3 files changed, 19 insertions, 3 deletions
diff --git a/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h b/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h
index feae4868..924e8940 100644
--- a/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h
+++ b/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h
@@ -62,7 +62,11 @@ extern "C" {
  * Guarantees that the STORE operations generated before the barrier
  * occur before the STORE operations generated after.
  */
+#ifdef RTE_ARCH_64
+#define	rte_wmb() {asm volatile("lwsync" : : : "memory"); }
+#else
 #define	rte_wmb() {asm volatile("sync" : : : "memory"); }
+#endif
 
 /**
  * Read memory barrier.
@@ -70,13 +74,17 @@ extern "C" {
  * Guarantees that the LOAD operations generated before the barrier
  * occur before the LOAD operations generated after.
  */
+#ifdef RTE_ARCH_64
+#define	rte_rmb() {asm volatile("lwsync" : : : "memory"); }
+#else
 #define	rte_rmb() {asm volatile("sync" : : : "memory"); }
+#endif
 
 #define rte_smp_mb() rte_mb()
 
-#define rte_smp_wmb() rte_compiler_barrier()
+#define rte_smp_wmb() rte_wmb()
 
-#define rte_smp_rmb() rte_compiler_barrier()
+#define rte_smp_rmb() rte_rmb()
 
 /*------------------------- 16 bit atomic operations -------------------------*/
 /* To be compatible with Power7, use GCC built-in functions for 16 bit
diff --git a/lib/librte_eal/common/include/rte_tailq.h b/lib/librte_eal/common/include/rte_tailq.h
index 4a686e68..cc3c0f1d 100644
--- a/lib/librte_eal/common/include/rte_tailq.h
+++ b/lib/librte_eal/common/include/rte_tailq.h
@@ -155,6 +155,14 @@ void __attribute__((constructor, used)) tailqinitfn_ ##t(void) \
 		rte_panic("Cannot initialize tailq: %s\n", t.name); \
 }
 
+/* This macro permits both remove and free var within the loop safely.*/
+#ifndef TAILQ_FOREACH_SAFE
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar)		\
+	for ((var) = TAILQ_FIRST((head));			\
+	    (var) && ((tvar) = TAILQ_NEXT((var), field), 1);	\
+	    (var) = (tvar))
+#endif
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/lib/librte_eal/common/include/rte_version.h b/lib/librte_eal/common/include/rte_version.h
index eacc86c1..bbffecff 100644
--- a/lib/librte_eal/common/include/rte_version.h
+++ b/lib/librte_eal/common/include/rte_version.h
@@ -77,7 +77,7 @@ extern "C" {
  *   0-15 = release candidates
  *   16   = release
  */
-#define RTE_VER_RELEASE 3
+#define RTE_VER_RELEASE 4
 
 /**
  * Macro to compute a version number usable for comparisons