2 * 1999 Copyright (C) Pavel Machek, pavel@ucw.cz. This code is GPL.
3 * 1999/11/04 Copyright (C) 1999 VMware, Inc. (Regis "HPReg" Duchesne)
4 * Made nbd_end_request() use the io_request_lock
5 * 2001 Copyright (C) Steven Whitehouse
6 * New nbd_end_request() for compatibility with new linux block
8 * 2003/06/24 Louis D. Langholtz <ldl@aros.net>
9 * Removed unneeded blksize_bits field from nbd_device struct.
10 * Cleanup PARANOIA usage & code.
11 * 2004/02/19 Paul Clements
12 * Removed PARANOIA, plus various cleanup and comments
18 #include <linux/wait.h>
19 #include <linux/mutex.h>
20 #include <uapi/linux/nbd.h>
26 int harderror; /* Code of hard error */
28 struct file * file; /* If == NULL, device is not ready, yet */
31 spinlock_t queue_lock;
32 struct list_head queue_head; /* Requests waiting result */
33 struct request *active_req;
34 wait_queue_head_t active_wq;
35 struct list_head waiting_queue; /* Requests to be sent */
36 wait_queue_head_t waiting_wq;
42 pid_t pid; /* pid of nbd-client, if attached */
44 int disconnect; /* a disconnect has been requested by user */