Re: [PATCH 3/4] mmzone: note that node_size_lock should be manipulated via pgdat_resize_lock()

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On 05/01/2013 03:29 PM, David Rientjes wrote:
On Wed, 1 May 2013, Cody P Schafer wrote:

Signed-off-by: Cody P Schafer <cody@xxxxxxxxxxxxxxxxxx>

Nack, pgdat_resize_unlock() is unnecessary if irqs are known to be
disabled.


All this patch does is is indicate that rather than using node_size_lock directly (as it won't be around without CONFIG_MEMORY_HOTPLUG), one should use the pgdat_resize_[un]lock() helper macros.

And yes, _strictly_ speaking, one could want to avoid the spin_lock_irqsave/restore that pgdat_resize_*lock() does.

Right now we don't provide helpers that do that. Do you see a need for them?

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