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authorBob Liu <lliubbo@gmail.com>2010-10-26 21:22:10 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-26 23:52:11 (GMT)
commit809c444977adb7313e0612e9e3af4b73ba3f5746 (patch)
tree725f4e352fb34204ec7299bf575251db6f22c942 /mm/memory_hotplug.c
parentf6a3607e5f30dc642bead8cd95c48d47b6b4bfbb (diff)
mm: do_migrate_range: exit loop if not_managed is true
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> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Wu Fengguang <fengguang.wu@intel.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Mel Gorman <mel@csn.ul.ie> 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.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index bb63b36..e4af144 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -696,15 +696,17 @@ 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;

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