79
80
81 typedef struct dsl_pool {
82 /* Immutable */
83 spa_t *dp_spa;
84 struct objset *dp_meta_objset;
85 struct dsl_dir *dp_root_dir;
86 struct dsl_dir *dp_mos_dir;
87 struct dsl_dir *dp_free_dir;
88 struct dsl_dir *dp_leak_dir;
89 struct dsl_dataset *dp_origin_snap;
90 uint64_t dp_root_dir_obj;
91 struct taskq *dp_vnrele_taskq;
92
93 /* No lock needed - sync context only */
94 blkptr_t dp_meta_rootbp;
95 uint64_t dp_tmp_userrefs_obj;
96 bpobj_t dp_free_bpobj;
97 uint64_t dp_bptree_obj;
98 uint64_t dp_empty_bpobj;
99 bpobj_t dp_obsolete_bpobj;
100
101 struct dsl_scan *dp_scan;
102
103 /* Uses dp_lock */
104 kmutex_t dp_lock;
105 kcondvar_t dp_spaceavail_cv;
106 uint64_t dp_dirty_pertxg[TXG_SIZE];
107 uint64_t dp_dirty_total;
108 uint64_t dp_long_free_dirty_pertxg[TXG_SIZE];
109 uint64_t dp_mos_used_delta;
110 uint64_t dp_mos_compressed_delta;
111 uint64_t dp_mos_uncompressed_delta;
112
113 /*
114 * Time of most recently scheduled (furthest in the future)
115 * wakeup for delayed transactions.
116 */
117 hrtime_t dp_last_wakeup;
118
119 /* Has its own locking */
120 tx_state_t dp_tx;
121 txg_list_t dp_dirty_datasets;
122 txg_list_t dp_dirty_zilogs;
123 txg_list_t dp_dirty_dirs;
124 txg_list_t dp_sync_tasks;
125 taskq_t *dp_sync_taskq;
126 taskq_t *dp_zil_clean_taskq;
127
128 /*
129 * Protects administrative changes (properties, namespace)
130 *
131 * It is only held for write in syncing context. Therefore
132 * syncing context does not need to ever have it for read, since
133 * nobody else could possibly have it for write.
134 */
135 rrwlock_t dp_config_rwlock;
136
137 zfs_all_blkstats_t *dp_blkstats;
138 } dsl_pool_t;
139
140 int dsl_pool_init(spa_t *spa, uint64_t txg, dsl_pool_t **dpp);
141 int dsl_pool_open(dsl_pool_t *dp);
142 void dsl_pool_close(dsl_pool_t *dp);
143 dsl_pool_t *dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg);
144 void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg);
145 void dsl_pool_sync_done(dsl_pool_t *dp, uint64_t txg);
146 int dsl_pool_sync_context(dsl_pool_t *dp);
147 uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree);
148 void dsl_pool_dirty_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
149 void dsl_pool_undirty_space(dsl_pool_t *dp, int64_t space, uint64_t txg);
150 void dsl_free(dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp);
151 void dsl_free_sync(zio_t *pio, dsl_pool_t *dp, uint64_t txg,
152 const blkptr_t *bpp);
153 void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx);
154 void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx);
155 void dsl_pool_upgrade_dir_clones(dsl_pool_t *dp, dmu_tx_t *tx);
156 void dsl_pool_mos_diduse_space(dsl_pool_t *dp,
157 int64_t used, int64_t comp, int64_t uncomp);
158 void dsl_pool_config_enter(dsl_pool_t *dp, void *tag);
159 void dsl_pool_config_enter_prio(dsl_pool_t *dp, void *tag);
160 void dsl_pool_config_exit(dsl_pool_t *dp, void *tag);
161 boolean_t dsl_pool_config_held(dsl_pool_t *dp);
162 boolean_t dsl_pool_config_held_writer(dsl_pool_t *dp);
163 boolean_t dsl_pool_need_dirty_delay(dsl_pool_t *dp);
164
165 taskq_t *dsl_pool_vnrele_taskq(dsl_pool_t *dp);
166
167 int dsl_pool_user_hold(dsl_pool_t *dp, uint64_t dsobj,
168 const char *tag, uint64_t now, dmu_tx_t *tx);
169 int dsl_pool_user_release(dsl_pool_t *dp, uint64_t dsobj,
170 const char *tag, dmu_tx_t *tx);
171 void dsl_pool_clean_tmp_userrefs(dsl_pool_t *dp);
172 int dsl_pool_open_special_dir(dsl_pool_t *dp, const char *name, dsl_dir_t **);
173 int dsl_pool_hold(const char *name, void *tag, dsl_pool_t **dp);
174 void dsl_pool_rele(dsl_pool_t *dp, void *tag);
175
176 void dsl_pool_create_obsolete_bpobj(dsl_pool_t *dp, dmu_tx_t *tx);
177 void dsl_pool_destroy_obsolete_bpobj(dsl_pool_t *dp, dmu_tx_t *tx);
178
179 #ifdef __cplusplus
180 }
181 #endif
182
183 #endif /* _SYS_DSL_POOL_H */
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79
80
81 typedef struct dsl_pool {
82 /* Immutable */
83 spa_t *dp_spa;
84 struct objset *dp_meta_objset;
85 struct dsl_dir *dp_root_dir;
86 struct dsl_dir *dp_mos_dir;
87 struct dsl_dir *dp_free_dir;
88 struct dsl_dir *dp_leak_dir;
89 struct dsl_dataset *dp_origin_snap;
90 uint64_t dp_root_dir_obj;
91 struct taskq *dp_vnrele_taskq;
92
93 /* No lock needed - sync context only */
94 blkptr_t dp_meta_rootbp;
95 uint64_t dp_tmp_userrefs_obj;
96 bpobj_t dp_free_bpobj;
97 uint64_t dp_bptree_obj;
98 uint64_t dp_empty_bpobj;
99
100 /*
101 * Used for "special" device only
102 * dp_rtime: the time (in ms) when we moved the data
103 */
104 hrtime_t dp_spec_rtime;
105 uint64_t dp_sync_history[2];
106
107 struct dsl_scan *dp_scan;
108
109 /* Uses dp_lock */
110 kmutex_t dp_lock;
111 kcondvar_t dp_spaceavail_cv;
112 uint64_t dp_dirty_pertxg[TXG_SIZE];
113 uint64_t dp_dirty_total;
114 uint64_t dp_long_freeing_total;
115 uint64_t dp_long_free_dirty_pertxg[TXG_SIZE];
116 uint64_t dp_mos_used_delta;
117 uint64_t dp_mos_compressed_delta;
118 uint64_t dp_mos_uncompressed_delta;
119
120 /*
121 * Time of most recently scheduled (furthest in the future)
122 * wakeup for delayed transactions.
123 */
124 hrtime_t dp_last_wakeup;
125
126 /* Has its own locking */
127 tx_state_t dp_tx;
128 txg_list_t dp_dirty_datasets;
129 txg_list_t dp_dirty_zilogs;
130 txg_list_t dp_dirty_dirs;
131 txg_list_t dp_sync_tasks;
132 taskq_t *dp_sync_taskq;
133 taskq_t *dp_zil_clean_taskq;
134
135 /*
136 * Protects administrative changes (properties, namespace)
137 *
138 * It is only held for write in syncing context. Therefore
139 * syncing context does not need to ever have it for read, since
140 * nobody else could possibly have it for write.
141 */
142 rrwlock_t dp_config_rwlock;
143
144 zfs_all_blkstats_t *dp_blkstats;
145 } dsl_pool_t;
146
147 int dsl_pool_init(spa_t *spa, uint64_t txg, dsl_pool_t **dpp);
148 int dsl_pool_open(dsl_pool_t *dp);
149 void dsl_pool_close(dsl_pool_t *dp);
150 dsl_pool_t *dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg);
151 void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg);
152 void dsl_pool_sync_done(dsl_pool_t *dp, uint64_t txg);
153 int dsl_pool_sync_context(dsl_pool_t *dp);
154 uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree);
155 uint64_t dsl_pool_adjustedfree(dsl_pool_t *dp, boolean_t netfree);
156 void dsl_pool_dirty_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
157 void dsl_pool_undirty_space(dsl_pool_t *dp, int64_t space, uint64_t txg);
158 void dsl_free(dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp);
159 void dsl_free_sync(zio_t *pio, dsl_pool_t *dp, uint64_t txg,
160 const blkptr_t *bpp);
161 void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx);
162 void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx);
163 void dsl_pool_upgrade_dir_clones(dsl_pool_t *dp, dmu_tx_t *tx);
164 void dsl_pool_mos_diduse_space(dsl_pool_t *dp,
165 int64_t used, int64_t comp, int64_t uncomp);
166 void dsl_pool_config_enter(dsl_pool_t *dp, void *tag);
167 void dsl_pool_config_enter_prio(dsl_pool_t *dp, void *tag);
168 void dsl_pool_config_exit(dsl_pool_t *dp, void *tag);
169 boolean_t dsl_pool_config_held(dsl_pool_t *dp);
170 boolean_t dsl_pool_config_held_writer(dsl_pool_t *dp);
171 boolean_t dsl_pool_need_dirty_delay(dsl_pool_t *dp);
172
173 taskq_t *dsl_pool_vnrele_taskq(dsl_pool_t *dp);
174
175 int dsl_pool_user_hold(dsl_pool_t *dp, uint64_t dsobj,
176 const char *tag, uint64_t now, dmu_tx_t *tx);
177 int dsl_pool_user_release(dsl_pool_t *dp, uint64_t dsobj,
178 const char *tag, dmu_tx_t *tx);
179 void dsl_pool_clean_tmp_userrefs(dsl_pool_t *dp);
180 int dsl_pool_open_special_dir(dsl_pool_t *dp, const char *name, dsl_dir_t **);
181 int dsl_pool_hold(const char *name, void *tag, dsl_pool_t **dp);
182 void dsl_pool_rele(dsl_pool_t *dp, void *tag);
183
184 #ifdef __cplusplus
185 }
186 #endif
187
188 #endif /* _SYS_DSL_POOL_H */
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