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From:   Muchun Song <songmuchun@bytedance.com>
To:     mike.kravetz@oracle.com, david@redhat.com,
        akpm@linux-foundation.org, corbet@lwn.net
Cc:     linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        linux-doc@vger.kernel.org, duanxiongchun@bytedance.com,
        Muchun Song <songmuchun@bytedance.com>
Subject: [PATCH v2 8/8] mm: hugetlb_vmemmap: use PTRS_PER_PTE instead of PMD_SIZE / PAGE_SIZE
Date:   Tue, 28 Jun 2022 17:22:35 +0800
Message-Id: <20220628092235.91270-9-songmuchun@bytedance.com>
In-Reply-To: <20220628092235.91270-1-songmuchun@bytedance.com>
References: <20220628092235.91270-1-songmuchun@bytedance.com>
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There is already a macro PTRS_PER_PTE to represent the number of page table
entries, just use it.

Signed-off-by: Muchun Song <songmuchun@bytedance.com>
---
 mm/hugetlb_vmemmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c
index 6bbc445b1a66..65b527e1799c 100644
--- a/mm/hugetlb_vmemmap.c
+++ b/mm/hugetlb_vmemmap.c
@@ -48,7 +48,7 @@ static int __split_vmemmap_huge_pmd(pmd_t *pmd, unsigned long start)
 
 	pmd_populate_kernel(&init_mm, &__pmd, pgtable);
 
-	for (i = 0; i < PMD_SIZE / PAGE_SIZE; i++, addr += PAGE_SIZE) {
+	for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) {
 		pte_t entry, *pte;
 		pgprot_t pgprot = PAGE_KERNEL;
 
-- 
2.11.0