staging: android: lowmemorykiller: set TIF_MEMDIE before send kill sig
Set TIF_MEMDIE tsk_thread flag before send kill signal to the selected thread. This is to fit a usual code sequence and avoid potential race issue. Signed-off-by: Weijie Yang <weijie.yang@samsung.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -159,8 +159,8 @@ static unsigned long lowmem_scan(struct shrinker *s, struct shrink_control *sc)
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selected->pid, selected->comm,
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selected->pid, selected->comm,
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selected_oom_score_adj, selected_tasksize);
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selected_oom_score_adj, selected_tasksize);
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lowmem_deathpending_timeout = jiffies + HZ;
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lowmem_deathpending_timeout = jiffies + HZ;
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send_sig(SIGKILL, selected, 0);
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set_tsk_thread_flag(selected, TIF_MEMDIE);
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set_tsk_thread_flag(selected, TIF_MEMDIE);
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send_sig(SIGKILL, selected, 0);
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rem += selected_tasksize;
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rem += selected_tasksize;
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}
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}
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