Re: [PATCH 3/3] mm/vmalloc: extract show_busy_info from vmalloc_info_show

[Uladzislau Rezki]

On Mon, Sep 14, 2026 at 11:34:02AM +0800, Ye Liu wrote:
> From: Ye Liu <liuye@xxxxxxxxxx>
> 
> Extract the busy vmap area iteration into show_busy_info, mirroring
> the existing show_purge_info pattern.
> 
> Signed-off-by: Ye Liu <liuye@xxxxxxxxxx>
> ---
>  mm/vmalloc.c | 14 ++++++++++----
>  1 file changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/mm/vmalloc.c b/mm/vmalloc.c
> index 797933ba9451..7638845377f5 100644
> --- a/mm/vmalloc.c
> +++ b/mm/vmalloc.c
> @@ -5345,12 +5345,12 @@ static void show_purge_info(struct seq_file *m)
>  	}
>  }
>  
> -static int vmalloc_info_show(struct seq_file *m, void *p)
> +static void show_busy_info(struct seq_file *m)
>  {
>  	struct vmap_node *vn;
>  	struct vmap_area *va;
>  	struct vm_struct *v;
> -	unsigned int *counters;
> +	unsigned int *counters = NULL;
>
Is setting counters setting to NULL odd here?

Other than that, LGTM:

Reviewed-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>

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Uladzislau Rezki