diff --git a/lib/libspl/include/sys/time.h b/lib/libspl/include/sys/time.h
index f05fcaa1c6..dc645fa5c3 100644
--- a/lib/libspl/include/sys/time.h
+++ b/lib/libspl/include/sys/time.h
@@ -54,10 +54,14 @@
 #define	MSEC2NSEC(m)    ((hrtime_t)(m) * (NANOSEC / MILLISEC))
 #endif
 
-#ifndef NSEC2MSEC
+#ifndef	NSEC2MSEC
 #define	NSEC2MSEC(n)    ((n) / (NANOSEC / MILLISEC))
 #endif
 
+#ifndef USEC2NSEC
+#define	USEC2NSEC(m)	((hrtime_t)(m) * (NANOSEC / MICROSEC))
+#endif
+
 #ifndef	NSEC2SEC
 #define	NSEC2SEC(n)	((n) / (NANOSEC / SEC))
 #endif
diff --git a/module/zfs/mmp.c b/module/zfs/mmp.c
index 15eea41abf..dc5c6a74f4 100644
--- a/module/zfs/mmp.c
+++ b/module/zfs/mmp.c
@@ -462,9 +462,9 @@ mmp_thread(spa_t *spa)
 			mmp_write_uberblock(spa);
 
 		CALLB_CPR_SAFE_BEGIN(&cpr);
-		(void) cv_timedwait_sig(&mmp->mmp_thread_cv,
-		    &mmp->mmp_thread_lock, ddi_get_lbolt() +
-		    ((next_time - gethrtime()) / (NANOSEC / hz)));
+		(void) cv_timedwait_sig_hires(&mmp->mmp_thread_cv,
+		    &mmp->mmp_thread_lock, next_time, USEC2NSEC(1),
+		    CALLOUT_FLAG_ABSOLUTE);
 		CALLB_CPR_SAFE_END(&cpr, &mmp->mmp_thread_lock);
 	}