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Diffstat (limited to 'include/linux/nbd.h')
| -rw-r--r-- | include/linux/nbd.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/include/linux/nbd.h b/include/linux/nbd.h new file mode 100644 index 000000000..ae4981ebd --- /dev/null +++ b/include/linux/nbd.h @@ -0,0 +1,47 @@ +/* + * 1999 Copyright (C) Pavel Machek, pavel@ucw.cz. This code is GPL. + * 1999/11/04 Copyright (C) 1999 VMware, Inc. (Regis "HPReg" Duchesne) + * Made nbd_end_request() use the io_request_lock + * 2001 Copyright (C) Steven Whitehouse + * New nbd_end_request() for compatibility with new linux block + * layer code. + * 2003/06/24 Louis D. Langholtz <ldl@aros.net> + * Removed unneeded blksize_bits field from nbd_device struct. + * Cleanup PARANOIA usage & code. + * 2004/02/19 Paul Clements + * Removed PARANOIA, plus various cleanup and comments + */ +#ifndef LINUX_NBD_H +#define LINUX_NBD_H + + +#include <linux/wait.h> +#include <linux/mutex.h> +#include <uapi/linux/nbd.h> + +struct request; + +struct nbd_device { + int flags; + int harderror; /* Code of hard error */ + struct socket * sock; + struct file * file; /* If == NULL, device is not ready, yet */ + int magic; + + spinlock_t queue_lock; + struct list_head queue_head; /* Requests waiting result */ + struct request *active_req; + wait_queue_head_t active_wq; + struct list_head waiting_queue; /* Requests to be sent */ + wait_queue_head_t waiting_wq; + + struct mutex tx_lock; + struct gendisk *disk; + int blksize; + u64 bytesize; + pid_t pid; /* pid of nbd-client, if attached */ + int xmit_timeout; + int disconnect; /* a disconnect has been requested by user */ +}; + +#endif |