453 			struct disk_conf *disk_conf =  in highest_fencing_policy()  local
454 				rcu_dereference(peer_device->device->ldev->disk_conf);  in highest_fencing_policy()
455 			fp = max_t(enum drbd_fencing_p, fp, disk_conf->fencing);  in highest_fencing_policy()
980 	u_size = rcu_dereference(device->ldev->disk_conf)->disk_size;  in drbd_determine_dev_size()
1145 static int drbd_check_al_size(struct drbd_device *device, struct disk_conf *dc)  in drbd_check_al_size()
1338 	struct disk_conf *dc;  in drbd_setup_queue_param()
1347 		dc = rcu_dereference(device->ldev->disk_conf);  in drbd_setup_queue_param()
1496 static bool write_ordering_changed(struct disk_conf *a, struct disk_conf *b)  in write_ordering_changed()
1503 static void sanitize_disk_conf(struct drbd_device *device, struct disk_conf *disk_conf,  in sanitize_disk_conf()  argument
1508 	if (disk_conf->al_extents < DRBD_AL_EXTENTS_MIN)  in sanitize_disk_conf()
1509 		disk_conf->al_extents = DRBD_AL_EXTENTS_MIN;  in sanitize_disk_conf()
1510 	if (disk_conf->al_extents > drbd_al_extents_max(nbc))  in sanitize_disk_conf()
1511 		disk_conf->al_extents = drbd_al_extents_max(nbc);  in sanitize_disk_conf()
1514 		if (disk_conf->rs_discard_granularity) {  in sanitize_disk_conf()
1515 			disk_conf->rs_discard_granularity = 0; /* disable feature */  in sanitize_disk_conf()
1520 	if (disk_conf->rs_discard_granularity) {  in sanitize_disk_conf()
1521 		int orig_value = disk_conf->rs_discard_granularity;  in sanitize_disk_conf()
1524 		if (q->limits.discard_granularity > disk_conf->rs_discard_granularity)  in sanitize_disk_conf()
1525 			disk_conf->rs_discard_granularity = q->limits.discard_granularity;  in sanitize_disk_conf()
1527 		remainder = disk_conf->rs_discard_granularity % q->limits.discard_granularity;  in sanitize_disk_conf()
1528 		disk_conf->rs_discard_granularity += remainder;  in sanitize_disk_conf()
1530 		if (disk_conf->rs_discard_granularity > q->limits.max_discard_sectors << 9)  in sanitize_disk_conf()
1531 			disk_conf->rs_discard_granularity = q->limits.max_discard_sectors << 9;  in sanitize_disk_conf()
1533 		if (disk_conf->rs_discard_granularity != orig_value)  in sanitize_disk_conf()
1535 				  disk_conf->rs_discard_granularity);  in sanitize_disk_conf()
1539 static int disk_opts_check_al_size(struct drbd_device *device, struct disk_conf *dc)  in disk_opts_check_al_size()
1568 	struct disk_conf *new_disk_conf, *old_disk_conf;  in drbd_adm_disk_opts()
1589 	new_disk_conf = kmalloc(sizeof(struct disk_conf), GFP_KERNEL);  in drbd_adm_disk_opts()
1596 	old_disk_conf = device->ldev->disk_conf;  in drbd_adm_disk_opts()
1639 		rcu_assign_pointer(device->ldev->disk_conf, new_disk_conf);  in drbd_adm_disk_opts()
1728 		struct disk_conf *new_disk_conf,  in open_backing_devices()
1778 	kfree(ldev->disk_conf);  in drbd_backing_dev_free()
1794 	struct disk_conf *new_disk_conf = NULL;  in drbd_adm_attach()
1842 	new_disk_conf = kzalloc(sizeof(struct disk_conf), GFP_KERNEL);  in drbd_adm_attach()
1847 	nbc->disk_conf = new_disk_conf;  in drbd_adm_attach()
1997 	unsigned long long nsz = drbd_new_dev_size(device, nbc, nbc->disk_conf->disk_size, 0);  in drbd_adm_attach()
2000 		if (nsz == nbc->disk_conf->disk_size) {  in drbd_adm_attach()
2130 	    (ns.pdsk == D_OUTDATED || rcu_dereference(device->ldev->disk_conf)->fencing == FP_DONT_CARE))  in drbd_adm_attach()
2138 	if (rcu_dereference(device->ldev->disk_conf)->al_updates)  in drbd_adm_attach()
2320 			enum drbd_fencing_p fp = rcu_dereference(device->ldev->disk_conf)->fencing;  in _check_net_options()
2831 	struct disk_conf *old_disk_conf, *new_disk_conf = NULL;  in drbd_adm_resize()
2883 	u_size = rcu_dereference(device->ldev->disk_conf)->disk_size;  in drbd_adm_resize()
2886 		new_disk_conf = kmalloc(sizeof(struct disk_conf), GFP_KERNEL);  in drbd_adm_resize()
2920 		old_disk_conf = device->ldev->disk_conf;  in drbd_adm_resize()
2923 		rcu_assign_pointer(device->ldev->disk_conf, new_disk_conf);  in drbd_adm_resize()
3460 			struct disk_conf *disk_conf =  in drbd_adm_dump_devices()  local
3461 				rcu_dereference(device->ldev->disk_conf);  in drbd_adm_dump_devices()
3463 			err = disk_conf_to_skb(skb, disk_conf, !capable(CAP_SYS_ADMIN));  in drbd_adm_dump_devices()
3797 		struct disk_conf *disk_conf;  in nla_put_status_info()  local
3799 		disk_conf = rcu_dereference(device->ldev->disk_conf);  in nla_put_status_info()
3800 		err = disk_conf_to_skb(skb, disk_conf, exclude_sensitive);  in nla_put_status_info()