block: set make_request_fn manually in blk_mq_update_nr_hw_queues
Calling blk_queue_make_request resets a bunch of settings on the request_queue, but all we really want is to update the make_request_fn, so do this directly so we don't lose things like the logical and physical block sizes. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
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@ -2629,10 +2629,14 @@ void blk_mq_update_nr_hw_queues(struct blk_mq_tag_set *set, int nr_hw_queues)
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list_for_each_entry(q, &set->tag_list, tag_set_list) {
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blk_mq_realloc_hw_ctxs(set, q);
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/*
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* Manually set the make_request_fn as blk_queue_make_request
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* resets a lot of the queue settings.
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*/
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if (q->nr_hw_queues > 1)
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blk_queue_make_request(q, blk_mq_make_request);
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q->make_request_fn = blk_mq_make_request;
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else
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blk_queue_make_request(q, blk_sq_make_request);
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q->make_request_fn = blk_sq_make_request;
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blk_mq_queue_reinit(q, cpu_online_mask);
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}
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