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Wed, 25 Jun 2025 06:38:35 +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 05/13] mm/page_table_check: Provide addr parameter to [__]page_table_check_ptes_set() Date: Wed, 25 Jun 2025 16:37:45 +1000 Message-ID: <20250625063753.77511-6-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> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=M5FNKzws c=1 sm=1 tr=0 ts=685ba5fe cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=6IFa9wvqVegA:10 a=VnNF1IyMAAAA:8 a=7ipKWUHlAAAA:8 a=UVT5Uxx9rTNGLfuASP4A:9 a=gpc5p9EgBqZVLdJeV_V1:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNjI1MDA1MyBTYWx0ZWRfX2nMa5uLzSSEA 5X2uboYAF1YmbDu9JtYgYYmyboW9oxIHT2K9EoZdPpdY/oISzouWtkVYVME7b4mu+XQ3x1V5geA +wzLABnjWDYmQ5+IVQNUHYYmuubAuKdn6VseEeqhQndgeuVskxfUlm+IlFuo8Jfvn1XP3/Hvz4N P94p9fOYbFugBelNIVu1BhGb1E1UgmAxHDSzWgfmGzssOP2wOLRDzTNUiYjFiRR90fU8Tjvp7C+ bIY/g76FfqIbNAC9INy+IZmgUU0RZye5JXMKVjoBabmInMKIBguwKRzizW9CKJ7G1pYHOWqEBty avzAFq5B/bCdxIZwnPNtmjdC6key5f/qZA+d+cZ3HEGRutpGUM9TrQMlKpmjdE9rRyojAWizDuU oEf6VXmf464qEuTyIZLy34nOZEeFtEZ/l37Ed7QPWqhp6zBxf375NGarCOcrb4ZKvpauc4HH X-Proofpoint-GUID: HUcES6SWk-Vz2agbVgpCKVh_AX4lJpCX X-Proofpoint-ORIG-GUID: HUcES6SWk-Vz2agbVgpCKVh_AX4lJpCX 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 lowpriorityscore=0 bulkscore=0 malwarescore=0 impostorscore=0 suspectscore=0 priorityscore=1501 phishscore=0 spamscore=0 clxscore=1015 adultscore=0 mlxscore=0 mlxlogscore=792 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2506250053 X-Rspamd-Queue-Id: 8E86480004 X-Rspam-User: X-Rspamd-Server: rspam06 X-Stat-Signature: o7aedk6p4d9a4rymor7honx944tudchx X-HE-Tag: 1750836741-580854 X-HE-Meta: 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 eP2u10Kn 5Vh8HEzUveqfZiqjsY95orhzqtM8kniPSvrDB2R+k9TZbFk/DbZ+BC/ALZdU/sqS5Ry/dghaFRNfH80YwnZSN7PxIlPhI9s7dB4cxnOHzVpu4rh7doZEFB/YNeAfQMugpAQbWBREwmRy5LZIDpRvS6zYy1L0DpelqMJSUh/Mqj6/tDDmjETnQ7QlFsDFWDFezQdb7WEu8ne3PlyOqpTLYQ0qR/z+TUlrQsZ6/wmBS+e25tm/4JpBcJznpBMODJfpuUYdWwQ7eNU+JFfrihza8KXm9hrL5qlKrUMLKXiTp6/lU2o5CuclIJadthgBZsjObo8p9qUcZnrZRTlZ8FAfOJ1PuKVaz5kv7Z5RtiMd3F00zD437gsD8qCZIWW8FdK16DqvqNqvJrZtdhQBsvJW54NN8go0gjw9lMQ13d+iHCoLcrd36OpaEGqqOWw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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 whether 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 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/pgtable.h index 0d34157106ee..383c01f9cae9 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -720,7 +720,7 @@ static inline void __set_ptes_anysz(struct mm_struct *mm, unsigned long addr, 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/pgtable.h index 62778ccdcf52..7b292af35f4b 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -572,7 +572,7 @@ static inline void __set_pte_at(struct mm_struct *mm, pte_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); for (;;) { __set_pte_at(mm, ptep, pteval); diff --git a/include/linux/page_table_check.h b/include/linux/page_table_check.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) } 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; - __page_table_check_ptes_set(mm, ptep, pte, nr); + __page_table_check_ptes_set(mm, addr, ptep, pte, nr); } 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) } 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) { } diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index 0b6e1f781d86..d06b5fec9540 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); 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))); } -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; -- 2.49.0