Re: [PATCH] mm: don't warn if the node is offlined

[Yang Shi]

On Thu, Nov 3, 2022 at 12:54 AM Michal Hocko <mhocko@xxxxxxxx> wrote:
>
> On Wed 02-11-22 13:08:08, Yang Shi wrote:
> [...]
> > So I think we narrowed down to two options:
> > 1. Preserve the interleave behavior but bail out if the target node is
> > not online (it is also racy, but doesn't hurt)
>
> I do not think there is merit in the interleave patch is dubious to say
> the least.
>
> > 2. Remove the node balance code entirely
>
> Yes, removing the balancing makes sense but I would still hope that we
> do not fail too easily if the range is populated on multiple nodes
> equally. In practice it will likely not matter much I guess but setting
> up all nodes with top score is just easy to achieve.

OK, thanks. I will come up with a patch to allow fallback between the
nodes, it should be largely based on the change suggested by you.

> --
> Michal Hocko
> SUSE Labs