--- zzzz-none-000/linux-4.4.60/include/linux/blkdev.h 2017-04-08 07:53:53.000000000 +0000 +++ jet-2400-727/linux-4.4.60/include/linux/blkdev.h 2021-03-17 14:36:41.000000000 +0000 @@ -796,6 +796,7 @@ extern int blk_queue_enter(struct request_queue *q, gfp_t gfp); extern void blk_queue_exit(struct request_queue *q); +extern void blk_recalc_rq_segments(struct request *rq); extern void blk_start_queue(struct request_queue *q); extern void blk_start_queue_async(struct request_queue *q); extern void blk_stop_queue(struct request_queue *q);