From: Feifei Wang <feifei.wang2@arm.com>
Cc: dev@dpdk.org, nd@arm.com, Feifei Wang <feifei.wang2@arm.com>,
Ruifeng Wang <ruifeng.wang@arm.com>
Subject: [dpdk-dev] [PATCH v1 1/2] eal/common: use wait until equal API for tight loop
Date: Wed, 25 Aug 2021 16:01:26 +0800 [thread overview]
Message-ID: <20210825080127.495645-2-feifei.wang2@arm.com> (raw)
In-Reply-To: <20210825080127.495645-1-feifei.wang2@arm.com>
Instead of polling for mcfg->magic to be updated, use wait_until_equal
API.
Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
---
lib/eal/common/eal_common_mcfg.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/lib/eal/common/eal_common_mcfg.c b/lib/eal/common/eal_common_mcfg.c
index c77ba97a9f..cf4a279905 100644
--- a/lib/eal/common/eal_common_mcfg.c
+++ b/lib/eal/common/eal_common_mcfg.c
@@ -30,8 +30,7 @@ eal_mcfg_wait_complete(void)
struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
/* wait until shared mem_config finish initialising */
- while (mcfg->magic != RTE_MAGIC)
- rte_pause();
+ rte_wait_until_equal_32(&mcfg->magic, RTE_MAGIC, __ATOMIC_RELAXED);
}
int
--
2.25.1
next prev parent reply other threads:[~2021-08-25 8:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-25 8:01 [dpdk-dev] [PATCH v1 0/2] replace tight loop with wait until equal api Feifei Wang
2021-08-25 8:01 ` Feifei Wang [this message]
2021-08-25 8:01 ` [dpdk-dev] [PATCH v1 2/2] mcslock: use wait until equal API for tight loop Feifei Wang
2021-10-19 11:10 ` David Marchand
2021-10-20 2:46 ` [dpdk-dev] 回复: " Feifei Wang
2021-10-20 2:54 ` Feifei Wang
2021-10-15 10:07 ` [dpdk-dev] 回复: [PATCH v1 0/2] replace tight loop with wait until equal api Feifei Wang
2021-10-20 3:03 ` [dpdk-dev] [PATCH v2 " Feifei Wang
2021-10-20 3:03 ` [dpdk-dev] [PATCH v2 1/2] eal/common: use wait until equal API for tight loop Feifei Wang
2021-10-20 3:03 ` [dpdk-dev] [PATCH v2 2/2] mcslock: " Feifei Wang
2021-10-20 6:20 ` [dpdk-dev] [PATCH v2 0/2] replace tight loop with wait until equal api David Marchand
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