Re: [PATCH] kthread: NUMA aware kthread_create_on_cpu()

[Andi Kleen]

On Sun, Nov 28, 2010 at 11:51:51PM +0100, Eric Dumazet wrote:
> > Also this messes up the policy of the caller process. You really
> > need to save/restore it.
> 
> Well, caller process duty is to create kthreads in a loop.

In this case any other allocations it may do are still on those
nodes.

> > Problem is that this ends up in architecture specific code
> > for the stack, so may be a larger patch.
> 
> I suggest arches that need slab to allocate kthread stacks do the
> appropriate changes, because I am not able to make them myself.
> 
> On x86, we use page allocator only, so NUMA mempolicy is used.

task_struct is always allocated from slab.

-Andi

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/