| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * kref.c - 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 | #ifdef __KERNEL__ |
| 19 | |
| 20 | #include <linux/types.h> |
| 21 | #include <asm/atomic.h> |
| 22 | |
| 23 | struct kref { |
| 24 | atomic_t refcount; |
| 25 | }; |
| 26 | |
| Evgeniy Polyakov | 41ca28a | 2007-12-10 23:03:43 +0300 | [diff] [blame] | 27 | void kref_set(struct kref *kref, int num); |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | void kref_init(struct kref *kref); |
| 29 | void kref_get(struct kref *kref); |
| 30 | int kref_put(struct kref *kref, void (*release) (struct kref *kref)); |
| 31 | |
| 32 | #endif /* __KERNEL__ */ |
| 33 | #endif /* _KREF_H_ */ |