88 static struct mon_buf *monwrite_find_hdr(struct mon_private *monpriv,  in monwrite_find_hdr()  argument
93 	list_for_each_entry_safe(entry, next, &monpriv->list, list)  in monwrite_find_hdr()
106 static int monwrite_new_hdr(struct mon_private *monpriv)  in monwrite_new_hdr()  argument
108 	struct monwrite_hdr *monhdr = &monpriv->hdr;  in monwrite_new_hdr()
118 		monbuf = monwrite_find_hdr(monpriv, monhdr);  in monwrite_new_hdr()
143 		list_add_tail(&monbuf->list, &monpriv->list);  in monwrite_new_hdr()
147 	monpriv->current_buf = monbuf;  in monwrite_new_hdr()
151 static int monwrite_new_data(struct mon_private *monpriv)  in monwrite_new_data()  argument
153 	struct monwrite_hdr *monhdr = &monpriv->hdr;  in monwrite_new_data()
154 	struct mon_buf *monbuf = monpriv->current_buf;  in monwrite_new_data()
175 		list_del(&monpriv->current_buf->list);  in monwrite_new_data()
176 		kfree(monpriv->current_buf->data);  in monwrite_new_data()
177 		kfree(monpriv->current_buf);  in monwrite_new_data()
178 		monpriv->current_buf = NULL;  in monwrite_new_data()
193 	struct mon_private *monpriv;  in monwrite_open()  local
195 	monpriv = kzalloc(sizeof(struct mon_private), GFP_KERNEL);  in monwrite_open()
196 	if (!monpriv)  in monwrite_open()
198 	INIT_LIST_HEAD(&monpriv->list);  in monwrite_open()
199 	monpriv->hdr_to_read = sizeof(monpriv->hdr);  in monwrite_open()
200 	mutex_init(&monpriv->thread_mutex);  in monwrite_open()
201 	filp->private_data = monpriv;  in monwrite_open()
202 	list_add_tail(&monpriv->priv_list, &mon_priv_list);  in monwrite_open()
208 	struct mon_private *monpriv = filp->private_data;  in monwrite_close()  local
211 	list_for_each_entry_safe(entry, next, &monpriv->list, list) {  in monwrite_close()
220 	list_del(&monpriv->priv_list);  in monwrite_close()
221 	kfree(monpriv);  in monwrite_close()
228 	struct mon_private *monpriv = filp->private_data;  in monwrite_write()  local
233 	mutex_lock(&monpriv->thread_mutex);  in monwrite_write()
235 		if (monpriv->hdr_to_read) {  in monwrite_write()
236 			len = min(count - written, monpriv->hdr_to_read);  in monwrite_write()
237 			to = (char *) &monpriv->hdr +  in monwrite_write()
238 				sizeof(monpriv->hdr) - monpriv->hdr_to_read;  in monwrite_write()
243 			monpriv->hdr_to_read -= len;  in monwrite_write()
245 			if (monpriv->hdr_to_read > 0)  in monwrite_write()
247 			rc = monwrite_new_hdr(monpriv);  in monwrite_write()
250 			monpriv->data_to_read = monpriv->current_buf ?  in monwrite_write()
251 				monpriv->current_buf->hdr.datalen : 0;  in monwrite_write()
254 		if (monpriv->data_to_read) {  in monwrite_write()
255 			len = min(count - written, monpriv->data_to_read);  in monwrite_write()
256 			to = monpriv->current_buf->data +  in monwrite_write()
257 				monpriv->hdr.datalen - monpriv->data_to_read;  in monwrite_write()
262 			monpriv->data_to_read -= len;  in monwrite_write()
264 			if (monpriv->data_to_read > 0)  in monwrite_write()
266 			rc = monwrite_new_data(monpriv);  in monwrite_write()
270 		monpriv->hdr_to_read = sizeof(monpriv->hdr);  in monwrite_write()
272 	mutex_unlock(&monpriv->thread_mutex);  in monwrite_write()
276 	monpriv->data_to_read = 0;  in monwrite_write()
277 	monpriv->hdr_to_read = sizeof(struct monwrite_hdr);  in monwrite_write()
278 	mutex_unlock(&monpriv->thread_mutex);  in monwrite_write()
302 	struct mon_private *monpriv;  in monwriter_freeze()  local
305 	list_for_each_entry(monpriv, &mon_priv_list, priv_list) {  in monwriter_freeze()
306 		list_for_each_entry(monbuf, &monpriv->list, list) {  in monwriter_freeze()
317 	struct mon_private *monpriv;  in monwriter_restore()  local
320 	list_for_each_entry(monpriv, &mon_priv_list, priv_list) {  in monwriter_restore()
321 		list_for_each_entry(monbuf, &monpriv->list, list) {  in monwriter_restore()