On 02.02.21 11:12, yanfei.xu@xxxxxxxxxxxxx wrote:
From: Yanfei Xu <yanfei.xu@xxxxxxxxxxxxx>
Gigantic page is a compound page and its order is more than 1.
Thus it must be available for hpage_pincount. Let's remove this
meaningless if statement.
Signed-off-by: Yanfei Xu <yanfei.xu@xxxxxxxxxxxxx>
---
mm/hugetlb.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index a3e4fa2c5e94..73d602f8c7e2 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1501,9 +1501,7 @@ 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);
}
/*
I can spot similar handling in destroy_compound_gigantic_page(). If this
is correct (which I think it is), we should tackle both occurrences at once.
--
Thanks,
David / dhildenb
