Re: [PATCH 04/10] mm/migrate: make migrate_pages() return nr_succeeded

[Wei Xu <weixugc@xxxxxxxxxx>]

On Fri, Apr 9, 2021 at 8:50 AM Dave Hansen <dave.hansen@xxxxxxxxx> wrote:
> I also considered passing NULL to mean "I don't care about
> nr_succeeded".  I mostly avoided it to reduce churn.  But, looking at it
> here, it does seem cleaner.
>
> Any objections to moving over to Oscar's suggestion?

I like this approach (making *nr_succeeded an optional argument).  No
objection here.