This memory barrier is not needed as rcu_segcblist_add_len() already includes a memory barrier. Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx> --- kernel/rcu/tree.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 346a05506935..6c6d3c7036e6 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -2525,7 +2525,6 @@ static void rcu_do_batch(struct rcu_data *rdp) /* Update counts and requeue any remaining callbacks. */ rcu_segcblist_insert_done_cbs(&rdp->cblist, &rcl); - smp_mb(); /* List handling before counting for rcu_barrier(). */ rcu_segcblist_add_len(&rdp->cblist, -count); /* Reinstate batch limit if we have worked down the excess. */ -- 2.28.0.1011.ga647a8990f-goog
