#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> 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; }; 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(int opcode, union outputArgs *out, struct super_block *sb); 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 REQ_ASYNC 0x1 #define REQ_READ 0x2 #define REQ_WRITE 0x4 #define REQ_ABORT 0x8 #endif