a fixing patch for 4.15 sched change of cpu_ptr

Message ID 17bc8f42-3047-52eb-a38c-815fefc733ac@linaro.org
State New
Headers show
Series
  • a fixing patch for 4.15 sched change of cpu_ptr
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Commit Message

Alex Shi Dec. 15, 2017, 1:42 a.m.
Hi Sebastain,

After rebase rt to 4.15, The following patch still need be fold into:
kernel: sched: Provide a pointer to the valid CPU mask

Regards
Alex

From b61af268d8b731b7ffeffd2d588c4e8dcae18d44 Mon Sep 17 00:00:00 2001
From: Alex Shi <alex.shi@linaro.org>

Date: Tue, 12 Dec 2017 17:59:11 +0800
Subject: [PATCH] sched: replace new cpus_allowed member usage with cpus_ptr

4.15 commit 6fee85c
sched/fair: Fix usage of find_idlest_group() when no groups are allowed
reused cpus_allowed again. need to fix this to follow cpu_allowed to cpu_ptr
change on rt.


Signed-off-by: Alex Shi <alex.shi@linaro.org>

---
 kernel/sched/fair.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.7.4

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Patch

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 3136c11..2c5ab64 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5965,7 +5965,7 @@  static inline int find_idlest_cpu(struct sched_domain *sd, struct task_struct *p
 {
 	int new_cpu = cpu;
 
-	if (!cpumask_intersects(sched_domain_span(sd), &p->cpus_allowed))
+	if (!cpumask_intersects(sched_domain_span(sd), p->cpus_ptr))
 		return prev_cpu;
 
 	while (sd) {