Commit f8f72ad5 authored Oct 26, 2010 by KAMEZAWA Hiroyuki Committed by Linus Torvalds Oct 26, 2010

mm: fix return value of scan_lru_pages in memory unplug



scan_lru_pages returns pfn. So, it's type should be "unsigned long"
not "int".

Note: I guess this has been work until now because memory hotplug tester's
      machine has not very big memory....
      physical address < 32bit << PAGE_SHIFT.

Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 45352bbf

mm/memory_hotplug.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -659,7 +659,7 @@ static int test_pages_in_a_zone(unsigned long start_pfn, unsigned long end_pfn)
		* Scanning pfn is much easier than scanning lru list.
		* Scan pfn from start to end and Find LRU page.
		*/
		int scan_lru_pages(unsigned long start, unsigned long end)
		unsigned long scan_lru_pages(unsigned long start, unsigned long end)
		{
		unsigned long pfn;
		struct page *page;