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oasis-root

Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

pr.h (1630B)

    

  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. #ifndef _PR_H
  3. #define _PR_H
  5. #include <linux/types.h>
  7. enum pr_status {
  8. 	PR_STS_SUCCESS			= 0x0,
  9. 	/*
  10. 	 * The following error codes are based on SCSI, because the interface
  11. 	 * was originally created for it and has existing users.
  12. 	 */
  13. 	/* Generic device failure. */
  14. 	PR_STS_IOERR			= 0x2,
  15. 	PR_STS_RESERVATION_CONFLICT	= 0x18,
  16. 	/* Temporary path failure that can be retried. */
  17. 	PR_STS_RETRY_PATH_FAILURE	= 0xe0000,
  18. 	/* The request was failed due to a fast failure timer. */
  19. 	PR_STS_PATH_FAST_FAILED		= 0xf0000,
  20. 	/* The path cannot be reached and has been marked as failed. */
  21. 	PR_STS_PATH_FAILED		= 0x10000,
  22. };
  24. enum pr_type {
  25. 	PR_WRITE_EXCLUSIVE		= 1,
  26. 	PR_EXCLUSIVE_ACCESS		= 2,
  27. 	PR_WRITE_EXCLUSIVE_REG_ONLY	= 3,
  28. 	PR_EXCLUSIVE_ACCESS_REG_ONLY	= 4,
  29. 	PR_WRITE_EXCLUSIVE_ALL_REGS	= 5,
  30. 	PR_EXCLUSIVE_ACCESS_ALL_REGS	= 6,
  31. };
  33. struct pr_reservation {
  34. 	__u64	key;
  35. 	__u32	type;
  36. 	__u32	flags;
  37. };
  39. struct pr_registration {
  40. 	__u64	old_key;
  41. 	__u64	new_key;
  42. 	__u32	flags;
  43. 	__u32	__pad;
  44. };
  46. struct pr_preempt {
  47. 	__u64	old_key;
  48. 	__u64	new_key;
  49. 	__u32	type;
  50. 	__u32	flags;
  51. };
  53. struct pr_clear {
  54. 	__u64	key;
  55. 	__u32	flags;
  56. 	__u32	__pad;
  57. };
  59. #define PR_FL_IGNORE_KEY	(1 << 0)	/* ignore existing key */
  61. #define IOC_PR_REGISTER		_IOW('p', 200, struct pr_registration)
  62. #define IOC_PR_RESERVE		_IOW('p', 201, struct pr_reservation)
  63. #define IOC_PR_RELEASE		_IOW('p', 202, struct pr_reservation)
  64. #define IOC_PR_PREEMPT		_IOW('p', 203, struct pr_preempt)
  65. #define IOC_PR_PREEMPT_ABORT	_IOW('p', 204, struct pr_preempt)
  66. #define IOC_PR_CLEAR		_IOW('p', 205, struct pr_clear)
  68. #endif /* _PR_H */