On Mon, Aug 15, 2022 at 02:13:13PM -0700, Hao Luo wrote: > > > > Iters allow userspace to kick the kernel, but IMO they're meant to enable > > data extraction from the kernel, and dumping kernel data into user-space. > > Not necessarily extracting data and dumping data. It could be used to > do operations on a set of objects, the operation could be > notification. Iterating and notifying are orthogonal IMHO. > > > What I'm proposing is a more generalizable way of driving logic in the > > kernel from user-space. > > Does that make sense? Looking forward to hearing your thoughts. > > Yes, sort of. I see the difference between iter and the proposed > interface. But I am not clear about the motivation of a new APis for > kicking callbacks from userspace. I guess maybe it will become clear, > when you publish a concerte RFC of that interface and integrates with > your userspace publisher. Fair enough -- let me remove this from the cover letter in future versions of the patch-set. To your point, there's probably little to be gained in debating the merits of adding such APIs until there's a concrete use-case. Thanks, David