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

[Jinlong Chen]

> On Sun, Oct 30, 2022 at 01:26:46PM +0800, Jinlong Chen wrote:
> > blk_freeze_queue_start is used internally for universal queue draining and
> > externally for blk-mq specific queue freezing. Keep the non-blk-mq name
> > private and export a blk-mq alias to users.
> 
> I really don't see the point here.  Eventually all of the freezing
> should move out of the mq namespace.  But that given that we have
> actual technical work pending here I'd suggest to just leave it alone
> for now, and just respin a version of patch 1 without the pointless
> comment.

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.

Thanks!
Jinlong Chen