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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2010-10-26 21:21:10 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-26 23:52:03 (GMT)
commitf8f72ad5396987e05a42cf7eff826fb2a15ff148 (patch)
tree95dde867832a7e58a535f543b0f22498ff9f2be3 /mm/memory_hotplug.c
parent45352bbf48e95078b4acd20774f49e72676e1e0f (diff)
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>
Diffstat (limited to 'mm/memory_hotplug.c')
-rw-r--r--mm/memory_hotplug.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index d4e940a..06662c5 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -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;

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