From nobody Fri Dec 19 19:02:45 2025 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4EF083396F3 for ; Thu, 18 Dec 2025 17:10:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.158.5 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766077844; cv=none; b=N70tVvmvuGL21gCgjTW4YyfKclzM4sAxnB9jW6HvAMBjz2Oq6v4E4OArLzb5+hOlZ2vbPZG8dZp7hKiKcvIgTTpesQ0ID+XIYQlm07G7yDZa9XCx3CP1phqBdnJM/EqWvr9yFXPms9qfbAbLimFVJWy+TWpMDscORhFhijq5OpQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766077844; c=relaxed/simple; bh=qV7cAG8OLeZG5nAlfl0Drg3cGk7xbl55eT/8KogyWg4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=OzBqygVebhZyRnycXoG9AmEXLaS5chp2qd+jcYIerXsMl0SHrl2qLJZjsronncJzsKYPuv8yNy8g+bL1nA5FTx4AMNETaHJ7QJF1fMDAkZGATzZaCNDoxjva18FA+TYHk0ZVFOojp2roJD9fZo1K5dGRq3Jtylyq7aI3LdnsKXs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=B4YoubLk; arc=none smtp.client-ip=148.163.158.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="B4YoubLk" Received: from pps.filterd (m0356516.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 5BIBsbri010214; Thu, 18 Dec 2025 17:10:23 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pp1; bh=eqiA4l K/eMX5KF8yo+8Tkjj5ayTkYXzOx2oQ6QICjz0=; b=B4YoubLkE6md/sCVHzNrnT 5Sw7/ezimxyKlnlmafmpkJp+ldTkuAILIfax6B3Sh8Rbjd1a3z1+239rvACgtGQf dIotvxT6exKFYKF2uloF2OgAAGYNwoHCaUMw3/adPQr4W3D2IwkjFCVzpxQM61BI KEw9Xd6flsYQ5eBFnB65yrf3JDp/VDAeAK3wnHmfJlFIK2lgMerc3WuO7fFXKxdD CCTbJH35TnlXTIL3LDhwYPwe5HJxljiwtfNHvF47H6kRIlmzSPNPXPTMpyE3AcrA 0jZoFx1f126TutSqckRf4PMfwKjSMood+TTVUzrG+dBAnl8RQIiGKDO/lhaIvewA == Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4b0wjqb7ph-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 18 Dec 2025 17:10:23 +0000 (GMT) Received: from m0356516.ppops.net (m0356516.ppops.net [127.0.0.1]) by pps.reinject (8.18.1.12/8.18.0.8) with ESMTP id 5BIGwwWQ008341; Thu, 18 Dec 2025 17:10:22 GMT Received: from ppma23.wdc07v.mail.ibm.com (5d.69.3da9.ip4.static.sl-reverse.com [169.61.105.93]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4b0wjqb7pe-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 18 Dec 2025 17:10:22 +0000 (GMT) Received: from pps.filterd (ppma23.wdc07v.mail.ibm.com [127.0.0.1]) by ppma23.wdc07v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 5BIH2A6X002973; Thu, 18 Dec 2025 17:10:22 GMT Received: from smtprelay05.dal12v.mail.ibm.com ([172.16.1.7]) by ppma23.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4b1kym1ejt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 18 Dec 2025 17:10:22 +0000 Received: from smtpav03.dal12v.mail.ibm.com (smtpav03.dal12v.mail.ibm.com [10.241.53.102]) by smtprelay05.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 5BIHAKZR1376868 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 18 Dec 2025 17:10:20 GMT Received: from smtpav03.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C1AC25805A; Thu, 18 Dec 2025 17:10:20 +0000 (GMT) Received: from smtpav03.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 41FCE5803F; Thu, 18 Dec 2025 17:10:14 +0000 (GMT) Received: from jarvis.ozlabs.ibm.com (unknown [9.36.16.51]) by smtpav03.dal12v.mail.ibm.com (Postfix) with ESMTP; Thu, 18 Dec 2025 17:10:13 +0000 (GMT) From: Andrew Donnellan Date: Fri, 19 Dec 2025 04:09:36 +1100 Subject: [PATCH v18 04/12] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pmd[s]_set() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251219-pgtable_check_v18rebase-v18-4-755bc151a50b@linux.ibm.com> References: <20251219-pgtable_check_v18rebase-v18-0-755bc151a50b@linux.ibm.com> In-Reply-To: <20251219-pgtable_check_v18rebase-v18-0-755bc151a50b@linux.ibm.com> To: linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, Pasha Tatashin , Andrew Morton , Madhavan Srinivasan , Nicholas Piggin , Rohan McLure , Christophe Leroy Cc: Alexandre Ghiti , x86@kernel.org, Nicholas Miehlbradt , Sweet Tea Dorminy , Andrew Donnellan , Srish Srinivasan , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org X-Mailer: b4 0.14.2 X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjEzMDAwMSBTYWx0ZWRfX9IQIIzKXw2xl tH0+/rbto+UPHpGRxbED6SFyU3TvQhzBn5Bnm18Rs7M2aU8o3fpGJ4GlFLITKm4ocJpzIM71KI4 82JiYcC8K0cJaWhsh8Kt4lClC4WvPfTfqtudIu8x5q1we2MEDW+StLh+zTxly5M4hs9tmqSranK jbIIl4AwagE/K7yWlry8vTYFNJu5geMYYLi8J4+IpbzhrER7+79YZjCcEwfYF9kq6Exa76R9IUQ jWV+WryOEkX902WPU+YriYReNSBQT1zQqZiigNIk/AHMNFd9GV63P/iEY3A8jOFva+/ZkkwZRaF WK8kTcvio9IVcqJPQKyWw1OF0YVY55OJrhQ+2rFhtI/Lw9oniFr/In5TpNOtP5/CCYQhO5AEumr 9xeXkJ23JhORCDEgOB3C7c9DIFK82g== X-Proofpoint-GUID: I2zX4DK71CblZCa3u2dIDhZ7h8ZwJsLZ X-Proofpoint-ORIG-GUID: cZpzCHq2r53ZhDcAFYYYH7eEx1WpyjvD X-Authority-Analysis: v=2.4 cv=Kq5AGGWN c=1 sm=1 tr=0 ts=6944357f cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=VnNF1IyMAAAA:8 a=7ipKWUHlAAAA:8 a=VwQbUJbxAAAA:8 a=h0uksLzaAAAA:8 a=-IAaNFHw-wEKn7DCNmAA:9 a=QEXdDO2ut3YA:10 a=gpc5p9EgBqZVLdJeV_V1:22 a=MSi_79tMYmZZG2gvAgS0:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-18_02,2025-12-17_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 malwarescore=0 impostorscore=0 clxscore=1011 spamscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 phishscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510240000 definitions=main-2512130001 From: Rohan McLure This reverts commit a3b837130b58 ("mm/page_table_check: remove unused parameter in [__]page_table_check_pmd_set"). 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. Apply this to __page_table_check_pmds_set(), page_table_check_pmd_set(), and the page_table_check_pmd_set() wrapper macro. [ajd@linux.ibm.com: rebase on arm64 + riscv changes, update commit message] Signed-off-by: Rohan McLure Reviewed-by: Pasha Tatashin Acked-by: Ingo Molnar # x86 Acked-by: Alexandre Ghiti # riscv Signed-off-by: Andrew Donnellan --- v13: remove inaccurate comment on riscv in the commit message v14: rebase v15: rebase, amend commit message --- arch/arm64/include/asm/pgtable.h | 5 +++-- arch/riscv/include/asm/pgtable.h | 4 ++-- arch/x86/include/asm/pgtable.h | 4 ++-- include/linux/page_table_check.h | 12 ++++++------ mm/page_table_check.c | 4 ++-- 5 files changed, 15 insertions(+), 14 deletions(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgta= ble.h index 87ed9b1c011e167125a7f29a3388eca4c7bd9f29..4b580d6246f5a1c8f859bf79665= 419bbcd8c7cd3 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -684,7 +684,8 @@ static inline void __set_ptes_anysz(struct mm_struct *m= m, unsigned long addr, page_table_check_ptes_set(mm, ptep, pte, nr); break; case PMD_SIZE: - page_table_check_pmds_set(mm, (pmd_t *)ptep, pte_pmd(pte), nr); + page_table_check_pmds_set(mm, addr, (pmd_t *)ptep, + pte_pmd(pte), nr); break; #ifndef __PAGETABLE_PMD_FOLDED case PUD_SIZE: @@ -1489,7 +1490,7 @@ static inline void pmdp_set_wrprotect(struct mm_struc= t *mm, static inline pmd_t pmdp_establish(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp, pmd_t pmd) { - page_table_check_pmd_set(vma->vm_mm, pmdp, pmd); + page_table_check_pmd_set(vma->vm_mm, address, pmdp, pmd); return __pmd(xchg_relaxed(&pmd_val(*pmdp), pmd_val(pmd))); } #endif diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgta= ble.h index c4ea70903fedac7c055fb4cf530000a533c27ade..3fea1d07f7470a04fdc9a6f581d= 21667e35e0e2a 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -944,7 +944,7 @@ static inline pmd_t pmd_swp_clear_soft_dirty(pmd_t pmd) static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, pmd_t pmd) { - page_table_check_pmd_set(mm, pmdp, pmd); + page_table_check_pmd_set(mm, addr, pmdp, pmd); return __set_pte_at(mm, (pte_t *)pmdp, pmd_pte(pmd)); } =20 @@ -1015,7 +1015,7 @@ static inline void pmdp_set_wrprotect(struct mm_struc= t *mm, static inline pmd_t pmdp_establish(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp, pmd_t pmd) { - page_table_check_pmd_set(vma->vm_mm, pmdp, pmd); + page_table_check_pmd_set(vma->vm_mm, address, pmdp, pmd); return __pmd(atomic_long_xchg((atomic_long_t *)pmdp, pmd_val(pmd))); } =20 diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 2b540c563d8ddc5ed28e583de6a409c0e1bd97aa..7fd876f8d828ea70def7adc51cc= 17e70d3046e35 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -1214,7 +1214,7 @@ static inline pud_t native_local_pudp_get_and_clear(p= ud_t *pudp) static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, pmd_t pmd) { - page_table_check_pmd_set(mm, pmdp, pmd); + page_table_check_pmd_set(mm, addr, pmdp, pmd); set_pmd(pmdp, pmd); } =20 @@ -1357,7 +1357,7 @@ static inline void pmdp_set_wrprotect(struct mm_struc= t *mm, static inline pmd_t pmdp_establish(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp, pmd_t pmd) { - page_table_check_pmd_set(vma->vm_mm, pmdp, pmd); + page_table_check_pmd_set(vma->vm_mm, address, pmdp, pmd); if (IS_ENABLED(CONFIG_SMP)) { return xchg(pmdp, pmd); } else { diff --git a/include/linux/page_table_check.h b/include/linux/page_table_ch= eck.h index 0bf18b884a1265fa98eb04d2e3dbd63d02e706f3..cf7c28d8d468c026cb5278435a6= 4fbcf0fe9260e 100644 --- a/include/linux/page_table_check.h +++ b/include/linux/page_table_check.h @@ -19,8 +19,8 @@ void __page_table_check_pmd_clear(struct mm_struct *mm, p= md_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_pmds_set(struct mm_struct *mm, pmd_t *pmdp, pmd_t = pmd, - 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, pud_t *pudp, pud_t pud, unsigned int nr); void __page_table_check_pte_clear_range(struct mm_struct *mm, @@ -77,12 +77,12 @@ static inline void page_table_check_ptes_set(struct mm_= struct *mm, } =20 static inline void page_table_check_pmds_set(struct mm_struct *mm, - pmd_t *pmdp, pmd_t pmd, unsigned int nr) + unsigned long addr, pmd_t *pmdp, pmd_t pmd, unsigned int nr) { if (static_branch_likely(&page_table_check_disabled)) return; =20 - __page_table_check_pmds_set(mm, pmdp, pmd, nr); + __page_table_check_pmds_set(mm, addr, pmdp, pmd, nr); } =20 static inline void page_table_check_puds_set(struct mm_struct *mm, @@ -132,7 +132,7 @@ static inline void page_table_check_ptes_set(struct mm_= struct *mm, } =20 static inline void page_table_check_pmds_set(struct mm_struct *mm, - pmd_t *pmdp, pmd_t pmd, unsigned int nr) + unsigned long addr, pmd_t *pmdp, pmd_t pmd, unsigned int nr) { } =20 @@ -149,7 +149,7 @@ static inline void page_table_check_pte_clear_range(str= uct mm_struct *mm, =20 #endif /* CONFIG_PAGE_TABLE_CHECK */ =20 -#define page_table_check_pmd_set(mm, pmdp, pmd) page_table_check_pmds_set(= mm, pmdp, pmd, 1) +#define page_table_check_pmd_set(mm, addr, pmdp, pmd) page_table_check_pmd= s_set(mm, addr, pmdp, pmd, 1) #define page_table_check_pud_set(mm, addr, pudp, pud) page_table_check_pud= s_set(mm, addr, pudp, pud, 1) =20 #endif /* __LINUX_PAGE_TABLE_CHECK_H */ diff --git a/mm/page_table_check.c b/mm/page_table_check.c index a48f835216a1f50ffd088477ae7e80896be43bc6..86dc4e4d1dad12fe5d9d8690523= 4b009257586d5 100644 --- a/mm/page_table_check.c +++ b/mm/page_table_check.c @@ -225,8 +225,8 @@ static inline void page_table_check_pmd_flags(pmd_t pmd) } } =20 -void __page_table_check_pmds_set(struct mm_struct *mm, pmd_t *pmdp, pmd_t = pmd, - 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) { unsigned long stride =3D PMD_SIZE >> PAGE_SHIFT; unsigned int i; --=20 2.52.0