[dpdk-dev] [PATCH v4 2/5] eal: use wait event for read pflock

[Feifei Wang]

Instead of polling for read pflock update, use wait event scheme for
this case.

Signed-off-by: Feifei Wang <feifei.wang2 at arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang at arm.com>
---
 lib/eal/include/generic/rte_pflock.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/eal/include/generic/rte_pflock.h b/lib/eal/include/generic/rte_pflock.h
index e57c179ef2..c1c230d131 100644
--- a/lib/eal/include/generic/rte_pflock.h
+++ b/lib/eal/include/generic/rte_pflock.h
@@ -121,9 +121,7 @@ rte_pflock_read_lock(rte_pflock_t *pf)
 		return;
 
 	/* Wait for current write phase to complete. */
-	while ((__atomic_load_n(&pf->rd.in, __ATOMIC_ACQUIRE)
-		& RTE_PFLOCK_WBITS) == w)
-		rte_pause();
+	rte_wait_event(&pf->rd.in, RTE_PFLOCK_WBITS, w, ==, __ATOMIC_ACQUIRE, 16);
 }
 
 /**
-- 
2.25.1