+int ofd_setattr(const struct lu_env *env, struct obd_export *exp,
+ struct obd_info *oinfo, struct obd_trans_info *oti)
+{
+ struct ofd_thread_info *info;
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ldlm_namespace *ns = ofd->ofd_namespace;
+ struct ldlm_resource *res;
+ struct ofd_object *fo;
+ struct obdo *oa = oinfo->oi_oa;
+ struct filter_fid *ff = NULL;
+ int rc = 0;
+
+ ENTRY;
+
+ info = ofd_info_init(env, exp);
+ ofd_oti2info(info, oti);
+
+ fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
+ ofd_build_resid(&info->fti_fid, &info->fti_resid);
+
+ rc = ofd_auth_capa(exp, &info->fti_fid, oa->o_seq,
+ oinfo_capa(oinfo), CAPA_OPC_META_WRITE);
+ if (rc)
+ GOTO(out, rc);
+
+ /* This would be very bad - accidentally truncating a file when
+ * changing the time or similar - bug 12203. */
+ if (oinfo->oi_oa->o_valid & OBD_MD_FLSIZE &&
+ oinfo->oi_policy.l_extent.end != OBD_OBJECT_EOF) {
+ static char mdsinum[48];
+
+ if (oinfo->oi_oa->o_valid & OBD_MD_FLFID)
+ snprintf(mdsinum, sizeof(mdsinum) - 1,
+ "of parent "DFID, oinfo->oi_oa->o_parent_seq,
+ oinfo->oi_oa->o_parent_oid, 0);
+ else
+ mdsinum[0] = '\0';
+
+ CERROR("%s: setattr from %s trying to truncate object "DFID
+ " %s\n", exp->exp_obd->obd_name,
+ obd_export_nid2str(exp), PFID(&info->fti_fid), mdsinum);
+ GOTO(out, rc = -EPERM);
+ }
+
+ fo = ofd_object_find(env, ofd, &info->fti_fid);
+ if (IS_ERR(fo)) {
+ CERROR("%s: can't find object "DFID"\n",
+ exp->exp_obd->obd_name, PFID(&info->fti_fid));
+ GOTO(out, rc = PTR_ERR(fo));
+ }
+
+ la_from_obdo(&info->fti_attr, oinfo->oi_oa, oinfo->oi_oa->o_valid);
+ info->fti_attr.la_valid &= ~LA_TYPE;
+
+ if (oa->o_valid & OBD_MD_FLFID) {
+ ff = &info->fti_mds_fid;
+ ofd_prepare_fidea(ff, oa);
+ }
+
+ /* setting objects attributes (including owner/group) */
+ rc = ofd_attr_set(env, fo, &info->fti_attr, ff);
+ if (rc)
+ GOTO(out_unlock, rc);
+
+ res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
+ if (res != NULL) {
+ ldlm_res_lvbo_update(res, NULL, 0);
+ ldlm_resource_putref(res);
+ }
+
+ oinfo->oi_oa->o_valid = OBD_MD_FLID;
+
+ /* Quota release needs uid/gid info */
+ rc = ofd_attr_get(env, fo, &info->fti_attr);
+ obdo_from_la(oinfo->oi_oa, &info->fti_attr,
+ OFD_VALID_FLAGS | LA_UID | LA_GID);
+ ofd_info2oti(info, oti);
+out_unlock:
+ ofd_object_put(env, fo);
+out:
+ RETURN(rc);
+}
+
+static int ofd_punch(const struct lu_env *env, struct obd_export *exp,
+ struct obd_info *oinfo, struct obd_trans_info *oti,
+ struct ptlrpc_request_set *rqset)
+{
+ struct ofd_thread_info *info;
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ldlm_namespace *ns = ofd->ofd_namespace;
+ struct ldlm_resource *res;
+ struct ofd_object *fo;
+ struct filter_fid *ff = NULL;
+ int rc = 0;
+
+ ENTRY;
+
+ info = ofd_info_init(env, exp);
+ ofd_oti2info(info, oti);
+
+ fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
+ ofd_build_resid(&info->fti_fid, &info->fti_resid);
+
+ CDEBUG(D_INODE, "calling punch for object "DFID", valid = "LPX64
+ ", start = "LPD64", end = "LPD64"\n", PFID(&info->fti_fid),
+ oinfo->oi_oa->o_valid, oinfo->oi_policy.l_extent.start,
+ oinfo->oi_policy.l_extent.end);
+
+ rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
+ oinfo_capa(oinfo), CAPA_OPC_OSS_TRUNC);
+ if (rc)
+ GOTO(out_env, rc);
+
+ fo = ofd_object_find(env, ofd, &info->fti_fid);
+ if (IS_ERR(fo)) {
+ CERROR("%s: error finding object "DFID": rc = %ld\n",
+ exp->exp_obd->obd_name, PFID(&info->fti_fid),
+ PTR_ERR(fo));
+ GOTO(out_env, rc = PTR_ERR(fo));
+ }
+
+ LASSERT(oinfo->oi_policy.l_extent.end == OBD_OBJECT_EOF);
+ if (oinfo->oi_policy.l_extent.end == OBD_OBJECT_EOF) {
+ /* Truncate case */
+ oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.start;
+ } else if (oinfo->oi_policy.l_extent.end >= oinfo->oi_oa->o_size) {
+ oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.end;
+ }
+
+ la_from_obdo(&info->fti_attr, oinfo->oi_oa,
+ OBD_MD_FLMTIME | OBD_MD_FLATIME | OBD_MD_FLCTIME);
+ info->fti_attr.la_valid &= ~LA_TYPE;
+ info->fti_attr.la_size = oinfo->oi_policy.l_extent.start;
+ info->fti_attr.la_valid |= LA_SIZE;
+
+ if (oinfo->oi_oa->o_valid & OBD_MD_FLFID) {
+ ff = &info->fti_mds_fid;
+ ofd_prepare_fidea(ff, oinfo->oi_oa);
+ }
+
+ rc = ofd_object_punch(env, fo, oinfo->oi_policy.l_extent.start,
+ oinfo->oi_policy.l_extent.end, &info->fti_attr,
+ ff);
+ if (rc)
+ GOTO(out, rc);
+
+ res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
+ if (res != NULL) {
+ ldlm_res_lvbo_update(res, NULL, 0);
+ ldlm_resource_putref(res);
+ }
+
+ oinfo->oi_oa->o_valid = OBD_MD_FLID;
+ /* Quota release needs uid/gid info */
+ rc = ofd_attr_get(env, fo, &info->fti_attr);
+ obdo_from_la(oinfo->oi_oa, &info->fti_attr,
+ OFD_VALID_FLAGS | LA_UID | LA_GID);
+ ofd_info2oti(info, oti);
+out:
+ ofd_object_put(env, fo);
+out_env:
+ RETURN(rc);
+}
+
+static int ofd_destroy_by_fid(const struct lu_env *env,
+ struct ofd_device *ofd,
+ const struct lu_fid *fid, int orphan)
+{
+ struct ofd_thread_info *info = ofd_info(env);
+ struct lustre_handle lockh;
+ int flags = LDLM_AST_DISCARD_DATA, rc = 0;
+ ldlm_policy_data_t policy = {
+ .l_extent = { 0, OBD_OBJECT_EOF }
+ };
+ struct ofd_object *fo;
+
+ ENTRY;
+
+ /* Tell the clients that the object is gone now and that they should
+ * throw away any cached pages. */
+ ofd_build_resid(fid, &info->fti_resid);
+ rc = ldlm_cli_enqueue_local(ofd->ofd_namespace, &info->fti_resid,
+ LDLM_EXTENT, &policy, LCK_PW, &flags,
+ ldlm_blocking_ast, ldlm_completion_ast,
+ NULL, NULL, 0, NULL, &lockh);
+
+ /* We only care about the side-effects, just drop the lock. */
+ if (rc == ELDLM_OK)
+ ldlm_lock_decref(&lockh, LCK_PW);
+
+ fo = ofd_object_find(env, ofd, fid);
+ if (IS_ERR(fo))
+ RETURN(PTR_ERR(fo));
+ LASSERT(fo != NULL);
+
+ rc = ofd_object_destroy(env, fo, orphan);
+
+ ofd_object_put(env, fo);
+ RETURN(rc);
+}
+
+int ofd_destroy(const struct lu_env *env, struct obd_export *exp,
+ struct obdo *oa, struct lov_stripe_md *md,
+ struct obd_trans_info *oti, struct obd_export *md_exp,
+ void *capa)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ofd_thread_info *info;
+ obd_count count;
+ int rc = 0;
+
+ ENTRY;
+
+ info = ofd_info_init(env, exp);
+ ofd_oti2info(info, oti);
+
+ if (!(oa->o_valid & OBD_MD_FLGROUP))
+ oa->o_seq = 0;
+
+ /* check that o_misc makes sense */
+ if (oa->o_valid & OBD_MD_FLOBJCOUNT)
+ count = oa->o_misc;
+ else
+ count = 1; /* default case - single destroy */
+
+ /**
+ * There can be sequence of objects to destroy. Therefore this request
+ * may have multiple transaction involved in. It is OK, we need only
+ * the highest used transno to be reported back in reply but not for
+ * replays, they must report their transno
+ */
+ if (info->fti_transno == 0) /* not replay */
+ info->fti_mult_trans = 1;
+ while (count > 0) {
+ int lrc;
+
+ fid_ostid_unpack(&info->fti_fid, &oa->o_oi, 0);
+ lrc = ofd_destroy_by_fid(env, ofd, &info->fti_fid, 0);
+ if (lrc == -ENOENT) {
+ CDEBUG(D_INODE,
+ "destroying non-existent object "LPU64"\n",
+ oa->o_id);
+ /* rewrite rc with -ENOENT only if it is 0 */
+ if (rc == 0)
+ rc = lrc;
+ } else if (lrc != 0) {
+ CEMERG("error destroying object "LPU64": %d\n",
+ oa->o_id, rc);
+ rc = lrc;
+ }
+ count--;
+ oa->o_id++;
+ }
+
+ /* if we have transaction then there were some deletions, we don't
+ * need to return ENOENT in that case because it will not wait
+ * for commit of these deletions. The ENOENT must be returned only
+ * if there were no transations.
+ */
+ if (rc == -ENOENT) {
+ if (info->fti_transno != 0)
+ rc = 0;
+ } else if (rc != 0) {
+ /*
+ * If we have at least one transaction then llog record
+ * on server will be removed upon commit, so for rc != 0
+ * we return no transno and llog record will be reprocessed.
+ */
+ info->fti_transno = 0;
+ }
+ ofd_info2oti(info, oti);
+ 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);
+ obd_id last;
+ int skip_orphan;
+ int rc = 0;
+ struct ost_id oi = oa->o_oi;
+
+ ENTRY;
+
+ LASSERT(exp != NULL);
+ skip_orphan = !!(exp->exp_connect_flags & OBD_CONNECT_SKIP_ORPHAN);
+
+ last = ofd_last_id(ofd, oa->o_seq);
+ CWARN("%s: deleting orphan objects from "LPU64" to "LPU64"\n",
+ ofd_obd(ofd)->obd_name, oa->o_id + 1, last);
+
+ for (oi.oi_id = last; oi.oi_id > oa->o_id; oi.oi_id--) {
+ fid_ostid_unpack(&info->fti_fid, &oi, 0);
+ rc = ofd_destroy_by_fid(env, ofd, &info->fti_fid, 1);
+ if (rc && rc != -ENOENT) /* this is pretty fatal... */
+ CEMERG("error destroying precreated id "LPU64": %d\n",
+ oi.oi_id, rc);
+ if (!skip_orphan) {
+ ofd_last_id_set(ofd, oi.oi_id - 1, oa->o_seq);
+ /* 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 ((oi.oi_id & 511) == 0)
+ ofd_last_id_write(env, ofd, oa->o_seq);
+ }
+ }
+ CDEBUG(D_HA, "%s: after destroy: set last_objids["LPU64"] = "LPU64"\n",
+ ofd_obd(ofd)->obd_name, oa->o_seq, oa->o_id);
+ if (!skip_orphan) {
+ rc = ofd_last_id_write(env, ofd, oa->o_seq);
+ } else {
+ /* don't reuse orphan object, return last used objid */
+ oa->o_id = last;
+ rc = 0;
+ }
+ RETURN(rc);
+}
+
+int ofd_create(const struct lu_env *env, struct obd_export *exp,
+ struct obdo *oa, struct lov_stripe_md **ea,
+ struct obd_trans_info *oti)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ofd_thread_info *info;
+ int rc = 0, diff;
+
+ ENTRY;
+
+ info = ofd_info_init(env, exp);
+ ofd_oti2info(info, oti);
+
+ LASSERT(oa->o_seq >= FID_SEQ_OST_MDT0);
+ LASSERT(oa->o_valid & OBD_MD_FLGROUP);
+
+ CDEBUG(D_INFO, "ofd_create(oa->o_seq="LPU64",oa->o_id="LPU64")\n",
+ oa->o_seq, oa->o_id);
+
+ if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+ (oa->o_flags & OBD_FL_RECREATE_OBJS)) {
+ if (!ofd_obd(ofd)->obd_recovering ||
+ oa->o_id > ofd_last_id(ofd, oa->o_seq)) {
+ CERROR("recreate objid "LPU64" > last id "LPU64"\n",
+ oa->o_id, ofd_last_id(ofd, oa->o_seq));
+ GOTO(out, rc = -EINVAL);
+ }
+ /* do nothing because we create objects during first write */
+ GOTO(out, rc = 0);
+ }
+ /* former ofd_handle_precreate */
+ if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+ (oa->o_flags & OBD_FL_DELORPHAN)) {
+ /* destroy orphans */
+ if (oti->oti_conn_cnt < exp->exp_conn_cnt) {
+ CERROR("%s: dropping old orphan cleanup request\n",
+ ofd_obd(ofd)->obd_name);
+ GOTO(out, rc = 0);
+ }
+ /* This causes inflight precreates to abort and drop lock */
+ cfs_set_bit(oa->o_seq, &ofd->ofd_destroys_in_progress);
+ cfs_mutex_lock(&ofd->ofd_create_locks[oa->o_seq]);
+ if (!cfs_test_bit(oa->o_seq, &ofd->ofd_destroys_in_progress)) {
+ CERROR("%s:["LPU64"] destroys_in_progress already cleared\n",
+ exp->exp_obd->obd_name, oa->o_seq);
+ GOTO(out, rc = 0);
+ }
+ diff = oa->o_id - ofd_last_id(ofd, oa->o_seq);
+ CDEBUG(D_HA, "ofd_last_id() = "LPU64" -> diff = %d\n",
+ ofd_last_id(ofd, oa->o_seq), diff);
+ if (-diff > OST_MAX_PRECREATE) {
+ /* FIXME: should reset precreate_next_id on MDS */
+ rc = 0;
+ } else if (diff < 0) {
+ rc = ofd_orphans_destroy(env, exp, ofd, oa);
+ cfs_clear_bit(oa->o_seq, &ofd->ofd_destroys_in_progress);
+ } else {
+ /* XXX: Used by MDS for the first time! */
+ cfs_clear_bit(oa->o_seq, &ofd->ofd_destroys_in_progress);
+ }
+ } else {
+ cfs_mutex_lock(&ofd->ofd_create_locks[oa->o_seq]);
+ if (oti->oti_conn_cnt < exp->exp_conn_cnt) {
+ CERROR("%s: dropping old precreate request\n",
+ ofd_obd(ofd)->obd_name);
+ GOTO(out, rc = 0);
+ }
+ /* only precreate if group == 0 and o_id is specfied */
+ if (!fid_seq_is_mdt(oa->o_seq) || oa->o_id == 0) {
+ diff = 1; /* shouldn't we create this right now? */
+ } else {
+ diff = oa->o_id - ofd_last_id(ofd, oa->o_seq);
+ }
+ }
+ if (diff > 0) {
+ obd_id next_id = ofd_last_id(ofd, oa->o_seq) + 1;
+ int i;
+
+ if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
+ !(oa->o_flags & OBD_FL_DELORPHAN)) {
+ /* don't enforce grant during orphan recovery */
+ rc = ofd_grant_create(env,
+ ofd_obd(ofd)->obd_self_export,
+ &diff);
+ if (rc) {
+ CDEBUG(D_HA, "%s: failed to acquire grant space"
+ "for precreate (%d)\n",
+ ofd_obd(ofd)->obd_name, diff);
+ diff = 0;
+ }
+ }
+
+ CDEBUG(D_HA,
+ "%s: reserve %d objects in group "LPU64" at "LPU64"\n",
+ ofd_obd(ofd)->obd_name, diff, oa->o_seq, next_id);
+ for (i = 0; i < diff; i++) {
+ rc = ofd_precreate_object(env, ofd, next_id + i,
+ oa->o_seq);
+ if (rc)
+ break;
+ }
+ if (i > 0) {
+ /* some objects got created, we can return
+ * them, even if last creation failed */
+ oa->o_id = ofd_last_id(ofd, oa->o_seq);
+ rc = 0;
+ } else {
+ CERROR("unable to precreate: %d\n", rc);
+ oa->o_id = ofd_last_id(ofd, oa->o_seq);
+ }
+
+ oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
+
+ if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
+ !(oa->o_flags & OBD_FL_DELORPHAN))
+ ofd_grant_commit(env, ofd_obd(ofd)->obd_self_export,
+ rc);
+ }
+
+ ofd_info2oti(info, oti);
+out:
+ cfs_mutex_unlock(&ofd->ofd_create_locks[oa->o_seq]);
+ if (rc == 0 && ea != NULL) {
+ struct lov_stripe_md *lsm = *ea;
+
+ lsm->lsm_object_id = oa->o_id;
+ }
+ return rc;
+}
+
+int ofd_getattr(const struct lu_env *env, struct obd_export *exp,
+ struct obd_info *oinfo)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ofd_thread_info *info;
+ struct ofd_object *fo;
+ __u64 curr_version;
+ int rc = 0;
+
+ ENTRY;
+
+ info = ofd_info_init(env, exp);
+
+ fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
+ rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
+ oinfo_capa(oinfo), CAPA_OPC_META_READ);
+ if (rc)
+ GOTO(out, rc);
+
+ fo = ofd_object_find(env, ofd, &info->fti_fid);
+ if (IS_ERR(fo))
+ GOTO(out, rc = PTR_ERR(fo));
+ LASSERT(fo != NULL);
+ rc = ofd_attr_get(env, fo, &info->fti_attr);
+ oinfo->oi_oa->o_valid = OBD_MD_FLID;
+ if (rc == 0)
+ obdo_from_la(oinfo->oi_oa, &info->fti_attr,
+ OFD_VALID_FLAGS | LA_UID | LA_GID);
+
+ /* Store object version in reply */
+ curr_version = dt_version_get(env, ofd_object_child(fo));
+ if ((__s64)curr_version != -EOPNOTSUPP) {
+ oinfo->oi_oa->o_valid |= OBD_MD_FLDATAVERSION;
+ oinfo->oi_oa->o_data_version = curr_version;
+ }
+ ofd_object_put(env, fo);
+out:
+ RETURN(rc);
+}
+