On Thu, Apr 1, 2021 at 10:37 PM Michal Hocko <mhocko@xxxxxxxx> wrote: > > On Thu 01-04-21 21:59:13, Muchun Song wrote: > > On Thu, Apr 1, 2021 at 6:26 PM Michal Hocko <mhocko@xxxxxxxx> wrote: > [...] > > > Even if the css ref count is not really necessary it shouldn't cause any > > > harm and it makes the code easier to understand. At least a comment > > > explaining why that is not necessary would be required without it > > > > OK. I will add a comment here to explain why we need to hold a > > ref. > > I do not think this is necessary. Taking the reference is a standard > way and I am not sure it requires a comment. I meant to say that not > having a reference should really have a comment explaining why. Very Sorry. I got it wrong, thank you for further explanation. > > Thanks! > -- > Michal Hocko > SUSE Labs