On Mon, Feb 28, 2022 at 05:04:26PM +0800, Ming Lei wrote: > blk_mq_alloc_and_init_hctx() has already taken reuse into account, so > no need to do it outside, then we can simplify blk_mq_realloc_hw_ctxs(). Looks good: Reviewed-by: Christoph Hellwig <hch@xxxxxx>