30
31 #include <sys/dmu.h>
32 #include <sys/dsl_pool.h>
33 #include <sys/dsl_synctask.h>
34 #include <sys/refcount.h>
35 #include <sys/zfs_context.h>
36
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40
41 struct dsl_dataset;
42
43 /*
44 * DD_FIELD_* are strings that are used in the "extensified" dsl_dir zap object.
45 * They should be of the format <reverse-dns>:<field>.
46 */
47
48 #define DD_FIELD_FILESYSTEM_COUNT "com.joyent:filesystem_count"
49 #define DD_FIELD_SNAPSHOT_COUNT "com.joyent:snapshot_count"
50 #define DD_FIELD_LAST_REMAP_TXG "com.delphix:last_remap_txg"
51
52 typedef enum dd_used {
53 DD_USED_HEAD,
54 DD_USED_SNAP,
55 DD_USED_CHILD,
56 DD_USED_CHILD_RSRV,
57 DD_USED_REFRSRV,
58 DD_USED_NUM
59 } dd_used_t;
60
61 #define DD_FLAG_USED_BREAKDOWN (1<<0)
62
63 typedef struct dsl_dir_phys {
64 uint64_t dd_creation_time; /* not actually used */
65 uint64_t dd_head_dataset_obj;
66 uint64_t dd_parent_obj;
67 uint64_t dd_origin_obj;
68 uint64_t dd_child_dir_zapobj;
69 /*
70 * how much space our children are accounting for; for leaf
128 dsl_dir_t **, const char **tail);
129 int dsl_dir_hold_obj(dsl_pool_t *dp, uint64_t ddobj,
130 const char *tail, void *tag, dsl_dir_t **);
131 void dsl_dir_name(dsl_dir_t *dd, char *buf);
132 int dsl_dir_namelen(dsl_dir_t *dd);
133 uint64_t dsl_dir_create_sync(dsl_pool_t *dp, dsl_dir_t *pds,
134 const char *name, dmu_tx_t *tx);
135
136 uint64_t dsl_dir_get_used(dsl_dir_t *dd);
137 uint64_t dsl_dir_get_quota(dsl_dir_t *dd);
138 uint64_t dsl_dir_get_reservation(dsl_dir_t *dd);
139 uint64_t dsl_dir_get_compressratio(dsl_dir_t *dd);
140 uint64_t dsl_dir_get_logicalused(dsl_dir_t *dd);
141 uint64_t dsl_dir_get_usedsnap(dsl_dir_t *dd);
142 uint64_t dsl_dir_get_usedds(dsl_dir_t *dd);
143 uint64_t dsl_dir_get_usedrefreserv(dsl_dir_t *dd);
144 uint64_t dsl_dir_get_usedchild(dsl_dir_t *dd);
145 void dsl_dir_get_origin(dsl_dir_t *dd, char *buf);
146 int dsl_dir_get_filesystem_count(dsl_dir_t *dd, uint64_t *count);
147 int dsl_dir_get_snapshot_count(dsl_dir_t *dd, uint64_t *count);
148 int dsl_dir_get_remaptxg(dsl_dir_t *dd, uint64_t *count);
149
150 void dsl_dir_stats(dsl_dir_t *dd, nvlist_t *nv);
151 uint64_t dsl_dir_space_available(dsl_dir_t *dd,
152 dsl_dir_t *ancestor, int64_t delta, int ondiskonly);
153 void dsl_dir_dirty(dsl_dir_t *dd, dmu_tx_t *tx);
154 void dsl_dir_sync(dsl_dir_t *dd, dmu_tx_t *tx);
155 int dsl_dir_tempreserve_space(dsl_dir_t *dd, uint64_t mem,
156 uint64_t asize, boolean_t netfree, void **tr_cookiep, dmu_tx_t *tx);
157 void dsl_dir_tempreserve_clear(void *tr_cookie, dmu_tx_t *tx);
158 void dsl_dir_willuse_space(dsl_dir_t *dd, int64_t space, dmu_tx_t *tx);
159 void dsl_dir_diduse_space(dsl_dir_t *dd, dd_used_t type,
160 int64_t used, int64_t compressed, int64_t uncompressed, dmu_tx_t *tx);
161 void dsl_dir_transfer_space(dsl_dir_t *dd, int64_t delta,
162 dd_used_t oldtype, dd_used_t newtype, dmu_tx_t *tx);
163 int dsl_dir_set_quota(const char *ddname, zprop_source_t source,
164 uint64_t quota);
165 int dsl_dir_set_reservation(const char *ddname, zprop_source_t source,
166 uint64_t reservation);
167 int dsl_dir_activate_fs_ss_limit(const char *);
168 int dsl_fs_ss_limit_check(dsl_dir_t *, uint64_t, zfs_prop_t, dsl_dir_t *,
169 cred_t *);
170 void dsl_fs_ss_count_adjust(dsl_dir_t *, int64_t, const char *, dmu_tx_t *);
171 int dsl_dir_update_last_remap_txg(dsl_dir_t *, uint64_t);
172 int dsl_dir_rename(const char *oldname, const char *newname);
173 int dsl_dir_transfer_possible(dsl_dir_t *sdd, dsl_dir_t *tdd,
174 uint64_t fs_cnt, uint64_t ss_cnt, uint64_t space, cred_t *);
175 boolean_t dsl_dir_is_clone(dsl_dir_t *dd);
176 void dsl_dir_new_refreservation(dsl_dir_t *dd, struct dsl_dataset *ds,
177 uint64_t reservation, cred_t *cr, dmu_tx_t *tx);
178 void dsl_dir_snap_cmtime_update(dsl_dir_t *dd);
179 timestruc_t dsl_dir_snap_cmtime(dsl_dir_t *dd);
180 void dsl_dir_set_reservation_sync_impl(dsl_dir_t *dd, uint64_t value,
181 dmu_tx_t *tx);
182 void dsl_dir_zapify(dsl_dir_t *dd, dmu_tx_t *tx);
183 boolean_t dsl_dir_is_zapified(dsl_dir_t *dd);
184
185 /* internal reserved dir name */
186 #define MOS_DIR_NAME "$MOS"
187 #define ORIGIN_DIR_NAME "$ORIGIN"
188 #define FREE_DIR_NAME "$FREE"
189 #define LEAK_DIR_NAME "$LEAK"
190
191 #ifdef ZFS_DEBUG
192 #define dprintf_dd(dd, fmt, ...) do { \
193 if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
194 char *__ds_name = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN, KM_SLEEP); \
195 dsl_dir_name(dd, __ds_name); \
196 dprintf("dd=%s " fmt, __ds_name, __VA_ARGS__); \
197 kmem_free(__ds_name, ZFS_MAX_DATASET_NAME_LEN); \
198 } \
199 _NOTE(CONSTCOND) } while (0)
200 #else
201 #define dprintf_dd(dd, fmt, ...)
202 #endif
203
204 #ifdef __cplusplus
205 }
206 #endif
207
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30
31 #include <sys/dmu.h>
32 #include <sys/dsl_pool.h>
33 #include <sys/dsl_synctask.h>
34 #include <sys/refcount.h>
35 #include <sys/zfs_context.h>
36
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40
41 struct dsl_dataset;
42
43 /*
44 * DD_FIELD_* are strings that are used in the "extensified" dsl_dir zap object.
45 * They should be of the format <reverse-dns>:<field>.
46 */
47
48 #define DD_FIELD_FILESYSTEM_COUNT "com.joyent:filesystem_count"
49 #define DD_FIELD_SNAPSHOT_COUNT "com.joyent:snapshot_count"
50
51 typedef enum dd_used {
52 DD_USED_HEAD,
53 DD_USED_SNAP,
54 DD_USED_CHILD,
55 DD_USED_CHILD_RSRV,
56 DD_USED_REFRSRV,
57 DD_USED_NUM
58 } dd_used_t;
59
60 #define DD_FLAG_USED_BREAKDOWN (1<<0)
61
62 typedef struct dsl_dir_phys {
63 uint64_t dd_creation_time; /* not actually used */
64 uint64_t dd_head_dataset_obj;
65 uint64_t dd_parent_obj;
66 uint64_t dd_origin_obj;
67 uint64_t dd_child_dir_zapobj;
68 /*
69 * how much space our children are accounting for; for leaf
127 dsl_dir_t **, const char **tail);
128 int dsl_dir_hold_obj(dsl_pool_t *dp, uint64_t ddobj,
129 const char *tail, void *tag, dsl_dir_t **);
130 void dsl_dir_name(dsl_dir_t *dd, char *buf);
131 int dsl_dir_namelen(dsl_dir_t *dd);
132 uint64_t dsl_dir_create_sync(dsl_pool_t *dp, dsl_dir_t *pds,
133 const char *name, dmu_tx_t *tx);
134
135 uint64_t dsl_dir_get_used(dsl_dir_t *dd);
136 uint64_t dsl_dir_get_quota(dsl_dir_t *dd);
137 uint64_t dsl_dir_get_reservation(dsl_dir_t *dd);
138 uint64_t dsl_dir_get_compressratio(dsl_dir_t *dd);
139 uint64_t dsl_dir_get_logicalused(dsl_dir_t *dd);
140 uint64_t dsl_dir_get_usedsnap(dsl_dir_t *dd);
141 uint64_t dsl_dir_get_usedds(dsl_dir_t *dd);
142 uint64_t dsl_dir_get_usedrefreserv(dsl_dir_t *dd);
143 uint64_t dsl_dir_get_usedchild(dsl_dir_t *dd);
144 void dsl_dir_get_origin(dsl_dir_t *dd, char *buf);
145 int dsl_dir_get_filesystem_count(dsl_dir_t *dd, uint64_t *count);
146 int dsl_dir_get_snapshot_count(dsl_dir_t *dd, uint64_t *count);
147
148 void dsl_dir_stats(dsl_dir_t *dd, nvlist_t *nv);
149 uint64_t dsl_dir_space_available(dsl_dir_t *dd,
150 dsl_dir_t *ancestor, int64_t delta, int ondiskonly);
151 void dsl_dir_dirty(dsl_dir_t *dd, dmu_tx_t *tx);
152 void dsl_dir_sync(dsl_dir_t *dd, dmu_tx_t *tx);
153 int dsl_dir_tempreserve_space(dsl_dir_t *dd, uint64_t mem,
154 uint64_t asize, boolean_t netfree, void **tr_cookiep, dmu_tx_t *tx);
155 void dsl_dir_tempreserve_clear(void *tr_cookie, dmu_tx_t *tx);
156 void dsl_dir_willuse_space(dsl_dir_t *dd, int64_t space, dmu_tx_t *tx);
157 void dsl_dir_diduse_space(dsl_dir_t *dd, dd_used_t type,
158 int64_t used, int64_t compressed, int64_t uncompressed, dmu_tx_t *tx);
159 void dsl_dir_transfer_space(dsl_dir_t *dd, int64_t delta,
160 dd_used_t oldtype, dd_used_t newtype, dmu_tx_t *tx);
161 int dsl_dir_set_quota(const char *ddname, zprop_source_t source,
162 uint64_t quota);
163 int dsl_dir_set_reservation(const char *ddname, zprop_source_t source,
164 uint64_t reservation);
165 int dsl_dir_activate_fs_ss_limit(const char *);
166 int dsl_fs_ss_limit_check(dsl_dir_t *, uint64_t, zfs_prop_t, dsl_dir_t *,
167 cred_t *);
168 void dsl_fs_ss_count_adjust(dsl_dir_t *, int64_t, const char *, dmu_tx_t *);
169 int dsl_dir_rename(const char *oldname, const char *newname);
170 int dsl_dir_transfer_possible(dsl_dir_t *sdd, dsl_dir_t *tdd,
171 uint64_t fs_cnt, uint64_t ss_cnt, uint64_t space, cred_t *);
172 boolean_t dsl_dir_is_clone(dsl_dir_t *dd);
173 void dsl_dir_new_refreservation(dsl_dir_t *dd, struct dsl_dataset *ds,
174 uint64_t reservation, cred_t *cr, dmu_tx_t *tx);
175 void dsl_dir_snap_cmtime_update(dsl_dir_t *dd);
176 timestruc_t dsl_dir_snap_cmtime(dsl_dir_t *dd);
177 void dsl_dir_set_reservation_sync_impl(dsl_dir_t *dd, uint64_t value,
178 dmu_tx_t *tx);
179 void dsl_dir_zapify(dsl_dir_t *dd, dmu_tx_t *tx);
180 boolean_t dsl_dir_is_zapified(dsl_dir_t *dd);
181
182 /* internal reserved dir name */
183 #define MOS_DIR_NAME "$MOS"
184 #define ORIGIN_DIR_NAME "$ORIGIN"
185 #define XLATION_DIR_NAME "$XLATION"
186 #define FREE_DIR_NAME "$FREE"
187 #define LEAK_DIR_NAME "$LEAK"
188
189 #ifdef ZFS_DEBUG
190 #define dprintf_dd(dd, fmt, ...) do { \
191 if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
192 char *__ds_name = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN, KM_SLEEP); \
193 dsl_dir_name(dd, __ds_name); \
194 dprintf("dd=%s " fmt, __ds_name, __VA_ARGS__); \
195 kmem_free(__ds_name, ZFS_MAX_DATASET_NAME_LEN); \
196 } \
197 _NOTE(CONSTCOND) } while (0)
198 #else
199 #define dprintf_dd(dd, fmt, ...)
200 #endif
201
202 #ifdef __cplusplus
203 }
204 #endif
205
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