lkml.org 
[lkml]   [2022]   [Jul]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH net-next 1/2] sched/topology: Expose sched_numa_find_closest
    Date
    This logic can help device drivers prefer some remote cpus
    over others, according to the NUMA distance metrics.

    Reviewed-by: Gal Pressman <gal@nvidia.com>
    Signed-off-by: Tariq Toukan <tariqt@nvidia.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
    \
     
     \ /
      Last update: 2022-07-17 07:24    [W:2.433 / U:0.012 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site