elv_rb_former_request 1487 block/as-iosched.c 		.elevator_former_req_fn =	elv_rb_former_request,
elv_rb_former_request 2369 block/cfq-iosched.c 		.elevator_former_req_fn =	elv_rb_former_request,
elv_rb_former_request  449 block/deadline-iosched.c 		.elevator_former_req_fn =	elv_rb_former_request,
elv_rb_former_request  139 include/linux/elevator.h extern struct request *elv_rb_former_request(struct request_queue *, struct request *);