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Message-ID: <20220717052301.19067-2-tariqt@nvidia.com> Date: Sun, 17 Jul 2022 08:23:00 +0300 From: Tariq Toukan <tariqt@...dia.com> To: "David S. Miller" <davem@...emloft.net>, Saeed Mahameed <saeedm@...dia.com>, Jakub Kicinski <kuba@...nel.org>, Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>, Juri Lelli <juri.lelli@...hat.com> CC: Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, <netdev@...r.kernel.org>, Gal Pressman <gal@...dia.com>, Vincent Guittot <vincent.guittot@...aro.org>, <linux-kernel@...r.kernel.org>, Tariq Toukan <tariqt@...dia.com> Subject: [PATCH net-next 1/2] sched/topology: Expose sched_numa_find_closest This logic can help device drivers prefer some remote cpus over others, according to the NUMA distance metrics. Reviewed-by: Gal Pressman <gal@...dia.com> Signed-off-by: Tariq Toukan <tariqt@...dia.com> --- include/linux/sched/topology.h | 2 ++ kernel/sched/topology.c | 1 + 2 files changed, 3 insertions(+) diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h index 56cffe42abbc..d467c30bdbb9 100644 --- a/include/linux/sched/topology.h +++ b/include/linux/sched/topology.h @@ -61,6 +61,8 @@ static inline int cpu_numa_flags(void) { return SD_NUMA; } + +int sched_numa_find_closest(const struct cpumask *cpus, int cpu); #endif extern int arch_asym_cpu_priority(int cpu); diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 05b6c2ad90b9..688334ac4980 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -2066,6 +2066,7 @@ int sched_numa_find_closest(const struct cpumask *cpus, int cpu) return found; } +EXPORT_SYMBOL(sched_numa_find_closest); #endif /* CONFIG_NUMA */ -- 2.21.0
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