From: Andrew Morton <akpm@linux-foundation.org>
To: Andrew Donnellan <ajd@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org, x86@kernel.org,
linux-mm@kvack.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
Subject: Re: [PATCH v13 04/11] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pud_clear()
Date: Thu, 13 Mar 2025 16:10:38 -0700 [thread overview]
Message-ID: <20250313161038.8bd10fa54778e984d8f849d7@linux-foundation.org> (raw)
In-Reply-To: <20250211161404.850215-5-ajd@linux.ibm.com>
On Wed, 12 Feb 2025 03:13:57 +1100 Andrew Donnellan <ajd@linux.ibm.com> wrote:
> This reverts commit 931c38e16499 ("mm/page_table_check: remove unused
> parameter in [__]page_table_check_pud_clear").
>
> Reinstate previously unused parameters for the purpose of supporting
> powerpc platforms, as many do not encode user/kernel ownership of the
> page in the pte, but instead in the address of the access.
My x86-64 allmodconfig exploded.
./arch/x86/include/asm/pgtable.h: In function 'pudp_establish':
./arch/x86/include/asm/pgtable.h:1443:46: error: passing argument 2 of 'page_table_check_pud_set' makes integer from pointer without a cast [-Werror=int-conversion]
1443 | page_table_check_pud_set(vma->vm_mm, pudp, pud);
| ^~~~
| |
| pud_t *
#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
static inline pud_t pudp_establish(struct vm_area_struct *vma,
unsigned long address, pud_t *pudp, pud_t pud)
{
page_table_check_pud_set(vma->vm_mm, pudp, pud);
...
next prev parent reply other threads:[~2025-03-13 23:10 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-11 16:13 [PATCH v13 00/11] Support page table check on PowerPC Andrew Donnellan
2025-02-11 16:13 ` [PATCH v13 01/11] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pud_set() Andrew Donnellan
2025-02-11 16:13 ` [PATCH v13 02/11] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pmd_set() Andrew Donnellan
2025-02-11 16:13 ` [PATCH v13 03/11] mm/page_table_check: Provide addr parameter to page_table_check_pte_set() Andrew Donnellan
2025-02-11 16:13 ` [PATCH v13 04/11] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pud_clear() Andrew Donnellan
2025-03-13 23:10 ` Andrew Morton [this message]
2025-04-11 5:52 ` Andrew Donnellan
2025-02-11 16:13 ` [PATCH v13 05/11] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pmd_clear() Andrew Donnellan
2025-02-11 16:13 ` [PATCH v13 06/11] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pte_clear() Andrew Donnellan
2025-02-11 16:14 ` [PATCH v13 07/11] mm: Provide address parameter to p{te,md,ud}_user_accessible_page() Andrew Donnellan
2025-02-11 16:14 ` [PATCH v13 08/11] powerpc: mm: Add pud_pfn() stub Andrew Donnellan
2025-02-11 16:14 ` [PATCH v13 09/11] powerpc: mm: Implement *_user_accessible_page() for ptes Andrew Donnellan
2025-02-11 16:14 ` [PATCH v13 10/11] powerpc: mm: Use set_pte_at_unchecked() for internal usages Andrew Donnellan
2025-02-11 16:14 ` [PATCH v13 11/11] powerpc: mm: Support page table check Andrew Donnellan
2025-03-13 2:54 ` [PATCH v13 00/11] Support page table check on PowerPC Andrew Donnellan
2025-03-13 22:47 ` Andrew Morton
2025-03-18 5:38 ` Madhavan Srinivasan
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