Re: [PATCH v5 1/5] sched/topology: Remove duplicate descriptions from TOPOLOGY_SD_FLAGS

From: Vincent Guittot
Date: Tue Feb 13 2024 - 11:46:01 EST


On Sat, 10 Feb 2024 at 12:36, <alexs@xxxxxxxxxx> wrote:
>
> From: Alex Shi <alexs@xxxxxxxxxx>
>
> These flags are already documented in include/linux/sched/sd_flags.h.
> Also, add missing SD_CLUSTER and keep the comment on SD_ASYM_PACKING
> as it is a special case.
>
> Suggested-by: Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx>
> Signed-off-by: Alex Shi <alexs@xxxxxxxxxx>
> Cc: Valentin Schneider <vschneid@xxxxxxxxxx>
> Cc: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
> Cc: Juri Lelli <juri.lelli@xxxxxxxxxx>
> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Reviewed-by: Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx>
> Reviewed-by: Valentin Schneider <vschneid@xxxxxxxxxx>

Reviewed-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>

> ---
> kernel/sched/topology.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
> index 10d1391e7416..0b33f7b05d21 100644
> --- a/kernel/sched/topology.c
> +++ b/kernel/sched/topology.c
> @@ -1551,11 +1551,12 @@ static struct cpumask ***sched_domains_numa_masks;
> *
> * These flags are purely descriptive of the topology and do not prescribe
> * behaviour. Behaviour is artificial and mapped in the below sd_init()
> - * function:
> + * function. For details, see include/linux/sched/sd_flags.h.
> *
> - * SD_SHARE_CPUCAPACITY - describes SMT topologies
> - * SD_SHARE_PKG_RESOURCES - describes shared caches
> - * SD_NUMA - describes NUMA topologies
> + * SD_SHARE_CPUCAPACITY
> + * SD_SHARE_PKG_RESOURCES
> + * SD_CLUSTER
> + * SD_NUMA
> *
> * Odd one out, which beside describing the topology has a quirk also
> * prescribes the desired behaviour that goes along with it:
> --
> 2.43.0
>