Commit | Line | Data |
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1da177e4 LT |
1 | /* |
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 | |
7 | * layer code. | |
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 | |
13 | */ | |
1da177e4 LT |
14 | #ifndef LINUX_NBD_H |
15 | #define LINUX_NBD_H | |
16 | ||
1da177e4 | 17 | |
4b2f0260 | 18 | #include <linux/wait.h> |
82d4dc5a | 19 | #include <linux/mutex.h> |
607ca46e | 20 | #include <uapi/linux/nbd.h> |
4b2f0260 | 21 | |
4b2f0260 HX |
22 | struct request; |
23 | ||
1da177e4 LT |
24 | struct nbd_device { |
25 | int flags; | |
26 | int harderror; /* Code of hard error */ | |
e2511578 | 27 | struct socket * sock; /* If == NULL, device is not ready, yet */ |
1da177e4 | 28 | int magic; |
4b2f0260 | 29 | |
1da177e4 | 30 | spinlock_t queue_lock; |
48cf6061 | 31 | struct list_head queue_head; /* Requests waiting result */ |
4b2f0260 HX |
32 | struct request *active_req; |
33 | wait_queue_head_t active_wq; | |
48cf6061 LV |
34 | struct list_head waiting_queue; /* Requests to be sent */ |
35 | wait_queue_head_t waiting_wq; | |
4b2f0260 | 36 | |
82d4dc5a | 37 | struct mutex tx_lock; |
1da177e4 LT |
38 | struct gendisk *disk; |
39 | int blksize; | |
40 | u64 bytesize; | |
6b39bb65 | 41 | pid_t pid; /* pid of nbd-client, if attached */ |
7fdfd406 | 42 | int xmit_timeout; |
c378f70a | 43 | int disconnect; /* a disconnect has been requested by user */ |
1da177e4 LT |
44 | }; |
45 | ||
46 | #endif |