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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/include/linux/kref.h
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * kref.h - library routines for handling generic reference counted objects
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  *
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  * based on kobject.h which was:
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  * Copyright (C) 2002-2003 Patrick Mochel <mochel@osdl.org>
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  * Copyright (C) 2002-2003 Open Source Development Labs
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- *
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- * This file is released under the GPLv2.
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- *
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  */
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 #ifndef _KREF_H_
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  * @release: pointer to the function that will clean up the object when the
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  *	     last reference to the object is released.
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  *	     This pointer is required, and it is not acceptable to pass kfree
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- *	     in as this function.  If the caller does pass kfree to this
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- *	     function, you will be publicly mocked mercilessly by the kref
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- *	     maintainer, and anyone else who happens to notice it.  You have
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- *	     been warned.
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+ *	     in as this function.
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  *
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  * Decrement the refcount, and if 0, call release().
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  * Return 1 if the object was removed, otherwise return 0.  Beware, if this