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Wed, 25 Jun 2025 06:38:14 +0000 (GMT) From: Andrew Donnellan To: linuxppc-dev@lists.ozlabs.org, pasha.tatashin@soleen.com, akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, x86@kernel.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, sweettea-kernel@dorminy.me, christophe.leroy@csgroup.eu, mingo@kernel.org Subject: [PATCH v15 02/13] arm64/mm: Add addr parameter to __ptep_get_and_clear_anysz() Date: Wed, 25 Jun 2025 16:37:42 +1000 Message-ID: <20250625063753.77511-3-ajd@linux.ibm.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250625063753.77511-1-ajd@linux.ibm.com> References: <20250625063753.77511-1-ajd@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: ERvA2OObeogm-T28-OBTZ7tVkYis0lf0 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNjI1MDA1MyBTYWx0ZWRfXzTgFKnfmD4gT YNsx9/KW1PwZoSgOagNwdlypnuJsUxSDQceN6XFzAxZ9PSsFF6Z//hTUmVDyFsIqeNc/UF6O3dm G2lFEHtIcldXDOuJ7MPWFpW1xVb33SD5Um5NOlnEYQSXU+NAy02qgUvq8P7LqfQom5VKyVaYqKD viE0ytqAz6OWHQdzFQUocDAhdEhOl1qmvfrsYjLbDzz/1su9i547CGTD+4KDIkDeXVIg4lDyTYC hRtjF34rPNfdNkwo7cI7MLbAh4+MUL90JZ47TtdZEuzISH4UBZgJn5ZhgNWvxUZnRuUfz7Xqke6 lPH+/f/zU+p7VAZ+59dMFdu92UFmRGhht82uZhHSjOd+nCuGjJ+1ZNEQsv8yud07M4irk1amG4a DvbUPgQtjYUq5W7+hVUcDHWuQEVOMxBsLPaVEoUATDP4h1d4Wr4A6ngyF+xb4pS8S9TThZwo X-Authority-Analysis: v=2.4 cv=MshS63ae c=1 sm=1 tr=0 ts=685ba5ee cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=6IFa9wvqVegA:10 a=VnNF1IyMAAAA:8 a=4PT1ayd0SIKHQ98-h3UA:9 X-Proofpoint-GUID: ERvA2OObeogm-T28-OBTZ7tVkYis0lf0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.7,FMLib:17.12.80.40 definitions=2025-06-25_01,2025-06-23_07,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 bulkscore=0 lowpriorityscore=0 spamscore=0 mlxlogscore=766 impostorscore=0 clxscore=1015 phishscore=0 malwarescore=0 suspectscore=0 adultscore=0 priorityscore=1501 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2506250053 Content-Type: text/plain; charset="utf-8" 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. While th= is parameter won't (at present) be used on arm64, this will keep the usage of the page table check interfaces consistent. Signed-off-by: Andrew Donnellan --- 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/pgta= ble.h index acbcb5e883ce..75572a08c012 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -1381,6 +1381,7 @@ static inline int pmdp_test_and_clear_young(struct vm= _area_struct *vma, #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG= */ =20 static inline pte_t __ptep_get_and_clear_anysz(struct mm_struct *mm, + unsigned long address, pte_t *ptep, unsigned long pgsize) { @@ -1408,7 +1409,7 @@ 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); } =20 static inline void __clear_full_ptes(struct mm_struct *mm, unsigned long a= ddr, @@ -1447,7 +1448,7 @@ 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 */ =20 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; =20 - pte =3D __ptep_get_and_clear_anysz(mm, ptep, pgsize); + pte =3D __ptep_get_and_clear_anysz(mm, addr, ptep, pgsize); present =3D pte_present(pte); while (--ncontig) { ptep++; - tmp_pte =3D __ptep_get_and_clear_anysz(mm, ptep, pgsize); + addr +=3D pgsize; + tmp_pte =3D __ptep_get_and_clear_anysz(mm, addr, ptep, pgsize); if (present) { if (pte_dirty(tmp_pte)) pte =3D pte_mkdirty(pte); @@ -207,7 +208,7 @@ static void clear_flush(struct mm_struct *mm, unsigned long i, saddr =3D addr; =20 for (i =3D 0; i < ncontig; i++, addr +=3D pgsize, ptep++) - __ptep_get_and_clear_anysz(mm, ptep, pgsize); + __ptep_get_and_clear_anysz(mm, addr, ptep, pgsize); =20 if (mm =3D=3D &init_mm) flush_tlb_kernel_range(saddr, addr); --=20 2.49.0