Re: Accounting problem of MIGRATE_ISOLATED freed page

[KOSAKI Motohiro]

One more.


> +/*
> + * NOTE:
> + * Don't use set_pageblock_migratetype(page, MIGRATE_ISOLATE) direclty.
> + * Instead, use {un}set_pageblock_isolate.
> + */
>  void set_pageblock_migratetype(struct page *page, int migratetype)
>  {
>         if (unlikely(page_group_by_mobility_disabled))

I don't think we need this comment. please just add BUG_ON.

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