The fixup for reiser4-new-export_ops.patch:
Added missed reiser4_{init, exit}_context()
---
 linux-2.6.23-mm1/fs/reiser4/export_ops.c |   19 ++++++++++++++-----
 1 files changed, 14 insertions(+), 5 deletions(-)

--- linux-2.6.23-mm1/fs/reiser4/export_ops.c.orig
+++ linux-2.6.23-mm1/fs/reiser4/export_ops.c
@@ -257,19 +257,28 @@
 {
 	struct inode *dir;
 	dir_plugin *dplug;
+	struct dentry *result;
+	reiser4_context *ctx;
 
 	assert("nikita-3527", child != NULL);
-	/* see comment in reiser4_get_dentry() about following assertion */
-	assert("nikita-3528", is_in_reiser4_context());
 
 	dir = child->d_inode;
 	assert("nikita-3529", dir != NULL);
+
+	ctx = reiser4_init_context(dir->i_sb);
+	if (IS_ERR(ctx))
+		return (void *)ctx;
+
 	dplug = inode_dir_plugin(dir);
 	assert("nikita-3531", ergo(dplug != NULL, dplug->get_parent != NULL));
-	if (dplug != NULL)
-		return dplug->get_parent(dir);
-	else
+
+	if (unlikely(dplug == NULL)) {
+		reiser4_exit_context(ctx);
 		return ERR_PTR(RETERR(-ENOTDIR));
+	}
+	result = dplug->get_parent(dir);
+	reiser4_exit_context(ctx);
+	return result;
 }
 
 /**