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b=18690 Enable rehashing and increase max hash table sizes.
[fs/lustre-release.git] / lustre / obdclass / obd_config.c
index eb8d415..8a6766f 100644 (file)
 #include <lprocfs_status.h>
 #include <libcfs/list.h>
 #include <lustre_param.h>
-#include <class_hash.h>
 
-static lustre_hash_ops_t uuid_hash_ops;
-static lustre_hash_ops_t nid_hash_ops;
-static lustre_hash_ops_t nid_stat_hash_ops;
+static cfs_hash_ops_t uuid_hash_ops;
+static cfs_hash_ops_t nid_hash_ops;
+static cfs_hash_ops_t nid_stat_hash_ops;
 
 /*********** string parsing utils *********/
 
@@ -247,39 +246,40 @@ int class_attach(struct lustre_cfg *lcfg)
         LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
                  "obd %p obd_magic %08X != %08X\n",
                  obd, obd->obd_magic, OBD_DEVICE_MAGIC);
-        LASSERTF(strncmp(obd->obd_name, name, strlen(name)) == 0, "%p obd_name %s != %s\n",
-                 obd, obd->obd_name, name);
+        LASSERTF(strncmp(obd->obd_name, name, strlen(name)) == 0,
+                 "%p obd_name %s != %s\n", obd, obd->obd_name, name);
 
-        rwlock_init(&obd->obd_pool_lock);
+        cfs_rwlock_init(&obd->obd_pool_lock);
         obd->obd_pool_limit = 0;
         obd->obd_pool_slv = 0;
 
         CFS_INIT_LIST_HEAD(&obd->obd_exports);
+        CFS_INIT_LIST_HEAD(&obd->obd_unlinked_exports);
+        CFS_INIT_LIST_HEAD(&obd->obd_delayed_exports);
         CFS_INIT_LIST_HEAD(&obd->obd_exports_timed);
         CFS_INIT_LIST_HEAD(&obd->obd_nid_stats);
-        spin_lock_init(&obd->obd_nid_lock);
-        spin_lock_init(&obd->obd_dev_lock);
-        sema_init(&obd->obd_dev_sem, 1);
-        spin_lock_init(&obd->obd_osfs_lock);
+        cfs_spin_lock_init(&obd->obd_nid_lock);
+        cfs_spin_lock_init(&obd->obd_dev_lock);
+        cfs_sema_init(&obd->obd_dev_sem, 1);
+        cfs_spin_lock_init(&obd->obd_osfs_lock);
         /* obd->obd_osfs_age must be set to a value in the distant
          * past to guarantee a fresh statfs is fetched on mount. */
         obd->obd_osfs_age = cfs_time_shift_64(-1000);
 
         /* XXX belongs in setup not attach  */
+        cfs_init_rwsem(&obd->obd_observer_link_sem);
         /* recovery data */
         cfs_init_timer(&obd->obd_recovery_timer);
-        spin_lock_init(&obd->obd_processing_task_lock);
+        cfs_spin_lock_init(&obd->obd_processing_task_lock);
         cfs_waitq_init(&obd->obd_next_transno_waitq);
         cfs_waitq_init(&obd->obd_evict_inprogress_waitq);
         CFS_INIT_LIST_HEAD(&obd->obd_req_replay_queue);
         CFS_INIT_LIST_HEAD(&obd->obd_lock_replay_queue);
         CFS_INIT_LIST_HEAD(&obd->obd_final_req_queue);
+        CFS_INIT_LIST_HEAD(&obd->obd_evict_list);
 
         llog_group_init(&obd->obd_olg, FILTER_GROUP_LLOG);
 
-        spin_lock_init(&obd->obd_uncommitted_replies_lock);
-        CFS_INIT_LIST_HEAD(&obd->obd_uncommitted_replies);
-
         len = strlen(uuid);
         if (len >= sizeof(obd->obd_uuid)) {
                 CERROR("uuid must be < %d bytes long\n",
@@ -296,15 +296,15 @@ int class_attach(struct lustre_cfg *lcfg)
         }
 
         /* Detach drops this */
-        spin_lock(&obd->obd_dev_lock);
-        atomic_set(&obd->obd_refcount, 1);
-        spin_unlock(&obd->obd_dev_lock);
+        cfs_spin_lock(&obd->obd_dev_lock);
+        cfs_atomic_set(&obd->obd_refcount, 1);
+        cfs_spin_unlock(&obd->obd_dev_lock);
         lu_ref_init(&obd->obd_reference);
         lu_ref_add(&obd->obd_reference, "attach", obd);
 
         obd->obd_attached = 1;
         CDEBUG(D_IOCTL, "OBD: dev %d attached type %s with refcount %d\n",
-               obd->obd_minor, typename, atomic_read(&obd->obd_refcount));
+               obd->obd_minor, typename, cfs_atomic_read(&obd->obd_refcount));
         RETURN(0);
  out:
         if (obd != NULL) {
@@ -340,9 +340,9 @@ int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
         }
 
         /* is someone else setting us up right now? (attach inits spinlock) */
-        spin_lock(&obd->obd_dev_lock);
+        cfs_spin_lock(&obd->obd_dev_lock);
         if (obd->obd_starting) {
-                spin_unlock(&obd->obd_dev_lock);
+                cfs_spin_unlock(&obd->obd_dev_lock);
                 CERROR("Device %d setup in progress (type %s)\n",
                        obd->obd_minor, obd->obd_type->typ_name);
                 RETURN(-EEXIST);
@@ -353,23 +353,29 @@ int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
         obd->obd_uuid_hash = NULL;
         obd->obd_nid_hash = NULL;
         obd->obd_nid_stats_hash = NULL;
-        spin_unlock(&obd->obd_dev_lock);
+        cfs_spin_unlock(&obd->obd_dev_lock);
 
         /* create an uuid-export lustre hash */
-        obd->obd_uuid_hash = lustre_hash_init("UUID_HASH", 7, 7,
-                                              &uuid_hash_ops, 0);
+        obd->obd_uuid_hash = cfs_hash_create("UUID_HASH",
+                                             HASH_UUID_CUR_BITS,
+                                             HASH_UUID_MAX_BITS,
+                                             &uuid_hash_ops, CFS_HASH_REHASH);
         if (!obd->obd_uuid_hash)
                 GOTO(err_hash, err = -ENOMEM);
+
         /* create a nid-export lustre hash */
-        obd->obd_nid_hash = lustre_hash_init("NID_HASH", 7, 7,
-                                             &nid_hash_ops, 0);
+        obd->obd_nid_hash = cfs_hash_create("NID_HASH",
+                                            HASH_NID_CUR_BITS,
+                                            HASH_NID_MAX_BITS,
+                                            &nid_hash_ops, CFS_HASH_REHASH);
         if (!obd->obd_nid_hash)
                 GOTO(err_hash, err = -ENOMEM);
+
         /* create a nid-stats lustre hash */
-        obd->obd_nid_stats_hash = lustre_hash_init("NID_STATS", 7, 7,
-                                                   &nid_stat_hash_ops, 0);
+        obd->obd_nid_stats_hash = cfs_hash_create("NID_STATS",
+                                                  HASH_NID_STATS_CUR_BITS,
+                                                  HASH_NID_STATS_MAX_BITS,
+                                                  &nid_stat_hash_ops, CFS_HASH_REHASH);
         if (!obd->obd_nid_stats_hash)
                 GOTO(err_hash, err = -ENOMEM);
 
@@ -378,7 +384,7 @@ int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
                 GOTO(err_hash, err = PTR_ERR(exp));
 
         obd->obd_self_export = exp;
-        list_del_init(&exp->exp_obd_chain_timed);
+        cfs_list_del_init(&exp->exp_obd_chain_timed);
         class_export_put(exp);
 
         err = obd_setup(obd, lcfg);
@@ -387,10 +393,10 @@ int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 
         obd->obd_set_up = 1;
 
-        spin_lock(&obd->obd_dev_lock);
+        cfs_spin_lock(&obd->obd_dev_lock);
         /* cleanup drops this */
         class_incref(obd, "setup", obd);
-        spin_unlock(&obd->obd_dev_lock);
+        cfs_spin_unlock(&obd->obd_dev_lock);
 
         CDEBUG(D_IOCTL, "finished setup of obd %s (uuid %s)\n",
                obd->obd_name, obd->obd_uuid.uuid);
@@ -403,15 +409,15 @@ err_exp:
         }
 err_hash:
         if (obd->obd_uuid_hash) {
-                lustre_hash_exit(obd->obd_uuid_hash);
+                cfs_hash_destroy(obd->obd_uuid_hash);
                 obd->obd_uuid_hash = NULL;
         }
         if (obd->obd_nid_hash) {
-                lustre_hash_exit(obd->obd_nid_hash);
+                cfs_hash_destroy(obd->obd_nid_hash);
                 obd->obd_nid_hash = NULL;
         }
         if (obd->obd_nid_stats_hash) {
-                lustre_hash_exit(obd->obd_nid_stats_hash);
+                cfs_hash_destroy(obd->obd_nid_stats_hash);
                 obd->obd_nid_stats_hash = NULL;
         }
         obd->obd_starting = 0;
@@ -428,14 +434,14 @@ int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg)
                 RETURN(-EBUSY);
         }
 
-        spin_lock(&obd->obd_dev_lock);
+        cfs_spin_lock(&obd->obd_dev_lock);
         if (!obd->obd_attached) {
-                spin_unlock(&obd->obd_dev_lock);
+                cfs_spin_unlock(&obd->obd_dev_lock);
                 CERROR("OBD device %d not attached\n", obd->obd_minor);
                 RETURN(-ENODEV);
         }
         obd->obd_attached = 0;
-        spin_unlock(&obd->obd_dev_lock);
+        cfs_spin_unlock(&obd->obd_dev_lock);
 
         CDEBUG(D_IOCTL, "detach on obd %s (uuid %s)\n",
                obd->obd_name, obd->obd_uuid.uuid);
@@ -448,35 +454,6 @@ int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg)
         RETURN(0);
 }
 
-static void dump_exports(struct obd_device *obd)
-{
-        struct obd_export *exp;
-
-        spin_lock(&obd->obd_dev_lock);
-        list_for_each_entry(exp, &obd->obd_exports, exp_obd_chain) {
-                struct ptlrpc_reply_state *rs;
-                struct ptlrpc_reply_state *first_reply = NULL;
-                int                        nreplies = 0;
-
-                spin_lock(&exp->exp_lock);
-                list_for_each_entry (rs, &exp->exp_outstanding_replies,
-                                     rs_exp_list) {
-                        if (nreplies == 0)
-                                first_reply = rs;
-                        nreplies++;
-                }
-                spin_unlock(&exp->exp_lock);
-
-                CDEBUG(D_IOCTL, "%s: %p %s %s %d %d %d: %p %s\n",
-                       obd->obd_name, exp, exp->exp_client_uuid.uuid,
-                       obd_export_nid2str(exp),
-                       atomic_read(&exp->exp_refcount),
-                       exp->exp_failed, nreplies, first_reply,
-                       nreplies > 3 ? "..." : "");
-        }
-        spin_unlock(&obd->obd_dev_lock);
-}
-
 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg)
 {
         int err = 0;
@@ -490,16 +467,16 @@ int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg)
                 RETURN(-ENODEV);
         }
 
-        spin_lock(&obd->obd_dev_lock);
+        cfs_spin_lock(&obd->obd_dev_lock);
         if (obd->obd_stopping) {
-                spin_unlock(&obd->obd_dev_lock);
+                cfs_spin_unlock(&obd->obd_dev_lock);
                 CERROR("OBD %d already stopping\n", obd->obd_minor);
                 RETURN(-ENODEV);
         }
         /* Leave this on forever */
         obd->obd_stopping = 1;
-        spin_unlock(&obd->obd_dev_lock);
-        
+        cfs_spin_unlock(&obd->obd_dev_lock);
+
         if (lcfg->lcfg_bufcount >= 2 && LUSTRE_CFG_BUFLEN(lcfg, 1) > 0) {
                 for (flag = lustre_cfg_string(lcfg, 1); *flag != 0; flag++)
                         switch (*flag) {
@@ -531,31 +508,31 @@ int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg)
 
         /* The three references that should be remaining are the
          * obd_self_export and the attach and setup references. */
-        if (atomic_read(&obd->obd_refcount) > 3) {
+        if (cfs_atomic_read(&obd->obd_refcount) > 3) {
                 /* refcounf - 3 might be the number of real exports
                    (excluding self export). But class_incref is called
                    by other things as well, so don't count on it. */
                 CDEBUG(D_IOCTL, "%s: forcing exports to disconnect: %d\n",
-                       obd->obd_name, atomic_read(&obd->obd_refcount) - 3);
-                dump_exports(obd);
+                       obd->obd_name, cfs_atomic_read(&obd->obd_refcount) - 3);
+                dump_exports(obd, 0);
                 class_disconnect_exports(obd);
         }
 
         /* destroy an uuid-export hash body */
         if (obd->obd_uuid_hash) {
-                lustre_hash_exit(obd->obd_uuid_hash);
+                cfs_hash_destroy(obd->obd_uuid_hash);
                 obd->obd_uuid_hash = NULL;
         }
 
         /* destroy a nid-export hash body */
         if (obd->obd_nid_hash) {
-                lustre_hash_exit(obd->obd_nid_hash);
+                cfs_hash_destroy(obd->obd_nid_hash);
                 obd->obd_nid_hash = NULL;
         }
 
         /* destroy a nid-stats hash body */
         if (obd->obd_nid_stats_hash) {
-                lustre_hash_exit(obd->obd_nid_stats_hash);
+                cfs_hash_destroy(obd->obd_nid_stats_hash);
                 obd->obd_nid_stats_hash = NULL;
         }
 
@@ -573,9 +550,9 @@ struct obd_device *class_incref(struct obd_device *obd,
                                 const char *scope, const void *source)
 {
         lu_ref_add_atomic(&obd->obd_reference, scope, source);
-        atomic_inc(&obd->obd_refcount);
+        cfs_atomic_inc(&obd->obd_refcount);
         CDEBUG(D_INFO, "incref %s (%p) now %d\n", obd->obd_name, obd,
-               atomic_read(&obd->obd_refcount));
+               cfs_atomic_read(&obd->obd_refcount));
 
         return obd;
 }
@@ -585,10 +562,10 @@ void class_decref(struct obd_device *obd, const char *scope, const void *source)
         int err;
         int refs;
 
-        spin_lock(&obd->obd_dev_lock);
-        atomic_dec(&obd->obd_refcount);
-        refs = atomic_read(&obd->obd_refcount);
-        spin_unlock(&obd->obd_dev_lock);
+        cfs_spin_lock(&obd->obd_dev_lock);
+        cfs_atomic_dec(&obd->obd_refcount);
+        refs = cfs_atomic_read(&obd->obd_refcount);
+        cfs_spin_unlock(&obd->obd_dev_lock);
         lu_ref_del(&obd->obd_reference, scope, source);
 
         CDEBUG(D_INFO, "Decref %s (%p) now %d\n", obd->obd_name, obd, refs);
@@ -597,11 +574,9 @@ void class_decref(struct obd_device *obd, const char *scope, const void *source)
                 /* All exports have been destroyed; there should
                    be no more in-progress ops by this point.*/
 
-                spin_lock(&obd->obd_self_export->exp_lock);
-                obd->obd_self_export->exp_flags |=
-                        (obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
-                        (obd->obd_force ? OBD_OPT_FORCE : 0);
-                spin_unlock(&obd->obd_self_export->exp_lock);
+                cfs_spin_lock(&obd->obd_self_export->exp_lock);
+                obd->obd_self_export->exp_flags |= exp_flags_from_obd(obd);
+                cfs_spin_unlock(&obd->obd_self_export->exp_lock);
 
                 /* note that we'll recurse into class_decref again */
                 class_unlink_export(obd->obd_self_export);
@@ -696,7 +671,7 @@ struct lustre_profile *class_get_profile(const char * prof)
         struct lustre_profile *lprof;
 
         ENTRY;
-        list_for_each_entry(lprof, &lustre_profile_list, lp_list) {
+        cfs_list_for_each_entry(lprof, &lustre_profile_list, lp_list) {
                 if (!strcmp(lprof->lp_profile, prof)) {
                         RETURN(lprof);
                 }
@@ -738,7 +713,7 @@ int class_add_profile(int proflen, char *prof, int osclen, char *osc,
                 memcpy(lprof->lp_md, mdc, mdclen);
         }
 
-        list_add(&lprof->lp_list, &lustre_profile_list);
+        cfs_list_add(&lprof->lp_list, &lustre_profile_list);
         RETURN(err);
 
 out:
@@ -761,7 +736,7 @@ void class_del_profile(const char *prof)
 
         lprof = class_get_profile(prof);
         if (lprof) {
-                list_del(&lprof->lp_list);
+                cfs_list_del(&lprof->lp_list);
                 OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
                 OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
                 if (lprof->lp_md)
@@ -777,8 +752,8 @@ void class_del_profiles(void)
         struct lustre_profile *lprof, *n;
         ENTRY;
 
-        list_for_each_entry_safe(lprof, n, &lustre_profile_list, lp_list) {
-                list_del(&lprof->lp_list);
+        cfs_list_for_each_entry_safe(lprof, n, &lustre_profile_list, lp_list) {
+                cfs_list_del(&lprof->lp_list);
                 OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
                 OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
                 if (lprof->lp_md)
@@ -788,6 +763,28 @@ void class_del_profiles(void)
         EXIT;
 }
 
+static int class_set_global(char *ptr, int val) {
+        ENTRY;
+
+        if (class_match_param(ptr, PARAM_AT_MIN, NULL) == 0)
+            at_min = val;
+        else if (class_match_param(ptr, PARAM_AT_MAX, NULL) == 0)
+                at_max = val;
+        else if (class_match_param(ptr, PARAM_AT_EXTRA, NULL) == 0)
+                at_extra = val;
+        else if (class_match_param(ptr, PARAM_AT_EARLY_MARGIN, NULL) == 0)
+                at_early_margin = val;
+        else if (class_match_param(ptr, PARAM_AT_HISTORY, NULL) == 0)
+                at_history = val;
+        else
+                RETURN(-EINVAL);
+
+        CDEBUG(D_IOCTL, "global %s = %d\n", ptr, val);
+
+        RETURN(0);
+}
+
+
 /* We can't call ll_process_config directly because it lives in a module that
    must be loaded after this one. */
 static int (*client_process_config)(struct lustre_cfg *lcfg) = NULL;
@@ -855,6 +852,15 @@ int class_process_config(struct lustre_cfg *lcfg)
                 obd_timeout = max(lcfg->lcfg_num, 1U);
                 GOTO(out, err = 0);
         }
+        case LCFG_SET_LDLM_TIMEOUT: {
+                CDEBUG(D_IOCTL, "changing lustre ldlm_timeout from %d to %d\n",
+                       ldlm_timeout, lcfg->lcfg_num);
+                ldlm_timeout = max(lcfg->lcfg_num, 1U);
+                if (ldlm_timeout >= obd_timeout)
+                        ldlm_timeout = max(obd_timeout / 3, 1U);
+
+                GOTO(out, err = 0);
+        }
         case LCFG_SET_UPCALL: {
                 LCONSOLE_ERROR_MSG(0x15a, "recovery upcall is deprecated\n");
                 /* COMPAT_146 Don't fail on old configs */
@@ -868,13 +874,24 @@ int class_process_config(struct lustre_cfg *lcfg)
                 GOTO(out, err = 0);
         }
         case LCFG_PARAM: {
+                char *tmp;
                 /* llite has no obd */
                 if ((class_match_param(lustre_cfg_string(lcfg, 1),
                                        PARAM_LLITE, 0) == 0) &&
                     client_process_config) {
                         err = (*client_process_config)(lcfg);
                         GOTO(out, err);
+                } else if ((class_match_param(lustre_cfg_string(lcfg, 1),
+                                              PARAM_SYS, &tmp) == 0)) {
+                        /* Global param settings */
+                        err = class_set_global(tmp, lcfg->lcfg_num);
+                        /* Note that since LCFG_PARAM is LCFG_REQUIRED, new
+                           unknown globals would cause config to fail */
+                        if (err)
+                                CWARN("Ignoring unknown param %s\n", tmp);
+                        GOTO(out, 0);
                 }
+
                 /* Fall through */
                 break;
         }
@@ -977,7 +994,7 @@ int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
                 sval = strchr(key, '=');
                 if (!sval || (*(sval + 1) == 0)) {
                         CERROR("Can't parse param %s (missing '=')\n", key);
-                        /* rc = -EINVAL; continue parsing other params */
+                        /* rc = -EINVAL;        continue parsing other params */
                         continue;
                 }
                 keylen = sval - key;
@@ -1000,9 +1017,6 @@ int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
                                                                vallen, data);
                                         set_fs(oldfs);
                                 }
-                                if (rc < 0)
-                                        CERROR("writing proc entry %s err %d\n",
-                                               var->name, rc);
                                 break;
                         }
                         j++;
@@ -1014,8 +1028,12 @@ int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
                             RETURN(-ENOSYS);
                         CERROR("%s: unknown param %s\n",
                                (char *)lustre_cfg_string(lcfg, 0), key);
-                        /* rc = -EINVAL;       continue parsing other params */
+                        /* rc = -EINVAL;        continue parsing other params */
                         skip++;
+                } else if (rc < 0) {
+                        CERROR("writing proc entry %s err %d\n",
+                               var->name, rc);
+                        rc = 0;
                 } else {
                         LCONSOLE_INFO("%s.%.*s: set parameter %.*s=%s\n",
                                       lustre_cfg_string(lcfg, 0),
@@ -1126,7 +1144,7 @@ static int class_config_llog_handler(struct llog_handle * handle,
                 {
                         char *typename = lustre_cfg_string(lcfg, 1);
                         char *index = lustre_cfg_string(lcfg, 2);
-                        
+
                         if ((lcfg->lcfg_command == LCFG_ATTACH && typename &&
                              strcmp(typename, "mds") == 0)) {
                                 CWARN("For 1.8 interoperability, rename obd "
@@ -1406,18 +1424,18 @@ out:
  */
 
 static unsigned
-uuid_hash(lustre_hash_t *lh,  void *key, unsigned mask)
+uuid_hash(cfs_hash_t *hs,  void *key, unsigned mask)
 {
-        return lh_djb2_hash(((struct obd_uuid *)key)->uuid,
-                            sizeof(((struct obd_uuid *)key)->uuid), mask);
+        return cfs_hash_djb2_hash(((struct obd_uuid *)key)->uuid,
+                                  sizeof(((struct obd_uuid *)key)->uuid), mask);
 }
 
 static void *
-uuid_key(struct hlist_node *hnode)
+uuid_key(cfs_hlist_node_t *hnode)
 {
         struct obd_export *exp;
 
-        exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
+        exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
 
         RETURN(&exp->exp_client_uuid);
 }
@@ -1427,45 +1445,45 @@ uuid_key(struct hlist_node *hnode)
  *       state with this function
  */
 static int
-uuid_compare(void *key, struct hlist_node *hnode)
+uuid_compare(void *key, cfs_hlist_node_t *hnode)
 {
         struct obd_export *exp;
 
         LASSERT(key);
-        exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
+        exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
 
         RETURN(obd_uuid_equals((struct obd_uuid *)key,&exp->exp_client_uuid) &&
                !exp->exp_failed);
 }
 
 static void *
-uuid_export_get(struct hlist_node *hnode)
+uuid_export_get(cfs_hlist_node_t *hnode)
 {
         struct obd_export *exp;
 
-        exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
+        exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
         class_export_get(exp);
 
         RETURN(exp);
 }
 
 static void *
-uuid_export_put(struct hlist_node *hnode)
+uuid_export_put(cfs_hlist_node_t *hnode)
 {
         struct obd_export *exp;
 
-        exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
+        exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
         class_export_put(exp);
 
         RETURN(exp);
 }
 
-static lustre_hash_ops_t uuid_hash_ops = {
-        .lh_hash    = uuid_hash,
-        .lh_key     = uuid_key,
-        .lh_compare = uuid_compare,
-        .lh_get     = uuid_export_get,
-        .lh_put     = uuid_export_put,
+static cfs_hash_ops_t uuid_hash_ops = {
+        .hs_hash    = uuid_hash,
+        .hs_key     = uuid_key,
+        .hs_compare = uuid_compare,
+        .hs_get     = uuid_export_get,
+        .hs_put     = uuid_export_put,
 };
 
 
@@ -1474,17 +1492,17 @@ static lustre_hash_ops_t uuid_hash_ops = {
  */
 
 static unsigned
-nid_hash(lustre_hash_t *lh,  void *key, unsigned mask)
+nid_hash(cfs_hash_t *hs,  void *key, unsigned mask)
 {
-        return lh_djb2_hash(key, sizeof(lnet_nid_t), mask);
+        return cfs_hash_djb2_hash(key, sizeof(lnet_nid_t), mask);
 }
 
 static void *
-nid_key(struct hlist_node *hnode)
+nid_key(cfs_hlist_node_t *hnode)
 {
         struct obd_export *exp;
 
-        exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
+        exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
 
         RETURN(&exp->exp_connection->c_peer.nid);
 }
@@ -1494,45 +1512,45 @@ nid_key(struct hlist_node *hnode)
  *       state with this function
  */
 static int
-nid_compare(void *key, struct hlist_node *hnode)
+nid_compare(void *key, cfs_hlist_node_t *hnode)
 {
         struct obd_export *exp;
 
         LASSERT(key);
-        exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
+        exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
 
         RETURN(exp->exp_connection->c_peer.nid == *(lnet_nid_t *)key &&
                !exp->exp_failed);
 }
 
 static void *
-nid_export_get(struct hlist_node *hnode)
+nid_export_get(cfs_hlist_node_t *hnode)
 {
         struct obd_export *exp;
 
-        exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
+        exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
         class_export_get(exp);
 
         RETURN(exp);
 }
 
 static void *
-nid_export_put(struct hlist_node *hnode)
+nid_export_put(cfs_hlist_node_t *hnode)
 {
         struct obd_export *exp;
 
-        exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
+        exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
         class_export_put(exp);
 
         RETURN(exp);
 }
 
-static lustre_hash_ops_t nid_hash_ops = {
-        .lh_hash    = nid_hash,
-        .lh_key     = nid_key,
-        .lh_compare = nid_compare,
-        .lh_get     = nid_export_get,
-        .lh_put     = nid_export_put,
+static cfs_hash_ops_t nid_hash_ops = {
+        .hs_hash    = nid_hash,
+        .hs_key     = nid_key,
+        .hs_compare = nid_compare,
+        .hs_get     = nid_export_get,
+        .hs_put     = nid_export_put,
 };
 
 
@@ -1541,47 +1559,47 @@ static lustre_hash_ops_t nid_hash_ops = {
  */
 
 static void *
-nidstats_key(struct hlist_node *hnode)
+nidstats_key(cfs_hlist_node_t *hnode)
 {
         struct nid_stat *ns;
 
-        ns = hlist_entry(hnode, struct nid_stat, nid_hash);
+        ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash);
 
         RETURN(&ns->nid);
 }
 
 static int
-nidstats_compare(void *key, struct hlist_node *hnode)
+nidstats_compare(void *key, cfs_hlist_node_t *hnode)
 {
         RETURN(*(lnet_nid_t *)nidstats_key(hnode) == *(lnet_nid_t *)key);
 }
 
 static void *
-nidstats_get(struct hlist_node *hnode)
+nidstats_get(cfs_hlist_node_t *hnode)
 {
         struct nid_stat *ns;
 
-        ns = hlist_entry(hnode, struct nid_stat, nid_hash);
-        ns->nid_exp_ref_count++;
+        ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash);
+        nidstat_getref(ns);
 
         RETURN(ns);
 }
 
 static void *
-nidstats_put(struct hlist_node *hnode)
+nidstats_put(cfs_hlist_node_t *hnode)
 {
         struct nid_stat *ns;
 
-        ns = hlist_entry(hnode, struct nid_stat, nid_hash);
-        ns->nid_exp_ref_count--;
+        ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash);
+        nidstat_putref(ns);
 
         RETURN(ns);
 }
 
-static lustre_hash_ops_t nid_stat_hash_ops = {
-        .lh_hash    = nid_hash,
-        .lh_key     = nidstats_key,
-        .lh_compare = nidstats_compare,
-        .lh_get     = nidstats_get,
-        .lh_put     = nidstats_put,
+static cfs_hash_ops_t nid_stat_hash_ops = {
+        .hs_hash    = nid_hash,
+        .hs_key     = nidstats_key,
+        .hs_compare = nidstats_compare,
+        .hs_get     = nidstats_get,
+        .hs_put     = nidstats_put,
 };