From: Weijie Yang <weijie.yang@samsung.com>
Date: Fri, 14 Feb 2014 06:03:56 +0000 (+0800)
Subject: staging: android: lowmemorykiller: set TIF_MEMDIE before send kill sig
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=6bc2b856bb7c;p=openwrt%2Fstaging%2Fblogic.git

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>
---

diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
index 6f094b37f1f1..4bcf00a87270 100644
--- a/drivers/staging/android/lowmemorykiller.c
+++ b/drivers/staging/android/lowmemorykiller.c
@@ -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;
 	}