diff --git a/include/spdk_internal/event.h b/include/spdk_internal/event.h
index 9524bcb83..4ce25fed0 100644
--- a/include/spdk_internal/event.h
+++ b/include/spdk_internal/event.h
@@ -43,6 +43,7 @@ extern "C" {
 #include "spdk/event.h"
 #include "spdk/json.h"
 #include "spdk/thread.h"
+#include "spdk/util.h"
 
 struct spdk_event {
 	uint32_t		lcore;
@@ -51,6 +52,36 @@ struct spdk_event {
 	void			*arg2;
 };
 
+enum spdk_reactor_state {
+	SPDK_REACTOR_STATE_UNINITIALIZED = 0,
+	SPDK_REACTOR_STATE_INITIALIZED = 1,
+	SPDK_REACTOR_STATE_RUNNING = 2,
+	SPDK_REACTOR_STATE_EXITING = 3,
+	SPDK_REACTOR_STATE_SHUTDOWN = 4,
+};
+
+struct spdk_lw_thread {
+	TAILQ_ENTRY(spdk_lw_thread)	link;
+};
+
+struct spdk_reactor {
+	/* Lightweight threads running on this reactor */
+	TAILQ_HEAD(, spdk_lw_thread)			threads;
+
+	/* Logical core number for this reactor. */
+	uint32_t					lcore;
+
+	struct {
+		uint32_t				is_valid : 1;
+		uint32_t				reserved : 31;
+	} flags;
+
+	struct spdk_ring				*events;
+
+	/* The last known rusage values */
+	struct rusage					rusage;
+} __attribute__((aligned(SPDK_CACHE_LINE_SIZE)));
+
 int spdk_reactors_init(void);
 void spdk_reactors_fini(void);
 
diff --git a/lib/event/reactor.c b/lib/event/reactor.c
index a9cd98aef..5fc91d919 100644
--- a/lib/event/reactor.c
+++ b/lib/event/reactor.c
@@ -53,36 +53,6 @@
 
 #define SPDK_EVENT_BATCH_SIZE		8
 
-enum spdk_reactor_state {
-	SPDK_REACTOR_STATE_UNINITIALIZED = 0,
-	SPDK_REACTOR_STATE_INITIALIZED = 1,
-	SPDK_REACTOR_STATE_RUNNING = 2,
-	SPDK_REACTOR_STATE_EXITING = 3,
-	SPDK_REACTOR_STATE_SHUTDOWN = 4,
-};
-
-struct spdk_lw_thread {
-	TAILQ_ENTRY(spdk_lw_thread)	link;
-};
-
-struct spdk_reactor {
-	/* Lightweight threads running on this reactor */
-	TAILQ_HEAD(, spdk_lw_thread)			threads;
-
-	/* Logical core number for this reactor. */
-	uint32_t					lcore;
-
-	struct {
-		uint32_t				is_valid : 1;
-		uint32_t				reserved : 31;
-	} flags;
-
-	struct spdk_ring				*events;
-
-	/* The last known rusage values */
-	struct rusage					rusage;
-} __attribute__((aligned(SPDK_CACHE_LINE_SIZE)));
-
 static struct spdk_reactor *g_reactors;
 static struct spdk_cpuset g_reactor_core_mask;
 static enum spdk_reactor_state	g_reactor_state = SPDK_REACTOR_STATE_UNINITIALIZED;