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TOMOYO Linux Cross Reference
Linux/include/linux/kref.h

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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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