From: Andrew Donnellan <ajd@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org
Cc: akpm@linux-foundation.org, x86@kernel.org,
linux-riscv@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, pasha.tatashin@soleen.com,
sweettea-kernel@dorminy.me, nicholas@linux.ibm.com,
christophe.leroy@csgroup.eu
Subject: [PATCH v16 02/13] arm64/mm: Add addr parameter to __ptep_get_and_clear_anysz()
Date: Wed, 13 Aug 2025 16:26:03 +1000 [thread overview]
Message-ID: <20250813062614.51759-3-ajd@linux.ibm.com> (raw)
In-Reply-To: <20250813062614.51759-1-ajd@linux.ibm.com>
To provide support for page table check on powerpc, we need to reinstate the
address parameter in several functions, including
page_table_check_{pte,pmd,pud}_clear().
In preparation for this, add the addr parameter to arm64's
__ptep_get_and_clear_anysz() and change its callsites accordingly.
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
---
v15: new patch
---
arch/arm64/include/asm/pgtable.h | 5 +++--
arch/arm64/mm/hugetlbpage.c | 7 ++++---
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index ed644be48d87..66b5309fcad8 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -1357,6 +1357,7 @@ static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
#endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG */
static inline pte_t __ptep_get_and_clear_anysz(struct mm_struct *mm,
+ unsigned long address,
pte_t *ptep,
unsigned long pgsize)
{
@@ -1384,7 +1385,7 @@ static inline pte_t __ptep_get_and_clear_anysz(struct mm_struct *mm,
static inline pte_t __ptep_get_and_clear(struct mm_struct *mm,
unsigned long address, pte_t *ptep)
{
- return __ptep_get_and_clear_anysz(mm, ptep, PAGE_SIZE);
+ return __ptep_get_and_clear_anysz(mm, address, ptep, PAGE_SIZE);
}
static inline void __clear_full_ptes(struct mm_struct *mm, unsigned long addr,
@@ -1423,7 +1424,7 @@ static inline pte_t __get_and_clear_full_ptes(struct mm_struct *mm,
static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
unsigned long address, pmd_t *pmdp)
{
- return pte_pmd(__ptep_get_and_clear_anysz(mm, (pte_t *)pmdp, PMD_SIZE));
+ return pte_pmd(__ptep_get_and_clear_anysz(mm, address, (pte_t *)pmdp, PMD_SIZE));
}
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index 1003b5020752..bcc28031eb7a 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -159,11 +159,12 @@ static pte_t get_clear_contig(struct mm_struct *mm,
pte_t pte, tmp_pte;
bool present;
- pte = __ptep_get_and_clear_anysz(mm, ptep, pgsize);
+ pte = __ptep_get_and_clear_anysz(mm, addr, ptep, pgsize);
present = pte_present(pte);
while (--ncontig) {
ptep++;
- tmp_pte = __ptep_get_and_clear_anysz(mm, ptep, pgsize);
+ addr += pgsize;
+ tmp_pte = __ptep_get_and_clear_anysz(mm, addr, ptep, pgsize);
if (present) {
if (pte_dirty(tmp_pte))
pte = pte_mkdirty(pte);
@@ -207,7 +208,7 @@ static void clear_flush(struct mm_struct *mm,
unsigned long i, saddr = addr;
for (i = 0; i < ncontig; i++, addr += pgsize, ptep++)
- __ptep_get_and_clear_anysz(mm, ptep, pgsize);
+ __ptep_get_and_clear_anysz(mm, addr, ptep, pgsize);
if (mm == &init_mm)
flush_tlb_kernel_range(saddr, addr);
--
2.50.1
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next prev parent reply other threads:[~2025-08-13 6:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-13 6:26 [PATCH v16 00/13] Support page table check on PowerPC Andrew Donnellan
2025-08-13 6:26 ` [PATCH v16 01/13] arm64/mm: Add addr parameter to __set_ptes_anysz() Andrew Donnellan
2025-08-13 6:26 ` Andrew Donnellan [this message]
2025-08-13 6:26 ` [PATCH v16 03/13] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pud[s]_set() Andrew Donnellan
2025-08-14 9:49 ` Alexandre Ghiti
2025-08-13 6:26 ` [PATCH v16 04/13] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pmd[s]_set() Andrew Donnellan
2025-08-14 9:50 ` Alexandre Ghiti
2025-08-13 6:26 ` [PATCH v16 05/13] mm/page_table_check: Provide addr parameter to page_table_check_ptes_set() Andrew Donnellan
2025-08-14 9:50 ` Alexandre Ghiti
2025-08-13 6:26 ` [PATCH v16 06/13] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pud_clear() Andrew Donnellan
2025-08-14 12:11 ` Alexandre Ghiti
2025-08-14 23:24 ` Andrew Morton
2025-08-13 6:26 ` [PATCH v16 07/13] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pmd_clear() Andrew Donnellan
2025-08-14 9:59 ` Alexandre Ghiti
2025-08-13 6:26 ` [PATCH v16 08/13] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pte_clear() Andrew Donnellan
2025-08-14 10:00 ` Alexandre Ghiti
2025-08-13 6:26 ` [PATCH v16 09/13] mm: Provide address parameter to p{te,md,ud}_user_accessible_page() Andrew Donnellan
2025-08-14 10:01 ` Alexandre Ghiti
2025-08-13 6:26 ` [PATCH v16 10/13] powerpc: mm: Add pud_pfn() stub Andrew Donnellan
2025-08-13 6:26 ` [PATCH v16 11/13] powerpc: mm: Implement *_user_accessible_page() for ptes Andrew Donnellan
2025-08-13 6:26 ` [PATCH v16 12/13] powerpc: mm: Use set_pte_at_unchecked() for internal usages Andrew Donnellan
2025-08-13 6:26 ` [PATCH v16 13/13] powerpc: mm: Support page table check Andrew Donnellan
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