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-rw-r--r--module/zfs/include/sys/refcount.h107
1 files changed, 0 insertions, 107 deletions
diff --git a/module/zfs/include/sys/refcount.h b/module/zfs/include/sys/refcount.h
deleted file mode 100644
index 1752c64e3..000000000
--- a/module/zfs/include/sys/refcount.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- */
-
-#ifndef _SYS_REFCOUNT_H
-#define _SYS_REFCOUNT_H
-
-#include <sys/inttypes.h>
-#include <sys/list.h>
-#include <sys/zfs_context.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * If the reference is held only by the calling function and not any
- * particular object, use FTAG (which is a string) for the holder_tag.
- * Otherwise, use the object that holds the reference.
- */
-#define FTAG ((char *)__func__)
-
-#ifdef ZFS_DEBUG
-typedef struct reference {
- list_node_t ref_link;
- void *ref_holder;
- uint64_t ref_number;
- uint8_t *ref_removed;
-} reference_t;
-
-typedef struct refcount {
- kmutex_t rc_mtx;
- list_t rc_list;
- list_t rc_removed;
- int64_t rc_count;
- int64_t rc_removed_count;
-} refcount_t;
-
-/* Note: refcount_t must be initialized with refcount_create() */
-
-void refcount_create(refcount_t *rc);
-void refcount_destroy(refcount_t *rc);
-void refcount_destroy_many(refcount_t *rc, uint64_t number);
-int refcount_is_zero(refcount_t *rc);
-int64_t refcount_count(refcount_t *rc);
-int64_t refcount_add(refcount_t *rc, void *holder_tag);
-int64_t refcount_remove(refcount_t *rc, void *holder_tag);
-int64_t refcount_add_many(refcount_t *rc, uint64_t number, void *holder_tag);
-int64_t refcount_remove_many(refcount_t *rc, uint64_t number, void *holder_tag);
-void refcount_transfer(refcount_t *dst, refcount_t *src);
-
-void refcount_init(void);
-void refcount_fini(void);
-
-#else /* ZFS_DEBUG */
-
-typedef struct refcount {
- uint64_t rc_count;
-} refcount_t;
-
-#define refcount_create(rc) ((rc)->rc_count = 0)
-#define refcount_destroy(rc) ((rc)->rc_count = 0)
-#define refcount_destroy_many(rc, number) ((rc)->rc_count = 0)
-#define refcount_is_zero(rc) ((rc)->rc_count == 0)
-#define refcount_count(rc) ((rc)->rc_count)
-#define refcount_add(rc, holder) atomic_add_64_nv(&(rc)->rc_count, 1)
-#define refcount_remove(rc, holder) atomic_add_64_nv(&(rc)->rc_count, -1)
-#define refcount_add_many(rc, number, holder) \
- atomic_add_64_nv(&(rc)->rc_count, number)
-#define refcount_remove_many(rc, number, holder) \
- atomic_add_64_nv(&(rc)->rc_count, -number)
-#define refcount_transfer(dst, src) { \
- uint64_t __tmp = (src)->rc_count; \
- atomic_add_64(&(src)->rc_count, -__tmp); \
- atomic_add_64(&(dst)->rc_count, __tmp); \
-}
-
-#define refcount_init()
-#define refcount_fini()
-
-#endif /* ZFS_DEBUG */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _SYS_REFCOUNT_H */