Re: [RFC PATCH 1/2] smp: Implement serialized smp_call_function APIs

[Linus Torvalds]

On Wed, 13 Mar 2024 at 13:56, Mathieu Desnoyers
<mathieu.desnoyers@xxxxxxxxxxxx> wrote:
>
> Introduce serialized smp_call_function APIs to limit the number of
> concurrent smp_call_function IPIs which can be sent to a given CPU to a
> maximum of two: one broadcast and one specifically targeting the CPU.

So  honestly, with only one user, I think the serialization code
should be solidly in that one user, not in kernel/smp.c.

Also, this kind of extra complexity does require numbers to argue for it.

             Linus