On 02.02.21 12:20, yanfei...@windriver.com wrote:
From: Yanfei Xu <yanfei...@windriver.com>

Gigantic page is a compound page and its order is more than 1.
Thus it must be available for hpage_pincount. Let's remove the
redundant check for gigantic page.

Signed-off-by: Yanfei Xu <yanfei...@windriver.com>
---
  mm/hugetlb.c | 7 ++-----
  1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index a3e4fa2c5e94..dac5db569ccb 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1219,8 +1219,7 @@ static void destroy_compound_gigantic_page(struct page 
*page,
        struct page *p = page + 1;
atomic_set(compound_mapcount_ptr(page), 0);
-       if (hpage_pincount_available(page))
-               atomic_set(compound_pincount_ptr(page), 0);
+       atomic_set(compound_pincount_ptr(page), 0);
for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) {
                clear_compound_head(p);
@@ -1501,9 +1500,7 @@ static void prep_compound_gigantic_page(struct page 
*page, unsigned int order)
                set_compound_head(p, page);
        }
        atomic_set(compound_mapcount_ptr(page), -1);
-
-       if (hpage_pincount_available(page))
-               atomic_set(compound_pincount_ptr(page), 0);
+       atomic_set(compound_pincount_ptr(page), 0);
  }
/*


Reviewed-by: David Hildenbrand <da...@redhat.com>

--
Thanks,

David / dhildenb

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