xfs_trans_space.h 3.4 KB

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  1. /*
  2. * Copyright (c) 2000,2005 Silicon Graphics, Inc.
  3. * All Rights Reserved.
  4. *
  5. * This program is free software; you can redistribute it and/or
  6. * modify it under the terms of the GNU General Public License as
  7. * published by the Free Software Foundation.
  8. *
  9. * This program is distributed in the hope that it would be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. * GNU General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU General Public License
  15. * along with this program; if not, write the Free Software Foundation,
  16. * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  17. */
  18. #ifndef __XFS_TRANS_SPACE_H__
  19. #define __XFS_TRANS_SPACE_H__
  20. /*
  21. * Components of space reservations.
  22. */
  23. #define XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) \
  24. (((mp)->m_alloc_mxr[0]) - ((mp)->m_alloc_mnr[0]))
  25. #define XFS_EXTENTADD_SPACE_RES(mp,w) (XFS_BM_MAXLEVELS(mp,w) - 1)
  26. #define XFS_NEXTENTADD_SPACE_RES(mp,b,w)\
  27. (((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \
  28. XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \
  29. XFS_EXTENTADD_SPACE_RES(mp,w))
  30. #define XFS_DAENTER_1B(mp,w) ((w) == XFS_DATA_FORK ? (mp)->m_dirblkfsbs : 1)
  31. #define XFS_DAENTER_DBS(mp,w) \
  32. (XFS_DA_NODE_MAXDEPTH + (((w) == XFS_DATA_FORK) ? 2 : 0))
  33. #define XFS_DAENTER_BLOCKS(mp,w) \
  34. (XFS_DAENTER_1B(mp,w) * XFS_DAENTER_DBS(mp,w))
  35. #define XFS_DAENTER_BMAP1B(mp,w) \
  36. XFS_NEXTENTADD_SPACE_RES(mp, XFS_DAENTER_1B(mp, w), w)
  37. #define XFS_DAENTER_BMAPS(mp,w) \
  38. (XFS_DAENTER_DBS(mp,w) * XFS_DAENTER_BMAP1B(mp,w))
  39. #define XFS_DAENTER_SPACE_RES(mp,w) \
  40. (XFS_DAENTER_BLOCKS(mp,w) + XFS_DAENTER_BMAPS(mp,w))
  41. #define XFS_DAREMOVE_SPACE_RES(mp,w) XFS_DAENTER_BMAPS(mp,w)
  42. #define XFS_DIRENTER_MAX_SPLIT(mp,nl) 1
  43. #define XFS_DIRENTER_SPACE_RES(mp,nl) \
  44. (XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \
  45. XFS_DIRENTER_MAX_SPLIT(mp,nl))
  46. #define XFS_DIRREMOVE_SPACE_RES(mp) \
  47. XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK)
  48. #define XFS_IALLOC_SPACE_RES(mp) \
  49. (XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp)-1)
  50. /*
  51. * Space reservation values for various transactions.
  52. */
  53. #define XFS_ADDAFORK_SPACE_RES(mp) \
  54. ((mp)->m_dirblkfsbs + XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK))
  55. #define XFS_ATTRRM_SPACE_RES(mp) \
  56. XFS_DAREMOVE_SPACE_RES(mp, XFS_ATTR_FORK)
  57. /* This macro is not used - see inline code in xfs_attr_set */
  58. #define XFS_ATTRSET_SPACE_RES(mp, v) \
  59. (XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v))
  60. #define XFS_CREATE_SPACE_RES(mp,nl) \
  61. (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
  62. #define XFS_DIOSTRAT_SPACE_RES(mp, v) \
  63. (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v))
  64. #define XFS_GROWFS_SPACE_RES(mp) \
  65. (2 * XFS_AG_MAXLEVELS(mp))
  66. #define XFS_GROWFSRT_SPACE_RES(mp,b) \
  67. ((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK))
  68. #define XFS_LINK_SPACE_RES(mp,nl) \
  69. XFS_DIRENTER_SPACE_RES(mp,nl)
  70. #define XFS_MKDIR_SPACE_RES(mp,nl) \
  71. (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
  72. #define XFS_QM_DQALLOC_SPACE_RES(mp) \
  73. (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \
  74. XFS_DQUOT_CLUSTER_SIZE_FSB)
  75. #define XFS_QM_QINOCREATE_SPACE_RES(mp) \
  76. XFS_IALLOC_SPACE_RES(mp)
  77. #define XFS_REMOVE_SPACE_RES(mp) \
  78. XFS_DIRREMOVE_SPACE_RES(mp)
  79. #define XFS_RENAME_SPACE_RES(mp,nl) \
  80. (XFS_DIRREMOVE_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
  81. #define XFS_SYMLINK_SPACE_RES(mp,nl,b) \
  82. (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b))
  83. #endif /* __XFS_TRANS_SPACE_H__ */