diff options
Diffstat (limited to 'fs/afs/vnode.h')
-rw-r--r-- | fs/afs/vnode.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/fs/afs/vnode.h b/fs/afs/vnode.h new file mode 100644 index 000000000000..b86a97102e8b --- /dev/null +++ b/fs/afs/vnode.h | |||
@@ -0,0 +1,94 @@ | |||
1 | /* vnode.h: AFS vnode record | ||
2 | * | ||
3 | * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. | ||
4 | * Written by David Howells (dhowells@redhat.com) | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU General Public License | ||
8 | * as published by the Free Software Foundation; either version | ||
9 | * 2 of the License, or (at your option) any later version. | ||
10 | */ | ||
11 | |||
12 | #ifndef _LINUX_AFS_VNODE_H | ||
13 | #define _LINUX_AFS_VNODE_H | ||
14 | |||
15 | #include <linux/fs.h> | ||
16 | #include "server.h" | ||
17 | #include "kafstimod.h" | ||
18 | #include "cache.h" | ||
19 | |||
20 | #ifdef __KERNEL__ | ||
21 | |||
22 | struct afs_rxfs_fetch_descriptor; | ||
23 | |||
24 | /*****************************************************************************/ | ||
25 | /* | ||
26 | * vnode catalogue entry | ||
27 | */ | ||
28 | struct afs_cache_vnode | ||
29 | { | ||
30 | afs_vnodeid_t vnode_id; /* vnode ID */ | ||
31 | unsigned vnode_unique; /* vnode ID uniquifier */ | ||
32 | afs_dataversion_t data_version; /* data version */ | ||
33 | }; | ||
34 | |||
35 | #ifdef AFS_CACHING_SUPPORT | ||
36 | extern struct cachefs_index_def afs_vnode_cache_index_def; | ||
37 | #endif | ||
38 | |||
39 | /*****************************************************************************/ | ||
40 | /* | ||
41 | * AFS inode private data | ||
42 | */ | ||
43 | struct afs_vnode | ||
44 | { | ||
45 | struct inode vfs_inode; /* the VFS's inode record */ | ||
46 | |||
47 | struct afs_volume *volume; /* volume on which vnode resides */ | ||
48 | struct afs_fid fid; /* the file identifier for this inode */ | ||
49 | struct afs_file_status status; /* AFS status info for this file */ | ||
50 | #ifdef AFS_CACHING_SUPPORT | ||
51 | struct cachefs_cookie *cache; /* caching cookie */ | ||
52 | #endif | ||
53 | |||
54 | wait_queue_head_t update_waitq; /* status fetch waitqueue */ | ||
55 | unsigned update_cnt; /* number of outstanding ops that will update the | ||
56 | * status */ | ||
57 | spinlock_t lock; /* waitqueue/flags lock */ | ||
58 | unsigned flags; | ||
59 | #define AFS_VNODE_CHANGED 0x00000001 /* set if vnode reported changed by callback */ | ||
60 | #define AFS_VNODE_DELETED 0x00000002 /* set if vnode deleted on server */ | ||
61 | #define AFS_VNODE_MOUNTPOINT 0x00000004 /* set if vnode is a mountpoint symlink */ | ||
62 | |||
63 | /* outstanding callback notification on this file */ | ||
64 | struct afs_server *cb_server; /* server that made the current promise */ | ||
65 | struct list_head cb_link; /* link in server's promises list */ | ||
66 | struct list_head cb_hash_link; /* link in master callback hash */ | ||
67 | struct afs_timer cb_timeout; /* timeout on promise */ | ||
68 | unsigned cb_version; /* callback version */ | ||
69 | unsigned cb_expiry; /* callback expiry time */ | ||
70 | afs_callback_type_t cb_type; /* type of callback */ | ||
71 | }; | ||
72 | |||
73 | static inline struct afs_vnode *AFS_FS_I(struct inode *inode) | ||
74 | { | ||
75 | return container_of(inode,struct afs_vnode,vfs_inode); | ||
76 | } | ||
77 | |||
78 | static inline struct inode *AFS_VNODE_TO_I(struct afs_vnode *vnode) | ||
79 | { | ||
80 | return &vnode->vfs_inode; | ||
81 | } | ||
82 | |||
83 | extern int afs_vnode_fetch_status(struct afs_vnode *vnode); | ||
84 | |||
85 | extern int afs_vnode_fetch_data(struct afs_vnode *vnode, | ||
86 | struct afs_rxfs_fetch_descriptor *desc); | ||
87 | |||
88 | extern int afs_vnode_give_up_callback(struct afs_vnode *vnode); | ||
89 | |||
90 | extern struct afs_timer_ops afs_vnode_cb_timed_out_ops; | ||
91 | |||
92 | #endif /* __KERNEL__ */ | ||
93 | |||
94 | #endif /* _LINUX_AFS_VNODE_H */ | ||