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

mm/memory_hotplug.c

+6 −4
Original line number Diff line number Diff line
@@ -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;