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mm/hugetlb: set head flag before setting compound_order in __prep_compound_gigantic_folio

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folio_set_compound_order() checks if the passed in folio is a large folio.
A large folio is indicated by the PG_head flag.  Call __folio_set_head()
before setting the order.

Link: https://lkml.kernel.org/r/20221212225529.22493-1-sidhartha.kumar@oracle.com
Fixes: d1c6095572 ("mm/hugetlb: convert hugetlb prep functions to folios")
Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Reported-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Sidhartha Kumar 2022-12-12 14:55:29 -08:00 committed by Andrew Morton
parent c47454823b
commit c45bc55a99
1 changed files with 2 additions and 2 deletions
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4
mm/hugetlb.c
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@ -1805,10 +1805,10 @@ static bool __prep_compound_gigantic_folio(struct folio *folio,
int nr_pages = 1 << order;
struct page *p;
/* we rely on prep_new_hugetlb_folio to set the destructor */
folio_set_compound_order(folio, order);
__folio_clear_reserved(folio);
__folio_set_head(folio);
/* we rely on prep_new_hugetlb_folio to set the destructor */
folio_set_compound_order(folio, order);
for (i = 0; i < nr_pages; i++) {
p = folio_page(folio, i);