Re: [BUG] x86/mm: regression after 4a02ed8e1cc3

[Dave Hansen]

On 9/2/25 08:44, Giovanni Cabiddu wrote:
> diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
> index 39f80111e6f1..e66c7662c254 100644
> --- a/arch/x86/mm/tlb.c
> +++ b/arch/x86/mm/tlb.c
> @@ -1459,7 +1459,7 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
>  
>  	put_flush_tlb_info();
>  	put_cpu();
> -	mmu_notifier_arch_invalidate_secondary_tlbs(mm, start, end);
> +	mmu_notifier_arch_invalidate_secondary_tlbs(mm, info->start, info->end);
>  }

That does look like the right solution.

This is the downside of wrapping everything up in that 'info' struct;
it's not obvious that the canonical source of the start/end information
moved from those variables into the structure.

Rik, is that your read on it too?

In any case, Giovanni, do you want to send that as a "real" patch that
we can apply (changelog, SoB, Fixes, Cc:stable@, etc...)?