forked from Minki/linux
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
/* vnode.h: AFS vnode record
|
|
*
|
|
* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
|
|
* Written by David Howells (dhowells@redhat.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef _LINUX_AFS_VNODE_H
|
|
#define _LINUX_AFS_VNODE_H
|
|
|
|
#include <linux/fs.h>
|
|
#include "server.h"
|
|
#include "kafstimod.h"
|
|
#include "cache.h"
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
struct afs_rxfs_fetch_descriptor;
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* vnode catalogue entry
|
|
*/
|
|
struct afs_cache_vnode
|
|
{
|
|
afs_vnodeid_t vnode_id; /* vnode ID */
|
|
unsigned vnode_unique; /* vnode ID uniquifier */
|
|
afs_dataversion_t data_version; /* data version */
|
|
};
|
|
|
|
#ifdef AFS_CACHING_SUPPORT
|
|
extern struct cachefs_index_def afs_vnode_cache_index_def;
|
|
#endif
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* AFS inode private data
|
|
*/
|
|
struct afs_vnode
|
|
{
|
|
struct inode vfs_inode; /* the VFS's inode record */
|
|
|
|
struct afs_volume *volume; /* volume on which vnode resides */
|
|
struct afs_fid fid; /* the file identifier for this inode */
|
|
struct afs_file_status status; /* AFS status info for this file */
|
|
#ifdef AFS_CACHING_SUPPORT
|
|
struct cachefs_cookie *cache; /* caching cookie */
|
|
#endif
|
|
|
|
wait_queue_head_t update_waitq; /* status fetch waitqueue */
|
|
unsigned update_cnt; /* number of outstanding ops that will update the
|
|
* status */
|
|
spinlock_t lock; /* waitqueue/flags lock */
|
|
unsigned flags;
|
|
#define AFS_VNODE_CHANGED 0x00000001 /* set if vnode reported changed by callback */
|
|
#define AFS_VNODE_DELETED 0x00000002 /* set if vnode deleted on server */
|
|
#define AFS_VNODE_MOUNTPOINT 0x00000004 /* set if vnode is a mountpoint symlink */
|
|
|
|
/* outstanding callback notification on this file */
|
|
struct afs_server *cb_server; /* server that made the current promise */
|
|
struct list_head cb_link; /* link in server's promises list */
|
|
struct list_head cb_hash_link; /* link in master callback hash */
|
|
struct afs_timer cb_timeout; /* timeout on promise */
|
|
unsigned cb_version; /* callback version */
|
|
unsigned cb_expiry; /* callback expiry time */
|
|
afs_callback_type_t cb_type; /* type of callback */
|
|
};
|
|
|
|
static inline struct afs_vnode *AFS_FS_I(struct inode *inode)
|
|
{
|
|
return container_of(inode,struct afs_vnode,vfs_inode);
|
|
}
|
|
|
|
static inline struct inode *AFS_VNODE_TO_I(struct afs_vnode *vnode)
|
|
{
|
|
return &vnode->vfs_inode;
|
|
}
|
|
|
|
extern int afs_vnode_fetch_status(struct afs_vnode *vnode);
|
|
|
|
extern int afs_vnode_fetch_data(struct afs_vnode *vnode,
|
|
struct afs_rxfs_fetch_descriptor *desc);
|
|
|
|
extern int afs_vnode_give_up_callback(struct afs_vnode *vnode);
|
|
|
|
extern struct afs_timer_ops afs_vnode_cb_timed_out_ops;
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* _LINUX_AFS_VNODE_H */
|