This commit checks for pre-scheduler state, and if that early in the boot process, synchronize_srcu() and friends are no-ops.
Signed-off-by: Paul E. McKenney <[email protected]> --- kernel/rcu/srcu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c index 6beeba7b0b67..1026ce24922f 100644 --- a/kernel/rcu/srcu.c +++ b/kernel/rcu/srcu.c @@ -411,6 +411,8 @@ static void __synchronize_srcu(struct srcu_struct *sp, int trycount) lock_is_held(&rcu_sched_lock_map), "Illegal synchronize_srcu() in same-type SRCU (or in RCU) read-side critical section"); + if (rcu_scheduler_active == RCU_SCHEDULER_INACTIVE) + return; might_sleep(); init_completion(&rcu.completion); -- 2.5.2
