[PATCH 3/6] mm/vmalloc: constify vm parameter of get_vm_area_page_order()

[Uladzislau Rezki]

On Sun, Aug 16, 2026 at 01:59:26PM +0300, Mike Rapoport (Microsoft) wrote:
> get_vm_area_page_order() and vm_area_page_order() do not need to modify
> struct vm_struct passed to them.
> 
> Constify the parameter.
> 
> Signed-off-by: Mike Rapoport (Microsoft) <rppt at kernel.org>
> ---
>  mm/vmalloc.c | 4 ++--
>  mm/vmalloc.h | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/mm/vmalloc.c b/mm/vmalloc.c
> index 6822f0fe9583..fc7993db4152 100644
> --- a/mm/vmalloc.c
> +++ b/mm/vmalloc.c
> @@ -3124,7 +3124,7 @@ EXPORT_SYMBOL(vm_map_ram);
>  
>  static struct vm_struct *vmlist __initdata;
>  
> -static inline unsigned int vm_area_page_order(struct vm_struct *vm)
> +static inline unsigned int vm_area_page_order(const struct vm_struct *vm)
>  {
>  #ifdef CONFIG_HAVE_ARCH_HUGE_VMALLOC
>  	return vm->page_order;
> @@ -3133,7 +3133,7 @@ static inline unsigned int vm_area_page_order(struct vm_struct *vm)
>  #endif
>  }
>  
> -unsigned int get_vm_area_page_order(struct vm_struct *vm)
> +unsigned int get_vm_area_page_order(const struct vm_struct *vm)
>  {
>  	return vm_area_page_order(vm);
>  }
> diff --git a/mm/vmalloc.h b/mm/vmalloc.h
> index 8866ddcff668..211869f36509 100644
> --- a/mm/vmalloc.h
> +++ b/mm/vmalloc.h
> @@ -12,7 +12,7 @@ void __init vmalloc_init(void);
>  int __must_check vmap_pages_range_noflush(unsigned long addr, unsigned long end,
>  		pgprot_t prot, struct page **pages,
>  		unsigned int page_shift, gfp_t gfp_mask);
> -unsigned int get_vm_area_page_order(struct vm_struct *vm);
> +unsigned int get_vm_area_page_order(const struct vm_struct *vm);
>  #else
>  static inline void vmalloc_init(void) {}
>  
> 
> -- 
> 2.53.0
> 
LGTM:

Reviewed-by: Uladzislau Rezki (Sony) <urezki at gmail.com>

--
Uladzislau Rezki