Messages in this thread | | | From | KOSAKI Motohiro <> | Date | Tue, 25 Sep 2012 11:59:51 -0400 | Subject | Re: [PATCH] pagemap: fix wrong KPF_THP on slab pages |
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On Tue, Sep 25, 2012 at 9:56 AM, Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> 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. > Currently thp is constructed only on anonymous pages, so this patch makes > KPF_THP be set when both of PageAnon and PageTransCompound are true.
Indeed. Please add some comment too.
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