From 138399196dcb2fb926cc2dbeedfcdb4bf1f1401b Mon Sep 17 00:00:00 2001 From: wu-changsheng Date: Sat, 3 Sep 2022 21:31:15 +0800 Subject: [PATCH 19/20] del gazelle ring cons.tail atomic protect --- src/common/dpdk_common.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/common/dpdk_common.h b/src/common/dpdk_common.h index 987fbdd..1c3e7e8 100644 --- a/src/common/dpdk_common.h +++ b/src/common/dpdk_common.h @@ -141,7 +141,7 @@ static __rte_always_inline uint32_t gazelle_light_ring_dequeue_burst(struct rte_ static __rte_always_inline uint32_t gazelle_ring_sp_enqueue(struct rte_ring *r, void **obj_table, uint32_t n) { uint32_t head = __atomic_load_n(&r->cons.head, __ATOMIC_ACQUIRE); - uint32_t tail = __atomic_load_n(&r->cons.tail, __ATOMIC_ACQUIRE); + uint32_t tail = r->cons.tail; uint32_t entries = r->capacity + tail - head; if (n > entries) { @@ -158,8 +158,8 @@ static __rte_always_inline uint32_t gazelle_ring_sp_enqueue(struct rte_ring *r, static __rte_always_inline uint32_t gazelle_ring_sc_dequeue(struct rte_ring *r, void **obj_table, uint32_t n) { - uint32_t cons = __atomic_load_n(&r->cons.tail, __ATOMIC_ACQUIRE); uint32_t prod = __atomic_load_n(&r->prod.tail, __ATOMIC_ACQUIRE); + uint32_t cons = r->cons.tail; uint32_t entries = prod - cons; if (n > entries) { @@ -172,7 +172,7 @@ static __rte_always_inline uint32_t gazelle_ring_sc_dequeue(struct rte_ring *r, __rte_ring_dequeue_elems(r, cons, obj_table, sizeof(void *), n); - __atomic_store_n(&r->cons.tail, cons + n, __ATOMIC_RELEASE); + r->cons.tail = cons + n; return n; } -- 2.23.0