Commit d2e7f55f authored by Frederic Weisbecker's avatar Frederic Weisbecker Committed by Neeraj Upadhyay
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rcu/nocb: Remove halfway (de-)offloading handling from bypass 



Bypass enqueue can't happen anymore in the middle of (de-)offloading
since this sort of transition now only applies to offline CPUs.

The related safety check can therefore be removed.

Signed-off-by: default avatarFrederic Weisbecker <frederic@kernel.org>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
Reviewed-by: default avatarPaul E. McKenney <paulmck@kernel.org>
Signed-off-by: default avatarNeeraj Upadhyay <neeraj.upadhyay@kernel.org>
parent 4e26ce42

kernel/rcu/tree_nocb.h

+0 −8
Original line number Diff line number Diff line
@@ -409,14 +409,6 @@ static bool rcu_nocb_try_bypass(struct rcu_data *rdp, struct rcu_head *rhp, 
		return false;

	}



	// In the process of (de-)offloading: no bypassing, but

	// locking.

	if (!rcu_segcblist_completely_offloaded(&rdp->cblist)) {

		rcu_nocb_lock(rdp);

		*was_alldone = !rcu_segcblist_pend_cbs(&rdp->cblist);

		return false; /* Not offloaded, no bypassing. */

	}



	// Don't use ->nocb_bypass during early boot.

	if (rcu_scheduler_active != RCU_SCHEDULER_RUNNING) {

		rcu_nocb_lock(rdp);