blk_stat_remove_callback 110 block/blk-stat.h void blk_stat_remove_callback(struct request_queue *q, blk_stat_remove_callback 889 block/blk-sysfs.c blk_stat_remove_callback(q, q->poll_cb); blk_stat_remove_callback 696 block/blk-wbt.c blk_stat_remove_callback(q, rwb->cb);