Thu, Dec 21, 2017 at 09:54:06PM CET, xiyou.wangc...@gmail.com wrote: >On Thu, Dec 21, 2017 at 11:01 AM, Cong Wang <xiyou.wangc...@gmail.com> wrote: >> On Thu, Dec 21, 2017 at 1:03 AM, Jiri Pirko <j...@resnulli.us> wrote: >>> >>> >>> But again, we don't we just free qdisc in call_rcu and avoid the >>> barrier? >> >> >> Non-sense again. Why qdisc code should be adjusted for your >> miniq code? It is your own responsibility to take care of this shit. >> Don't spread it out of minq. > >Also, in case you believe call_rcu to free qdisc is queued after >the call_rcu in miniq, you are wrong again:
I certainly don't :) Not sure why you think I do. > >https://www.kernel.org/pub/linux/kernel/people/paulmck/Answers/RCU/RCUCBordering.html > >The rcu callbacks don't guarantee FIFO ordering.