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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org This reverts commit aa232204c4689427cefa55fe975692b57291523a. 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. Signed-off-by: Rohan McLure --- arch/arm64/include/asm/pgtable.h | 2 +- arch/riscv/include/asm/pgtable.h | 2 +- arch/x86/include/asm/pgtable.h | 4 ++-- include/linux/page_table_check.h | 11 +++++++---- include/linux/pgtable.h | 2 +- mm/page_table_check.c | 7 ++++--- 6 files changed, 16 insertions(+), 12 deletions(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index d20afcfae530..040c2e664cff 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -1145,7 +1145,7 @@ static inline pte_t __ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = __pte(xchg_relaxed(&pte_val(*ptep), 0)); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 0066626159a5..92bf5c309055 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -563,7 +563,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = __pte(atomic_long_xchg((atomic_long_t *)ptep, 0)); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 9876e6d92799..b2b3902f8df4 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -1276,7 +1276,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { pte_t pte = native_ptep_get_and_clear(ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, addr, pte); return pte; } @@ -1292,7 +1292,7 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, * care about updates and native needs no locking */ pte = native_local_ptep_get_and_clear(ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, addr, pte); } else { pte = ptep_get_and_clear(mm, addr, ptep); } diff --git a/include/linux/page_table_check.h b/include/linux/page_table_check.h index 0a6ebfa46a31..48721a4a2b84 100644 --- a/include/linux/page_table_check.h +++ b/include/linux/page_table_check.h @@ -14,7 +14,8 @@ extern struct static_key_true page_table_check_disabled; extern struct page_ext_operations page_table_check_ops; 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_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t pte); void __page_table_check_pmd_clear(struct mm_struct *mm, unsigned long addr, pmd_t pmd); void __page_table_check_pud_clear(struct mm_struct *mm, unsigned long addr, @@ -45,12 +46,13 @@ static inline void page_table_check_free(struct page *page, unsigned int order) __page_table_check_zero(page, order); } -static inline void page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +static inline void page_table_check_pte_clear(struct mm_struct *mm, + unsigned long addr, pte_t pte) { if (static_branch_likely(&page_table_check_disabled)) return; - __page_table_check_pte_clear(mm, pte); + __page_table_check_pte_clear(mm, addr, pte); } static inline void page_table_check_pmd_clear(struct mm_struct *mm, @@ -121,7 +123,8 @@ static inline void page_table_check_free(struct page *page, unsigned int order) { } -static inline void page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +static inline void page_table_check_pte_clear(struct mm_struct *mm, + unsigned long addr, pte_t pte) { } diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index d17fbca4da7b..7c18a1e55696 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -454,7 +454,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = ptep_get(ptep); pte_clear(mm, address, ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } #endif diff --git a/mm/page_table_check.c b/mm/page_table_check.c index 7afaad9c6e6f..98cccee74b02 100644 --- a/mm/page_table_check.c +++ b/mm/page_table_check.c @@ -149,7 +149,8 @@ void __page_table_check_zero(struct page *page, unsigned int order) page_ext_put(page_ext); } -void __page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +void __page_table_check_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t pte) { if (&init_mm == mm) return; @@ -193,7 +194,7 @@ void __page_table_check_ptes_set(struct mm_struct *mm, unsigned long addr, return; for (i = 0; i < nr; i++) - __page_table_check_pte_clear(mm, ptep_get(ptep + i)); + __page_table_check_pte_clear(mm, addr, ptep_get(ptep + i)); if (pte_user_accessible_page(pte)) page_table_check_set(pte_pfn(pte), nr, pte_write(pte)); } @@ -241,7 +242,7 @@ void __page_table_check_pte_clear_range(struct mm_struct *mm, if (WARN_ON(!ptep)) return; 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Thu, 28 Mar 2024 04:57:05 +0000 Received: from smtpav02.fra02v.mail.ibm.com (smtpav02.fra02v.mail.ibm.com [10.20.54.101]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 42S4v1MJ49021236 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 28 Mar 2024 04:57:03 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 809562004E; Thu, 28 Mar 2024 04:57:01 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A201B2004B; Thu, 28 Mar 2024 04:57:00 +0000 (GMT) Received: from ozlabs.au.ibm.com (unknown [9.192.253.14]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 28 Mar 2024 04:57:00 +0000 (GMT) Received: from socotra.ibm.com (unknown [9.66.88.97]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.au.ibm.com (Postfix) with ESMTPSA id 3BF5E600C9; Thu, 28 Mar 2024 15:56:54 +1100 (AEDT) From: Rohan McLure To: linuxppc-dev@lists.ozlabs.org Cc: Rohan McLure , mpe@ellerman.id.au, christophe.leroy@csgroup.eu, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, x86@kernel.org Subject: [PATCH v11 06/11] Revert "mm/page_table_check: remove unused parameter in [__]page_table_check_pte_clear" Date: Thu, 28 Mar 2024 15:55:26 +1100 Message-ID: <20240328045535.194800-9-rmclure@linux.ibm.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240328045535.194800-3-rmclure@linux.ibm.com> References: <20240328045535.194800-3-rmclure@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: j-0dPpIyhZyLAfAfM_1sTzF5V7Z9zWwN X-Proofpoint-ORIG-GUID: j-0dPpIyhZyLAfAfM_1sTzF5V7Z9zWwN X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-03-28_04,2024-03-27_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=762 bulkscore=0 impostorscore=0 mlxscore=0 clxscore=1015 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2403210000 definitions=main-2403280028 X-Rspamd-Queue-Id: 057102000C X-Rspam-User: X-Stat-Signature: 7fqqrwanhox3o7h4ejqt9e1wpt4dnogz X-Rspamd-Server: rspam03 X-HE-Tag: 1711601836-479250 X-HE-Meta: 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 rnSdzOKf apmnNLrhKzJFGX7zfO8yjEISvUV4sqM9hIlElHrmFWl3jOrUl6L1cFr2D4MhmsGg950Rvb9PHtQghIsBpeOJvG4LrKgTt0BdX6IEGd9ObZSkg8vHd0wFSjo/yvMEYCxD9papoESav4uW165tqsb94epWVqqXpAW96eoCNyLV0m2/oElc5em2jU6haq0dONnW6RfvdB5IhaFKreqtEdOrbd1AUTDSs1L+jI/50pHeTL6+xOA0iTtEw6mjYwzN7R0kyQMoVH5Qx8RWcHCc= 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: This reverts commit aa232204c4689427cefa55fe975692b57291523a. 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. Signed-off-by: Rohan McLure --- arch/arm64/include/asm/pgtable.h | 2 +- arch/riscv/include/asm/pgtable.h | 2 +- arch/x86/include/asm/pgtable.h | 4 ++-- include/linux/page_table_check.h | 11 +++++++---- include/linux/pgtable.h | 2 +- mm/page_table_check.c | 7 ++++--- 6 files changed, 16 insertions(+), 12 deletions(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index d20afcfae530..040c2e664cff 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -1145,7 +1145,7 @@ static inline pte_t __ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = __pte(xchg_relaxed(&pte_val(*ptep), 0)); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 0066626159a5..92bf5c309055 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -563,7 +563,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = __pte(atomic_long_xchg((atomic_long_t *)ptep, 0)); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 9876e6d92799..b2b3902f8df4 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -1276,7 +1276,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { pte_t pte = native_ptep_get_and_clear(ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, addr, pte); return pte; } @@ -1292,7 +1292,7 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, * care about updates and native needs no locking */ pte = native_local_ptep_get_and_clear(ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, addr, pte); } else { pte = ptep_get_and_clear(mm, addr, ptep); } diff --git a/include/linux/page_table_check.h b/include/linux/page_table_check.h index 0a6ebfa46a31..48721a4a2b84 100644 --- a/include/linux/page_table_check.h +++ b/include/linux/page_table_check.h @@ -14,7 +14,8 @@ extern struct static_key_true page_table_check_disabled; extern struct page_ext_operations page_table_check_ops; 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_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t pte); void __page_table_check_pmd_clear(struct mm_struct *mm, unsigned long addr, pmd_t pmd); void __page_table_check_pud_clear(struct mm_struct *mm, unsigned long addr, @@ -45,12 +46,13 @@ static inline void page_table_check_free(struct page *page, unsigned int order) __page_table_check_zero(page, order); } -static inline void page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +static inline void page_table_check_pte_clear(struct mm_struct *mm, + unsigned long addr, pte_t pte) { if (static_branch_likely(&page_table_check_disabled)) return; - __page_table_check_pte_clear(mm, pte); + __page_table_check_pte_clear(mm, addr, pte); } static inline void page_table_check_pmd_clear(struct mm_struct *mm, @@ -121,7 +123,8 @@ static inline void page_table_check_free(struct page *page, unsigned int order) { } -static inline void page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +static inline void page_table_check_pte_clear(struct mm_struct *mm, + unsigned long addr, pte_t pte) { } diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index d17fbca4da7b..7c18a1e55696 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -454,7 +454,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = ptep_get(ptep); pte_clear(mm, address, ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } #endif diff --git a/mm/page_table_check.c b/mm/page_table_check.c index 7afaad9c6e6f..98cccee74b02 100644 --- a/mm/page_table_check.c +++ b/mm/page_table_check.c @@ -149,7 +149,8 @@ void __page_table_check_zero(struct page *page, unsigned int order) page_ext_put(page_ext); } -void __page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +void __page_table_check_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t pte) { if (&init_mm == mm) return; @@ -193,7 +194,7 @@ void __page_table_check_ptes_set(struct mm_struct *mm, unsigned long addr, return; for (i = 0; i < nr; i++) - __page_table_check_pte_clear(mm, ptep_get(ptep + i)); + __page_table_check_pte_clear(mm, addr, ptep_get(ptep + i)); if (pte_user_accessible_page(pte)) page_table_check_set(pte_pfn(pte), nr, pte_write(pte)); } @@ -241,7 +242,7 @@ void __page_table_check_pte_clear_range(struct mm_struct *mm, if (WARN_ON(!ptep)) return; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This reverts commit aa232204c4689427cefa55fe975692b57291523a. 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. Signed-off-by: Rohan McLure --- arch/arm64/include/asm/pgtable.h | 2 +- arch/riscv/include/asm/pgtable.h | 2 +- arch/x86/include/asm/pgtable.h | 4 ++-- include/linux/page_table_check.h | 11 +++++++---- include/linux/pgtable.h | 2 +- mm/page_table_check.c | 7 ++++--- 6 files changed, 16 insertions(+), 12 deletions(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index d20afcfae530..040c2e664cff 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -1145,7 +1145,7 @@ static inline pte_t __ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = __pte(xchg_relaxed(&pte_val(*ptep), 0)); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 0066626159a5..92bf5c309055 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -563,7 +563,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = __pte(atomic_long_xchg((atomic_long_t *)ptep, 0)); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 9876e6d92799..b2b3902f8df4 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -1276,7 +1276,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { pte_t pte = native_ptep_get_and_clear(ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, addr, pte); return pte; } @@ -1292,7 +1292,7 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, * care about updates and native needs no locking */ pte = native_local_ptep_get_and_clear(ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, addr, pte); } else { pte = ptep_get_and_clear(mm, addr, ptep); } diff --git a/include/linux/page_table_check.h b/include/linux/page_table_check.h index 0a6ebfa46a31..48721a4a2b84 100644 --- a/include/linux/page_table_check.h +++ b/include/linux/page_table_check.h @@ -14,7 +14,8 @@ extern struct static_key_true page_table_check_disabled; extern struct page_ext_operations page_table_check_ops; 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_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t pte); void __page_table_check_pmd_clear(struct mm_struct *mm, unsigned long addr, pmd_t pmd); void __page_table_check_pud_clear(struct mm_struct *mm, unsigned long addr, @@ -45,12 +46,13 @@ static inline void page_table_check_free(struct page *page, unsigned int order) __page_table_check_zero(page, order); } -static inline void page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +static inline void page_table_check_pte_clear(struct mm_struct *mm, + unsigned long addr, pte_t pte) { if (static_branch_likely(&page_table_check_disabled)) return; - __page_table_check_pte_clear(mm, pte); + __page_table_check_pte_clear(mm, addr, pte); } static inline void page_table_check_pmd_clear(struct mm_struct *mm, @@ -121,7 +123,8 @@ static inline void page_table_check_free(struct page *page, unsigned int order) { } -static inline void page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +static inline void page_table_check_pte_clear(struct mm_struct *mm, + unsigned long addr, pte_t pte) { } diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index d17fbca4da7b..7c18a1e55696 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -454,7 +454,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = ptep_get(ptep); pte_clear(mm, address, ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } #endif diff --git a/mm/page_table_check.c b/mm/page_table_check.c index 7afaad9c6e6f..98cccee74b02 100644 --- a/mm/page_table_check.c +++ b/mm/page_table_check.c @@ -149,7 +149,8 @@ void __page_table_check_zero(struct page *page, unsigned int order) page_ext_put(page_ext); } -void __page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +void __page_table_check_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t pte) { if (&init_mm == mm) return; @@ -193,7 +194,7 @@ void __page_table_check_ptes_set(struct mm_struct *mm, unsigned long addr, return; for (i = 0; i < nr; i++) - __page_table_check_pte_clear(mm, ptep_get(ptep + i)); + __page_table_check_pte_clear(mm, addr, ptep_get(ptep + i)); if (pte_user_accessible_page(pte)) page_table_check_set(pte_pfn(pte), nr, pte_write(pte)); } @@ -241,7 +242,7 @@ void __page_table_check_pte_clear_range(struct mm_struct *mm, if (WARN_ON(!ptep)) return; 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Thu, 28 Mar 2024 15:56:54 +1100 (AEDT) From: Rohan McLure To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v11 06/11] Revert "mm/page_table_check: remove unused parameter in [__]page_table_check_pte_clear" Date: Thu, 28 Mar 2024 15:55:26 +1100 Message-ID: <20240328045535.194800-9-rmclure@linux.ibm.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240328045535.194800-3-rmclure@linux.ibm.com> References: <20240328045535.194800-3-rmclure@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: j-0dPpIyhZyLAfAfM_1sTzF5V7Z9zWwN X-Proofpoint-ORIG-GUID: j-0dPpIyhZyLAfAfM_1sTzF5V7Z9zWwN X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-03-28_04,2024-03-27_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=762 bulkscore=0 impostorscore=0 mlxscore=0 clxscore=1015 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2403210000 definitions=main-2403280028 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: x86@kernel.org, linux-mm@kvack.org, Rohan McLure , linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" This reverts commit aa232204c4689427cefa55fe975692b57291523a. 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. Signed-off-by: Rohan McLure --- arch/arm64/include/asm/pgtable.h | 2 +- arch/riscv/include/asm/pgtable.h | 2 +- arch/x86/include/asm/pgtable.h | 4 ++-- include/linux/page_table_check.h | 11 +++++++---- include/linux/pgtable.h | 2 +- mm/page_table_check.c | 7 ++++--- 6 files changed, 16 insertions(+), 12 deletions(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index d20afcfae530..040c2e664cff 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -1145,7 +1145,7 @@ static inline pte_t __ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = __pte(xchg_relaxed(&pte_val(*ptep), 0)); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 0066626159a5..92bf5c309055 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -563,7 +563,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = __pte(atomic_long_xchg((atomic_long_t *)ptep, 0)); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 9876e6d92799..b2b3902f8df4 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -1276,7 +1276,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { pte_t pte = native_ptep_get_and_clear(ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, addr, pte); return pte; } @@ -1292,7 +1292,7 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, * care about updates and native needs no locking */ pte = native_local_ptep_get_and_clear(ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, addr, pte); } else { pte = ptep_get_and_clear(mm, addr, ptep); } diff --git a/include/linux/page_table_check.h b/include/linux/page_table_check.h index 0a6ebfa46a31..48721a4a2b84 100644 --- a/include/linux/page_table_check.h +++ b/include/linux/page_table_check.h @@ -14,7 +14,8 @@ extern struct static_key_true page_table_check_disabled; extern struct page_ext_operations page_table_check_ops; 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_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t pte); void __page_table_check_pmd_clear(struct mm_struct *mm, unsigned long addr, pmd_t pmd); void __page_table_check_pud_clear(struct mm_struct *mm, unsigned long addr, @@ -45,12 +46,13 @@ static inline void page_table_check_free(struct page *page, unsigned int order) __page_table_check_zero(page, order); } -static inline void page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +static inline void page_table_check_pte_clear(struct mm_struct *mm, + unsigned long addr, pte_t pte) { if (static_branch_likely(&page_table_check_disabled)) return; - __page_table_check_pte_clear(mm, pte); + __page_table_check_pte_clear(mm, addr, pte); } static inline void page_table_check_pmd_clear(struct mm_struct *mm, @@ -121,7 +123,8 @@ static inline void page_table_check_free(struct page *page, unsigned int order) { } -static inline void page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +static inline void page_table_check_pte_clear(struct mm_struct *mm, + unsigned long addr, pte_t pte) { } diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index d17fbca4da7b..7c18a1e55696 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -454,7 +454,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, { pte_t pte = ptep_get(ptep); pte_clear(mm, address, ptep); - page_table_check_pte_clear(mm, pte); + page_table_check_pte_clear(mm, address, pte); return pte; } #endif diff --git a/mm/page_table_check.c b/mm/page_table_check.c index 7afaad9c6e6f..98cccee74b02 100644 --- a/mm/page_table_check.c +++ b/mm/page_table_check.c @@ -149,7 +149,8 @@ void __page_table_check_zero(struct page *page, unsigned int order) page_ext_put(page_ext); } -void __page_table_check_pte_clear(struct mm_struct *mm, pte_t pte) +void __page_table_check_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t pte) { if (&init_mm == mm) return; @@ -193,7 +194,7 @@ void __page_table_check_ptes_set(struct mm_struct *mm, unsigned long addr, return; for (i = 0; i < nr; i++) - __page_table_check_pte_clear(mm, ptep_get(ptep + i)); + __page_table_check_pte_clear(mm, addr, ptep_get(ptep + i)); if (pte_user_accessible_page(pte)) page_table_check_set(pte_pfn(pte), nr, pte_write(pte)); } @@ -241,7 +242,7 @@ void __page_table_check_pte_clear_range(struct mm_struct *mm, if (WARN_ON(!ptep)) return; for (i = 0; i < PTRS_PER_PTE; i++) { - __page_table_check_pte_clear(mm, ptep_get(ptep)); + __page_table_check_pte_clear(mm, addr, ptep_get(ptep)); addr += PAGE_SIZE; ptep++; } -- 2.44.0