[dm-devel] [for-4.16 PATCH v5 0/4] block/dm: allow DM to defer blk_register_queue() until ready

[Mike Snitzer]

On Mon, Jan 15 2018 at 12:36pm -0500,
Bart Van Assche <Bart.VanAssche at wdc.com> wrote:

> On Mon, 2018-01-15 at 12:29 -0500, Mike Snitzer wrote:
> > So you replied to v5, I emailed a v6 out for the relevant patch.  Just
> > want to make sure you're testing with either Jens' latest tree or are
> > using my v6 that fixed blk_mq_unregister_dev() to require caller holds
> > q->sysfs_lock ?
> 
> Hello Mike,
> 
> In my test I was using Jens' latest for-next tree (commit 563877ae7dae).

OK, that includes his latest for-4.16/block (commit c100ec49fdd22228) so
I'll take a closer look at this lockdep splat.

Do I need to do something more to enable lockdep aside from set
CONFIG_LOCKDEP_SUPPORT=y ?

Thanks,
Mike