Re: [PATCH 6.6 046/152] x86/mm/tlb: Only trim the mm_cpumask once a second

On Thu, Apr 10, 2025 at 09:13:29AM +0800, Jinjiang Tu wrote:

Hi,

I noticed commit 6db2526c1d69 ("x86/mm/tlb: Only trim the mm_cpumask once a second") is aimed to fix performance regression introduced by commit 209954cbc7d0 ("x86/mm/tlb: Update mm_cpumask lazily")

But commit 209954cbc7d0 isn't merged into stable 6.6, it seems merely merging commit 6db2526c1d69 into stable 6.6 is meaningless.

If you revert it, does everything still work properly? If so, can you submit a patch to revert it if you think it should be removed, from all affected branches?

thanks,

greg k-h