diff options
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/rcu.h | 2 | ||||
| -rw-r--r-- | kernel/rcu/tree.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h index 59c471de342a..f4a411964c41 100644 --- a/kernel/rcu/rcu.h +++ b/kernel/rcu/rcu.h @@ -56,6 +56,8 @@ #define DYNTICK_TASK_EXIT_IDLE (DYNTICK_TASK_NEST_VALUE + \ DYNTICK_TASK_FLAG) +#define DYNTICK_IRQ_NONIDLE ((INT_MAX / 2) + 1) + /* * Grace-period counter management. diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 419f3c38e1b6..142cdd4a50c9 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -818,6 +818,7 @@ static void rcu_eqs_enter(bool user) struct rcu_dynticks *rdtp; rdtp = this_cpu_ptr(&rcu_dynticks); + WRITE_ONCE(rdtp->dynticks_nmi_nesting, 0); WARN_ON_ONCE(IS_ENABLED(CONFIG_RCU_EQS_DEBUG) && (rdtp->dynticks_nesting & DYNTICK_TASK_NEST_MASK) == 0); if ((rdtp->dynticks_nesting & DYNTICK_TASK_NEST_MASK) == DYNTICK_TASK_NEST_VALUE) @@ -1008,6 +1009,7 @@ static void rcu_eqs_exit(bool user) rcu_eqs_exit_common(DYNTICK_TASK_EXIT_IDLE, user); rdtp->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE; __this_cpu_dec(disable_rcu_irq_enter); + WRITE_ONCE(rdtp->dynticks_nmi_nesting, DYNTICK_IRQ_NONIDLE); } } |