Cross Reference: /src/sys/dev/dm/dm

Lines Matching refs:head
67 dm_table_busy(dm_table_head_t *head, uint8_t table_id)
71 	mutex_enter(&head->table_mtx);
74 		id = head->cur_active_table;
76 		id = 1 - head->cur_active_table;
78 	head->io_cnt++;
80 	mutex_exit(&head->table_mtx);
88 dm_table_unbusy(dm_table_head_t *head)
91 	KASSERT(head->io_cnt != 0);
93 	mutex_enter(&head->table_mtx);
95 	if (--head->io_cnt == 0)
96 		cv_broadcast(&head->table_cv);
98 	mutex_exit(&head->table_mtx);
105 dm_table_get_entry(dm_table_head_t *head, uint8_t table_id)
109 	id = dm_table_busy(head, table_id);
111 	return &head->tables[id];
117 dm_table_release(dm_table_head_t *head, uint8_t table_id)
120 	dm_table_unbusy(head);
127 dm_table_switch_tables(dm_table_head_t *head)
130 	mutex_enter(&head->table_mtx);
132 	while (head->io_cnt != 0)
133 		cv_wait(&head->table_cv, &head->table_mtx);
135 	head->cur_active_table = 1 - head->cur_active_table;
137 	mutex_exit(&head->table_mtx);
147 dm_table_destroy(dm_table_head_t *head, uint8_t table_id)
153 	mutex_enter(&head->table_mtx);
155 	aprint_debug("dm_Table_destroy called with %d--%d\n", table_id, head->io_cnt);
157 	while (head->io_cnt != 0)
158 		cv_wait(&head->table_cv, &head->table_mtx);
161 		id = head->cur_active_table;
163 		id = 1 - head->cur_active_table;
165 	tbl = &head->tables[id];
176 	mutex_exit(&head->table_mtx);
185 dm_table_size_impl(dm_table_head_t *head, int table)
194 	id = dm_table_busy(head, table);
197 	tbl = &head->tables[id];
206 	dm_table_unbusy(head);
215 dm_table_size(dm_table_head_t *head)
218 	return dm_table_size_impl(head, DM_TABLE_ACTIVE);
225 dm_inactive_table_size(dm_table_head_t *head)
228 	return dm_table_size_impl(head, DM_TABLE_INACTIVE);
235 dm_table_disksize(dm_table_head_t *head, uint64_t *numsecp,
246 	id = dm_table_busy(head, DM_TABLE_ACTIVE);
249 	tbl = &head->tables[id];
271 	dm_table_unbusy(head);
281 dm_table_get_target_count(dm_table_head_t *head, uint8_t table_id)
290 	id = dm_table_busy(head, table_id);
291 	tbl = &head->tables[id];
296 	dm_table_unbusy(head);
306 dm_table_head_init(dm_table_head_t *head)
309 	head->cur_active_table = 0;
310 	head->io_cnt = 0;
313 	SLIST_INIT(&head->tables[0]);
314 	SLIST_INIT(&head->tables[1]);
316 	mutex_init(&head->table_mtx, MUTEX_DEFAULT, IPL_NONE);
317 	cv_init(&head->table_cv, "dm_io");
324 dm_table_head_destroy(dm_table_head_t *head)
327 	KASSERT(!mutex_owned(&head->table_mtx));
328 	KASSERT(!cv_has_waiters(&head->table_cv));
331 	KASSERT(head->io_cnt == 0);
333 	cv_destroy(&head->table_cv);
334 	mutex_destroy(&head->table_mtx);
340 	dm_table_head_t *head;
346 	head = &table_en->dm_dev->table_head;
347 	mutex_enter(&head->table_mtx);
352 			mutex_exit(&head->table_mtx);
362 	mutex_exit(&head->table_mtx);
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