- struct mds_obd *mds = &obd->u.mds;
- struct llog_handle *handle;
- struct obd_run_ctxt saved;
- int size, i, count;
- struct llog_catid *idarray;
- struct llog_logid *id;
- char name[32] = CATLIST;
- int rc;
- struct cb_data data;
- struct llog_ctxt *ctxt = llog_get_context(&obd->obd_llogs, LLOG_CONFIG_ORIG_CTXT);
-
- if (ctxt == NULL || mds == NULL)
- RETURN(-EOPNOTSUPP);
-
- count = mds->mds_lov_desc.ld_tgt_count;
- size = sizeof(*idarray) * count;
-
- OBD_ALLOC(idarray, size);
- if (!idarray)
- RETURN(-ENOMEM);
-
- rc = llog_get_cat_list(obd, obd, name, count, idarray);
- if (rc)
- GOTO(out_free, rc);
-
- push_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_ctxt, NULL);
-
- data.ctxt = ctxt;
- data.out = buf;
- data.remains = buf_len;
- for (i = 0; i < count; i++) {
- int l, index, uncanceled = 0;
-
- id = &idarray[i].lci_logid;
- rc = llog_create(ctxt, &handle, id, NULL);
- if (rc)
- GOTO(out_pop, rc);
- rc = llog_init_handle(handle, 0, NULL);
- if (rc) {
- llog_close(handle);
- GOTO(out_pop, rc = -ENOENT);
- }
- for (index = 1; index < (LLOG_BITMAP_BYTES * 8); index++) {
- if (ext2_test_bit(index, handle->lgh_hdr->llh_bitmap))
- uncanceled++;
- }
- l = snprintf(data.out, data.remains,
- "\n[Catlog ID]: #"LPX64"#"LPX64"#%08x "
- "[Log Count]: %d\n",
- id->lgl_oid, id->lgl_ogr, id->lgl_ogen,
- uncanceled);
-
- data.out += l;
- data.remains -= l;
- data.init = 1;
-
- llog_process(handle, llog_catinfo_cb, &data, NULL);
- llog_close(handle);
-
- if (data.remains <= 0)
- break;
- }
-out_pop:
- pop_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_ctxt, NULL);
-out_free:
- OBD_FREE(idarray, size);
- RETURN(rc);
-}
-
-int llog_catinfo(struct ptlrpc_request *req)
-{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
- char *keyword;
- char *buf, *reply;
- int rc, buf_len = LLOG_CHUNK_SIZE;
-
- OBD_ALLOC(buf, buf_len);
- if (buf == NULL)
- return -ENOMEM;
- memset(buf, 0, buf_len);
-
- keyword = lustre_msg_string(req->rq_reqmsg, 0, 0);
-
- if (strcmp(keyword, "config") == 0) {
- char *client = lustre_msg_string(req->rq_reqmsg, 1, 0);
- rc = llog_catinfo_config(obd, buf, buf_len, client);
- } else if (strcmp(keyword, "deletions") == 0) {
- rc = llog_catinfo_deletions(obd, buf, buf_len);
- } else {
- rc = -EOPNOTSUPP;
- }
-
- rc = lustre_pack_reply(req, 1, &buf_len, NULL);
- if (rc)
- GOTO(out_free, rc = -ENOMEM);
-
- reply = lustre_msg_buf(req->rq_repmsg, 0, buf_len);
- if (strlen(buf) == 0)
- sprintf(buf, "%s", "No log informations\n");
- memcpy(reply, buf, buf_len);
-
-out_free:
- OBD_FREE(buf, buf_len);
- return rc;
+ struct llog_handle *loghandle;
+ struct llogd_body *body;
+ struct llogd_body *repbody;
+ struct llog_ctxt *ctxt;
+ __u32 flags;
+ void *ptr;
+ int rc;
+
+ ENTRY;
+
+ body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
+ if (body == NULL)
+ RETURN(err_serious(-EFAULT));
+
+ req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER,
+ LLOG_MIN_CHUNK_SIZE);
+ rc = req_capsule_server_pack(&req->rq_pill);
+ if (rc)
+ RETURN(err_serious(-ENOMEM));
+
+ if (body->lgd_ctxt_idx >= LLOG_MAX_CTXTS) {
+ CDEBUG(D_WARNING, "%s: bad ctxt ID: idx=%d\n",
+ req->rq_export->exp_obd->obd_name, body->lgd_ctxt_idx);
+ RETURN(-EPROTO);
+ }
+
+ ctxt = llog_get_context(req->rq_export->exp_obd, body->lgd_ctxt_idx);
+ if (ctxt == NULL)
+ RETURN(-ENODEV);
+
+ rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle,
+ &body->lgd_logid, NULL, LLOG_OPEN_EXISTS);
+ if (rc)
+ GOTO(out_ctxt, rc);
+
+ flags = body->lgd_llh_flags;
+ rc = llog_init_handle(req->rq_svc_thread->t_env, loghandle, flags,
+ NULL);
+ if (rc)
+ GOTO(out_close, rc);
+
+ repbody = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
+ *repbody = *body;
+
+ ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
+ rc = llog_prev_block(req->rq_svc_thread->t_env, loghandle,
+ body->lgd_index, ptr, LLOG_MIN_CHUNK_SIZE);
+ if (rc)
+ GOTO(out_close, rc);
+
+ EXIT;
+out_close:
+ llog_origin_close(req->rq_svc_thread->t_env, loghandle);
+out_ctxt:
+ llog_ctxt_put(ctxt);
+ return rc;