prev_busy_level 1357 block/blk-iocost.c int prev_busy_level, i; prev_busy_level 1545 block/blk-iocost.c prev_busy_level = ioc->busy_level; prev_busy_level 1609 block/blk-iocost.c } else if (ioc->busy_level != prev_busy_level || nr_lagging) {