From: Jiang Liu <liuj97@gmail.com>
Date: Wed, 3 Jul 2013 22:03:44 +0000 (-0700)
Subject: mm/hotplug: prepare for removing num_physpages
X-Git-Tag: firefly_0821_release~176^2~5786^2~322
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e461d627d5c0957457eb354843f3c29b50646d63;p=firefly-linux-kernel-4.4.55.git

mm/hotplug: prepare for removing num_physpages

Prepare for removing num_physpages.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 5e34922124a3..106602e5a70e 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -763,10 +763,6 @@ EXPORT_SYMBOL_GPL(restore_online_page_callback);
 
 void __online_page_set_limits(struct page *page)
 {
-	unsigned long pfn = page_to_pfn(page);
-
-	if (pfn >= num_physpages)
-		num_physpages = pfn + 1;
 }
 EXPORT_SYMBOL_GPL(__online_page_set_limits);