Commit 34c876ce authored by Kemeng Shi's avatar Kemeng Shi Committed by Andrew Morton
Browse files

mm/page_table_check: remove unused parameters in page_table_check_clear() 

Patch series "Remove unused parameters in page_table_check".

This series remove unused parameters in functions from page_table_check. 
The first 2 patches remove unused mm and addr parameters in static common
functions page_table_check_clear and page_table_check_set.  The last 6
patches remove unused addr parameter in some externed functions which only
need addr for cleaned page_table_check_clear or page_table_check_set. 
There is no intended functional change.  


This patch (of 8):

Remove unused mm and addr in function page_table_check_clear().

Link: https://lkml.kernel.org/r/20230713172636.1705415-1-shikemeng@huaweicloud.com
Link: https://lkml.kernel.org/r/20230713172636.1705415-2-shikemeng@huaweicloud.com


Signed-off-by: default avatarKemeng Shi <shikemeng@huaweicloud.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent f4d005af

mm/page_table_check.c

+4 −8
Original line number Diff line number Diff line
@@ -58,8 +58,7 @@ static struct page_table_check *get_page_table_check(struct page_ext *page_ext) 
 * An entry is removed from the page table, decrement the counters for that page

 * verify that it is of correct type and counters do not become negative.

 */

static void page_table_check_clear(struct mm_struct *mm, unsigned long addr,

				   unsigned long pfn, unsigned long pgcnt)

static void page_table_check_clear(unsigned long pfn, unsigned long pgcnt)

{

	struct page_ext *page_ext;

	struct page *page;
@@ -158,8 +157,7 @@ void __page_table_check_pte_clear(struct mm_struct *mm, unsigned long addr, 
		return;



	if (pte_user_accessible_page(pte)) {

		page_table_check_clear(mm, addr, pte_pfn(pte),

				       PAGE_SIZE >> PAGE_SHIFT);

		page_table_check_clear(pte_pfn(pte), PAGE_SIZE >> PAGE_SHIFT);

	}

}

EXPORT_SYMBOL(__page_table_check_pte_clear);
@@ -171,8 +169,7 @@ void __page_table_check_pmd_clear(struct mm_struct *mm, unsigned long addr, 
		return;



	if (pmd_user_accessible_page(pmd)) {

		page_table_check_clear(mm, addr, pmd_pfn(pmd),

				       PMD_SIZE >> PAGE_SHIFT);

		page_table_check_clear(pmd_pfn(pmd), PMD_SIZE >> PAGE_SHIFT);

	}

}

EXPORT_SYMBOL(__page_table_check_pmd_clear);
@@ -184,8 +181,7 @@ void __page_table_check_pud_clear(struct mm_struct *mm, unsigned long addr, 
		return;



	if (pud_user_accessible_page(pud)) {

		page_table_check_clear(mm, addr, pud_pfn(pud),

				       PUD_SIZE >> PAGE_SHIFT);

		page_table_check_clear(pud_pfn(pud), PUD_SIZE >> PAGE_SHIFT);

	}

}

EXPORT_SYMBOL(__page_table_check_pud_clear);