Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> writes: > On Thu, Jun 24, 2021 at 12:03 PM Eric W. Biederman > <ebiederm@xxxxxxxxxxxx> wrote: >> >> Implement start_task_exit_locked and rewrite the de_thread logic >> in exec using it. >> >> Calling start_task_exit_locked is equivalent to asyncrhonously >> calling exit(2) aka pthread_exit on a task. > > Ok, so this is the patch that makes me go "Yeah, this seems to all go together". > > The whole "start_exit()" thing seemed fairly sane as an interesting > concept to the whole ptrace notification thing, but this one actually > made me think it makes conceptual sense and how we had exactly that > "start exit asynchronously" case already in zap_other_threads(). > > So doing that zap_other_threads() as that async exit makes me just > thin kthat yes, this series is the right thing, because it not only > cleans up the ptrace condition, it makes sense in this entirely > unrelated area too. > > So I think I'm convinced. I'd like Oleg in particular to Ack this > series, and Al to look it over, but I do think this is the right > direction. Thanks. It took a bit of exploration and playing with things to get here, but I had the same sense. Next round I will see if I can clean up the patches a bit more. Eric
