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authorRohan McLure <rmclure@linux.ibm.com>2025-12-19 04:09:39 +1100
committerAndrew Morton <akpm@linux-foundation.org>2026-01-26 20:02:35 -0800
commit649ec9e3d03c4908ef51731cd7b422c4a3e2ccff (patch)
tree009401936869ce3c2f795c133ebbf847097b035a /arch
parent2e6ac078ce5d6a9dc96cab861359faac508eb56d (diff)
mm/page_table_check: reinstate address parameter in [__]page_table_check_pmd_clear()
This reverts commit 1831414cd729 ("mm/page_table_check: remove unused parameter in [__]page_table_check_pmd_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. [ajd@linux.ibm.com: rebase on arm64 changes] Link: https://lkml.kernel.org/r/20251219-pgtable_check_v18rebase-v18-7-755bc151a50b@linux.ibm.com Signed-off-by: Rohan McLure <rmclure@linux.ibm.com> Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com> Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com> Acked-by: Ingo Molnar <mingo@kernel.org> # x86 Acked-by: Alexandre Ghiti <alexghiti@rivosinc.com> # riscv Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Alistair Popple <apopple@nvidia.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: "Christophe Leroy (CS GROUP)" <chleroy@kernel.org> Cc: David Hildenbrand <david@kernel.org> Cc: Donet Tom <donettom@linux.ibm.com> Cc: Guo Weikang <guoweikang.kernel@gmail.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Magnus Lindholm <linmag7@gmail.com> Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Miehlbradt <nicholas@linux.ibm.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Qi Zheng <zhengqi.arch@bytedance.com> Cc: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com> Cc: Sweet Tea Dorminy <sweettea-kernel@dorminy.me> Cc: Thomas Huth <thuth@redhat.com> Cc: "Vishal Moola (Oracle)" <vishal.moola@gmail.com> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm64/include/asm/pgtable.h2
-rw-r--r--arch/riscv/include/asm/pgtable.h2
-rw-r--r--arch/x86/include/asm/pgtable.h2
3 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 595405e6bfc7..5abad90913eb 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -1345,7 +1345,7 @@ static inline pte_t __ptep_get_and_clear_anysz(struct mm_struct *mm,
page_table_check_pte_clear(mm, pte);
break;
case PMD_SIZE:
- page_table_check_pmd_clear(mm, pte_pmd(pte));
+ page_table_check_pmd_clear(mm, address, pte_pmd(pte));
break;
#ifndef __PAGETABLE_PMD_FOLDED
case PUD_SIZE:
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index e06727c975fe..6464a2c18ebe 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -1007,7 +1007,7 @@ static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
pmd_clear(pmdp);
#endif
- page_table_check_pmd_clear(mm, pmd);
+ page_table_check_pmd_clear(mm, address, pmd);
return pmd;
}
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 3eb36a36058f..5a2b2d3a80d8 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -1319,7 +1319,7 @@ static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm, unsigned long
{
pmd_t pmd = native_pmdp_get_and_clear(pmdp);
- page_table_check_pmd_clear(mm, pmd);
+ page_table_check_pmd_clear(mm, addr, pmd);
return pmd;
}