Am Mittwoch, den 26.06.2019, 10:38 -0400 schrieb Alan Stern: > On Wed, 26 Jun 2019, Oliver Neukum wrote: > > > Am Montag, den 24.06.2019, 10:22 -0400 schrieb Alan Stern: > > > But that pattern makes no sense; a driver would never use it. The > > > driver would just do the reset itself. > > > > Correct. But UAS and storage themselves still need to use > > WQ_MEM_RECLAIM for their workqueues, don't they? > > Perhaps so for uas. usb-storage uses a work queue only for scanning > targets, which doesn't interfere with the block I/O pathway. Are you sure? What about hub_tt_work? As far as I can tell, hub_quiesce will flush it, hence it is used in error handling. Regards Oliver
