[PATCH 2/3] do_migrate_range: exit loop if not_managed is true.

[Bob Liu <lliubbo@gmail.com>]

If not_managed is true all pages will be putback to lru, so
break the loop earlier to skip other pages isolate.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
---
 mm/memory_hotplug.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index d4e940a..4f72184 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -709,15 +709,17 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
 					    page_is_file_cache(page));
 
 		} else {
-			/* Becasue we don't have big zone->lock. we should
-			   check this again here. */
-			if (page_count(page))
-				not_managed++;
 #ifdef CONFIG_DEBUG_VM
 			printk(KERN_ALERT "removing pfn %lx from LRU failed\n",
 			       pfn);
 			dump_page(page);
 #endif
+			/* Becasue we don't have big zone->lock. we should
+			   check this again here. */
+			if (page_count(page)) {
+				not_managed++;
+				break;
+			}
 		}
 	}
 	ret = -EBUSY;
-- 
1.5.6.3

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