On Fri, May 12, 2017 at 1:58 PM, Cong Wang <xiyou.wangc...@gmail.com> wrote: > On Fri, May 12, 2017 at 10:27 AM, Cong Wang <xiyou.wangc...@gmail.com> wrote: >> Or maybe don't touch nh_oif but using a new flag in >> nh_flags?? We only need to know if we should call >> dev_put() in free_fib_info_rcu(). >> >> Again, I am still not sure if it is any better than just >> putting these fib_nh into a linked list. >> > > I am afraid we have to use a linked list, because either a flag or > nh_oif is per nh, but one nh could have multiple different nh_devs...
Scratch that. Each fib_nh has one nh_dev... I am trying to use a flag.