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mm: do_migrate_range: exit loop if not_managed is true

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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 <[email protected]>
Acked-by: KAMEZAWA Hiroyuki <[email protected]>
Acked-by: Wu Fengguang <[email protected]>
Cc: KOSAKI Motohiro <[email protected]>
Cc: Mel Gorman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Bob Liu 2010-10-26 14:22:10 -07:00 • committed by Linus Torvalds
commit 809c444977
1 changed files with 6 additions and 4 deletions
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10
mm/memory_hotplug.c
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@ -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;