4 #include <linux/backing-dev.h>
5 #include <linux/magic.h>
7 #define CODA_PSDEV_MAJOR 67
8 #define MAX_CODADEVS 5 /* how many do we allow */
13 /* communication pending/processing queues */
16 wait_queue_head_t vc_waitq; /* Venus wait queue */
17 struct list_head vc_pending;
18 struct list_head vc_processing;
20 struct super_block *vc_sb;
21 struct backing_dev_info bdi;
25 static inline struct venus_comm *coda_vcp(struct super_block *sb)
27 return (struct venus_comm *)((sb)->s_fs_info);
31 int venus_rootfid(struct super_block *sb, struct CodaFid *fidp);
32 int venus_getattr(struct super_block *sb, struct CodaFid *fid,
33 struct coda_vattr *attr);
34 int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *);
35 int venus_lookup(struct super_block *sb, struct CodaFid *fid,
36 const char *name, int length, int *type,
37 struct CodaFid *resfid);
38 int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
40 int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,
42 int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid,
43 const char *name, int length,
44 struct CodaFid *newfid, struct coda_vattr *attrs);
45 int venus_create(struct super_block *sb, struct CodaFid *dirfid,
46 const char *name, int length, int excl, int mode,
47 struct CodaFid *newfid, struct coda_vattr *attrs) ;
48 int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid,
49 const char *name, int length);
50 int venus_remove(struct super_block *sb, struct CodaFid *dirfid,
51 const char *name, int length);
52 int venus_readlink(struct super_block *sb, struct CodaFid *fid,
53 char *buffer, int *length);
54 int venus_rename(struct super_block *, struct CodaFid *new_fid,
55 struct CodaFid *old_fid, size_t old_length,
56 size_t new_length, const char *old_name,
57 const char *new_name);
58 int venus_link(struct super_block *sb, struct CodaFid *fid,
59 struct CodaFid *dirfid, const char *name, int len );
60 int venus_symlink(struct super_block *sb, struct CodaFid *fid,
61 const char *name, int len, const char *symname, int symlen);
62 int venus_access(struct super_block *sb, struct CodaFid *fid, int mask);
63 int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
64 unsigned int cmd, struct PioctlData *data);
65 int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb);
66 int venus_fsync(struct super_block *sb, struct CodaFid *fid);
67 int venus_statfs(struct dentry *dentry, struct kstatfs *sfs);
73 extern struct venus_comm coda_comms[];
74 #endif /* __KERNEL__ */
76 /* messages between coda filesystem in kernel and Venus */
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 */