forked from rrcarlosr/Jetpack
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
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* sysfs for cifs
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*
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* Copyright (c) 2018, NVIDIA Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/kobject.h>
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#include <linux/slab.h>
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#include "cifsglob.h"
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#include "sysfs.h"
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static struct kset *cifs_sysfs_kset;
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static struct kobject *cifs_sysfs_kobj;
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static struct kobj_type cifs_uevent_ktype = {
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};
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void cifs_sysfs_notify_change(const char* source, cifs_event_type event_type) {
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char env_source[30];
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char env_state[30];
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char *envp[3] = { env_source, env_state, NULL };
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sprintf(env_source, "SOURCE=%s", source);
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sprintf(env_state, "STATE=%d", event_type);
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kobject_uevent_env(cifs_sysfs_kobj, KOBJ_CHANGE, envp);
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}
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int cifs_sysfs_init(void) {
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int ret;
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cifs_sysfs_kset = kset_create_and_add("cifs", NULL, fs_kobj);
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if (!cifs_sysfs_kset) {
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return -ENOMEM;
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}
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cifs_sysfs_kobj = kzalloc(sizeof(*cifs_sysfs_kobj),
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GFP_KERNEL);
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if (!cifs_sysfs_kobj) {
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return -ENOMEM;
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}
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cifs_sysfs_kobj->kset = cifs_sysfs_kset;
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ret = kobject_init_and_add(cifs_sysfs_kobj, &cifs_uevent_ktype, NULL, "uevent");
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if (!ret) {
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kobject_uevent(cifs_sysfs_kobj, KOBJ_ADD);
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} else {
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kfree(cifs_sysfs_kobj);
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}
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return ret;
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}
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void cifs_sysfs_exit(void) {
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kobject_uevent(cifs_sysfs_kobj, KOBJ_REMOVE);
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kobject_put(cifs_sysfs_kobj);
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kset_unregister(cifs_sysfs_kset);
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}
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