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b=23289 skip big loop in mds_lov_dump_objids if D_INFO is not set
[fs/lustre-release.git] / lustre / mds / mds_lov.c
index a423c0b..40d477d 100644 (file)
@@ -26,7 +26,7 @@
  * 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.
  */
 /*
@@ -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");
@@ -100,7 +103,8 @@ int mds_lov_init_objids(struct obd_device *obd)
 
         CLASSERT(((MDS_LOV_ALLOC_SIZE % sizeof(obd_id)) == 0));
 
-        mds->mds_lov_page_dirty = ALLOCATE_BITMAP(MDS_LOV_OBJID_PAGES_COUNT);
+        mds->mds_lov_page_dirty =
+                CFS_ALLOCATE_BITMAP(MDS_LOV_OBJID_PAGES_COUNT);
         if (mds->mds_lov_page_dirty == NULL)
                 RETURN(-ENOMEM);
 
@@ -130,7 +134,7 @@ err_open:
 err_free:
         OBD_FREE(mds->mds_lov_page_array, size);
 err_free_bitmap:
-        FREE_BITMAP(mds->mds_lov_page_dirty);
+        CFS_FREE_BITMAP(mds->mds_lov_page_dirty);
 
         RETURN(rc);
 }
@@ -158,7 +162,7 @@ void mds_lov_destroy_objids(struct obd_device *obd)
                         CERROR("%s file won't close, rc=%d\n", LOV_OBJID, rc);
         }
 
-        FREE_BITMAP(mds->mds_lov_page_dirty);
+        CFS_FREE_BITMAP(mds->mds_lov_page_dirty);
         EXIT;
 }
 
@@ -216,6 +220,15 @@ 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;
@@ -242,7 +255,7 @@ int mds_lov_prepare_objids(struct obd_device *obd, struct lov_mds_md *lmm)
         }
 
 
-        mutex_down(&obd->obd_dev_sem);
+        cfs_mutex_down(&obd->obd_dev_sem);
         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)) {
@@ -250,17 +263,50 @@ int mds_lov_prepare_objids(struct obd_device *obd, struct lov_mds_md *lmm)
                         break;
                 }
         }
-        mutex_up(&obd->obd_dev_sem);
+        cfs_mutex_up(&obd->obd_dev_sem);
 
         RETURN(rc);
 }
 EXPORT_SYMBOL(mds_lov_prepare_objids);
 
+/*
+ * write llog orphan record about lost ost object,
+ * Special lsm is allocated with single stripe, caller should deallocated it
+ * after use
+ */
+static int mds_log_lost_precreated(struct obd_device *obd,
+                                   struct lov_stripe_md **lsmp, int *stripes,
+                                   obd_id id, obd_count count, int idx)
+{
+        struct lov_stripe_md *lsm = *lsmp;
+        int rc;
+        ENTRY;
+
+        if (*lsmp == NULL) {
+                rc = obd_alloc_memmd(obd->u.mds.mds_lov_exp, &lsm);
+                if (rc < 0)
+                        RETURN(rc);
+                /* need only one stripe, save old value */
+                *stripes = lsm->lsm_stripe_count;
+                lsm->lsm_stripe_count = 1;
+                *lsmp = lsm;
+        }
+
+        lsm->lsm_oinfo[0]->loi_id = 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);
+        RETURN(rc);
+}
+
 void mds_lov_update_objids(struct obd_device *obd, struct lov_mds_md *lmm)
 {
         struct mds_obd *mds = &obd->u.mds;
         int j;
         struct lov_ost_data_v1 *obj;
+        struct lov_stripe_md *lsm = NULL;
+        int stripes = 0;
         int count;
         ENTRY;
 
@@ -271,14 +317,15 @@ 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);
-                        obj = &(((struct lov_mds_md_v1*)lmm)->lmm_objects[0]);
+                        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);
-                        obj = &(((struct lov_mds_md_v3*)lmm)->lmm_objects[0]);
+                        obj = ((struct lov_mds_md_v3*)lmm)->lmm_objects;
                         break;
                 default:
-                        CERROR("Unknow lmm type %X !\n", le32_to_cpu(lmm->lmm_magic));
+                        CERROR("Unknow lmm type %X !\n",
+                               le32_to_cpu(lmm->lmm_magic));
                         return;
         }
 
@@ -294,10 +341,25 @@ void mds_lov_update_objids(struct obd_device *obd, struct lov_mds_md *lmm)
                 CDEBUG(D_INODE,"update last object for ost %u"
                        " - new "LPU64" old "LPU64"\n", i, id, data[idx]);
                 if (id > data[idx]) {
+                        int lost = id - data[idx] - 1;
+                        /* we might have lost precreated objects due to VBR */
+                        if (lost > 0 && obd->obd_recovering) {
+                                CDEBUG(D_HA, "Gap in objids is %u\n", lost);
+                                if (!obd->obd_version_recov)
+                                        CERROR("Unexpected gap in objids\n");
+                                /* lsm is allocated if NULL */
+                                mds_log_lost_precreated(obd, &lsm, &stripes,
+                                                        data[idx]+1, lost, i);
+                        }
                         data[idx] = id;
                         cfs_bitmap_set(mds->mds_lov_page_dirty, page);
                 }
         }
+        if (lsm) {
+                /* restore stripes number */
+                lsm->lsm_stripe_count = stripes;
+                obd_free_memmd(mds->mds_lov_exp, &lsm);
+        }
         EXIT;
         return;
 }
@@ -309,7 +371,7 @@ static int mds_lov_update_from_read(struct mds_obd *mds, obd_id *data,
         __u32 i;
         __u32 stripes;
 
-        for(i = 0; i < count; i++) {
+        for (i = 0; i < count; i++) {
                 if (data[i] == 0)
                         continue;
 
@@ -323,7 +385,8 @@ static int mds_lov_update_from_read(struct mds_obd *mds, obd_id *data,
         mds->mds_max_cookiesize = stripes * sizeof(struct llog_cookie);
 
         CDEBUG(D_CONFIG, "updated max_mdsize/max_cookiesize for %d stripes: "
-               "%d/%d\n", stripes, mds->mds_max_mdsize, mds->mds_max_cookiesize);
+               "%d/%d\n", stripes, mds->mds_max_mdsize,
+               mds->mds_max_cookiesize);
 
         EXIT;
         return 0;
@@ -344,7 +407,7 @@ 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;
@@ -358,23 +421,22 @@ 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);
@@ -397,11 +459,14 @@ 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);
 
+                if (!cfs_bitmap_test_and_clear(mds->mds_lov_page_dirty, i))
+                        continue;
+
                 /* check for particaly filled last page */
                 if (i == mds->mds_lov_objid_lastpage)
                         size = (mds->mds_lov_objid_lastidx+1) * sizeof(obd_id);
@@ -409,9 +474,10 @@ int mds_lov_write_objids(struct obd_device *obd)
                 CDEBUG(D_INFO, "write %lld - %u\n", off, size);
                 rc = fsfilt_write_record(obd, mds->mds_lov_objid_filp, data,
                                          size, &off, 0);
-                if (rc < 0)
+                if (rc < 0) {
+                        cfs_bitmap_set(mds->mds_lov_page_dirty, i);
                         break;
-                cfs_bitmap_clear(mds->mds_lov_page_dirty, i);
+                }
         }
         if (rc >= 0)
                 rc = 0;
@@ -424,24 +490,27 @@ static int mds_lov_get_objid(struct obd_device * obd,
                              obd_id idx)
 {
         struct mds_obd *mds = &obd->u.mds;
+        struct obd_export *lov_exp = mds->mds_lov_exp;
         unsigned int page;
         unsigned int off;
         obd_id *data;
+        __u32 size;
         int rc = 0;
         ENTRY;
 
         page = idx / OBJID_PER_PAGE();
         off = idx % OBJID_PER_PAGE();
         data = mds->mds_lov_page_array[page];
+
         if (data[off] < 2) {
                 /* We never read this lastid; ask the osc */
                 struct obd_id_info lastid;
-                __u32 size = sizeof(lastid);
 
+                size = sizeof(lastid);
                 lastid.idx = idx;
                 lastid.data = &data[off];
-                rc = obd_get_info(mds->mds_osc_exp, sizeof(KEY_LAST_ID),
-                                  KEY_LAST_ID, &size, &lastid, NULL);
+                rc = obd_get_info(lov_exp, sizeof(KEY_LAST_ID), KEY_LAST_ID,
+                                  &size, &lastid, NULL);
                 if (rc)
                         GOTO(out, rc);
 
@@ -460,7 +529,7 @@ out:
 int mds_lov_clear_orphans(struct mds_obd *mds, struct obd_uuid *ost_uuid)
 {
         int rc;
-        struct obdo oa;
+        struct obdo oa = { 0 };
         struct obd_trans_info oti = {0};
         struct lov_stripe_md  *empty_ea = NULL;
         ENTRY;
@@ -472,12 +541,12 @@ 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_osc_exp, &oa, &empty_ea, &oti);
+        rc = obd_create(mds->mds_lov_exp, &oa, &empty_ea, &oti);
 
         RETURN(rc);
 }
@@ -494,7 +563,7 @@ 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_osc_exp, sizeof(KEY_NEXT_ID),
+        rc = obd_set_info_async(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",
@@ -505,7 +574,7 @@ 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;
@@ -517,7 +586,7 @@ static int mds_lov_update_desc(struct obd_device *obd, int idx,
         if (!ld)
                 RETURN(-ENOMEM);
 
-        rc = obd_get_info(mds->mds_osc_exp, sizeof(KEY_LOVDESC), KEY_LOVDESC,
+        rc = obd_get_info(mds->mds_lov_exp, sizeof(KEY_LOVDESC), KEY_LOVDESC,
                           &valsize, ld, NULL);
         if (rc)
                 GOTO(out, rc);
@@ -528,25 +597,19 @@ 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);
 
-        mutex_down(&obd->obd_dev_sem);
+        cfs_mutex_down(&obd->obd_dev_sem);
         rc = mds_lov_update_max_ost(mds, idx);
-        mutex_up(&obd->obd_dev_sem);
+        cfs_mutex_up(&obd->obd_dev_sem);
         if (rc != 0)
                 GOTO(out, rc );
 
         /* If we added a target we have to reconnect the llogs */
         /* We only _need_ to do this at first add (idx), or the first time
            after recovery.  However, it should now be safe to call anytime. */
-        rc = llog_cat_initialize(obd, &obd->obd_olg, idx, uuid);
+        rc = obd_llog_init(obd, &obd->obd_olg, obd, &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);
-        }
 out:
         OBD_FREE(ld, sizeof(*ld));
         RETURN(rc);
@@ -555,20 +618,16 @@ 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,
@@ -615,60 +674,66 @@ int mds_lov_connect(struct obd_device *obd, char * lov_name)
         int rc;
         ENTRY;
 
-        if (IS_ERR(mds->mds_osc_obd))
-                RETURN(PTR_ERR(mds->mds_osc_obd));
+        if (IS_ERR(mds->mds_lov_obd))
+                RETURN(PTR_ERR(mds->mds_lov_obd));
 
-        if (mds->mds_osc_obd)
+        if (mds->mds_lov_obd)
                 RETURN(0);
 
-        mds->mds_osc_obd = class_name2obd(lov_name);
-        if (!mds->mds_osc_obd) {
+        mds->mds_lov_obd = class_name2obd(lov_name);
+        if (!mds->mds_lov_obd) {
                 CERROR("MDS cannot locate LOV %s\n", lov_name);
-                mds->mds_osc_obd = ERR_PTR(-ENOTCONN);
+                mds->mds_lov_obd = ERR_PTR(-ENOTCONN);
                 RETURN(-ENOTCONN);
         }
 
-        mutex_down(&obd->obd_dev_sem);
+        cfs_mutex_down(&obd->obd_dev_sem);
         rc = mds_lov_read_objids(obd);
-        mutex_up(&obd->obd_dev_sem);
+        cfs_mutex_up(&obd->obd_dev_sem);
         if (rc) {
                 CERROR("cannot read %s: rc = %d\n", "lov_objids", rc);
                 GOTO(err_exit, rc);
         }
 
-        rc = obd_register_observer(mds->mds_osc_obd, obd);
+        rc = obd_register_observer(mds->mds_lov_obd, obd);
         if (rc) {
                 CERROR("MDS cannot register as observer of LOV %s (%d)\n",
                        lov_name, rc);
                 GOTO(err_exit, rc);
         }
 
-        mds->mds_osc_obd->u.lov.lov_sp_me = LUSTRE_SP_MDT;
+        /* 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;
 
         OBD_ALLOC(data, sizeof(*data));
         if (data == NULL)
-                RETURN(-ENOMEM);
+                GOTO(err_exit, rc = -ENOMEM);
+
         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_CHANGE_QS | OBD_CONNECT_AT      |
-                                  OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN;
+                                  OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN   |
+                                  OBD_CONNECT_SOM | OBD_CONNECT_FULL20;
 #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);
         /* 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;
         /* NB: lov_connect() needs to fill in .ocd_index for each OST */
-        rc = obd_connect(NULL, &mds->mds_osc_exp, mds->mds_osc_obd, &obd->obd_uuid, data, NULL);
+        rc = obd_connect(NULL, &mds->mds_lov_exp, mds->mds_lov_obd, &obd->obd_uuid, data, NULL);
         OBD_FREE(data, sizeof(*data));
         if (rc) {
                 CERROR("MDS cannot connect to LOV %s (%d)\n", lov_name, rc);
-                mds->mds_osc_obd = ERR_PTR(rc);
+                mds->mds_lov_obd = ERR_PTR(rc);
                 RETURN(rc);
         }
 
@@ -684,8 +749,8 @@ int mds_lov_connect(struct obd_device *obd, char * lov_name)
         RETURN(rc);
 
 err_exit:
-        mds->mds_osc_exp = NULL;
-        mds->mds_osc_obd = ERR_PTR(rc);
+        mds->mds_lov_exp = NULL;
+        mds->mds_lov_obd = ERR_PTR(rc);
         RETURN(rc);
 }
 
@@ -695,16 +760,16 @@ int mds_lov_disconnect(struct obd_device *obd)
         int rc = 0;
         ENTRY;
 
-        if (!IS_ERR(mds->mds_osc_obd) && mds->mds_osc_exp != NULL) {
-                obd_register_observer(mds->mds_osc_obd, NULL);
+        if (!IS_ERR(mds->mds_lov_obd) && mds->mds_lov_exp != NULL) {
+                obd_register_observer(mds->mds_lov_obd, NULL);
 
                 /* The actual disconnect of the mds_lov will be called from
                  * class_disconnect_exports from mds_lov_clean. So we have to
                  * ensure that class_cleanup doesn't fail due to the extra ref
                  * we're holding now. The mechanism to do that already exists -
                  * the obd_force flag. We'll drop the final ref to the
-                 * mds_osc_exp in mds_cleanup. */
-                mds->mds_osc_obd->obd_force = 1;
+                 * mds_lov_exp in mds_cleanup. */
+                mds->mds_lov_obd->obd_force = 1;
         }
 
         RETURN(rc);
@@ -714,7 +779,6 @@ 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)
@@ -728,12 +792,13 @@ static int mds_propagate_capa_keys(struct mds_obd *mds, struct obd_uuid *uuid)
         if (!mds->mds_capa_keys)
                 RETURN(0);
 
+        OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_SYNC_CAPA_SL, 5);
         for (i = 0; i < 2; i++) {
                 key = &mds->mds_capa_keys[i];
                 DEBUG_CAPA_KEY(D_SEC, key, "propagate");
 
                 info.capa = key;
-                rc = obd_set_info_async(mds->mds_osc_exp, sizeof(KEY_CAPA_KEY),
+                rc = obd_set_info_async(mds->mds_lov_exp, sizeof(KEY_CAPA_KEY),
                                         KEY_CAPA_KEY, sizeof(info), &info, NULL);
                 if (rc) {
                         DEBUG_CAPA_KEY(D_ERROR, key,
@@ -758,7 +823,6 @@ 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;
@@ -771,20 +835,20 @@ static int __mds_lov_synchronize(void *data)
         uuid = &watched->u.cli.cl_target_uuid;
         LASSERT(uuid);
 
-        down_read(&mds->mds_notify_lock);
+        cfs_down_read(&mds->mds_notify_lock);
         if (obd->obd_stopping || obd->obd_fail)
                 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_osc_exp, sizeof(KEY_MDS_CONN),
+        rc = obd_set_info_async(mds->mds_lov_exp, sizeof(KEY_MDS_CONN),
                                 KEY_MDS_CONN, sizeof(mgi), &mgi, NULL);
         if (rc != 0)
                 GOTO(out, rc);
@@ -808,6 +872,7 @@ 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",
@@ -816,26 +881,26 @@ 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.
                  */
                 LASSERT(obd->obd_upcall.onu_upcall != NULL);
                 rc = obd->obd_upcall.onu_upcall(obd, NULL, OBD_NOTIFY_QUOTA,
-                                                obd->obd_upcall.onu_owner);
+                                                obd->obd_upcall.onu_owner,NULL);
         }
 #endif
         EXIT;
 out:
-        up_read(&mds->mds_notify_lock);
+        cfs_up_read(&mds->mds_notify_lock);
         if (rc) {
                 /* Deactivate it for safety */
                 CERROR("%s sync failed %d, deactivating\n", obd_uuid2str(uuid),
                        rc);
-                if (!obd->obd_stopping && mds->mds_osc_obd &&
-                    !mds->mds_osc_obd->obd_stopping && !watched->obd_stopping)
-                        obd_notify(mds->mds_osc_obd, watched,
+                if (!obd->obd_stopping && mds->mds_lov_obd &&
+                    !mds->mds_lov_obd->obd_stopping && !watched->obd_stopping)
+                        obd_notify(mds->mds_lov_obd, watched,
                                    OBD_NOTIFY_INACTIVE, NULL);
         }
 
@@ -849,7 +914,7 @@ int mds_lov_synchronize(void *data)
         char name[20];
 
         snprintf(name, sizeof(name), "ll_sync_%02u", mlsi->mlsi_index);
-        ptlrpc_daemonize(name);
+        cfs_daemonize_ctxt(name);
 
         RETURN(__mds_lov_synchronize(data));
 }
@@ -874,7 +939,6 @@ 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
@@ -910,13 +974,38 @@ 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:
+                CWARN("MDS %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 */
@@ -928,12 +1017,6 @@ 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,
@@ -942,7 +1025,7 @@ int mds_notify(struct obd_device *obd, struct obd_device *watched,
                    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);
         }