# Re: \[PATCH v2 2/2\] mm: Remove tlb\_flush\_reason::NR\_TLB\_FLUSH\_REASONS

- From: Lorenzo Stoakes \<hidden\>
- Date: 2025-12-15 12:41:02 
- List: linux-trace-kernel
- Page: https://ratatoskr.run/linux-trace-kernel/2025/12/3333613
- Thread: https://ratatoskr.run/linux-trace-kernel/2025/12/3331665/t.md

```text
On Fri, Dec 12, 2025 at 04:08:08AM -0500, Tal Zussman wrote:
> This has been unused since it was added 11 years ago in commit
> d17d8f9dedb9 ("x86/mm: Add tracepoints for TLB flushes").
>
> Acked-by: David Hildenbrand <redacted>
> Reviewed-by: Rik van Riel <riel@surriel.com>
> Signed-off-by: Tal Zussman <redacted>

Hmm, guess just a way of counting the number of reasons, but if nobody's using
it that's silly. So:

Reviewed-by: Lorenzo Stoakes <redacted>

> ---
>  include/linux/mm_types.h | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
> index 9f6de068295d..42af2292951d 100644
> --- a/include/linux/mm_types.h
> +++ b/include/linux/mm_types.h
> @@ -1631,7 +1631,6 @@ enum tlb_flush_reason {
>  	TLB_LOCAL_MM_SHOOTDOWN,
>  	TLB_REMOTE_SEND_IPI,
>  	TLB_REMOTE_WRONG_CPU,
> -	NR_TLB_FLUSH_REASONS,
>  };
>
>  /**
>
> --
> 2.39.5
>
```