diff options
| -rw-r--r-- | kernel/rcutree.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/rcutree.c b/kernel/rcutree.c index 195b3a3313e3..99c6038ad04d 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -324,8 +324,8 @@ void rcu_enter_nohz(void) smp_mb(); /* CPUs seeing ++ must see prior RCU read-side crit sects */ local_irq_save(flags); rdtp = &__get_cpu_var(rcu_dynticks); - rdtp->dynticks++; - rdtp->dynticks_nesting--; + if (--rdtp->dynticks_nesting == 0) + rdtp->dynticks++; WARN_ON_ONCE(rdtp->dynticks & 0x1); local_irq_restore(flags); } |