diff options
| -rw-r--r-- | init/Kconfig | 8 | ||||
| -rw-r--r-- | kernel/rcutree.c | 2 |
2 files changed, 9 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig index f6a1830165ce..c26b8a1d2b57 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -451,6 +451,14 @@ config RCU_USER_QS excluded from the global RCU state machine and thus doesn't to keep the timer tick on for RCU. +config RCU_USER_QS_FORCE + bool "Force userspace extended QS by default" + depends on RCU_USER_QS + help + Set the hooks in user/kernel boundaries by default in order to + test this feature that treats userspace as an extended quiescent + state until we have a real user like a full adaptive nohz option. + config RCU_FANOUT int "Tree-based hierarchical RCU fanout value" range 2 64 if 64BIT diff --git a/kernel/rcutree.c b/kernel/rcutree.c index d2e74c8d4b0e..812d04b6b395 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -206,7 +206,7 @@ EXPORT_SYMBOL_GPL(rcu_note_context_switch); DEFINE_PER_CPU(struct rcu_dynticks, rcu_dynticks) = { .dynticks_nesting = DYNTICK_TASK_EXIT_IDLE, .dynticks = ATOMIC_INIT(1), -#ifdef CONFIG_RCU_USER_QS +#if defined(CONFIG_RCU_USER_QS) && !defined(CONFIG_RCU_USER_QS_FORCE) .ignore_user_qs = true, #endif }; |