fix queue freeze and limit locking order

[Ming Lei]

On Tue, Jan 07, 2025 at 07:30:32AM +0100, Christoph Hellwig wrote:
> Hi all,
> 
> this is my version of Damien's "Fix queue freeze and limit locking order".
> A lot looks very similar, but it was done independently based on the
> previous discussion.
> 
> Changes since RFC:
>  - fix a bizzare virtio_blk bisection snafu
>  - set BLK_FEAT_POLL a little less eagerly for blk-mq
>  - drop the loop patch just adding a comment
>  - improve various commit logs and coments
> 

loop_set_block_size() needs same change, can you cover it to this series?

Thanks,
Ming