max_period_delta 1030 block/blk-iocost.c 	u64 last_period, cur_period, max_period_delta;
max_period_delta 1075 block/blk-iocost.c 	max_period_delta = DIV64_U64_ROUND_UP(VTIME_VALID_DUR, ioc->period_us);
max_period_delta 1080 block/blk-iocost.c 	if (last_period + max_period_delta < cur_period ||