X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_ring%2Frte_ring_generic.h;h=953cdbbd5eb15303b46aefc1493f31bd90aaf85e;hb=d164c609e70b;hp=ea7dbe5b9c07b255077ceec02ec0e0cccfbe0add;hpb=e8ed5056c8747cd5d95a41749e48987ad44dc9b3;p=dpdk.git

diff --git a/lib/librte_ring/rte_ring_generic.h b/lib/librte_ring/rte_ring_generic.h
index ea7dbe5b9c..953cdbbd5e 100644
--- a/lib/librte_ring/rte_ring_generic.h
+++ b/lib/librte_ring/rte_ring_generic.h
@@ -158,11 +158,14 @@ __rte_ring_move_cons_head(struct rte_ring *r, unsigned int is_sc,
 			return 0;
 
 		*new_head = *old_head + n;
-		if (is_sc)
-			r->cons.head = *new_head, success = 1;
-		else
+		if (is_sc) {
+			r->cons.head = *new_head;
+			rte_smp_rmb();
+			success = 1;
+		} else {
 			success = rte_atomic32_cmpset(&r->cons.head, *old_head,
 					*new_head);
+		}
 	} while (unlikely(success == 0));
 	return n;
 }