在 2022/02/25 10:40, Ming Lei 写道:
+static inline struct blk_mq_hw_ctx *queue_hctx(struct request_queue *q, int id) +{ + struct blk_mq_hw_ctx *hctx; + + rcu_read_lock(); + hctx = *(rcu_dereference(q->queue_hw_ctx) + id); + rcu_read_unlock(); + + return hctx; +}queue_hctx() should be moved into linux/blk-mq.h, otherwise feel free to add: Reviewed-by: Ming Lei <ming.lei@xxxxxxxxxx>
Thanks for the review, I will send a new patch and move queue_hctx. Kuai
Also it should be fine to implement queue_for_each_hw_ctx() as list, then we can avoid the allocation for q->queue_hw_ctx without extra cost. I will work toward that direction for improving the code. Thanks, Ming .
