1 files changed, 66 insertions, 0 deletions
diff --git a/xlators/meta/src/plugins/subvolume-link.c b/xlators/meta/src/plugins/subvolume-link.c
new file mode 100644
index 00000000000..ca71a751541
--- /dev/null
+++ b/xlators/meta/src/plugins/subvolume-link.c
@@ -0,0 +1,66 @@
+/*
+   Copyright (c) 2014 Red Hat, Inc. <http://www.redhat.com>
+   This file is part of GlusterFS.
+
+   This file is licensed to you under your choice of the GNU Lesser
+   General Public License, version 3 or any later version (LGPLv3 or
+   later), or the GNU General Public License, version 2 (GPLv2), in all
+   cases as published by the Free Software Foundation.
+*/
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "xlator.h"
+#include "defaults.h"
+
+#include "meta-mem-types.h"
+#include "meta.h"
+
+
+static int
+subvolume_link_fill (xlator_t *this, inode_t *inode, strfd_t *strfd)
+{
+	xlator_t *xl = NULL;
+
+	xl = meta_ctx_get (inode, this);
+
+	strprintf (strfd, "../../%s", xl->name);
+
+	return 0;
+}
+
+
+struct meta_ops subvolume_link_ops = {
+	.link_fill = subvolume_link_fill
+};
+
+
+int
+meta_subvolume_link_hook (call_frame_t *frame, xlator_t *this, loc_t *loc,
+			  dict_t *xdata)
+{
+	int count = 0;
+	int i = 0;
+	xlator_t *xl = NULL;
+	xlator_list_t *subv = NULL;
+	xlator_t *subvol = NULL;
+
+	count = strtol (loc->name, 0, 0);
+	xl = meta_ctx_get (loc->parent, this);
+
+	for (subv = xl->children; subv; subv = subv->next) {
+		if (i == count) {
+			subvol = subv->xlator;
+			break;
+		}
+		i++;
+	}
+
+	meta_ctx_set (loc->inode, this, subvol);
+
+	meta_ops_set (loc->inode, this, &subvolume_link_ops);
+	return 0;
+}