1 files changed, 79 insertions, 0 deletions
diff --git a/xlators/meta/src/volfile-file.c b/xlators/meta/src/volfile-file.c
new file mode 100644
index 00000000000..b2e2562ab8b
--- /dev/null
+++ b/xlators/meta/src/volfile-file.c
@@ -0,0 +1,79 @@
+/*
+   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.
+*/
+
+#include <glusterfs/xlator.h>
+#include <glusterfs/defaults.h>
+
+#include "meta-mem-types.h"
+#include "meta.h"
+#include <glusterfs/strfd.h>
+
+static int
+xldump_options(dict_t *this, char *key, data_t *value, void *strfd)
+{
+    strprintf(strfd, "    option %s %s\n", key, value->data);
+    return 0;
+}
+
+static void
+xldump_subvolumes(xlator_t *this, void *strfd)
+{
+    xlator_list_t *subv = NULL;
+
+    if (!this->children)
+        return;
+
+    strprintf(strfd, "    subvolumes");
+
+    for (subv = this->children; subv; subv = subv->next)
+        strprintf(strfd, " %s", subv->xlator->name);
+
+    strprintf(strfd, "\n");
+}
+
+static void
+xldump(xlator_t *each, void *strfd)
+{
+    strprintf(strfd, "volume %s\n", each->name);
+    strprintf(strfd, "    type %s\n", each->type);
+    dict_foreach(each->options, xldump_options, strfd);
+
+    xldump_subvolumes(each, strfd);
+
+    strprintf(strfd, "end-volume\n");
+    strprintf(strfd, "\n");
+}
+
+static int
+volfile_file_fill(xlator_t *this, inode_t *file, strfd_t *strfd)
+{
+    glusterfs_graph_t *graph = NULL;
+
+    graph = meta_ctx_get(file, this);
+
+    xlator_foreach_depth_first(graph->top, xldump, strfd);
+
+    return strfd->size;
+}
+
+static struct meta_ops volfile_file_ops = {
+    .file_fill = volfile_file_fill,
+};
+
+int
+meta_volfile_file_hook(call_frame_t *frame, xlator_t *this, loc_t *loc,
+                       dict_t *xdata)
+{
+    meta_ops_set(loc->inode, this, &volfile_file_ops);
+
+    meta_ctx_set(loc->inode, this, meta_ctx_get(loc->parent, this));
+
+    return 0;
+}