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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>
This commit is contained in:
Weijie Yang 2014-02-14 14:03:56 +08:00 committed by Greg Kroah-Hartman
parent 52cf6acfb0
commit 6bc2b856bb
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/android/lowmemorykiller.c
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@ -159,8 +159,8 @@ static unsigned long lowmem_scan(struct shrinker *s, struct shrink_control *sc)
selected->pid, selected->comm,
selected_oom_score_adj, selected_tasksize);
lowmem_deathpending_timeout = jiffies + HZ;
send_sig(SIGKILL, selected, 0);
set_tsk_thread_flag(selected, TIF_MEMDIE);
send_sig(SIGKILL, selected, 0);
rem += selected_tasksize;
}