xfs_fsmap.h 1.0 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2017 Oracle. All Rights Reserved.
  4. * Author: Darrick J. Wong <darrick.wong@oracle.com>
  5. */
  6. #ifndef __XFS_FSMAP_H__
  7. #define __XFS_FSMAP_H__
  8. struct fsmap;
  9. /* internal fsmap representation */
  10. struct xfs_fsmap {
  11. dev_t fmr_device; /* device id */
  12. uint32_t fmr_flags; /* mapping flags */
  13. uint64_t fmr_physical; /* device offset of segment */
  14. uint64_t fmr_owner; /* owner id */
  15. xfs_fileoff_t fmr_offset; /* file offset of segment */
  16. xfs_filblks_t fmr_length; /* length of segment, blocks */
  17. };
  18. struct xfs_fsmap_head {
  19. uint32_t fmh_iflags; /* control flags */
  20. uint32_t fmh_oflags; /* output flags */
  21. unsigned int fmh_count; /* # of entries in array incl. input */
  22. unsigned int fmh_entries; /* # of entries filled in (output). */
  23. struct xfs_fsmap fmh_keys[2]; /* low and high keys */
  24. };
  25. void xfs_fsmap_to_internal(struct xfs_fsmap *dest, struct fsmap *src);
  26. int xfs_getfsmap(struct xfs_mount *mp, struct xfs_fsmap_head *head,
  27. struct fsmap *out_recs);
  28. #endif /* __XFS_FSMAP_H__ */