On Thu, Apr 06, 2023 at 07:42:44PM +0200, Daniel Vetter wrote: > But I think there's tools to make sure we don't dig a complete hole with > these it sounds like. I guess another topic for pestering the rust folks. Or to put it very bluntly: Could we make Arc<T> at least runtime enforce (with the usual lockdep annotation trick like fs_reclaim) that and Drop is the final one? If that's the rust Arc<T> linux semantics then I think my worries are 100% covered. And we'll sort out the trickier type based enforcement for special cases when they hit us. The downside is that this is substantially stricter than kref on the C side, but I think that's a Good Thing :-) -Daniel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch
