Use kref implementation from kcompat

[ust.git] / share / kref.c

diff --git a/share/kref.c b/share/kref.c
deleted file mode 100644 (file)
index f036df8..0000000
--- a/share/kref.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * 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 lib/kobject.c which was:
- * Copyright (C) 2002-2003 Patrick Mochel <mochel@osdl.org>
- *
- * This file is released under the GPLv2.
- *
- */
-
-//#include "<kernelcompat.h>"
-#include <kref.h>
-//ust// #include <linux/module.h>
-#include "usterr.h"
-#include "compiler.h"
-
-/**
- * kref_set - initialize object and set refcount to requested number.
- * @kref: object in question.
- * @num: initial reference counter
- */
-void kref_set(struct kref *kref, int num)
-{
-       atomic_set(&kref->refcount, num);
-       smp_mb();
-}
-
-/**
- * kref_init - initialize object.
- * @kref: object in question.
- */
-void kref_init(struct kref *kref)
-{
-       kref_set(kref, 1);
-}
-
-/**
- * kref_get - increment refcount for object.
- * @kref: object.
- */
-void kref_get(struct kref *kref)
-{
-       WARN_ON(!atomic_read(&kref->refcount));
-       atomic_inc(&kref->refcount);
-       smp_mb__after_atomic_inc();
-}
-
-/**
- * kref_put - decrement refcount for object.
- * @kref: object.
- * @release: pointer to the function that will clean up the object when the
- *          last reference to the object is released.
- *          This pointer is required, and it is not acceptable to pass kfree
- *          in as this function.
- *
- * Decrement the refcount, and if 0, call release().
- * Return 1 if the object was removed, otherwise return 0.  Beware, if this
- * function returns 0, you still can not count on the kref from remaining in
- * memory.  Only use the return value if you want to see if the kref is now
- * gone, not present.
- */
-int kref_put(struct kref *kref, void (*release)(struct kref *kref))
-{
-       WARN_ON(release == NULL);
-//ust//        WARN_ON(release == (void (*)(struct kref *))kfree);
-
-       if (atomic_dec_and_test(&kref->refcount)) {
-               release(kref);
-               return 1;
-       }
-       return 0;
-}
-
-//ust// EXPORT_SYMBOL(kref_set);
-//ust// EXPORT_SYMBOL(kref_init);
-//ust// EXPORT_SYMBOL(kref_get);
-//ust// EXPORT_SYMBOL(kref_put);