diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
index a555d675a188..ba45a55bfe5c 100644
--- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
@@ -5701,6 +5701,30 @@ zfs_freebsd_getpages(ap)
 	return (zfs_getpages(ap->a_vp, ap->a_m, ap->a_count, ap->a_reqpage));
 }
 
+static int
+zfs_freebsd_bmap(ap)
+	struct vop_bmap_args /* {
+		struct vnode *a_vp;
+		daddr_t  a_bn;
+		struct bufobj **a_bop;
+		daddr_t *a_bnp;
+		int *a_runp;
+		int *a_runb;
+	} */ *ap;
+{
+
+	if (ap->a_bop != NULL)
+		*ap->a_bop = &ap->a_vp->v_bufobj;
+	if (ap->a_bnp != NULL)
+		*ap->a_bnp = ap->a_bn;
+	if (ap->a_runp != NULL)
+		*ap->a_runp = 0;
+	if (ap->a_runb != NULL)
+		*ap->a_runb = 0;
+
+	return (0);
+}
+
 static int
 zfs_freebsd_open(ap)
 	struct vop_open_args /* {
@@ -6806,7 +6830,7 @@ struct vop_vector zfs_vnodeops = {
 	.vop_remove =		zfs_freebsd_remove,
 	.vop_rename =		zfs_freebsd_rename,
 	.vop_pathconf =		zfs_freebsd_pathconf,
-	.vop_bmap =		VOP_EOPNOTSUPP,
+	.vop_bmap =		zfs_freebsd_bmap,
 	.vop_fid =		zfs_freebsd_fid,
 	.vop_getextattr =	zfs_getextattr,
 	.vop_deleteextattr =	zfs_deleteextattr,