From b5685e9263a6f3a8da546b8a46382f18a63745c9 Mon Sep 17 00:00:00 2001
From: Xishi Qiu <qiuxishi@huawei.com>
Date: Tue, 8 Sep 2015 15:04:16 -0700
Subject: [PATCH] memory-hotplug: fix comments in zone_spanned_pages_in_node()
 and zone_spanned_pages_in_node()

When hot adding a node from add_memory(), we will add memblock first, so
the node is not empty.  But when called from cpu_up(), the node should
be empty.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>\
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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