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| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2009-01-29 14:25:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-29 18:04:44 -0800 |
| commit | 299b4eaa302138426d5a9ecd954de1f565d76c94 (patch) | |
| tree | 790271af066eaa6d01f94ff91ab14d54f96c6f62 | |
| parent | 248ae0d43fe7f951352eedfff36572d4b75ce963 (diff) | |
| download | linux-stable-299b4eaa302138426d5a9ecd954de1f565d76c94.tar.gz linux-stable-299b4eaa302138426d5a9ecd954de1f565d76c94.tar.bz2 linux-stable-299b4eaa302138426d5a9ecd954de1f565d76c94.zip | |
memcg: NULL pointer dereference at rmdir on some NUMA systems
N_POSSIBLE doesn't means there is memory...and force_empty can
visit invalid node which have no pgdat.
To visit all valid nodes, N_HIGH_MEMORY should be used.
Reported-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Tested-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/memcontrol.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 76feccd26dc3..8e4be9cb2a6a 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1685,7 +1685,7 @@ move_account: /* This is for making all *used* pages to be on LRU. */ lru_add_drain_all(); ret = 0; - for_each_node_state(node, N_POSSIBLE) { + for_each_node_state(node, N_HIGH_MEMORY) { for (zid = 0; !ret && zid < MAX_NR_ZONES; zid++) { enum lru_list l; for_each_lru(l) { |