[PATCH 05/10] hugetlb: Use helper {huge_pte|pmd}_lock()

From: Miaohe Lin
Date: Fri Aug 26 2022 - 05:25:16 EST


Use helper huge_pte_lock and pmd_lock to simplify the code. No functional
change intended.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
mm/hugetlb.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 06293da96112..6ea9f73aea84 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -6094,8 +6094,7 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm,
page_in_pagecache = true;
}

- ptl = huge_pte_lockptr(h, dst_mm, dst_pte);
- spin_lock(ptl);
+ ptl = huge_pte_lock(h, dst_mm, dst_pte);

/*
* We allow to overwrite a pte marker: consider when both MISSING|WP
@@ -7176,8 +7175,7 @@ follow_huge_pmd(struct mm_struct *mm, unsigned long address,
return NULL;

retry:
- ptl = pmd_lockptr(mm, pmd);
- spin_lock(ptl);
+ ptl = pmd_lock(mm, pmd);
/*
* make sure that the address range covered by this pmd is not
* unmapped from other threads.
--
2.23.0