blob: 6cc38fc07ab76c5a052d530eec2fd31ec4d25392 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Robert P. J. Day932fb062010-03-13 07:58:13 -05002 * kref.h - library routines for handling generic reference counted objects
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 *
4 * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
5 * Copyright (C) 2004 IBM Corp.
6 *
7 * based on kobject.h which was:
8 * Copyright (C) 2002-2003 Patrick Mochel <mochel@osdl.org>
9 * Copyright (C) 2002-2003 Open Source Development Labs
10 *
11 * This file is released under the GPLv2.
12 *
13 */
14
15#ifndef _KREF_H_
16#define _KREF_H_
17
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <linux/types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070019
20struct kref {
21 atomic_t refcount;
22};
23
Linus Torvalds1da177e2005-04-16 15:20:36 -070024void kref_init(struct kref *kref);
25void kref_get(struct kref *kref);
26int kref_put(struct kref *kref, void (*release) (struct kref *kref));
27
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#endif /* _KREF_H_ */