+
+static int llog_catinfo_config(struct obd_device *obd, char *buf, int buf_len,
+ char *client)
+{
+ struct mds_obd *mds = &obd->u.mds;
+ struct llog_ctxt *ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
+ struct lvfs_run_ctxt saved;
+ struct llog_handle *handle = NULL;
+ char name[4][64];
+ int rc, i, l, remains = buf_len;
+ char *out = buf;
+ ENTRY;
+
+ if (ctxt == NULL || mds == NULL)
+ GOTO(release_ctxt, rc = -ENODEV);
+
+ push_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
+
+ sprintf(name[0], "%s", mds->mds_profile);
+ sprintf(name[1], "%s-clean", mds->mds_profile);
+ sprintf(name[2], "%s", client);
+ sprintf(name[3], "%s-clean", client);
+
+ for (i = 0; i < 4; i++) {
+ int index, uncanceled = 0;
+ rc = llog_create(ctxt, &handle, NULL, name[i]);
+ 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(out, remains, "[Log Name]: %s\nLog Size: %llu\n"
+ "Last Index: %d\nUncanceled Records: %d\n\n",
+ name[i],
+ i_size_read(handle->lgh_file->f_dentry->d_inode),
+ handle->lgh_last_idx, uncanceled);
+ out += l;
+ remains -= l;
+
+ llog_close(handle);
+ if (remains <= 0)
+ break;
+ }
+ GOTO(out_pop, rc);
+out_pop:
+ pop_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
+release_ctxt:
+ llog_ctxt_put(ctxt);
+ return rc;
+}
+
+struct cb_data {
+ struct llog_ctxt *ctxt;
+ char *out;
+ int remains;
+ int init;
+};
+
+static int llog_catinfo_cb(struct llog_handle *cat,
+ struct llog_rec_hdr *rec, void *data)
+{
+ static char *out = NULL;
+ static int remains = 0;
+ struct llog_ctxt *ctxt = NULL;
+ struct llog_handle *handle;
+ struct llog_logid *logid;
+ struct llog_logid_rec *lir;
+ int l, rc, index, count = 0;
+ struct cb_data *cbd = (struct cb_data*)data;
+ ENTRY;
+
+ if (cbd->init) {
+ out = cbd->out;
+ remains = cbd->remains;
+ cbd->init = 0;
+ }
+
+ if (!(cat->lgh_hdr->llh_flags & LLOG_F_IS_CAT))
+ RETURN(-EINVAL);
+
+ if (!cbd->ctxt)
+ RETURN(-ENODEV);
+
+ lir = (struct llog_logid_rec *)rec;
+ logid = &lir->lid_id;
+ rc = llog_create(ctxt, &handle, logid, NULL);
+ if (rc)
+ RETURN(-EINVAL);
+ rc = llog_init_handle(handle, 0, NULL);
+ if (rc)
+ GOTO(out_close, rc);
+
+ for (index = 1; index < (LLOG_BITMAP_BYTES * 8); index++) {
+ if (ext2_test_bit(index, handle->lgh_hdr->llh_bitmap))
+ count++;
+ }
+
+ l = snprintf(out, remains, "\t[Log ID]: #"LPX64"#"LPX64"#%08x\n"
+ "\tLog Size: %llu\n\tLast Index: %d\n"
+ "\tUncanceled Records: %d\n",
+ logid->lgl_oid, logid->lgl_ogr, logid->lgl_ogen,
+ i_size_read(handle->lgh_file->f_dentry->d_inode),
+ handle->lgh_last_idx, count);
+ out += l;
+ remains -= l;
+ cbd->out = out;
+ cbd->remains = remains;
+ if (remains <= 0) {
+ CWARN("Not enough memory\n");
+ rc = -ENOMEM;
+ }
+ EXIT;
+out_close:
+ llog_close(handle);
+ return rc;
+}
+
+static int llog_catinfo_deletions(struct obd_device *obd, char *buf,
+ int buf_len)
+{
+ struct mds_obd *mds = &obd->u.mds;
+ struct llog_handle *handle;
+ struct lvfs_run_ctxt saved;
+ int size, i, count;
+ struct llog_catid *idarray;
+ char name[32] = CATLIST;
+ struct cb_data data;
+ struct llog_ctxt *ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
+ int rc;
+ ENTRY;
+
+ if (ctxt == NULL || mds == NULL)
+ GOTO(release_ctxt, rc = -ENODEV);
+
+ count = mds->mds_lov_desc.ld_tgt_count;
+ size = sizeof(*idarray) * count;
+
+ OBD_VMALLOC(idarray, size);
+ if (!idarray)
+ GOTO(release_ctxt, rc = -ENOMEM);
+
+ cfs_mutex_down(&obd->obd_olg.olg_cat_processing);
+ rc = llog_get_cat_list(obd, name, 0, count, idarray);
+ if (rc)
+ GOTO(out_free, rc);
+
+ push_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
+
+ data.ctxt = ctxt;
+ data.out = buf;
+ data.remains = buf_len;
+ for (i = 0; i < count; i++) {
+ int l, index, uncanceled = 0;
+
+ rc = llog_create(ctxt, &handle, &idarray[i].lci_logid, 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",
+ idarray[i].lci_logid.lgl_oid,
+ idarray[i].lci_logid.lgl_ogr,
+ idarray[i].lci_logid.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;
+ }
+ EXIT;
+out_pop:
+ pop_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
+out_free:
+ cfs_mutex_up(&obd->obd_olg.olg_cat_processing);
+ OBD_VFREE(idarray, size);
+release_ctxt:
+ llog_ctxt_put(ctxt);
+ 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;
+ ENTRY;
+
+ OBD_ALLOC(buf, LLOG_CHUNK_SIZE);
+ if (buf == NULL)
+ RETURN(-ENOMEM);
+
+ memset(buf, 0, LLOG_CHUNK_SIZE);
+
+ keyword = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
+ LASSERT(keyword);
+
+ if (strcmp(keyword, "config") == 0) {
+ char *client = req_capsule_client_get(&req->rq_pill,
+ &RMF_STRING);
+
+ LASSERT(client);
+ rc = llog_catinfo_config(obd, buf, LLOG_CHUNK_SIZE, client);
+ } else if (strcmp(keyword, "deletions") == 0) {
+ rc = llog_catinfo_deletions(obd, buf, LLOG_CHUNK_SIZE);
+ } else {
+ rc = -EOPNOTSUPP;
+ }
+
+ req_capsule_set_size(&req->rq_pill, &RMF_STRING, RCL_SERVER,
+ LLOG_CHUNK_SIZE);
+ rc = req_capsule_server_pack(&req->rq_pill);
+ if (rc)
+ GOTO(out_free, rc = -ENOMEM);
+
+ reply = req_capsule_server_get(&req->rq_pill, &RMF_STRING);
+ if (strlen(buf) == 0)
+ sprintf(buf, "%s", "No log informations\n");
+ memcpy(reply, buf, LLOG_CHUNK_SIZE);
+ EXIT;
+out_free:
+ OBD_FREE(buf, LLOG_CHUNK_SIZE);
+ return rc;
+}
+
+#else /* !__KERNEL__ */
+int llog_origin_handle_create(struct ptlrpc_request *req)
+{
+ LBUG();
+ return 0;
+}
+
+int llog_origin_handle_destroy(struct ptlrpc_request *req)
+{
+ LBUG();
+ return 0;
+}
+
+int llog_origin_handle_next_block(struct ptlrpc_request *req)
+{
+ LBUG();
+ return 0;
+}
+int llog_origin_handle_prev_block(struct ptlrpc_request *req)
+{
+ LBUG();
+ return 0;
+}
+int llog_origin_handle_read_header(struct ptlrpc_request *req)
+{
+ LBUG();
+ return 0;
+}
+int llog_origin_handle_close(struct ptlrpc_request *req)
+{
+ LBUG();
+ return 0;
+}
+int llog_origin_handle_cancel(struct ptlrpc_request *req)
+{
+ LBUG();
+ return 0;
+}