From: Yanfei Xu yanfei.xu@windriver.com
[ Upstream commit 5291c09b3edb657f23c1939750c702ba2d74932f ]
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.
Link: https://lkml.kernel.org/r/20210202112002.73170-1-yanfei.xu@windriver.com Signed-off-by: Yanfei Xu yanfei.xu@windriver.com Reviewed-by: Mike Kravetz mike.kravetz@oracle.com Reviewed-by: David Hildenbrand david@redhat.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- mm/hugetlb.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 991b5cd40267..f90dd909d017 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1252,8 +1252,7 @@ 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); @@ -1583,9 +1582,7 @@ 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); }
/*