On Thu, 25 Aug 2011, Cong Wang wrote:

quoted

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.

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