diff options
| author | Wen Congyang <wency@cn.fujitsu.com> | 2012-12-11 16:00:45 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-11 17:22:22 -0800 |
| commit | b023f46813cde6e3b8a8c24f432ff9c1fd8e9a64 (patch) | |
| tree | edac3509e7c44136450e20d7f9cc81de35926650 /mm/memory_hotplug.c | |
| parent | fa7194eb99b8e9fefe96f045002648ffb55f53c0 (diff) | |
memory-hotplug: skip HWPoisoned page when offlining pages
hwpoisoned may be set when we offline a page by the sysfs interface
/sys/devices/system/memory/soft_offline_page or
/sys/devices/system/memory/hard_offline_page. If we don't clear
this flag when onlining pages, this page can't be freed, and will
not in free list. So we can't offline these pages again. So we
should skip such page when offlining pages.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Jiang Liu <liuj97@gmail.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Andi Kleen <andi@firstfloor.org>
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 | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index e4eeacae2b9..0095d156324 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -847,7 +847,7 @@ check_pages_isolated_cb(unsigned long start_pfn, unsigned long nr_pages, { int ret; long offlined = *(long *)data; - ret = test_pages_isolated(start_pfn, start_pfn + nr_pages); + ret = test_pages_isolated(start_pfn, start_pfn + nr_pages, true); offlined = nr_pages; if (!ret) *(long *)data += offlined; @@ -894,7 +894,8 @@ static int __ref __offline_pages(unsigned long start_pfn, nr_pages = end_pfn - start_pfn; /* set above range as isolated */ - ret = start_isolate_page_range(start_pfn, end_pfn, MIGRATE_MOVABLE); + ret = start_isolate_page_range(start_pfn, end_pfn, + MIGRATE_MOVABLE, true); if (ret) goto out; |