coda_psdev.h 3.4 KB

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  1. #ifndef __CODA_PSDEV_H
  2. #define __CODA_PSDEV_H
  3. #include <linux/magic.h>
  4. #define CODA_PSDEV_MAJOR 67
  5. #define MAX_CODADEVS 5 /* how many do we allow */
  6. struct kstatfs;
  7. struct coda_sb_info
  8. {
  9. struct venus_comm *sbi_vcomm;
  10. };
  11. /* communication pending/processing queues */
  12. struct venus_comm {
  13. u_long vc_seq;
  14. wait_queue_head_t vc_waitq; /* Venus wait queue */
  15. struct list_head vc_pending;
  16. struct list_head vc_processing;
  17. int vc_inuse;
  18. struct super_block *vc_sb;
  19. };
  20. static inline struct coda_sb_info *coda_sbp(struct super_block *sb)
  21. {
  22. return ((struct coda_sb_info *)((sb)->s_fs_info));
  23. }
  24. /* upcalls */
  25. int venus_rootfid(struct super_block *sb, struct CodaFid *fidp);
  26. int venus_getattr(struct super_block *sb, struct CodaFid *fid,
  27. struct coda_vattr *attr);
  28. int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *);
  29. int venus_lookup(struct super_block *sb, struct CodaFid *fid,
  30. const char *name, int length, int *type,
  31. struct CodaFid *resfid);
  32. int venus_store(struct super_block *sb, struct CodaFid *fid, int flags,
  33. vuid_t uid);
  34. int venus_release(struct super_block *sb, struct CodaFid *fid, int flags);
  35. int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
  36. vuid_t uid);
  37. int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,
  38. struct file **f);
  39. int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid,
  40. const char *name, int length,
  41. struct CodaFid *newfid, struct coda_vattr *attrs);
  42. int venus_create(struct super_block *sb, struct CodaFid *dirfid,
  43. const char *name, int length, int excl, int mode,
  44. struct CodaFid *newfid, struct coda_vattr *attrs) ;
  45. int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid,
  46. const char *name, int length);
  47. int venus_remove(struct super_block *sb, struct CodaFid *dirfid,
  48. const char *name, int length);
  49. int venus_readlink(struct super_block *sb, struct CodaFid *fid,
  50. char *buffer, int *length);
  51. int venus_rename(struct super_block *, struct CodaFid *new_fid,
  52. struct CodaFid *old_fid, size_t old_length,
  53. size_t new_length, const char *old_name,
  54. const char *new_name);
  55. int venus_link(struct super_block *sb, struct CodaFid *fid,
  56. struct CodaFid *dirfid, const char *name, int len );
  57. int venus_symlink(struct super_block *sb, struct CodaFid *fid,
  58. const char *name, int len, const char *symname, int symlen);
  59. int venus_access(struct super_block *sb, struct CodaFid *fid, int mask);
  60. int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
  61. unsigned int cmd, struct PioctlData *data);
  62. int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb);
  63. int venus_fsync(struct super_block *sb, struct CodaFid *fid);
  64. int venus_statfs(struct dentry *dentry, struct kstatfs *sfs);
  65. /* messages between coda filesystem in kernel and Venus */
  66. extern int coda_hard;
  67. extern unsigned long coda_timeout;
  68. struct upc_req {
  69. struct list_head uc_chain;
  70. caddr_t uc_data;
  71. u_short uc_flags;
  72. u_short uc_inSize; /* Size is at most 5000 bytes */
  73. u_short uc_outSize;
  74. u_short uc_opcode; /* copied from data to save lookup */
  75. int uc_unique;
  76. wait_queue_head_t uc_sleep; /* process' wait queue */
  77. unsigned long uc_posttime;
  78. };
  79. #define REQ_ASYNC 0x1
  80. #define REQ_READ 0x2
  81. #define REQ_WRITE 0x4
  82. #define REQ_ABORT 0x8
  83. /*
  84. * Statistics
  85. */
  86. extern struct venus_comm coda_comms[];
  87. #endif