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Tue, 9 Sep 2025 09:14:46 +0000 (GMT) From: Andrew Donnellan To: linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org Cc: akpm@linux-foundation.org, x86@kernel.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, nicholas@linux.ibm.com, christophe.leroy@csgroup.eu, alexghiti@rivosinc.com Subject: [PATCH v17 05/12] mm/page_table_check: Provide addr parameter to page_table_check_ptes_set() Date: Tue, 9 Sep 2025 19:13:28 +1000 Message-ID: <20250909091335.183439-6-ajd@linux.ibm.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250909091335.183439-1-ajd@linux.ibm.com> References: <20250909091335.183439-1-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-GUID: uCQOFUQjBvrOpyONrMmQQ4TAF6bz24UD X-Authority-Analysis: v=2.4 cv=Mp1S63ae c=1 sm=1 tr=0 ts=68bff00d cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=yJojWOMRYYMA:10 a=VnNF1IyMAAAA:8 a=7ipKWUHlAAAA:8 a=h0uksLzaAAAA:8 a=UVT5Uxx9rTNGLfuASP4A:9 a=gpc5p9EgBqZVLdJeV_V1:22 a=MSi_79tMYmZZG2gvAgS0:22 X-Proofpoint-ORIG-GUID: uCQOFUQjBvrOpyONrMmQQ4TAF6bz24UD X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTA2MDAwMCBTYWx0ZWRfXxvNB7D6bUmoG A3Q4yiWb3FrEoNw9/6pXRSrIvYdWycajS8HuZlois6ZIdVt/Zo9PFs8hdgY5HxXxHKfjMkgS3n7 JuegerxW/khXm0OgUwrwoZFQgR4rxx2rtDyvSNgEGoyIjUk+3+76enrzR63FE3PRQb4Z1fsHV4X dPZLMTxgIUt80e9GpAKKZkvaXFCoEJRPpCPEX6AnCk3mPIjgo0VBAc02HpXCi2GNVEuBZpxA8SJ 8Ao/6dsHwqdNZiVRv+/dZxOkNUvLCVfI7Sz24aZXCiPXRD5UskzM6YMN6H4rhiT6JkEHVb8KIcK hBWtGyGCscNw7Y6pS5P7z6jznc7ytmZJadq28EGKT4CNSIPZHDF79kLR06ZCWjA8hIMO/jCCEdT 2u7ZaBVz X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-08_06,2025-09-08_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 malwarescore=0 clxscore=1015 phishscore=0 spamscore=0 adultscore=0 priorityscore=1501 bulkscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509060000 Content-Type: text/plain; charset="utf-8" From: Rohan McLure To provide support for powerpc platforms, provide an addr parameter to the __page_table_check_ptes_set() and page_table_check_ptes_set() routines. This parameter is needed on some powerpc platforms which do not encode whet= her a mapping is for user or kernel in the pte. On such platforms, this can be inferred from the addr parameter. [ajd@linux.ibm.com: rebase on arm64 + riscv changes, update commit message] Signed-off-by: Rohan McLure Reviewed-by: Pasha Tatashin Acked-by: Alexandre Ghiti # riscv Signed-off-by: Andrew Donnellan --- v15: rebase, amend commit message --- arch/arm64/include/asm/pgtable.h | 2 +- arch/riscv/include/asm/pgtable.h | 2 +- include/linux/page_table_check.h | 12 +++++++----- include/linux/pgtable.h | 2 +- mm/page_table_check.c | 4 ++-- 5 files changed, 12 insertions(+), 10 deletions(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgta= ble.h index 9fe3af8b4cad..06ea6a4f300b 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -706,7 +706,7 @@ static inline void __set_ptes_anysz(struct mm_struct *m= m, unsigned long addr, =20 switch (pgsize) { case PAGE_SIZE: - page_table_check_ptes_set(mm, ptep, pte, nr); + page_table_check_ptes_set(mm, addr, ptep, pte, nr); break; case PMD_SIZE: page_table_check_pmds_set(mm, addr, (pmd_t *)ptep, diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgta= ble.h index 98e56d4ff840..bef95776504d 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -560,7 +560,7 @@ static inline void __set_pte_at(struct mm_struct *mm, p= te_t *ptep, pte_t pteval) static inline void set_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pteval, unsigned int nr) { - page_table_check_ptes_set(mm, ptep, pteval, nr); + page_table_check_ptes_set(mm, addr, ptep, pteval, nr); =20 for (;;) { __set_pte_at(mm, ptep, pteval); diff --git a/include/linux/page_table_check.h b/include/linux/page_table_ch= eck.h index cf7c28d8d468..66e109238416 100644 --- a/include/linux/page_table_check.h +++ b/include/linux/page_table_check.h @@ -17,8 +17,8 @@ void __page_table_check_zero(struct page *page, unsigned = int order); void __page_table_check_pte_clear(struct mm_struct *mm, pte_t pte); void __page_table_check_pmd_clear(struct mm_struct *mm, pmd_t pmd); void __page_table_check_pud_clear(struct mm_struct *mm, pud_t pud); -void __page_table_check_ptes_set(struct mm_struct *mm, pte_t *ptep, pte_t = pte, - unsigned int nr); +void __page_table_check_ptes_set(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte, unsigned int nr); void __page_table_check_pmds_set(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, pmd_t pmd, unsigned int nr); void __page_table_check_puds_set(struct mm_struct *mm, unsigned long addr, @@ -68,12 +68,13 @@ static inline void page_table_check_pud_clear(struct mm= _struct *mm, pud_t pud) } =20 static inline void page_table_check_ptes_set(struct mm_struct *mm, - pte_t *ptep, pte_t pte, unsigned int nr) + unsigned long addr, pte_t *ptep, + pte_t pte, unsigned int nr) { if (static_branch_likely(&page_table_check_disabled)) return; =20 - __page_table_check_ptes_set(mm, ptep, pte, nr); + __page_table_check_ptes_set(mm, addr, ptep, pte, nr); } =20 static inline void page_table_check_pmds_set(struct mm_struct *mm, @@ -127,7 +128,8 @@ static inline void page_table_check_pud_clear(struct mm= _struct *mm, pud_t pud) } =20 static inline void page_table_check_ptes_set(struct mm_struct *mm, - pte_t *ptep, pte_t pte, unsigned int nr) + unsigned long addr, pte_t *ptep, + pte_t pte, unsigned int nr) { } =20 diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index 94249e671a7e..a422fdf31ffb 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -289,7 +289,7 @@ static inline pte_t pte_advance_pfn(pte_t pte, unsigned= long nr) static inline void set_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte, unsigned int nr) { - page_table_check_ptes_set(mm, ptep, pte, nr); + page_table_check_ptes_set(mm, addr, ptep, pte, nr); =20 for (;;) { set_pte(ptep, pte); diff --git a/mm/page_table_check.c b/mm/page_table_check.c index 09258f2ad93f..0957767a2940 100644 --- a/mm/page_table_check.c +++ b/mm/page_table_check.c @@ -193,8 +193,8 @@ static inline void page_table_check_pte_flags(pte_t pte) WARN_ON_ONCE(swap_cached_writable(pte_to_swp_entry(pte))); } =20 -void __page_table_check_ptes_set(struct mm_struct *mm, pte_t *ptep, pte_t = pte, - unsigned int nr) +void __page_table_check_ptes_set(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte, unsigned int nr) { unsigned int i; =20 --=20 2.51.0