[RFC] NUMA aware kthread_create() ?

[Eric Dumazet <dada1@cosmosbay.com>]

Hi

Is there any plans about making a kthread_create_on_cpu() version of 
kthread_create(), so that memory allocated for thread stack/info is allocated 
on the node of the target CPU ?

There is a mention about kthread_create_on_cpu() in a comment in 
include/linux/kthread.h, but no implementation.

The current use pattern is

p = kthread_create(ksoftirqd, hcpu, "ksoftirqd/%d", hotcpu);
if (IS_ERR(p)) { error ... }
kthread_bind(p, hotcpu);

So the thread memory is currently allocated on the node of the current cpu, ie 
not the target cpu (hotcpu in this example)

Thank you
Eric Dumazet
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