1 // SPDX-License-Identifier: CDDL-1.0 2 /* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License (the "License"). 7 * You may not use this file except in compliance with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or https://opensource.org/licenses/CDDL-1.0. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2018, 2019 by Delphix. All rights reserved. 25 */ 26 27 #ifndef _SYS_DSL_DEADLIST_H 28 #define _SYS_DSL_DEADLIST_H 29 30 #include <sys/bpobj.h> 31 #include <sys/zfs_context.h> 32 #include <sys/zthr.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 struct dmu_buf; 39 struct dsl_pool; 40 struct dsl_dataset; 41 42 typedef struct dsl_deadlist_phys { 43 uint64_t dl_used; 44 uint64_t dl_comp; 45 uint64_t dl_uncomp; 46 uint64_t dl_pad[37]; /* pad out to 320b for future expansion */ 47 } dsl_deadlist_phys_t; 48 49 typedef struct dsl_deadlist { 50 objset_t *dl_os; 51 uint64_t dl_object; 52 avl_tree_t dl_tree; /* contains dsl_deadlist_entry_t */ 53 avl_tree_t dl_cache; /* contains dsl_deadlist_cache_entry_t */ 54 boolean_t dl_havetree; 55 boolean_t dl_havecache; 56 struct dmu_buf *dl_dbuf; 57 dsl_deadlist_phys_t *dl_phys; 58 kmutex_t dl_lock; 59 60 /* if it's the old on-disk format: */ 61 bpobj_t dl_bpobj; 62 boolean_t dl_oldfmt; 63 } dsl_deadlist_t; 64 65 typedef struct dsl_deadlist_cache_entry { 66 avl_node_t dlce_node; 67 uint64_t dlce_mintxg; 68 uint64_t dlce_bpobj; 69 uint64_t dlce_bytes; 70 uint64_t dlce_comp; 71 uint64_t dlce_uncomp; 72 } dsl_deadlist_cache_entry_t; 73 74 typedef struct dsl_deadlist_entry { 75 avl_node_t dle_node; 76 uint64_t dle_mintxg; 77 bpobj_t dle_bpobj; 78 } dsl_deadlist_entry_t; 79 80 typedef struct livelist_condense_entry { 81 struct dsl_dataset *ds; 82 dsl_deadlist_entry_t *first; 83 dsl_deadlist_entry_t *next; 84 boolean_t syncing; 85 boolean_t cancelled; 86 } livelist_condense_entry_t; 87 88 extern uint64_t zfs_livelist_max_entries; 89 extern int zfs_livelist_min_percent_shared; 90 91 typedef int deadlist_iter_t(void *args, dsl_deadlist_entry_t *dle); 92 93 int dsl_deadlist_open(dsl_deadlist_t *dl, objset_t *os, uint64_t object); 94 void dsl_deadlist_close(dsl_deadlist_t *dl); 95 void dsl_deadlist_iterate(dsl_deadlist_t *dl, deadlist_iter_t func, void *arg); 96 uint64_t dsl_deadlist_alloc(objset_t *os, dmu_tx_t *tx); 97 void dsl_deadlist_free(objset_t *os, uint64_t dlobj, dmu_tx_t *tx); 98 void dsl_deadlist_insert(dsl_deadlist_t *dl, const blkptr_t *bp, 99 boolean_t free, dmu_tx_t *tx); 100 int dsl_deadlist_insert_alloc_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx); 101 int dsl_deadlist_insert_free_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx); 102 void dsl_deadlist_add_key(dsl_deadlist_t *dl, uint64_t mintxg, dmu_tx_t *tx); 103 void dsl_deadlist_remove_key(dsl_deadlist_t *dl, uint64_t mintxg, dmu_tx_t *tx); 104 void dsl_deadlist_remove_entry(dsl_deadlist_t *dl, uint64_t mintxg, 105 dmu_tx_t *tx); 106 dsl_deadlist_entry_t *dsl_deadlist_first(dsl_deadlist_t *dl); 107 dsl_deadlist_entry_t *dsl_deadlist_last(dsl_deadlist_t *dl); 108 uint64_t dsl_deadlist_clone(dsl_deadlist_t *dl, uint64_t maxtxg, 109 uint64_t mrs_obj, dmu_tx_t *tx); 110 void dsl_deadlist_space(dsl_deadlist_t *dl, 111 uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); 112 void dsl_deadlist_space_range(dsl_deadlist_t *dl, 113 uint64_t mintxg, uint64_t maxtxg, 114 uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); 115 void dsl_deadlist_merge(dsl_deadlist_t *dl, uint64_t obj, dmu_tx_t *tx); 116 void dsl_deadlist_move_bpobj(dsl_deadlist_t *dl, bpobj_t *bpo, uint64_t mintxg, 117 dmu_tx_t *tx); 118 boolean_t dsl_deadlist_is_open(dsl_deadlist_t *dl); 119 int dsl_process_sub_livelist(bpobj_t *bpobj, struct bplist *to_free, 120 zthr_t *t, uint64_t *size); 121 void dsl_deadlist_clear_entry(dsl_deadlist_entry_t *dle, dsl_deadlist_t *dl, 122 dmu_tx_t *tx); 123 void dsl_deadlist_discard_tree(dsl_deadlist_t *dl); 124 125 #ifdef __cplusplus 126 } 127 #endif 128 129 #endif /* _SYS_DSL_DEADLIST_H */ 130