mm/hotplug: prepare for removing num_physpages

Prepare for removing num_physpages.

Signed-off-by: Jiang Liu <[email protected]>
Cc: Wen Congyang <[email protected]>
Cc: Tang Chen <[email protected]>
Cc: Yasuaki Ishimatsu <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 5e34922124a36af7d53e35d8b8b5e26b89710dda..106602e5a70e987d79d8f9a1d001f4b863503009 100644 (file)
--- 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);