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| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2010-10-26 14:21:10 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-12-09 13:24:16 -0800 |
| commit | b9187a11bc39b9c499593a04d6a132ce784e0623 (patch) | |
| tree | 13c481886698e97939f228970f97410eded63e51 | |
| parent | 466321450a6e69af401c6cf9e146fa92cde6debb (diff) | |
| download | lwn-b9187a11bc39b9c499593a04d6a132ce784e0623.tar.gz lwn-b9187a11bc39b9c499593a04d6a132ce784e0623.zip | |
mm: fix return value of scan_lru_pages in memory unplug
commit f8f72ad5396987e05a42cf7eff826fb2a15ff148 upstream.
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | mm/memory_hotplug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 89fee2dcb039..070b4da0f6a5 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -612,7 +612,7 @@ 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; |