diff mbox series

[v2,03/32] mm/pgtable: kmap_local_page() instead of kmap_atomic()

Message ID d74dc4b3-6a76-446f-8f5-52ae271fa07d@google.com (mailing list archive)
State New
Headers show
Series mm: allow pte_offset_map[_lock]() to fail | expand

Commit Message

Hugh Dickins June 9, 2023, 1:09 a.m. UTC 
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@google.com>
---
 include/linux/pgtable.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

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 */