net/shaper/shaper.c

254 	struct net_shaper_hierarchy *hierarchy = net_shaper_hierarchy(binding);
257 	if (!hierarchy || xa_get_mark(&hierarchy->shapers, index,
261 	return xa_load(&hierarchy->shapers, index);
264 /* Allocate on demand the per device shaper's hierarchy container.
270 	struct net_shaper_hierarchy *hierarchy = net_shaper_hierarchy(binding);
272 	if (hierarchy)
273 		return hierarchy;
275 	hierarchy = kmalloc(sizeof(*hierarchy), GFP_KERNEL);
276 	if (!hierarchy)
280 	xa_init_flags(&hierarchy->shapers, XA_FLAGS_ALLOC);
285 		WRITE_ONCE(binding->netdev->net_shaper_hierarchy, hierarchy);
288 	return hierarchy;
291 /* Prepare the hierarchy container to actually insert the given shaper, doing
298 	struct net_shaper_hierarchy *hierarchy = net_shaper_hierarchy(binding);
303 	if (!hierarchy)
307 	cur = xa_load(&hierarchy->shapers, index);
321 		ret = xa_alloc(&hierarchy->shapers, &index, NULL,
338 	/* Mark 'tentative' shaper inside the hierarchy container.
341 	xa_lock(&hierarchy->shapers);
342 	prev = __xa_store(&hierarchy->shapers, index, cur, GFP_KERNEL);
343 	__xa_set_mark(&hierarchy->shapers, index, NET_SHAPER_NOT_VALID);
344 	xa_unlock(&hierarchy->shapers);
355 		xa_erase(&hierarchy->shapers, index);
365 	struct net_shaper_hierarchy *hierarchy = net_shaper_hierarchy(binding);
370 	xa_lock(&hierarchy->shapers);
374 		cur = xa_load(&hierarchy->shapers, index);
379 		 * and update the hierarchy container.
381 		__xa_clear_mark(&hierarchy->shapers, index,
385 	xa_unlock(&hierarchy->shapers);
388 /* Rollback all the tentative inserts from the hierarchy. */
391 	struct net_shaper_hierarchy *hierarchy = net_shaper_hierarchy(binding);
395 	if (!hierarchy)
398 	xa_lock(&hierarchy->shapers);
399 	xa_for_each_marked(&hierarchy->shapers, index, cur,
401 		__xa_erase(&hierarchy->shapers, index);
404 	xa_unlock(&hierarchy->shapers);
533 	/* Fetch existing hierarchy, if any, so that user provide info will
778 	struct net_shaper_hierarchy *hierarchy;
785 	hierarchy = net_shaper_hierarchy(binding);
786 	if (!hierarchy)
790 	for (; (shaper = xa_find(&hierarchy->shapers, &ctx->start_index,
803 	struct net_shaper_hierarchy *hierarchy;
822 	hierarchy = net_shaper_hierarchy_setup(binding);
823 	if (!hierarchy) {
858 	struct net_shaper_hierarchy *hierarchy = net_shaper_hierarchy(binding);
870 	xa_erase(&hierarchy->shapers, net_shaper_handle_to_index(&handle));
1013 	struct net_shaper_hierarchy *hierarchy = net_shaper_hierarchy(binding);
1042 	xa_for_each(&hierarchy->shapers, index, cur) {
1069 	struct net_shaper_hierarchy *hierarchy;
1086 	hierarchy = net_shaper_hierarchy(binding);
1087 	if (!hierarchy) {
1141 	struct net_shaper_hierarchy *hierarchy;
1199 	hierarchy = net_shaper_hierarchy_setup(binding);
1200 	if (!hierarchy) {
1356 	struct net_shaper_hierarchy *hierarchy = net_shaper_hierarchy(binding);
1360 	if (!hierarchy)
1364 	xa_lock(&hierarchy->shapers);
1365 	xa_for_each(&hierarchy->shapers, index, cur) {
1366 		__xa_erase(&hierarchy->shapers, index);
1369 	xa_unlock(&hierarchy->shapers);
1372 	kfree(hierarchy);
1388 	struct net_shaper_hierarchy *hierarchy;
1394 	hierarchy = net_shaper_hierarchy(&binding);
1395 	if (!hierarchy)
1420 		xa_erase(&hierarchy->shapers, index);