Commit 2634fc58 authored Feb 28, 2021 by Jerome Kim Committed by wenju.xu Feb 28, 2021

[ALPS05471223] RT: fix racing under CONFIG_MTK_SCHED_INTEROP



fix racing between init_perf_order_domains() & find_lowest_rq()
it made invalid load during list manipulating.

MTK-Commit-Id: 79198bf0c16133491d19bbf6f0910f1712037d30

Change-Id: I183f8f074766cf2bd1f6a89d5ee80bef2d699c44
Signed-off-by: Jerome Kim <Jerome.Kim@mediatek.com>
CR-Id: ALPS05471223
Feature: Energy Aware Scheduling Plus (EAS+)

parent 70ea28cf

kernel/sched/rt.c

+11 −9

Original line number	Diff line number	Diff line
		@@ -1770,6 +1770,7 @@ static int find_lowest_rq(struct task_struct *task)
		!cpu_isolated(cpu))
		return cpu;

		if (pod_is_ready()) {
		for_each_perf_domain_ascending(domain) {
		tmp_domain[domain_cnt] = domain;
		domain_cnt++;
		@@ -1781,6 +1782,7 @@ static int find_lowest_rq(struct task_struct *task)
		return iter_cpu;
		}
		}
		}
		#endif

		/*