lld_busy_fn       252 include/linux/blkdev.h typedef int (lld_busy_fn) (struct request_queue *q);
lld_busy_fn       334 include/linux/blkdev.h 	lld_busy_fn		*lld_busy_fn;
lld_busy_fn      1032 include/linux/blkdev.h extern void blk_queue_lld_busy(struct request_queue *q, lld_busy_fn *fn);