Re: [PATCH RFC v3 3/6] mm: rename get_user_page_vma_remote() to get_user_page_lookup_vma()

[Usama Arif <usama.arif@linux.dev>]

On Fri, 17 Jul 2026 13:00:33 -0400 Rik van Riel <riel@surriel.com> wrote:

> 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

nit: s/name space/namespace/

> where the caller already has the vma.
> 
> Assisted-by: Claude:claude-opus-4.8
> Signed-off-by: Rik van Riel <riel@surriel.com>
> ---
>  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(-)
> 


I think good to add no functional change intended in the patch.

Acked-by: Usama Arif <usama.arif@linux.dev>


> 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
> 
>