diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -895,8 +895,7 @@
 int
 sys_fchdir(struct thread *td, struct fchdir_args *uap)
 {
-	struct vnode *vp, *tdp;
-	struct mount *mp;
+	struct vnode *vp;
 	struct file *fp;
 	int error;
 
@@ -908,23 +907,17 @@
 	vp = fp->f_vnode;
 	vrefact(vp);
 	fdrop(fp, td);
+
 	vn_lock(vp, LK_SHARED | LK_RETRY);
 	AUDIT_ARG_VNODE1(vp);
 	error = change_dir(vp, td);
-	while (!error && (mp = vp->v_mountedhere) != NULL) {
-		if (vfs_busy(mp, 0))
-			continue;
-		error = VFS_ROOT(mp, LK_SHARED, &tdp);
-		vfs_unbusy(mp);
-		if (error != 0)
-			break;
-		vput(vp);
-		vp = tdp;
-	}
-	if (error != 0) {
+	if (__predict_false(error != 0)) {
 		vput(vp);
 		return (error);
 	}
+	error = vn_cross_mounts(vp, LK_SHARED, &vp);
+	if (__predict_false(error != 0))
+		return (error);
 	VOP_UNLOCK(vp);
 	pwd_chdir(td, vp);
 	return (0);