On Tue, May 04, 2021 at 05:10:42PM +0200, Vineeth Vijayan wrote: >> For the css bus, we need locking for the event callbacks; for irq, this >> may interact with the subchannel lock and likely needs some care. >> >> I also looked at the other busses in the common I/O layer: scm looks >> good at a glance, ccwgroup and ccw have locking for online/offline; the >> other callbacks for the ccw drivers probably need to take the device >> lock as well. >> >> Common I/O layer maintainers, does that look right? >> > I just had a quick glance on the CIO layer drivers. And at first look, you > are right. > It looks likewe need modifications in the event callbacks (referring css > here) > Let me go thoughthis thoroughly and update. Did this go anywhere?