From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C5CFFC4451C for ; Fri, 17 Jul 2026 17:01:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=PpNZRbQ47/WqGdrrUHhpvYqGIuM8bItP00+DgG6LDXo=; b=GBq2T/Lx2CcFLaDe3a1W5oZFyL uhG+zikyYGd+zrD/SuXjXhaORova4zDfobLRGsWjIC888beRHw/7KuulRS7rdu0roHVAbh/ZHiWIq cUYsCTR7R9iZ+5GeEe9I04sJEuVxm0Yj+b0KJ9vvVAGMHn+xmbMwc3ISy81KgIqlSrsHOaI/E7Hh2 xxoznJ3Wa4gpQdZImVe2FmQpNvINOd4PvdN+gNF3/4PusnSZDmMTb70p+c4TR7Wu5lrNC19HGDoR4 Kdb9tpoGT8jOVjIkyyBPodTSM81vBjjn7459KBUYLnLRKx7M8UhUIJZtHcafMOSZu4qgQGZEtdriE AQMpqy+w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wklwR-00000002niy-0Xtb; Fri, 17 Jul 2026 17:01:39 +0000 Received: from shelob.surriel.com ([96.67.55.147]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wklwN-00000002nhz-2xvm for linux-arm-kernel@lists.infradead.org; Fri, 17 Jul 2026 17:01:37 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=surriel.com ; s=mail; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=PpNZRbQ47/WqGdrrUHhpvYqGIuM8bItP00+DgG6LDXo=; b=eg8ad3RiFa8lAL5pChcMMgF1Si LEbP5CZ1dBogtdyeKd+q0TUhTbit02LiVOpp6m6hBnGvr3J9MKzB6Gabf/w1RkeB/xjPyNSXCmw5n 9x33pv/WFy+Cz5on5MbJSN3T/Z45sBaO10W/t8w9GivVYQG03zc6Xa/DNv1fDl/uDl2quDe+ASJIr 08PV+2sy2+JnkIATDRgGx/E0LfZjXBGhUyOBCM4nxowH0d9AumHwwizfilLbnOyXaZdXf/Rwm9Mkf puhrOFc1ywQuSWaJpvYYHdbml9Y+yFXm6E4fQBHczEfQ91zkLtR2xjQlUqzJwkLH0P84hz83lyxP/ etyWm5xg==; Received: from fangorn.home.surriel.com ([10.0.13.7]) by shelob.surriel.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.97.1) (envelope-from ) id 1wklvS-000000001w4-0RAd; Fri, 17 Jul 2026 13:00:38 -0400 From: Rik van Riel To: linux-kernel@vger.kernel.org, Andrew Morton Cc: kernel-team@meta.com, Rik van Riel , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , linux-mm@kvack.org, Catalin Marinas , Will Deacon , Masami Hiramatsu , Oleg Nesterov , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Harry Yoo , Jann Horn , Lance Yang , linux-arm-kernel@lists.infradead.org, linux-trace-kernel@vger.kernel.org Subject: [PATCH RFC v3 3/6] mm: rename get_user_page_vma_remote() to get_user_page_lookup_vma() Date: Fri, 17 Jul 2026 13:00:33 -0400 Message-ID: <20260717170036.743149-4-riel@surriel.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260717170036.743149-1-riel@surriel.com> References: <20260717170036.743149-1-riel@surriel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260717_100135_750322_604C9E56 X-CRM114-Status: GOOD ( 14.83 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org get_user_page_vma_remote() faults in the page at @addr in a remote mm and also looks up the VMA that covers it, handing both back to the caller. This cleans up the name space for adding a get_user_page_vma() variant where the caller already has the vma. Assisted-by: Claude:claude-opus-4.8 Signed-off-by: Rik van Riel --- arch/arm64/kernel/mte.c | 2 +- arch/x86/kernel/uprobes.c | 2 +- include/linux/mm.h | 2 +- mm/memory.c | 4 ++-- mm/rmap.c | 2 +- 5 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c index 1a9aad6ef22a..7a6ecc3d9294 100644 --- a/arch/arm64/kernel/mte.c +++ b/arch/arm64/kernel/mte.c @@ -459,7 +459,7 @@ static int __access_remote_tags(struct mm_struct *mm, unsigned long addr, struct vm_area_struct *vma; unsigned long tags, offset; void *maddr; - struct page *page = get_user_page_vma_remote(mm, addr, + struct page *page = get_user_page_lookup_vma(mm, addr, gup_flags, &vma); struct folio *folio; diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c index 3af979fb41d3..329efac0cfb3 100644 --- a/arch/x86/kernel/uprobes.c +++ b/arch/x86/kernel/uprobes.c @@ -1036,7 +1036,7 @@ static int copy_from_vaddr(struct mm_struct *mm, unsigned long vaddr, void *dst, struct vm_area_struct *vma; struct page *page; - page = get_user_page_vma_remote(mm, vaddr, gup_flags, &vma); + page = get_user_page_lookup_vma(mm, vaddr, gup_flags, &vma); if (IS_ERR(page)) return PTR_ERR(page); uprobe_copy_from_page(page, vaddr, dst, len); diff --git a/include/linux/mm.h b/include/linux/mm.h index 485df9c2dbdd..24ead14b4790 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -3238,7 +3238,7 @@ long pin_user_pages_remote(struct mm_struct *mm, /* * Retrieves a single page alongside its VMA. Does not support FOLL_NOWAIT. */ -static inline struct page *get_user_page_vma_remote(struct mm_struct *mm, +static inline struct page *get_user_page_lookup_vma(struct mm_struct *mm, unsigned long addr, int gup_flags, struct vm_area_struct **vmap) diff --git a/mm/memory.c b/mm/memory.c index ff338c2abe92..3b86eeaf084f 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -7039,7 +7039,7 @@ static int __access_remote_vm(struct mm_struct *mm, unsigned long addr, void *maddr; struct folio *folio; struct vm_area_struct *vma = NULL; - struct page *page = get_user_page_vma_remote(mm, addr, + struct page *page = get_user_page_lookup_vma(mm, addr, gup_flags, &vma); if (IS_ERR(page)) { @@ -7167,7 +7167,7 @@ static int __copy_remote_vm_str(struct mm_struct *mm, unsigned long addr, struct page *page; struct vm_area_struct *vma = NULL; - page = get_user_page_vma_remote(mm, addr, gup_flags, &vma); + page = get_user_page_lookup_vma(mm, addr, gup_flags, &vma); if (IS_ERR(page)) { /* * Treat as a total failure for now until we decide how diff --git a/mm/rmap.c b/mm/rmap.c index 1c77d5dc06e9..b36f2e219b8f 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -2838,7 +2838,7 @@ struct page *make_device_exclusive(struct mm_struct *mm, unsigned long addr, * (non-device-exclusive) PTE and issue a MMU_NOTIFY_EXCLUSIVE. */ retry: - page = get_user_page_vma_remote(mm, addr, + page = get_user_page_lookup_vma(mm, addr, FOLL_GET | FOLL_WRITE | FOLL_SPLIT_PMD, &vma); if (IS_ERR(page)) -- 2.53.0-Meta