On Fri, May 01, 2020 at 02:21:54PM -0400, Tejun Heo wrote: > Hello, > > On Fri, May 01, 2020 at 10:59:24AM -0700, Linus Torvalds wrote: > > Which kind of makes me want to point a finger at Tejun. But it's been > > mostly PeterZ touching this file lately.. > > Looks fine to me too. I don't quite understand the usecase tho. It looks > like all it's being used for is to tag some kthreads as belonging to the > same group. Pretty much. > Can't that be done with kthread_data()? Huh, maybe so, thanks. I need to check this from generic file locking code that could be run by any task--but I assume there's an easy way I can check if I'm a kthread before calling kthread_data(current). I do expect to expose a delegation interface for userspace servers eventually too. But we could do the tgid check for them and still use kthread_data() for nfsd. That might work. --b.
