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Message-ID: <d74dc4b3-6a76-446f-8f5-52ae271fa07d@google.com>
Date: Thu, 8 Jun 2023 18:09:25 -0700 (PDT)
From: Hugh Dickins <hughd@...gle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
cc: Mike Kravetz <mike.kravetz@...cle.com>,
Mike Rapoport <rppt@...nel.org>,
"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
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Suren Baghdasaryan <surenb@...gle.com>,
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Yang Shi <shy828301@...il.com>,
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Ryan Roberts <ryan.roberts@....com>,
linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: [PATCH v2 03/32] mm/pgtable: kmap_local_page() instead of
kmap_atomic()
pte_offset_map() was still using kmap_atomic(): update it to the
preferred kmap_local_page() before making further changes there, in case
we need this as a bisection point; but I doubt it can cause any trouble.
Signed-off-by: Hugh Dickins <hughd@...gle.com>
---
include/linux/pgtable.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 8ec27fe69dc8..94235ff2706e 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -96,9 +96,9 @@ static inline pte_t *pte_offset_kernel(pmd_t *pmd, unsigned long address)
#if defined(CONFIG_HIGHPTE)
#define pte_offset_map(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \
+ ((pte_t *)kmap_local_page(pmd_page(*(dir))) + \
pte_index((address)))
-#define pte_unmap(pte) kunmap_atomic((pte))
+#define pte_unmap(pte) kunmap_local((pte))
#else
#define pte_offset_map(dir, address) pte_offset_kernel((dir), (address))
#define pte_unmap(pte) ((void)(pte)) /* NOP */
--
2.35.3
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