Merge "sched: Avoid pulling all tasks from a CPU during load balance" (76736228) · Commits · e / devices / android_kernel_sony_msm8994

kernel/sched/fair.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -7218,6 +7218,14 @@ more_balance:
		local_irq_save(flags);
		double_rq_lock(env.dst_rq, busiest);

		/* The world might have changed. Validate assumptions */
		if (busiest->nr_running <= 1) {
		double_rq_unlock(env.dst_rq, busiest);
		local_irq_restore(flags);
		env.flags &= ~LBF_ALL_PINNED;
		goto no_move;
		}

		/*
		* cur_ld_moved - load moved in current iteration
		* ld_moved - cumulative load moved across iterations
		@@ -7287,6 +7295,7 @@ more_balance:
		}
		}

		no_move:
		if (!ld_moved) {
		if (!(env.flags & (LBF_PWR_ACTIVE_BALANCE \| LBF_SCHED_BOOST)))
		schedstat_inc(sd, lb_failed[idle]);