blob: 1c17446f1afec93b684f3bb796f600ef5036f855 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/*
* coda_fs_i.h
*
* Copyright (C) 1998 Carnegie Mellon University
*
*/
#ifndef _LINUX_CODA_FS_I
#define _LINUX_CODA_FS_I
#include <linux/types.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/coda.h>
/*
* coda fs inode data
* c_lock protects accesses to c_flags, c_mapcount, c_cached_epoch, c_uid and
* c_cached_perm.
* vfs_inode is set only when the inode is created and never changes.
* c_fid is set when the inode is created and should be considered immutable.
*/
struct coda_inode_info {
struct CodaFid c_fid; /* Coda identifier */
u_short c_flags; /* flags (see below) */
unsigned int c_mapcount; /* nr of times this inode is mapped */
unsigned int c_cached_epoch; /* epoch for cached permissions */
vuid_t c_uid; /* fsuid for cached permissions */
unsigned int c_cached_perm; /* cached access permissions */
spinlock_t c_lock;
struct inode vfs_inode;
};
/*
* coda fs file private data
*/
#define CODA_MAGIC 0xC0DAC0DA
struct coda_file_info {
int cfi_magic; /* magic number */
struct file *cfi_container; /* container file for this cnode */
unsigned int cfi_mapcount; /* nr of times this file is mapped */
};
#define CODA_FTOC(file) ((struct coda_file_info *)((file)->private_data))
/* flags */
#define C_VATTR 0x1 /* Validity of vattr in inode */
#define C_FLUSH 0x2 /* used after a flush */
#define C_DYING 0x4 /* from venus (which died) */
#define C_PURGE 0x8
int coda_cnode_make(struct inode **, struct CodaFid *, struct super_block *);
struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
struct inode *coda_cnode_makectl(struct super_block *sb);
struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *);
#endif
|
