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Subject[PATCH 3/2][BUGFIX] fix memory isolation notifier return value check
Sorry, the 3rd patch for this set.
==

From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>

Even if notifier cannot find any pages, it doesn't mean
no pages are available...(For example, there is no notifier.)
Anyway, we check all pages in the range, later.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: mmotm-0827/mm/page_alloc.c
===================================================================
--- mmotm-0827.orig/mm/page_alloc.c
+++ mmotm-0827/mm/page_alloc.c
@@ -5360,7 +5360,7 @@ int set_migratetype_isolate(struct page
*/
notifier_ret = memory_isolate_notify(MEM_ISOLATE_COUNT, &arg);
notifier_ret = notifier_to_errno(notifier_ret);
- if (notifier_ret || !arg.pages_found)
+ if (notifier_ret)
goto out;
immobile = __count_unmovable_pages(zone ,page);



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