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