diff --git a/sbin/mount/mount.c b/sbin/mount/mount.c
--- a/sbin/mount/mount.c
+++ b/sbin/mount/mount.c
@@ -692,6 +692,13 @@
 			xo_emit("{D:, }{Lw:fsid}{:fsid}", fsidbuf);
 			free(fsidbuf);
 		}
+		if (sfp->f_nvnodelistsize != 0 || sfp->f_avnodecount != 0) {
+			xo_open_container("vnodes");
+			xo_emit("{D:, }{Lwc:vnodes}{Lw:count}{w:count/%ju}{Lw:active}{:active/%ju}",
+			    (uintmax_t)sfp->f_nvnodelistsize,
+			    (uintmax_t)sfp->f_avnodecount);
+			xo_close_container("vnodes");
+		}
 	}
 	xo_emit("{D:)}\n");
 }
diff --git a/sys/kern/vfs_mount.c b/sys/kern/vfs_mount.c
--- a/sys/kern/vfs_mount.c
+++ b/sys/kern/vfs_mount.c
@@ -2610,6 +2610,8 @@
 int
 __vfs_statfs(struct mount *mp, struct statfs *sbp)
 {
+	struct vnode *vp;
+	uint32_t count;
 
 	/*
 	 * Filesystems only fill in part of the structure for updates, we
@@ -2624,6 +2626,16 @@
 	sbp->f_version = STATFS_VERSION;
 	sbp->f_namemax = NAME_MAX;
 	sbp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
+	sbp->f_nvnodelistsize = mp->mnt_nvnodelistsize;
+
+	count = 0;
+	MNT_ILOCK(mp);
+	TAILQ_FOREACH(vp, &mp->mnt_nvnodelist, v_nmntvnodes) {
+		if (vrefcnt(vp) > 0) /* racy but does not matter */
+			count++;
+	}
+	MNT_IUNLOCK(mp);
+	sbp->f_avnodecount = count;
 
 	return (mp->mnt_op->vfs_statfs(mp, sbp));
 }
diff --git a/sys/sys/mount.h b/sys/sys/mount.h
--- a/sys/sys/mount.h
+++ b/sys/sys/mount.h
@@ -91,7 +91,9 @@
 	uint64_t f_asyncwrites;		/* count of async writes since mount */
 	uint64_t f_syncreads;		/* count of sync reads since mount */
 	uint64_t f_asyncreads;		/* count of async reads since mount */
-	uint64_t f_spare[10];		/* unused spare */
+	uint32_t f_nvnodelistsize;	/* # of vnodes */
+	uint32_t f_avnodecount;		/* # of active vnodes */
+	uint64_t f_spare[9];		/* unused spare */
 	uint32_t f_namemax;		/* maximum filename length */
 	uid_t	  f_owner;		/* user that mounted the filesystem */
 	fsid_t	  f_fsid;		/* filesystem id */