linux-kernel - [PATCH 2/2] workqueue: update per cpu workqueue's numa affinity when cpu preparing online

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Message-ID: <1427336275-32066-3-git-send-email-guz.fnst@cn.fujitsu.com>
Date:	Thu, 26 Mar 2015 10:17:55 +0800
From:	Gu Zheng <guz.fnst@...fujitsu.com>
To:	<linux-kernel@...r.kernel.org>
CC:	<tj@...nel.org>, <laijs@...fujitsu.com>,
	<isimatu.yasuaki@...fujitsu.com>, <kamezawa.hiroyu@...fujitsu.com>,
	<tangchen@...fujitsu.com>, <guz.fnst@...fujitsu.com>,
	<izumi.taku@...fujitsu.com>
Subject: [PATCH 2/2] workqueue: update per cpu workqueue's numa affinity when cpu preparing online

Update the per cpu workqueue's numa affinity when cpu preparing online to
create the worker on the correct node.

Signed-off-by: Gu Zheng <guz.fnst@...fujitsu.com>
---
 kernel/workqueue.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 41ff75b..4c65953 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4618,6 +4618,7 @@ static int workqueue_cpu_up_callback(struct notifier_block *nfb,
 	switch (action & ~CPU_TASKS_FROZEN) {
 	case CPU_UP_PREPARE:
 		for_each_cpu_worker_pool(pool, cpu) {
+			pool->node = cpu_to_node(cpu);
 			if (pool->nr_workers)
 				continue;
 			if (!create_worker(pool))
-- 
1.7.7

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