[dm-devel] [PATCH V3] blk-mq: introduce BLK_STS_DEV_RESOURCE

[Bart Van Assche]

On Tue, 2018-01-30 at 09:07 +0800, Ming Lei wrote:
> On Mon, Jan 29, 2018 at 04:48:31PM +0000, Bart Van Assche wrote:
> > - It is easy to fix this race inside the block layer, namely by using
> >   call_rcu() inside the blk_mq_delay_run_hw_queue() implementation to
> >   postpone the queue rerunning until after the request has been added back to
> >   the dispatch list.
> 
> It is just easy to say, can you cook a patch and fix all drivers first?

Please reread what I wrote. I proposed to change the blk_mq_delay_run_hw_queue()
IMPLEMENTATION such that the callers do not have to be modified.

> [ ... ] Later, you admitted you understood the patch wrong. [ ... ]

That's nonsense. I never wrote that.

Bart.