At 11/16/2012 08:29 AM, Andrew Morton Wrote:
> On Thu, 15 Nov 2012 16:57:36 +0800
> Wen Congyang <wency@xxxxxxxxxxxxxx> wrote:
>
>> N_HIGH_MEMORY stands for the nodes that has normal or high memory.
>> N_MEMORY stands for the nodes that has any memory.
>>
>> The code here need to handle with the nodes which have memory, we should
>> use N_MEMORY instead.
>>
>> Since we introduced N_MEMORY, we update the initialization of node_states.
>
> reset_zone_present_pages() has been removed by the recently-queued
> revert-mm-fix-up-zone-present-pages.patch, so I dropped that hunk.
>
> We still have
>
> akpm:/usr/src/25> grep N_HIGH_MEMORY mm/page_alloc.c
> [N_HIGH_MEMORY] = { { [0] = 1UL } },
> node_set_state(nid, N_HIGH_MEMORY);
> if (N_NORMAL_MEMORY != N_HIGH_MEMORY &&
>
> which I hope is correct. Can you please check it?
>
Yes, it is correct.
We will introduce N_MEMORY nodemask in part4, and N_MEMORY is N_HIGH_MEMORY
in this patchset. So we don't init and update N_MEMORY nodemask in this patchset.
Thanks
Wen Congyang
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