1// SPDX-License-Identifier: GPL-2.0-only
 2/* -*- mode: c; c-basic-offset: 8; -*-
 3 * vim: noexpandtab sw=8 ts=8 sts=0:
 4 *
 5 * sys.c
 6 *
 7 * OCFS2 cluster sysfs interface
 8 *
 9 * Copyright (C) 2005 Oracle.  All rights reserved.
10 */
11
12#include <linux/kernel.h>
13#include <linux/module.h>
14#include <linux/kobject.h>
15#include <linux/sysfs.h>
16#include <linux/fs.h>
17
18#include "ocfs2_nodemanager.h"
19#include "masklog.h"
20#include "sys.h"
21
22
23static ssize_t version_show(struct kobject *kobj, struct kobj_attribute *attr,
24			    char *buf)
25{
26	return snprintf(buf, PAGE_SIZE, "%u\n", O2NM_API_VERSION);
27}
28static struct kobj_attribute attr_version =
29	__ATTR(interface_revision, S_IRUGO, version_show, NULL);
30
31static struct attribute *o2cb_attrs[] = {
32	&attr_version.attr,
33	NULL,
34};
35
36static struct attribute_group o2cb_attr_group = {
37	.attrs = o2cb_attrs,
38};
39
40static struct kset *o2cb_kset;
41
42void o2cb_sys_shutdown(void)
43{
44	mlog_sys_shutdown();
45	kset_unregister(o2cb_kset);
46}
47
48int o2cb_sys_init(void)
49{
50	int ret;
51
52	o2cb_kset = kset_create_and_add("o2cb", NULL, fs_kobj);
53	if (!o2cb_kset)
54		return -ENOMEM;
55
56	ret = sysfs_create_group(&o2cb_kset->kobj, &o2cb_attr_group);
57	if (ret)
58		goto error;
59
60	ret = mlog_sys_init(o2cb_kset);
61	if (ret)
62		goto error;
63	return 0;
64error:
65	kset_unregister(o2cb_kset);
66	return ret;
67}

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 
 
 3 * sys.c
 4 *
 5 * OCFS2 cluster sysfs interface
 6 *
 7 * Copyright (C) 2005 Oracle.  All rights reserved.
 8 */
 9
10#include <linux/kernel.h>
11#include <linux/module.h>
12#include <linux/kobject.h>
13#include <linux/sysfs.h>
14#include <linux/fs.h>
15
16#include "ocfs2_nodemanager.h"
17#include "masklog.h"
18#include "sys.h"
19
20
21static ssize_t version_show(struct kobject *kobj, struct kobj_attribute *attr,
22			    char *buf)
23{
24	return snprintf(buf, PAGE_SIZE, "%u\n", O2NM_API_VERSION);
25}
26static struct kobj_attribute attr_version =
27	__ATTR(interface_revision, S_IRUGO, version_show, NULL);
28
29static struct attribute *o2cb_attrs[] = {
30	&attr_version.attr,
31	NULL,
32};
33
34static struct attribute_group o2cb_attr_group = {
35	.attrs = o2cb_attrs,
36};
37
38static struct kset *o2cb_kset;
39
40void o2cb_sys_shutdown(void)
41{
42	mlog_sys_shutdown();
43	kset_unregister(o2cb_kset);
44}
45
46int o2cb_sys_init(void)
47{
48	int ret;
49
50	o2cb_kset = kset_create_and_add("o2cb", NULL, fs_kobj);
51	if (!o2cb_kset)
52		return -ENOMEM;
53
54	ret = sysfs_create_group(&o2cb_kset->kobj, &o2cb_attr_group);
55	if (ret)
56		goto error;
57
58	ret = mlog_sys_init(o2cb_kset);
59	if (ret)
60		goto error;
61	return 0;
62error:
63	kset_unregister(o2cb_kset);
64	return ret;
65}