diff --git a/kernel/rcu/tree_stall.h b/kernel/rcu/tree_stall.h index 6f06dc12904a..7322f5353861 100644 --- a/kernel/rcu/tree_stall.h +++ b/kernel/rcu/tree_stall.h @@ -8,6 +8,7 @@ */ #include +#include ////////////////////////////////////////////////////////////////////////////// // @@ -582,6 +583,7 @@ static void rcu_check_gp_kthread_expired_fqs_timer(void) static void print_other_cpu_stall(unsigned long gp_seq, unsigned long gps) { + enum cons_prio prev_prio; int cpu; unsigned long flags; unsigned long gpa; @@ -597,6 +599,8 @@ static void print_other_cpu_stall(unsigned long gp_seq, unsigned long gps) if (rcu_stall_is_suppressed()) return; + prev_prio = cons_atomic_enter(CONS_PRIO_EMERGENCY); + /* * OK, time to rat on our buddy... * See Documentation/RCU/stallwarn.rst for info on how to debug @@ -651,6 +655,8 @@ static void print_other_cpu_stall(unsigned long gp_seq, unsigned long gps) panic_on_rcu_stall(); rcu_force_quiescent_state(); /* Kick them all. */ + + cons_atomic_exit(CONS_PRIO_EMERGENCY, prev_prio); } static void print_cpu_stall(unsigned long gps)