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Commit b81ca55e authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "sched/fair: Check env src_grp_nr_running for active load balance"

parents 43f43ab6 c1658e57

kernel/sched/fair.c

+2 −0
Original line number Diff line number Diff line
@@ -10846,6 +10846,7 @@ static int need_active_balance(struct lb_env *env) 
	 * available on dst_cpu.

	 */

	if ((env->idle != CPU_NOT_IDLE) &&

	    (env->src_grp_nr_running == 1) &&

	    (env->src_rq->cfs.h_nr_running == 1)) {

		if ((check_cpu_capacity(env->src_rq, sd)) &&

		    (capacity_of(env->src_cpu)*sd->imbalance_pct < capacity_of(env->dst_cpu)*100))
@@ -10855,6 +10856,7 @@ static int need_active_balance(struct lb_env *env) 
	if ((env->idle != CPU_NOT_IDLE) &&

		(capacity_of(env->src_cpu) < capacity_of(env->dst_cpu)) &&

	    ((capacity_orig_of(env->src_cpu) < capacity_orig_of(env->dst_cpu))) &&

				(env->src_grp_nr_running == 1) &&

				env->src_rq->cfs.h_nr_running == 1 &&

				cpu_overutilized(env->src_cpu) &&

				!cpu_overutilized(env->dst_cpu)) {