current->state == TASK_DEAD means that the task is doing its last
schedule(), page fault is obviously impossible at this stage.

Signed-off-by: Oleg Nesterov <[email protected]>
---
 kernel/sched/fair.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 82088b2..0090e8c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1804,10 +1804,6 @@ void task_numa_fault(int last_cpupid, int mem_node, int 
pages, int flags)
        if (!p->mm)
                return;
 
-       /* Do not worry about placement if exiting */
-       if (p->state == TASK_DEAD)
-               return;
-
        /* Allocate buffer to track faults on a per-node basis */
        if (unlikely(!p->numa_faults_memory)) {
                int size = sizeof(*p->numa_faults_memory) *
-- 
1.5.5.1


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