Re: [PATCH 1/4] mmzone: make holding lock_memory_hotplug() arequirement for updating pgdat size

From: David Rientjes
Date: Wed May 01 2013 - 18:39:42 EST


On Wed, 1 May 2013, Cody P Schafer wrote:

> They are also initialized at boot without pgdat_resize_lock(), if we consider
> boot time, quite a few of the statements on when locking is required are
> wrong.
>
> That said, you are correct that it is not strictly required to hold
> lock_memory_hotplug() when updating the fields in question because
> pgdat_resize_lock() is used.
>

I think you've confused node size fields with zone size fields.
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