[PATCH 6/8] nvme: fix queue freeze vs limits lock order

Christoph Hellwig hch at lst.de
Tue Jan 7 00:22:24 PST 2025


On Tue, Jan 07, 2025 at 12:28:29PM +0530, Nilay Shroff wrote:
> > -	blk_mq_freeze_queue(ns->disk->queue);
> >  	lim = queue_limits_start_update(ns->disk->queue);
> >  	nvme_set_ctrl_limits(ns->ctrl, &lim);
> > +
> > +	blk_mq_freeze_queue(ns->disk->queue);
> >  	ret = queue_limits_commit_update(ns->disk->queue, &lim);
> >  	set_disk_ro(ns->disk, nvme_ns_is_readonly(ns, info));
> >  	blk_mq_unfreeze_queue(ns->disk->queue);
> 
> I think we should freeze queue before nvme_set_ctrl_limits(). 

Why?




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