4 #include <linux/magic.h>
6 #define CODA_PSDEV_MAJOR 67
7 #define MAX_CODADEVS 5 /* how many do we allow */
10 #include <linux/backing-dev.h>
14 /* communication pending/processing queues */
17 wait_queue_head_t vc_waitq; /* Venus wait queue */
18 struct list_head vc_pending;
19 struct list_head vc_processing;
21 struct super_block *vc_sb;
22 struct backing_dev_info bdi;
26 static inline struct venus_comm *coda_vcp(struct super_block *sb)
28 return (struct venus_comm *)((sb)->s_fs_info);
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,
41 int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,
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);
74 extern struct venus_comm coda_comms[];
75 #endif /* __KERNEL__ */
77 /* messages between coda filesystem in kernel and Venus */
79 struct list_head uc_chain;
82 u_short uc_inSize; /* Size is at most 5000 bytes */
84 u_short uc_opcode; /* copied from data to save lookup */
86 wait_queue_head_t uc_sleep; /* process' wait queue */