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SubjectRe: [PATCH v4] kpageflags: fix wrong KPF_THP on non-huge compound pages
> -	else if (PageTransCompound(page))
> + /*
> + * PageTransCompound can be true for non-huge compound pages (slab
> + * pages or pages allocated by drivers with __GFP_COMP) because it
> + * just checks PG_head/PG_tail, so we need to check PageLRU to make
> + * sure a given page is a thp, not a non-huge compound page.
> + */
> + else if (PageTransCompound(page) && PageLRU(compound_trans_head(page)))
> u |= 1 << KPF_THP;

Reviewed-by: Fengguang Wu <fengguang.wu@intel.com>

Thanks!


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