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 9#ifdef __KERNEL__ 10#include <linux/backing-dev.h> 11 12struct kstatfs; 13 14/* communication pending/processing queues */ 15struct venus_comm { 16 u_long vc_seq; 17 wait_queue_head_t vc_waitq; /* Venus wait queue */ 18 struct list_head vc_pending; 19 struct list_head vc_processing; 20 int vc_inuse; 21 struct super_block *vc_sb; 22 struct backing_dev_info bdi; 23}; 24 25 26static inline struct venus_comm *coda_vcp(struct super_block *sb) 27{ 28 return (struct venus_comm *)((sb)->s_fs_info); 29} 30 31/* upcalls */ 32int venus_rootfid(struct super_block *sb, struct CodaFid *fidp); 33int venus_getattr(struct super_block *sb, struct CodaFid *fid, 34 struct coda_vattr *attr); 35int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *); 36int venus_lookup(struct super_block *sb, struct CodaFid *fid, 37 const char *name, int length, int *type, 38 struct CodaFid *resfid); 39int venus_close(struct super_block *sb, struct CodaFid *fid, int flags, 40 vuid_t uid); 41int venus_open(struct super_block *sb, struct CodaFid *fid, int flags, 42 struct file **f); 43int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid, 44 const char *name, int length, 45 struct CodaFid *newfid, struct coda_vattr *attrs); 46int 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) ; 49int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid, 50 const char *name, int length); 51int venus_remove(struct super_block *sb, struct CodaFid *dirfid, 52 const char *name, int length); 53int venus_readlink(struct super_block *sb, struct CodaFid *fid, 54 char *buffer, int *length); 55int 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); 59int venus_link(struct super_block *sb, struct CodaFid *fid, 60 struct CodaFid *dirfid, const char *name, int len ); 61int venus_symlink(struct super_block *sb, struct CodaFid *fid, 62 const char *name, int len, const char *symname, int symlen); 63int venus_access(struct super_block *sb, struct CodaFid *fid, int mask); 64int venus_pioctl(struct super_block *sb, struct CodaFid *fid, 65 unsigned int cmd, struct PioctlData *data); 66int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb); 67int venus_fsync(struct super_block *sb, struct CodaFid *fid); 68int venus_statfs(struct dentry *dentry, struct kstatfs *sfs); 69 70/* 71 * Statistics 72 */ 73 74extern struct venus_comm coda_comms[]; 75#endif /* __KERNEL__ */ 76 77/* messages between coda filesystem in kernel and Venus */ 78struct upc_req { 79 struct list_head uc_chain; 80 caddr_t uc_data; 81 u_short uc_flags; 82 u_short uc_inSize; /* Size is at most 5000 bytes */ 83 u_short uc_outSize; 84 u_short uc_opcode; /* copied from data to save lookup */ 85 int uc_unique; 86 wait_queue_head_t uc_sleep; /* process' wait queue */ 87}; 88 89#define CODA_REQ_ASYNC 0x1 90#define CODA_REQ_READ 0x2 91#define CODA_REQ_WRITE 0x4 92#define CODA_REQ_ABORT 0x8 93 94#endif 95