tree 42c001d079ec926186873b91d7d84bf66c54bcad
parent 687875fb7de4a95223af20ee024282fa9099f860
author Michal Hocko <mhocko@suse.cz> 1327098838 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1327336727 -0800

mm: __count_immobile_pages(): make sure the node is online

page_zone() requires an online node otherwise we are accessing NULL
NODE_DATA.  This is not an issue at the moment because node_zones are
located at the structure beginning but this might change in the future
so better be careful about that.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>