58 	combined_walk_data_t *cwd;  in combined_walk_init()  local
60 	cwd = mdb_alloc(sizeof (combined_walk_data_t), UM_SLEEP);  in combined_walk_init()
62 	cwd->cwd_initial_walk_addr = wsp->walk_addr;  in combined_walk_init()
63 	cwd->cwd_current_walk = cwd->cwd_final_walk = NULL;  in combined_walk_init()
64 	cwd->cwd_next = cwd->cwd_prev = NULL;  in combined_walk_init()
65 	cwd->cwd_tag = NULL;  in combined_walk_init()
66 	wsp->walk_data = cwd;  in combined_walk_init()
82 combined_walk_data_save(combined_walk_data_t *cwd, void *tag)  in combined_walk_data_save()  argument
84 	cwd->cwd_next = cwd_saved;  in combined_walk_data_save()
85 	cwd->cwd_prev = NULL;  in combined_walk_data_save()
87 		cwd_saved->cwd_prev = cwd;  in combined_walk_data_save()
89 	cwd_saved = cwd;  in combined_walk_data_save()
90 	cwd->cwd_tag = tag;  in combined_walk_data_save()
94 combined_walk_data_drop(combined_walk_data_t *cwd)  in combined_walk_data_drop()  argument
96 	if (cwd->cwd_prev == NULL) {  in combined_walk_data_drop()
97 		cwd_saved = cwd->cwd_next;  in combined_walk_data_drop()
99 		cwd->cwd_prev->cwd_next = cwd->cwd_next;  in combined_walk_data_drop()
101 	if (cwd->cwd_next != NULL) {  in combined_walk_data_drop()
102 		cwd->cwd_next->cwd_prev = cwd->cwd_prev;  in combined_walk_data_drop()
104 	cwd->cwd_next = cwd->cwd_prev = NULL;  in combined_walk_data_drop()
105 	cwd->cwd_tag = NULL;  in combined_walk_data_drop()
111 	combined_walk_data_t *cwd;  in combined_walk_data_find()  local
117 	for (cwd = cwd_saved; cwd != NULL; cwd = cwd->cwd_next) {  in combined_walk_data_find()
118 		if (cwd->cwd_tag == tag) {  in combined_walk_data_find()
119 			return (cwd);  in combined_walk_data_find()
127 combined_walk_append(combined_walk_data_t *cwd, combined_walk_t *cw)  in combined_walk_append()  argument
129 	if (cwd->cwd_final_walk == NULL) {  in combined_walk_append()
130 		cwd->cwd_current_walk = cwd->cwd_final_walk = cw;  in combined_walk_append()
132 		cwd->cwd_final_walk->cw_next = cw;  in combined_walk_append()
133 		cwd->cwd_final_walk = cw;  in combined_walk_append()
138 combined_walk_remove_current(combined_walk_data_t *cwd)  in combined_walk_remove_current()  argument
140 	combined_walk_t *cw = cwd->cwd_current_walk;  in combined_walk_remove_current()
144 	if (cw == cwd->cwd_final_walk) {  in combined_walk_remove_current()
145 		cwd->cwd_final_walk = cw->cw_next;  in combined_walk_remove_current()
147 	cwd->cwd_current_walk = cw->cw_next;  in combined_walk_remove_current()
158 	combined_walk_data_t *cwd = wsp->walk_data;  in combined_walk_add()  local
170 	combined_walk_append(cwd, cw);  in combined_walk_add()
176 	combined_walk_data_t *cwd = wsp->walk_data;  in combined_walk_step()  local
177 	combined_walk_t *cw = cwd->cwd_current_walk;  in combined_walk_step()
187 		wsp->walk_addr = cwd->cwd_initial_walk_addr;  in combined_walk_step()
196 	combined_walk_data_save(cwd, cw->cw_data);  in combined_walk_step()
199 	combined_walk_data_drop(cwd);  in combined_walk_step()
203 	wsp->walk_data = cwd;  in combined_walk_step()
207 	(void) combined_walk_remove_current(cwd);  in combined_walk_step()
211 	wsp->walk_data = cwd;  in combined_walk_step()
220 	combined_walk_data_t *cwd;  in combined_walk_fini()  local
229 	cwd = combined_walk_data_find(wsp->walk_data);  in combined_walk_fini()
230 	if (cwd == NULL) {  in combined_walk_fini()
235 		cwd = wsp->walk_data;  in combined_walk_fini()
237 		combined_walk_data_drop(cwd);  in combined_walk_fini()
240 	while ((cw = combined_walk_remove_current(cwd)) != NULL) {  in combined_walk_fini()
248 	mdb_free(cwd, sizeof (combined_walk_data_t));  in combined_walk_fini()