xfs_iwalk.h 1.8 KB

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  1. /* SPDX-License-Identifier: GPL-2.0-or-later */
  2. /*
  3. * Copyright (C) 2019 Oracle. All Rights Reserved.
  4. * Author: Darrick J. Wong <darrick.wong@oracle.com>
  5. */
  6. #ifndef __XFS_IWALK_H__
  7. #define __XFS_IWALK_H__
  8. /*
  9. * Return codes for the inode/inobt walk function are 0 to continue iterating,
  10. * and non-zero to stop iterating. Any non-zero value will be passed up to the
  11. * iwalk or inobt_walk caller. The special value -ECANCELED can be used to
  12. * stop iteration, as neither iwalk nor inobt_walk will ever generate that
  13. * error code on their own.
  14. */
  15. /* Walk all inodes in the filesystem starting from @startino. */
  16. typedef int (*xfs_iwalk_fn)(struct xfs_mount *mp, struct xfs_trans *tp,
  17. xfs_ino_t ino, void *data);
  18. int xfs_iwalk(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino,
  19. unsigned int flags, xfs_iwalk_fn iwalk_fn,
  20. unsigned int inode_records, void *data);
  21. int xfs_iwalk_threaded(struct xfs_mount *mp, xfs_ino_t startino,
  22. unsigned int flags, xfs_iwalk_fn iwalk_fn,
  23. unsigned int inode_records, bool poll, void *data);
  24. /* Only iterate inodes within the same AG as @startino. */
  25. #define XFS_IWALK_SAME_AG (0x1)
  26. #define XFS_IWALK_FLAGS_ALL (XFS_IWALK_SAME_AG)
  27. /* Walk all inode btree records in the filesystem starting from @startino. */
  28. typedef int (*xfs_inobt_walk_fn)(struct xfs_mount *mp, struct xfs_trans *tp,
  29. xfs_agnumber_t agno,
  30. const struct xfs_inobt_rec_incore *irec,
  31. void *data);
  32. int xfs_inobt_walk(struct xfs_mount *mp, struct xfs_trans *tp,
  33. xfs_ino_t startino, unsigned int flags,
  34. xfs_inobt_walk_fn inobt_walk_fn, unsigned int inobt_records,
  35. void *data);
  36. /* Only iterate inobt records within the same AG as @startino. */
  37. #define XFS_INOBT_WALK_SAME_AG (XFS_IWALK_SAME_AG)
  38. #define XFS_INOBT_WALK_FLAGS_ALL (XFS_INOBT_WALK_SAME_AG)
  39. #endif /* __XFS_IWALK_H__ */