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kthread: use kthread_create_on_node()

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ksoftirqd, kworker, migration, and pktgend kthreads can be created with
kthread_create_on_node(), to get proper NUMA affinities for their stack and
task_struct.

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: David S. Miller <[email protected]>
Reviewed-by: Andi Kleen <[email protected]>
Acked-by: Rusty Russell <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Fenghua Yu <[email protected]>
Cc: David Howells <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Eric Dumazet 2011-03-22 16:30:45 -07:00 • committed by Linus Torvalds
commit 94dcf29a11
4 changed files with 16 additions and 6 deletions
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5
kernel/softirq.c
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@ -845,7 +845,10 @@ static int __cpuinit cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_UP_PREPARE:
case CPU_UP_PREPARE_FROZEN:
p = kthread_create(run_ksoftirqd, hcpu, "ksoftirqd/%d", hotcpu);
p = kthread_create_on_node(run_ksoftirqd,
hcpu,
cpu_to_node(hotcpu),
"ksoftirqd/%d", hotcpu);
if (IS_ERR(p)) {
printk("ksoftirqd for %i failed\n", hotcpu);
return notifier_from_errno(PTR_ERR(p));