Whamcloud - gitweb
LU-1201 checksum: add libcfs crypto hash
[fs/lustre-release.git] / lustre / mds / mds_lov.c
index aa39938..c2b58cb 100644 (file)
@@ -1,6 +1,4 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
  * GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -58,6 +58,9 @@ static void mds_lov_dump_objids(const char *label, struct obd_device *obd)
         struct mds_obd *mds = &obd->u.mds;
         unsigned int i=0, j;
 
+        if ((libcfs_debug & D_INFO) == 0)
+                return;
+
         CDEBUG(D_INFO, "dump from %s\n", label);
         if (mds->mds_lov_page_dirty == NULL) {
                 CERROR("NULL bitmap!\n");
@@ -198,12 +201,14 @@ static int mds_lov_update_max_ost(struct mds_obd *mds, obd_id index)
         /* workaround - New target not in objids file; increase mdsize */
         /* ld_tgt_count is used as the max index everywhere, despite its name. */
         if (data[off] == 0) {
+                __u32 max_easize;
                 __u32 stripes;
 
+                max_easize = mds->mds_obt.obt_osd_properties.osd_max_ea_size;
                 data[off] = 1;
                 mds->mds_lov_objid_count++;
-                stripes = min_t(__u32, LOV_MAX_STRIPE_COUNT,
-                                mds->mds_lov_objid_count);
+                stripes = min(lov_mds_md_stripecnt(max_easize, LOV_MAGIC_V3),
+                              mds->mds_lov_objid_count);
 
                 mds->mds_max_mdsize = lov_mds_md_size(stripes, LOV_MAGIC_V3);
                 mds->mds_max_cookiesize = stripes * sizeof(struct llog_cookie);
@@ -217,10 +222,19 @@ static int mds_lov_update_max_ost(struct mds_obd *mds, obd_id index)
         return 0;
 }
 
+static int mds_lov_objinit(struct mds_obd *mds, __u32 index)
+{
+        __u32 page = index / OBJID_PER_PAGE();
+        __u32 off = index % OBJID_PER_PAGE();
+        obd_id *data =  mds->mds_lov_page_array[page];
+
+        return (data[off] > 0);
+}
+
 int mds_lov_prepare_objids(struct obd_device *obd, struct lov_mds_md *lmm)
 {
         struct lov_ost_data_v1 *data;
-        __u32 count;
+        __u16 count;
         int rc = 0;
         __u32 j;
 
@@ -230,11 +244,11 @@ int mds_lov_prepare_objids(struct obd_device *obd, struct lov_mds_md *lmm)
 
         switch (le32_to_cpu(lmm->lmm_magic)) {
                 case LOV_MAGIC_V1:
-                        count = le32_to_cpu(((struct lov_mds_md_v1*)lmm)->lmm_stripe_count);
+                        count = le16_to_cpu(((struct lov_mds_md_v1*)lmm)->lmm_stripe_count);
                         data = &(((struct lov_mds_md_v1*)lmm)->lmm_objects[0]);
                         break;
                 case LOV_MAGIC_V3:
-                        count = le32_to_cpu(((struct lov_mds_md_v3*)lmm)->lmm_stripe_count);
+                        count = le16_to_cpu(((struct lov_mds_md_v3*)lmm)->lmm_stripe_count);
                         data = &(((struct lov_mds_md_v3*)lmm)->lmm_objects[0]);
                         break;
                 default:
@@ -243,7 +257,7 @@ int mds_lov_prepare_objids(struct obd_device *obd, struct lov_mds_md *lmm)
         }
 
 
-        cfs_mutex_down(&obd->obd_dev_sem);
+        cfs_mutex_lock(&obd->obd_dev_mutex);
         for (j = 0; j < count; j++) {
                 __u32 i = le32_to_cpu(data[j].l_ost_idx);
                 if (mds_lov_update_max_ost(&obd->u.mds, i)) {
@@ -251,7 +265,7 @@ int mds_lov_prepare_objids(struct obd_device *obd, struct lov_mds_md *lmm)
                         break;
                 }
         }
-        cfs_mutex_up(&obd->obd_dev_sem);
+        cfs_mutex_unlock(&obd->obd_dev_mutex);
 
         RETURN(rc);
 }
@@ -263,7 +277,7 @@ EXPORT_SYMBOL(mds_lov_prepare_objids);
  * after use
  */
 static int mds_log_lost_precreated(struct obd_device *obd,
-                                   struct lov_stripe_md **lsmp, int *stripes,
+                                   struct lov_stripe_md **lsmp, __u16 *stripes,
                                    obd_id id, obd_count count, int idx)
 {
         struct lov_stripe_md *lsm = *lsmp;
@@ -281,7 +295,7 @@ static int mds_log_lost_precreated(struct obd_device *obd,
         }
 
         lsm->lsm_oinfo[0]->loi_id = id;
-        lsm->lsm_oinfo[0]->loi_gr = mdt_to_obd_objgrp(obd->u.mds.mds_id);
+        lsm->lsm_oinfo[0]->loi_seq = mdt_to_obd_objseq(obd->u.mds.mds_id);
         lsm->lsm_oinfo[0]->loi_ost_idx = idx;
 
         rc = mds_log_op_orphan(obd, lsm, count);
@@ -294,7 +308,7 @@ void mds_lov_update_objids(struct obd_device *obd, struct lov_mds_md *lmm)
         int j;
         struct lov_ost_data_v1 *obj;
         struct lov_stripe_md *lsm = NULL;
-        int stripes = 0;
+        __u16 stripes = 0;
         int count;
         ENTRY;
 
@@ -304,11 +318,11 @@ void mds_lov_update_objids(struct obd_device *obd, struct lov_mds_md *lmm)
 
         switch (le32_to_cpu(lmm->lmm_magic)) {
                 case LOV_MAGIC_V1:
-                        count = le32_to_cpu(((struct lov_mds_md_v1*)lmm)->lmm_stripe_count);
+                        count = le16_to_cpu(((struct lov_mds_md_v1*)lmm)->lmm_stripe_count);
                         obj = ((struct lov_mds_md_v1*)lmm)->lmm_objects;
                         break;
                 case LOV_MAGIC_V3:
-                        count = le32_to_cpu(((struct lov_mds_md_v3*)lmm)->lmm_stripe_count);
+                        count = le16_to_cpu(((struct lov_mds_md_v3*)lmm)->lmm_stripe_count);
                         obj = ((struct lov_mds_md_v3*)lmm)->lmm_objects;
                         break;
                 default:
@@ -356,8 +370,8 @@ EXPORT_SYMBOL(mds_lov_update_objids);
 static int mds_lov_update_from_read(struct mds_obd *mds, obd_id *data,
                                     __u32 count)
 {
-        __u32 i;
-        __u32 stripes;
+        __u32 max_easize = mds->mds_obt.obt_osd_properties.osd_max_ea_size;
+        __u32 i, stripes;
 
         for (i = 0; i < count; i++) {
                 if (data[i] == 0)
@@ -366,7 +380,7 @@ static int mds_lov_update_from_read(struct mds_obd *mds, obd_id *data,
                 mds->mds_lov_objid_count++;
         }
 
-        stripes = min_t(__u32, LOV_MAX_STRIPE_COUNT,
+        stripes = min(lov_mds_md_stripecnt(max_easize, LOV_MAGIC_V3),
                          mds->mds_lov_objid_count);
 
         mds->mds_max_mdsize = lov_mds_md_size(stripes, LOV_MAGIC_V3);
@@ -395,7 +409,7 @@ static int mds_lov_read_objids(struct obd_device *obd)
         if (size == 0)
                 RETURN(0);
 
-        page = (size / (OBJID_PER_PAGE() * sizeof(obd_id))) + 1;
+        page = (size + MDS_LOV_ALLOC_SIZE - 1) / MDS_LOV_ALLOC_SIZE;
         CDEBUG(D_INFO, "file size %lu pages %d\n", size, page);
         for (i = 0; i < page; i++) {
                 obd_id *data;
@@ -409,23 +423,22 @@ static int mds_lov_read_objids(struct obd_device *obd)
                 data = mds->mds_lov_page_array[i];
 
                 rc = fsfilt_read_record(obd, mds->mds_lov_objid_filp, data,
-                                        OBJID_PER_PAGE()*sizeof(obd_id), &off);
+                                        MDS_LOV_ALLOC_SIZE, &off);
                 if (rc < 0) {
                         CERROR("Error reading objids %d\n", rc);
                         GOTO(out, rc);
                 }
+                if (off == off_old) /* hole is read */
+                        off += MDS_LOV_ALLOC_SIZE;
 
-                count += (off - off_old) / sizeof(obd_id);
+                count = (off - off_old) / sizeof(obd_id);
                 if (mds_lov_update_from_read(mds, data, count)) {
                         CERROR("Can't update mds data\n");
                         GOTO(out, rc = -EIO);
                 }
-
-                if (off == off_old)
-                        break; /* eof */
         }
-        mds->mds_lov_objid_lastpage = i;
-        mds->mds_lov_objid_lastidx = count % OBJID_PER_PAGE();
+        mds->mds_lov_objid_lastpage = page - 1;
+        mds->mds_lov_objid_lastidx = count - 1;
 
         CDEBUG(D_INFO, "Read %u - %u %u objid\n", mds->mds_lov_objid_count,
                mds->mds_lov_objid_lastpage, mds->mds_lov_objid_lastidx);
@@ -448,7 +461,7 @@ int mds_lov_write_objids(struct obd_device *obd)
 
         cfs_foreach_bit(mds->mds_lov_page_dirty, i) {
                 obd_id *data =  mds->mds_lov_page_array[i];
-                unsigned int size = OBJID_PER_PAGE()*sizeof(obd_id);
+                unsigned int size = MDS_LOV_ALLOC_SIZE;
                 loff_t off = i * size;
 
                 LASSERT(data != NULL);
@@ -483,7 +496,6 @@ static int mds_lov_get_objid(struct obd_device * obd,
         unsigned int page;
         unsigned int off;
         obd_id *data;
-        __u64 connect_flags;
         __u32 size;
         int rc = 0;
         ENTRY;
@@ -492,22 +504,15 @@ static int mds_lov_get_objid(struct obd_device * obd,
         off = idx % OBJID_PER_PAGE();
         data = mds->mds_lov_page_array[page];
 
-        size = sizeof(__u64);
-        connect_flags = idx;
-        rc = obd_get_info(lov_exp, sizeof(KEY_CONNECT_FLAG), KEY_CONNECT_FLAG,
-                          &size, &connect_flags, NULL);
-        if (rc)
-                GOTO(out, rc);
-
-        if (data[off] < 2 || connect_flags & OBD_CONNECT_SKIP_ORPHAN) {
+        if (data[off] < 2) {
                 /* We never read this lastid; ask the osc */
                 struct obd_id_info lastid;
 
                 size = sizeof(lastid);
                 lastid.idx = idx;
                 lastid.data = &data[off];
-                rc = obd_get_info(lov_exp, sizeof(KEY_LAST_ID), KEY_LAST_ID,
-                                  &size, &lastid, NULL);
+                rc = obd_get_info(NULL, lov_exp, sizeof(KEY_LAST_ID),
+                                  KEY_LAST_ID, &size, &lastid, NULL);
                 if (rc)
                         GOTO(out, rc);
 
@@ -538,12 +543,12 @@ int mds_lov_clear_orphans(struct mds_obd *mds, struct obd_uuid *ost_uuid)
          * objects above this ID, they will be removed. */
         memset(&oa, 0, sizeof(oa));
         oa.o_flags = OBD_FL_DELORPHAN;
-        oa.o_gr = mdt_to_obd_objgrp(mds->mds_id);
+        oa.o_seq = mdt_to_obd_objseq(mds->mds_id);
         oa.o_valid = OBD_MD_FLFLAGS | OBD_MD_FLGROUP;
         if (ost_uuid != NULL)
                 oti.oti_ost_uuid = ost_uuid;
 
-        rc = obd_create(mds->mds_lov_exp, &oa, &empty_ea, &oti);
+        rc = obd_create(NULL, mds->mds_lov_exp, &oa, &empty_ea, &oti);
 
         RETURN(rc);
 }
@@ -560,7 +565,7 @@ static int mds_lov_set_one_nextid(struct obd_device *obd, __u32 idx, obd_id *id)
 
         info.idx = idx;
         info.data = id;
-        rc = obd_set_info_async(mds->mds_lov_exp, sizeof(KEY_NEXT_ID),
+        rc = obd_set_info_async(NULL, mds->mds_lov_exp, sizeof(KEY_NEXT_ID),
                                 KEY_NEXT_ID, sizeof(info), &info, NULL);
         if (rc)
                 CERROR ("%s: mds_lov_set_nextid failed (%d)\n",
@@ -571,7 +576,7 @@ static int mds_lov_set_one_nextid(struct obd_device *obd, __u32 idx, obd_id *id)
 
 /* Update the lov desc for a new size lov. */
 static int mds_lov_update_desc(struct obd_device *obd, int idx,
-                               struct obd_uuid *uuid, enum obd_notify_event ev)
+                               struct obd_uuid *uuid)
 {
         struct mds_obd *mds = &obd->u.mds;
         struct lov_desc *ld;
@@ -583,8 +588,8 @@ static int mds_lov_update_desc(struct obd_device *obd, int idx,
         if (!ld)
                 RETURN(-ENOMEM);
 
-        rc = obd_get_info(mds->mds_lov_exp, sizeof(KEY_LOVDESC), KEY_LOVDESC,
-                          &valsize, ld, NULL);
+        rc = obd_get_info(NULL, mds->mds_lov_exp, sizeof(KEY_LOVDESC),
+                          KEY_LOVDESC, &valsize, ld, NULL);
         if (rc)
                 GOTO(out, rc);
 
@@ -594,9 +599,9 @@ static int mds_lov_update_desc(struct obd_device *obd, int idx,
         CDEBUG(D_CONFIG, "updated lov_desc, tgt_count: %d - idx %d / uuid %s\n",
                mds->mds_lov_desc.ld_tgt_count, idx, uuid->uuid);
 
-        cfs_mutex_down(&obd->obd_dev_sem);
+        cfs_mutex_lock(&obd->obd_dev_mutex);
         rc = mds_lov_update_max_ost(mds, idx);
-        cfs_mutex_up(&obd->obd_dev_sem);
+        cfs_mutex_unlock(&obd->obd_dev_mutex);
         if (rc != 0)
                 GOTO(out, rc );
 
@@ -607,13 +612,6 @@ static int mds_lov_update_desc(struct obd_device *obd, int idx,
         if (rc)
                 GOTO(out, rc);
 
-        /*XXX this notifies the MDD until lov handling use old mds code */
-        if (obd->obd_upcall.onu_owner) {
-                 LASSERT(obd->obd_upcall.onu_upcall != NULL);
-                 rc = obd->obd_upcall.onu_upcall(obd, NULL, ev,
-                                                 obd->obd_upcall.onu_owner,
-                                                 &mds->mds_mount_count);
-        }
 out:
         OBD_FREE(ld, sizeof(*ld));
         RETURN(rc);
@@ -622,20 +620,16 @@ out:
 /* Inform MDS about new/updated target */
 static int mds_lov_update_mds(struct obd_device *obd,
                               struct obd_device *watched,
-                              __u32 idx, enum obd_notify_event ev)
+                              __u32 idx)
 {
         struct mds_obd *mds = &obd->u.mds;
         int rc = 0;
         int page;
         int off;
         obd_id *data;
-
         ENTRY;
 
-        /* Don't let anyone else mess with mds_lov_objids now */
-        rc = mds_lov_update_desc(obd, idx, &watched->u.cli.cl_target_uuid, ev);
-        if (rc)
-                GOTO(out, rc);
+        LASSERT(mds_lov_objinit(mds, idx));
 
         CDEBUG(D_CONFIG, "idx=%d, recov=%d/%d, cnt=%d\n",
                idx, obd->obd_recovering, obd->obd_async_recov,
@@ -695,9 +689,9 @@ int mds_lov_connect(struct obd_device *obd, char * lov_name)
                 RETURN(-ENOTCONN);
         }
 
-        cfs_mutex_down(&obd->obd_dev_sem);
+        cfs_mutex_lock(&obd->obd_dev_mutex);
         rc = mds_lov_read_objids(obd);
-        cfs_mutex_up(&obd->obd_dev_sem);
+        cfs_mutex_unlock(&obd->obd_dev_mutex);
         if (rc) {
                 CERROR("cannot read %s: rc = %d\n", "lov_objids", rc);
                 GOTO(err_exit, rc);
@@ -710,10 +704,9 @@ int mds_lov_connect(struct obd_device *obd, char * lov_name)
                 GOTO(err_exit, rc);
         }
 
-        /* try init too early */
-        rc = obd_llog_init(obd, &obd->obd_olg, obd, NULL);
-        if (rc)
-                GOTO(err_exit, rc);
+        /* ask lov to generate OBD_NOTIFY_CREATE events for already registered
+         * targets */
+        obd_notify(mds->mds_lov_obd, NULL, OBD_NOTIFY_CREATE, NULL);
 
         mds->mds_lov_obd->u.lov.lov_sp_me = LUSTRE_SP_MDT;
 
@@ -723,20 +716,21 @@ int mds_lov_connect(struct obd_device *obd, char * lov_name)
 
         data->ocd_connect_flags = OBD_CONNECT_VERSION   | OBD_CONNECT_INDEX   |
                                   OBD_CONNECT_REQPORTAL | OBD_CONNECT_QUOTA64 |
-                                  OBD_CONNECT_OSS_CAPA  | OBD_CONNECT_FID     |
-                                  OBD_CONNECT_BRW_SIZE  | OBD_CONNECT_CKSUM   |
+                                  OBD_CONNECT_OSS_CAPA  | OBD_CONNECT_FULL20  |
                                   OBD_CONNECT_CHANGE_QS | OBD_CONNECT_AT      |
                                   OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN   |
-                                  OBD_CONNECT_SOM;
+                                  OBD_CONNECT_SOM | OBD_CONNECT_MAX_EASIZE;
 #ifdef HAVE_LRU_RESIZE_SUPPORT
         data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
 #endif
         data->ocd_version = LUSTRE_VERSION_CODE;
-        data->ocd_group = mdt_to_obd_objgrp(mds->mds_id);
+        data->ocd_group = mdt_to_obd_objseq(mds->mds_id);
+        data->ocd_max_easize = mds->mds_obt.obt_osd_properties.osd_max_ea_size;
+
         /* send max bytes per rpc */
         data->ocd_brw_size = PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT;
         /* send the list of supported checksum types */
-        data->ocd_cksum_types = OBD_CKSUM_ALL;
+       data->ocd_cksum_types = cksum_types_supported_client();
         /* NB: lov_connect() needs to fill in .ocd_index for each OST */
         rc = obd_connect(NULL, &mds->mds_lov_exp, mds->mds_lov_obd, &obd->obd_uuid, data, NULL);
         OBD_FREE(data, sizeof(*data));
@@ -788,7 +782,6 @@ struct mds_lov_sync_info {
         struct obd_device    *mlsi_obd;     /* the lov device to sync */
         struct obd_device    *mlsi_watched; /* target osc */
         __u32                 mlsi_index;   /* index of target */
-        enum obd_notify_event mlsi_ev;      /* event type */
 };
 
 static int mds_propagate_capa_keys(struct mds_obd *mds, struct obd_uuid *uuid)
@@ -808,8 +801,9 @@ static int mds_propagate_capa_keys(struct mds_obd *mds, struct obd_uuid *uuid)
                 DEBUG_CAPA_KEY(D_SEC, key, "propagate");
 
                 info.capa = key;
-                rc = obd_set_info_async(mds->mds_lov_exp, sizeof(KEY_CAPA_KEY),
-                                        KEY_CAPA_KEY, sizeof(info), &info, NULL);
+                rc = obd_set_info_async(NULL, mds->mds_lov_exp,
+                                        sizeof(KEY_CAPA_KEY), KEY_CAPA_KEY,
+                                        sizeof(info), &info, NULL);
                 if (rc) {
                         DEBUG_CAPA_KEY(D_ERROR, key,
                                        "propagate failed (rc = %d) for", rc);
@@ -833,7 +827,6 @@ static int __mds_lov_synchronize(void *data)
         struct mds_obd *mds = &obd->u.mds;
         struct obd_uuid *uuid;
         __u32  idx = mlsi->mlsi_index;
-        enum obd_notify_event ev = mlsi->mlsi_ev;
         struct mds_group_info mgi;
         struct llog_ctxt *ctxt;
         int rc = 0;
@@ -851,15 +844,15 @@ static int __mds_lov_synchronize(void *data)
                 GOTO(out, rc = -ENODEV);
 
         OBD_RACE(OBD_FAIL_MDS_LOV_SYNC_RACE);
-        rc = mds_lov_update_mds(obd, watched, idx, ev);
+        rc = mds_lov_update_mds(obd, watched, idx);
         if (rc != 0) {
                 CERROR("%s failed at update_mds: %d\n", obd_uuid2str(uuid), rc);
                 GOTO(out, rc);
         }
-        mgi.group = mdt_to_obd_objgrp(mds->mds_id);
+        mgi.group = mdt_to_obd_objseq(mds->mds_id);
         mgi.uuid = uuid;
 
-        rc = obd_set_info_async(mds->mds_lov_exp, sizeof(KEY_MDS_CONN),
+        rc = obd_set_info_async(NULL, mds->mds_lov_exp, sizeof(KEY_MDS_CONN),
                                 KEY_MDS_CONN, sizeof(mgi), &mgi, NULL);
         if (rc != 0)
                 GOTO(out, rc);
@@ -883,6 +876,7 @@ static int __mds_lov_synchronize(void *data)
 
         LCONSOLE_INFO("MDS %s: %s now active, resetting orphans\n",
               obd->obd_name, obd_uuid2str(uuid));
+
         rc = mds_lov_clear_orphans(mds, uuid);
         if (rc != 0) {
                 CERROR("%s failed at mds_lov_clear_orphans: %d\n",
@@ -891,7 +885,7 @@ static int __mds_lov_synchronize(void *data)
         }
 
 #ifdef HAVE_QUOTA_SUPPORT
-        if (obd->obd_upcall.onu_owner) { 
+        if (obd->obd_upcall.onu_owner) {
                 /*
                  * This is a hack for mds_notify->mdd_notify. When the mds obd
                  * in mdd is removed, This hack should be removed.
@@ -903,7 +897,6 @@ static int __mds_lov_synchronize(void *data)
 #endif
         EXIT;
 out:
-        cfs_up_read(&mds->mds_notify_lock);
         if (rc) {
                 /* Deactivate it for safety */
                 CERROR("%s sync failed %d, deactivating\n", obd_uuid2str(uuid),
@@ -913,6 +906,7 @@ out:
                         obd_notify(mds->mds_lov_obd, watched,
                                    OBD_NOTIFY_INACTIVE, NULL);
         }
+       cfs_up_read(&mds->mds_notify_lock);
 
         class_decref(obd, "mds_lov_synchronize", obd);
         return rc;
@@ -949,7 +943,6 @@ int mds_lov_start_synchronize(struct obd_device *obd,
         mlsi->mlsi_obd = obd;
         mlsi->mlsi_watched = watched;
         mlsi->mlsi_index = *(__u32 *)data;
-        mlsi->mlsi_ev = ev;
 
         /* Although class_export_get(obd->obd_self_export) would lock
            the MDS in place, since it's only a self-export
@@ -963,8 +956,8 @@ int mds_lov_start_synchronize(struct obd_device *obd,
 
         if (ev != OBD_NOTIFY_SYNC) {
                 /* Synchronize in the background */
-                rc = cfs_kernel_thread(mds_lov_synchronize, mlsi,
-                                       CLONE_VM | CLONE_FILES);
+                rc = cfs_create_thread(mds_lov_synchronize, mlsi,
+                                       CFS_DAEMON_FLAGS);
                 if (rc < 0) {
                         CERROR("%s: error starting mds_lov_synchronize: %d\n",
                                obd->obd_name, rc);
@@ -985,13 +978,38 @@ int mds_lov_start_synchronize(struct obd_device *obd,
 int mds_notify(struct obd_device *obd, struct obd_device *watched,
                enum obd_notify_event ev, void *data)
 {
+        struct mds_obd *mds = &obd->u.mds;
         int rc = 0;
         ENTRY;
 
         CDEBUG(D_CONFIG, "notify %s ev=%d\n", watched->obd_name, ev);
 
+        if (strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME) != 0) {
+                CERROR("unexpected notification of %s %s!\n",
+                       watched->obd_type->typ_name, watched->obd_name);
+                RETURN(-EINVAL);
+        }
+
+        /*XXX this notifies the MDD until lov handling use old mds code
+         * must non block!
+         */
+        if (obd->obd_upcall.onu_owner) {
+                 LASSERT(obd->obd_upcall.onu_upcall != NULL);
+                 rc = obd->obd_upcall.onu_upcall(obd, NULL, ev,
+                                                 obd->obd_upcall.onu_owner,
+                                                 &mds->mds_obt.obt_mount_count);
+        }
+
         switch (ev) {
         /* We only handle these: */
+        case OBD_NOTIFY_CREATE:
+                CDEBUG(D_CONFIG, "%s: add target %s\n", obd->obd_name,
+                       obd_uuid2str(&watched->u.cli.cl_target_uuid));
+                /* We still have to fix the lov descriptor for ost's */
+                LASSERT(data);
+                rc = mds_lov_update_desc(obd, *(__u32 *)data,
+                                          &watched->u.cli.cl_target_uuid);
+                RETURN(rc);
         case OBD_NOTIFY_ACTIVE:
                 /* lov want one or more _active_ targets for work */
                 /* activate event should be pass lov idx as argument */
@@ -1003,21 +1021,16 @@ int mds_notify(struct obd_device *obd, struct obd_device *watched,
                 RETURN(0);
         }
 
-        if (strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME) != 0) {
-                CERROR("unexpected notification of %s %s!\n",
-                       watched->obd_type->typ_name, watched->obd_name);
-                RETURN(-EINVAL);
-        }
-
         if (obd->obd_recovering) {
-                CWARN("MDS %s: in recovery, not resetting orphans on %s\n",
-                      obd->obd_name,
-                      obd_uuid2str(&watched->u.cli.cl_target_uuid));
+                CDEBUG(D_CONFIG, "%s: Is in recovery, "
+                       "not resetting orphans on %s\n",
+                       obd->obd_name,
+                       obd_uuid2str(&watched->u.cli.cl_target_uuid));
                 /* We still have to fix the lov descriptor for ost's added
                    after the mdt in the config log.  They didn't make it into
                    mds_lov_connect. */
                 rc = mds_lov_update_desc(obd, *(__u32 *)data,
-                                         &watched->u.cli.cl_target_uuid, ev);
+                                         &watched->u.cli.cl_target_uuid);
         } else {
                 rc = mds_lov_start_synchronize(obd, watched, data, ev);
         }