mm: Allow arches to provide ptep_get()

[mirror_ubuntu-hirsute-kernel.git] / include / linux / pgtable.h

diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 32b6c52d41b95ab07b56fc3f9eb77a9e71cfada3..56c1e8eb7bb0a095a9c5060e417fba63734129b8 100644 (file)
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -249,6 +249,13 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_PTEP_GET
+static inline pte_t ptep_get(pte_t *ptep)
+{
+       return READ_ONCE(*ptep);
+}
+#endif
+
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 #ifndef __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
 static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,