diff --git a/include/sys/vdev_raidz.h b/include/sys/vdev_raidz.h
index eec5b17aa7c4..e8af9f3715f1 100644
--- a/include/sys/vdev_raidz.h
+++ b/include/sys/vdev_raidz.h
@@ -66,6 +66,9 @@ extern const zio_vsd_ops_t vdev_raidz_vsd_ops;
 /*
  * vdev_raidz_math interface
  */
+#if defined(__linux__)
+extern const char *zfs_vdev_raidz_impl;
+#endif
 void vdev_raidz_math_init(void);
 void vdev_raidz_math_fini(void);
 const struct raidz_impl_ops *vdev_raidz_math_get_ops(void);
diff --git a/module/os/linux/zfs/vdev_disk.c b/module/os/linux/zfs/vdev_disk.c
index 13c3013ee626..8f464bb9de9e 100644
--- a/module/os/linux/zfs/vdev_disk.c
+++ b/module/os/linux/zfs/vdev_disk.c
@@ -1637,15 +1637,12 @@ param_set_max_auto_ashift(const char *buf, zfs_kernel_param_t *kp)
 	return (0);
 }
 
-const char *zfs_vdev_raidz_impl = "TODO";
-
 int
 param_set_raidz_impl(const char *val, zfs_kernel_param_t *kp)
 {
 	int error;
 
 	error = vdev_raidz_impl_set(val);
-
 	return (error);
 }
 
diff --git a/module/zfs/vdev_raidz_math.c b/module/zfs/vdev_raidz_math.c
index 34a08f5c076f..6eb017c29c25 100644
--- a/module/zfs/vdev_raidz_math.c
+++ b/module/zfs/vdev_raidz_math.c
@@ -83,6 +83,9 @@ static boolean_t raidz_math_initialized = B_FALSE;
 
 static uint32_t zfs_vdev_raidz_impl_setting = IMPL_SCALAR;
 static uint32_t user_sel_impl = IMPL_FASTEST;
+#if defined(__linux__)
+const char *zfs_vdev_raidz_impl = "fastest";
+#endif
 
 /* Hold all supported implementations */
 static size_t raidz_supp_impl_cnt = 0;
@@ -628,6 +631,9 @@ vdev_raidz_impl_set(const char *val)
 			atomic_swap_32(&zfs_vdev_raidz_impl_setting, impl);
 		else
 			atomic_swap_32(&user_sel_impl, impl);
+#if defined(__linux__)
+		zfs_vdev_raidz_impl = raidz_supp_impl[i]->name;
+#endif
 	}
 
 	return (err);