[RESEND, PATCH 4/6] memcg: fix broken boolean expression

[Kirill A. Shutemov]

From: "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>

action != CPU_DEAD || action != CPU_DEAD_FROZEN is always true.

Signed-off-by: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxx>
---
 mm/memcontrol.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 831cdc4..0b5a3f8 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2085,7 +2085,7 @@ static int __cpuinit memcg_cpu_hotplug_callback(struct notifier_block *nb,
 		return NOTIFY_OK;
 	}
 
-	if ((action != CPU_DEAD) || action != CPU_DEAD_FROZEN)
+	if (action != CPU_DEAD && action != CPU_DEAD_FROZEN)
 		return NOTIFY_OK;
 
 	for_each_mem_cgroup(iter)
-- 
1.7.8.2

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