@@ -2,6 +2,7 @@
*
* Copyright (c) 2017,2018 HXT-semitech Corporation.
* Copyright (c) 2007-2009 Kip Macy kmacy@freebsd.org
+ * Copyright (c) 2019 Arm Limited
* All rights reserved.
* Derived from FreeBSD's bufring.h
* Used as BSD-3 Licensed with permission from Kip Macy.
@@ -21,8 +22,7 @@ update_tail(struct rte_ring_headtail *ht, uint32_t old_val, uint32_t new_val,
* we need to wait for them to complete
*/
if (!single)
- while (unlikely(ht->tail != old_val))
- rte_pause();
+ rte_wait_until_equal_32(&ht->tail, old_val, __ATOMIC_RELAXED);
__atomic_store_n(&ht->tail, new_val, __ATOMIC_RELEASE);
}
@@ -23,8 +23,7 @@ update_tail(struct rte_ring_headtail *ht, uint32_t old_val, uint32_t new_val,
* we need to wait for them to complete
*/
if (!single)
- while (unlikely(ht->tail != old_val))
- rte_pause();
+ rte_wait_until_equal_32(&ht->tail, old_val, __ATOMIC_RELAXED);
ht->tail = new_val;
}