From: Miaohe Lin <linmiaohe@huawei.com> stable inclusion from stable-5.10.50 commit 0da83a815d33e39a29391c13de3462b9b6115350 bugzilla: 174522 https://gitee.com/openeuler/kernel/issues/I4DNFY Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit c78a7f3639932c48b4e1d329fc80fd26aa1a2fa3 ] Since commit a5516438959d ("hugetlb: modular state for hugetlb page size"), we can use huge_page_order to access hstate->order and pages_per_huge_page to fetch the pages per huge page. But gather_bootmem_prealloc() forgot to use it. Link: https://lkml.kernel.org/r/20210114114435.40075-1-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.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> Signed-off-by: Chen Jun <chenjun102@huawei.com> Acked-by: Weilong Chen <chenweilong@huawei.com> Signed-off-by: Chen Jun <chenjun102@huawei.com> --- mm/hugetlb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 44b57cc363ff..ae9d415220da 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2560,7 +2560,7 @@ static void __init gather_bootmem_prealloc(void) struct hstate *h = m->hstate; WARN_ON(page_count(page) != 1); - prep_compound_huge_page(page, h->order); + prep_compound_huge_page(page, huge_page_order(h)); WARN_ON(PageReserved(page)); prep_new_huge_page(h, page, page_to_nid(page)); put_page(page); /* free it into the hugepage allocator */ @@ -2572,7 +2572,7 @@ static void __init gather_bootmem_prealloc(void) * side-effects, like CommitLimit going negative. */ if (hstate_is_gigantic(h)) - adjust_managed_page_count(page, 1 << h->order); + adjust_managed_page_count(page, pages_per_huge_page(h)); cond_resched(); } } -- 2.20.1