g_zone_nr_conv 192 drivers/block/null_blk_main.c static unsigned int g_zone_nr_conv; g_zone_nr_conv 193 drivers/block/null_blk_main.c module_param_named(zone_nr_conv, g_zone_nr_conv, uint, 0444); g_zone_nr_conv 531 drivers/block/null_blk_main.c dev->zone_nr_conv = g_zone_nr_conv;