fts_sync_table(), fts_sync() dead code removal

fts_sync(): Remove the constant parameter has_dict=false.

fts_sync_table(): Remove the constant parameter has_dict=false,
and the redundant parameter unlock_cache = !wait.
Make wait=true the default parameter.

storage/innobase/fts/fts0fts.cc

@@ -194,15 +194,13 @@ FTS auxiliary INDEX table and clear the cache at the end.
 @param[in,out]	sync		sync state
 @param[in]	unlock_cache	whether unlock cache lock when write node
 @param[in]	wait		whether wait when a sync is in progress
-@param[in]	has_dict	whether has dict operation lock
 @return DB_SUCCESS if all OK */
 static
 dberr_t
 fts_sync(
 	fts_sync_t*	sync,
 	bool		unlock_cache,
-	bool		wait,
-	bool		has_dict);
+	bool		wait);
 
 /****************************************************************//**
 Release all resources help by the words rb tree e.g., the node ilist. */
@@ -3424,7 +3422,7 @@ fts_add_doc_from_tuple(
 
                        if (cache->total_size > fts_max_cache_size / 5
                            || fts_need_sync) {
-                               fts_sync(cache->sync, true, false, false);
+                               fts_sync(cache->sync, true, false);
                        }
 
                        mtr_start(&mtr);
@@ -3602,7 +3600,7 @@ fts_add_doc_by_id(
 
 				DBUG_EXECUTE_IF(
 					"fts_instrument_sync_debug",
-					fts_sync(cache->sync, true, true, false);
+					fts_sync(cache->sync, true, true);
 				);
 
 				DEBUG_SYNC_C("fts_instrument_sync_request");
@@ -4309,15 +4307,13 @@ FTS auxiliary INDEX table and clear the cache at the end.
 @param[in,out]	sync		sync state
 @param[in]	unlock_cache	whether unlock cache lock when write node
 @param[in]	wait		whether wait when a sync is in progress
-@param[in]	has_dict	whether has dict operation lock
 @return DB_SUCCESS if all OK */
 static
 dberr_t
 fts_sync(
 	fts_sync_t*	sync,
 	bool		unlock_cache,
-	bool		wait,
-	bool		has_dict)
+	bool		wait)
 {
 	if (srv_read_only_mode) {
 		return DB_READ_ONLY;
@@ -4350,12 +4346,6 @@ fts_sync(
 	DEBUG_SYNC_C("fts_sync_begin");
 	fts_sync_begin(sync);
 
-	/* When sync in background, we hold dict operation lock
-	to prevent DDL like DROP INDEX, etc. */
-	if (has_dict) {
-		sync->trx->dict_operation_lock_mode = RW_S_LATCH;
-	}
-
 begin_sync:
 	if (cache->total_size > fts_max_cache_size) {
 		/* Avoid the case: sync never finish when
@@ -4446,16 +4436,9 @@ fts_sync(
 /** Run SYNC on the table, i.e., write out data from the cache to the
 FTS auxiliary INDEX table and clear the cache at the end.
 @param[in,out]	table		fts table
-@param[in]	unlock_cache	whether unlock cache when write node
 @param[in]	wait		whether wait for existing sync to finish
-@param[in]	has_dict	whether has dict operation lock
 @return DB_SUCCESS on success, error code on failure. */
-dberr_t
-fts_sync_table(
-	dict_table_t*	table,
-	bool		unlock_cache,
-	bool		wait,
-	bool		has_dict)
+dberr_t fts_sync_table(dict_table_t* table, bool wait)
 {
 	dberr_t	err = DB_SUCCESS;
 
@@ -4463,8 +4446,7 @@ fts_sync_table(
 
 	if (!dict_table_is_discarded(table) && table->fts->cache
 	    && !dict_table_is_corrupted(table)) {
-		err = fts_sync(table->fts->cache->sync,
-			       unlock_cache, wait, has_dict);
+		err = fts_sync(table->fts->cache->sync, !wait, wait);
 	}
 
 	return(err);

storage/innobase/fts/fts0opt.cc

@@ -2773,7 +2773,7 @@ static void fts_optimize_sync_table(table_id_t table_id)
 		    table_id, FALSE, DICT_TABLE_OP_NORMAL)) {
 		if (fil_table_accessible(table)
 		    && table->fts && table->fts->cache) {
-			fts_sync_table(table, true, false, false);
+			fts_sync_table(table, false);
 		}
 
 		dict_table_close(table, FALSE, FALSE);

storage/innobase/handler/ha_innodb.cc

@@ -14726,7 +14726,7 @@ ha_innobase::optimize(
 	if (innodb_optimize_fulltext_only) {
 		if (m_prebuilt->table->fts && m_prebuilt->table->fts->cache
 		    && !dict_table_is_discarded(m_prebuilt->table)) {
-			fts_sync_table(m_prebuilt->table, false, true, false);
+			fts_sync_table(m_prebuilt->table);
 			fts_optimize_table(m_prebuilt->table);
 		}
 		try_alter = false;

storage/innobase/include/fts0fts.h

@@ -781,16 +781,9 @@ fts_drop_orphaned_tables(void);
 /** Run SYNC on the table, i.e., write out data from the cache to the
 FTS auxiliary INDEX table and clear the cache at the end.
 @param[in,out]	table		fts table
-@param[in]	unlock_cache	whether unlock cache when write node
-@param[in]	wait		whether wait for existing sync to finish
-@param[in]      has_dict        whether has dict operation lock
+@param[in]	wait		whether to wait for existing sync to finish
 @return DB_SUCCESS on success, error code on failure. */
-dberr_t
-fts_sync_table(
-	dict_table_t*	table,
-	bool		unlock_cache,
-	bool		wait,
-	bool		has_dict);
+dberr_t fts_sync_table(dict_table_t* table, bool wait = true);
 
 /****************************************************************//**
 Free the query graph but check whether dict_sys->mutex is already

storage/innobase/row/row0merge.cc

@@ -2730,8 +2730,7 @@ row_merge_read_clustered_index(
 	if (max_doc_id && err == DB_SUCCESS) {
 		/* Sync fts cache for other fts indexes to keep all
 		fts indexes consistent in sync_doc_id. */
-		err = fts_sync_table(const_cast<dict_table_t*>(new_table),
-				     false, true, false);
+		err = fts_sync_table(const_cast<dict_table_t*>(new_table));
 
 		if (err == DB_SUCCESS) {
 			fts_update_next_doc_id(NULL, new_table, max_doc_id);

storage/innobase/srv/srv0start.cc

@@ -2759,36 +2759,6 @@ innobase_start_or_create_for_mysql()
 	return(DB_SUCCESS);
 }
 
-#if 0
-/********************************************************************
-Sync all FTS cache before shutdown */
-static
-void
-srv_fts_close(void)
-/*===============*/
-{
-	dict_table_t*	table;
-
-	for (table = UT_LIST_GET_FIRST(dict_sys->table_LRU);
-	     table; table = UT_LIST_GET_NEXT(table_LRU, table)) {
-		fts_t*          fts = table->fts;
-
-		if (fts != NULL) {
-			fts_sync_table(table);
-		}
-	}
-
-	for (table = UT_LIST_GET_FIRST(dict_sys->table_non_LRU);
-	     table; table = UT_LIST_GET_NEXT(table_LRU, table)) {
-		fts_t*          fts = table->fts;
-
-		if (fts != NULL) {
-			fts_sync_table(table);
-		}
-	}
-}
-#endif
-
 /** Shut down background threads that can generate undo log. */
 void
 srv_shutdown_bg_undo_sources()