Commit 809c4449 authored by Bob Liu's avatar Bob Liu Committed by Linus Torvalds

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: default avatarBob Liu <lliubbo@gmail.com>
Acked-by: default avatarKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: default avatarWu Fengguang <fengguang.wu@intel.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f6a3607e
......@@ -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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