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4101 metaslab_debug should allow for fine-grained control
4102 space_maps should store more information about themselves
4103 space map object blocksize should be increased
4104 ::spa_space no longer works
4105 removing a mirrored log device results in a leaked object
4106 asynchronously load metaslab
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Sebastien Roy <seb@delphix.com>
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--- old/usr/src/uts/common/fs/zfs/sys/metaslab.h
+++ new/usr/src/uts/common/fs/zfs/sys/metaslab.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
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13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 - * Copyright (c) 2012 by Delphix. All rights reserved.
23 + * Copyright (c) 2013 by Delphix. All rights reserved.
24 24 */
25 25
26 26 #ifndef _SYS_METASLAB_H
27 27 #define _SYS_METASLAB_H
28 28
29 29 #include <sys/spa.h>
30 30 #include <sys/space_map.h>
31 31 #include <sys/txg.h>
32 32 #include <sys/zio.h>
33 33 #include <sys/avl.h>
34 34
35 35 #ifdef __cplusplus
36 36 extern "C" {
37 37 #endif
38 38
39 -extern space_map_ops_t *zfs_metaslab_ops;
39 +typedef struct metaslab_ops {
40 + uint64_t (*msop_alloc)(metaslab_t *msp, uint64_t size);
41 + boolean_t (*msop_fragmented)(metaslab_t *msp);
42 +} metaslab_ops_t;
40 43
41 -extern metaslab_t *metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo,
42 - uint64_t start, uint64_t size, uint64_t txg);
43 -extern void metaslab_fini(metaslab_t *msp);
44 -extern void metaslab_sync(metaslab_t *msp, uint64_t txg);
45 -extern void metaslab_sync_done(metaslab_t *msp, uint64_t txg);
46 -extern void metaslab_sync_reassess(metaslab_group_t *mg);
44 +extern metaslab_ops_t *zfs_metaslab_ops;
47 45
46 +metaslab_t *metaslab_init(metaslab_group_t *mg, uint64_t id,
47 + uint64_t object, uint64_t txg);
48 +void metaslab_fini(metaslab_t *msp);
49 +
50 +void metaslab_load_wait(metaslab_t *msp);
51 +int metaslab_load(metaslab_t *msp);
52 +void metaslab_unload(metaslab_t *msp);
53 +
54 +void metaslab_sync(metaslab_t *msp, uint64_t txg);
55 +void metaslab_sync_done(metaslab_t *msp, uint64_t txg);
56 +void metaslab_sync_reassess(metaslab_group_t *mg);
57 +uint64_t metaslab_block_maxsize(metaslab_t *msp);
58 +
48 59 #define METASLAB_HINTBP_FAVOR 0x0
49 60 #define METASLAB_HINTBP_AVOID 0x1
50 61 #define METASLAB_GANG_HEADER 0x2
51 62 #define METASLAB_GANG_CHILD 0x4
52 63 #define METASLAB_GANG_AVOID 0x8
53 64
54 -extern int metaslab_alloc(spa_t *spa, metaslab_class_t *mc, uint64_t psize,
65 +int metaslab_alloc(spa_t *spa, metaslab_class_t *mc, uint64_t psize,
55 66 blkptr_t *bp, int ncopies, uint64_t txg, blkptr_t *hintbp, int flags);
56 -extern void metaslab_free(spa_t *spa, const blkptr_t *bp, uint64_t txg,
57 - boolean_t now);
58 -extern int metaslab_claim(spa_t *spa, const blkptr_t *bp, uint64_t txg);
59 -extern void metaslab_check_free(spa_t *spa, const blkptr_t *bp);
67 +void metaslab_free(spa_t *spa, const blkptr_t *bp, uint64_t txg, boolean_t now);
68 +int metaslab_claim(spa_t *spa, const blkptr_t *bp, uint64_t txg);
69 +void metaslab_check_free(spa_t *spa, const blkptr_t *bp);
60 70
61 -extern metaslab_class_t *metaslab_class_create(spa_t *spa,
62 - space_map_ops_t *ops);
63 -extern void metaslab_class_destroy(metaslab_class_t *mc);
64 -extern int metaslab_class_validate(metaslab_class_t *mc);
71 +metaslab_class_t *metaslab_class_create(spa_t *spa, metaslab_ops_t *ops);
72 +void metaslab_class_destroy(metaslab_class_t *mc);
73 +int metaslab_class_validate(metaslab_class_t *mc);
65 74
66 -extern void metaslab_class_space_update(metaslab_class_t *mc,
75 +void metaslab_class_space_update(metaslab_class_t *mc,
67 76 int64_t alloc_delta, int64_t defer_delta,
68 77 int64_t space_delta, int64_t dspace_delta);
69 -extern uint64_t metaslab_class_get_alloc(metaslab_class_t *mc);
70 -extern uint64_t metaslab_class_get_space(metaslab_class_t *mc);
71 -extern uint64_t metaslab_class_get_dspace(metaslab_class_t *mc);
72 -extern uint64_t metaslab_class_get_deferred(metaslab_class_t *mc);
78 +uint64_t metaslab_class_get_alloc(metaslab_class_t *mc);
79 +uint64_t metaslab_class_get_space(metaslab_class_t *mc);
80 +uint64_t metaslab_class_get_dspace(metaslab_class_t *mc);
81 +uint64_t metaslab_class_get_deferred(metaslab_class_t *mc);
73 82
74 -extern metaslab_group_t *metaslab_group_create(metaslab_class_t *mc,
75 - vdev_t *vd);
76 -extern void metaslab_group_destroy(metaslab_group_t *mg);
77 -extern void metaslab_group_activate(metaslab_group_t *mg);
78 -extern void metaslab_group_passivate(metaslab_group_t *mg);
83 +metaslab_group_t *metaslab_group_create(metaslab_class_t *mc, vdev_t *vd);
84 +void metaslab_group_destroy(metaslab_group_t *mg);
85 +void metaslab_group_activate(metaslab_group_t *mg);
86 +void metaslab_group_passivate(metaslab_group_t *mg);
79 87
80 88 #ifdef __cplusplus
81 89 }
82 90 #endif
83 91
84 92 #endif /* _SYS_METASLAB_H */
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