8363051739
Reviewed by: hselasky, markj MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D14807
155 lines
3.9 KiB
C
155 lines
3.9 KiB
C
/*-
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* Copyright (c) 2010 Isilon Systems, Inc.
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* Copyright (c) 2010 iX Systems, Inc.
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* Copyright (c) 2010 Panasas, Inc.
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* Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LINUX_KOBJECT_H_
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#define _LINUX_KOBJECT_H_
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#include <machine/stdarg.h>
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#include <linux/kernel.h>
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#include <linux/kref.h>
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#include <linux/list.h>
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#include <linux/slab.h>
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struct kobject;
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struct sysctl_oid;
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struct kobj_type {
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void (*release)(struct kobject *kobj);
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const struct sysfs_ops *sysfs_ops;
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struct attribute **default_attrs;
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};
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extern const struct kobj_type linux_kfree_type;
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struct kobject {
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struct kobject *parent;
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char *name;
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struct kref kref;
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const struct kobj_type *ktype;
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struct list_head entry;
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struct sysctl_oid *oidp;
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};
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extern struct kobject *mm_kobj;
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struct attribute {
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const char *name;
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struct module *owner;
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mode_t mode;
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};
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struct kobj_attribute {
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struct attribute attr;
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ssize_t (*show)(struct kobject *kobj, struct kobj_attribute *attr,
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char *buf);
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ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
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const char *buf, size_t count);
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};
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static inline void
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kobject_init(struct kobject *kobj, const struct kobj_type *ktype)
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{
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kref_init(&kobj->kref);
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INIT_LIST_HEAD(&kobj->entry);
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kobj->ktype = ktype;
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kobj->oidp = NULL;
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}
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void linux_kobject_release(struct kref *kref);
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static inline void
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kobject_put(struct kobject *kobj)
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{
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if (kobj)
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kref_put(&kobj->kref, linux_kobject_release);
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}
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static inline struct kobject *
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kobject_get(struct kobject *kobj)
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{
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if (kobj)
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kref_get(&kobj->kref);
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return kobj;
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}
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int kobject_set_name_vargs(struct kobject *kobj, const char *fmt, va_list);
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int kobject_add(struct kobject *kobj, struct kobject *parent,
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const char *fmt, ...);
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static inline struct kobject *
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kobject_create(void)
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{
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struct kobject *kobj;
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kobj = kzalloc(sizeof(*kobj), GFP_KERNEL);
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if (kobj == NULL)
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return (NULL);
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kobject_init(kobj, &linux_kfree_type);
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return (kobj);
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}
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static inline struct kobject *
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kobject_create_and_add(const char *name, struct kobject *parent)
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{
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struct kobject *kobj;
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kobj = kobject_create();
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if (kobj == NULL)
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return (NULL);
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if (kobject_add(kobj, parent, "%s", name) == 0)
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return (kobj);
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kobject_put(kobj);
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return (NULL);
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}
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static inline void
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kobject_del(struct kobject *kobj __unused)
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{
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}
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static inline char *
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kobject_name(const struct kobject *kobj)
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{
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return kobj->name;
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}
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int kobject_set_name(struct kobject *kobj, const char *fmt, ...);
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int kobject_init_and_add(struct kobject *kobj, const struct kobj_type *ktype,
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struct kobject *parent, const char *fmt, ...);
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#endif /* _LINUX_KOBJECT_H_ */
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