[PATCH] watchdog: NUMA affine kthreads

From: Don Zickus
Date: Wed Aug 03 2011 - 14:00:17 EST


From: Eric Dumazet <eric.dumazet@xxxxxxxxx>

watchdog kthreads can use kthread_create_on_node() to NUMA affine their
stack and task_struct.

Signed-off-by: Eric Dumazet <eric.dumazet@xxxxxxxxx>
CC: Don Zickus <dzickus@xxxxxxxxxx>
CC: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Signed-off-by: Don Zickus <dzickus@xxxxxxxxxx>
---
kernel/watchdog.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 36491cd..14cabcd 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -438,7 +438,8 @@ static int watchdog_enable(int cpu)

/* create the watchdog thread */
if (!p) {
- p = kthread_create(watchdog, (void *)(unsigned long)cpu, "watchdog/%d", cpu);
+ p = kthread_create_on_node(watchdog, NULL, cpu_to_node(cpu),
+ "watchdog/%d", cpu);
if (IS_ERR(p)) {
printk(KERN_ERR "softlockup watchdog for %i failed\n", cpu);
if (!err) {
--
1.7.6

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