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SubjectRe: [PATCH] pagemap: fix wrong KPF_THP on slab pages
On Tue, 25 Sep 2012, Naoya Horiguchi wrote:

> KPF_THP can be set on non-huge compound pages like slab pages, because
> PageTransCompound only sees PG_head and PG_tail. Obviously this is a bug
> and breaks user space applications which look for thp via /proc/kpageflags.
> This patch rules out setting KPF_THP wrongly by additional PageSlab check.
>
> Changelog in v3:
> - check PageSlab instead of PageAnon
> - fix patch subject
>
> Changelog in v2:
> - add a comment in code
>
> Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>

Acked-by: David Rientjes <rientjes@google.com>


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