linux-kernel - [PATCH] fcoe: use kthread_create_on

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Date:	Fri, 29 Jul 2011 09:00:25 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Robert Love <robert.w.love@...el.com>
Cc:	devel@...n-fcoe.org, linux-kernel <linux-kernel@...r.kernel.org>,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	linux-scsi@...r.kernel.org,
	Neerav Parikh <Neerav.Parikh@...el.com>,
	Kiran Patil <kiran.patil@...el.com>
Subject: [PATCH] fcoe: use kthread_create_on_node

Since fcoe_percpu_thread_create() creates percpu kthread, it makes sense
to use kthread_create_on_node() to get proper NUMA affinity for kthread
stack.

Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
CC: Neerav Parikh <Neerav.Parikh@...el.com>
CC: Kiran Patil <kiran.patil@...el.com>
CC: "James E.J. Bottomley" <JBottomley@...allels.com>
---
 drivers/scsi/fcoe/fcoe.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 204fa8d..a9dab1f 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -1118,8 +1118,9 @@ static void fcoe_percpu_thread_create(unsigned int cpu)
 
 	p = &per_cpu(fcoe_percpu, cpu);
 
-	thread = kthread_create(fcoe_percpu_receive_thread,
-				(void *)p, "fcoethread/%d", cpu);
+	thread = kthread_create_on_node(fcoe_percpu_receive_thread,
+					(void *)p, cpu_to_node(cpu),
+					"fcoethread/%d", cpu);
 
 	if (likely(!IS_ERR(thread))) {
 		kthread_bind(thread, cpu);


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