On Wed, 14 Feb 2007, Linus Torvalds wrote: > > > On Tue, 13 Feb 2007, Ingo Molnar wrote: > > > > the core syslet / async system calls infrastructure code. > > Ok, having now looked at it more, I can say: > > - I hate it. > > I dislike it intensely, because it's so _close_ to being usable. But the > programming interface looks absolutely horrid for any "casual" use, and > while the loops etc look like fun, I think they are likely to be less than > useful in practice. Yeah, you can do the "setup and teardown" just once, > but it ends up being "once per user", and it ends up being a lot of stuff > to do for somebody who wants to just do some simple async stuff. > > And the whole "lock things down in memory" approach is bad. It's doing > expensive things like mlock(), making the overhead for _single_ system > calls much more expensive. Since I don't actually believe that the > non-single case is even all that interesting, I really don't like it. > > I think it's clever and potentially useful to allow user mode to see the > data structures (and even allow user mode to *modify* them) while the > async thing is running, but it really seems to be a case of excessive > cleverness.
Ok, that makes the wierdo-count up to two :) I agree with you that the chained API can be improved at least. - Davide - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
