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LU-2237 tests: new test for re-recreating last_rcvd
[fs/lustre-release.git] / lustre / osc / osc_request.c
index 24832ea..8988ebd 100644 (file)
@@ -662,6 +662,15 @@ static int osc_resource_get_unused(struct obd_export *exp, struct obdo *oa,
         int count;
         ENTRY;
 
+       /* Return, i.e. cancel nothing, only if ELC is supported (flag in
+        * export) but disabled through procfs (flag in NS).
+        *
+        * This distinguishes from a case when ELC is not supported originally,
+        * when we still want to cancel locks in advance and just cancel them
+        * locally, without sending any RPC. */
+       if (exp_connect_cancelset(exp) && !ns_connect_cancelset(ns))
+               RETURN(0);
+
         osc_build_res_name(oa->o_id, oa->o_seq, &res_id);
         res = ldlm_resource_get(ns, NULL, &res_id, 0, 0);
         if (res == NULL)
@@ -704,6 +713,31 @@ static int osc_can_send_destroy(struct client_obd *cli)
         return 0;
 }
 
+int osc_create(const struct lu_env *env, struct obd_export *exp,
+              struct obdo *oa, struct lov_stripe_md **ea,
+              struct obd_trans_info *oti)
+{
+       int rc = 0;
+       ENTRY;
+
+       LASSERT(oa);
+       LASSERT(ea);
+       LASSERT(oa->o_valid & OBD_MD_FLGROUP);
+
+       if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+           oa->o_flags == OBD_FL_RECREATE_OBJS) {
+               RETURN(osc_real_create(exp, oa, ea, oti));
+       }
+
+       if (!fid_seq_is_mdt(oa->o_seq))
+               RETURN(osc_real_create(exp, oa, ea, oti));
+
+       /* we should not get here anymore */
+       LBUG();
+
+       RETURN(rc);
+}
+
 /* Destroy requests can be async always on the client, and we don't even really
  * care about the return code since the client cannot do anything at all about
  * a destroy failure.
@@ -760,8 +794,11 @@ static int osc_destroy(const struct lu_env *env, struct obd_export *exp,
         osc_pack_capa(req, body, (struct obd_capa *)capa);
         ptlrpc_request_set_replen(req);
 
-        /* don't throttle destroy RPCs for the MDT */
-        if (!(cli->cl_import->imp_connect_flags_orig & OBD_CONNECT_MDS)) {
+       /* If osc_destory is for destroying the unlink orphan,
+        * sent from MDT to OST, which should not be blocked here,
+        * because the process might be triggered by ptlrpcd, and
+        * it is not good to block ptlrpcd thread (b=16006)*/
+       if (!(oa->o_flags & OBD_FL_DELORPHAN)) {
                 req->rq_interpret_reply = osc_destroy_interpret;
                 if (!osc_can_send_destroy(cli)) {
                         struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP,
@@ -1138,39 +1175,60 @@ static inline int can_merge_pages(struct brw_page *p1, struct brw_page *p2)
 }
 
 static obd_count osc_checksum_bulk(int nob, obd_count pg_count,
-                                   struct brw_page **pga, int opc,
-                                   cksum_type_t cksum_type)
-{
-        __u32 cksum;
-        int i = 0;
+                                  struct brw_page **pga, int opc,
+                                  cksum_type_t cksum_type)
+{
+       __u32                           cksum;
+       int                             i = 0;
+       struct cfs_crypto_hash_desc     *hdesc;
+       unsigned int                    bufsize;
+       int                             err;
+       unsigned char                   cfs_alg = cksum_obd2cfs(cksum_type);
+
+       LASSERT(pg_count > 0);
+
+       hdesc = cfs_crypto_hash_init(cfs_alg, NULL, 0);
+       if (IS_ERR(hdesc)) {
+               CERROR("Unable to initialize checksum hash %s\n",
+                      cfs_crypto_hash_name(cfs_alg));
+               return PTR_ERR(hdesc);
+       }
 
-        LASSERT (pg_count > 0);
-        cksum = init_checksum(cksum_type);
-        while (nob > 0 && pg_count > 0) {
-                unsigned char *ptr = cfs_kmap(pga[i]->pg);
-                int off = pga[i]->off & ~CFS_PAGE_MASK;
-                int count = pga[i]->count > nob ? nob : pga[i]->count;
-
-                /* corrupt the data before we compute the checksum, to
-                 * simulate an OST->client data error */
-                if (i == 0 && opc == OST_READ &&
-                    OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_RECEIVE))
-                        memcpy(ptr + off, "bad1", min(4, nob));
-                cksum = compute_checksum(cksum, ptr + off, count, cksum_type);
-                cfs_kunmap(pga[i]->pg);
-                LL_CDEBUG_PAGE(D_PAGE, pga[i]->pg, "off %d checksum %x\n",
-                               off, cksum);
+       while (nob > 0 && pg_count > 0) {
+               int count = pga[i]->count > nob ? nob : pga[i]->count;
+
+               /* corrupt the data before we compute the checksum, to
+                * simulate an OST->client data error */
+               if (i == 0 && opc == OST_READ &&
+                   OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_RECEIVE)) {
+                       unsigned char *ptr = cfs_kmap(pga[i]->pg);
+                       int off = pga[i]->off & ~CFS_PAGE_MASK;
+                       memcpy(ptr + off, "bad1", min(4, nob));
+                       cfs_kunmap(pga[i]->pg);
+               }
+               cfs_crypto_hash_update_page(hdesc, pga[i]->pg,
+                                 pga[i]->off & ~CFS_PAGE_MASK,
+                                 count);
+               LL_CDEBUG_PAGE(D_PAGE, pga[i]->pg, "off %d checksum %x\n",
+                              (int)(pga[i]->off & ~CFS_PAGE_MASK), cksum);
+
+               nob -= pga[i]->count;
+               pg_count--;
+               i++;
+       }
 
-                nob -= pga[i]->count;
-                pg_count--;
-                i++;
-        }
-        /* For sending we only compute the wrong checksum instead
-         * of corrupting the data so it is still correct on a redo */
-        if (opc == OST_WRITE && OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_SEND))
-                cksum++;
+       bufsize = 4;
+       err = cfs_crypto_hash_final(hdesc, (unsigned char *)&cksum, &bufsize);
+
+       if (err)
+               cfs_crypto_hash_final(hdesc, NULL, NULL);
+
+       /* For sending we only compute the wrong checksum instead
+        * of corrupting the data so it is still correct on a redo */
+       if (opc == OST_WRITE && OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_SEND))
+               cksum++;
 
-        return fini_checksum(cksum, cksum_type);
+       return cksum;
 }
 
 static int osc_brw_prep_request(int cmd, struct client_obd *cli,struct obdo *oa,
@@ -1227,6 +1285,9 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli,struct obdo *oa,
         }
         req->rq_request_portal = OST_IO_PORTAL; /* bug 7198 */
         ptlrpc_at_set_req_timeout(req);
+       /* ask ptlrpc not to resend on EINPROGRESS since BRWs have their own
+        * retry logic */
+       req->rq_no_retry_einprogress = 1;
 
         if (opc == OST_WRITE)
                 desc = ptlrpc_prep_bulk_imp(req, page_count,
@@ -1279,7 +1340,7 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli,struct obdo *oa,
                 LASSERT((pga[0]->flag & OBD_BRW_SRVLOCK) ==
                         (pg->flag & OBD_BRW_SRVLOCK));
 
-                ptlrpc_prep_bulk_page(desc, pg->pg, poff, pg->count);
+               ptlrpc_prep_bulk_page_pin(desc, pg->pg, poff, pg->count);
                 requested_nob += pg->count;
 
                 if (i > 0 && can_merge_pages(pg_prev, pg)) {
@@ -1650,16 +1711,16 @@ out:
         RETURN (rc);
 }
 
-int osc_brw_redo_request(struct ptlrpc_request *request,
-                         struct osc_brw_async_args *aa)
+static int osc_brw_redo_request(struct ptlrpc_request *request,
+                               struct osc_brw_async_args *aa, int rc)
 {
         struct ptlrpc_request *new_req;
         struct osc_brw_async_args *new_aa;
         struct osc_async_page *oap;
-        int rc = 0;
         ENTRY;
 
-        DEBUG_REQ(D_ERROR, request, "redo for recoverable error");
+       DEBUG_REQ(rc == -EINPROGRESS ? D_RPCTRACE : D_ERROR, request,
+                 "redo for recoverable error %d", rc);
 
         rc = osc_brw_prep_request(lustre_msg_get_opc(request->rq_reqmsg) ==
                                         OST_WRITE ? OBD_BRW_WRITE :OBD_BRW_READ,
@@ -1686,7 +1747,12 @@ int osc_brw_redo_request(struct ptlrpc_request *request,
         aa->aa_resends++;
         new_req->rq_interpret_reply = request->rq_interpret_reply;
         new_req->rq_async_args = request->rq_async_args;
-        new_req->rq_sent = cfs_time_current_sec() + aa->aa_resends;
+       /* cap resend delay to the current request timeout, this is similar to
+        * what ptlrpc does (see after_reply()) */
+       if (aa->aa_resends > new_req->rq_timeout)
+               new_req->rq_sent = cfs_time_current_sec() + new_req->rq_timeout;
+       else
+               new_req->rq_sent = cfs_time_current_sec() + aa->aa_resends;
         new_req->rq_generation_set = 1;
         new_req->rq_import_generation = request->rq_import_generation;
 
@@ -1891,7 +1957,7 @@ static int brw_interpret(const struct lu_env *env,
                                aa->aa_oa->o_id, aa->aa_oa->o_seq, rc);
                 } else if (rc == -EINPROGRESS ||
                     client_should_resend(aa->aa_resends, aa->aa_cli)) {
-                        rc = osc_brw_redo_request(req, aa);
+                        rc = osc_brw_redo_request(req, aa, rc);
                 } else {
                         CERROR("%s: too many resent retries for object: "
                                ""LPU64":"LPU64", rc = %d.\n",
@@ -2192,17 +2258,17 @@ static int osc_set_lock_data_with_check(struct ldlm_lock *lock,
         LASSERT(lock->l_glimpse_ast == einfo->ei_cb_gl);
 
         lock_res_and_lock(lock);
-        cfs_spin_lock(&osc_ast_guard);
+       spin_lock(&osc_ast_guard);
 
-        if (lock->l_ast_data == NULL)
-                lock->l_ast_data = data;
-        if (lock->l_ast_data == data)
-                set = 1;
+       if (lock->l_ast_data == NULL)
+               lock->l_ast_data = data;
+       if (lock->l_ast_data == data)
+               set = 1;
 
-        cfs_spin_unlock(&osc_ast_guard);
-        unlock_res_and_lock(lock);
+       spin_unlock(&osc_ast_guard);
+       unlock_res_and_lock(lock);
 
-        return set;
+       return set;
 }
 
 static int osc_set_data_with_check(struct lustre_handle *lockh,
@@ -2253,7 +2319,7 @@ static int osc_find_cbdata(struct obd_export *exp, struct lov_stripe_md *lsm,
 
 static int osc_enqueue_fini(struct ptlrpc_request *req, struct ost_lvb *lvb,
                             obd_enqueue_update_f upcall, void *cookie,
-                            int *flags, int agl, int rc)
+                           __u64 *flags, int agl, int rc)
 {
         int intent = *flags & LDLM_FL_HAS_INTENT;
         ENTRY;
@@ -2292,7 +2358,7 @@ static int osc_enqueue_interpret(const struct lu_env *env,
         __u32 mode;
         struct ost_lvb *lvb;
         __u32 lvb_len;
-        int *flags = aa->oa_flags;
+       __u64 *flags = aa->oa_flags;
 
         /* Make a local copy of a lock handle and a mode, because aa->oa_*
          * might be freed anytime after lock upcall has been called. */
@@ -2400,7 +2466,7 @@ struct ptlrpc_request_set *PTLRPCD_SET = (void *)1;
  * is excluded from the cluster -- such scenarious make the life difficult, so
  * release locks just after they are obtained. */
 int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
-                     int *flags, ldlm_policy_data_t *policy,
+                    __u64 *flags, ldlm_policy_data_t *policy,
                      struct ost_lvb *lvb, int kms_valid,
                      obd_enqueue_update_f upcall, void *cookie,
                      struct ldlm_enqueue_info *einfo,
@@ -2468,7 +2534,10 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
                                  * are explained in lov_enqueue() */
                         }
 
-                        /* We already have a lock, and it's referenced */
+                       /* We already have a lock, and it's referenced.
+                        *
+                        * At this point, the cl_lock::cll_state is CLS_QUEUING,
+                        * AGL upcall may change it to CLS_HELD directly. */
                         (*upcall)(cookie, ELDLM_OK);
 
                         if (einfo->ei_mode != mode)
@@ -2507,7 +2576,7 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
         *flags &= ~LDLM_FL_BLOCK_GRANTED;
 
         rc = ldlm_cli_enqueue(exp, &req, einfo, res_id, policy, flags, lvb,
-                              sizeof(*lvb), lockh, async);
+                             sizeof(*lvb), LVB_T_OST, lockh, async);
         if (rqset) {
                 if (!rc) {
                         struct osc_enqueue_args *aa;
@@ -2643,9 +2712,7 @@ static int osc_statfs_interpret(const struct lu_env *env,
                                 struct ptlrpc_request *req,
                                 struct osc_async_args *aa, int rc)
 {
-        struct client_obd *cli = &req->rq_import->imp_obd->u.cli;
         struct obd_statfs *msfs;
-        __u64 used;
         ENTRY;
 
         if (rc == -EBADR)
@@ -2668,51 +2735,6 @@ static int osc_statfs_interpret(const struct lu_env *env,
                 GOTO(out, rc = -EPROTO);
         }
 
-        /* Reinitialize the RDONLY and DEGRADED flags at the client
-         * on each statfs, so they don't stay set permanently. */
-        cfs_spin_lock(&cli->cl_oscc.oscc_lock);
-
-        if (unlikely(msfs->os_state & OS_STATE_DEGRADED))
-                cli->cl_oscc.oscc_flags |= OSCC_FLAG_DEGRADED;
-        else if (unlikely(cli->cl_oscc.oscc_flags & OSCC_FLAG_DEGRADED))
-                cli->cl_oscc.oscc_flags &= ~OSCC_FLAG_DEGRADED;
-
-        if (unlikely(msfs->os_state & OS_STATE_READONLY))
-                cli->cl_oscc.oscc_flags |= OSCC_FLAG_RDONLY;
-        else if (unlikely(cli->cl_oscc.oscc_flags & OSCC_FLAG_RDONLY))
-                cli->cl_oscc.oscc_flags &= ~OSCC_FLAG_RDONLY;
-
-        /* Add a bit of hysteresis so this flag isn't continually flapping,
-         * and ensure that new files don't get extremely fragmented due to
-         * only a small amount of available space in the filesystem.
-         * We want to set the NOSPC flag when there is less than ~0.1% free
-         * and clear it when there is at least ~0.2% free space, so:
-         *                   avail < ~0.1% max          max = avail + used
-         *            1025 * avail < avail + used       used = blocks - free
-         *            1024 * avail < used
-         *            1024 * avail < blocks - free
-         *                   avail < ((blocks - free) >> 10)
-         *
-         * On very large disk, say 16TB 0.1% will be 16 GB. We don't want to
-         * lose that amount of space so in those cases we report no space left
-         * if their is less than 1 GB left.                             */
-        used = min_t(__u64,(msfs->os_blocks - msfs->os_bfree) >> 10, 1 << 30);
-        if (unlikely(((cli->cl_oscc.oscc_flags & OSCC_FLAG_NOSPC) == 0) &&
-                     ((msfs->os_ffree < 32) || (msfs->os_bavail < used))))
-                cli->cl_oscc.oscc_flags |= OSCC_FLAG_NOSPC;
-        else if (unlikely(((cli->cl_oscc.oscc_flags & OSCC_FLAG_NOSPC) != 0) &&
-                          (msfs->os_ffree > 64) &&
-                          (msfs->os_bavail > (used << 1)))) {
-                cli->cl_oscc.oscc_flags &= ~(OSCC_FLAG_NOSPC |
-                                             OSCC_FLAG_NOSPC_BLK);
-        }
-
-        if (unlikely(((cli->cl_oscc.oscc_flags & OSCC_FLAG_NOSPC) != 0) &&
-                     (msfs->os_bavail < used)))
-                cli->cl_oscc.oscc_flags |= OSCC_FLAG_NOSPC_BLK;
-
-        cfs_spin_unlock(&cli->cl_oscc.oscc_lock);
-
         *aa->aa_oi->oi_osfs = *msfs;
 out:
         rc = aa->aa_oi->oi_cb_up(aa->aa_oi, rc);
@@ -2775,10 +2797,10 @@ static int osc_statfs(const struct lu_env *env, struct obd_export *exp,
 
         /*Since the request might also come from lprocfs, so we need
          *sync this with client_disconnect_export Bug15684*/
-        cfs_down_read(&obd->u.cli.cl_sem);
+       down_read(&obd->u.cli.cl_sem);
         if (obd->u.cli.cl_import)
                 imp = class_import_get(obd->u.cli.cl_import);
-        cfs_up_read(&obd->u.cli.cl_sem);
+       up_read(&obd->u.cli.cl_sem);
         if (!imp)
                 RETURN(-ENODEV);
 
@@ -3074,40 +3096,6 @@ static int osc_get_info(const struct lu_env *env, struct obd_export *exp,
         RETURN(-EINVAL);
 }
 
-static int osc_setinfo_mds_connect_import(struct obd_import *imp)
-{
-        struct llog_ctxt *ctxt;
-        int rc = 0;
-        ENTRY;
-
-        ctxt = llog_get_context(imp->imp_obd, LLOG_MDS_OST_ORIG_CTXT);
-        if (ctxt) {
-                rc = llog_initiator_connect(ctxt);
-                llog_ctxt_put(ctxt);
-        } else {
-                /* XXX return an error? skip setting below flags? */
-        }
-
-        cfs_spin_lock(&imp->imp_lock);
-        imp->imp_server_timeout = 1;
-        imp->imp_pingable = 1;
-        cfs_spin_unlock(&imp->imp_lock);
-        CDEBUG(D_RPCTRACE, "pinging OST %s\n", obd2cli_tgt(imp->imp_obd));
-
-        RETURN(rc);
-}
-
-static int osc_setinfo_mds_conn_interpret(const struct lu_env *env,
-                                          struct ptlrpc_request *req,
-                                          void *aa, int rc)
-{
-        ENTRY;
-        if (rc != 0)
-                RETURN(rc);
-
-        RETURN(osc_setinfo_mds_connect_import(req->rq_import));
-}
-
 static int osc_set_info_async(const struct lu_env *env, struct obd_export *exp,
                               obd_count keylen, void *key, obd_count vallen,
                               void *val, struct ptlrpc_request_set *set)
@@ -3121,32 +3109,6 @@ static int osc_set_info_async(const struct lu_env *env, struct obd_export *exp,
 
         OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_SHUTDOWN, 10);
 
-        if (KEY_IS(KEY_NEXT_ID)) {
-                obd_id new_val;
-                struct osc_creator *oscc = &obd->u.cli.cl_oscc;
-
-                if (vallen != sizeof(obd_id))
-                        RETURN(-ERANGE);
-                if (val == NULL)
-                        RETURN(-EINVAL);
-
-                if (vallen != sizeof(obd_id))
-                        RETURN(-EINVAL);
-
-                /* avoid race between allocate new object and set next id
-                 * from ll_sync thread */
-                cfs_spin_lock(&oscc->oscc_lock);
-                new_val = *((obd_id*)val) + 1;
-                if (new_val > oscc->oscc_next_id)
-                        oscc->oscc_next_id = new_val;
-                cfs_spin_unlock(&oscc->oscc_lock);
-                CDEBUG(D_HA, "%s: set oscc_next_id = "LPU64"\n",
-                       exp->exp_obd->obd_name,
-                       obd->u.cli.cl_oscc.oscc_next_id);
-
-                RETURN(0);
-        }
-
         if (KEY_IS(KEY_CHECKSUM)) {
                 if (vallen != sizeof(int))
                         RETURN(-EINVAL);
@@ -3164,6 +3126,33 @@ static int osc_set_info_async(const struct lu_env *env, struct obd_export *exp,
                 RETURN(0);
         }
 
+       if (KEY_IS(KEY_CACHE_SET)) {
+               struct client_obd *cli = &obd->u.cli;
+
+               LASSERT(cli->cl_cache == NULL); /* only once */
+               cli->cl_cache = (struct cl_client_cache *)val;
+               cfs_atomic_inc(&cli->cl_cache->ccc_users);
+               cli->cl_lru_left = &cli->cl_cache->ccc_lru_left;
+
+               /* add this osc into entity list */
+               LASSERT(cfs_list_empty(&cli->cl_lru_osc));
+               spin_lock(&cli->cl_cache->ccc_lru_lock);
+               cfs_list_add(&cli->cl_lru_osc, &cli->cl_cache->ccc_lru);
+               spin_unlock(&cli->cl_cache->ccc_lru_lock);
+
+               RETURN(0);
+       }
+
+       if (KEY_IS(KEY_CACHE_LRU_SHRINK)) {
+               struct client_obd *cli = &obd->u.cli;
+               int nr = cfs_atomic_read(&cli->cl_lru_in_list) >> 1;
+               int target = *(int *)val;
+
+               nr = osc_lru_shrink(cli, min(nr, target));
+               *(int *)val -= nr;
+               RETURN(0);
+       }
+
         if (!set && !KEY_IS(KEY_GRANT_SHRINK))
                 RETURN(-EINVAL);
 
@@ -3174,38 +3163,31 @@ static int osc_set_info_async(const struct lu_env *env, struct obd_export *exp,
            Even if something bad goes through, we'd get a -EINVAL from OST
            anyway. */
 
-        if (KEY_IS(KEY_GRANT_SHRINK))
-                req = ptlrpc_request_alloc(imp, &RQF_OST_SET_GRANT_INFO);
-        else
-                req = ptlrpc_request_alloc(imp, &RQF_OBD_SET_INFO);
-
-        if (req == NULL)
-                RETURN(-ENOMEM);
-
-        req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_KEY,
-                             RCL_CLIENT, keylen);
-        req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_VAL,
-                             RCL_CLIENT, vallen);
-        rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_SET_INFO);
-        if (rc) {
-                ptlrpc_request_free(req);
-                RETURN(rc);
-        }
+       req = ptlrpc_request_alloc(imp, KEY_IS(KEY_GRANT_SHRINK) ?
+                                               &RQF_OST_SET_GRANT_INFO :
+                                               &RQF_OBD_SET_INFO);
+       if (req == NULL)
+               RETURN(-ENOMEM);
+
+       req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_KEY,
+                            RCL_CLIENT, keylen);
+       if (!KEY_IS(KEY_GRANT_SHRINK))
+               req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_VAL,
+                                    RCL_CLIENT, vallen);
+       rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_SET_INFO);
+       if (rc) {
+               ptlrpc_request_free(req);
+               RETURN(rc);
+       }
 
-        tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
-        memcpy(tmp, key, keylen);
-        tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_VAL);
+       tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
+       memcpy(tmp, key, keylen);
+       tmp = req_capsule_client_get(&req->rq_pill, KEY_IS(KEY_GRANT_SHRINK) ?
+                                                       &RMF_OST_BODY :
+                                                       &RMF_SETINFO_VAL);
         memcpy(tmp, val, vallen);
 
-        if (KEY_IS(KEY_MDS_CONN)) {
-                struct osc_creator *oscc = &obd->u.cli.cl_oscc;
-
-                oscc->oscc_oa.o_seq = (*(__u32 *)val);
-                oscc->oscc_oa.o_valid |= OBD_MD_FLGROUP;
-                LASSERT_SEQ_IS_MDT(oscc->oscc_oa.o_seq);
-                req->rq_no_delay = req->rq_no_resend = 1;
-                req->rq_interpret_reply = osc_setinfo_mds_conn_interpret;
-        } else if (KEY_IS(KEY_GRANT_SHRINK)) {
+       if (KEY_IS(KEY_GRANT_SHRINK)) {
                 struct osc_grant_args *aa;
                 struct obdo *oa;
 
@@ -3233,101 +3215,31 @@ static int osc_set_info_async(const struct lu_env *env, struct obd_export *exp,
 }
 
 
-static struct llog_operations osc_size_repl_logops = {
-        lop_cancel: llog_obd_repl_cancel
-};
-
-static struct llog_operations osc_mds_ost_orig_logops;
-
-static int __osc_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
-                           struct obd_device *tgt, struct llog_catid *catid)
-{
-        int rc;
-        ENTRY;
-
-        rc = llog_setup(obd, &obd->obd_olg, LLOG_MDS_OST_ORIG_CTXT, tgt, 1,
-                        &catid->lci_logid, &osc_mds_ost_orig_logops);
-        if (rc) {
-                CERROR("failed LLOG_MDS_OST_ORIG_CTXT\n");
-                GOTO(out, rc);
-        }
-
-        rc = llog_setup(obd, &obd->obd_olg, LLOG_SIZE_REPL_CTXT, tgt, 1,
-                        NULL, &osc_size_repl_logops);
-        if (rc) {
-                struct llog_ctxt *ctxt =
-                        llog_get_context(obd, LLOG_MDS_OST_ORIG_CTXT);
-                if (ctxt)
-                        llog_cleanup(ctxt);
-                CERROR("failed LLOG_SIZE_REPL_CTXT\n");
-        }
-        GOTO(out, rc);
-out:
-        if (rc) {
-                CERROR("osc '%s' tgt '%s' catid %p rc=%d\n",
-                       obd->obd_name, tgt->obd_name, catid, rc);
-                CERROR("logid "LPX64":0x%x\n",
-                       catid->lci_logid.lgl_oid, catid->lci_logid.lgl_ogen);
-        }
-        return rc;
-}
-
 static int osc_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
                          struct obd_device *disk_obd, int *index)
 {
-        struct llog_catid catid;
-        static char name[32] = CATLIST;
-        int rc;
-        ENTRY;
-
-        LASSERT(olg == &obd->obd_olg);
-
-        cfs_mutex_lock(&olg->olg_cat_processing);
-        rc = llog_get_cat_list(disk_obd, name, *index, 1, &catid);
-        if (rc) {
-                CERROR("rc: %d\n", rc);
-                GOTO(out, rc);
-        }
-
-        CDEBUG(D_INFO, "%s: Init llog for %d - catid "LPX64"/"LPX64":%x\n",
-               obd->obd_name, *index, catid.lci_logid.lgl_oid,
-               catid.lci_logid.lgl_oseq, catid.lci_logid.lgl_ogen);
-
-        rc = __osc_llog_init(obd, olg, disk_obd, &catid);
-        if (rc) {
-                CERROR("rc: %d\n", rc);
-                GOTO(out, rc);
-        }
-
-        rc = llog_put_cat_list(disk_obd, name, *index, 1, &catid);
-        if (rc) {
-                CERROR("rc: %d\n", rc);
-                GOTO(out, rc);
-        }
-
- out:
-        cfs_mutex_unlock(&olg->olg_cat_processing);
-
-        return rc;
+       /* this code is not supposed to be used with LOD/OSP
+        * to be removed soon */
+       LBUG();
+       return 0;
 }
 
 static int osc_llog_finish(struct obd_device *obd, int count)
 {
-        struct llog_ctxt *ctxt;
-        int rc = 0, rc2 = 0;
-        ENTRY;
+       struct llog_ctxt *ctxt;
 
-        ctxt = llog_get_context(obd, LLOG_MDS_OST_ORIG_CTXT);
-        if (ctxt)
-                rc = llog_cleanup(ctxt);
+       ENTRY;
 
-        ctxt = llog_get_context(obd, LLOG_SIZE_REPL_CTXT);
-        if (ctxt)
-                rc2 = llog_cleanup(ctxt);
-        if (!rc)
-                rc = rc2;
+       ctxt = llog_get_context(obd, LLOG_MDS_OST_ORIG_CTXT);
+       if (ctxt) {
+               llog_cat_close(NULL, ctxt->loc_handle);
+               llog_cleanup(NULL, ctxt);
+       }
 
-        RETURN(rc);
+       ctxt = llog_get_context(obd, LLOG_SIZE_REPL_CTXT);
+       if (ctxt)
+               llog_cleanup(NULL, ctxt);
+       RETURN(0);
 }
 
 static int osc_reconnect(const struct lu_env *env,
@@ -3410,14 +3322,6 @@ static int osc_import_event(struct obd_device *obd,
 
         switch (event) {
         case IMP_EVENT_DISCON: {
-                /* Only do this on the MDS OSC's */
-                if (imp->imp_server_timeout) {
-                        struct osc_creator *oscc = &obd->u.cli.cl_oscc;
-
-                        cfs_spin_lock(&oscc->oscc_lock);
-                        oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
-                        cfs_spin_unlock(&oscc->oscc_lock);
-                }
                 cli = &obd->u.cli;
                 client_obd_list_lock(&cli->cl_loi_list_lock);
                 cli->cl_avail_grant = 0;
@@ -3449,15 +3353,6 @@ static int osc_import_event(struct obd_device *obd,
                 break;
         }
         case IMP_EVENT_ACTIVE: {
-                /* Only do this on the MDS OSC's */
-                if (imp->imp_server_timeout) {
-                        struct osc_creator *oscc = &obd->u.cli.cl_oscc;
-
-                        cfs_spin_lock(&oscc->oscc_lock);
-                        oscc->oscc_flags &= ~(OSCC_FLAG_NOSPC |
-                                              OSCC_FLAG_NOSPC_BLK);
-                        cfs_spin_unlock(&oscc->oscc_lock);
-                }
                 rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL);
                 break;
         }
@@ -3527,56 +3422,58 @@ static int brw_queue_work(const struct lu_env *env, void *data)
 
 int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 {
-        struct client_obd *cli = &obd->u.cli;
-        int rc;
-        ENTRY;
-
-        ENTRY;
-        rc = ptlrpcd_addref();
-        if (rc)
-                RETURN(rc);
-
-        rc = client_obd_setup(obd, lcfg);
-        if (rc == 0) {
-                void *handler;
-                handler = ptlrpcd_alloc_work(cli->cl_import,
-                                             brw_queue_work, cli);
-                if (!IS_ERR(handler))
-                        cli->cl_writeback_work = handler;
-                else
-                        rc = PTR_ERR(handler);
-        }
-
-        if (rc == 0) {
-                struct lprocfs_static_vars lvars = { 0 };
-
-                cli->cl_grant_shrink_interval = GRANT_SHRINK_INTERVAL;
-                lprocfs_osc_init_vars(&lvars);
-                if (lprocfs_obd_setup(obd, lvars.obd_vars) == 0) {
-                        lproc_osc_attach_seqstat(obd);
-                        sptlrpc_lprocfs_cliobd_attach(obd);
-                        ptlrpc_lprocfs_register_obd(obd);
-                }
-
-                oscc_init(obd);
-                /* We need to allocate a few requests more, because
-                   brw_interpret tries to create new requests before freeing
-                   previous ones. Ideally we want to have 2x max_rpcs_in_flight
-                   reserved, but I afraid that might be too much wasted RAM
-                   in fact, so 2 is just my guess and still should work. */
-                cli->cl_import->imp_rq_pool =
-                        ptlrpc_init_rq_pool(cli->cl_max_rpcs_in_flight + 2,
-                                            OST_MAXREQSIZE,
-                                            ptlrpc_add_rqs_to_pool);
+       struct lprocfs_static_vars lvars = { 0 };
+       struct client_obd          *cli = &obd->u.cli;
+       void                       *handler;
+       int                        rc;
+       ENTRY;
 
-                CFS_INIT_LIST_HEAD(&cli->cl_grant_shrink_list);
+       rc = ptlrpcd_addref();
+       if (rc)
+               RETURN(rc);
+
+       rc = client_obd_setup(obd, lcfg);
+       if (rc)
+               GOTO(out_ptlrpcd, rc);
+
+       handler = ptlrpcd_alloc_work(cli->cl_import, brw_queue_work, cli);
+       if (IS_ERR(handler))
+               GOTO(out_client_setup, rc = PTR_ERR(handler));
+       cli->cl_writeback_work = handler;
+
+       rc = osc_quota_setup(obd);
+       if (rc)
+               GOTO(out_ptlrpcd_work, rc);
+
+       cli->cl_grant_shrink_interval = GRANT_SHRINK_INTERVAL;
+       lprocfs_osc_init_vars(&lvars);
+       if (lprocfs_obd_setup(obd, lvars.obd_vars) == 0) {
+               lproc_osc_attach_seqstat(obd);
+               sptlrpc_lprocfs_cliobd_attach(obd);
+               ptlrpc_lprocfs_register_obd(obd);
+       }
 
-                ns_register_cancel(obd->obd_namespace, osc_cancel_for_recovery);
-        }
+       /* We need to allocate a few requests more, because
+        * brw_interpret tries to create new requests before freeing
+        * previous ones, Ideally we want to have 2x max_rpcs_in_flight
+        * reserved, but I'm afraid that might be too much wasted RAM
+        * in fact, so 2 is just my guess and still should work. */
+       cli->cl_import->imp_rq_pool =
+               ptlrpc_init_rq_pool(cli->cl_max_rpcs_in_flight + 2,
+                                   OST_MAXREQSIZE,
+                                   ptlrpc_add_rqs_to_pool);
+
+       CFS_INIT_LIST_HEAD(&cli->cl_grant_shrink_list);
+       ns_register_cancel(obd->obd_namespace, osc_cancel_for_recovery);
+       RETURN(rc);
 
-        if (rc)
-                ptlrpcd_decref();
-        RETURN(rc);
+out_ptlrpcd_work:
+       ptlrpcd_destroy_work(handler);
+out_client_setup:
+       client_obd_cleanup(obd);
+out_ptlrpcd:
+       ptlrpcd_decref();
+       RETURN(rc);
 }
 
 static int osc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
@@ -3591,9 +3488,9 @@ static int osc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
                 CDEBUG(D_HA, "Deactivating import %s\n", obd->obd_name);
                 /* ptlrpc_abort_inflight to stop an mds_lov_synchronize */
                 ptlrpc_deactivate_import(imp);
-                cfs_spin_lock(&imp->imp_lock);
-                imp->imp_pingable = 0;
-                cfs_spin_unlock(&imp->imp_lock);
+               spin_lock(&imp->imp_lock);
+               imp->imp_pingable = 0;
+               spin_unlock(&imp->imp_lock);
                 break;
         }
         case OBD_CLEANUP_EXPORTS: {
@@ -3626,9 +3523,21 @@ static int osc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
 
 int osc_cleanup(struct obd_device *obd)
 {
-        int rc;
+       struct client_obd *cli = &obd->u.cli;
+       int rc;
 
-        ENTRY;
+       ENTRY;
+
+       /* lru cleanup */
+       if (cli->cl_cache != NULL) {
+               LASSERT(cfs_atomic_read(&cli->cl_cache->ccc_users) > 0);
+               spin_lock(&cli->cl_cache->ccc_lru_lock);
+               cfs_list_del_init(&cli->cl_lru_osc);
+               spin_unlock(&cli->cl_cache->ccc_lru_lock);
+               cli->cl_lru_left = NULL;
+               cfs_atomic_dec(&cli->cl_cache->ccc_users);
+               cli->cl_cache = NULL;
+       }
 
         /* free memory of osc quota cache */
         osc_quota_cleanup(obd);
@@ -3677,9 +3586,7 @@ struct obd_ops osc_obd_ops = {
         .o_statfs_async         = osc_statfs_async,
         .o_packmd               = osc_packmd,
         .o_unpackmd             = osc_unpackmd,
-        .o_precreate            = osc_precreate,
         .o_create               = osc_create,
-        .o_create_async         = osc_create_async,
         .o_destroy              = osc_destroy,
         .o_getattr              = osc_getattr,
         .o_getattr_async        = osc_getattr_async,
@@ -3702,12 +3609,11 @@ struct obd_ops osc_obd_ops = {
         .o_process_config       = osc_process_config,
         .o_quotactl             = osc_quotactl,
         .o_quotacheck           = osc_quotacheck,
-        .o_quota_adjust_qunit   = osc_quota_adjust_qunit,
 };
 
 extern struct lu_kmem_descr osc_caches[];
-extern cfs_spinlock_t       osc_ast_guard;
-extern cfs_lock_class_key_t osc_ast_guard_class;
+extern spinlock_t osc_ast_guard;
+extern struct lock_class_key osc_ast_guard_class;
 
 int __init osc_init(void)
 {
@@ -3724,7 +3630,6 @@ int __init osc_init(void)
 
         lprocfs_osc_init_vars(&lvars);
 
-        osc_quota_init();
         rc = class_register_type(&osc_obd_ops, NULL, lvars.module_vars,
                                  LUSTRE_OSC_NAME, &osc_device_type);
         if (rc) {
@@ -3732,22 +3637,15 @@ int __init osc_init(void)
                 RETURN(rc);
         }
 
-        cfs_spin_lock_init(&osc_ast_guard);
-        cfs_lockdep_set_class(&osc_ast_guard, &osc_ast_guard_class);
-
-        osc_mds_ost_orig_logops = llog_lvfs_ops;
-        osc_mds_ost_orig_logops.lop_setup = llog_obd_origin_setup;
-        osc_mds_ost_orig_logops.lop_cleanup = llog_obd_origin_cleanup;
-        osc_mds_ost_orig_logops.lop_add = llog_obd_origin_add;
-        osc_mds_ost_orig_logops.lop_connect = llog_origin_connect;
+       spin_lock_init(&osc_ast_guard);
+       lockdep_set_class(&osc_ast_guard, &osc_ast_guard_class);
 
-        RETURN(rc);
+       RETURN(rc);
 }
 
 #ifdef __KERNEL__
 static void /*__exit*/ osc_exit(void)
 {
-       osc_quota_exit();
        class_unregister_type(LUSTRE_OSC_NAME);
        lu_kmem_fini(osc_caches);
 }