Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / ocfs2 / cluster / sys.c

diff --git a/kernel/fs/ocfs2/cluster/sys.c b/kernel/fs/ocfs2/cluster/sys.c
new file mode 100644 (file)
index 0000000..b7f5727
--- /dev/null
+++ b/kernel/fs/ocfs2/cluster/sys.c
@@ -0,0 +1,82 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * sys.c
+ *
+ * OCFS2 cluster sysfs interface
+ *
+ * Copyright (C) 2005 Oracle.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation,
+ * version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/kobject.h>
+#include <linux/sysfs.h>
+#include <linux/fs.h>
+
+#include "ocfs2_nodemanager.h"
+#include "masklog.h"
+#include "sys.h"
+
+
+static ssize_t version_show(struct kobject *kobj, struct kobj_attribute *attr,
+                           char *buf)
+{
+       return snprintf(buf, PAGE_SIZE, "%u\n", O2NM_API_VERSION);
+}
+static struct kobj_attribute attr_version =
+       __ATTR(interface_revision, S_IRUGO, version_show, NULL);
+
+static struct attribute *o2cb_attrs[] = {
+       &attr_version.attr,
+       NULL,
+};
+
+static struct attribute_group o2cb_attr_group = {
+       .attrs = o2cb_attrs,
+};
+
+static struct kset *o2cb_kset;
+
+void o2cb_sys_shutdown(void)
+{
+       mlog_sys_shutdown();
+       kset_unregister(o2cb_kset);
+}
+
+int o2cb_sys_init(void)
+{
+       int ret;
+
+       o2cb_kset = kset_create_and_add("o2cb", NULL, fs_kobj);
+       if (!o2cb_kset)
+               return -ENOMEM;
+
+       ret = sysfs_create_group(&o2cb_kset->kobj, &o2cb_attr_group);
+       if (ret)
+               goto error;
+
+       ret = mlog_sys_init(o2cb_kset);
+       if (ret)
+               goto error;
+       return 0;
+error:
+       kset_unregister(o2cb_kset);
+       return ret;
+}