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mm: document PageHuge somewhat
Acked-by: David Rientjes <rientjes@google.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -671,6 +671,11 @@ static void prep_compound_gigantic_page(struct page *page, unsigned long order)
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}
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}
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/*
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* PageHuge() only returns true for hugetlbfs pages, but not for normal or
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* transparent huge pages. See the PageTransHuge() documentation for more
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* details.
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*/
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int PageHuge(struct page *page)
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{
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compound_page_dtor *dtor;
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