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-rw-r--r--mm/hugetlb.c9
-rw-r--r--mm/internal.h8
2 files changed, 5 insertions, 12 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index dfa412d8cb30..de96cd936b12 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1489,7 +1489,6 @@ static void __destroy_compound_gigantic_folio(struct folio *folio,
set_page_refcounted(p);
}
- folio_set_order(folio, 0);
__folio_clear_head(folio);
}
@@ -1951,9 +1950,6 @@ static bool __prep_compound_gigantic_folio(struct folio *folio,
struct page *p;
__folio_clear_reserved(folio);
- __folio_set_head(folio);
- /* we rely on prep_new_hugetlb_folio to set the destructor */
- folio_set_order(folio, order);
for (i = 0; i < nr_pages; i++) {
p = folio_page(folio, i);
@@ -1999,6 +1995,9 @@ static bool __prep_compound_gigantic_folio(struct folio *folio,
if (i != 0)
set_compound_head(p, &folio->page);
}
+ __folio_set_head(folio);
+ /* we rely on prep_new_hugetlb_folio to set the destructor */
+ folio_set_order(folio, order);
atomic_set(&folio->_entire_mapcount, -1);
atomic_set(&folio->_nr_pages_mapped, 0);
atomic_set(&folio->_pincount, 0);
@@ -2017,8 +2016,6 @@ out_error:
p = folio_page(folio, j);
__ClearPageReserved(p);
}
- folio_set_order(folio, 0);
- __folio_clear_head(folio);
return false;
}
diff --git a/mm/internal.h b/mm/internal.h
index f45f5eb4514f..faf0508d89a5 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -438,16 +438,12 @@ int split_free_page(struct page *free_page,
*/
static inline void folio_set_order(struct folio *folio, unsigned int order)
{
- if (WARN_ON_ONCE(!folio_test_large(folio)))
+ if (WARN_ON_ONCE(!order || !folio_test_large(folio)))
return;
folio->_folio_order = order;
#ifdef CONFIG_64BIT
- /*
- * When hugetlb dissolves a folio, we need to clear the tail
- * page, rather than setting nr_pages to 1.
- */
- folio->_folio_nr_pages = order ? 1U << order : 0;
+ folio->_folio_nr_pages = 1U << order;
#endif
}