+ ENTRY;
+
+ /* this common part for get_info rpc */
+ key = req_capsule_client_get(tsi->tsi_pill, &RMF_GETINFO_KEY);
+ if (key == NULL) {
+ DEBUG_REQ(D_HA, tgt_ses_req(tsi), "no get_info key");
+ RETURN(err_serious(-EPROTO));
+ }
+ keylen = req_capsule_get_size(tsi->tsi_pill, &RMF_GETINFO_KEY,
+ RCL_CLIENT);
+
+ if (KEY_IS(KEY_LAST_ID)) {
+ obd_id *last_id;
+ struct ofd_seq *oseq;
+
+ req_capsule_extend(tsi->tsi_pill, &RQF_OST_GET_INFO_LAST_ID);
+ rc = req_capsule_server_pack(tsi->tsi_pill);
+ if (rc)
+ RETURN(err_serious(rc));
+
+ last_id = req_capsule_server_get(tsi->tsi_pill, &RMF_OBD_ID);
+
+ oseq = ofd_seq_load(tsi->tsi_env, ofd,
+ (obd_seq)exp->exp_filter_data.fed_group);
+ if (IS_ERR(oseq))
+ rc = -EFAULT;
+ else
+ *last_id = ofd_seq_last_oid(oseq);
+ ofd_seq_put(tsi->tsi_env, oseq);
+ } else if (KEY_IS(KEY_FIEMAP)) {
+ struct ll_fiemap_info_key *fm_key;
+ struct ll_user_fiemap *fiemap;
+ struct lu_fid *fid;
+
+ req_capsule_extend(tsi->tsi_pill, &RQF_OST_GET_INFO_FIEMAP);
+
+ fm_key = req_capsule_client_get(tsi->tsi_pill, &RMF_FIEMAP_KEY);
+ rc = tgt_validate_obdo(tsi, &fm_key->oa);
+ if (rc)
+ RETURN(err_serious(rc));
+
+ fid = &fm_key->oa.o_oi.oi_fid;
+
+ CDEBUG(D_INODE, "get FIEMAP of object "DFID"\n", PFID(fid));
+
+ replylen = fiemap_count_to_size(fm_key->fiemap.fm_extent_count);
+ req_capsule_set_size(tsi->tsi_pill, &RMF_FIEMAP_VAL,
+ RCL_SERVER, replylen);
+
+ rc = req_capsule_server_pack(tsi->tsi_pill);
+ if (rc)
+ RETURN(err_serious(rc));
+
+ fiemap = req_capsule_server_get(tsi->tsi_pill, &RMF_FIEMAP_VAL);
+ if (fiemap == NULL)
+ RETURN(-ENOMEM);
+
+ *fiemap = fm_key->fiemap;
+ rc = ofd_fiemap_get(tsi->tsi_env, ofd, fid, fiemap);
+
+ /* LU-3219: Lock the sparse areas to make sure dirty
+ * flushed back from client, then call fiemap again. */
+ if (fm_key->oa.o_valid & OBD_MD_FLFLAGS &&
+ fm_key->oa.o_flags & OBD_FL_SRVLOCK) {
+ cfs_list_t locked = CFS_LIST_HEAD_INIT(locked);
+
+ ost_fid_build_resid(fid, &fti->fti_resid);
+ rc = lock_zero_regions(ofd->ofd_namespace,
+ &fti->fti_resid, fiemap,
+ &locked);
+ if (rc == 0 && !cfs_list_empty(&locked)) {
+ rc = ofd_fiemap_get(tsi->tsi_env, ofd, fid,
+ fiemap);
+ unlock_zero_regions(ofd->ofd_namespace,
+ &locked);
+ }
+ }
+ } else if (KEY_IS(KEY_LAST_FID)) {
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ofd_seq *oseq;
+ struct lu_fid *fid;
+ int rc;
+
+ req_capsule_extend(tsi->tsi_pill, &RQF_OST_GET_INFO_LAST_FID);
+ rc = req_capsule_server_pack(tsi->tsi_pill);
+ if (rc)
+ RETURN(err_serious(rc));
+
+ fid = req_capsule_client_get(tsi->tsi_pill, &RMF_FID);
+ if (fid == NULL)
+ RETURN(err_serious(-EPROTO));
+
+ fid_le_to_cpu(&fti->fti_ostid.oi_fid, fid);
+
+ fid = req_capsule_server_get(tsi->tsi_pill, &RMF_FID);
+ if (fid == NULL)
+ RETURN(-ENOMEM);
+
+ oseq = ofd_seq_load(tsi->tsi_env, ofd,
+ ostid_seq(&fti->fti_ostid));
+ if (IS_ERR(oseq))
+ RETURN(PTR_ERR(oseq));
+
+ rc = ostid_to_fid(fid, &oseq->os_oi,
+ ofd->ofd_lut.lut_lsd.lsd_osd_index);
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ CDEBUG(D_HA, "%s: LAST FID is "DFID"\n", ofd_name(ofd),
+ PFID(fid));
+out_put:
+ ofd_seq_put(tsi->tsi_env, oseq);
+ } else {
+ CERROR("%s: not supported key %s\n", tgt_name(tsi->tsi_tgt),
+ (char *)key);
+ rc = -EOPNOTSUPP;
+ }
+ ofd_counter_incr(tsi->tsi_exp, LPROC_OFD_STATS_GET_INFO,
+ tsi->tsi_jobid, 1);
+
+ RETURN(rc);
+}
+
+static int ofd_getattr_hdl(struct tgt_session_info *tsi)
+{
+ struct ofd_thread_info *fti = tsi2ofd_info(tsi);
+ struct ofd_device *ofd = ofd_exp(tsi->tsi_exp);
+ struct ost_body *repbody;
+ struct lustre_handle lh = { 0 };
+ struct ofd_object *fo;
+ __u64 flags = 0;
+ ldlm_mode_t lock_mode = LCK_PR;
+ bool srvlock;
+ int rc;
+ ENTRY;
+
+ LASSERT(tsi->tsi_ost_body != NULL);
+
+ repbody = req_capsule_server_get(tsi->tsi_pill, &RMF_OST_BODY);
+ if (repbody == NULL)
+ RETURN(-ENOMEM);
+
+ repbody->oa.o_oi = tsi->tsi_ost_body->oa.o_oi;
+ repbody->oa.o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
+
+ srvlock = tsi->tsi_ost_body->oa.o_valid & OBD_MD_FLFLAGS &&
+ tsi->tsi_ost_body->oa.o_flags & OBD_FL_SRVLOCK;
+
+ if (srvlock) {
+ if (unlikely(tsi->tsi_ost_body->oa.o_flags & OBD_FL_FLUSH))
+ lock_mode = LCK_PW;
+
+ rc = tgt_extent_lock(tsi->tsi_tgt->lut_obd->obd_namespace,
+ &tsi->tsi_resid, 0, OBD_OBJECT_EOF, &lh,
+ lock_mode, &flags);
+ if (rc != 0)
+ RETURN(rc);
+ }
+
+ fo = ofd_object_find_exists(tsi->tsi_env, ofd, &tsi->tsi_fid);
+ if (IS_ERR(fo))
+ GOTO(out, rc = PTR_ERR(fo));
+
+ rc = ofd_attr_get(tsi->tsi_env, fo, &fti->fti_attr);
+ if (rc == 0) {
+ __u64 curr_version;
+
+ obdo_from_la(&repbody->oa, &fti->fti_attr,
+ OFD_VALID_FLAGS | LA_UID | LA_GID);
+ tgt_drop_id(tsi->tsi_exp, &repbody->oa);
+
+ /* Store object version in reply */
+ curr_version = dt_version_get(tsi->tsi_env,
+ ofd_object_child(fo));
+ if ((__s64)curr_version != -EOPNOTSUPP) {
+ repbody->oa.o_valid |= OBD_MD_FLDATAVERSION;
+ repbody->oa.o_data_version = curr_version;
+ }
+ }
+
+ ofd_object_put(tsi->tsi_env, fo);
+out:
+ if (srvlock)
+ tgt_extent_unlock(&lh, lock_mode);
+
+ ofd_counter_incr(tsi->tsi_exp, LPROC_OFD_STATS_GETATTR,
+ tsi->tsi_jobid, 1);
+
+ repbody->oa.o_valid |= OBD_MD_FLFLAGS;
+ repbody->oa.o_flags = OBD_FL_FLUSH;
+
+ RETURN(rc);
+}
+
+static int ofd_setattr_hdl(struct tgt_session_info *tsi)
+{
+ struct ofd_thread_info *fti = tsi2ofd_info(tsi);
+ struct ofd_device *ofd = ofd_exp(tsi->tsi_exp);
+ struct ost_body *body = tsi->tsi_ost_body;
+ struct ost_body *repbody;
+ struct ldlm_resource *res;
+ struct ofd_object *fo;
+ struct filter_fid *ff = NULL;
+ int rc = 0;
+
+ ENTRY;
+
+ LASSERT(body != NULL);
+
+ repbody = req_capsule_server_get(tsi->tsi_pill, &RMF_OST_BODY);
+ if (repbody == NULL)
+ RETURN(-ENOMEM);
+
+ repbody->oa.o_oi = body->oa.o_oi;
+ repbody->oa.o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
+
+ /* This would be very bad - accidentally truncating a file when
+ * changing the time or similar - bug 12203. */
+ if (body->oa.o_valid & OBD_MD_FLSIZE &&
+ body->oa.o_size != OBD_OBJECT_EOF) {
+ static char mdsinum[48];
+
+ if (body->oa.o_valid & OBD_MD_FLFID)
+ snprintf(mdsinum, sizeof(mdsinum) - 1,
+ "of parent "DFID, body->oa.o_parent_seq,
+ body->oa.o_parent_oid, 0);
+ else
+ mdsinum[0] = '\0';
+
+ CERROR("%s: setattr from %s is trying to truncate object "DFID
+ " %s\n", ofd_name(ofd), obd_export_nid2str(tsi->tsi_exp),
+ PFID(&tsi->tsi_fid), mdsinum);
+ RETURN(-EPERM);
+ }
+
+ fo = ofd_object_find_exists(tsi->tsi_env, ofd, &tsi->tsi_fid);
+ if (IS_ERR(fo))
+ GOTO(out, rc = PTR_ERR(fo));
+
+ la_from_obdo(&fti->fti_attr, &body->oa, body->oa.o_valid);
+ fti->fti_attr.la_valid &= ~LA_TYPE;
+
+ if (body->oa.o_valid & OBD_MD_FLFID) {
+ ff = &fti->fti_mds_fid;
+ ofd_prepare_fidea(ff, &body->oa);
+ }
+
+ /* setting objects attributes (including owner/group) */
+ rc = ofd_attr_set(tsi->tsi_env, fo, &fti->fti_attr, ff);
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ obdo_from_la(&repbody->oa, &fti->fti_attr,
+ OFD_VALID_FLAGS | LA_UID | LA_GID);
+ tgt_drop_id(tsi->tsi_exp, &repbody->oa);
+
+ ofd_counter_incr(tsi->tsi_exp, LPROC_OFD_STATS_SETATTR,
+ tsi->tsi_jobid, 1);
+ EXIT;
+out_put:
+ ofd_object_put(tsi->tsi_env, fo);
+out:
+ if (rc == 0) {
+ /* we do not call this before to avoid lu_object_find() in
+ * ->lvbo_update() holding another reference on the object.
+ * otherwise concurrent destroy can make the object unavailable
+ * for 2nd lu_object_find() waiting for the first reference
+ * to go... deadlock! */
+ res = ldlm_resource_get(ofd->ofd_namespace, NULL,
+ &tsi->tsi_resid, LDLM_EXTENT, 0);
+ if (res != NULL) {
+ ldlm_res_lvbo_update(res, NULL, 0);
+ ldlm_resource_putref(res);
+ }
+ }
+ return rc;
+}
+
+static int ofd_orphans_destroy(const struct lu_env *env,
+ struct obd_export *exp,
+ struct ofd_device *ofd, struct obdo *oa)
+{
+ struct ofd_thread_info *info = ofd_info(env);
+ struct lu_fid *fid = &info->fti_fid;
+ struct ost_id *oi = &oa->o_oi;
+ struct ofd_seq *oseq;
+ obd_seq seq = ostid_seq(oi);
+ obd_id end_id = ostid_id(oi);
+ obd_id last;
+ obd_id oid;
+ int skip_orphan;
+ int rc = 0;
+
+ ENTRY;
+
+ oseq = ofd_seq_get(ofd, seq);
+ if (oseq == NULL) {
+ CERROR("%s: Can not find seq for "DOSTID"\n",
+ ofd_name(ofd), POSTID(oi));
+ RETURN(-EINVAL);
+ }
+
+ *fid = oi->oi_fid;
+ last = ofd_seq_last_oid(oseq);
+ oid = last;
+
+ LASSERT(exp != NULL);
+ skip_orphan = !!(exp_connect_flags(exp) & OBD_CONNECT_SKIP_ORPHAN);
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_OST_NODESTROY))
+ goto done;
+
+ LCONSOLE(D_INFO, "%s: deleting orphan objects from "DOSTID
+ " to "DOSTID"\n", ofd_name(ofd), seq, end_id + 1, seq, last);
+
+ while (oid > end_id) {
+ rc = fid_set_id(fid, oid);
+ if (unlikely(rc != 0))
+ GOTO(out_put, rc);
+
+ rc = ofd_destroy_by_fid(env, ofd, fid, 1);
+ if (rc != 0 && rc != -ENOENT && rc != -ESTALE &&
+ likely(rc != -EREMCHG && rc != -EINPROGRESS))
+ /* this is pretty fatal... */
+ CEMERG("%s: error destroying precreated id "
+ DFID": rc = %d\n",
+ ofd_name(ofd), PFID(fid), rc);
+
+ oid--;
+ if (!skip_orphan) {
+ ofd_seq_last_oid_set(oseq, oid);
+ /* update last_id on disk periodically so that if we
+ * restart * we don't need to re-scan all of the just
+ * deleted objects. */
+ if ((oid & 511) == 0)
+ ofd_seq_last_oid_write(env, ofd, oseq);
+ }
+ }
+
+ CDEBUG(D_HA, "%s: after destroy: set last_id to "DOSTID"\n",
+ ofd_name(ofd), seq, oid);
+
+done:
+ if (!skip_orphan) {
+ ofd_seq_last_oid_set(oseq, oid);
+ rc = ofd_seq_last_oid_write(env, ofd, oseq);
+ } else {
+ /* don't reuse orphan object, return last used objid */
+ ostid_set_id(oi, last);
+ rc = 0;
+ }
+
+ GOTO(out_put, rc);
+
+out_put:
+ ofd_seq_put(env, oseq);
+ return rc;
+}
+
+static int ofd_create_hdl(struct tgt_session_info *tsi)
+{
+ struct ost_body *repbody;
+ const struct obdo *oa = &tsi->tsi_ost_body->oa;
+ struct obdo *rep_oa;
+ struct obd_export *exp = tsi->tsi_exp;
+ struct ofd_device *ofd = ofd_exp(exp);
+ obd_seq seq = ostid_seq(&oa->o_oi);
+ obd_id oid = ostid_id(&oa->o_oi);
+ struct ofd_seq *oseq;
+ int rc = 0, diff;
+ int sync_trans = 0;
+
+ ENTRY;
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
+ RETURN(-EROFS);
+
+ repbody = req_capsule_server_get(tsi->tsi_pill, &RMF_OST_BODY);
+ if (repbody == NULL)
+ RETURN(-ENOMEM);
+
+ down_read(&ofd->ofd_lastid_rwsem);
+ /* Currently, for safe, we do not distinguish which LAST_ID is broken,
+ * we may do that in the future.
+ * Return -ENOSPC until the LAST_ID rebuilt. */
+ if (unlikely(ofd->ofd_lastid_rebuilding))
+ GOTO(out_sem, rc = -ENOSPC);
+
+ rep_oa = &repbody->oa;
+ rep_oa->o_oi = oa->o_oi;
+
+ LASSERT(seq >= FID_SEQ_OST_MDT0);
+ LASSERT(oa->o_valid & OBD_MD_FLGROUP);
+
+ CDEBUG(D_INFO, "ofd_create("DOSTID")\n", POSTID(&oa->o_oi));
+
+ oseq = ofd_seq_load(tsi->tsi_env, ofd, seq);
+ if (IS_ERR(oseq)) {
+ CERROR("%s: Can't find FID Sequence "LPX64": rc = %ld\n",
+ ofd_name(ofd), seq, PTR_ERR(oseq));
+ GOTO(out_sem, rc = -EINVAL);
+ }
+
+ if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+ (oa->o_flags & OBD_FL_RECREATE_OBJS)) {
+ if (!ofd_obd(ofd)->obd_recovering ||
+ oid > ofd_seq_last_oid(oseq)) {
+ CERROR("%s: recreate objid "DOSTID" > last id "LPU64
+ "\n", ofd_name(ofd), POSTID(&oa->o_oi),
+ ofd_seq_last_oid(oseq));
+ GOTO(out_nolock, rc = -EINVAL);
+ }
+ /* Do nothing here, we re-create objects during recovery
+ * upon write replay, see ofd_preprw_write() */
+ GOTO(out_nolock, rc = 0);
+ }
+ /* former ofd_handle_precreate */
+ if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+ (oa->o_flags & OBD_FL_DELORPHAN)) {
+ exp->exp_filter_data.fed_lastid_gen = ofd->ofd_lastid_gen;
+
+ /* destroy orphans */
+ if (lustre_msg_get_conn_cnt(tgt_ses_req(tsi)->rq_reqmsg) <
+ exp->exp_conn_cnt) {
+ CERROR("%s: dropping old orphan cleanup request\n",
+ ofd_name(ofd));
+ GOTO(out_nolock, rc = 0);
+ }
+ /* This causes inflight precreates to abort and drop lock */
+ oseq->os_destroys_in_progress = 1;
+ mutex_lock(&oseq->os_create_lock);
+ if (!oseq->os_destroys_in_progress) {
+ CERROR("%s:["LPU64"] destroys_in_progress already"
+ " cleared\n", ofd_name(ofd), seq);
+ ostid_set_id(&rep_oa->o_oi, ofd_seq_last_oid(oseq));
+ GOTO(out, rc = 0);
+ }
+ diff = oid - ofd_seq_last_oid(oseq);
+ CDEBUG(D_HA, "ofd_last_id() = "LPU64" -> diff = %d\n",
+ ofd_seq_last_oid(oseq), diff);
+ if (-diff > OST_MAX_PRECREATE) {
+ /* FIXME: should reset precreate_next_id on MDS */
+ rc = 0;
+ } else if (diff < 0) {
+ rc = ofd_orphans_destroy(tsi->tsi_env, exp,
+ ofd, rep_oa);
+ oseq->os_destroys_in_progress = 0;
+ } else {
+ /* XXX: Used by MDS for the first time! */
+ oseq->os_destroys_in_progress = 0;
+ }
+ } else {
+ if (unlikely(exp->exp_filter_data.fed_lastid_gen !=
+ ofd->ofd_lastid_gen)) {
+ ofd_obd_disconnect(exp);
+ GOTO(out_nolock, rc = -ENOTCONN);
+ }
+
+ mutex_lock(&oseq->os_create_lock);
+ if (lustre_msg_get_conn_cnt(tgt_ses_req(tsi)->rq_reqmsg) <
+ exp->exp_conn_cnt) {
+ CERROR("%s: dropping old precreate request\n",
+ ofd_name(ofd));
+ GOTO(out, rc = 0);
+ }
+ /* only precreate if seq is 0, IDIF or normal and also o_id
+ * must be specfied */
+ if ((!fid_seq_is_mdt(seq) && !fid_seq_is_norm(seq) &&
+ !fid_seq_is_idif(seq)) || oid == 0) {
+ diff = 1; /* shouldn't we create this right now? */
+ } else {
+ diff = oid - ofd_seq_last_oid(oseq);
+ /* Do sync create if the seq is about to used up */
+ if (fid_seq_is_idif(seq) || fid_seq_is_mdt0(seq)) {
+ if (unlikely(oid >= IDIF_MAX_OID - 1))
+ sync_trans = 1;
+ } else if (fid_seq_is_norm(seq)) {
+ if (unlikely(oid >=
+ LUSTRE_DATA_SEQ_MAX_WIDTH - 1))
+ sync_trans = 1;
+ } else {
+ CERROR("%s : invalid o_seq "DOSTID"\n",
+ ofd_name(ofd), POSTID(&oa->o_oi));
+ GOTO(out, rc = -EINVAL);
+ }
+ }
+ }
+ if (diff > 0) {
+ cfs_time_t enough_time = cfs_time_shift(DISK_TIMEOUT);
+ obd_id next_id;
+ int created = 0;
+ int count;
+
+ if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
+ !(oa->o_flags & OBD_FL_DELORPHAN)) {
+ /* don't enforce grant during orphan recovery */
+ rc = ofd_grant_create(tsi->tsi_env,
+ ofd_obd(ofd)->obd_self_export,
+ &diff);
+ if (rc) {
+ CDEBUG(D_HA, "%s: failed to acquire grant "
+ "space for precreate (%d): rc = %d\n",
+ ofd_name(ofd), diff, rc);
+ diff = 0;
+ }
+ }
+
+ /* This can happen if a new OST is formatted and installed
+ * in place of an old one at the same index. Instead of
+ * precreating potentially millions of deleted old objects
+ * (possibly filling the OST), only precreate the last batch.
+ * LFSCK will eventually clean up any orphans. LU-14 */
+ if (diff > 5 * OST_MAX_PRECREATE) {
+ diff = OST_MAX_PRECREATE / 2;
+ LCONSOLE_WARN("%s: precreate FID "DOSTID" is over %u "
+ "larger than the LAST_ID "DOSTID", only "
+ "precreating the last %u objects.\n",
+ ofd_name(ofd), POSTID(&oa->o_oi),
+ 5 * OST_MAX_PRECREATE,
+ POSTID(&oseq->os_oi), diff);
+ ofd_seq_last_oid_set(oseq, ostid_id(&oa->o_oi) - diff);
+ }
+
+ while (diff > 0) {
+ next_id = ofd_seq_last_oid(oseq) + 1;
+ count = ofd_precreate_batch(ofd, diff);
+
+ CDEBUG(D_HA, "%s: reserve %d objects in group "LPX64
+ " at "LPU64"\n", ofd_name(ofd),
+ count, seq, next_id);
+
+ if (cfs_time_after(jiffies, enough_time)) {
+ LCONSOLE_WARN("%s: Slow creates, %d/%d objects"
+ " created at a rate of %d/s\n",
+ ofd_name(ofd), created,
+ diff + created,
+ created / DISK_TIMEOUT);
+ break;
+ }
+
+ rc = ofd_precreate_objects(tsi->tsi_env, ofd, next_id,
+ oseq, count, sync_trans);
+ if (rc > 0) {
+ created += rc;
+ diff -= rc;
+ } else if (rc < 0) {
+ break;
+ }
+ }
+ if (created > 0)
+ /* some objects got created, we can return
+ * them, even if last creation failed */
+ rc = 0;
+ else
+ CERROR("%s: unable to precreate: rc = %d\n",
+ ofd_name(ofd), rc);
+
+ if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
+ !(oa->o_flags & OBD_FL_DELORPHAN))
+ ofd_grant_commit(tsi->tsi_env,
+ ofd_obd(ofd)->obd_self_export, rc);
+
+ ostid_set_id(&rep_oa->o_oi, ofd_seq_last_oid(oseq));
+ }
+ EXIT;
+ ofd_counter_incr(exp, LPROC_OFD_STATS_CREATE,
+ tsi->tsi_jobid, 1);
+out:
+ mutex_unlock(&oseq->os_create_lock);
+out_nolock:
+ if (rc == 0)
+ rep_oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
+
+ ofd_seq_put(tsi->tsi_env, oseq);
+
+out_sem:
+ up_read(&ofd->ofd_lastid_rwsem);
+ return rc;
+}
+
+static int ofd_destroy_hdl(struct tgt_session_info *tsi)
+{
+ const struct ost_body *body = tsi->tsi_ost_body;
+ struct ost_body *repbody;
+ struct ofd_device *ofd = ofd_exp(tsi->tsi_exp);
+ struct ofd_thread_info *fti = tsi2ofd_info(tsi);
+ struct lu_fid *fid = &fti->fti_fid;
+ obd_id oid;
+ obd_count count;
+ int rc = 0;
+
+ ENTRY;
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
+ RETURN(-EROFS);
+
+ /* This is old case for clients before Lustre 2.4 */
+ /* If there's a DLM request, cancel the locks mentioned in it */
+ if (req_capsule_field_present(tsi->tsi_pill, &RMF_DLM_REQ,
+ RCL_CLIENT)) {
+ struct ldlm_request *dlm;
+
+ dlm = req_capsule_client_get(tsi->tsi_pill, &RMF_DLM_REQ);
+ if (dlm == NULL)
+ RETURN(-EFAULT);
+ ldlm_request_cancel(tgt_ses_req(tsi), dlm, 0);
+ }
+
+ *fid = body->oa.o_oi.oi_fid;
+ oid = ostid_id(&body->oa.o_oi);
+ LASSERT(oid != 0);
+
+ repbody = req_capsule_server_get(tsi->tsi_pill, &RMF_OST_BODY);
+
+ /* check that o_misc makes sense */
+ if (body->oa.o_valid & OBD_MD_FLOBJCOUNT)
+ count = body->oa.o_misc;
+ else
+ count = 1; /* default case - single destroy */
+
+ CDEBUG(D_HA, "%s: Destroy object "DOSTID" count %d\n", ofd_name(ofd),
+ POSTID(&body->oa.o_oi), count);
+
+ while (count > 0) {
+ int lrc;
+
+ lrc = ofd_destroy_by_fid(tsi->tsi_env, ofd, fid, 0);
+ if (lrc == -ENOENT) {
+ CDEBUG(D_INODE,
+ "%s: destroying non-existent object "DFID"\n",
+ ofd_name(ofd), PFID(fid));
+ /* rewrite rc with -ENOENT only if it is 0 */
+ if (rc == 0)
+ rc = lrc;
+ } else if (lrc != 0) {
+ CERROR("%s: error destroying object "DFID": %d\n",
+ ofd_name(ofd), PFID(fid), lrc);
+ rc = lrc;
+ }
+
+ count--;
+ oid++;
+ lrc = fid_set_id(fid, oid);
+ if (unlikely(lrc != 0 && count > 0))
+ GOTO(out, rc = lrc);
+ }
+
+ ofd_counter_incr(tsi->tsi_exp, LPROC_OFD_STATS_DESTROY,
+ tsi->tsi_jobid, 1);
+
+ GOTO(out, rc);
+
+out:
+ fid_to_ostid(fid, &repbody->oa.o_oi);
+ return rc;
+}
+
+static int ofd_statfs_hdl(struct tgt_session_info *tsi)
+{
+ struct obd_statfs *osfs;
+ int rc;
+
+ ENTRY;
+
+ osfs = req_capsule_server_get(tsi->tsi_pill, &RMF_OBD_STATFS);
+
+ rc = ofd_statfs(tsi->tsi_env, tsi->tsi_exp, osfs,
+ cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), 0);
+ if (rc != 0)
+ CERROR("%s: statfs failed: rc = %d\n",
+ tgt_name(tsi->tsi_tgt), rc);
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_OST_STATFS_EINPROGRESS))
+ rc = -EINPROGRESS;
+
+ ofd_counter_incr(tsi->tsi_exp, LPROC_OFD_STATS_STATFS,
+ tsi->tsi_jobid, 1);
+
+ RETURN(rc);
+}
+
+static int ofd_sync_hdl(struct tgt_session_info *tsi)
+{
+ struct ost_body *body = tsi->tsi_ost_body;
+ struct ost_body *repbody;
+ struct ofd_thread_info *fti = tsi2ofd_info(tsi);
+ struct ofd_device *ofd = ofd_exp(tsi->tsi_exp);
+ struct ofd_object *fo = NULL;
+ int rc = 0;
+
+ ENTRY;
+
+ repbody = req_capsule_server_get(tsi->tsi_pill, &RMF_OST_BODY);
+
+ /* if no objid is specified, it means "sync whole filesystem" */
+ if (!fid_is_zero(&tsi->tsi_fid)) {
+ fo = ofd_object_find_exists(tsi->tsi_env, ofd, &tsi->tsi_fid);
+ if (IS_ERR(fo))
+ RETURN(PTR_ERR(fo));
+ }
+
+ rc = tgt_sync(tsi->tsi_env, tsi->tsi_tgt,
+ fo != NULL ? ofd_object_child(fo) : NULL,
+ repbody->oa.o_size, repbody->oa.o_blocks);
+ if (rc)
+ GOTO(put, rc);
+
+ ofd_counter_incr(tsi->tsi_exp, LPROC_OFD_STATS_SYNC,
+ tsi->tsi_jobid, 1);
+ if (fo == NULL)
+ RETURN(0);
+
+ repbody->oa.o_oi = body->oa.o_oi;
+ repbody->oa.o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
+
+ rc = ofd_attr_get(tsi->tsi_env, fo, &fti->fti_attr);
+ if (rc == 0)
+ obdo_from_la(&repbody->oa, &fti->fti_attr,
+ OFD_VALID_FLAGS);
+ else
+ /* don't return rc from getattr */
+ rc = 0;
+ EXIT;
+put:
+ if (fo != NULL)
+ ofd_object_put(tsi->tsi_env, fo);
+ return rc;
+}
+
+static int ofd_punch_hdl(struct tgt_session_info *tsi)
+{
+ const struct obdo *oa = &tsi->tsi_ost_body->oa;
+ struct ost_body *repbody;
+ struct ofd_thread_info *info = tsi2ofd_info(tsi);
+ struct ldlm_namespace *ns = tsi->tsi_tgt->lut_obd->obd_namespace;
+ struct ldlm_resource *res;
+ struct ofd_object *fo;
+ struct filter_fid *ff = NULL;
+ __u64 flags = 0;
+ struct lustre_handle lh = { 0, };
+ int rc;
+ __u64 start, end;
+ bool srvlock;
+
+ ENTRY;
+
+ /* check that we do support OBD_CONNECT_TRUNCLOCK. */
+ CLASSERT(OST_CONNECT_SUPPORTED & OBD_CONNECT_TRUNCLOCK);
+
+ if ((oa->o_valid & (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS)) !=
+ (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS))
+ RETURN(err_serious(-EPROTO));
+
+ repbody = req_capsule_server_get(tsi->tsi_pill, &RMF_OST_BODY);
+ if (repbody == NULL)
+ RETURN(err_serious(-ENOMEM));
+
+ /* punch start,end are passed in o_size,o_blocks throught wire */
+ start = oa->o_size;
+ end = oa->o_blocks;
+
+ if (end != OBD_OBJECT_EOF) /* Only truncate is supported */
+ RETURN(-EPROTO);
+
+ /* standard truncate optimization: if file body is completely
+ * destroyed, don't send data back to the server. */
+ if (start == 0)
+ flags |= LDLM_FL_AST_DISCARD_DATA;
+
+ repbody->oa.o_oi = oa->o_oi;
+ repbody->oa.o_valid = OBD_MD_FLID;
+
+ srvlock = oa->o_valid & OBD_MD_FLFLAGS &&
+ oa->o_flags & OBD_FL_SRVLOCK;
+
+ if (srvlock) {
+ rc = tgt_extent_lock(ns, &tsi->tsi_resid, start, end, &lh,
+ LCK_PW, &flags);
+ if (rc != 0)
+ RETURN(rc);
+ }
+
+ CDEBUG(D_INODE, "calling punch for object "DFID", valid = "LPX64
+ ", start = "LPD64", end = "LPD64"\n", PFID(&tsi->tsi_fid),
+ oa->o_valid, start, end);
+
+ fo = ofd_object_find_exists(tsi->tsi_env, ofd_exp(tsi->tsi_exp),
+ &tsi->tsi_fid);
+ if (IS_ERR(fo))
+ GOTO(out, rc = PTR_ERR(fo));
+
+ la_from_obdo(&info->fti_attr, oa,
+ OBD_MD_FLMTIME | OBD_MD_FLATIME | OBD_MD_FLCTIME);
+ info->fti_attr.la_size = start;
+ info->fti_attr.la_valid |= LA_SIZE;
+
+ if (oa->o_valid & OBD_MD_FLFID) {
+ ff = &info->fti_mds_fid;
+ ofd_prepare_fidea(ff, oa);
+ }
+
+ rc = ofd_object_punch(tsi->tsi_env, fo, start, end, &info->fti_attr,
+ ff, (struct obdo *)oa);
+ if (rc)
+ GOTO(out_put, rc);
+
+ ofd_counter_incr(tsi->tsi_exp, LPROC_OFD_STATS_PUNCH,
+ tsi->tsi_jobid, 1);
+ EXIT;
+out_put:
+ ofd_object_put(tsi->tsi_env, fo);
+out:
+ if (srvlock)
+ tgt_extent_unlock(&lh, LCK_PW);
+ if (rc == 0) {
+ /* we do not call this before to avoid lu_object_find() in
+ * ->lvbo_update() holding another reference on the object.
+ * otherwise concurrent destroy can make the object unavailable
+ * for 2nd lu_object_find() waiting for the first reference
+ * to go... deadlock! */
+ res = ldlm_resource_get(ns, NULL, &tsi->tsi_resid,
+ LDLM_EXTENT, 0);
+ if (res != NULL) {
+ ldlm_res_lvbo_update(res, NULL, 0);
+ ldlm_resource_putref(res);
+ }
+ }
+ return rc;
+}
+
+static int ofd_quotactl(struct tgt_session_info *tsi)
+{
+ struct obd_quotactl *oqctl, *repoqc;
+ int rc;
+
+ ENTRY;
+
+ oqctl = req_capsule_client_get(tsi->tsi_pill, &RMF_OBD_QUOTACTL);
+ if (oqctl == NULL)
+ RETURN(err_serious(-EPROTO));
+
+ repoqc = req_capsule_server_get(tsi->tsi_pill, &RMF_OBD_QUOTACTL);
+ if (repoqc == NULL)
+ RETURN(err_serious(-ENOMEM));
+
+ /* report success for quota on/off for interoperability with current MDT
+ * stack */
+ if (oqctl->qc_cmd == Q_QUOTAON || oqctl->qc_cmd == Q_QUOTAOFF)
+ RETURN(0);
+
+ *repoqc = *oqctl;
+ rc = lquotactl_slv(tsi->tsi_env, tsi->tsi_tgt->lut_bottom, repoqc);
+
+ ofd_counter_incr(tsi->tsi_exp, LPROC_OFD_STATS_QUOTACTL,
+ tsi->tsi_jobid, 1);
+
+ RETURN(rc);
+}
+
+/* High priority request handlers for OFD */
+
+/* prolong locks for the current service time of the corresponding
+ * portal (= OST_IO_PORTAL)
+ */
+static inline int prolong_timeout(struct ptlrpc_request *req)
+{
+ struct ptlrpc_service_part *svcpt = req->rq_rqbd->rqbd_svcpt;
+
+ if (AT_OFF)
+ return obd_timeout / 2;
+
+ return max(at_est2timeout(at_get(&svcpt->scp_at_estimate)),
+ ldlm_timeout);
+}
+
+static int ofd_prolong_one_lock(struct tgt_session_info *tsi,
+ struct ldlm_lock *lock,
+ struct ldlm_extent *extent, int timeout)
+{
+
+ if (lock->l_flags & LDLM_FL_DESTROYED) /* lock already cancelled */
+ return 0;
+
+ /* XXX: never try to grab resource lock here because we're inside
+ * exp_bl_list_lock; in ldlm_lockd.c to handle waiting list we take
+ * res lock and then exp_bl_list_lock. */
+
+ if (!(lock->l_flags & LDLM_FL_AST_SENT))
+ /* ignore locks not being cancelled */
+ return 0;
+
+ LDLM_DEBUG(lock, "refreshed for req x"LPU64" ext("LPU64"->"LPU64") "
+ "to %ds.\n", tgt_ses_req(tsi)->rq_xid, extent->start,
+ extent->end, timeout);
+
+ /* OK. this is a possible lock the user holds doing I/O
+ * let's refresh eviction timer for it */
+ ldlm_refresh_waiting_lock(lock, timeout);
+ return 1;
+}
+
+static int ofd_prolong_extent_locks(struct tgt_session_info *tsi,
+ __u64 start, __u64 end)
+{
+ struct obd_export *exp = tsi->tsi_exp;
+ struct obdo *oa = &tsi->tsi_ost_body->oa;
+ struct ldlm_extent extent = {
+ .start = start,
+ .end = end
+ };
+ struct ldlm_lock *lock;
+ int timeout = prolong_timeout(tgt_ses_req(tsi));
+ int lock_count = 0;
+
+ ENTRY;
+
+ if (oa->o_valid & OBD_MD_FLHANDLE) {
+ /* mostly a request should be covered by only one lock, try
+ * fast path. */
+ lock = ldlm_handle2lock(&oa->o_handle);
+ if (lock != NULL) {
+ /* Fast path to check if the lock covers the whole IO
+ * region exclusively. */
+ if (lock->l_granted_mode == LCK_PW &&
+ ldlm_extent_contain(&lock->l_policy_data.l_extent,
+ &extent)) {
+ /* bingo */
+ LASSERT(lock->l_export == exp);
+ lock_count = ofd_prolong_one_lock(tsi, lock,
+ &extent, timeout);
+ LDLM_LOCK_PUT(lock);
+ RETURN(lock_count);
+ }
+ LDLM_LOCK_PUT(lock);
+ }
+ }
+
+ spin_lock_bh(&exp->exp_bl_list_lock);
+ list_for_each_entry(lock, &exp->exp_bl_list, l_exp_list) {
+ LASSERT(lock->l_flags & LDLM_FL_AST_SENT);
+ LASSERT(lock->l_resource->lr_type == LDLM_EXTENT);
+
+ if (!ldlm_res_eq(&tsi->tsi_resid, &lock->l_resource->lr_name))
+ continue;
+
+ if (!ldlm_extent_overlap(&lock->l_policy_data.l_extent,
+ &extent))
+ continue;
+
+ lock_count += ofd_prolong_one_lock(tsi, lock, &extent, timeout);
+ }
+ spin_unlock_bh(&exp->exp_bl_list_lock);
+
+ RETURN(lock_count);
+}
+
+/**
+ * Returns 1 if the given PTLRPC matches the given LDLM lock, or 0 if it does
+ * not.
+ */
+static int ofd_rw_hpreq_lock_match(struct ptlrpc_request *req,
+ struct ldlm_lock *lock)
+{
+ struct niobuf_remote *rnb;
+ struct obd_ioobj *ioo;
+ ldlm_mode_t mode;
+ struct ldlm_extent ext;
+ __u32 opc = lustre_msg_get_opc(req->rq_reqmsg);
+
+ ENTRY;
+
+ ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
+ LASSERT(ioo != NULL);
+
+ rnb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
+ LASSERT(rnb != NULL);
+
+ ext.start = rnb->offset;
+ rnb += ioo->ioo_bufcnt - 1;
+ ext.end = rnb->offset + rnb->len - 1;
+
+ LASSERT(lock->l_resource != NULL);
+ if (!ostid_res_name_eq(&ioo->ioo_oid, &lock->l_resource->lr_name))
+ RETURN(0);
+
+ mode = LCK_PW;
+ if (opc == OST_READ)
+ mode |= LCK_PR;
+
+ if (!(lock->l_granted_mode & mode))
+ RETURN(0);
+
+ RETURN(ldlm_extent_overlap(&lock->l_policy_data.l_extent, &ext));
+}
+
+/**
+ * High-priority queue request check for whether the given PTLRPC request
+ * (\a req) is blocking an LDLM lock cancel.
+ *
+ * Returns 1 if the given given PTLRPC request (\a req) is blocking an LDLM lock
+ * cancel, 0 if it is not, and -EFAULT if the request is malformed.
+ *
+ * Only OST_READs, OST_WRITEs and OST_PUNCHes go on the h-p RPC queue. This
+ * function looks only at OST_READs and OST_WRITEs.
+ */
+static int ofd_rw_hpreq_check(struct ptlrpc_request *req)
+{
+ struct tgt_session_info *tsi;
+ struct obd_ioobj *ioo;
+ struct niobuf_remote *rnb;
+ __u64 start, end;
+ int lock_count;
+
+ ENTRY;
+
+ /* Don't use tgt_ses_info() to get session info, because lock_match()
+ * can be called while request has no processing thread yet. */
+ tsi = lu_context_key_get(&req->rq_session, &tgt_session_key);
+ LASSERT(tsi != NULL);
+
+ /*
+ * Use LASSERT below because malformed RPCs should have
+ * been filtered out in tgt_hpreq_handler().
+ */
+ ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
+ LASSERT(ioo != NULL);
+
+ rnb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
+ LASSERT(rnb != NULL);
+ LASSERT(!(rnb->flags & OBD_BRW_SRVLOCK));
+
+ start = rnb->offset;
+ rnb += ioo->ioo_bufcnt - 1;
+ end = rnb->offset + rnb->len - 1;
+
+ DEBUG_REQ(D_RPCTRACE, req, "%s %s: refresh rw locks: "DFID
+ " ("LPU64"->"LPU64")\n",
+ tgt_name(tsi->tsi_tgt), current->comm,
+ PFID(&tsi->tsi_fid), start, end);
+
+ lock_count = ofd_prolong_extent_locks(tsi, start, end);
+
+ CDEBUG(D_DLMTRACE, "%s: refreshed %u locks timeout for req %p.\n",
+ tgt_name(tsi->tsi_tgt), lock_count, req);
+
+ RETURN(lock_count > 0);
+}
+
+static void ofd_rw_hpreq_fini(struct ptlrpc_request *req)
+{
+ ofd_rw_hpreq_check(req);
+}
+
+/**
+ * Like tgt_rw_hpreq_lock_match(), but for OST_PUNCH RPCs.
+ */
+static int ofd_punch_hpreq_lock_match(struct ptlrpc_request *req,
+ struct ldlm_lock *lock)
+{
+ struct tgt_session_info *tsi;
+
+ /* Don't use tgt_ses_info() to get session info, because lock_match()
+ * can be called while request has no processing thread yet. */
+ tsi = lu_context_key_get(&req->rq_session, &tgt_session_key);
+ LASSERT(tsi != NULL);
+
+ LASSERT(tsi->tsi_ost_body != NULL);
+ if (tsi->tsi_ost_body->oa.o_valid & OBD_MD_FLHANDLE &&
+ tsi->tsi_ost_body->oa.o_handle.cookie == lock->l_handle.h_cookie)
+ return 1;
+
+ return 0;
+}
+
+/**
+ * Like ost_rw_hpreq_check(), but for OST_PUNCH RPCs.
+ */
+static int ofd_punch_hpreq_check(struct ptlrpc_request *req)
+{
+ struct tgt_session_info *tsi;
+ struct obdo *oa;
+ int lock_count;
+
+ ENTRY;
+
+ /* Don't use tgt_ses_info() to get session info, because lock_match()
+ * can be called while request has no processing thread yet. */
+ tsi = lu_context_key_get(&req->rq_session, &tgt_session_key);
+ LASSERT(tsi != NULL);
+ oa = &tsi->tsi_ost_body->oa;
+
+ LASSERT(!(oa->o_valid & OBD_MD_FLFLAGS &&
+ oa->o_flags & OBD_FL_SRVLOCK));
+
+ CDEBUG(D_DLMTRACE,
+ "%s: refresh locks: "LPU64"/"LPU64" ("LPU64"->"LPU64")\n",
+ tgt_name(tsi->tsi_tgt), tsi->tsi_resid.name[0],
+ tsi->tsi_resid.name[1], oa->o_size, oa->o_blocks);
+
+ lock_count = ofd_prolong_extent_locks(tsi, oa->o_size, oa->o_blocks);
+
+ CDEBUG(D_DLMTRACE, "%s: refreshed %u locks timeout for req %p.\n",
+ tgt_name(tsi->tsi_tgt), lock_count, req);
+
+ RETURN(lock_count > 0);
+}
+
+static void ofd_punch_hpreq_fini(struct ptlrpc_request *req)
+{
+ ofd_punch_hpreq_check(req);
+}
+
+struct ptlrpc_hpreq_ops ofd_hpreq_rw = {
+ .hpreq_lock_match = ofd_rw_hpreq_lock_match,
+ .hpreq_check = ofd_rw_hpreq_check,
+ .hpreq_fini = ofd_rw_hpreq_fini
+};
+
+struct ptlrpc_hpreq_ops ofd_hpreq_punch = {
+ .hpreq_lock_match = ofd_punch_hpreq_lock_match,
+ .hpreq_check = ofd_punch_hpreq_check,
+ .hpreq_fini = ofd_punch_hpreq_fini
+};
+
+/** Assign high priority operations to the IO requests */
+static void ofd_hp_brw(struct tgt_session_info *tsi)
+{
+ struct niobuf_remote *rnb;
+ struct obd_ioobj *ioo;
+
+ ENTRY;
+
+ ioo = req_capsule_client_get(tsi->tsi_pill, &RMF_OBD_IOOBJ);
+ LASSERT(ioo != NULL); /* must exist after request preprocessing */
+ if (ioo->ioo_bufcnt > 0) {
+ rnb = req_capsule_client_get(tsi->tsi_pill, &RMF_NIOBUF_REMOTE);
+ LASSERT(rnb != NULL); /* must exist after request preprocessing */
+
+ /* no high priority if server lock is needed */
+ if (rnb->flags & OBD_BRW_SRVLOCK)
+ return;
+ }
+ tgt_ses_req(tsi)->rq_ops = &ofd_hpreq_rw;
+}
+
+static void ofd_hp_punch(struct tgt_session_info *tsi)
+{
+ LASSERT(tsi->tsi_ost_body != NULL); /* must exists if we are here */
+ /* no high-priority if server lock is needed */
+ if (tsi->tsi_ost_body->oa.o_valid & OBD_MD_FLFLAGS &&
+ tsi->tsi_ost_body->oa.o_flags & OBD_FL_SRVLOCK)
+ return;
+ tgt_ses_req(tsi)->rq_ops = &ofd_hpreq_punch;
+}
+
+#define OBD_FAIL_OST_READ_NET OBD_FAIL_OST_BRW_NET
+#define OBD_FAIL_OST_WRITE_NET OBD_FAIL_OST_BRW_NET
+#define OST_BRW_READ OST_READ
+#define OST_BRW_WRITE OST_WRITE
+
+static struct tgt_handler ofd_tgt_handlers[] = {
+TGT_RPC_HANDLER(OST_FIRST_OPC,
+ 0, OST_CONNECT, tgt_connect,
+ &RQF_CONNECT, LUSTRE_OBD_VERSION),
+TGT_RPC_HANDLER(OST_FIRST_OPC,
+ 0, OST_DISCONNECT, tgt_disconnect,
+ &RQF_OST_DISCONNECT, LUSTRE_OBD_VERSION),
+TGT_RPC_HANDLER(OST_FIRST_OPC,
+ 0, OST_SET_INFO, ofd_set_info_hdl,
+ &RQF_OBD_SET_INFO, LUSTRE_OST_VERSION),
+TGT_OST_HDL(0, OST_GET_INFO, ofd_get_info_hdl),
+TGT_OST_HDL(HABEO_CORPUS| HABEO_REFERO, OST_GETATTR, ofd_getattr_hdl),
+TGT_OST_HDL(HABEO_CORPUS| HABEO_REFERO | MUTABOR,
+ OST_SETATTR, ofd_setattr_hdl),
+TGT_OST_HDL(0 | HABEO_REFERO | MUTABOR,
+ OST_CREATE, ofd_create_hdl),
+TGT_OST_HDL(0 | HABEO_REFERO | MUTABOR,
+ OST_DESTROY, ofd_destroy_hdl),
+TGT_OST_HDL(0 | HABEO_REFERO, OST_STATFS, ofd_statfs_hdl),
+TGT_OST_HDL_HP(HABEO_CORPUS| HABEO_REFERO,
+ OST_BRW_READ, tgt_brw_read,
+ ofd_hp_brw),
+/* don't set CORPUS flag for brw_write because -ENOENT may be valid case */
+TGT_OST_HDL_HP(HABEO_CORPUS| MUTABOR, OST_BRW_WRITE, tgt_brw_write,
+ ofd_hp_brw),
+TGT_OST_HDL_HP(HABEO_CORPUS| HABEO_REFERO | MUTABOR,
+ OST_PUNCH, ofd_punch_hdl,
+ ofd_hp_punch),
+TGT_OST_HDL(HABEO_CORPUS| HABEO_REFERO, OST_SYNC, ofd_sync_hdl),
+TGT_OST_HDL(0 | HABEO_REFERO, OST_QUOTACTL, ofd_quotactl),
+};
+
+static struct tgt_opc_slice ofd_common_slice[] = {
+ {
+ .tos_opc_start = OST_FIRST_OPC,
+ .tos_opc_end = OST_LAST_OPC,
+ .tos_hs = ofd_tgt_handlers
+ },
+ {
+ .tos_opc_start = OBD_FIRST_OPC,
+ .tos_opc_end = OBD_LAST_OPC,
+ .tos_hs = tgt_obd_handlers
+ },
+ {
+ .tos_opc_start = LDLM_FIRST_OPC,
+ .tos_opc_end = LDLM_LAST_OPC,
+ .tos_hs = tgt_dlm_handlers
+ },
+ {
+ .tos_opc_start = OUT_UPDATE_FIRST_OPC,
+ .tos_opc_end = OUT_UPDATE_LAST_OPC,
+ .tos_hs = tgt_out_handlers
+ },
+ {
+ .tos_opc_start = SEQ_FIRST_OPC,
+ .tos_opc_end = SEQ_LAST_OPC,
+ .tos_hs = seq_handlers
+ },
+ {
+ .tos_opc_start = LFSCK_FIRST_OPC,
+ .tos_opc_end = LFSCK_LAST_OPC,
+ .tos_hs = tgt_lfsck_handlers
+ },
+ {
+ .tos_hs = NULL
+ }
+};
+
+static int ofd_init0(const struct lu_env *env, struct ofd_device *m,
+ struct lu_device_type *ldt, struct lustre_cfg *cfg)
+{
+ const char *dev = lustre_cfg_string(cfg, 0);
+ struct ofd_thread_info *info = NULL;
+ struct obd_device *obd;
+ struct obd_statfs *osfs;
+ int rc;
+
+ ENTRY;
+
+ obd = class_name2obd(dev);
+ if (obd == NULL) {
+ CERROR("Cannot find obd with name %s\n", dev);
+ RETURN(-ENODEV);
+ }
+
+ rc = lu_env_refill((struct lu_env *)env);
+ if (rc != 0)
+ RETURN(rc);
+
+ obd->u.obt.obt_magic = OBT_MAGIC;
+
+ m->ofd_fmd_max_num = OFD_FMD_MAX_NUM_DEFAULT;
+ m->ofd_fmd_max_age = OFD_FMD_MAX_AGE_DEFAULT;
+
+ spin_lock_init(&m->ofd_flags_lock);
+ m->ofd_raid_degraded = 0;
+ m->ofd_syncjournal = 0;
+ ofd_slc_set(m);
+ m->ofd_grant_compat_disable = 0;
+ m->ofd_soft_sync_limit = OFD_SOFT_SYNC_LIMIT_DEFAULT;
+
+ /* statfs data */
+ spin_lock_init(&m->ofd_osfs_lock);
+ m->ofd_osfs_age = cfs_time_shift_64(-1000);
+ m->ofd_osfs_unstable = 0;
+ m->ofd_statfs_inflight = 0;
+ m->ofd_osfs_inflight = 0;
+
+ /* grant data */
+ spin_lock_init(&m->ofd_grant_lock);
+ m->ofd_tot_dirty = 0;
+ m->ofd_tot_granted = 0;
+ m->ofd_tot_pending = 0;
+ m->ofd_seq_count = 0;
+ init_waitqueue_head(&m->ofd_inconsistency_thread.t_ctl_waitq);
+ INIT_LIST_HEAD(&m->ofd_inconsistency_list);
+ spin_lock_init(&m->ofd_inconsistency_lock);
+
+ spin_lock_init(&m->ofd_batch_lock);
+ rwlock_init(&obd->u.filter.fo_sptlrpc_lock);
+ sptlrpc_rule_set_init(&obd->u.filter.fo_sptlrpc_rset);
+ init_rwsem(&m->ofd_lastid_rwsem);
+
+ obd->u.filter.fo_fl_oss_capa = 0;
+ CFS_INIT_LIST_HEAD(&obd->u.filter.fo_capa_keys);
+ obd->u.filter.fo_capa_hash = init_capa_hash();
+ if (obd->u.filter.fo_capa_hash == NULL)
+ RETURN(-ENOMEM);
+
+ m->ofd_dt_dev.dd_lu_dev.ld_ops = &ofd_lu_ops;
+ m->ofd_dt_dev.dd_lu_dev.ld_obd = obd;
+ /* set this lu_device to obd, because error handling need it */
+ obd->obd_lu_dev = &m->ofd_dt_dev.dd_lu_dev;
+
+ rc = ofd_procfs_init(m);
+ if (rc) {
+ CERROR("Can't init ofd lprocfs, rc %d\n", rc);
+ RETURN(rc);
+ }
+
+ /* No connection accepted until configurations will finish */
+ spin_lock(&obd->obd_dev_lock);
+ obd->obd_no_conn = 1;
+ spin_unlock(&obd->obd_dev_lock);
+ obd->obd_replayable = 1;
+ if (cfg->lcfg_bufcount > 4 && LUSTRE_CFG_BUFLEN(cfg, 4) > 0) {
+ char *str = lustre_cfg_string(cfg, 4);
+
+ if (strchr(str, 'n')) {
+ CWARN("%s: recovery disabled\n", obd->obd_name);
+ obd->obd_replayable = 0;
+ }
+ }
+
+ info = ofd_info_init(env, NULL);
+ if (info == NULL)
+ RETURN(-EFAULT);
+
+ rc = ofd_stack_init(env, m, cfg);
+ if (rc) {
+ CERROR("Can't init device stack, rc %d\n", rc);
+ GOTO(err_fini_proc, rc);
+ }
+
+ ofd_procfs_add_brw_stats_symlink(m);
+
+ /* populate cached statfs data */
+ osfs = &ofd_info(env)->fti_u.osfs;
+ rc = ofd_statfs_internal(env, m, osfs, 0, NULL);
+ if (rc != 0) {
+ CERROR("%s: can't get statfs data, rc %d\n", obd->obd_name, rc);
+ GOTO(err_fini_stack, rc);
+ }
+ if (!IS_PO2(osfs->os_bsize)) {
+ CERROR("%s: blocksize (%d) is not a power of 2\n",
+ obd->obd_name, osfs->os_bsize);
+ GOTO(err_fini_stack, rc = -EPROTO);
+ }
+ m->ofd_blockbits = fls(osfs->os_bsize) - 1;
+
+ m->ofd_precreate_batch = OFD_PRECREATE_BATCH_DEFAULT;
+ if (osfs->os_bsize * osfs->os_blocks < OFD_PRECREATE_SMALL_FS)
+ m->ofd_precreate_batch = OFD_PRECREATE_BATCH_SMALL;
+
+ snprintf(info->fti_u.name, sizeof(info->fti_u.name), "%s-%s",
+ "filter"/*LUSTRE_OST_NAME*/, obd->obd_uuid.uuid);
+ m->ofd_namespace = ldlm_namespace_new(obd, info->fti_u.name,
+ LDLM_NAMESPACE_SERVER,
+ LDLM_NAMESPACE_GREEDY,
+ LDLM_NS_TYPE_OST);
+ if (m->ofd_namespace == NULL)
+ GOTO(err_fini_stack, rc = -ENOMEM);
+ /* set obd_namespace for compatibility with old code */
+ obd->obd_namespace = m->ofd_namespace;
+ ldlm_register_intent(m->ofd_namespace, ofd_intent_policy);
+ m->ofd_namespace->ns_lvbo = &ofd_lvbo;
+ m->ofd_namespace->ns_lvbp = m;
+
+ ptlrpc_init_client(LDLM_CB_REQUEST_PORTAL, LDLM_CB_REPLY_PORTAL,
+ "filter_ldlm_cb_client", &obd->obd_ldlm_client);
+
+ dt_conf_get(env, m->ofd_osd, &m->ofd_dt_conf);
+
+ /* Allow at most ddp_grant_reserved% of the available filesystem space
+ * to be granted to clients, so that any errors in the grant overhead
+ * calculations do not allow granting more space to clients than can be
+ * written. Assumes that in aggregate the grant overhead calculations do
+ * not have more than ddp_grant_reserved% estimation error in them. */
+ m->ofd_grant_ratio =
+ ofd_grant_ratio_conv(m->ofd_dt_conf.ddp_grant_reserved);
+
+ rc = tgt_init(env, &m->ofd_lut, obd, m->ofd_osd, ofd_common_slice,
+ OBD_FAIL_OST_ALL_REQUEST_NET,
+ OBD_FAIL_OST_ALL_REPLY_NET);
+ if (rc)
+ GOTO(err_free_ns, rc);
+
+ rc = ofd_fs_setup(env, m, obd);
+ if (rc)
+ GOTO(err_fini_lut, rc);
+
+ rc = ofd_start_inconsistency_verification_thread(m);
+ if (rc != 0)
+ GOTO(err_fini_fs, rc);
+
+ RETURN(0);
+
+err_fini_fs:
+ ofd_fs_cleanup(env, m);
+err_fini_lut:
+ tgt_fini(env, &m->ofd_lut);
+err_free_ns:
+ ldlm_namespace_free(m->ofd_namespace, 0, obd->obd_force);
+ obd->obd_namespace = m->ofd_namespace = NULL;
+err_fini_stack:
+ ofd_stack_fini(env, m, &m->ofd_osd->dd_lu_dev);
+err_fini_proc:
+ ofd_procfs_fini(m);
+ return rc;
+}
+
+static void ofd_fini(const struct lu_env *env, struct ofd_device *m)
+{
+ struct obd_device *obd = ofd_obd(m);
+ struct lu_device *d = &m->ofd_dt_dev.dd_lu_dev;
+ struct lfsck_stop stop;
+
+ stop.ls_status = LS_PAUSED;
+ stop.ls_flags = 0;
+ lfsck_stop(env, m->ofd_osd, &stop);
+ target_recovery_fini(obd);
+ obd_exports_barrier(obd);
+ obd_zombie_barrier();
+
+ tgt_fini(env, &m->ofd_lut);
+ ofd_stop_inconsistency_verification_thread(m);
+ lfsck_degister(env, m->ofd_osd);
+ ofd_fs_cleanup(env, m);
+
+ ofd_free_capa_keys(m);
+ cleanup_capa_hash(obd->u.filter.fo_capa_hash);
+
+ if (m->ofd_namespace != NULL) {
+ ldlm_namespace_free(m->ofd_namespace, NULL,
+ d->ld_obd->obd_force);
+ d->ld_obd->obd_namespace = m->ofd_namespace = NULL;
+ }
+
+ ofd_stack_fini(env, m, &m->ofd_dt_dev.dd_lu_dev);
+ ofd_procfs_fini(m);
+ LASSERT(atomic_read(&d->ld_ref) == 0);
+ server_put_mount(obd->obd_name, true);
+ EXIT;
+}
+
+static struct lu_device *ofd_device_fini(const struct lu_env *env,
+ struct lu_device *d)
+{
+ ENTRY;
+ ofd_fini(env, ofd_dev(d));
+ RETURN(NULL);
+}
+
+static struct lu_device *ofd_device_free(const struct lu_env *env,
+ struct lu_device *d)
+{
+ struct ofd_device *m = ofd_dev(d);
+
+ dt_device_fini(&m->ofd_dt_dev);