Re: [Patch v6 08/22] x86/fpu: Ensure TIF_NEED_FPU_LOAD is set after saving FPU state

[Chang S. Bae]

On 2/8/2026 11:20 PM, Dapeng Mi wrote:
> Ensure that the TIF_NEED_FPU_LOAD flag is always set after saving the
> FPU state. This guarantees that the user space FPU state has been saved
> whenever the TIF_NEED_FPU_LOAD flag is set.
>
> A subsequent patch will verify if the user space FPU state can be
> retrieved from the saved task FPU state in the NMI context by checking
> the TIF_NEED_FPU_LOAD flag.
>
> Suggested-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Suggested-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>

I could check some previous discussions there:
https://lore.kernel.org/all/20251204151735.GO2528459@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/

With that, I think I can get the context of this change -- tightening 
the flag up with the buffer against *NMIs*.

But the changelog doesn't look clear enough to explain the reason to me.

At least, I guess Links to the past discussions provides better context 
to readers.