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sched/fair: Move is_core_idle() out of CONFIG_NUMA

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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
This commit is contained in:
Ricardo Neri
2023-04-06 13:31:37 -07:00
committed by Peter Zijlstra
parent ac9a78681b
commit 8b36d07f1d
1 changed files with 17 additions and 17 deletions
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34
kernel/sched/fair.c
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@@ -1064,6 +1064,23 @@ update_stats_curr_start(struct cfs_rq *cfs_rq, struct sched_entity *se)
* Scheduling class queueing methods: * 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 #ifdef CONFIG_NUMA
#define NUMA_IMBALANCE_MIN 2 #define NUMA_IMBALANCE_MIN 2
@@ -1700,23 +1717,6 @@ struct numa_stats {
int idle_cpu; 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_numa_env {
struct task_struct *p; struct task_struct *p;