On Fri, 2018-08-10 at 11:21 -0700, Tadeusz Struk wrote: > and the feedback I got from Jason was: > > "I wonder if it is worth creating this when the first file is > opened.. Lots of systems have TPMs but few use the userspace.." > > so I changed this to allocate the WQ on first open. I think it makes > sense, but I leave it to you to decide. If the reason is to not create a wq unless it's needed, shouldn't the condition actually be first open with flag O_NONBLOCK? James