1 /* 2 * kref.c - library routines for handling generic reference counted objects 3 * 4 * Copyright (C) 2004 Greg Kroah-Hartman <[email protected]> 5 * Copyright (C) 2004 IBM Corp. 6 * 7 * based on kobject.h which was: 8 * Copyright (C) 2002-2003 Patrick Mochel <[email protected]> 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 27 void kref_set(struct kref *kref, int num); 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_ */ 34