diff mbox series

[-next,v6,1/6] mm: page_table_check: using PxD_SIZE instead of PxD_PAGE_SIZE

Message ID 20220426081036.1374452-2-tongtiangen@huawei.com (mailing list archive)
State New
Headers show
Series mm: page_table_check: add support on arm64 and riscv | expand

Commit Message

Tong Tiangen April 26, 2022, 8:10 a.m. UTC 
Compared with PxD_PAGE_SIZE, which is defined and used only on X86,
PxD_SIZE is more common in each architecture. Therefore, it is more
reasonable to use PxD_SIZE instead of PxD_PAGE_SIZE in page_table_check.c.
At the same time, it is easier to support page table check in other
architectures. The substitution has no functional impact on the x86.

Suggested-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Acked-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
 mm/page_table_check.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/mm/page_table_check.c b/mm/page_table_check.c
index 2458281bff89..eb0d0b71cdf6 100644
--- a/mm/page_table_check.c
+++ b/mm/page_table_check.c
@@ -177,7 +177,7 @@  void __page_table_check_pmd_clear(struct mm_struct *mm, unsigned long addr,
 
 	if (pmd_user_accessible_page(pmd)) {
 		page_table_check_clear(mm, addr, pmd_pfn(pmd),
-				       PMD_PAGE_SIZE >> PAGE_SHIFT);
+				       PMD_SIZE >> PAGE_SHIFT);
 	}
 }
 EXPORT_SYMBOL(__page_table_check_pmd_clear);
@@ -190,7 +190,7 @@  void __page_table_check_pud_clear(struct mm_struct *mm, unsigned long addr,
 
 	if (pud_user_accessible_page(pud)) {
 		page_table_check_clear(mm, addr, pud_pfn(pud),
-				       PUD_PAGE_SIZE >> PAGE_SHIFT);
+				       PUD_SIZE >> PAGE_SHIFT);
 	}
 }
 EXPORT_SYMBOL(__page_table_check_pud_clear);
@@ -219,7 +219,7 @@  void __page_table_check_pmd_set(struct mm_struct *mm, unsigned long addr,
 	__page_table_check_pmd_clear(mm, addr, *pmdp);
 	if (pmd_user_accessible_page(pmd)) {
 		page_table_check_set(mm, addr, pmd_pfn(pmd),
-				     PMD_PAGE_SIZE >> PAGE_SHIFT,
+				     PMD_SIZE >> PAGE_SHIFT,
 				     pmd_write(pmd));
 	}
 }
@@ -234,7 +234,7 @@  void __page_table_check_pud_set(struct mm_struct *mm, unsigned long addr,
 	__page_table_check_pud_clear(mm, addr, *pudp);
 	if (pud_user_accessible_page(pud)) {
 		page_table_check_set(mm, addr, pud_pfn(pud),
-				     PUD_PAGE_SIZE >> PAGE_SHIFT,
+				     PUD_SIZE >> PAGE_SHIFT,
 				     pud_write(pud));
 	}
 }