[PATCH 16/16] rcu: use previous value atomic fetch operations

[Tyler Retzlaff]

Use __atomic_fetch_{add,and,or,sub,xor} instead of
__atomic_{add,and,or,sub,xor}_fetch adding the necessary code to
allow consumption of the resulting value.

Signed-off-by: Tyler Retzlaff <roret...@linux.microsoft.com>
---
 lib/rcu/rte_rcu_qsbr.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/rcu/rte_rcu_qsbr.h b/lib/rcu/rte_rcu_qsbr.h
index ccae5d5..1aa078e 100644
--- a/lib/rcu/rte_rcu_qsbr.h
+++ b/lib/rcu/rte_rcu_qsbr.h
@@ -462,7 +462,7 @@ struct rte_rcu_qsbr_dq_parameters {
         * structure are visible to the workers before the token
         * update is visible.
         */
-       t = __atomic_add_fetch(&v->token, 1, __ATOMIC_RELEASE);
+       t = __atomic_fetch_add(&v->token, 1, __ATOMIC_RELEASE) + 1;
 
        return t;
 }
-- 
1.8.3.1