4 #define CODA_PSDEV_MAJOR 67
5 #define MAX_CODADEVS 5 /* how many do we allow */
7 #define CODA_SUPER_MAGIC 0x73757245
11 struct venus_comm
* sbi_vcomm
;
12 struct super_block
*sbi_sb
;
13 struct list_head sbi_cihead
;
16 /* communication pending/processing queues */
19 wait_queue_head_t vc_waitq
; /* Venus wait queue */
20 struct list_head vc_pending
;
21 struct list_head vc_processing
;
23 struct super_block
*vc_sb
;
27 static inline struct coda_sb_info
*coda_sbp(struct super_block
*sb
)
29 return ((struct coda_sb_info
*)((sb
)->u
.generic_sbp
));
34 int venus_rootfid(struct super_block
*sb
, ViceFid
*fidp
);
35 int venus_getattr(struct super_block
*sb
, struct ViceFid
*fid
,
36 struct coda_vattr
*attr
);
37 int venus_setattr(struct super_block
*, struct ViceFid
*,
39 int venus_lookup(struct super_block
*sb
, struct ViceFid
*fid
,
40 const char *name
, int length
, int *type
,
41 struct ViceFid
*resfid
);
42 int venus_release(struct super_block
*sb
, struct ViceFid
*fid
, int flags
,
44 int venus_open(struct super_block
*sb
, struct ViceFid
*fid
,
45 int flags
, ino_t
*ino
, dev_t
*dev
);
46 int venus_mkdir(struct super_block
*sb
, struct ViceFid
*dirfid
,
47 const char *name
, int length
,
48 struct ViceFid
*newfid
, struct coda_vattr
*attrs
);
49 int venus_create(struct super_block
*sb
, struct ViceFid
*dirfid
,
50 const char *name
, int length
, int excl
, int mode
, int rdev
,
51 struct ViceFid
*newfid
, struct coda_vattr
*attrs
) ;
52 int venus_rmdir(struct super_block
*sb
, struct ViceFid
*dirfid
,
53 const char *name
, int length
);
54 int venus_remove(struct super_block
*sb
, struct ViceFid
*dirfid
,
55 const char *name
, int length
);
56 int venus_readlink(struct super_block
*sb
, struct ViceFid
*fid
,
57 char *buffer
, int *length
);
58 int venus_rename(struct super_block
*, struct ViceFid
*new_fid
,
59 struct ViceFid
*old_fid
, size_t old_length
,
60 size_t new_length
, const char *old_name
,
61 const char *new_name
);
62 int venus_link(struct super_block
*sb
, struct ViceFid
*fid
,
63 struct ViceFid
*dirfid
, const char *name
, int len
);
64 int venus_symlink(struct super_block
*sb
, struct ViceFid
*fid
,
65 const char *name
, int len
, const char *symname
, int symlen
);
66 int venus_access(struct super_block
*sb
, struct ViceFid
*fid
, int mask
);
67 int venus_pioctl(struct super_block
*sb
, struct ViceFid
*fid
,
68 unsigned int cmd
, struct PioctlData
*data
);
69 int coda_downcall(int opcode
, union outputArgs
*out
, struct super_block
*sb
);
70 int venus_fsync(struct super_block
*sb
, struct ViceFid
*fid
);
71 int venus_statfs(struct super_block
*sb
, struct statfs
*sfs
);
74 /* messages between coda filesystem in kernel and Venus */
76 extern unsigned long coda_timeout
;
78 struct list_head uc_chain
;
81 u_short uc_inSize
; /* Size is at most 5000 bytes */
83 u_short uc_opcode
; /* copied from data to save lookup */
85 wait_queue_head_t uc_sleep
; /* process' wait queue */
86 unsigned long uc_posttime
;
98 struct coda_upcallstats
{
99 int ncalls
; /* client requests */
100 int nbadcalls
; /* upcall failures */
101 int reqs
[CODA_NCALLS
]; /* count of each request */
104 extern struct coda_upcallstats coda_callstats
;
105 extern struct venus_comm coda_comms
[];
107 static inline void clstats(int opcode
)
109 coda_callstats
.ncalls
++;
110 if ( (0 <= opcode
) && (opcode
<= CODA_NCALLS
) )
111 coda_callstats
.reqs
[opcode
]++;
113 printk("clstats called with bad opcode %d\n", opcode
);
116 static inline void badclstats(void)
118 coda_callstats
.nbadcalls
++;