Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
9struct kstatfs;
10
11struct coda_sb_info
12{
13 struct venus_comm *sbi_vcomm;
14};
15
16/* communication pending/processing queues */
17struct venus_comm {
18 u_long vc_seq;
19 wait_queue_head_t vc_waitq; /* Venus wait queue */
20 struct list_head vc_pending;
21 struct list_head vc_processing;
22 int vc_inuse;
23 struct super_block *vc_sb;
24};
25
26
27static inline struct coda_sb_info *coda_sbp(struct super_block *sb)
28{
29 return ((struct coda_sb_info *)((sb)->s_fs_info));
30}
31
32
33/* upcalls */
34int venus_rootfid(struct super_block *sb, struct CodaFid *fidp);
35int venus_getattr(struct super_block *sb, struct CodaFid *fid,
36 struct coda_vattr *attr);
37int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *);
38int venus_lookup(struct super_block *sb, struct CodaFid *fid,
39 const char *name, int length, int *type,
40 struct CodaFid *resfid);
41int venus_store(struct super_block *sb, struct CodaFid *fid, int flags,
42 vuid_t uid);
43int venus_release(struct super_block *sb, struct CodaFid *fid, int flags);
44int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
45 vuid_t uid);
46int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,
47 struct file **f);
48int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid,
49 const char *name, int length,
50 struct CodaFid *newfid, struct coda_vattr *attrs);
51int venus_create(struct super_block *sb, struct CodaFid *dirfid,
52 const char *name, int length, int excl, int mode,
53 struct CodaFid *newfid, struct coda_vattr *attrs) ;
54int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid,
55 const char *name, int length);
56int venus_remove(struct super_block *sb, struct CodaFid *dirfid,
57 const char *name, int length);
58int venus_readlink(struct super_block *sb, struct CodaFid *fid,
59 char *buffer, int *length);
60int venus_rename(struct super_block *, struct CodaFid *new_fid,
61 struct CodaFid *old_fid, size_t old_length,
62 size_t new_length, const char *old_name,
63 const char *new_name);
64int venus_link(struct super_block *sb, struct CodaFid *fid,
65 struct CodaFid *dirfid, const char *name, int len );
66int venus_symlink(struct super_block *sb, struct CodaFid *fid,
67 const char *name, int len, const char *symname, int symlen);
68int venus_access(struct super_block *sb, struct CodaFid *fid, int mask);
69int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
70 unsigned int cmd, struct PioctlData *data);
71int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb);
72int venus_fsync(struct super_block *sb, struct CodaFid *fid);
73int venus_statfs(struct dentry *dentry, struct kstatfs *sfs);
74
75
76/* messages between coda filesystem in kernel and Venus */
77extern int coda_hard;
78extern unsigned long coda_timeout;
79struct upc_req {
80 struct list_head uc_chain;
81 caddr_t uc_data;
82 u_short uc_flags;
83 u_short uc_inSize; /* Size is at most 5000 bytes */
84 u_short uc_outSize;
85 u_short uc_opcode; /* copied from data to save lookup */
86 int uc_unique;
87 wait_queue_head_t uc_sleep; /* process' wait queue */
88 unsigned long uc_posttime;
89};
90
91#define REQ_ASYNC 0x1
92#define REQ_READ 0x2
93#define REQ_WRITE 0x4
94#define REQ_ABORT 0x8
95
96
97/*
98 * Statistics
99 */
100
101extern struct venus_comm coda_comms[];
102
103#endif