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3740 Poor ZFS send / receive performance due to snapshot hold / release processing
Submitted by: Steven Hartland <steven.hartland@multiplay.co.uk>
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--- old/usr/src/uts/common/fs/zfs/sys/dsl_userhold.h
+++ new/usr/src/uts/common/fs/zfs/sys/dsl_userhold.h
1 1
2 2 /*
3 3 * CDDL HEADER START
4 4 *
5 5 * The contents of this file are subject to the terms of the
6 6 * Common Development and Distribution License (the "License").
7 7 * You may not use this file except in compliance with the License.
8 8 *
9 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 10 * or http://www.opensolaris.org/os/licensing.
11 11 * See the License for the specific language governing permissions
12 12 * and limitations under the License.
13 13 *
14 14 * When distributing Covered Code, include this CDDL HEADER in each
15 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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16 16 * If applicable, add the following below this CDDL HEADER, with the
17 17 * fields enclosed by brackets "[]" replaced with your own identifying
18 18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 19 *
20 20 * CDDL HEADER END
21 21 */
22 22 /*
23 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 24 * Copyright (c) 2012 by Delphix. All rights reserved.
25 25 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
26 + * Copyright (c) 2013 Steven Hartland. All rights reserved.
26 27 */
27 28
28 29 #ifndef _SYS_DSL_USERHOLD_H
29 30 #define _SYS_DSL_USERHOLD_H
30 31
31 32 #include <sys/nvpair.h>
32 33 #include <sys/types.h>
33 34
34 35 #ifdef __cplusplus
35 36 extern "C" {
36 37 #endif
37 38
38 39 struct dsl_pool;
39 40 struct dsl_dataset;
40 41 struct dmu_tx;
41 42
42 43 int dsl_dataset_user_hold(nvlist_t *holds, minor_t cleanup_minor,
43 44 nvlist_t *errlist);
44 45 int dsl_dataset_user_release(nvlist_t *holds, nvlist_t *errlist);
45 46 int dsl_dataset_get_holds(const char *dsname, nvlist_t *nvl);
46 -void dsl_dataset_user_release_tmp(struct dsl_pool *dp, uint64_t dsobj,
47 - const char *htag);
47 +void dsl_dataset_user_release_tmp(struct dsl_pool *dp, nvlist_t *holds);
48 48 int dsl_dataset_user_hold_check_one(struct dsl_dataset *ds, const char *htag,
49 49 boolean_t temphold, struct dmu_tx *tx);
50 50 void dsl_dataset_user_hold_sync_one(struct dsl_dataset *ds, const char *htag,
51 51 minor_t minor, uint64_t now, struct dmu_tx *tx);
52 52
53 53 #ifdef __cplusplus
54 54 }
55 55 #endif
56 56
57 57 #endif /* _SYS_DSL_USERHOLD_H */
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