> There is nothing it protects, but it makes lockdep unhappy in many different
> ways.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> Signed-off-by: Keith Busch <keith.busch@intel.com>

This is commit 4c9f748f0ee88447b28546991f60f43a7319aafd in 4.5.

Doesn't it want to be applied to 4.4 stable too?