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    Subject[tip: sched/core] sched/fair: Move is_core_idle() out of CONFIG_NUMA
    The following commit has been merged into the sched/core branch of tip:

    Commit-ID: 8b36d07f1d63de102d464f44a89704bc62d00811
    Gitweb: https://git.kernel.org/tip/8b36d07f1d63de102d464f44a89704bc62d00811
    Author: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
    AuthorDate: Thu, 06 Apr 2023 13:31:37 -07:00
    Committer: Peter Zijlstra <peterz@infradead.org>
    CommitterDate: Mon, 08 May 2023 10:58:33 +02:00

    sched/fair: Move is_core_idle() out of CONFIG_NUMA

    asym_packing needs this function to determine whether an SMT core is a
    suitable destination for load balancing.

    Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
    Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
    Tested-by: Zhang Rui <rui.zhang@intel.com>
    Link: https://lore.kernel.org/r/20230406203148.19182-2-ricardo.neri-calderon@linux.intel.com
    ---
    kernel/sched/fair.c | 34 +++++++++++++++++-----------------
    1 file changed, 17 insertions(+), 17 deletions(-)

    diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
    index 373ff5f..a47208d 100644
    --- a/kernel/sched/fair.c
    +++ b/kernel/sched/fair.c
    @@ -1064,6 +1064,23 @@ update_stats_curr_start(struct cfs_rq *cfs_rq, struct sched_entity *se)
    * Scheduling class queueing methods:
    */

    +static inline bool is_core_idle(int cpu)
    +{
    +#ifdef CONFIG_SCHED_SMT
    + int sibling;
    +
    + for_each_cpu(sibling, cpu_smt_mask(cpu)) {
    + if (cpu == sibling)
    + continue;
    +
    + if (!idle_cpu(sibling))
    + return false;
    + }
    +#endif
    +
    + return true;
    +}
    +
    #ifdef CONFIG_NUMA
    #define NUMA_IMBALANCE_MIN 2

    @@ -1700,23 +1717,6 @@ struct numa_stats {
    int idle_cpu;
    };

    -static inline bool is_core_idle(int cpu)
    -{
    -#ifdef CONFIG_SCHED_SMT
    - int sibling;
    -
    - for_each_cpu(sibling, cpu_smt_mask(cpu)) {
    - if (cpu == sibling)
    - continue;
    -
    - if (!idle_cpu(sibling))
    - return false;
    - }
    -#endif
    -
    - return true;
    -}
    -
    struct task_numa_env {
    struct task_struct *p;

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