On Mon, 13 Dec 2010, Shaohui Zheng wrote:
> For the state transition to N_HIGH_MEMORY, it does not happen on the above too
> interfaces. It happens when the memory was onlined with sysfs /sys/device/system/memory/memoryXX/online
> interface.
>
> That is the code path:
> store_mem_state
> ->memory_block_change_state
> ->memory_block_action
> ->online_pages
>
> if (onlined_pages) {
> kswapd_run(zone_to_nid(zone));
> node_set_state(zone_to_nid(zone), N_HIGH_MEMORY);
> }
>
> does it address your question? thanks.
>
Ok, thanks!
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