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coda_psdev.h
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1 #ifndef __CODA_PSDEV_H
2 #define __CODA_PSDEV_H
3 
4 #include <linux/backing-dev.h>
5 #include <linux/mutex.h>
6 #include <uapi/linux/coda_psdev.h>
7 
8 struct kstatfs;
9 
10 /* communication pending/processing queues */
11 struct venus_comm {
12  u_long vc_seq;
13  wait_queue_head_t vc_waitq; /* Venus wait queue */
14  struct list_head vc_pending;
15  struct list_head vc_processing;
16  int vc_inuse;
17  struct super_block *vc_sb;
18  struct backing_dev_info bdi;
19  struct mutex vc_mutex;
20 };
21 
22 
23 static inline struct venus_comm *coda_vcp(struct super_block *sb)
24 {
25  return (struct venus_comm *)((sb)->s_fs_info);
26 }
27 
28 /* upcalls */
29 int venus_rootfid(struct super_block *sb, struct CodaFid *fidp);
30 int venus_getattr(struct super_block *sb, struct CodaFid *fid,
31  struct coda_vattr *attr);
32 int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *);
33 int venus_lookup(struct super_block *sb, struct CodaFid *fid,
34  const char *name, int length, int *type,
35  struct CodaFid *resfid);
36 int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
37  vuid_t uid);
38 int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,
39  struct file **f);
40 int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid,
41  const char *name, int length,
42  struct CodaFid *newfid, struct coda_vattr *attrs);
43 int venus_create(struct super_block *sb, struct CodaFid *dirfid,
44  const char *name, int length, int excl, int mode,
45  struct CodaFid *newfid, struct coda_vattr *attrs) ;
46 int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid,
47  const char *name, int length);
48 int venus_remove(struct super_block *sb, struct CodaFid *dirfid,
49  const char *name, int length);
50 int venus_readlink(struct super_block *sb, struct CodaFid *fid,
51  char *buffer, int *length);
52 int venus_rename(struct super_block *, struct CodaFid *new_fid,
53  struct CodaFid *old_fid, size_t old_length,
54  size_t new_length, const char *old_name,
55  const char *new_name);
56 int venus_link(struct super_block *sb, struct CodaFid *fid,
57  struct CodaFid *dirfid, const char *name, int len );
58 int venus_symlink(struct super_block *sb, struct CodaFid *fid,
59  const char *name, int len, const char *symname, int symlen);
60 int venus_access(struct super_block *sb, struct CodaFid *fid, int mask);
61 int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
62  unsigned int cmd, struct PioctlData *data);
63 int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out);
64 int venus_fsync(struct super_block *sb, struct CodaFid *fid);
65 int venus_statfs(struct dentry *dentry, struct kstatfs *sfs);
66 
67 /*
68  * Statistics
69  */
70 
71 extern struct venus_comm coda_comms[];
72 #endif
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