+ * @bulk_read: enable/disable bulk-reads (%0 default, %1 disabe, %2 enable)
+ * @chk_data_crc: enable/disable CRC data checking when reading data nodes
+ * (%0 default, %1 disabe, %2 enable)
+ * @override_compr: override default compressor (%0 - do not override and use
+ * superblock compressor, %1 - override and use compressor
+ * specified in @compr_type)
+ * @compr_type: compressor type to override the superblock compressor with
+ * (%UBIFS_COMPR_NONE, etc)