Re: [Patch] numa: introduce CONFIG_NUMA_SYSFS for drivers/base/node.c

[Cong Wang]

ä 2011å08æ26æ 04:57, David Rientjes åé:
> On Thu, 25 Aug 2011, Cong Wang wrote:
>
> > > No, it doesn't work, CONFIG_HUGETLBFS can be enabled with CONFIG_NUMA=y
> > > and CONFIG_SYSFS=n and that uses data structures from drivers/base/node.c
> > > which doesn't get compiled with this patch.
> >
> > So, you mean with CONFIG_NUMA=y&&  CONFIG_SYSFS=n&&  CONFIG_HUGETLBFS=y
> > we still get compile error?
> >
> > Which data structures are used by hugetlbfs?
>
> node_states[], which is revealed at link time if you tried to compile your
> patch.  It's obvious that we don't want to add per-node hugetlbfs
> attributes to sysfs directories if sysfs is disabled, so you need to
> modify the hugetlbfs code as well.

Makes sense. Thanks!
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