78 static struct mon_buf *monwrite_find_hdr(struct mon_private *monpriv,  in monwrite_find_hdr()  argument
83 	list_for_each_entry_safe(entry, next, &monpriv->list, list)  in monwrite_find_hdr()
96 static int monwrite_new_hdr(struct mon_private *monpriv)  in monwrite_new_hdr()  argument
98 	struct monwrite_hdr *monhdr = &monpriv->hdr;  in monwrite_new_hdr()
108 		monbuf = monwrite_find_hdr(monpriv, monhdr);  in monwrite_new_hdr()
133 		list_add_tail(&monbuf->list, &monpriv->list);  in monwrite_new_hdr()
137 	monpriv->current_buf = monbuf;  in monwrite_new_hdr()
141 static int monwrite_new_data(struct mon_private *monpriv)  in monwrite_new_data()  argument
143 	struct monwrite_hdr *monhdr = &monpriv->hdr;  in monwrite_new_data()
144 	struct mon_buf *monbuf = monpriv->current_buf;  in monwrite_new_data()
165 		list_del(&monpriv->current_buf->list);  in monwrite_new_data()
166 		kfree(monpriv->current_buf->data);  in monwrite_new_data()
167 		kfree(monpriv->current_buf);  in monwrite_new_data()
168 		monpriv->current_buf = NULL;  in monwrite_new_data()
183 	struct mon_private *monpriv;  in monwrite_open()  local
185 	monpriv = kzalloc(sizeof(struct mon_private), GFP_KERNEL);  in monwrite_open()
186 	if (!monpriv)  in monwrite_open()
188 	INIT_LIST_HEAD(&monpriv->list);  in monwrite_open()
189 	monpriv->hdr_to_read = sizeof(monpriv->hdr);  in monwrite_open()
190 	mutex_init(&monpriv->thread_mutex);  in monwrite_open()
191 	filp->private_data = monpriv;  in monwrite_open()
192 	list_add_tail(&monpriv->priv_list, &mon_priv_list);  in monwrite_open()
198 	struct mon_private *monpriv = filp->private_data;  in monwrite_close()  local
201 	list_for_each_entry_safe(entry, next, &monpriv->list, list) {  in monwrite_close()
210 	list_del(&monpriv->priv_list);  in monwrite_close()
211 	kfree(monpriv);  in monwrite_close()
218 	struct mon_private *monpriv = filp->private_data;  in monwrite_write()  local
223 	mutex_lock(&monpriv->thread_mutex);  in monwrite_write()
225 		if (monpriv->hdr_to_read) {  in monwrite_write()
226 			len = min(count - written, monpriv->hdr_to_read);  in monwrite_write()
227 			to = (char *) &monpriv->hdr +  in monwrite_write()
228 				sizeof(monpriv->hdr) - monpriv->hdr_to_read;  in monwrite_write()
233 			monpriv->hdr_to_read -= len;  in monwrite_write()
235 			if (monpriv->hdr_to_read > 0)  in monwrite_write()
237 			rc = monwrite_new_hdr(monpriv);  in monwrite_write()
240 			monpriv->data_to_read = monpriv->current_buf ?  in monwrite_write()
241 				monpriv->current_buf->hdr.datalen : 0;  in monwrite_write()
244 		if (monpriv->data_to_read) {  in monwrite_write()
245 			len = min(count - written, monpriv->data_to_read);  in monwrite_write()
246 			to = monpriv->current_buf->data +  in monwrite_write()
247 				monpriv->hdr.datalen - monpriv->data_to_read;  in monwrite_write()
252 			monpriv->data_to_read -= len;  in monwrite_write()
254 			if (monpriv->data_to_read > 0)  in monwrite_write()
256 			rc = monwrite_new_data(monpriv);  in monwrite_write()
260 		monpriv->hdr_to_read = sizeof(monpriv->hdr);  in monwrite_write()
262 	mutex_unlock(&monpriv->thread_mutex);  in monwrite_write()
266 	monpriv->data_to_read = 0;  in monwrite_write()
267 	monpriv->hdr_to_read = sizeof(struct monwrite_hdr);  in monwrite_write()
268 	mutex_unlock(&monpriv->thread_mutex);  in monwrite_write()
292 	struct mon_private *monpriv;  in monwriter_freeze()  local
295 	list_for_each_entry(monpriv, &mon_priv_list, priv_list) {  in monwriter_freeze()
296 		list_for_each_entry(monbuf, &monpriv->list, list) {  in monwriter_freeze()
307 	struct mon_private *monpriv;  in monwriter_restore()  local
310 	list_for_each_entry(monpriv, &mon_priv_list, priv_list) {  in monwriter_restore()
311 		list_for_each_entry(monbuf, &monpriv->list, list) {  in monwriter_restore()