[RESEND PATCH v2 3/3] block: hide back blk_freeze_queue_start and export its blk-mq alias

[Christoph Hellwig]

On Sun, Oct 30, 2022 at 04:19:49PM +0800, Jinlong Chen wrote:
> I agree that the freezing stuff (maybe also the quiescing stuff) should
> move out of the mq namespace. If now is not the proper time, I'll leave
> them alone. I'll resend patch 1 alone without the comment.

The quiesce actually is entirely blk-mq specific, which just have some
careless callers.