kref.h
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上传日期:2009-04-28
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- /*
- * kref.c - library routines for handling generic reference counted objects
- *
- * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
- * Copyright (C) 2004 IBM Corp.
- *
- * based on kobject.h which was:
- * Copyright (C) 2002-2003 Patrick Mochel <mochel@osdl.org>
- * Copyright (C) 2002-2003 Open Source Development Labs
- *
- * This file is released under the GPLv2.
- *
- */
- #ifndef _KREF_H_
- #define _KREF_H_
- #ifdef __KERNEL__
- #include <linux/types.h>
- #include <asm/atomic.h>
- struct kref {
- atomic_t refcount;
- };
- void kref_init(struct kref *kref);
- void kref_get(struct kref *kref);
- int kref_put(struct kref *kref, void (*release) (struct kref *kref));
- #endif /* __KERNEL__ */
- #endif /* _KREF_H_ */