# \[PATCH\] sched: provide scheduler\_ipi() callback in response to smp\_send\_reschedule()

- From: Peter Zijlstra \<peterz@infradead.org\>
- Date: 2011-02-07 13:54:19 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2011/02/8568155
- Thread: https://ratatoskr.run/linux-arm-kernel/2011/01/8566729/t.md

```text
On Mon, 2011-02-07 at 10:26 +1100, Benjamin Herrenschmidt wrote:
> You missed:
> 
> diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> index 9813605..467d122 100644
> --- a/arch/powerpc/kernel/smp.c
> +++ b/arch/powerpc/kernel/smp.c
> @@ -98,6 +98,7 @@ void smp_message_recv(int msg)
>                 break;
>         case PPC_MSG_RESCHEDULE:
>                 /* we notice need_resched on exit */
> +               scheduler_ipi();
>                 break;
>         case PPC_MSG_CALL_FUNC_SINGLE:
>                 generic_smp_call_function_single_interrupt();
> 
> Fold that in and add:
> 
> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Thanks Ben!
```