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Diffstat (limited to 'kernel/rcu/tree.c')
-rw-r--r--kernel/rcu/tree.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index f07343b54fe5..2cb46d51d715 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -57,6 +57,8 @@
#include <linux/trace_events.h>
#include <linux/suspend.h>
+#include <soc/qcom/watchdog.h>
+
#include "tree.h"
#include "rcu.h"
@@ -1298,6 +1300,11 @@ static void print_other_cpu_stall(struct rcu_state *rsp, unsigned long gpnum)
rcu_check_gp_kthread_starvation(rsp);
+#ifdef CONFIG_RCU_STALL_WATCHDOG_BITE
+ /* Induce watchdog bite */
+ msm_trigger_wdog_bite();
+#endif
+
force_quiescent_state(rsp); /* Kick them all. */
}
@@ -1333,6 +1340,11 @@ static void print_cpu_stall(struct rcu_state *rsp)
jiffies + 3 * rcu_jiffies_till_stall_check() + 3);
raw_spin_unlock_irqrestore(&rnp->lock, flags);
+#ifdef CONFIG_RCU_STALL_WATCHDOG_BITE
+ /* Induce non secure watchdog bite to collect context */
+ msm_trigger_wdog_bite();
+#endif
+
/*
* Attempt to revive the RCU machinery by forcing a context switch.
*