Re: [PATCH v9 02/13] lib/group_cpus: remove dead !SMP code

Sebastian Andrzej Siewior
2026-04-01T12:46:39Z

On 2026-03-30 18:10:36 [-0400], Aaron Tomlin wrote:
> From: Daniel Wagner <wagi@kernel.org>
>
> The support for the !SMP configuration has been removed from the core by
> commit cac5cefbade9 ("sched/smp: Make SMP unconditional").

!SMP is not dead code here. You can very much compile a !SMP kernel at
which point the code below will be used. It is more that the sched
department decided that scheduler's maintenance will be easier since we
don't have to deal with !SMP case anymore.

If you wish to remove the !SMP case here you need to argue as such.

> Signed-off-by: Daniel Wagner <wagi@kernel.org>
> Reviewed-by: Hannes Reinecke <hare@suse.de>

The previous patch, this one and probably the following lack a
Signed-off-by line with your name.

Sebastian