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authorWolfram Sang <wsa@kernel.org>2022-02-23 16:14:15 +0300
committerWolfram Sang <wsa@kernel.org>2022-02-23 16:14:15 +0300
commit24e3bb7429bde31e9a28a46ca2fd6deaab257c30 (patch)
treee071e61748b5322e35033dbe0df8df5b027803d8 /include/linux/page_table_check.h
parent8302532f47bb6c3aa1ed2043d30187ca307f176a (diff)
parent509853f9e1e7b1490dc79f735a5dbafc9298f40d (diff)
downloadlinux-24e3bb7429bde31e9a28a46ca2fd6deaab257c30.tar.xz
Merge tag 'irq-api-2022-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into i2c/for-mergewindow
Provide a tag for maintainers to pull the generic_handle_irq_safe() API.
Diffstat (limited to 'include/linux/page_table_check.h')
-rw-r--r--include/linux/page_table_check.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/page_table_check.h b/include/linux/page_table_check.h
index 38cace1da7b6..01e16c7696ec 100644
--- a/include/linux/page_table_check.h
+++ b/include/linux/page_table_check.h
@@ -26,6 +26,9 @@ void __page_table_check_pmd_set(struct mm_struct *mm, unsigned long addr,
pmd_t *pmdp, pmd_t pmd);
void __page_table_check_pud_set(struct mm_struct *mm, unsigned long addr,
pud_t *pudp, pud_t pud);
+void __page_table_check_pte_clear_range(struct mm_struct *mm,
+ unsigned long addr,
+ pmd_t pmd);
static inline void page_table_check_alloc(struct page *page, unsigned int order)
{
@@ -100,6 +103,16 @@ static inline void page_table_check_pud_set(struct mm_struct *mm,
__page_table_check_pud_set(mm, addr, pudp, pud);
}
+static inline void page_table_check_pte_clear_range(struct mm_struct *mm,
+ unsigned long addr,
+ pmd_t pmd)
+{
+ if (static_branch_likely(&page_table_check_disabled))
+ return;
+
+ __page_table_check_pte_clear_range(mm, addr, pmd);
+}
+
#else
static inline void page_table_check_alloc(struct page *page, unsigned int order)
@@ -143,5 +156,11 @@ static inline void page_table_check_pud_set(struct mm_struct *mm,
{
}
+static inline void page_table_check_pte_clear_range(struct mm_struct *mm,
+ unsigned long addr,
+ pmd_t pmd)
+{
+}
+
#endif /* CONFIG_PAGE_TABLE_CHECK */
#endif /* __LINUX_PAGE_TABLE_CHECK_H */