Post-merge fixes: make rocksdb.use_direct_reads_writes pass

storage/rocksdb/mysql-test/rocksdb/r/use_direct_reads_writes.result

+call mtr.add_suppression("rocksdb");
+call mtr.add_suppression("Aborting");
+# This shows that RocksDB plugin is loaded:
+select plugin_name, plugin_type from information_schema.plugins where plugin_name='RocksDB';
+plugin_name	plugin_type
+ROCKSDB	STORAGE ENGINE
 Checking direct reads
+FOUND 1 /enable both use_direct_reads/ in use_direct_reads_writes.err
 Checking direct writes
+FOUND 1 /enable both use_direct_io_for_flush_and_compaction/ in use_direct_reads_writes.err
 Checking rocksdb_flush_log_at_trx_commit
+FOUND 1 /rocksdb_flush_log_at_trx_commit needs to be/ in use_direct_reads_writes.err
 Validate flush_log settings when direct writes is enabled
 set global rocksdb_flush_log_at_trx_commit=0;
 set global rocksdb_flush_log_at_trx_commit=1;
 ERROR 42000: Variable 'rocksdb_flush_log_at_trx_commit' can't be set to the value of '1'
 set global rocksdb_flush_log_at_trx_commit=2;
 ERROR 42000: Variable 'rocksdb_flush_log_at_trx_commit' can't be set to the value of '2'
-call mtr.add_suppression("rocksdb");
-call mtr.add_suppression("Aborting");
-# This shows that RocksDB plugin is loaded:
-select plugin_name, plugin_type from information_schema.plugins where plugin_name='RocksDB';
-plugin_name	plugin_type
-ROCKSDB	STORAGE ENGINE
-# Check that ROCKSDB plugin is not loaded:
-select plugin_name, plugin_type from information_schema.plugins where plugin_name='RocksDB';
-plugin_name	plugin_type
-# Check that MyRocks has printed an error message into server error log:
-FOUND 1 /enable both use_direct_reads/ in mysqld.1.err
-# Now, restart the server back with regular settings
-select plugin_name, plugin_type from information_schema.plugins where plugin_name='RocksDB';
-plugin_name	plugin_type
-ROCKSDB	STORAGE ENGINE
-#
-# Now, repeat the same with another set of invalid arguments
-#
-# Check that ROCKSDB plugin is not loaded:
-select plugin_name, plugin_type from information_schema.plugins where plugin_name='RocksDB';
-plugin_name	plugin_type
-FOUND 1 /enable both use_direct_io_for_flush_and_compaction/ in mysqld.1.err
-# Now, restart the server back with regular settings
-select plugin_name, plugin_type from information_schema.plugins where plugin_name='RocksDB';
-plugin_name	plugin_type
-ROCKSDB	STORAGE ENGINE

storage/rocksdb/mysql-test/rocksdb/t/use_direct_reads_writes.test

@@ -34,7 +34,6 @@ select plugin_name, plugin_type from information_schema.plugins where plugin_nam
 --source include/search_pattern_in_file.inc
 --remove_file $LOG
 
-select plugin_name, plugin_type from information_schema.plugins where plugin_name='RocksDB';
 
 # Verify invalid direct-writes and --rocksdb_flush_log_at_trx_commit combination at startup fails
 --echo Checking rocksdb_flush_log_at_trx_commit