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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-Stat-Signature: ds1zus1rtxts5zyss3b1cdtxpb6bnixa X-Rspamd-Queue-Id: 5A01420007 X-Rspamd-Server: rspam01 X-Rspam-User: X-HE-Tag: 1784307670-919902 X-HE-Meta: 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 OoadT0eD mgf5zEarFuG00tt9YZkpe4JQJHT+CDOv1+EFkKqG4HsM1ut+qRGFo7DvuKPODm38phmymLQ2VveccFSUzTabDab6TUaQIx6mRHV5MReEfBVqwbDljdxGlFWs8FDjkQrA9AjlOp6lr/+s9vVE1BD1+8zh9CV52NiBdyUimhH7MeZhwTEzwiLLI0U08RbLURbLwxLH0ZJx3+4oXM6OKkaAqQIXNqAskYqJ2ftDECmKvvFZoebS8Mi9wcfv8nE6Fc+13PYxxEgHqJzCuTtkhgXrWgXSsx0NDOR/7fJzRMZWGouYg8BbEn2jE5P0pjT33Y8rtm3zL Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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