From: Andrew Donnellan <ajd@linux.ibm.com>
To: linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
Pasha Tatashin <pasha.tatashin@soleen.com>,
Andrew Morton <akpm@linux-foundation.org>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>,
Rohan McLure <rmclure@nvidia.com>,
Christophe Leroy <chleroy@kernel.org>
Cc: Alexandre Ghiti <alex@ghiti.fr>,
x86@kernel.org, Nicholas Miehlbradt <nicholas@linux.ibm.com>,
Sweet Tea Dorminy <sweettea-kernel@dorminy.me>,
Andrew Donnellan <andrew+kernel@donnellan.id.au>,
Srish Srinivasan <ssrish@linux.ibm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org
Subject: [PATCH v18 02/12] arm64/mm: Add addr parameter to __ptep_get_and_clear_anysz()
Date: Fri, 19 Dec 2025 04:09:34 +1100 [thread overview]
Message-ID: <20251219-pgtable_check_v18rebase-v18-2-755bc151a50b@linux.ibm.com> (raw)
In-Reply-To: <20251219-pgtable_check_v18rebase-v18-0-755bc151a50b@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 52f3ea07427cef399e68bea0dbab39d03ea83060..29f7ae7011a820687f5b1e2fdc782eb37f85fc1b 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -1332,6 +1332,7 @@ 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)
{
@@ -1359,7 +1360,7 @@ 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,
@@ -1398,7 +1399,7 @@ 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 1003b502075208d4252c27ffdacb1aaf4928639b..bcc28031eb7aa4ba175b5552f5449e69c6af5e61 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);
--
2.52.0
next prev parent reply other threads:[~2025-12-18 17:10 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-18 17:09 [PATCH v18 00/12] Support page table check on PowerPC Andrew Donnellan
2025-12-18 17:09 ` [PATCH v18 01/12] arm64/mm: Add addr parameter to __set_ptes_anysz() Andrew Donnellan
2025-12-18 17:49 ` Pasha Tatashin
2025-12-18 17:09 ` Andrew Donnellan [this message]
2025-12-18 17:49 ` [PATCH v18 02/12] arm64/mm: Add addr parameter to __ptep_get_and_clear_anysz() Pasha Tatashin
2025-12-18 17:09 ` [PATCH v18 03/12] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pud[s]_set() Andrew Donnellan
2025-12-18 17:09 ` [PATCH v18 04/12] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pmd[s]_set() Andrew Donnellan
2025-12-18 17:09 ` [PATCH v18 05/12] mm/page_table_check: Provide addr parameter to page_table_check_ptes_set() Andrew Donnellan
2025-12-18 17:09 ` [PATCH v18 06/12] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pud_clear() Andrew Donnellan
2025-12-18 17:09 ` [PATCH v18 07/12] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pmd_clear() Andrew Donnellan
2025-12-18 17:09 ` [PATCH v18 08/12] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pte_clear() Andrew Donnellan
2025-12-18 17:09 ` [PATCH v18 09/12] mm: Provide address parameter to p{te,md,ud}_user_accessible_page() Andrew Donnellan
2025-12-18 17:09 ` [PATCH v18 10/12] powerpc/mm: Implement *_user_accessible_page() for ptes Andrew Donnellan
2025-12-18 17:09 ` [PATCH v18 11/12] powerpc/mm: Use set_pte_at_unchecked() for internal usages Andrew Donnellan
2025-12-18 17:09 ` [PATCH v18 12/12] powerpc/mm: Support page table check Andrew Donnellan
2025-12-18 17:55 ` [PATCH v18 00/12] Support page table check on PowerPC Pasha Tatashin
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