REQ(D_HA, duplicate,
-                                         "put prev final req\n");
+                                         "put prev final req");
                                target_request_copy_put(duplicate);
                        }
                        RETURN(0);
@@ -3285,16 +3303,6 @@ void ldlm_dump_export_locks(struct obd_export *exp)
 #endif
 
 #ifdef HAVE_SERVER_SUPPORT
-static int target_bulk_timeout(void *data)
-{
-       ENTRY;
-       /*
-        * We don't fail the connection here, because having the export
-        * killed makes the (vital) call to commitrw very sad.
-        */
-       RETURN(1);
-}
-
 static inline const char *bulk2type(struct ptlrpc_request *req)
 {
        if (req->rq_bulk_read)
@@ -3304,23 +3312,19 @@ static inline const char *bulk2type(struct ptlrpc_request *req)
        return "UNKNOWN";
 }
 
-int target_bulk_io(struct obd_export *exp, struct ptlrpc_bulk_desc *desc,
-                  struct l_wait_info *lwi)
+int target_bulk_io(struct obd_export *exp, struct ptlrpc_bulk_desc *desc)
 {
        struct ptlrpc_request *req = desc->bd_req;
-       time64_t start = ktime_get_real_seconds();
+       time64_t start = ktime_get_seconds();
        time64_t deadline;
        int rc = 0;
 
        ENTRY;
 
        /* If there is eviction in progress, wait for it to finish. */
-       if (unlikely(atomic_read(&exp->exp_obd->obd_evict_inprogress))) {
-               *lwi = LWI_INTR(NULL, NULL);
-               rc = l_wait_event(exp->exp_obd->obd_evict_inprogress_waitq,
-                                 !atomic_read(&exp->exp_obd->obd_evict_inprogress),
-                                 lwi);
-       }
+       wait_event_idle(
+               exp->exp_obd->obd_evict_inprogress_waitq,
+               !atomic_read(&exp->exp_obd->obd_evict_inprogress));
 
        /* Check if client was evicted or reconnected already. */
        if (exp->exp_failed ||
@@ -3340,7 +3344,7 @@ int target_bulk_io(struct obd_export *exp, struct ptlrpc_bulk_desc *desc,
        }
 
        if (rc < 0) {
-               DEBUG_REQ(D_ERROR, req, "bulk %s failed: rc %d",
+               DEBUG_REQ(D_ERROR, req, "bulk %s failed: rc %d",
                          bulk2type(req), rc);
                RETURN(rc);
        }
@@ -3356,28 +3360,27 @@ int target_bulk_io(struct obd_export *exp, struct ptlrpc_bulk_desc *desc,
                deadline = req->rq_deadline;
 
        do {
-               time64_t timeoutl = deadline - ktime_get_real_seconds();
-               long timeout_jiffies = timeoutl <= 0 ?
-                                      1 : cfs_time_seconds(timeoutl);
+               time64_t timeoutl = deadline - ktime_get_seconds();
                time64_t rq_deadline;
 
-               *lwi = LWI_TIMEOUT_INTERVAL(timeout_jiffies,
-                                           cfs_time_seconds(1),
-                                           target_bulk_timeout, desc);
-               rc = l_wait_event(desc->bd_waitq,
-                                 !ptlrpc_server_bulk_active(desc) ||
-                                 exp->exp_failed ||
-                                 exp->exp_conn_cnt >
-                                 lustre_msg_get_conn_cnt(req->rq_reqmsg),
-                                 lwi);
-               LASSERT(rc == 0 || rc == -ETIMEDOUT);
+               while (timeoutl >= 0 &&
+                      wait_event_idle_timeout(
+                              desc->bd_waitq,
+                              !ptlrpc_server_bulk_active(desc) ||
+                              exp->exp_failed ||
+                              exp->exp_conn_cnt >
+                              lustre_msg_get_conn_cnt(req->rq_reqmsg),
+                              timeoutl ? cfs_time_seconds(1) : 1) == 0)
+                       timeoutl -= 1;
+               rc = timeoutl < 0 ? -ETIMEDOUT : 0;
+
                /* Wait again if we changed rq_deadline. */
                rq_deadline = READ_ONCE(req->rq_deadline);
                deadline = start + bulk_timeout;
                if (deadline > rq_deadline)
                        deadline = rq_deadline;
        } while (rc == -ETIMEDOUT &&
-                deadline > ktime_get_real_seconds());
+                deadline > ktime_get_seconds());
 
        if (rc == -ETIMEDOUT) {
                DEBUG_REQ(D_ERROR, req, "timeout on bulk %s after %lld%+llds",