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1 | #ifndef __CODA_PSDEV_H |
2 | #define __CODA_PSDEV_H |
3 | |
4 | #include <linux/magic.h> |
5 | |
6 | #define CODA_PSDEV_MAJOR 67 |
7 | #define MAX_CODADEVS 5 /* how many do we allow */ |
8 | |
9 | #ifdef __KERNEL__ |
10 | #include <linux/backing-dev.h> |
11 | |
12 | struct kstatfs; |
13 | |
14 | /* communication pending/processing queues */ |
15 | struct venus_comm { |
16 | u_long vc_seq; |
17 | wait_queue_head_t vc_waitq; /* Venus wait queue */ |
18 | struct list_head vc_pending; |
19 | struct list_head vc_processing; |
20 | int vc_inuse; |
21 | struct super_block *vc_sb; |
22 | struct backing_dev_info bdi; |
23 | }; |
24 | |
25 | |
26 | static inline struct venus_comm *coda_vcp(struct super_block *sb) |
27 | { |
28 | return (struct venus_comm *)((sb)->s_fs_info); |
29 | } |
30 | |
31 | /* upcalls */ |
32 | int venus_rootfid(struct super_block *sb, struct CodaFid *fidp); |
33 | int venus_getattr(struct super_block *sb, struct CodaFid *fid, |
34 | struct coda_vattr *attr); |
35 | int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *); |
36 | int venus_lookup(struct super_block *sb, struct CodaFid *fid, |
37 | const char *name, int length, int *type, |
38 | struct CodaFid *resfid); |
39 | int venus_close(struct super_block *sb, struct CodaFid *fid, int flags, |
40 | vuid_t uid); |
41 | int venus_open(struct super_block *sb, struct CodaFid *fid, int flags, |
42 | struct file **f); |
43 | int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid, |
44 | const char *name, int length, |
45 | struct CodaFid *newfid, struct coda_vattr *attrs); |
46 | int venus_create(struct super_block *sb, struct CodaFid *dirfid, |
47 | const char *name, int length, int excl, int mode, |
48 | struct CodaFid *newfid, struct coda_vattr *attrs) ; |
49 | int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid, |
50 | const char *name, int length); |
51 | int venus_remove(struct super_block *sb, struct CodaFid *dirfid, |
52 | const char *name, int length); |
53 | int venus_readlink(struct super_block *sb, struct CodaFid *fid, |
54 | char *buffer, int *length); |
55 | int venus_rename(struct super_block *, struct CodaFid *new_fid, |
56 | struct CodaFid *old_fid, size_t old_length, |
57 | size_t new_length, const char *old_name, |
58 | const char *new_name); |
59 | int venus_link(struct super_block *sb, struct CodaFid *fid, |
60 | struct CodaFid *dirfid, const char *name, int len ); |
61 | int venus_symlink(struct super_block *sb, struct CodaFid *fid, |
62 | const char *name, int len, const char *symname, int symlen); |
63 | int venus_access(struct super_block *sb, struct CodaFid *fid, int mask); |
64 | int venus_pioctl(struct super_block *sb, struct CodaFid *fid, |
65 | unsigned int cmd, struct PioctlData *data); |
66 | int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb); |
67 | int venus_fsync(struct super_block *sb, struct CodaFid *fid); |
68 | int venus_statfs(struct dentry *dentry, struct kstatfs *sfs); |
69 | |
70 | /* |
71 | * Statistics |
72 | */ |
73 | |
74 | extern struct venus_comm coda_comms[]; |
75 | #endif /* __KERNEL__ */ |
76 | |
77 | /* messages between coda filesystem in kernel and Venus */ |
78 | struct upc_req { |
79 | struct list_head uc_chain; |
80 | caddr_t uc_data; |
81 | u_short uc_flags; |
82 | u_short uc_inSize; /* Size is at most 5000 bytes */ |
83 | u_short uc_outSize; |
84 | u_short uc_opcode; /* copied from data to save lookup */ |
85 | int uc_unique; |
86 | wait_queue_head_t uc_sleep; /* process' wait queue */ |
87 | }; |
88 | |
89 | #define REQ_ASYNC 0x1 |
90 | #define REQ_READ 0x2 |
91 | #define REQ_WRITE 0x4 |
92 | #define REQ_ABORT 0x8 |
93 | |
94 | #endif |
95 |
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Tags:
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