#ifndef __CODA_PSDEV_H#define __CODA_PSDEV_H #include <linux/magic.h> #define CODA_PSDEV_MAJOR 67#define MAX_CODADEVS  5	   /* how many do we allow */ #ifdef __KERNEL__#include <linux/backing-dev.h>#include <linux/mutex.h> struct kstatfs; /* communication pending/processing queues */struct venus_comm {	u_long		    vc_seq;	wait_queue_head_t   vc_waitq; /* Venus wait queue */	struct list_head    vc_pending;	struct list_head    vc_processing;	int                 vc_inuse;	struct super_block *vc_sb;	struct backing_dev_info bdi;	struct mutex	    vc_mutex;};  static inline struct venus_comm *coda_vcp(struct super_block *sb){	return (struct venus_comm *)((sb)->s_fs_info);} /* upcalls */int venus_rootfid(struct super_block *sb, struct CodaFid *fidp);int venus_getattr(struct super_block *sb, struct CodaFid *fid,		  struct coda_vattr *attr);int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *);int venus_lookup(struct super_block *sb, struct CodaFid *fid, 		 const char *name, int length, int *type, 		 struct CodaFid *resfid);int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,		vuid_t uid);int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,	       struct file **f);int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid, 		const char *name, int length, 		struct CodaFid *newfid, struct coda_vattr *attrs);int venus_create(struct super_block *sb, struct CodaFid *dirfid, 		 const char *name, int length, int excl, int mode,		 struct CodaFid *newfid, struct coda_vattr *attrs) ;int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid, 		const char *name, int length);int venus_remove(struct super_block *sb, struct CodaFid *dirfid, 		 const char *name, int length);int venus_readlink(struct super_block *sb, struct CodaFid *fid, 		   char *buffer, int *length);int venus_rename(struct super_block *, struct CodaFid *new_fid, 		 struct CodaFid *old_fid, size_t old_length, 		 size_t new_length, const char *old_name, 		 const char *new_name);int venus_link(struct super_block *sb, struct CodaFid *fid, 		  struct CodaFid *dirfid, const char *name, int len );int venus_symlink(struct super_block *sb, struct CodaFid *fid,		  const char *name, int len, const char *symname, int symlen);int venus_access(struct super_block *sb, struct CodaFid *fid, int mask);int venus_pioctl(struct super_block *sb, struct CodaFid *fid,		 unsigned int cmd, struct PioctlData *data);int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out);int venus_fsync(struct super_block *sb, struct CodaFid *fid);int venus_statfs(struct dentry *dentry, struct kstatfs *sfs); /* * Statistics */ extern struct venus_comm coda_comms[];#endif /* __KERNEL__ */ /* messages between coda filesystem in kernel and Venus */struct upc_req {	struct list_head    uc_chain;	caddr_t	            uc_data;	u_short	            uc_flags;	u_short             uc_inSize;  /* Size is at most 5000 bytes */	u_short	            uc_outSize;	u_short	            uc_opcode;  /* copied from data to save lookup */	int		    uc_unique;	wait_queue_head_t   uc_sleep;   /* process' wait queue */}; #define CODA_REQ_ASYNC  0x1#define CODA_REQ_READ   0x2#define CODA_REQ_WRITE  0x4#define CODA_REQ_ABORT  0x8 #endif