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1 | /* |
2 | * kref.h - library routines for handling generic reference counted objects |
3 | * |
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 | |
18 | #include <linux/types.h> |
19 | |
20 | struct kref { |
21 | atomic_t refcount; |
22 | }; |
23 | |
24 | void kref_init(struct kref *kref); |
25 | void kref_get(struct kref *kref); |
26 | int kref_put(struct kref *kref, void (*release) (struct kref *kref)); |
27 | int kref_sub(struct kref *kref, unsigned int count, |
28 | void (*release) (struct kref *kref)); |
29 | |
30 | #endif /* _KREF_H_ */ |
31 |
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