19 static struct dentry *drbd_debugfs_root;
20 static struct dentry *drbd_debugfs_version;
21 static struct dentry *drbd_debugfs_resources;
22 static struct dentry *drbd_debugfs_minors;
427 	struct dentry *parent;  in drbd_single_open()
432 	parent = file->f_path.dentry->d_parent;  in drbd_single_open()
439 	if (simple_positive(file->f_path.dentry)  in drbd_single_open()
476 	struct dentry *dentry;  in drbd_debugfs_resource_add()  local
480 	dentry = debugfs_create_dir(resource->name, drbd_debugfs_resources);  in drbd_debugfs_resource_add()
481 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_resource_add()
483 	resource->debugfs_res = dentry;  in drbd_debugfs_resource_add()
485 	dentry = debugfs_create_dir("volumes", resource->debugfs_res);  in drbd_debugfs_resource_add()
486 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_resource_add()
488 	resource->debugfs_res_volumes = dentry;  in drbd_debugfs_resource_add()
490 	dentry = debugfs_create_dir("connections", resource->debugfs_res);  in drbd_debugfs_resource_add()
491 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_resource_add()
493 	resource->debugfs_res_connections = dentry;  in drbd_debugfs_resource_add()
495 	dentry = debugfs_create_file("in_flight_summary", S_IRUSR|S_IRGRP,  in drbd_debugfs_resource_add()
498 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_resource_add()
500 	resource->debugfs_res_in_flight_summary = dentry;  in drbd_debugfs_resource_add()
508 static void drbd_debugfs_remove(struct dentry **dp)  in drbd_debugfs_remove()
646 	struct dentry *conns_dir = connection->resource->debugfs_res_connections;  in drbd_debugfs_connection_add()
647 	struct dentry *dentry;  in drbd_debugfs_connection_add()  local
654 	dentry = debugfs_create_dir("peer", conns_dir);  in drbd_debugfs_connection_add()
655 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_connection_add()
657 	connection->debugfs_conn = dentry;  in drbd_debugfs_connection_add()
659 	dentry = debugfs_create_file("callback_history", S_IRUSR|S_IRGRP,  in drbd_debugfs_connection_add()
662 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_connection_add()
664 	connection->debugfs_conn_callback_history = dentry;  in drbd_debugfs_connection_add()
666 	dentry = debugfs_create_file("oldest_requests", S_IRUSR|S_IRGRP,  in drbd_debugfs_connection_add()
669 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_connection_add()
671 	connection->debugfs_conn_oldest_requests = dentry;  in drbd_debugfs_connection_add()
802 	struct dentry *vols_dir = device->resource->debugfs_res_volumes;  in drbd_debugfs_device_attr()
807 	struct dentry *dentry;  in drbd_debugfs_device_attr()  local
812 	dentry = debugfs_create_dir(vnr_buf, vols_dir);  in drbd_debugfs_device_attr()
813 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_device_attr()
815 	device->debugfs_vol = dentry;  in drbd_debugfs_device_attr()
822 	dentry = debugfs_create_symlink(minor_buf, drbd_debugfs_minors, slink_name);  in drbd_debugfs_device_attr()
825 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_device_attr()
827 	device->debugfs_minor = dentry;  in drbd_debugfs_device_attr()
830 	dentry = debugfs_create_file(#name, S_IRUSR|S_IRGRP,	\  in drbd_debugfs_device_attr()
833 	if (IS_ERR_OR_NULL(dentry))				\  in drbd_debugfs_device_attr()
835 	device->debugfs_vol_ ## name = dentry;			\  in drbd_debugfs_device_attr()
862 	struct dentry *conn_dir = peer_device->connection->debugfs_conn;  in drbd_debugfs_peer_device_add()
863 	struct dentry *dentry;  in drbd_debugfs_peer_device_add()  local
870 	dentry = debugfs_create_dir(vnr_buf, conn_dir);  in drbd_debugfs_peer_device_add()
871 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_peer_device_add()
873 	peer_device->debugfs_peer_dev = dentry;  in drbd_debugfs_peer_device_add()
921 	struct dentry *dentry;  in drbd_debugfs_init()  local
923 	dentry = debugfs_create_dir("drbd", NULL);  in drbd_debugfs_init()
924 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_init()
926 	drbd_debugfs_root = dentry;  in drbd_debugfs_init()
928 	dentry = debugfs_create_file("version", 0444, drbd_debugfs_root, NULL, &drbd_version_fops);  in drbd_debugfs_init()
929 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_init()
931 	drbd_debugfs_version = dentry;  in drbd_debugfs_init()
933 	dentry = debugfs_create_dir("resources", drbd_debugfs_root);  in drbd_debugfs_init()
934 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_init()
936 	drbd_debugfs_resources = dentry;  in drbd_debugfs_init()
938 	dentry = debugfs_create_dir("minors", drbd_debugfs_root);  in drbd_debugfs_init()
939 	if (IS_ERR_OR_NULL(dentry))  in drbd_debugfs_init()
941 	drbd_debugfs_minors = dentry;  in drbd_debugfs_init()
946 	if (dentry)  in drbd_debugfs_init()
947 		return PTR_ERR(dentry);  in drbd_debugfs_init()