Messages in this thread Patch in this message | | | From | Ricardo Neri <> | Subject | [PATCH v3 02/10] sched/fair: Move is_core_idle() out of CONFIG_NUMA | Date | Mon, 6 Feb 2023 20:58:30 -0800 |
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asym_packing needs this function to determine whether an SMT core is a suitable destination for load balancing.
Cc: Ben Segall <bsegall@google.com> Cc: Daniel Bristot de Oliveira <bristot@redhat.com> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Len Brown <len.brown@intel.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tim C. Chen <tim.c.chen@intel.com> Cc: Valentin Schneider <vschneid@redhat.com> Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> --- Changes since v2: * Introduced this patch.
Changes since v1: * N/A --- 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 df46e06c9a3e..767bec7789ac 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; -- 2.25.1
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