QUEUE_SYSFS_BIT_FNS  279 block/blk-sysfs.c QUEUE_SYSFS_BIT_FNS(nonrot, NONROT, 1);
QUEUE_SYSFS_BIT_FNS  280 block/blk-sysfs.c QUEUE_SYSFS_BIT_FNS(random, ADD_RANDOM, 0);
QUEUE_SYSFS_BIT_FNS  281 block/blk-sysfs.c QUEUE_SYSFS_BIT_FNS(iostats, IO_STAT, 0);