* + arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz.patch added to mm-new branch
@ 2025-08-13 23:05 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2025-08-13 23:05 UTC (permalink / raw)
To: mm-commits, will, sweettea-kernel, rmclure, pasha.tatashin,
nicholas, mingo, maddy, christophe.leroy, catalin.marinas, ajd,
akpm
The patch titled
Subject: arm64/mm: add addr parameter to __ptep_get_and_clear_anysz()
has been added to the -mm mm-new branch. Its filename is
arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz.patch
This patch will later appear in the mm-new branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews. Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Andrew Donnellan <ajd@linux.ibm.com>
Subject: arm64/mm: add addr parameter to __ptep_get_and_clear_anysz()
Date: Wed, 13 Aug 2025 16:26:03 +1000
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.
Link: https://lkml.kernel.org/r/20250813062614.51759-3-ajd@linux.ibm.com
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Nicholas Miehlbradt <nicholas@linux.ibm.com>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Rohan McLure <rmclure@linux.ibm.com>
Cc: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
arch/arm64/include/asm/pgtable.h | 5 +++--
arch/arm64/mm/hugetlbpage.c | 7 ++++---
2 files changed, 7 insertions(+), 5 deletions(-)
--- a/arch/arm64/include/asm/pgtable.h~arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz
+++ a/arch/arm64/include/asm/pgtable.h
@@ -1357,6 +1357,7 @@ static inline int pmdp_test_and_clear_yo
#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
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
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 */
--- a/arch/arm64/mm/hugetlbpage.c~arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz
+++ a/arch/arm64/mm/hugetlbpage.c
@@ -159,11 +159,12 @@ static pte_t get_clear_contig(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
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);
_
Patches currently in -mm which might be from ajd@linux.ibm.com are
arm64-mm-add-addr-parameter-to-__set_ptes_anysz.patch
arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz.patch
^ permalink raw reply [flat|nested] 2+ messages in thread* + arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz.patch added to mm-new branch
@ 2026-01-16 0:25 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2026-01-16 0:25 UTC (permalink / raw)
To: mm-commits, ziy, zhengqi.arch, willy, vishal.moola, thuth,
sweettea-kernel, rmclure, ritesh.list, paulus, pasha.tatashin,
npiggin, nicholas, mpe, mingo, maddy, linmag7, kevin.brodsky, jgg,
guoweikang.kernel, donettom, david, christophe.leroy, chleroy,
apopple, alexghiti, alex, agordeev, ajd, akpm
The patch titled
Subject: arm64/mm: add addr parameter to __ptep_get_and_clear_anysz()
has been added to the -mm mm-new branch. Its filename is
arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz.patch
This patch will later appear in the mm-new branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews. Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.
The mm-new branch of mm.git is not included in linux-next
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via various
branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there most days
------------------------------------------------------
From: Andrew Donnellan <ajd@linux.ibm.com>
Subject: arm64/mm: add addr parameter to __ptep_get_and_clear_anysz()
Date: Fri, 19 Dec 2025 04:09:34 +1100
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.
Link: https://lkml.kernel.org/r/20251219-pgtable_check_v18rebase-v18-2-755bc151a50b@linux.ibm.com
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
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: Ingo Molnar <mingo@kernel.org>
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: Rohan McLure <rmclure@linux.ibm.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>
---
arch/arm64/include/asm/pgtable.h | 5 +++--
arch/arm64/mm/hugetlbpage.c | 7 ++++---
2 files changed, 7 insertions(+), 5 deletions(-)
--- a/arch/arm64/include/asm/pgtable.h~arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz
+++ a/arch/arm64/include/asm/pgtable.h
@@ -1332,6 +1332,7 @@ static inline int pmdp_test_and_clear_yo
#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
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
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 */
--- a/arch/arm64/mm/hugetlbpage.c~arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz
+++ a/arch/arm64/mm/hugetlbpage.c
@@ -155,11 +155,12 @@ static pte_t get_clear_contig(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);
@@ -203,7 +204,7 @@ static void clear_flush(struct mm_struct
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);
_
Patches currently in -mm which might be from ajd@linux.ibm.com are
arm64-mm-add-addr-parameter-to-__set_ptes_anysz.patch
arm64-mm-add-addr-parameter-to-__ptep_get_and_clear_anysz.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
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