Re: [2.6.20][PATCH] fix mempolicy error check on a system with memory-less-node

KAMEZAWA Hiroyuki
2007-02-07T12:27:59Z

On Wed, 7 Feb 2007 12:32:36 +0100
Andi Kleen <ak@suse.de> wrote:

>
> > How for_each_online_node(nid) works ? it can handle alias-nid ?
> >
> > ==
> > for_each_online_node(nid) {
> > pgdat = NODE_DATA(nid);
> > ==
> > This code never accesses pgdat_for_A twice ?
>
> It would. If there's a problem it could be changed to walk the pgdat lists instead,
> but at least when x86-64 still did it there wasn't.
>

Thank you for discussion.

I'll try another hot-fix just for this NULL pointer access problem,
which is not invasive and not costly.

Thanks,
-Kame