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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-08-02 16:13:30 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-24 16:20:18 -0700 |
| commit | a379322022c0961fe0b638cdd842d3c38eeff92c (patch) | |
| tree | d72fcdc430b08776886998c2c1887bb7478439a1 /mm/page_table_check.c | |
| parent | f9bff0e31881d03badf191d3b0005839391f5f2b (diff) | |
| download | linux-stable-a379322022c0961fe0b638cdd842d3c38eeff92c.tar.gz linux-stable-a379322022c0961fe0b638cdd842d3c38eeff92c.tar.bz2 linux-stable-a379322022c0961fe0b638cdd842d3c38eeff92c.zip | |
mm: convert page_table_check_pte_set() to page_table_check_ptes_set()
Tell the page table check how many PTEs & PFNs we want it to check.
Link: https://lkml.kernel.org/r/20230802151406.3735276-3-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org>
Acked-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/page_table_check.c')
| -rw-r--r-- | mm/page_table_check.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/mm/page_table_check.c b/mm/page_table_check.c index 46e77c12c81e..af69c3c8f7c2 100644 --- a/mm/page_table_check.c +++ b/mm/page_table_check.c @@ -182,18 +182,20 @@ void __page_table_check_pud_clear(struct mm_struct *mm, pud_t pud) } EXPORT_SYMBOL(__page_table_check_pud_clear); -void __page_table_check_pte_set(struct mm_struct *mm, pte_t *ptep, pte_t pte) +void __page_table_check_ptes_set(struct mm_struct *mm, pte_t *ptep, pte_t pte, + unsigned int nr) { + unsigned int i; + if (&init_mm == mm) return; - __page_table_check_pte_clear(mm, ptep_get(ptep)); - if (pte_user_accessible_page(pte)) { - page_table_check_set(pte_pfn(pte), PAGE_SIZE >> PAGE_SHIFT, - pte_write(pte)); - } + for (i = 0; i < nr; i++) + __page_table_check_pte_clear(mm, ptep_get(ptep + i)); + if (pte_user_accessible_page(pte)) + page_table_check_set(pte_pfn(pte), nr, pte_write(pte)); } -EXPORT_SYMBOL(__page_table_check_pte_set); +EXPORT_SYMBOL(__page_table_check_ptes_set); void __page_table_check_pmd_set(struct mm_struct *mm, pmd_t *pmdp, pmd_t pmd) { |