On Wed, 2016-07-27 at 14:50 +0530, Bhaktipriya Shridhar wrote:
> The workqueue "workqueue" has multiple workitems which may require
> ordering. Hence, a dedicated ordered workqueue has been used.
> Since the workqueue is not being used on a memory reclaim path,
> WQ_MEM_RECLAIM has not been set.
That is incorrect. The work queue is used by the HCD to handle
TDs, which are parts of basic IO. The HCD in turn is used by
usb-storage and uas, which are block drivers and those are obviously
used on the memory reclaim path.
HTH
Oliver
