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-rw-r--r--include/linux/kref.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/kref.h b/include/linux/kref.h
new file mode 100644
index 000000000000..6fee3539893f
--- /dev/null
+++ b/include/linux/kref.h
@@ -0,0 +1,32 @@
+/*
+ * 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_ */