From: "Paul E. McKenney" <[email protected]> Because force_qs_rnp() is invoked only from the force-quiescent-state code which runs only in the context of the grace-period kthread, a grace period must always be in progress throughout force_qs_rnp()'s execution. This commit therefore removes the rcu_gp_in_progress() check and the associated dead code.
Signed-off-by: Paul E. McKenney <[email protected]> --- kernel/rcu/tree.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 7c323e320075..20aeb6f9fe38 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -2718,10 +2718,6 @@ static void force_qs_rnp(struct rcu_state *rsp, mask = 0; raw_spin_lock_irqsave(&rnp->lock, flags); smp_mb__after_unlock_lock(); - if (!rcu_gp_in_progress(rsp)) { - raw_spin_unlock_irqrestore(&rnp->lock, flags); - return; - } if (rnp->qsmask == 0) { if (rcu_state_p == &rcu_sched_state || rsp != rcu_state_p || -- 1.8.1.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
