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| author | Bob Liu <lliubbo@gmail.com> | 2010-10-26 14:22:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-26 16:52:11 -0700 |
| commit | 809c444977adb7313e0612e9e3af4b73ba3f5746 (patch) | |
| tree | 725f4e352fb34204ec7299bf575251db6f22c942 /mm/memory_hotplug.c | |
| parent | f6a3607e5f30dc642bead8cd95c48d47b6b4bfbb (diff) | |
| download | lwn-809c444977adb7313e0612e9e3af4b73ba3f5746.tar.gz lwn-809c444977adb7313e0612e9e3af4b73ba3f5746.zip | |
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.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index bb63b36c4413..e4af144ee409 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; |