On Thu, Apr 12, 2018 at 06:58:21AM -0700, t...@kernel.org wrote:
> Cool, can we just factor out the queue lock from those drivers?  It's
> just really messy to be switching locks like we do in the cleanup
> path.

So, looking at a couple drivers, it looks like all we'd need is a
struct which contains a spinlock and a refcnt.  Switching the drivers
to use that is a bit tedious but straight-forward and the block layer
can simply put that struct on queue release.



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