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Deduplicated send streams (i.e. `zfs send -D` and `zfs receive` of such streams) are deprecated. Deduplicated send streams can be received by first converting them to non-deduplicated with the `zstream redup` command. This commit removes the code for sending and receiving deduplicated send streams. `zfs send -D` will now print a warning, ignore the `-D` flag, and generate a regular (non-deduplicated) send stream. `zfs receive` of a deduplicated send stream will print an error message and fail. The resulting code simplification (especially in the kernel's support for receiving dedup streams) should help enable future performance enhancements. Several new tests are added which leverage `zstream redup`. Reviewed-by: Paul Dagnelie <pcd@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Matthew Ahrens <mahrens@delphix.com> Issue #7887 Issue #10117 Issue #10156 Closes #10212
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2020 by Delphix. All rights reserved.
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*/
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#ifndef _SYS_ZFS_ONEXIT_H
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#define _SYS_ZFS_ONEXIT_H
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#include <sys/zfs_context.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef _KERNEL
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typedef struct zfs_onexit {
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kmutex_t zo_lock;
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list_t zo_actions;
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} zfs_onexit_t;
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typedef struct zfs_onexit_action_node {
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list_node_t za_link;
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void (*za_func)(void *);
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void *za_data;
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} zfs_onexit_action_node_t;
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extern void zfs_onexit_init(zfs_onexit_t **zo);
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extern void zfs_onexit_destroy(zfs_onexit_t *zo);
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#endif
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extern int zfs_onexit_fd_hold(int fd, minor_t *minorp);
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extern void zfs_onexit_fd_rele(int fd);
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extern int zfs_onexit_add_cb(minor_t minor, void (*func)(void *), void *data,
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uint64_t *action_handle);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_ZFS_ONEXIT_H */
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