+int llog_cat_declare_add_rec(const struct lu_env *env,
+ struct llog_handle *cathandle,
+ struct llog_rec_hdr *rec, struct thandle *th)
+{
+ struct llog_thread_info *lgi = llog_info(env);
+ struct llog_logid_rec *lirec = &lgi->lgi_logid;
+ struct llog_handle *loghandle, *next;
+ int rc = 0;
+
+ ENTRY;
+
+ if (cathandle->u.chd.chd_current_log == NULL) {
+ /* declare new plain llog */
+ down_write(&cathandle->lgh_lock);
+ if (cathandle->u.chd.chd_current_log == NULL) {
+ rc = llog_open(env, cathandle->lgh_ctxt, &loghandle,
+ NULL, NULL, LLOG_OPEN_NEW);
+ if (rc == 0) {
+ cathandle->u.chd.chd_current_log = loghandle;
+ cfs_list_add_tail(&loghandle->u.phd.phd_entry,
+ &cathandle->u.chd.chd_head);
+ }
+ }
+ up_write(&cathandle->lgh_lock);
+ } else if (cathandle->u.chd.chd_next_log == NULL) {
+ /* declare next plain llog */
+ down_write(&cathandle->lgh_lock);
+ if (cathandle->u.chd.chd_next_log == NULL) {
+ rc = llog_open(env, cathandle->lgh_ctxt, &loghandle,
+ NULL, NULL, LLOG_OPEN_NEW);
+ if (rc == 0) {
+ cathandle->u.chd.chd_next_log = loghandle;
+ cfs_list_add_tail(&loghandle->u.phd.phd_entry,
+ &cathandle->u.chd.chd_head);
+ }
+ }
+ up_write(&cathandle->lgh_lock);
+ }
+ if (rc)
+ GOTO(out, rc);
+
+ lirec->lid_hdr.lrh_len = sizeof(*lirec);
+
+ if (!llog_exist(cathandle->u.chd.chd_current_log)) {
+ rc = llog_declare_create(env, cathandle->u.chd.chd_current_log,
+ th);
+ if (rc)
+ GOTO(out, rc);
+ llog_declare_write_rec(env, cathandle, &lirec->lid_hdr, -1, th);
+ }
+ /* declare records in the llogs */
+ rc = llog_declare_write_rec(env, cathandle->u.chd.chd_current_log,
+ rec, -1, th);
+ if (rc)
+ GOTO(out, rc);
+
+ next = cathandle->u.chd.chd_next_log;
+ if (next) {
+ if (!llog_exist(next)) {
+ rc = llog_declare_create(env, next, th);
+ llog_declare_write_rec(env, cathandle, &lirec->lid_hdr,
+ -1, th);
+ }
+ /* XXX: we hope for declarations made for existing llog
+ * this might be not correct with some backends
+ * where declarations are expected against specific
+ * object like ZFS with full debugging enabled */
+ /*llog_declare_write_rec(env, next, rec, -1, th);*/
+ }
+out:
+ RETURN(rc);
+}
+EXPORT_SYMBOL(llog_cat_declare_add_rec);
+
+int llog_cat_add(const struct lu_env *env, struct llog_handle *cathandle,
+ struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
+ void *buf)
+{
+ struct llog_ctxt *ctxt;
+ struct dt_device *dt;
+ struct thandle *th = NULL;
+ int rc;
+
+ ctxt = cathandle->lgh_ctxt;
+ LASSERT(ctxt);
+ LASSERT(ctxt->loc_exp);
+
+ LASSERT(cathandle->lgh_obj != NULL);
+ dt = lu2dt_dev(cathandle->lgh_obj->do_lu.lo_dev);
+
+ th = dt_trans_create(env, dt);
+ if (IS_ERR(th))
+ RETURN(PTR_ERR(th));
+
+ rc = llog_cat_declare_add_rec(env, cathandle, rec, th);
+ if (rc)
+ GOTO(out_trans, rc);
+
+ rc = dt_trans_start_local(env, dt, th);
+ if (rc)
+ GOTO(out_trans, rc);
+ rc = llog_cat_add_rec(env, cathandle, rec, reccookie, buf, th);
+out_trans:
+ dt_trans_stop(env, dt, th);
+ RETURN(rc);
+}
+EXPORT_SYMBOL(llog_cat_add);
+